DIFF Subgroup
G02B 5/06 Fluid-filled or evacuated prisms
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
Optical elements other than lenses > Prisms > Fluid-filled or evacuated prisms
CPC:
Optical elements other than lenses (light guides G02B6/00; optical logic elements G02F3/00) > Prisms > Fluid-filled or evacuated prisms
No child classifications to compare. This is a leaf node in both IPC and CPC.