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Outline
Indent Level
Color Curly Brackets (indicating CPC extensions to IPC)

CPC
COOPERATIVE PATENT CLASSIFICATION
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MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED, VISIBLE OR ULTRA-VIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY (light sources F21, H01J, H01K, H05B; investigating properties of materials by optical means G01N)
NOTE
-
This subclass covers the detection of the presence or absence of infra-red, visible, or ultra-violet light, not otherwise provided for.

Attention is drawn to the Notes following the title of class G01.

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Photometry, e.g. photographic exposure meter (spectrophotometry G01J 3/00; specially adapted for radiation pyrometry G01J 5/00)
{
exposure meters built in cameras G03B 17/06
}
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.
Details
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G01J 1/0204
. .
{
Compact construction
}
G01J 1/0209
. . .
{
Monolithic
}
G01J 1/0214
. .
{
Constructional arrangements for removing stray light
}
G01J 1/0219
. .
{
Electrical interface; User interface
}
G01J 1/0223
. .
{
Sample holders for photometry
}
G01J 1/0228
. .
{
Control of working procedures; Failure detection; Spectral bandwidth calculation
}
G01J 1/0233
. .
{
Handheld
}
G01J 1/0238
. .
{
making use of sensor-related data, e.g. for identification of sensor or optical parts
}
G01J 1/0242
. .
{
Control or determination of height or angle information of sensors or receivers; Goniophotometry
}
G01J 1/0247
. .
{
using a charging unit
}
G01J 1/0252
. .
{
Constructional arrangements for compensating for fluctuations caused by e.g. temperature, or using cooling or temperature stabilization of parts of the device; Controlling the atmosphere inside a photometer; Purge systems, cleaning devices (protection against electromagnetic interferences G01J 2001/0276)
}
G01J 1/0266
. .
{
Field-of-view determination; Aiming or pointing of a photometer; Adjusting alignment; Encoding angular position; Size of the measurement area; Position tracking; Photodetection involving different fields of view for a single detector
}
G01J 1/0271
. .
{
Housings; Attachments or accessories for photometers
}
G01J 1/029
. .
{
Multi-channel photometry
}
G01J 1/0295
. .
{
Constructional arrangements for removing other types of optical noise or for performing calibration
}
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. .
Optical or mechnical part
{
supplementary adjustable parts
}
G01J 1/0403
. . .
{
Mechanical elements; Supports for optical elements; Scanning arrangements
}
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G01J 1/0407
. . .
{
Optical elements not provided otherwise, e.g. manifolds, windows, holograms, gratings
}
G01J 1/0411
. . . .
{
using focussing or collimating elements, i.e. lenses or mirrors; Aberration correction
}
G01J 1/0414
. . . .
{
using plane or convex mirrors, parallel phase plates, or plane beam-splitters
}
G01J 1/0418
. . . .
{
using attenuators
}
G01J 1/0422
. . . .
{
using light concentrators, collectors or condensers
}
G01J 1/0425
. . . .
{
using optical fibers
}
G01J 1/0429
. . . .
{
using polarisation elements
}
G01J 1/0433
. . . .
{
using notch filters
}
G01J 1/0437
. . . .
{
using masks, aperture plates, spatial light modulators, spatial filters, e.g. reflective filters
}
G01J 1/044
. . . .
{
using shutters
}
G01J 1/0444
. . . .
{
using means for replacing an element by another, e.g. for replacing a filter or grating
}
G01J 1/0448
. . . .
{
Adjustable, e.g. focussing
}
G01J 1/0451
. . . .
{
using means for illuminating a slit efficiently, e.g. entrance slit of a photometer or entrance face of fiber
}
G01J 1/0455
. . . .
{
having a throughhole enabling the optical element to fulfil an additional optical function, e.g. a mirror or grating having a through-hole for a light collecting or light injecting optical fibre
}
G01J 1/0459
. . . .
{
using an optical amplifier of light or coatings to improve optical coupling
}
G01J 1/0462
. . . .
{
Slit arrangements
}
G01J 1/0466
. . . .
{
with a sighting port
}
G01J 1/047
. . . .
{
using extension/expansion of solids or fluids, change of resonant frequency or extinction effect
}
G01J 1/0474
. . . .
{
Diffusers (cavities G01J 2001/0481)
}
G01J 1/0477
. . . .
{
Prisms, wedges
}
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G01J 1/0488
. . .
{
with spectral filtering
}
G01J 1/0492
. . . .
{
using at least two different filters
}
. . .
Restricting the angle of incident light
. .
Arrangements of light sources specially adapted for photometry
{
standard sources, also using luminescent or radioactive material
}
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G01J 1/10
.
by comparison with reference light or electric value
{
provisionally void
}
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G01J 1/12
. .
using wholly visual means (G01J 1/20 takes precedence)
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G01J 1/122
. . .
{
Visual exposure meters for determining the exposure time in photographical recording or reproducing
}
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G01J 1/124
. . . .
{
based on the comparison of the intensity of measured light with a comparison source or comparison illuminated surface
}
G01J 1/126
. . . . .
{
for enlarging apparatus
}
G01J 1/128
. . . . .
{
for copy- or printing apparatus
}
G01J 1/14
. . .
using comparison with a surface of graded brightness,
{
e.g. for view taking; for analytical applications G01N 21/293
}
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. .
using electric radiation detectors (G01J 1/20 takes precedence)
. . .
{
Arrangements with two photodetectors, the signals of which are compared
}
. . .
using comparison with a reference electric value
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G01J 1/20
. .
intensity of the measured or reference value being varied to equalise their effects at the detectors, e.g. by varying incidence angle
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. . .
using a variable element in the light-path, e.g. filter, polarising means (G01J 1/34 takes precedence)
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G01J 1/24
. . . .
using electric radiation detectors
. . . . .
adapted for automatic variation of the measured or reference value (regulation of light intensity G05D 25/00)
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G01J 1/28
. . .
using variation of intensity or distance of source (G01J 1/34 takes precedence)
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G01J 1/30
. . . .
using electric radiation detectors
. . . . .
adapted for automatic variation of the measured or reference value (regulation of light intensity G05D 25/00)
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. . .
using separate light paths used alternately or sequentially, e.g. flicker
. . . .
using electric radiation detectors
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G01J 1/38
.
using wholly visual means (G01J 1/10 takes precedence)
G01J 1/40
. .
using limit or visibility or extinction effect
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.
using electric radiation detectors (optical or mechanical part G01J 1/04; by comparison with a reference light or electric value G01J 1/10)
G01J 1/4204
. .
{
with determination of ambient light (solar light G01J 2001/4266)
}
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G01J 1/4209
. .
{
Photoelectric exposure meters for determining the exposure time in recording or reproducing
}
G01J 1/4214
. . .
{
specially adapted for view-taking apparatus
}
G01J 1/4219
. . .
{
specially adapted for enlargers
}
G01J 1/4223
. . .
{
specially adapted for copy - or printing apparatus
}
. .
{
arrangements with two or more detectors, e.g. for sensitivity compensation
}
. .
{
applied to monitoring the characteristics of a beam, e.g. laser beam, headlamp beam (monitoring arrangements for lasers in general H01S 3/0014)
}
. .
{
applied to measurement of ultraviolet light (using counting tubes G01T)
}
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. .
Electric circuits
{
for command of an exposure part G03B 7/02
}
. . .
using a capacitor
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G01J 1/48
.
using chemical effects
. .
using change in colour of an indicator, e.g. actinometer
G01J 1/52
. .
using photographic effects
G01J 1/54
. .
by observing photo-reactions between gases
G01J 1/56
.
using radiation pressure or radiometer effect
.
using luminescence generated by light
G01J 1/60
.
by measuring the pupil of the eye
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Spectrometry; Spectrophotometry; Monochromators; Measuring colour
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.
Details
G01J 3/0202
. .
{
Mechanical elements; Supports for optical elements
}
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G01J 3/0205
. .
{
Optical elements not provided otherwise, e. g. optical manifolds, diffusers, windows
}
G01J 3/0208
. . .
{
using focussing or collimating elements, e.g. lenses or mirrors; performing aberration correction
}
G01J 3/021
. . .
{
using plane or convex mirrors, parallel phase plates, or particular reflectors
}
G01J 3/0213
. . .
{
using attenuators
}
G01J 3/0216
. . .
{
using light concentrators or collectors or condensers
}
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G01J 3/0218
. . .
{
using optical fibers
}
G01J 3/0221
. . . .
{
the fibers defining an entry slit
}
G01J 3/0224
. . .
{
using polarising or depolarising elements
}
G01J 3/0227
. . .
{
using notch filters
}
G01J 3/0229
. . .
{
using masks, aperture plates, spatial light modulators or spatial filters, e.g. reflective filters
}
G01J 3/0232
. . .
{
using shutters
}
G01J 3/0235
. . .
{
using means for replacing an element by another, for replacing a filter or a grating
}
G01J 3/0237
. . .
{
Adjustable, e.g. focussing
}
G01J 3/024
. . .
{
using means for illuminating a slit efficiently (e.g. entrance slit of a spectrometer or entrance face of fiber)
}
G01J 3/0243
. . .
{
having a through-hole enabling the optical element to fulfil an additional optical function, e.g. a mirror or grating having a throughhole for a light collecting or light injecting optical fiber
}
G01J 3/0245
. . .
{
using an optical amplifier of light, e.g. doped fiber
}
G01J 3/0248
. . .
{
using a sighting port, e.g. camera or human eye
}
G01J 3/0251
. . .
{
Colorimeters making use of an integrating sphere
}
G01J 3/0254
. . .
{
Spectrometers, other than colorimeters, making use of an integrating sphere
}
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G01J 3/0256
. .
{
Compact construction
}
G01J 3/0259
. . .
{
Monolithic
}
G01J 3/0262
. .
{
Constructional arrangements for removing stray light
}
G01J 3/0264
. .
{
Electrical interface; User interface
}
G01J 3/0267
. .
{
Sample holders for colorimetry
}
G01J 3/027
. .
{
Control of working procedures of a spectrometer; Failure detection; Bandwidth calculation
}
G01J 3/0272
. .
{
Handheld
}
G01J 3/0275
. .
{
making use of sensor-related data, e. g. for identification of sensor parts or optical elements
}
G01J 3/0278
. .
{
Control or determination of height or angle information for sensors or receivers
}
G01J 3/0283
. .
{
using a charging unit
}
G01J 3/0286
. .
{
Constructional arrangements for compensating for fluctuations caused by temperature, humidity or pressure, or using cooling or temperature stabilization of parts of the device; Controlling the atmosphere inside a spectrometer, e.g. vacuum
}
G01J 3/0289
. .
{
Field-of-view determination; Aiming or pointing of a spectrometer; Adjusting alignment; Encoding angular position; Size of measurement area; Position tracking
}
G01J 3/0291
. .
{
Housings; Spectrometer accessories; Spatial arrangement of elements, e.g. folded path arrangements
}
G01J 3/0294
. .
{
Multi-channel spectroscopy
}
G01J 3/0297
. .
{
Constructional arrangements for removing other types of optical noise or for performing calibration
}
. .
Slit arrangements
{
slit adjustment
}
. .
Scanning arrangements
{
arrangements for order-selection
}
. .
Beam switching arrangements
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. .
Arrangements of light sources specially adapted for spectrometry or colorimetry
G01J 3/108
. . .
{
for measurement in the infra-red range
}
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.
Generating the spectrum; Monochromators
G01J 3/1256
. .
{
using acousto-optic tunable filter; (acousto-optic elements or systems G02F 1/11, G02F 1/33)
}
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. .
using refracting elements, e.g. prisms (G01J 3/18, G01J 3/26 take precedence)
{
prisms per se G02B 5/04
}
. . .
with autocollimation
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. .
using diffraction elements, e.g. grating (gratings per se G02B)
G01J 3/1804
. . .
{
Plane gratings
}
G01J 3/1809
. . .
{
Echelle gratings
}
G01J 3/1833
. . .
{
Grazing incidence
}
G01J 3/1838
. . .
{
Holographic gratings
}
G01J 3/189
. . .
{
using at least one grating in an off-plane configuration
}
G01J 3/1895
. . .
{
using fiber Bragg gratings or gratings integrated in a waveguide
}
G01J 3/20
. . .
Rowland circle spectrometers
G01J 3/22
. . .
Littrow mirror spectrometers
WARNING
-
material provisionally in G01J 3/18

G01J 3/24
. . .
using gratings profiled to favour a specific order
. .
using multiple reflection, e.g. Fabry-Perot interferometer, variable interference filters
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.
Investigating the spectrum (using colour filters G01J 3/51)
. .
{
using photoelectric array detector
}
. .
{
Imaging spectrometer
}
. .
{
using modulation grid; Grid spectrometers
}
. .
{
Rapid scan spectrometers; Time resolved spectrometry
}
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G01J 3/30
. .
Measuring the intensity of spectral line directly on the spectrum itself (G01J 3/42, G01J 3/44 take precedence)
. . .
Investigating bands of a spectrum in sequence by a single detector
. . .
Investigating two or more bands of a spectrum by separate detectors
G01J 3/40
. .
Measuring the intensity of spectral lines by determining density of a photograph of the spectrum; Spectrography (G01J 3/42, G01J 3/44 take precedence)
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. .
Absorption spectrometry; Double beam spectrometry; Flicker spectrometry; Reflection spectrometry (beam switching arrangements G01J 3/08)
G01J 3/427
. . .
Dual wavelengths spectrometry
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. . .
Modulation spectrometry; Derivative spectrometry
. . . .
{
Frequency modulated spectrometry
}
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. .
Raman spectrometry; Scattering spectrometry;
{
Fluorescence spectrometry
}
. . .
{
Fluorescence spectrometry
}
. . .
{
Scattering spectrometry (particle sizing by light scattering G01N 15/0205; optical velocimetry of particles G01P5/00D)
}
. .
Emission spectrometry
. .
Polarisation spectrometry
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. .
Interferometric spectrometry
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. . .
by correlation of the amplitudes
G01J 3/4531
. . . .
{
Devices without moving parts
}
G01J 3/4532
. . . .
{
Devices of compact or symmetric construction (G01J 3/4531 takes precedence)
}
G01J 3/4535
. . . .
{
Devices with moving mirror (G01J 3/4532 takes precedence)
}
G01J 3/4537
. . . .
{
Devices with refractive scan
}
. .
Correlation spectrometry, e.g. of the intensity (G01J 3/453 takes precedence)
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.
Measurement of colour; Colour measuring devices, e.g. colorimeters (measuring colour temperature G01J 5/60)
. .
{
with colour spinners
}
. .
{
Computing operations in or between colour spaces; Colour management systems
}
. .
{
Colour matching
}
. .
{
taking into account the colour perception of the eye; using tristimulus detection
}
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. .
using electric radiation detectors
. . .
{
Colorimeters using spectrally-selective light sources, e.g. LEDs
}
G01J 3/502
. . .
{
using a dispersive element, e.g. grating, prism
}
G01J 3/504
. . .
{
Goniometric colour measurements, for example measurements of metallic or flake based paints
}
G01J 3/505
. . .
{
measuring the colour produced by lighting fixtures other than screens, monitors, displays or CRTs
}
G01J 3/506
. . .
{
measuring the colour produced by screens, monitors, displays or CRTs
}
G01J 3/508
. . .
{
measuring the colour of teeth
}
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. . .
using colour filters
. . . .
{
having fixed filter-detector pairs
}
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. .
using colour charts
. . .
{
circular colour charts
}
. . .
{
Calibration of colorimeters
}
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. . .
{
for choosing a combination of different colours, e.g. to produce a pleasing effect for an observer
}
. . . .
{
using colour harmony theory
}
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Measuring polarisation of light (investigating or analysing materials by measuring rotation of plane of polarised light G01N 21/21)
.
Polarimeters of separated-field type; Polarimeters of half-shadow type
.
Polarimeters using electric detection means (G01J 4/02 takes precedence)
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Radiation pyrometry (photometry in general G01J 1/00; spectrometry in general G01J 3/00)
{
measuring temperature in general, i.e. with a contacting sensor G01K; calorimetry of radiation beams G01K 17/00; direction finders for radiant sources G01S; intrusion detection by radiation G08B
}
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.
{
for sensing the radiant heat transfer of samples, e.g. emittance meter
}
G01J 5/0007
. .
{
of wafers or semiconductor substrates, e.g. using Rapid Thermal Processing
}
G01J 5/0011
. .
{
Ear thermometers (G01J 5/021 and G01J 5/049 take precedence)
}
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.
{
for sensing the radiation from gases, flames
}
G01J 5/0018
. .
{
Flames, plasma or welding
}
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.
{
for sensing the radiation of moving bodies
}
G01J 5/0025
. .
{
Living bodies (ear thermometers G01J 5/0011; detecting, measuring or recording for diagnostic purposes A61B5)
}
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G01J 5/0037
.
{
for sensing the heat emitted by liquids
}
G01J 5/004
. .
{
by molten metals
}
G01J 5/0044
.
{
Furnaces, ovens, kilns (G01J 5/0007, G01J 5/004 take precedence)
}
G01J 5/0066
.
{
for hot spots detection
}
G01J 5/007
.
{
for earth observation
}
G01J 5/0088
.
{
in turbines
}
G01J 5/0096
.
{
for measuring wires, electrical contacts or electronic systems
}
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.
Details
G01J 5/0205
. .
{
Mechanical elements; Supports for optical elements
}
G01J 5/021
. .
{
Probe covers for thermometers, e.g. tympanic thermometers; Containers for probe covers; Disposable probes
}
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G01J 5/0215
. .
{
Compact construction
}
G01J 5/022
. . .
{
Monolithic
}
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G01J 5/0225
. .
{
Shape of the cavity itself or of elements contained in or suspended over the cavity
}
G01J 5/023
. . .
{
Particular leg structure or construction or shape; Nanotubes
}
G01J 5/0235
. . .
{
Spacers, e.g. for avoidance of stiction
}
G01J 5/024
. . .
{
Special manufacturing steps or sacrificial layers or layer structures
}
G01J 5/0245
. . .
{
for performing thermal shunt
}
G01J 5/025
. .
{
Interfacing a pyrometer to an external device or network; User interface
}
G01J 5/0255
. .
{
Sample holders for pyrometry; Cleaning of sample (using a gas purge G01J 5/029)
}
G01J 5/026
. .
{
Control of working procedures of a pyrometer, other than calibration (calibration G01J 2005/0048 and G01J 5/522); Detecting failures in the functioning of a pyrometer; Bandwidth calculation; Gain control; Security control
}
G01J 5/0265
. .
{
Handheld, portable (ear thermometers G01J 5/049)
}
G01J 5/027
. .
{
making use of sensor-related data, e.g. for identification of sensor parts or optical elements
}
G01J 5/0275
. .
{
Control or determination of height or distance or angle information for sensors or receivers
}
G01J 5/028
. .
{
using a charging unit or battery
}
G01J 5/0285
. .
{
Constructional arrangements for compensating for fluctuations caused by humidity, pressure or electromagnetic waves; Controlling the atmosphere inside a pyrometer (G01J 5/029 takes precedence)
}
G01J 5/029
. .
{
using a gas purge
}
G01J 5/0295
. .
{
Nulling devices or absolute detection
}
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. .
Casings
{
Mountings
}
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. . .
{
Mountings in enclosures or in a particular environment
}
G01J 5/042
. . . .
{
High-temperature environment (G01J 5/0007, G01J 5/0044, G01J 5/0088 and G01J 5/004 take precedence)
}
G01J 5/043
. . . .
{
Prevention or determination of dust, smog or clogging (G01J 5/029 takes precedence)
}
G01J 5/044
. . . .
{
Environment with strong vibrations or shocks
}
G01J 5/045
. . . .
{
Sealings; Vacuum enclosures; Encapsulated packages; Wafer bonding structures; Getter arrangements (getter arrangements per se H01L 23/26 and H01L31/0203B)
}
G01J 5/046
. . .
{
Materials; Selection of thermal materials
}
G01J 5/047
. . .
{
Mobile mounting; Scanning arrangements
}
G01J 5/048
. . .
{
Protective parts
}
G01J 5/049
. . .
{
Casings for tympanic thermometers
}
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. .
Arrangements for eliminating effects of disturbing radiation
. . .
{
using cooling or thermostating of parts of the apparatus (cooling techniques in general F17C, F25J)
}
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. .
Optical features
{
optical-mechanical scanning H04N 5/33, G02B 26/10
}
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G01J 5/0803
. . .
{
Optical elements not provided otherwise, e.g. optical manifolds, gratings, holograms, cubic beamsplitters, prisms, particular coatings
}
G01J 5/0806
. . . .
{
using focussing or collimating elements,e.g. lenses or mirrors
}
G01J 5/0809
. . . .
{
using plane or convex mirrors, parallel phase plates or particular reflectors
}
G01J 5/0812
. . . .
{
using attenuators
}
G01J 5/0815
. . . .
{
using light concentrators, collectors or condensers
}
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G01J 5/0818
. . . .
{
using waveguides, rods or tubes
}
G01J 5/0821
. . . . .
{
using optical fibers
}
G01J 5/0825
. . . .
{
using polarizing elements
}
G01J 5/0828
. . . .
{
using notch filters
}
G01J 5/0831
. . . .
{
using masks, e.g. structured apertures, using aperture plates or using spatial light modulators or spatial filters, e.g. reflective filters
}
G01J 5/0834
. . . .
{
using shutters or modulators
}
G01J 5/0837
. . . .
{
using micro-antennas, e.g. bow-tie
}
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G01J 5/084
. . . .
{
Adjustable, slidable
}
G01J 5/0843
. . . . .
{
Manually adjustable
}
G01J 5/0846
. . . .
{
using multiple detectors for performing different types of detection, e.g. radiometry and reflectometry channels
}
G01J 5/085
. . . .
{
having a throughhole enabling the optical element to fulfil an additional optical function, e.g. a mirror or grating having a throughhole for a light collecting or light injecting optical fiber
}
G01J 5/0853
. . . .
{
using infrared absorbers other than the usual absorber layers deposited on infrared detectors like bolometers, wherein the heat propagation between the absorber and the detecting element occurs within a solid
}
G01J 5/0856
. . . .
{
Slit arrangements
}
G01J 5/0859
. . . .
{
using a sighting arrangement, or a camera for the same purpose
}
G01J 5/0862
. . . .
{
using optical filters (G01J 5/602, G01J 5/0828 take precedence)
}
G01J 5/0865
. . . .
{
using means for replacing an element by another, e.g. for replacing a filter
}
G01J 5/0868
. . . .
{
using means for illuminating a slit or a surface efficiently, e.g. entrance slit of a pyrometer or entrance face of a fiber
}
G01J 5/0871
. . . .
{
Beam switching arrangements; Photodetection involving different fields of view for a single detector
}
G01J 5/0875
. . . .
{
Windows or their fastening arrangements
}
G01J 5/0878
. . . .
{
Diffusers
}
Collapse
G01J 5/0881
. . .
{
Compact construction
}
G01J 5/0884
. . . .
{
Monolithic
}
G01J 5/0887
. . .
{
Integrating cavities mimicking black bodies, wherein the heat propagation between the black body and the measuring element does not occur within a solid; Use of bodies placed inside the fluid stream for measurement of the temperature of gases; Use of the reemission from a surface, e.g. reflective surface; Emissivity enhancement by multiple reflections
}
G01J 5/089
. . .
{
Field-of-view determination; Aiming or pointing of a pyrometer; Adjusting alignment; Encoding angular position; Size of the measuring area; Position tracking
}
G01J 5/0893
. . .
{
Arrangements to attach devices to a pyrometer, i.e. attaching an optical interface; Spatial relative arrangement of optical elements, e.g. folded beam path (G01J 5/049 takes precedence)
}
G01J 5/0896
. . .
{
using a light source, e.g. for illuminating a surface
}
Collapse
.
using electric radiation detectors
Collapse
. .
using thermoelectric elements, e.g. thermocouples (thermoelectric elements per se H01L 35/00, H01L 37/00)
Collapse
. . .
Electrical features
. . . .
Arrangements with respect to the cold junction; Compensating influence of ambient temperature or other variables
G01J 5/18
. . . .
Special adaptation for indicating or recording (indicating or recording measured values in general G01D)
Collapse
. .
using resistors, thermistors, or semi-conductors sensitive to radiation
Collapse
. . .
Electrical features
G01J 5/24
. . . .
Use of a specially-adapted circuit, e.g. bridge circuit
G01J 5/26
. . . .
Special adaptation for indicating or recording (indicating or recording measured values in general G01D)
Collapse
G01J 5/28
. .
using photo-emissive, photo-conductive, or photo-voltaic cells
Collapse
G01J 5/30
. . .
Electrical features
G01J 5/32
. . . .
Special adaptation for indicating or recording (indicating or recording measured values in general G01D)
. .
using capacitors
{
e.g. pyroelectric elements
}
G01J 5/36
. .
using ionisation of gases
Collapse
G01J 5/38
.
using extension or expansion of solids or fluids
. .
using bimetallic elements
G01J 5/42
. .
using Golay cells
. .
using change of resonant frequency, e.g. of piezo-electric crystal
G01J 5/46
.
using radiation pressure or radiometer effect
G01J 5/48
.
using wholly visual means
Collapse
G01J 5/50
.
using techniques specified in the subgroups below
G01J 5/505
. .
{
using photographic recording
}
Collapse
. .
using comparison with reference sources, e.g. disappearing-filament pyrometer
. . .
{
Reference sources, e.g. standard lamps; Black bodies
}
G01J 5/524
. . .
{
using a reference heater of the emissive surface type, e.g. for selectively absorbing materials
}
G01J 5/54
. . .
Optical features
G01J 5/56
. . .
Electrical features
. .
using absorption; using polarisation; using extinction effect
Collapse
. .
using determination of colour temperature
{
Pyrometry using two wavelengths filtering; using selective, monochromatic or bandpass filtering; using spectral scanning
}
. . .
{
using spectral scanning
}
. . .
{
using selective, monochromatic or bandpass filtering
}
G01J 5/605
. . .
{
using visual determination
}
. .
using means for chopping the light
{
Compensation for background radiation of chopper element
}
Measuring velocity of light
Collapse
Measuring optical phase difference (devices or arrangements for controlling the phase of light beams G02F 1/01); Determining degree of coherence; Measuring optical wavelength (spectrometry G01J 3/00)
Collapse
.
by interferometric methods (using interferometers for measuring optically the linear dimensions of objects G01B 9/02)
. .
{
by shearing interferometric methods
}
. .
{
Measuring optical wavelength
}
.
by beating two waves of a same source but of different frequency and measuring the phase shift of the lower frequency obtained
Measuring the characteristics of individual optical pulses or of optical pulse trains
Collapse
G01J 2001/00
Photometry, e.g. photographic exposure meter (spectrophotometry G01J 3/00; specially adapted for radiation pyrometry G01J 5/00)
{
exposure meters built in cameras G03B 17/06
}
Collapse
G01J 2001/02
.
Details
Collapse
G01J 2001/0257
. .
portable
G01J 2001/0261
. . .
Pocket size; Card size
Collapse
G01J 2001/0276
. .
Protection
G01J 2001/028
. . .
against liquid
G01J 2001/0285
. . .
against laser damage
Collapse
G01J 2001/04
. .
Optical or mechnical part
{
supplementary adjustable parts
}
G01J 2001/0481
. . .
Preset integrating sphere or cavity
G01J 2001/0485
. . .
Cosinus correcting or purposely modifying the angular response of a light sensor
Collapse
G01J 2001/0488
. . .
{
with spectral filtering
}
G01J 2001/0496
. . . .
using fiber Bragg gratings
Collapse
G01J 2001/06
. . .
Restricting the angle of incident light
G01J 2001/061
. . . .
Baffles
G01J 2001/062
. . . .
by fibre-optic packed bundle
Collapse
G01J 2001/063
. . . .
with selectable field of view
G01J 2001/065
. . . . .
by changing elements
G01J 2001/066
. . . . .
with an aiming optical device
Collapse
G01J 2001/067
. . . .
for angle scan
G01J 2001/068
. . . . .
by diaphragm or the like
Collapse
G01J 2001/08
. .
Arrangements of light sources specially adapted for photometry
{
standard sources, also using luminescent or radioactive material
}
G01J 2001/083
. . .
Testing response of detector
G01J 2001/086
. . .
Calibrating drift correction
Collapse
G01J 2001/10
.
by comparison with reference light or electric value
{
provisionally void
}
Collapse
G01J 2001/16
. .
using electric radiation detectors (G01J 1/20 takes precedence)
G01J 2001/1605
. . .
Null method
Collapse
G01J 2001/161
. . .
Ratio method, i.e. Im/Ir
G01J 2001/1615
. . . .
Computing a difference/sum ratio, i.e. (Im - Ir)/(Im + Ir)
G01J 2001/1621
. . . .
Comparing a duty ratio of pulses
Collapse
G01J 2001/1626
. . .
{
Arrangements with two photodetectors, the signals of which are compared
}
G01J 2001/1631
. . . .
Bridge circuit
Collapse
G01J 2001/1636
. . . .
one detector directly monitoring the source, e.g. also impulse time controlling
G01J 2001/1642
. . . . .
and acting on the detecting circuit
G01J 2001/1647
. . . .
one signal maintained constant
G01J 2001/1652
. . . .
one detector being transparent before the other one
G01J 2001/1657
. . . .
one signal being spectrally modified, e.g. for UV
G01J 2001/1663
. . . .
two detectors of different sensitivity
G01J 2001/1668
. . .
the measuring signal itself varying in time, e.g. periodic, for example blood pulsation
G01J 2001/1673
. . .
using a reference sample
Collapse
G01J 2001/1678
. . .
Comparing time separated signals, i.e. chopped
G01J 2001/1684
. . . .
and selecting also a DC level from the signal
G01J 2001/1689
. . . .
one separated signal being processed differently
G01J 2001/1694
. . . .
with a signal from on/off switched light source
Collapse
G01J 2001/18
. . .
using comparison with a reference electric value
Collapse
G01J 2001/182
. . . .
with SH sample and hold circuits
G01J 2001/184
. . . . .
on a succession of signals
Collapse
G01J 2001/186
. . . .
Comparison or correction from an electric source within the processing circuit
G01J 2001/188
. . . . .
on pulse train
Collapse
G01J 2001/20
. .
intensity of the measured or reference value being varied to equalise their effects at the detectors, e.g. by varying incidence angle
Collapse
G01J 2001/22
. . .
using a variable element in the light-path, e.g. filter, polarising means (G01J 1/34 takes precedence)
Collapse
G01J 2001/24
. . . .
using electric radiation detectors
G01J 2001/242
. . . . .
Filter wheel, i.e. absorption filter series graduated
G01J 2001/245
. . . . .
with two or more separate attenuated steps
G01J 2001/247
. . . . .
of spectral wedge type
Collapse
G01J 2001/34
. . .
using separate light paths used alternately or sequentially, e.g. flicker
Collapse
G01J 2001/36
. . . .
using electric radiation detectors
G01J 2001/363
. . . . .
Chopper stabilisation
G01J 2001/366
. . . . .
Balancing two paths
Collapse
G01J 2001/42
.
using electric radiation detectors (optical or mechanical part G01J 1/04; by comparison with a reference light or electric value G01J 1/10)
Collapse
G01J 2001/4228
. .
{
arrangements with two or more detectors, e.g. for sensitivity compensation
}
G01J 2001/4233
. . .
with selection of detector
G01J 2001/4238
. .
Pulsed light
G01J 2001/4242
. .
Modulated light, e.g. for synchronizing source and detector circuit
Collapse
G01J 2001/4247
. .
for testing lamps or other light sources
G01J 2001/4252
. . .
for testing LED`s
Collapse
G01J 2001/4257
. .
{
applied to monitoring the characteristics of a beam, e.g. laser beam, headlamp beam (monitoring arrangements for lasers in general H01S 3/0014)
}
G01J 2001/4261
. . .
Scan through beam in order to obtain a cross-sectional profile of the beam
Collapse
G01J 2001/4266
. .
for measuring solar light
G01J 2001/4271
. . .
Pyrrheliometer
G01J 2001/4276
. . .
Solar energy integrator over time
G01J 2001/428
. . .
for sunlight scattered by atmosphere
G01J 2001/4285
. . .
Pyranometer, i.e. integrating over space
G01J 2001/4295
. .
using a physical effect not covered by other subgroups of G01J 1/42
Collapse
G01J 2001/44
. .
Electric circuits
{
for command of an exposure part G03B 7/02
}
G01J 2001/4406
. . .
Plural ranges in circuit, e.g. switchable ranges; Adjusting sensitivity selecting gain values
Collapse
G01J 2001/4413
. . .
Type
G01J 2001/442
. . . .
Single-photon detection or photon counting
G01J 2001/4426
. . . .
with intensity to frequency or voltage to frequency conversion [IFC or VFC]
G01J 2001/4433
. . . .
Peak sensing
G01J 2001/444
. . .
Compensating; Calibrating, e.g. dark current, temperature drift, noise reduction or baseline correction; Adjusting
Collapse
G01J 2001/4446
. . .
Type of detector
G01J 2001/4453
. . . .
PMT
Collapse
G01J 2001/446
. . . .
Photodiode
G01J 2001/4466
. . . . .
Avalanche
G01J 2001/4473
. . . .
Phototransistor
G01J 2001/448
. . . .
Array (CCD)
G01J 2001/4486
. . . .
Streak tube
G01J 2001/4493
. . . .
with image intensifyer tube (IIT)
Collapse
G01J 2003/00
Spectrometry; Spectrophotometry; Monochromators; Measuring colour
G01J 2003/003
.
Comparing spectra of two light sources
G01J 2003/006
.
Fundamentals or review articles
Collapse
G01J 2003/02
.
Details
G01J 2003/0281
. .
slitless
Collapse
G01J 2003/04
. .
Slit arrangements
{
slit adjustment
}
G01J 2003/042
. . .
Slit wheel
G01J 2003/045
. . .
Sequential slits; Multiple slits
G01J 2003/047
. . .
Configuration of two or more entry or exit slits for predetermined delta-lambda
Collapse
G01J 2003/06
. .
Scanning arrangements
{
arrangements for order-selection
}
G01J 2003/061
. . .
Mechanisms, e.g. sine bar
Collapse
G01J 2003/062
. . .
motor-driven
G01J 2003/063
. . . .
Step motor
Collapse
G01J 2003/064
. . .
Use of other elements for scan, e.g. mirror, fixed grating
G01J 2003/065
. . . .
Use of fibre scan for spectral scan
G01J 2003/066
. . .
Microprocessor control of functions, e.g. slit, scan, bandwidth during scan
G01J 2003/067
. . .
Use of plane parallel plate, e.g. small scan, wobble
G01J 2003/068
. . .
tuned to preselected wavelengths
G01J 2003/069
. . .
Complex motion, e.g. rotation of grating and correcting translation
Collapse
G01J 2003/10
. .
Arrangements of light sources specially adapted for spectrometry or colorimetry
Collapse
G01J 2003/102
. . .
Plural sources
G01J 2003/104
. . . .
Monochromatic plural sources
G01J 2003/106
. . . .
the two sources being alternating or selectable, e.g. in two ranges or line:continuum
Collapse
G01J 2003/12
.
Generating the spectrum; Monochromators
G01J 2003/1204
. .
Grating and filter
G01J 2003/1208
. .
Prism and grating
Collapse
G01J 2003/1213
. .
Filters in general, e.g. dichroic, band
G01J 2003/1217
. . .
Indexed discrete filters or choppers
G01J 2003/1221
. . .
Mounting; Adjustment
Collapse
G01J 2003/1226
. .
Interference filters
G01J 2003/123
. . .
Indexed discrete filters
G01J 2003/1234
. . .
Continuously variable IF (CVIF); Wedge type
G01J 2003/1239
. . .
and separate detectors
G01J 2003/1243
. . .
Pivoting IF or other position variation
G01J 2003/1247
. . .
Tuning
G01J 2003/1252
. . .
Using "resonance cell", e.g. Na vapor
G01J 2003/126
. .
Focal isolation type
G01J 2003/1265
. .
the wavelengths being separated in time, e.g. through optical fibre array
G01J 2003/1269
. .
Electrooptic filter
G01J 2003/1273
. .
Order selection
G01J 2003/1278
. .
Mask with spectral selection
G01J 2003/1282
. .
Spectrum tailoring
G01J 2003/1286
. .
Polychromator in general
G01J 2003/1291
. .
polarised, birefringent
G01J 2003/1295
. .
Plural entry slits, e.g. for different incidences
Collapse
G01J 2003/14
. .
using refracting elements, e.g. prisms (G01J 3/18, G01J 3/26 take precedence)
{
prisms per se G02B 5/04
}
G01J 2003/145
. . .
Prism systems for straight view
Collapse
G01J 2003/18
. .
using diffraction elements, e.g. grating (gratings per se G02B)
Collapse
G01J 2003/1814
. . .
Double monochromator
G01J 2003/1819
. . . .
Double pass monochromator
G01J 2003/1823
. . . .
substractive
G01J 2003/1828
. . .
with order sorter or prefilter
Collapse
G01J 2003/1842
. . .
Types of grating
G01J 2003/1847
. . . .
Variable spacing
G01J 2003/1852
. . . .
Cylindric surface
G01J 2003/1857
. . . .
Toroid surface
G01J 2003/1861
. . . .
Transmission gratings
Collapse
G01J 2003/1866
. . .
Monochromator for three or more wavelengths
G01J 2003/1871
. . . .
Duochromator
G01J 2003/1876
. . . .
Polychromator
G01J 2003/188
. . .
Constant deviation
G01J 2003/1885
. . .
Holder for interchangeable gratings, e.g. at different ranges of wavelengths
Collapse
G01J 2003/26
. .
using multiple reflection, e.g. Fabry-Perot interferometer, variable interference filters
G01J 2003/262
. . .
Double pass; Multiple pass
G01J 2003/265
. . .
Read out, e.g. polychromator
G01J 2003/267
. . .
of the SISAM type
Collapse
G01J 2003/28
.
Investigating the spectrum (using colour filters G01J 3/51)
Collapse
G01J 2003/2803
. .
{
using photoelectric array detector
}
Collapse
G01J 2003/2806
. . .
Array and filter array
G01J 2003/2809
. . . .
Array and correcting filter
G01J 2003/2813
. . .
2D-array
G01J 2003/2816
. . .
Semiconductor laminate layer
G01J 2003/282
. . .
Modified CCD or like
Collapse
G01J 2003/2823
. .
{
Imaging spectrometer
}
G01J 2003/2826
. . .
Multispectral imaging, e.g. filter imaging
Collapse
G01J 2003/283
. .
computer-interfaced
G01J 2003/2833
. . .
and memorised spectra collection
G01J 2003/2836
. . .
Programming unit, i.e. source and date processing
G01J 2003/284
. . .
Spectral construction
G01J 2003/2843
. . .
Processing for eliminating interfering spectra
Collapse
G01J 2003/2846
. .
{
using modulation grid; Grid spectrometers
}
G01J 2003/285
. . .
Hadamard transformation
Collapse
G01J 2003/2853
. .
Averaging successive scans or readings
G01J 2003/2856
. . .
and calculation of standard deviation
Collapse
G01J 2003/2859
. .
Peak detecting in spectrum
G01J 2003/2863
. . .
and calculating peak area
Collapse
G01J 2003/2866
. .
Markers; Calibrating of scan
G01J 2003/2869
. . .
Background correcting
G01J 2003/2873
. . .
Storing reference spectrum
G01J 2003/2876
. . .
Correcting linearity of signal
G01J 2003/2879
. . .
Calibrating scan, e.g. Fabry Perot interferometer
G01J 2003/2883
. . .
Correcting overlapping
G01J 2003/2886
. .
Investigating periodic spectrum
Collapse
G01J 2003/2889
. .
{
Rapid scan spectrometers; Time resolved spectrometry
}
G01J 2003/2893
. . .
with rotating grating
G01J 2003/2896
. .
Vidicon, image intensifier tube
Collapse
G01J 2003/30
. .
Measuring the intensity of spectral line directly on the spectrum itself (G01J 3/42, G01J 3/44 take precedence)
Collapse
G01J 2003/32
. . .
Investigating bands of a spectrum in sequence by a single detector
G01J 2003/323
. . . .
Comparing line:background
G01J 2003/326
. . . .
Scanning mask, plate, chopper, e.g. small spectrum interval
Collapse
G01J 2003/42
. .
Absorption spectrometry; Double beam spectrometry; Flicker spectrometry; Reflection spectrometry (beam switching arrangements G01J 3/08)
G01J 2003/421
. . .
Single beam
G01J 2003/423
. . .
Spectral arrangements using lasers, e.g. tunable
G01J 2003/425
. . .
Reflectance
Collapse
G01J 2003/427
. . .
Dual wavelengths spectrometry
G01J 2003/4275
. . . .
Polarised dual wavelength spectrometry
Collapse
G01J 2003/433
. . .
Modulation spectrometry; Derivative spectrometry
G01J 2003/4332
. . . .
frequence-modulated
G01J 2003/4334
. . . .
by modulation of source, e.g. current modulation
G01J 2003/4336
. . . .
by magnetic modulation, e.g. Zeeman effect
Collapse
G01J 2003/44
. .
Raman spectrometry; Scattering spectrometry;
{
Fluorescence spectrometry
}
Collapse
G01J 2003/4412
. . .
{
Scattering spectrometry (particle sizing by light scattering G01N 15/0205; optical velocimetry of particles G01P5/00D)
}
G01J 2003/4418
. . . .
Power spectrum
G01J 2003/4424
. . .
Fluorescence correction for Raman spectrometry
Collapse
G01J 2003/443
. .
Emission spectrometry
G01J 2003/4435
. . .
Measuring ratio of two lines, e.g. internal standard
Collapse
G01J 2003/45
. .
Interferometric spectrometry
G01J 2003/451
. . .
Dispersive interferometric spectrometry
G01J 2003/452
. . .
with recording of image of spectral transformation, e.g. hologram
Collapse
G01J 2003/453
. . .
by correlation of the amplitudes
G01J 2003/4534
. . . .
Interferometer on illuminating side
G01J 2003/4538
. . . .
Special processing
Collapse
G01J 2003/46
.
Measurement of colour; Colour measuring devices, e.g. colorimeters (measuring colour temperature G01J 5/60)
G01J 2003/466
. .
Coded colour; Recognition of predetermined colour; Determining proximity to predetermined colour
G01J 2003/467
. .
Colour computing
G01J 2003/468
. .
of objects containing fluorescent agent
Collapse
G01J 2003/50
. .
using electric radiation detectors
G01J 2003/503
. . .
Densitometric colour measurements
G01J 2003/507
. . .
the detectors being physically selective
Collapse
G01J 2003/51
. . .
using colour filters
Collapse
G01J 2003/513
. . . .
{
having fixed filter-detector pairs
}
G01J 2003/516
. . . . .
with several stacked filters or stacked filter-detector pairs
Collapse
G01J 2004/00
Measuring polarisation of light (investigating or analysing materials by measuring rotation of plane of polarised light G01N 21/21)
Collapse
G01J 2004/001
.
Devices
Collapse
G01J 2004/002
. .
Selecting polarisation direction
G01J 2004/004
. . .
sequential, i.e. time-divided
G01J 2004/005
. . .
simultaneous, i.e. space-divided
G01J 2004/007
. . .
Mechanical mounting
G01J 2004/008
.
Polarisation rate
Collapse
G01J 2005/00
Radiation pyrometry (photometry in general G01J 1/00; spectrometry in general G01J 3/00)
{
measuring temperature in general, i.e. with a contacting sensor G01K; calorimetry of radiation beams G01K 17/00; direction finders for radiant sources G01S; intrusion detection by radiation G08B
}
Collapse
G01J 2005/0022
.
{
for sensing the radiation of moving bodies
}
G01J 2005/0029
. .
Sheet
G01J 2005/0033
. .
Wheel
Collapse
G01J 2005/0048
.
Calibrating; Correcting
G01J 2005/0051
. .
Methods for correcting for emissivity
G01J 2005/0055
. .
Atmospheric correction
G01J 2005/0059
. .
Correcting for reflection of the emitter radiation
G01J 2005/0062
. .
Linearising circuits
G01J 2005/0074
.
having separate detection of emissivity
G01J 2005/0077
.
Imaging
Collapse
G01J 2005/0081
.
Thermography
G01J 2005/0085
. .
Temperature profile
G01J 2005/0092
.
Temperature by averaging, e.g. by scan (scan intended for space- resolved determination G01J 2005/0081)
Collapse
G01J 2005/02
.
Details
Collapse
G01J 2005/06
. .
Arrangements for eliminating effects of disturbing radiation
Collapse
G01J 2005/061
. . .
{
using cooling or thermostating of parts of the apparatus (cooling techniques in general F17C, F25J)
}
G01J 2005/062
. . . .
Peltier
G01J 2005/063
. . . .
Heating; Thermostating
G01J 2005/065
. . .
by shielding
G01J 2005/066
. . .
Differential arrangement, i.e. sensitive/not sensitive
Collapse
G01J 2005/067
. . .
Compensating for environment parameters
G01J 2005/068
. . . .
Ambient temperature sensor; Housing temperature sensor
Collapse
G01J 2005/10
.
using electric radiation detectors
G01J 2005/103
. .
Absorbing heated plate or film and temperature detector
G01J 2005/106
. .
Arrays
Collapse
G01J 2005/12
. .
using thermoelectric elements, e.g. thermocouples (thermoelectric elements per se H01L 35/00, H01L 37/00)
G01J 2005/123
. . .
Thermoelectric array
G01J 2005/126
. . .
Thermoelectric black plate and thermocouple
Collapse
G01J 2005/20
. .
using resistors, thermistors, or semi-conductors sensitive to radiation
Collapse
G01J 2005/202
. . .
Arrays
G01J 2005/204
. . . .
prepared by semiconductor processing, e.g. VLSI
G01J 2005/206
. . .
on foils
G01J 2005/208
. . .
superconductive
Collapse
G01J 2005/28
. .
using photo-emissive, photo-conductive, or photo-voltaic cells
Collapse
G01J 2005/283
. . .
Array
G01J 2005/286
. . . .
Arrangement of conductor therefor
Collapse
G01J 2005/34
. .
using capacitors
{
e.g. pyroelectric elements
}
G01J 2005/345
. . .
Arrays
Collapse
G01J 2005/38
.
using extension or expansion of solids or fluids
Collapse
G01J 2005/42
. .
using Golay cells
G01J 2005/425
. . .
Micro-array
Collapse
G01J 2005/50
.
using techniques specified in the subgroups below
Collapse
G01J 2005/52
. .
using comparison with reference sources, e.g. disappearing-filament pyrometer
G01J 2005/526
. . .
Periodic insertion of emissive surface
G01J 2005/528
. . .
Periodic comparison
Collapse
G01J 2005/58
. .
using absorption; using polarisation; using extinction effect
G01J 2005/583
. . .
Interferences, i.e. fringe variation with temperature
G01J 2005/586
. . .
Polarisation
Collapse
G01J 2005/60
. .
using determination of colour temperature
{
Pyrometry using two wavelengths filtering; using selective, monochromatic or bandpass filtering; using spectral scanning
}
Collapse
G01J 2005/602
. . .
{
using selective, monochromatic or bandpass filtering
}
G01J 2005/604
. . . .
bandpass filtered
G01J 2005/607
. . .
on two separate detectors
G01J 2005/608
. . .
Colour temperature of lamps, soruces or the like
Collapse
G01J 2005/62
. .
using means for chopping the light
{
Compensation for background radiation of chopper element
}
G01J 2005/623
. . .
Compensating radiation of chopper
G01J 2005/626
. . .
Electrooptic chopper
Collapse
G01J 2009/00
Measuring optical phase difference (devices or arrangements for controlling the phase of light beams G02F 1/01); Determining degree of coherence; Measuring optical wavelength (spectrometry G01J 3/00)
G01J 2009/002
.
Wavefront phase distribution
G01J 2009/004
.
Mode pattern
Collapse
G01J 2009/006
.
using pulses for physical measurements
G01J 2009/008
. .
using decay time in cavity
Collapse
G01J 2009/02
.
by interferometric methods (using interferometers for measuring optically the linear dimensions of objects G01B 9/02)
G01J 2009/0203
. .
Phased array of beams
G01J 2009/0207
. .
Double frequency, e.g. Zeeman
G01J 2009/0211
. .
for measuring coherence
Collapse
G01J 2009/0215
. .
{
by shearing interferometric methods
}
G01J 2009/0219
. . .
using two or more gratings
G01J 2009/0223
. .
Common path interferometry; Point diffraction interferometry
Collapse
G01J 2009/0226
. .
Fibres
G01J 2009/023
. . .
of the integrated optical type
Collapse
G01J 2009/0234
. .
Measurement of the fringe pattern
G01J 2009/0238
. . .
the pattern being processed optically, e.g. by Fourier transformation
G01J 2009/0242
. .
Compensator
Collapse
G01J 2009/0249
. .
with modulation
G01J 2009/0253
. . .
of wavelength
G01J 2009/0257
. .
multiple, e.g. Fabry Perot interferometer
Collapse
G01J 2009/0261
. .
polarised
G01J 2009/0265
. . .
with phase modulation
G01J 2009/0269
. .
Microscope type
G01J 2009/0273
. .
Ring interferometer
G01J 2009/0276
. .
Stellar interferometer, e.g. Sagnac
Collapse
G01J 2009/028
. .
Types
G01J 2009/0284
. . .
Michelson
G01J 2009/0288
. . .
Machzehnder
G01J 2009/0292
. . .
Fizeau; Wedge
G01J 2009/0296
. . .
achromatic
Collapse
G01J 2011/00
Measuring the characteristics of individual optical pulses or of optical pulse trains
G01J 2011/005
.
Streak cameras
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Last Modified: 10/10/2013