Light intercepting apparatus of lens barrel

Details Light intercepting apparatus of lens barrel Light intercepting apparatus of lens barrel

1993-06-10

1994-11-15

Ben, Loha

Optical: systems and elements

Glare or unwanted light reduction

359612, 359698, 359823, 35419512, G02B 2700

Patent

active

053653734

ABSTRACT:
A light intercepting apparatus of a lens barrel is provided in which at least two lens assemblies, provided in the lens barrel, are adjustable in an optical axis direction. The apparatus includes a cylindrical light intercepting member which isolates a light path, defined between the lens assemblies, from outside light, wherein the light intercepting member is expandable and contractable in accordance with the relative movement of the lens assemblies. The apparatus further includes a holding member which holds an end of the light intercepting member so that the light intercepting member may be expanded or contracted.

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