DIFF Subgroup
H05B 33/12 Light sources with substantially two-dimensional [2D] radiating surfaces
Introduced: September 1968
Full Title
Electroluminescent light sources > Light sources with substantially two-dimensional [2D] radiating surfaces
IPC and CPC are identically structured here. All 5 subcodes exist in both systems.
Child Classifications
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- H05B 33/14 characterised by the chemical or physical composition or the arrangement of the electroluminescent material +1 CPC IPC+CPC Available in IPC and CPC
- H05B 33/18 characterised by the nature or concentration of the activator IPC+CPC Available in IPC and CPC
- H05B 33/20 characterised by the chemical or physical composition or the arrangement of the material in which the electroluminescent material is embedded IPC+CPC Available in IPC and CPC
- H05B 33/22 characterised by the chemical or physical composition or the arrangement of auxiliary dielectric or reflective layers IPC+CPC Available in IPC and CPC
- H05B 33/26 characterised by the composition or arrangement of the conductive material used as an electrode IPC+CPC Available in IPC and CPC