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CPC
COOPERATIVE PATENT CLASSIFICATION
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F21S
NON-PORTABLE LIGHTING DEVICES OR SYSTEMS THEREOF ( burners F23D )
NOTE
-
1. This subclass covers devices or systems intended for fixed installation, e.g. vehicle lighting, or for use at a permanent location, e.g. free-standing floor- or table-lamps.
2. This subclass does not cover devices or systems specially adapted for transportation, which are covered by subclass F21L.
3. Non-electric lighting devices or systems are classified in groups F21S 11/00 to F21S 15/00 only if a special adaptation related to the use of a non-electric light source is of interest.

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Guide Heading:
Electric lighting
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F21S 2/00
Systems of lighting devices, not provided for in main groups F21S 4/00 to F21S 10/00 or F21S 19/00 , e.g. of modular construction
F21S 2/005
.
{
of modular construction
}
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F21S 4/00
Lighting devices or systems using a string or strip of light sources
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F21S 4/001
.
{
using a string of light sources, i.e. lighting devices or systems where the light sources are supported by loose electric cables, e.g. Christmas tree lights
}
F21S 4/002
. .
{
the strings forming a grid, net or web structure
}
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F21S 4/003
.
{
using a strip of light sources, i.e. lighting devices or systems where the light sources are supported on a linear support
}
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F21S 4/005
. .
{
the lighting device being flexible or deformable, e.g. into a curved shape
}
F21S 4/006
. . .
{
the lighting device being a LED tape
}
F21S 4/007
. . .
{
the lighting device being a LED rope light
}
F21S 4/008
. .
{
the lighting device being rigid or comprising an elongated rigid housing, e.g. LED bars
}
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F21S 6/00
Lighting devices intended to be free-standing ( F21S 9/00 , F21S 10/00 ,
{
F21S 13/12
}
 take precedence )
{
lighting devices specially adapted to be transported from place to place, e.g. lighting devices carried on wheeled supports F21L; details of supports for lighting devices F21V 21/00
}
F21S 6/001
.
{
being candle-shaped ( with varying lighting effect of simulating flames F21S 10/04 ; string of light sources F21S 4/00 )
}
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F21S 6/002
.
{
Table lamps, e.g. for ambient lighting
}
F21S 6/003
. .
{
for task lighting, e.g. for reading or desk work, e.g. angle poise lamps
}
F21S 6/004
.
{
with a lamp housing in direct contact with the floor or ground
}
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F21S 6/005
.
{
with a lamp housing maintained at a distance from the floor or ground via a support, e.g. standing lamp for ambient lighting
}
F21S 6/006
. .
{
for direct lighting only, e.g. task lighting
}
F21S 6/007
. .
{
for indirect lighting only, e.g. torchiere with reflector bowl directed towards ceiling
}
F21S 6/008
. .
{
with a combination of direct and indirect lighting
}
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F21S 8/00
Lighting devices intended for fixed installation ( F21S 9/00 , F21S 10/00 take precedence; using a string or strip of light sources F21S 4/00 )
F21S 8/003
.
{
Searchlights, i.e. outdoor lighting device producing powerful beam of parallel rays, e.g. for military or attraction purposes ( searchlights mounted on a vehicle B60Q 1/24 )
}
F21S 8/006
.
{
Solar simulators, e.g. for testing photovoltaic panels
}
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F21S 8/02
.
of recess-mounted type, e.g. downlighters ( F21S 8/10 takes precedence;
{
details of recessed bases F21V 21/04
}
 )
F21S 8/022
. .
{
intended to be recessed in a floor or like ground surface, e.g. pavement or false floor
}
F21S 8/024
. .
{
intended to be recessed in a wall or like vertical structure, e.g. building facade
}
F21S 8/026
. .
{
intended to be recessed in a ceiling or like overhead structure, e.g. suspended ceiling
}
F21S 8/028
. .
{
being retractable, i.e. having two fixed positions, one recessed, e.g. in a wall, floor or ceiling, and one extended when in use
}
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F21S 8/03
.
{
of surface-mounted type ( F21S 8/02 , F21S 8/04 take precedence; details of wall or floor bases F21V 21/02 )
}
WARNING
-
Group F21S 8/03 does not correspond to former or future IPC groups. Correspondence CPC : IPC for this group is as following: - F21S 8/03 : F21S 8/00

F21S 8/031
. .
{
the device consisting essentially only of a light source holder with an exposed light source, e.g. a fluorescent tube
}
F21S 8/032
. .
{
the surface being a floor or like ground surface, e.g. pavement
}
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F21S 8/033
. .
{
the surface being a wall or like vertical structure, e.g. building facade
}
F21S 8/035
. . .
{
by means of plugging into a wall outlet, e.g. night light
}
F21S 8/036
. . .
{
by means of a rigid support, e.g. bracket or arm
}
F21S 8/037
. . .
{
for mounting in a corner, i.e. between adjacent walls or wall and ceiling
}
F21S 8/038
. .
{
intended to be mounted on a light track ( suspended from a light track F21S 8/066 ; details of supporting elements displaceable along a guiding element F21V 21/34 )
}
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F21S 8/04
.
intended only for mounting on a ceiling or the like overhead structures ( F21S 8/02 takes precedence;
{
details of ceiling bases F21V 21/03
}
 )
F21S 8/043
. .
{
mounted by means of a rigid support, e.g. bracket or arm
}
F21S 8/046
. .
{
having multiple lighting devices, e.g. connected to a common ceiling base
}
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F21S 8/06
. .
by suspension
F21S 8/061
. . .
{
with a non-rigid pendant, i.e. a cable, wire or chain
}
F21S 8/063
. . .
{
with a rigid pendant, i.e. a pipe or rod
}
F21S 8/065
. . .
{
multi-branched, e.g. a chandelier
}
F21S 8/066
. . .
{
from a light track ( details of supporting elements displaceable along a guiding element F21V 21/34 )
}
F21S 8/068
. . .
{
from a stretched wire
}
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F21S 8/08
.
with a standard
{
( F21S 6/00 takes precedence )
}
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F21S 8/081
. .
{
of low-built type, e.g. landscape light
}
F21S 8/083
. . .
{
of bollard type, i.e. with lighting fixture integrated into the standard or mounted on top of it and having substantially the same diameter
}
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F21S 8/085
. .
{
of high-built type, e.g. street light
}
F21S 8/086
. . .
{
with lighting device attached sideways of the standard, e.g. for roads and highways
}
F21S 8/088
. . .
{
with lighting device mounted on top of the standard, e.g. for pedestrian zones
}
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F21S 8/10
.
specially adapted for vehicles
WARNING
-
This group is no longer used for the classification of new documents as from January 1st, 2012. The backlog of this group is being continuously reclassified to F21S 48/00 and subgroups

F21S 8/12
. .
providing single shaped beams or asymmetric beams, e.g. for penetrating fog or for preventing glare
WARNING
-
This group is no longer used for the classification of new documents as from January 1st, 2012. The backlog of this group is being continuously reclassified to F21S 48/00 and subgroups

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F21S 9/00
Lighting devices with a built-in power supply ; Systems employing lighting devices with a built-in power supply
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F21S 9/02
.
the power supply being a battery or accumulator
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F21S 9/022
. .
{
Emergency lighting devices
}
F21S 9/024
. . .
{
using a supplementary light source for emergency lighting
}
F21S 9/026
. .
{
rechargeable by using wind power, e.g. using wind turbines
}
F21S 9/028
. .
{
rechargeable by using hydropower, e.g. using water powered turbines
}
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F21S 9/03
. .
rechargeable by exposure to light
F21S 9/032
. . .
{
the solar unit being separate from the lighting unit
}
F21S 9/035
. . .
{
the solar unit being integrated within the support for the lighting unit, e.g. within or on a pole
}
F21S 9/037
. . .
{
the solar unit and the lighting unit being located within or on the same housing
}
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F21S 9/04
.
the power supply being a generator
F21S 9/043
. .
{
driven by wind power, e.g. by wind turbines
}
F21S 9/046
. .
{
driven by hydropower, e.g. by water powered turbines
}
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F21S 10/00
Lighting devices or systems producing a varying lighting effect
F21S 10/002
.
{
using liquids, e.g. water ( F21S8/00P7 takes precedence )
}
F21S 10/005
.
{
using light guides ( light guides specially adpated for lighting devices G02B 6/0001 )
}
F21S 10/007
.
{
using rotating transparent or colored disks, e.g. gobo wheels
}
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F21S 10/02
.
changing colors
{
( F21S 10/002 to F21S 10/007 , F21S 10/04 take precedence )
}
F21S 10/023
. .
{
by selectively switching fixed light sources
}
F21S 10/026
. .
{
by movement of parts, e.g. by movement of reflectors or light sources ( F21S 10/007 takes precedence )
}
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F21S 10/04
.
simulating flames
F21S 10/043
. .
{
by selectively switching fixed light sources
}
F21S 10/046
. .
{
by movement of parts, e.g. by movement of reflectors or light sources
}
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F21S 10/06
.
flashing, e.g. with rotating reflector or light source
{
( signalling lighting devices mounted on vehicles B60Q 1/26 )
}
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F21S 10/063
. .
{
for providing a rotating light effect
}
F21S 10/066
. . .
{
by selectively switching fixed light sources
}
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Guide Heading:
Non-electric lighting
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F21S 11/00
Non-electric lighting devices or systems using daylight
{
( roofs with sky-light opening E04D 13/03 ; sun blinds for windows with means for redirecting light onto ceiling of a room E06B 9/00 ; hybrid lighting devices combining artificial and natural light F21S 19/00 ; solar heat collectors F24J 2/00 ; solar cells or solar cell modules H01L 31/00 )
}
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F21S 11/002
.
{
characterised by the means for collecting or concentrating the sunlight, e.g. parabolic reflectors or Fresnel lenses
}
F21S 11/005
. .
{
with tracking means for following the position of the sun
}
F21S 11/007
.
{
characterised by the means for transmitting light into the interior of a building
}
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F21S 13/00
Non-electric lighting devices or systems employing a point-like light source ( candle holders F21V 35/00 ) ; Non-electric lighting devices or systems employing a light source of unspecified shape
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F21S 13/02
.
Devices intended to be fixed, e.g. ceiling lamp, wall lamp
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F21S 13/04
. .
with a pendant
F21S 13/06
. . .
multi-branched, e.g. chandelier
F21S 13/08
. .
with suspension from a stretched wire
F21S 13/10
. .
with a standard, e.g. street lamp
F21S 13/12
.
Devices intended to be free-standing, e.g. table lamp, floor lamp
F21S 13/14
.
Lighting systems
F21S 15/00
Non-electric lighting devices or systems employing light sources not covered by main groups F21S 11/00 , F21S 13/00 or F21S 19/00
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F21S 19/00
Lighting devices or systems employing combinations of electric and non-electric light sources ; Replacing or exchanging electric light sources with non-electric light sources or vice-versa
F21S 19/005
.
{
Combining sunlight and electric light sources for indoor illumination
}
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F21S 48/00
{
Lighting devices or systems specially adapted for vehicles ( arrangements or adaptations for ships or waterborne vessels B63B 45/00 )
}
WARNING
-
Groups F21S 48/00 to F21S 48/34 do not correspond to former or current IPC groups. Concordance CPC : IPC for these groups is as follows: - F21S 48/00 - F21S 48/34 : F21S 8/10

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F21S 48/10
.
{
Headlamps
}
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F21S 48/11
. .
{
characterised by the light source
}
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F21S 48/1104
. . .
{
Attachment of light sources; Lamp holders; Terminals or connectors therefor ( F21S 48/1742 takes precedence )
}
F21S 48/1109
. . . .
{
Details of lamp holders, terminals or connectors ( mounting of a ballast for a high intensity discharge lamp on the housing wall of a headlamp B60Q )
}
F21S 48/1113
. . . .
{
Bayonet attachments
}
F21S 48/1118
. . . .
{
Wire spring attachments
}
F21S 48/1122
. . . .
{
Snap-fit attachments
}
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F21S 48/1127
. . .
{
Type of emitted light
}
F21S 48/1131
. . . .
{
Colored light
}
F21S 48/1136
. . . .
{
Ultraviolet (UV) or infrared (IR) light
}
F21S 48/114
. . . .
{
Polarized light
}
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F21S 48/1145
. . .
{
Type of light source
}
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F21S 48/115
. . . .
{
Light emitting diodes (LEDs)
}
F21S 48/1154
. . . . .
{
the main emission direction of the LED being parallel to the optical axis of the headlamp
}
F21S 48/1159
. . . . .
{
the main emission direction of the LED being angled to the optical axis of the headlamp
}
F21S 48/1163
. . . . .
{
Surface emitters, e.g. OLEDs
}
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F21S 48/1168
. . . .
{
Incandescent light sources, e.g. filament or halogen lamps
}
F21S 48/1172
. . . . .
{
having two or more filaments
}
F21S 48/1177
. . . . .
{
characterised by the shape of the filament
}
F21S 48/1181
. . . . .
{
having a filament being arranged transversally to the optical axis of the headlamp
}
F21S 48/1186
. . . .
{
High intensity discharge (HID) light source
}
F21S 48/119
. . . .
{
Fluorescent, elongated light source
}
F21S 48/1195
. . . .
{
Combination of light sources of different types or shapes
}
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F21S 48/12
. .
{
characterised by refractors, transparent cover plates or filters
}
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F21S 48/1208
. . .
{
Attachment of refractors, transparent cover plates or filters ( F21S 48/1721 takes precedence )
}
F21S 48/1216
. . . .
{
specially adapted to projection lenses
}
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F21S 48/1225
. . .
{
Type of refractor, transparent cover plates or filters
}
F21S 48/1233
. . . .
{
Cover glass
}
F21S 48/1241
. . . .
{
Light guides ( light guides per se G02B 6/0001 )
}
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F21S 48/125
. . . .
{
Projection lenses
}
F21S 48/1258
. . . . .
{
Lenses with a circular or truncated circular outline, when seen from the front
}
F21S 48/1266
. . . . .
{
Elongated lenses
}
F21S 48/1275
. . . . .
{
Composite lenses; Lenses with a patch like shape
}
F21S 48/1283
. . . . .
{
Lens surfaces, e.g. coatings, surface structures
}
F21S 48/1291
. . . . .
{
Thick lenses for providing the final automotive light distribution
}
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F21S 48/13
. .
{
characterised by reflectors
}
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F21S 48/1305
. . .
{
Attachment of reflectors ( F21S 48/1757 takes precedence )
}
F21S 48/1311
. . . .
{
specially adapted to extension reflectors
}
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F21S 48/1317
. . .
{
Optical design
}
F21S 48/1323
. . . .
{
the reflector being a surface of revolution or a planar surface, e.g. truncated
}
F21S 48/1329
. . . .
{
the reflector using total internal reflection
}
F21S 48/1335
. . . .
{
the reflector having two perpendicular cross sections having regular geometrical curves of a distinct nature
}
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F21S 48/1341
. . . .
{
the reflector consisting of complete annular areas
}
F21S 48/1347
. . . . .
{
with continuity at the junction between adjacent areas
}
F21S 48/1352
. . . . .
{
with discontinuity at the junction between adjacent areas
}
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F21S 48/1358
. . . .
{
the reflector consisting of patch like sectors
}
F21S 48/1364
. . . . .
{
with continuity at the junction between adjacent areas
}
F21S 48/137
. . . . .
{
with discontinuity at the junction between adjacent areas
}
F21S 48/1376
. . . .
{
the reflector having a structured surface, e.g. with facets or corrugations
}
F21S 48/1382
. . . .
{
the reflector having surface portions added to its general concavity
}
F21S 48/1388
. . . .
{
Combination of two or more reflectors
}
F21S 48/1394
. . .
{
Material, surface treatment or coating of the reflector
}
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F21S 48/14
. .
{
characterised by screens, non-reflecting members, light-shielding members or fixed shades
}
F21S 48/142
. . .
{
Attachment thereof ( F21S 48/1768 takes precedence )
}
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F21S 48/145
. . .
{
Details of the shape of screens, non-reflecting members, light-shielding members or fixed shades
}
F21S 48/147
. . . .
{
Hoods or cap-shaped
}
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F21S 48/15
. .
{
characterised by aesthetical components or components other than light sources, reflectors, refractors or screens, e.g. partition walls, covers, decorative trims
}
F21S 48/155
. . .
{
Attachment thereof
}
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F21S 48/17
. .
{
characterised by a variable light distribution
}
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F21S 48/1705
. . .
{
Light distributions being switched
}
F21S 48/171
. . . .
{
between right and left traffic side
}
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F21S 48/1715
. . .
{
by acting on refractors, filters or transparent cover plates
}
F21S 48/1721
. . . .
{
by moving refractors, filters or transparent cover plates
}
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F21S 48/1726
. . . .
{
by changing the light transmissivity of the refractors, filters or transparent cover plates
}
F21S 48/1731
. . . . .
{
by electro-optic means, e.g. liquid crystal or electrochromic devices
}
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F21S 48/1736
. . .
{
by acting on light sources
}
F21S 48/1742
. . . .
{
by moving light sources
}
F21S 48/1747
. . . .
{
by switching light sources ( F21S 48/1168 takes precedence )
}
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F21S 48/1752
. . .
{
by acting on reflectors
}
F21S 48/1757
. . . .
{
by moving reflectors
}
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F21S 48/1763
. . .
{
by acting on screens
}
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F21S 48/1768
. . . .
{
by moving screens
}
F21S 48/1773
. . . . .
{
Blades, i.e. screens moving in a vertical plane
}
F21S 48/1778
. . . . .
{
Flaps, i.e. screens pivoting around one of its edges
}
F21S 48/1784
. . . . .
{
Shields, i.e. screens not creating an image meant to be projected, e.g. shielding a part of the light source or a part of an additional optical element
}
F21S 48/1789
. . . . .
{
Rotating screens, i.e. screens rotating around a vertical axis
}
F21S 48/1794
. . . . .
{
Shafts, i.e. screens being a rotating shaft
}
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F21S 48/20
.
{
Signal lamps, e.g. brake lamps or turn signal lamps
}
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F21S 48/21
. .
{
characterised by the light source
}
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F21S 48/211
. . .
{
Attachment of light sources; Lamp holders, terminals or connectors therefor
}
F21S 48/212
. . . .
{
Details of lamp holders, terminals or connectors
}
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F21S 48/214
. . .
{
Type of the light source
}
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F21S 48/215
. . . .
{
Light emitting diodes (LEDs)
}
F21S 48/217
. . . . .
{
Surface emitters, e.g. OLEDs
}
F21S 48/218
. . . .
{
Strips of light sources
}
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F21S 48/22
. .
{
characterised by refractors, filters or transparent cover plates
}
F21S 48/2206
. . .
{
Attachment thereof
}
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F21S 48/2212
. . .
{
Type of refractors, filters or transparent cover plates
}
F21S 48/2218
. . . .
{
Filters
}
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F21S 48/2225
. . . .
{
Light guides ( light guides per se G02B 6/0001 )
}
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F21S 48/2231
. . . . .
{
characterised by the shape of the light guide
}
F21S 48/2237
. . . . . .
{
Bar or rod-like light guides
}
F21S 48/2243
. . . . . .
{
Plate-like light guides
}
F21S 48/225
. . . . . .
{
Light guides of complex shape or comprising a portion having a complex shape
}
NOTE
-
additional classification should be given in the groups characterising the shape of the light guides

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F21S 48/2256
. . . . .
{
characterised by the emission area
}
F21S 48/2262
. . . . . .
{
the light guide emitting on its extremity
}
F21S 48/2268
. . . . . .
{
the light guide emitting on its surface
}
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F21S 48/2275
. . . . .
{
characterised by the number of light sources coupled into the light guide
}
F21S 48/2281
. . . . . .
{
Multiple light sources
}
F21S 48/2287
. . . . . .
{
Single light source
}
F21S 48/2293
. . . . .
{
the light guide being used to transport light from a remote light source, e.g. from light generators
}
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F21S 48/23
. .
{
characterised by reflectors
}
F21S 48/232
. . .
{
Attachment thereof
}
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F21S 48/234
. . .
{
Optical design thereof
}
F21S 48/236
. . . .
{
using total internal reflection
}
F21S 48/238
. . .
{
Materials thereof, e.g. coatings
}
F21S 48/24
. .
{
characterised by the combination of reflectors and refractors
}
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F21S 48/25
. .
{
characterised by aesthetical components or components other than light sources, reflectors, refractors, e.g. partition walls, covers or decorative trims
}
F21S 48/255
. . .
{
Attachment thereof
}
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F21S 48/30
.
{
Arrangements dedicated to purposes other than light emission or distribution
}
F21S 48/31
. .
{
Protection of the lighting devices
}
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F21S 48/32
. .
{
Cooling of the lighting devices
}
F21S 48/321
. . .
{
Attachment of the means for cooling; Cooling arrangements
}
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F21S 48/323
. . .
{
Forced cooling
}
F21S 48/325
. . . .
{
using air or other gas
}
F21S 48/326
. . . .
{
using liquid
}
F21S 48/328
. . .
{
Passive cooling
}
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F21S 48/33
. .
{
Waterproofing
}
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F21S 48/332
. . .
{
Provisions for ventilation or drainage
}
F21S 48/335
. . . .
{
specifically adapted for headlamps
}
F21S 48/337
. . . .
{
specifically adapted for signal lamps
}
F21S 48/34
. .
{
Heating of the lighting devices, e.g. for de-fogging
}
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F21S 2017/00
Details solely applicable to the devices covered by groups F21S 13/00 and F21S 15/00
F21S 2017/02
.
Fastening and lifting of the lamp-glass
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Last Modified: 04/16/2013 4:31:16 PM