Manual of U.S. Patent Classification
as of June 30, 2000

Class
359
OPTICS: SYSTEMS (INCLUDING COMMUNICATION) AND ELEMENTS

Class definitions may be accessed by clicking on the class title, above.
Subclass definitions may be accessed by clicking on the subclass number, below.

Patents classified in a subclass may be accessed by clicking on the " " icon following the subclass number, below.

( please note that links to definitions and classified patents may not be available for some classes and subclasses )

For search strategies, please refer to the Classification Index Explanation of Data web page.

Subclass		Title
ClassTitle		===> OPTICS: SYSTEMS (INCLUDING COMMUNICATION) AND ELEMENTS
1		HOLOGRAPHIC SYSTEM OR ELEMENT
2		. Authentication
3		. Having particular recording medium
4		. . Recyclable
5		. . . Magnetic material
6		. . . Sandwich having photoconductor
7		. . . Crystalline material
8		. . Having nonplanar recording medium surface
9		. For synthetically generating a hologram
10		. Using modulated or plural reference beams
11		. . Spatial, phase or amplitude modulation
12		. Copying by holographic means
13		. Head up display
14		. . Holograph on curved substrate
15		. Using a hologram as an optical element
16		. . With aberration correction
17		. . Scanner
18		. . . Flat rotating disk
19		. . Lens
20		. . . Multiple point hologram (e.g., fly-eye lens, etc.)
21		. Having defined page composer
22		. For producing or reconstructing images from multiple holograms (e.g., color, etc.)
23		. . Holographic stereogram
24		. . Superimposed holograms only
25		. . Discrete hologram only
26		. . . Sequential frames on moving film
27		. Having particular laser source
28		. Having multiple object beam or diffuse object illumination
29		. Fourier transform holography
30		. Having optical element between object and recording medium
31		. . Focused image holography
32		. For reconstructing image
33		. . Real image
34		. With optical waveguide
35		. Hardware for producing a hologram
107		OPTICAL COMPUTING WITHOUT DIFFRACTION
108		. Logic gate
109		OPTICAL COMMUNICATION
110		. Diagnostic testing of optical communication
111		. Interference signal transmission or elimination (e.g., jamming or antijamming)
112		. Eavesdropping
113		. Duplex
114		. . Wavelength division
115		. Multiplex
116		. . Mode
117		. . Spatial or switching
118		. . Optical local area network (LAN)
119		. . . Loop
120		. . . Active star
121		. . . Passive star
122		. . Polarization
123		. . Time and frequency division
124		. . Wavelength division/frequency division (includes scattering, e.g., Raman, Brillouin, etc.)
125		. . . Subscriber system
126		. . . . Optical source at only one station
127		. . . By optical coupling
128		. . . . Switch
129		. . . . Prism
130		. . . . Grating
131		. . . . Lens
132		. . . Single source, electrically controlled
133		. . . Different sources
134		. . . . With pump
135		. . Time division
136		. . . Multiple access (e.g., CSMA, CDMA)
137		. . . Subscriber system
138		. . . By specific optical element
139		. . . . Optical switch
140		. . . With delay
141		. Underwater
142		. Remote control
143		. . Bidirectional (i.e., monitoring or acknowledge)
144		. . In industrial environment (e.g., robot control)
145		. . With radio link
146		. . With television or radio system
147		. . Switching
148		. . Plural functions
149		. Photophone
150		. . Transducer, per se
151		. . . With optical fiber or waveguide
152		. Optical transceiver
153		. . Including compensation
154		. Transmitter and receiver system
155		. . Presence detection
156		. . With polarization
157		. . One transmitter, plural receivers
158		. . With synchronization
159		. . With alignment between transmitter and receiver
160		. . With pumping
161		. . With compensation
162		. . With electrical oscillator
163		. . With optical circuit board
164		. . Plural stations
165		. . . Address directing connections
166		. . . Unidirectional or loopback
167		. . . Central or master station
168		. . Passive system
169		. . . Retroreflection
170		. . Retroreflection
171		. . Received signal supplies power distribution to diverse devices
172		. . Satellite communications
173		. . Including optical waveguide
174		. Optical repeater system
175		. . Demodulating
176		. . Regenerative
177		. . . Monitoring
178		. . Star
179		. . Including optical waveguide
180		. Transmitter
181		. . With particular modulation
182		. . . Frequency modulation
183		. . . Phase modulation
184		. . . Pulse modulation
185		. . . . Pulse-code
186		. . . . Pulse time
187		. . With feedback
188		. . Including optical waveguide
189		. Receiver
190		. . Homodyne
191		. . Heterodyne
192		. . . With polarization
193		. . With optical element (e.g., lens, mirror, etc.)
194		. . Automatic gain control
195		. . With optical waveguide
196		DEFLECTION USING A MOVING ELEMENT OR MEDIUM (OFFSETTING OR CHANGING AT LEAST A PORTION OF THE BEAM)
197		. Using a periodically moving element (periodic change of optically reflecting, refracting or diffracting element)
198		. . Particular mount or driver for element
199		. . . Particular oscillating driver
200		. . . Bearing or shaft for rotary driver
201		. . Plural moving scanning elements
202		. . . X-Y scanner
203		. . . Having a common axis of rotation
204		. . Utilizing plural light beams
205		. . Having particular focusing element to receive scanned light
206		. . . High distortion lens (e.g., fO lens, etc.)
207		. . . Anamorphic element
208		. . . Concave reflector
209		. . Including transmissive type moving element
210		. . . Having moving lens
211		. . . Having moving prism
212		. . Including reflective type moving element
213		. . . Having oscillating element
214		. . . . Single plane mirror element
215		. . . . . With imaging lens
216		. . . Having multifaceted rotating element
217		. . . . With facets parallel to rotation axis
218		. . . . . Having six, seven, or eight facets
219		. . . . . Having five or fewer facets
220		. . . Having planar rotating reflector with transverse rotation axis
221		. . . Having planar rotating reflector with rotation axis in its plane
222		. By frustrated total internal reflection
223		. By moving a reflective element
224		. . Reflective element moved by deformable support
225		. . Pivoting or moving in circular arc
226		. . Rotating
227		LIGHT CONTROL BY OPAQUE ELEMENT OR MEDIUM MOVABLE IN OR THROUGH LIGHT PATH
228		. Fluid
229		. With glare or flicker elimination
230		. Electro-mechanical
231		. . String or ribbon type
232		. Slit type
233		. With relative motion of two apertured elements
234		. With rotating or pivoting element (e.g., scanning discs)
235		. . Continuously rotating apertured element
236		. . Element rotates about axis perpendicular to light path
237		OPTICAL MODULATOR
238		. Light wave temporal modulation (e.g., frequency, amplitude, etc.)
239		. . Modulator output feedback to modulator
240		. . Changing bulk optical parameter
241		. . . By actinic radiation (e.g., photochromic)
242		. . . . Display device
243		. . . . Bistable device
244		. . . . Opto-optical device
245		. . . Electro-optic
246		. . . . Modulation of polarized light via modulating input signal
247		. . . . . Using reflective or cavity structure
248		. . . . . . Semiconductor
249		. . . . . Compensation technique
250		. . . . . Using plural mediums
251		. . . . . With particular direction of the field in relation to the medium, beam direction or polarization
252		. . . . . With particular medium or state of the medium
253		. . . . . . Liquid medium
254		. . . . . With particular electrode structure or arrangement, or medium mounting structure or arrangement
255		. . . . . With particular field
256		. . . . . With birefringent element
257		. . . . . Pockel`s cell
258		. . . . . Kerr cell
259		. . . . Plural modulation cells
260		. . . . Etalon structure
261		. . . . Multiple reflections within cell
262		. . . . Excitation by electron beam
263		. . . . By reflection
264		. . . . Pulse modulation
265		. . . . Electrochromic
266		. . . . . Particular nonplanar electrode arrangement
267		. . . . . Reflection-type (e.g., display device)
268		. . . . . . Complementary device
269		. . . . . . Particular counter electrode
270		. . . . . . Particular electrolyte layer
271		. . . . . . Particular planar electrode pattern
272		. . . . . . Liquid cell
273		. . . . . . Particular electrochromic layer structure
274		. . . . . . Diverse layer
275		. . . . . Transmission-type (e.g., windows)
276		. . . . Amplitude modulation
277		. . . . . Within display element
278		. . . . Frequency modulation
279		. . . . Phase modulation
280		. . . Magneto-optic
281		. . . . Modulation of polarized light via modulating input signal
282		. . . . . Using layered structure or plural mediums
283		. . . . . With particular direction of the field in relation to the medium, beam direction or polarization
284		. . . . Amplitude modulation
285		. . . Acousto-optic
286		. . . . Amplitude modulation
287		. . . . Frequency modulation
288		. . . Thermo-optic
289		. . . . Amplitude modulation
290		. . By changing physical characteristics (e.g., shape, size or contours) of an optical element
291		. . . Shape or contour of light control surface altered
292		. . . . Light control surface forms image on projected light beam
293		. . . . . Electron beam causes surface alteration
294		. . . . Using photoconductive layer
295		. . . . Having multiple electrodes
296		. . . Changing position or orientation of suspended particles
297		. . . Light control surface formed or destroyed
298		. Light wave directional modulation (e.g., deflection or scanning is representative of the modulating signal)
299		. . Opto-optical device
300		. . Phase conjugate
301		. . Acting on polarized light
302		. . . Using reflecting or cavity structure
303		. . . Using more than one polarization (e.g., digital)
304		. . . Using single polarization
305		. . Acousto-optic
306		. . . Correlation or convolution
307		. . . Utilizing optical feedback
308		. . . Filter
309		. . . Acting on polychromatic light
310		. . . Plural cell array
311		. . . Plural transducers on single cell
312		. . . Single transducer generating composite plural frequency acoustic wave
313		. . . Particular cell shape
314		. . . Particular cell orientation
315		. . Electro-optic
316		. . . Plural modulation cells
317		. . . Multiple reflections within cell
318		. . . By reflection
319		. . . Focusing
320		. . . Switching
321		. Having particular chemical composition or structure
322		. . Electro-optic crystal material
323		. . . PLZT material
324		. . Magneto-optic crystal material
325		OPTICAL DEMODULATOR
326		OPTICAL FREQUENCY CONVERTER
327		. Raman type
328		. Harmonic generator
329		. . Third harmonic
330		. Parametric oscillator
331		. Optical laser acoustic delay line type
332		. Dielectric optical waveguide type
333		OPTICAL AMPLIFIER
334		. Raman or Brillouin process
335		. Free electron
336		. Bistable
337		. Correction of deleterious effects
338		. . Using phase conjugation
339		. . Using saturable or spatial filter
340		. Mode locked
341		. Optical fiber
342		. Particular active medium (e.g., crystal, plasma, fluid, etc.)
343		. . Glass (amorphous)
344		. . Semiconductor
345		. Particular pumping type (e.g., electrical, optical, nuclear, magnetic, etc.)
346		. Particular resonator cavity (e.g., scanning, confocal or folded mirrors, etc.)
347		. Multiple pass
348		. . Regenerative
349		. Beam combination or separation
350		HAVING SIGNIFICANT INFRARED OR ULTRAVIOLET PROPERTY
351		. Having folded optical path
352		. Having polarizing element
353		. Including alternative optical path or optical element (e.g., day-night, hi-low magnification)
354		. Including continuously variable magnification or focal length (zoom lens, adjustable lens)
355		. Lens, lens system or component
356		. . Infrared lens
357		. . . Having four or more components
358		. Fluid filter or fluid mirror
359		. Multilayer filter or multilayer reflector
360		. . Having metal layer
361		. Having ultraviolet absorbing or shielding property
362		COMPOUND LENS SYSTEM
363		. With image recorder
364		. With curved reflective imaging element
365		. . Two or more in a series
366		. . . Concave, convex combination
367		. Right angle inspector
368		. Microscope
369		. . With viewed screen
370		. . Interference
371		. . . Using polarized light
372		. . With plural optical axes
373		. . . Side-by-side fields
374		. . . Plural oculars
375		. . . . Binocular
376		. . . . . Stereoscopic
377		. . . . . . With single or parallel objectives
378		. . . . . . . For viewing stereo pairs
379		. . Spacing of optical elements axially adjustable
380		. . . Variable magnification
381		. . Imaging elements movable in and out of optical axis
382		. . Entire microscope adjustable along optical axis
383		. . . Focus adjustment
384		. . With rotatable adjustment
385		. . Illuminator
386		. . . Using polarized light
387		. . . With annular lighting structure
388		. . . With optical switching means
389		. . . With illumination and viewing paths coaxial at the image field
390		. . . With illuminator support
391		. . Stage or slide carrier
392		. . . Adjustable along optical axis
393		. . . With plural transverse movements
394		. . . With turntable
395		. . . With temperature control
396		. . Transparent slide
397		. . . Reference lines or grids
398		. . . Specimen cavity or chamber
399		. Telescope
400		. . With viewed screen
401		. . With image anti-rotation
402		. . Periscope
403		. . . With plural optical axes
404		. . . . Binocular
405		. . . With mechanical adjustment
406		. . . . Extensible structure
407		. . Binocular
408		. . . Foldable or collapsible
409		. . . Body supported or with handle
410		. . . . With focusing means
411		. . . . With adjustable interocular distance
412		. . . With adjustable interocular distance
413		. . . . Oculars swing about central axis
414		. . . . . Spacing of optical elements axially adjustable
415		. . . . Oculars rotate about separate axes
416		. . . . . Spacing of optical elements axially adjustable
417		. . . . Spacing of optical elements axially adjustable
418		. . . Spacing of optical elements axially adjustable
419		. . With plural optical axes
420		. . . Plural magnification in same viewing field
421		. . Selectable magnification
422		. . Variable magnification
423		. . With relay
424		. . . With reticle
425		. . Focusing or relatively sliding barrels
426		. . . Internal focusing
427		. . . With reticle
428		. . With reticle
429		. . With line of sight adjustment
430		. . . Equatorial mount
431		. . With prism or U-shaped optical path
432		. Variable magnification
433		. With tilted lens or tilted image plane
434		. With relay
435		. . Repetitious lens structure
436		SCALE OR INDICIA READING
437		. Polarizer
438		. Prism
439		. Mirror
440		. Lens
441		. . Movable or adjustable
442		. . . Along scale or indicia
443		PROJECTION SCREEN
444		. With sound producer
445		. Acoustical
446		. Moving during projection
447		. Tracing (e.g., camera lucida, etc.)
448		. With lens (e.g., camera obscura, etc.)
449		. With reflector or additional screen
450		. Border, mask, shade, or curtain
451		. Curved
452		. Embedded particles
453		. . Rear projection screen
454		. Unitary sheet comprising plural refracting areas
455		. . Lenticular
456		. . . Rear projection screen
457		. . . . With Fresnel lens
458		. . . Stereoscopic imaging or three dimensional imaging
459		. Unitary sheet comprising plural reflecting areas
460		. Rear projection screen
461		. Roll up screen
462		STEREOSCOPIC
463		. Having record with lenticular surface
464		. With right and left channel discriminator (e.g., polarized or colored light)
465		. . Using polarized light
466		. Stereo-viewers
467		. . View changers
468		. . . Picture moves linearly past viewing aperture
469		. . . . Using film strips
470		. . Compensates for camera position (e.g., plotting or mapping type)
471		. . Reflected line of sight
472		. . . Pictures offset, transposed or have respective right or left sides adjacent
473		. . Ocular spacing or angle between ocular axes adjustable
474		. . Collapsible
475		. . Having illumination
476		. . Ocular to picture distance adjustable
477		. . Supporting, mounting, enclosing or light shielding structure
478		RELIEF ILLUSION
479		. Reflected line of sight
480		BINOCULAR DEVICES
481		. Binocular loupe type
482		. Reflected line of sight
483		POLARIZATION WITHOUT MODULATION
484		. Time invariant electric, magnetic, or electromagnetic field responsive (e.g., electro-optical, magneto-optical)
485		. Light polarization without any external input
486		. . By grid or dipoles
487		. . By reflection or refraction (e.g., Brewster angle)
488		. . . With particular medium
489		. . Polarization (direction or magnitude) varies over surface of the medium (e.g., vectograph)
490		. . By dichroic medium
491		. . . Stain or dye
492		. . . Oriented particles
493		. . Glare prevention by discriminating against polarized light
494		. . By birefringent element
495		. . . For beam deflection or splitting
496		. . . Prisms
497		. . . Using plural elements
498		. . . . Frequency filter or interference effects
499		. . . . Using compensation techniques
500		. . . With particular material or mounting structure
501		. . By relatively adjustable superimposed or in series polarizers
502		. . With color filter
503		EXTENDED SPACING STRUCTURE FOR OPTICAL ELEMENTS
504		. Wide angle (e.g., door peep)
505		. With screen or reticle in real image plane
506		. Extension of tubular element adjustable
507		PROTECTION FROM MOISTURE OR FOREIGN PARTICLE
508		. Optical element rotates
509		. Fluid directed across optical element
510		. Microscope drape
511		. Cap or cover
512		. Humidity or temperature control
513		. Sealing
514		. . Mirror, prism or signal reflector
515		SIGNAL REFLECTOR
516		. Body carried
517		. . Worn by hand or wrist
518		. . Permanently fixed to clothing
519		. . Worn over clothing
520		. Moving
521		. . Pedal mounted
522		. . Rotating
523		. . . Spoke mounted
524		. . . Tire, wheel, valve stem, hub cap, or axle mounted
525		. . . Wind driven
526		. . Vibration
527		. For a signal source remote from observer
528		. Light transmitting from source behind a reflector
529		. 3-Corner retroreflective (i.e., cube corner, trihedral, or triple reflector type)
530		. . Unitary plate or sheet comprising plural reflecting elements
531		. . . Mounted on roadway
532		. . . Mounted adjacent roadway
533		. . . Mounted on vehicle
534		. Including a curved refracting surface
535		. . Within individual indentations
536		. . Minute transparent spheres
537		. . . Directional reflection (e.g., prevent viewing unless critical angle of light is used)
538		. . . On flexible substrate (e.g., flexible sheeting, bumper sticker, etc.)
539		. . . Mixture in liquid binder (e.g., paint, resin)
540		. . . Placed on top of binder (e.g., resin, asphalt, glue, etc.)
541		. . . . With single transparent coating between spheres and atmosphere
542		. . Plural refracting elements formed as a unitary mass
543		. . With individual reflector element mount
544		. . . Including a snap, spring clip, or spring retainer
545		. . . Including a threaded member
546		. Discrete reflecting elements formed as a unitary mass
547		. . Mounted on or adjacent roadway
548		. . Mounted on vehicle
549		. Rigidly mounted on vehicle
550		. . Bicycle or motorcycle
551		. Mounted on roadway
552		. Mounted adjacent roadway
553		. Emergency or temporary reflectors (i.e., portable self standing)
554		IMAGE STABILIZATION
555		. By movable reflective structure
556		. . Having plural reflecting surfaces
557		. By movable refractive structure
558		DIFFRACTION
559		. Using Fourier transform spatial filtering
560		. . For convolution (cross-correlation)
561		. . For correlation
562		. . For changing zeroth order intensity
563		. . With diffraction grating
564		. . With photographic media
565		. From zone plate
566		. From grating
567		. . For ornamental effect or display
568		. . For diffractive subtractive filtering
569		. . Including particular grating characteristic
570		. . . Nonplanar grating substrate (e.g., concave)
571		. . . Echelette or blazed grating
572		. . . Reflection grating (e.g., retrodirective)
573		. . . Variable grating
574		. . . With curved or geometrically shaped corrugation
575		. . . With nonuniform corrugation width, spacing, or depth
576		. . . Laminated or layered
577		LIGHT INTERFERENCE
578		. Electrically or mechanically variable (e.g., tunable, adjustable)
579		. . By nonmovable driving element (e.g., piezoelectric, magnetostrictive)
580		. Produced by coating or lamina
581		. . By transmissive coating on lens
582		. . Layer having specified nonoptical property
583		. . Beam splitter or combiner
584		. . Reflector
585		. . Including metal or conductive layer
586		. . Layers having specified index of refraction
587		. . . Plural layer groups lateral in parallel light paths
588		. . . Filter having four or more layers
589		. . Selective wavelength transmission or reflection
590		. . . Having another filter
591		BUILDING INTERIOR ILLUMINATION WITH REFLECTED, REFRACTED OR PREDETERMINED ANGLE OF ENTRANCE OF OUTSIDE LIGHT
592		. Unitary light transmitting member comprising plural reflecting or refracting elements
593		. . Plural members in series
594		. . Elements on two sides of member
595		. . With internal reflections
596		. Slats or strips
597		. With reflection
598		. . Internal reflection in single optical element
599		DIFFUSING OF INCIDENT LIGHT
600		BARREL END EYE GUARD (E.G., SHIELD OR CUSHION, ETC.)
601		GLARE OR UNWANTED LIGHT REDUCTION
602		. With mirror (e.g., mirror with glare screen, etc.)
603		. . Anti-glare mirror
604		. . . Adjustable
605		. . . . Plural reflecting surfaces
606		. . . . . Prismoidal
607		. . . . . Reversible
608		. . . . Translucent or other semitransmitting panel selectively positioned in front of mirror
609		. Display window
610		. With blind for nonviewing eye
611		. Barrel end or lens mount shade
612		. . Collapsible or foldable
613		. Directional or angular discrimination
614		. With absorption means
615		LIGHT DISPERSION
616		KALEIDOSCOPE
617		. Including particles loosely housed for agitation
618		SINGLE CHANNEL SIMULTANEOUSLY TO OR FROM PLURAL CHANNELS (E.G., LIGHT DIVIDING, COMBINING, OR PLURAL IMAGE FORMING, ETC.)
619		. By surface composed of lenticular elements
620		. . Having particular composition
621		. . Plural lenticular plates
622		. . . Serially disposed along optic axis
623		. . . . Cylindrical lenslets
624		. . . . . Having crossed axes
625		. . Focusing or defocusing by noncurved surfaces (e.g., prismatic, etc.)
626		. . Particular focusing or defocusing characteristic
627		. . Reflective
628		. . Noncircular cross section
629		. By partial reflection at beam splitting or combining surface
630		. . Superimposing visual information on observer`s field of view (e.g., head-up arrangement, etc.)
631		. . . Including curved reflector
632		. . . Rotatable heads-up device or combiner
633		. . . With additional reflector (e.g., serial reflections, etc.)
634		. . Wavelength selective (e.g., dichroic mirror, etc.)
635		. . Drawing or plotting aid
636		. . Including full reflection and transmission of a beam at different portions of a beam divider
637		. . With path length or aberration correcting element
638		. . With partial reflection at a surface of a prism
639		. By refraction at beam splitting or combining surface
640		. . Including prismatic element
641		COLLIMATING OF LIGHT BEAM
642		LENS
643		. Eyepiece
644		. . Having four components
645		. . Having three components
646		. . Having two components
647		. . Having one component
648		. With field curvature shaping
649		. . Projection type
650		. . . Having four components
651		. . . Having less than four components
652		. With graded refractive index
653		. . Having an axial gradient
654		. . Having a radial gradient
655		. . . In a variable media (e.g., gas, elastomer, etc.)
656		. Microscope objective
657		. . Having seven components
658		. . Having six components
659		. . Having five components
660		. . Having four components
661		. . Having less than four components
662		. High distortion lens (e.g., f0, etc.)
663		. Telecentric system
664		. Spherical
665		. Fluid
666		. . With variable magnification
667		. . With gas
668		. Anamorphic
669		. . With prism anamorphoser
670		. . Variable magnification anamorphoser
671		. . Having four or more components
672		. Selective magnification by exchanging or adding a lens component
673		. . To the front of a basic lens
674		. . To the middle of a basic lens
675		. . To the rear of a basic lens
676		. With variable magnification (e.g., zoom type )
677		. . Optically compensated
678		. . Prism lens type
679		. . With fixed conjugates
680		. . Reverse telephoto
681		. . . Having eight or nine components
682		. . . Having seven or less components
683		. . With mechanical compensation
684		. . . Other than first group moves for focusing (internal focus type)
685		. . . Nonlinear variator/compensator movements
686		. . . Four groups
687		. . . . + - + + Arrangement
688		. . . . + - - + Arrangement
689		. . . Three groups
690		. . . . + - + Arrangement
691		. . . Two groups
692		. . . . + - Arrangement
693		. . . With macro-type focusing
694		. . Adjusting mechanism
695		. . . Three or more movable lens groups
696		. . . Motor driven
697		. . . . Condition responsive
698		. . . . . Auto focusing
699		. . . Having cam device
700		. . . . Cam groove type
701		. . . . Cam ring type or zoom ring type
702		. . . With adjustment lock
703		. . . With specified mount
704		. . . . Having detail of barrel
705		. . . With macro type focusing
706		. . . . With specific ring means
707		. Diffusing
708		. Including a nonspherical surface
709		. . Conical
710		. . Cylindrical
711		. . Toroidal
712		. . Paraboloidal
713		. . Having six components
714		. . Having five components
715		. . Having four components
716		. . Having three components
717		. . Having two components
718		. . Having one component
719		. . . Objective for laser (e.g., optical disc, etc.)
720		. Asymmetric (e.g., prismatic or eccentric, etc.)
721		. Plural focal length
722		. Selective wavelength transmitting or blocking
723		. . With separate filter
724		. Annular zonal correcting
725		. Panoramic
726		. With reflecting element
727		. . Including concave or convex reflecting surface
728		. . . With aspheric surface (e.g., Schmidt lens, etc.)
729		. . . . With concave and convex reflectors in series
730		. . . Reflectors in series
731		. . . . With concave and convex reflectors in series
732		. . For producing a double pass
733		. . Multiple component lenses
734		. . . Four components
735		. . . Three components
736		. . . Two components
737		. With diverse refracting element
738		. With light limiting or controlling means
739		. . Diaphragm
740		. . . Between lens components
741		. With multipart element
742		. . Echelon (e.g., Fresnel lens, etc.)
743		. . . Having curvilinear lens
744		. Afocal (e.g., Galilean telescopes, etc.)
745		. Telephoto
746		. . With five components
747		. . With four components
748		. . With less than four components
749		. Reverse telephoto
750		. . With eight components
751		. . With seven components
752		. . With six components
753		. . With five or less components
754		. Multiple component lenses
755		. . Seven components
756		. . Six components
757		. . . First component positive
758		. . . . + - + + - + Arrangement
759		. . . . First two components positive
760		. . . . . + + - - + + Arrangement
761		. . . First component negative
762		. . . . First two components negative
763		. . Five components
764		. . . First component positive
765		. . . . + - - + + Arrangement
766		. . . . + - + - + Arrangement
767		. . . . First two components positive
768		. . . . . + + - - + Arrangement
769		. . . . . + + - + + Arrangement
770		. . . First component negative
771		. . Four components
772		. . . First component positive
773		. . . . + - + - Arrangement
774		. . . . + - + + Arrangement
775		. . . . + - - + Arrangement
776		. . . . . With multiple element component
777		. . . . . . Infinite radius
778		. . . . . . Having a biconvex single element component
779		. . . . + + - + Arrangement
780		. . . . + + + - Arrangement
781		. . . First component negative
782		. . . . - + + - Arrangement
783		. . . . - + + + Arrangement
784		. . Three components
785		. . . + - + Arrangement
786		. . . . With multiple element first component
787		. . . . With multiple element second component
788		. . . . With multiple element third component
789		. . . . With first component biconvex
790		. . . . With third component biconvex
791		. . . + + - Arrangement
792		. . . + + + Arrangement
793		. . Two components
794		. . . + + Arrangement
795		. . . + - Arrangement
796		. Single component with multiple elements
797		. . Three or more elements
798		. With viewed object or viewed field illumination
799		. . Illuminating beam coaxial with lens axis
800		. . Illumination through lens
801		. . With viewed object support
802		. . Magnifier
803		. . . Hand held
804		. With viewed object support
805		. . On lens supporting handle
806		. . Relatively movable informatory sheet and lens (e.g., reading machine, etc.)
807		. . Flat opaque document or picture
808		. With lens casing
809		. Combined with diverse art tool, instrument or machine
810		. . Operation viewed through lens
811		. With support
812		. . With additional handle
813		. . Lens movable in its plane
814		. . . Electromagnetic motive power
815		. . Body or apparel attached or carried
816		. . . Monocular loupe type
817		. . Foldable or collapsible
818		. . With clamp or grip
819		. . Lens mounts
820		. . . With temperature compensation or control
821		. . . Plural lenses in common carrier selectively operable (e.g., turret type, etc.)
822		. . . Adjustable
823		. . . . With axial adjustment (e.g., adjustable focus, etc.)
824		. . . . . Electromagnetic or piezoelectric drive
825		. . . . . Focusing ring
826		. . . . . Sliding barrels
827		. . . Detachably attached (e.g., plate, barrel, etc.)
828		. . . . Bayonet coupling
829		. . . With threads
830		. . . With ring
831		PRISM (INCLUDING MOUNT)
832		. Fluid filled
833		. With reflecting surface
834		. . Plural reflecting surfaces
835		. . . For binocular or porro-prism
836		. . . Roof or roof-angle
837		. With refracting surface
838		MIRROR
839		. With a transmitting property
840		. Back to back
841		. Retractable vehicle mirror
842		. Mounted on vehicle having handlebars (e.g., bicycle, motorcycle, etc.)
843		. Automatically adjustable in response to vehicle position, control, or indicator
844		. On adjustable diverse vehicle portion or accessory
845		. Fluid cooled mirror
846		. Including specified control or retention of the shape of a mirror surface
847		. . Membrane mirror in mechanical contact only at its edge
848		. . With structure to minimize internal mirror stress
849		. . Including a plurality of adjustable mirror supports
850		. Plural mirrors or reflecting surfaces
851		. . Composite or echelon mirrors or light concentrating array
852		. . . With a line focus
853		. . . Light concentrating (e.g., heliostat, etc.), concave, or paraboloidal structure
854		. . Identical side mirrors adjustable with respect to a central mirror
855		. . Identical adjacent mirrors identically supported
856		. . . With successive reflections
857		. . With successive reflections
858		. . . Including curved mirror surfaces in series
859		. . . . With concave and convex mirrors in series
860		. . . To view observer
861		. . . With three or more successive reflections
862		. . . Including an adjustable mirror
863		. . . . Including a curved mirror
864		. . Including adjacent plane and curved mirrors
865		. . Relatively adjustable
866		. . Wide angle segmented mirrors
867		. Concave cylindrical or providing a line focus
868		. With mirror surface of varied radius
869		. . Concave
870		. Fracture resistant (e.g., shatterproof, etc.)
871		. With support
872		. . Mirror movable relative to support
873		. . . With rotary to linear motion converting mirror adjustment
874		. . . . With rotation of mirror about perpendicular axes
875		. . . With a rigid handle extending to or near a mirror pivot
876		. . . With rotation of mirror about perpendicular axes
877		. . . With switch or motor controlling mirror movement
878		. . . . Fluid pressure actuated
879		. . . Body or apparel mirror support
880		. . . . Having support or apparel engaging head or neck
881		. . . With mirror supporting column or sliding adjustment
882		. . With handle
883		. . Laminated or layered mirror support
884		. With selective absorption or transparent overcoating
885		ABSORPTION FILTER
886		. Fluid
887		. Sequentially additive
888		. Neutral or graded density
889		. Movable in or out of optical path
890		. Superimposed or series
891		. Filters in optical parallel (e.g., colors side-by-side, etc.)
892		. With support or frame
893		SCREEN (E.G., HALFTONE SCREEN, ETC.)
894		OPTICAL APERTURE OR TUBE, OR TRANSPARENT CLOSURE
895		. Submerged object viewer
896		MISCELLANEOUS
		******************************
		CROSS-REFERENCE ART COLLECTIONS
		******************************
900		METHODS
901		ACOUSTIC HOLOGRAPHY
902		HOLOGRAPHIC INTERFEROMETER
903		WITH MAGNET

Information Products Division -- Contacts

Questions regarding this report should be directed to:

U.S. Patent and Trademark Office
Information Products Division
PK3- Suite 441
Washington, DC 20231

tel: (703) 306-2600
FAX: (703) 306-2737
email: oeip@uspto.gov

---

Last Modified: 6 October 2000