Beam splitting or combining systems (polarising systems G02B27/28; mixing and splitting light signals using optical waveguides G02B6/28; )

Introduced: September 1968

Title

Titles differ between systems:

IPC: Beam splitting or combining systems

CPC: Beam splitting or combining systems (polarising systems G02B27/28; mixing and splitting light signals using optical waveguides G02B6/28; )

Full Title

Full titles differ between systems:

IPC:

Optical systems or apparatus not provided for by any of the groups , > Beam splitting or combining systems

CPC:

Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 > Beam splitting or combining systems (polarising systems G02B27/28; mixing and splitting light signals using optical waveguides G02B6/28; )

CPC subdivides this area 3x more granularly than IPC with 6 additional codes.

6 codes are CPC-only extensions.

Child Classifications

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G02B 27/1006 +2 CPC CPC only CPC only
G02B 27/106 CPC only CPC only
G02B 27/1066 CPC only CPC only
G02B 27/1073 CPC only CPC only
G02B 27/108 CPC only CPC only
G02B 27/1086 +1 CPC CPC only CPC only
G02B 27/12 operating by refraction only +2 CPC IPC+CPC Available in IPC and CPC
G02B 27/14 operating by reflection only +8 CPC IPC+CPC Available in IPC and CPC
G02B 27/16 used as aids for focusing IPC+CPC Available in IPC and CPC