Ring structure for detachably mounting light diffusion disk on l

Details Ring structure for detachably mounting light diffusion disk on l Ring structure for detachably mounting light diffusion disk on l

1984-03-28

1987-06-02

Corbin, John K.

350318, G02B 702

Patent

active

046698248

ABSTRACT:
Presented is an elastically deformable ring structure useful to effect the detachable mounting of a lens cap, filter, or light diffusion disk on the cylindrical lens barrel of a camera. The ring structure is elastically deformable from a non-cylindrical or non-circular configuration to a substantially cylindrical or circular configuration whereby the inherent resilience of the ring structure when mounted on the cylindrical lens barrel retains the ring structure in proper position detachably attached to the lens barrel.

REFERENCES:
patent: 2039709 (1936-05-01), Crumrine
patent: 2147482 (1939-02-01), Butler
patent: 3696238 (1972-10-01), Szymanski
patent: 4427265 (1984-01-01), Suzuki et al.

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