F21S NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
Introduced: September 1968
Last revised: January 2000
Classification Context
- Section:
- MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- Class:
- LIGHTING
- Subclass:
- NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
Description
F21S covers stationary and fixed lighting apparatus designed for permanent or semi-permanent installation, including architectural, industrial, and domestic lighting fixtures, as well as specialized lighting systems for vehicle exteriors such as headlights, taillights, and signal lamps. This subclass encompasses the mechanical design, optical elements, heat dissipation, mounting structures, and control systems specific to these non-portable applications. Vehicle lighting devices classified here are those adapted to the exterior of vehicles, while portable or handheld lighting devices fall under related classes. The scope includes both traditional lamp-based systems and modern light-emitting diode (LED) fixtures designed for these fixed-installation contexts.
Scope Notes
Glossary: Light source Light sources The entity (e.g. light bulb, fluorescent tube, gas mantle or combustible charge) that generates light for a lighting device. | Application references: Arrangement or adaptation of lighting devices for vehicles Railway light signals Illumination specially adapted for railway points, form signals or gates Adaptation of lighting devices for ships or other waterborne vessels Adaptation of lighting devices for aircraft Road surface pavement lights Illuminated markings for roads , , , , Apparatus for illuminating scene for taking photographs Traffic lights Illuminated signs
Related Keywords
13 direct subcodes
Child Classifications
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- F21S 10/00 Lighting devices or systems producing a varying lighting effect
- F21S 11/00 Non-electric lighting devices or systems using daylight
- F21S 13/00 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
- F21S 15/00 Non-electric lighting devices or systems employing light sources not covered by main groups , or
- 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
- F21S 2/00 Systems of lighting devices, not provided for in main groups or , e.g. of modular construction
- F21S 4/00 Lighting devices or systems using a string or strip of light sources
- F21S 41/00 Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
- F21S 43/00 Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
- F21S 45/00 Arrangements within vehicle lighting devices specially adapted for vehicle exteriors, for purposes other than emission or distribution of light
- F21S 6/00 Lighting devices intended to be free-standing
- F21S 8/00 Lighting devices intended for fixed installation
- F21S 9/00 Lighting devices with a built-in power supply; Systems employing lighting devices with a built-in power supply