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PCE
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DIFF Subgroup
G03B 13/24

Focusing screens

Introduced: September 1968

Full Title

Viewfinders; Focusing aids for cameras; Means for focusing for cameras; Autofocus systems for cameras > Focusing aids > Focusing screens

IPC and CPC are identically structured here. All 2 subcodes exist in both systems.

Child Classifications

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  • G03B 13/26 with magnifiers for inspecting image formed on screen IPC+CPC Available in IPC and CPC
  • G03B 13/28 Image-splitting devices IPC+CPC Available in IPC and CPC