Cooperative Patent Classification


CPC Definition - Subclass F21K

Printable version [PDF]
Last Updated Version: 2016.11
LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
Definition statement

This place covers:

The following light sources per se:

  • Luminescence light sources that do not use electricity in the generation of their light (e.g. chemoluninescence, triboluminescence or thermoluminescence),
  • Light sources that are created by charges of explosive or combustible materials (e.g. illuminating flash devices)
  • Light sources that are not provided for in another subclass.
References
References out of a residual place

Examples of places in relation to which this place is residual:

Explosive or thermic compositions

Luminescent materials

Candles

Incandescent mantles; other incandescent bodies heated by combustion

Selection of luminescent materials for light screens

Burners

Fireworks

Light pointers

Photographic flash units

Using a radioactive source to excite a material into luminescence

Electric discharge tubes or discharge lamps

Electric incandescent lamps

Semiconductor devices adapted for light emission

Masers, lasers

Electric arc lamps

Electroluminescent light sources

Light sources using luminescence (light sources using a charge of combustible material F21K 5/00)
Definition statement

This place covers:

  • Light sources
  • using luminescence;
  • excited by infra-red radiation using up-conversion;
  • using triboluminescence;
  • using chemiluminescence;
  • activated by an electric field i.e. electrochemiluminescence.
References
Limiting references

This place does not cover:

Light sources using a charge of combustible material

References out of a residual place

Examples of places in relation to which this place is residual:

Using excitation by another light source

Frequency changing of light

Lamps, other than those in which all the electrodes are within the vessel, in which a screen or coating is excited to luminesce by radioactive material located inside the vessel

Using electroluminescence

Informative references

Attention is drawn to the following places, which may be of interest for search:

Luminescent materials

{excited by infra-red radiation using up-conversion}
References
References out of a residual place

Examples of places in relation to which this place is residual:

Frequency changing of light

Light sources using a charge of combustible material, e.g. illuminating flash devices
References
References out of a residual place

Examples of places in relation to which this place is residual:

Explosive or thermic compositions

Fireworks

Photographic flash units

{Ignition devices in photo flash bulbs}
References
References out of a residual place

Examples of places in relation to which this place is residual:

Ignition devices being part of a shutter mechanism included in a camera

Ignition devices not being part of a shutter mechanism and included in a camera

Ignition circuits for combustion lamps

{using mechanical firing, e.g. percussion of a fulminating charge}
References
References out of a residual place

Examples of places in relation to which this place is residual:

Ignition devices using mechanical firing included in a camera

Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
Definition statement

This place covers:

  • LED lamp, consisting of a retrofit lamp, for replacement of a halogen, tungsten filament, discharged lamp or other similar lamp in an existing lighting device, the LED lamp having a connector for use with a standard socket of a existing lighting device, the LED lamp using one or more semiconductor as light generating element
  • LED module, consisting of a self-contained assembly of light emitting diodes that can be installed as a unit, for insertion in a housing in order to form a lighting device, e.g. for street lighting

Examples for LED lamps

Ex.: US2010301729

media0.png

Ex.: DE102010002228

media1.png

Ex.: WO2011055519

media2.png

Ex.: WO2009037053

media3.png

Examples for LED modules

Ex.: EP1998107

media4.png

References
References out of a residual place

Examples of places in relation to which this place is residual:

Light emitting diodes, LED packages

OLEDs per se

Laser diodes per se

Details of circuits arrangements for LED's

Control related to points in colour temperature diagram

Electric lamps using a combination of different types of light generation

Informative references

Attention is drawn to the following places, which may be of interest for search:

Systems of lighting devices of a modular construction, not provided for in main groups F21S 4/00 - F21S 10/00 or F21S 19/00

Lighting devices using a string rigidly mounted on a frame or included in a resin

Details of lighting devices

Packages with a plurality of LED dies

Details of printed circuit boards

Glossary of terms

In this place, the following terms or expressions are used with the meaning indicated:

LED

Light Emitting Diode

OLED

Organic Light Emitting Diode