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PCE
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Search for IPC and CPC classification codes or keywords
DIFF Subgroup
G02F 1/03

based on ceramics or electro-optical crystals, e.g. exhibiting Pockels effect or Kerr effect (G02F1/061 takes precedence)

Introduced: July 1974

Title

Titles differ between systems:

IPC: based on ceramics or electro-optical crystals, e.g. exhibiting Pockels or Kerr effect

CPC: based on ceramics or electro-optical crystals, e.g. exhibiting Pockels effect or Kerr effect (G02F1/061 takes precedence)

Full Title

Full titles differ between systems:

IPC:

Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics > for the control of the intensity, phase, polarisation or colour > based on ceramics or electro-optical crystals, e.g. exhibiting Pockels or Kerr effect

CPC:

Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics > for the control of the intensity, phase, polarisation or colour (G02F1/29, G02F1/35 take precedence) > based on ceramics or electro-optical crystals, e.g. exhibiting Pockels effect or Kerr effect (G02F1/061 takes precedence)

CPC subdivides this area 3x more granularly than IPC with 5 additional codes.

5 codes are CPC-only extensions.

2 shared codes have differing titles between IPC and CPC.

IPC defines codes here since 1974.

Child Classifications

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  • G02F 1/0327 CPC only CPC only
  • G02F 1/0333 CPC only CPC only
  • G02F 1/0338 CPC only CPC only
  • G02F 1/0344 CPC only CPC only