IPC Subgroup
H05B 33/24 of metallic reflective layers
Introduced: September 1968
Last revised: January 2006
Full Title
Electroluminescent light sources > Light sources with substantially two-dimensional [2D] radiating surfaces > characterised by the chemical or physical composition or the arrangement of auxiliary dielectric or reflective layers > of metallic reflective layers
Classification Context
- Section:
- ELECTRICITY
- Class:
- ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- Subclass:
- ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL