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PCE
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DIFF Subgroup
H05B 33/22

characterised by the chemical or physical composition or the arrangement of auxiliary dielectric or reflective layers

Introduced: September 1968

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

IPC and CPC are identically structured here. All 1 subcodes exist in both systems.

1 shared codes have differing titles between IPC and CPC.

Child Classifications

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  • H05B 33/24 of metallic reflective layers (H05B33/26 takes precedence) IPC+CPC Available in IPC and CPC