F:	MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING ENGINES OR PUMPS
F21:	LIGHTING (electric aspects or elements, see section H, e.g. electric light sources H01J, H01K, H05B)
F21S:	NON-PORTABLE LIGHTING DEVICES OR SYSTEMS THEREOF (burners F23D)
F21S1/00:	IPC6 Lighting devices or systems employing a point-like source; lighting devices or systems employing a light source of unspecified shape (F21S8/00, F21S9/00 take precedence)
F21S1/00A:	. of the floodlight type[N9505]
F21S1/00C:	. for illuminating an outdoor working place[N0102]
F21S1/02:	.  IPC6 Devices intended to be fixed, e.g. ceiling lamp, wall lamp
F21S1/02A:	. . to a ceiling, a wall or to the floor of a room[N9505]
F21S1/02A4:	. . . Floor lamps[N9505]
F21S2/00:	Systems of lighting devices, not provided for in main groups F21S4/00 to F21S10/00 or F21S19/00 , e.g. of modular construction
F21S2/00A:	. of modular construction
F21S2/00L:	. Lighting system employing a linear light source(F21S4/00C takes precedence)[N0108][C0608]
F21S3/00:	IPC6 Lighting devices or systems employing a linear light source (F21S8/00, F21S9/00 take precedence)
F21S3/00A:	. of the floodlight type[N9505]
F21S3/02:	.  IPC6 Devices intended to be fixed, e.g. ceiling lamp, wall lamp
F21S3/02A:	. . to a ceiling or to a wall of a room[N9505]
F21S4/00:	Lighting devices or systems using a string or strip of light sources
F21S4/00A:	. Strips of lamps; Strings rigidly mounted on a frame or included in a resin[N0108]
F21S4/00A2:	. . Floor or wall mounted markers, e.g. for indicating escape routes[N0108]
F21S4/00B:	. Electric candle lamps[N0108]
F21S4/00B2:	. . [N: Interconnected by loose cables so as to form a string (string rigidly mounted on a frame or included in a resin F21S4/00A; lamp holder therefor F21V19/00A)]
F21S4/00B4:	. . [N: Luminous garlands for Christmas trees]
F21S4/00C:	. Lighting strips[N0108]
F21S4/00E:	. 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 [M1207]
F21S4/00E2:	. . [N: the strings forming a grid, net or web structure]
F21S4/00L:	. using a strip of light sources, i.e. lighting devices or systems where the light sources are supported on a linear support
F21S4/00L2:	. . [N: the lighting device being flexible or deformable, e.g. into a curved shape]
F21S4/00L2L:	. . . [N: the lighting device being a LED tape]
F21S4/00L2R:	. . . [N: the lighting device being a LED rope light]
F21S4/00L6:	. . [N: the lighting device being rigid or comprising an elongated rigid housing, e.g. LED bars]
F21S5/00:	IPC6 Lighting devices or systems employing light sources of shapes not covered by group F21S1/00 or F21S3/00(F21S8/00, F21S9/00 take precedence)
F21S5/00A:	. U-shaped light sources or the like, e.g. sources having two straight tubular parallel glass vessels mounted on a single base[N9501]
F21S6/00:	Lighting devices intended to be free-standing 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 F21V21/00)
F21S6/00C:	. being candle-shaped with varying lighting effect of simulating flames F21S10/04; string of light sources F21S4/00
F21S6/00D:	. Table lamps, e.g. for ambient lighting
F21S6/00D2:	. . for task lighting, e.g. for reading or desk work, e.g. angle poise lamps
F21S6/00F:	. with a lamp housing in direct contact with the floor or ground
F21S6/00L:	. employing a linear light source[N0109]
F21S6/00S:	. with a lamp housing maintained at a distance from the floor or ground via a support, e.g. standing lamp for ambient lighting
F21S6/00S2:	. . for direct lighting only, e.g. task lighting
F21S6/00S4:	. . for indirect lighting only, e.g. torchiere with reflector bowl directed towards ceiling
F21S6/00S6:	. . with a combination of direct and indirect lighting
F21S8/00:	Lighting devices intended for fixed installation
F21S8/00B:	. for closely lighting a limited area, e.g. task lighting, lighting of a painting, light box for back lighting a transparency[N0109]
F21S8/00B2:	. . employing linear light source[N0109]
F21S8/00B2D:	. . . of the desk-surface type[N0109]
F21S8/00B4:	. . employing a U-shaped light source, e.g. compact lamp[N0109]
F21S8/00D:	. by means of electrical contacts, i.e. by plugging into an outlet, e.g. night lamp[N0109]
F21S8/00E:	. for lighting roadways or streets (F21S8/06, F21S8/08 take precedence)[N0109]
F21S8/00F:	. inside a domestic oven[N0109]
F21S8/00G:	. for lighting the interior of a closed vessel, e.g. a pressure tank[N0109]
F21S8/00H:	. the device being essentially made of an elongated section for supporting at least one linear light source[N0109]
F21S8/00I:	. Searchlights, i.e. outdoor lighting device producing powerful beam of parallel rays, e.g. for military or attraction purposes searchlights mounted on a vehicle B60Q1/24
F21S8/00J:	. on a floor (recess mounted type F21S8/02F)[N0109]
F21S8/00L:	. characterised by the shape of the light source[N0109]
F21S8/00L2:	. . Linear light sources[N0109]
F21S8/00L4:	. . U-shaped light sources, e.g. compact lamp[N0109]
F21S8/00L6:	. . Circular light sources[N0109]
F21S8/00L8:	. . with a combination of different light sources[N0109]
F21S8/00M:	. Solar simulators, e.g. for testing photovoltaic panels
F21S8/00P:	. for decorative purposes (with varying lighting effects F21S10/00)[N0109]
F21S8/00P2:	. . Balloons; Chinese lanterns[N0109]
F21S8/00P7:	. .  for fountain lighting; for swimming pool lighting (structural combinations of lighting devices with sanitary equipments, e.g. shower heads or water taps F21V33/00A5)[N0109][C1205]
F21S8/00Q:	.  Lighting devices for signalling other than those adapted to be mounted on a vehicle[N0109]
F21S8/00Q10:	. . Self-luminous signal lamps[N0109]
F21S8/00Q2:	. . Marker lights, e.g. navigation lights, airfield runway lights or beacon lights[N0109]
F21S8/00Q4:	. . Traffic lights; Pillar shaped lights; Lights arranged on top of each other[N0109]
F21S8/00Q6:	. . Indicator lights, e.g. for mounting on control panels or dashboards[N0109]
F21S8/00Q8:	. . Lamps on antennas or powerlines; Aerial markers[N0109]
F21S8/00R:	. for industrial, commercial, recreational or military use[N0109]
F21S8/00R2:	. . for illuminating an indoor working place[N0109]
F21S8/00R2D:	. . . for dentistry[N0109]
F21S8/00R2M:	. . . for medicine or surgery (F21S8/00M2D take precedence)[N0109]
F21S8/00R4:	. . Stage, circus, studio, theatre or indoor arena lighting[N0109]
F21S8/00R4V:	. . . using variable lighting effects[N0109]
F21S8/00R4V4:	. . . . Projected decorations[N0109]
F21S8/00R8:	. . Solar simulators[N0109]
F21S8/00T:	. for outdoor lighting, e.g. of tunnels, building, gardens, arenas, sport fields or gas stations[N0109]
F21S8/00T2:	. . Searchlights[N0109]
F21S8/00W:	. onto a wall of a room[N0109]
F21S8/00W2:	. . employing a linear light source[N0109]
F21S8/00W2B:	. . . for directing light towards a bed[N0109]
F21S8/00W4:	. . for employing a U-shaped light source, e.g. compact lamp[N0109]
F21S8/10M2C:	. . . . emitting coloured light[N0109]
F21S8/10M2H:	. . . . the light source being a gas discharge lamp, e.g. a HID lamp[N0109]
F21S8/10M2P:	. . . . emitting polarised light[N0109]
F21S8/02:	. of recess-mounted type, e.g. downlighters
F21S8/02F:	. . intended to be recessed in a floor or like ground surface, e.g. pavement or false floor
F21S8/02G:	. . intended to be recessed in a wall or like vertical structure, e.g. building facade
F21S8/02H:	. . intended to be recessed in a ceiling or like overhead structure, e.g. suspended ceiling
F21S8/02L:	. . employing a linear light source[N0109]
F21S8/02R:	. . being retractable, i.e. having two fixed positions, one recessed, e.g. in a wall, floor or ceiling, and one extended when in use
F21S8/02U:	. . employing a U-shaped light source, e.g. compact lamp[N0109]
F21S8/03:	. of surface-mounted type F21S8/02, F21S8/04 take precedence; details of wall or floor bases F21V21/02
F21S8/03E:	. . the device consisting essentially only of a light source holder with an exposed light source, e.g. a fluorescent tube
F21S8/03F:	. . the surface being a floor or like ground surface, e.g. pavement
F21S8/03G:	. . the surface being a wall or like vertical structure, e.g. building facade
F21S8/03G1:	. . . by means of plugging into a wall outlet, e.g. night light
F21S8/03G3:	. . . by means of a rigid support, e.g. bracket or arm
F21S8/03G9:	. . . for mounting in a corner, i.e. between adjacent walls or wall and ceiling
F21S8/03T:	. . intended to be mounted on a light track suspended from a light track F21S8/06T; details of supporting elements displaceable along a guiding element F21V21/34
F21S8/04:	. intended only for mounting on a ceiling or the like overhead structures
F21S8/04B:	. . mounted by means of a rigid support, e.g. bracket or arm
F21S8/04L:	. . employing a linear light source[N0109]
F21S8/04M:	. . having multiple lighting devices, e.g. connected to a common ceiling base
F21S8/04U:	. . employing a U-shaped light source, e.g. compact lamp[N0109]
F21S8/06:	. . by suspension
F21S8/06A:	. . . with a non-rigid pendant, i.e. a cable, wire or chain
F21S8/06B:	. . . with a rigid pendant, i.e. a pipe or rod
F21S8/06M:	. . . multi-branched, e.g. a chandelier
F21S8/06P:	. . . from a pendant[N0109]
F21S8/06P2:	. . . . employing a linear light source (F21S8/06P6L takes precedence)[N0109]
F21S8/06P6:	. . . . multi-branched, e.g. chandelier[N0109]
F21S8/06P6L:	. . . . . employing a linear light source[N0109]
F21S8/06T:	. . . from a light track details of supporting elements displaceable along a guiding element F21V21/34
F21S8/06W:	. . . from a stretched wire
F21S8/06W2:	. . . . employing a linear light source[N0109]
F21S8/08:	. with a standard F21S6/00 takes precedence
F21S8/08B:	. . of low-built type, e.g. landscape light
F21S8/08B5:	. . . of bollard type, i.e. with lighting fixture integrated into the standard or mounted on top of it and having substantially the same diameter
F21S8/08H:	. . of high-built type, e.g. street light
F21S8/08H2:	. . . with lighting device attached sideways of the standard, e.g. for roads and highways
F21S8/08H4:	. . . with lighting device mounted on top of the standard, e.g. for pedestrian zones
F21S8/08L:	. . employing a linear light source[N0109]
F21S8/10:	. specially adapted for vehicles
F21S8/10M:	. .  mounted on the vehicle front part, e.g. headlamps (providing a single shaped beam F21S8/12)[N0109]
F21S8/10M2:	. . .  employing a point-like light source[N0109]
F21S8/10M4:	. . . employing a linear light source[N0109]
F21S8/10M6:	. . .  with means for chopping the beam; Ultraviolet (UV) or infrared (IR) light sources[N0109]
F21S8/10Q:	. . mounted on the vehicle rear part[N0109]
F21S8/10Q2:	. . . using light emitting diodes (LEDs)[N0109]
F21S8/10Q4:	. . . using light guides[N0109]
F21S8/10Q6:	. . . using light strips[N0109]
F21S8/12:	. . providing single shaped beams or asymmetric beams, e.g. for penetrating fog or for preventing glare
F21S8/12C:	. . .  emitting colored light[N0904]
F21S8/12C2:	. . . .  Ultraviolet (UV) or infrared (IR) light[N0904]
F21S8/12G:	. . . using light guides[N0109]
F21S8/12P:	. . .  emitting polarized light[N0904]
F21S8/12S:	. . .  characterised by the type of light source[N0904]
F21S8/12S10:	. . . .  Combination of light sources of a different kind or of a different shape[N0904]
F21S8/12S2:	. . . .  the light source being one or a plurality of LEDs[N0904]
F21S8/12S4:	. . . .  the light source being an incandescent light source, e.g. a filament lamp[N0904]
F21S8/12S4D:	. . . . .  having two or more filaments[N0904]
F21S8/12S4T:	. . . . .  characterised by filaments being arranged transversely to the optical axis of the headlamp[N0904]
F21S8/12S6:	. . . .  the light source being a high intensity discharge [HID lamp] [N0904]
F21S8/12S8:	. . . .  the light source being a fluorescent lamp[N0904]
F21S9/00:	Lighting devices with a built-in power supply; Systems employing lighting devices with a built-in power supply
F21S9/02:	. the power supply being a battery or accumulator
F21S9/02E:	. . [N: Emergency lighting devices]
F21S9/02E4:	. . . [N: using a supplementary light source for emergency lighting]
F21S9/02T:	. . [N: rechargeable by using wind power, e.g. using wind turbines]
F21S9/02W:	. . [N: rechargeable by using hydropower, e.g. using water powered turbines]
F21S9/03:	. . rechargeable by exposure to light
F21S9/03I:	. . . [N: the solar unit being separate from the lighting unit]
F21S9/03S:	. . . [N: the solar unit being integrated within the support for the lighting unit, e.g. within or on a pole]
F21S9/03W:	. . . [N: the solar unit and the lighting unit being located within or on the same housing]
F21S9/04:	. the power supply being a generator
F21S9/04F:	. . [N: driven by wind power, e.g. by wind turbines]
F21S9/04P:	. . [N: driven by hydropower, e.g. by water powered turbines]
F21S10/00:	Lighting devices or systems producing a varying lighting effect
F21S10/00A:	. using liquids, e.g. water F21S8/00P7 takes precedence
F21S10/00B:	. using light guides light guides specially adpated for lighting devices G02B6/00L
F21S10/00C:	. [N: using rotating transparent or colored disks, e.g. gobo wheels]
F21S10/02:	. changing colors F21S10/00A to F21S10/00C, F21S10/04 take precedence
F21S10/02F:	. . [N: by selectively switching fixed light sources]
F21S10/02M:	. . [N: by movement of parts, e.g. by movement of reflectors or light sources (F21S10/00C takes precedence)]
F21S10/04:	. simulating flames
F21S10/04F:	. . [N: by selectively switching fixed light sources]
F21S10/04M:	. . [N: by movement of parts, e.g. by movement of reflectors or light sources]
F21S10/06:	. flashing, e.g. with rotating reflector or light source [N: (signalling lighting devices mounted on vehicles B60Q1/26)]
F21S10/06F:	. . [N: for providing a rotating light effect]
F21S10/06F6:	. . . [N: by selectively switching fixed light sources]
F21S11/00:	Non-electric lighting devices or systems using daylight [N: (roofs with sky-light opening E04D13/03; sun blinds for windows with means for redirecting light onto ceiling of a room E06B9/00; hybrid lighting devices combining artificial and natural light F21S19/00; solar heat collectors F24J2/00; solar cells or solar cell modules H01L31/00)]
F21S11/00C:	. [N: characterised by the means for collecting or concentrating the sunlight, e.g. parabolic reflectors or Fresnel lenses]
F21S11/00C4:	. . [N: with tracking means for following the position of the sun]
F21S11/00T:	. [N: characterised by the means for transmitting light into the interior of a building]
F21S13/00:	Non-electric lighting devices or systems employing a point-like light source ; Non-electric lighting devices or systems employing a light source of unspecified shape
F21S13/02:	. Devices intended to be fixed, e.g. ceiling lamp, wall lamp
F21S13/04:	. . with a pendant
F21S13/06:	. . . multi-branched, e.g. chandelier
F21S13/08:	. . with suspension from a stretched wire
F21S13/10:	. . with a standard, e.g. street lamp
F21S13/12:	. Devices intended to be free-standing, e.g. table lamp, floor lamp
F21S13/14:	. Lighting systems
F21S15/00:	Non-electric lighting devices or systems employing light sources not covered by main groups F21S11/00 , F21S13/00 or F21S19/00
F21S19/00:	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
F21S19/00H:	. [N: Combining sunlight and electric light sources for indoor illumination]
F21S48/00:	Lighting devices or systems specially adapted for vehicles arrangements or adaptations for ships or waterborne vessels B63B45/00
F21S48/10:	. Headlamps
F21S48/11:	. . characterised by the light source
F21S48/11A:	. . . Attachment of light sources; Lamp holders; Terminals or connectors therefor F21S48/17L2 takes precedence
F21S48/11A2:	. . . . 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)
F21S48/11A4:	. . . . [N: Bayonet attachments]
F21S48/11A6:	. . . . [N: Wire spring attachments]
F21S48/11A8:	. . . . [N: Snap-fit attachments]
F21S48/11E:	. . . Type of emitted light
F21S48/11E2:	. . . . Colored light
F21S48/11E4:	. . . . Ultraviolet (UV) or infrared (IR) light
F21S48/11E6:	. . . . Polarized light
F21S48/11T:	. . . Type of light source
F21S48/11T10:	. . . . Combination of light sources of different types or shapes
F21S48/11T2:	. . . . [N: Light emitting diodes (LEDs)]
F21S48/11T2D:	. . . . . [N: the main emission direction of the LED being parallel to the optical axis of the headlamp]
F21S48/11T2P:	. . . . . [N: the main emission direction of the LED being angled to the optical axis of the headlamp]
F21S48/11T2S:	. . . . . [N: Surface emitters, e.g. OLEDs]
F21S48/11T4:	. . . . Incandescent light sources, e.g. filament or halogen lamps
F21S48/11T4D:	. . . . . having two or more filaments
F21S48/11T4S:	. . . . . [N: characterised by the shape of the filament]
F21S48/11T4T:	. . . . . having a filament being arranged transversally to the optical axis of the headlamp
F21S48/11T6:	. . . . High intensity discharge (HID) light source
F21S48/11T8:	. . . . Fluorescent, elongated light source
F21S48/12:	. . characterised by refractors, transparent cover plates or filters
F21S48/12A:	. . . Attachment of refractors, transparent cover plates or filters F21S48/17F2 takes precedence
F21S48/12A2:	. . . . specially adapted to projection lenses
F21S48/12T:	. . . Type of refractor, transparent cover plates or filters
F21S48/12T2:	. . . . Cover glass
F21S48/12T4:	. . . . Light guides light guides per se G02B6/00L
F21S48/12T6:	. . . . Projection lenses
F21S48/12T6C:	. . . . . [N: Lenses with a circular or truncated circular outline, when seen from the front]
F21S48/12T6E:	. . . . . [N: Elongated lenses]
F21S48/12T6P:	. . . . . [N: Composite lenses; Lenses with a patch like shape]
F21S48/12T6S:	. . . . . [N: Lens surfaces, e.g. coatings, surface structures]
F21S48/12T6T:	. . . . . [N: Thick lenses for providing the final automotive light distribution]
F21S48/13:	. . characterised by reflectors
F21S48/13A:	. . . Attachment of reflectors F21S48/17R2 takes precedence
F21S48/13A2:	. . . . specially adapted to extension reflectors
F21S48/13D:	. . . Optical design
F21S48/13D10:	. . . . the reflector consisting of patch like sectors
F21S48/13D10C:	. . . . . with continuity at the junction between adjacent areas
F21S48/13D10D:	. . . . . with discontinuity at the junction between adjacent areas
F21S48/13D12:	. . . . the reflector having a structured surface, e.g. with facets or corrugations
F21S48/13D14:	. . . . the reflector having surface portions added to its general concavity
F21S48/13D16:	. . . . Combination of two or more reflectors
F21S48/13D2:	. . . . the reflector being a surface of revolution or a planar surface, e.g. truncated
F21S48/13D4:	. . . . the reflector using total internal reflection
F21S48/13D6:	. . . . the reflector having two perpendicular cross sections having regular geometrical curves of a distinct nature
F21S48/13D8:	. . . . the reflector consisting of complete annular areas
F21S48/13D8C:	. . . . . with continuity at the junction between adjacent areas
F21S48/13D8D:	. . . . . with discontinuity at the junction between adjacent areas
F21S48/13M:	. . . Material, surface treatment or coating of the reflector
F21S48/14:	. . characterised by screens, non-reflecting members, light-shielding members or fixed shades
F21S48/14A:	. . . Attachment thereof F21S48/17S2 takes precedence
F21S48/14D:	. . . Details of the shape of screens, non-reflecting members, light-shielding members or fixed shades
F21S48/14D2:	. . . . Hoods or cap-shaped
F21S48/15:	. . characterised by aesthetical components or components other than light sources, reflectors, refractors or screens, e.g. partition walls, covers, decorative trims
F21S48/15A:	. . . Attachment thereof
F21S48/17:	. . characterised by a variable light distribution
F21S48/17D:	. . . Light distributions being switched
F21S48/17D2:	. . . . between right and left traffic side
F21S48/17F:	. . . by acting on refractors, filters or transparent cover plates
F21S48/17F2:	. . . . by moving refractors, filters or transparent cover plates
F21S48/17F4:	. . . . by changing the light transmissivity of the refractors, filters or transparent cover plates
F21S48/17F4E:	. . . . . by electro-optic means, e.g. liquid crystal or electrochromic devices
F21S48/17L:	. . . by acting on light sources
F21S48/17L2:	. . . . by moving light sources
F21S48/17L4:	. . . . by switching light sources F21S48/11T4 takes precedence [M1207]
F21S48/17R:	. . . by acting on reflectors
F21S48/17R2:	. . . . by moving reflectors
F21S48/17S:	. . . by acting on screens
F21S48/17S2:	. . . . by moving screens
F21S48/17S2B:	. . . . . [N: Blades, i.e. screens moving in a vertical plane]
F21S48/17S2F:	. . . . . [N: Flaps, i.e. screens pivoting around one of its edges]
F21S48/17S2H:	. . . . . [N: 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]
F21S48/17S2R:	. . . . . [N: Rotating screens, i.e. screens rotating around a vertical axis]
F21S48/17S2S:	. . . . . [N: Shafts, i.e. screens being a rotating shaft]
F21S48/20:	. Signal lamps, e.g. brake lamps or turn signal lamps
F21S48/21:	. . characterised by the light source
F21S48/21A:	. . . Attachment of light sources; Lamp holders, terminals or connectors therefor
F21S48/21A2:	. . . . Details of lamp holders, terminals or connectors
F21S48/21T:	. . . Type of the light source
F21S48/21T12:	. . . . Strips of light sources
F21S48/21T2:	. . . . [N: Light emitting diodes (LEDs)]
F21S48/21T2S:	. . . . . [N: Surface emitters, e.g. OLEDs]
F21S48/22:	. . characterised by refractors, filters or transparent cover plates
F21S48/22A:	. . . Attachment thereof
F21S48/22T:	. . . Type of refractors, filters or transparent cover plates
F21S48/22T2:	. . . . Filters
F21S48/22T4:	. . . . Light guides light guides per se G02B6/00L
F21S48/22T4D:	. . . . . characterised by the shape of the light guide
F21S48/22T4D2:	. . . . . . Bar or rod-like light guides
F21S48/22T4D4:	. . . . . . Plate-like light guides
F21S48/22T4D6:	. . . . . . Light guides of complex shape or comprising a portion having a complex shape
F21S48/22T4E:	. . . . . characterised by the emission area
F21S48/22T4E2:	. . . . . . the light guide emitting on its extremity
F21S48/22T4E4:	. . . . . . the light guide emitting on its surface
F21S48/22T4S:	. . . . . characterised by the number of light sources coupled into the light guide
F21S48/22T4S2:	. . . . . . Multiple light sources
F21S48/22T4S4:	. . . . . . Single light source
F21S48/22T4T:	. . . . . the light guide being used to transport light from a remote light source, e.g. from light generators
F21S48/23:	. . characterised by reflectors
F21S48/23A:	. . . Attachment thereof
F21S48/23D:	. . . [N: Optical design thereof]
F21S48/23D4:	. . . . [N: using total internal reflection]
F21S48/23M:	. . . [N: Materials thereof, e.g. coatings]
F21S48/24:	. . characterised by the combination of reflectors and refractors
F21S48/25:	. . characterised by aesthetical components or components other than light sources, reflectors, refractors, e.g. partition walls, covers or decorative trims
F21S48/25A:	. . . Attachment thereof
F21S48/30:	. Arrangements dedicated to purposes other than light emission or distribution
F21S48/31:	. . Protection of the lighting devices
F21S48/32:	. . Cooling of the lighting devices
F21S48/32A:	. . . Attachment of the means for cooling; Cooling arrangements
F21S48/32F:	. . . Forced cooling
F21S48/32F2:	. . . . using air or other gas
F21S48/32F4:	. . . . using liquid
F21S48/32P:	. . . Passive cooling
F21S48/33:	. . Waterproofing
F21S48/33V:	. . . Provisions for ventilation or drainage
F21S48/33V2:	. . . . specifically adapted for headlamps
F21S48/33V4:	. . . . specifically adapted for signal lamps
F21S48/34:	. . Heating of the lighting devices, e.g. for de-fogging