Lens barrel

Details Lens barrel Lens barrel

1977-03-17

1979-05-15

Evans, F. L.

G02B 704

Patent

active

041545109

ABSTRACT:
A lens barrel comprises an outer sheath internally formed with a detent step, and an inner sheath formed with a plurality of slits which are open at one end thereof and with an outward projection located on said one end and a moveable lens disposed within said inner sheath for axial movement therealong upon a relative rotational movement between said inner and outer sheath whereby relative axial movement between the inner and outer sheath is prohibited. Provision of bevelled surfaces for engagement between the outward projection and the detent step minimizes the influence of dimensional variation the inner and outer sheaths.

REFERENCES:
patent: 3817601 (1974-06-01), Colaiace et al.
patent: 3951522 (1976-04-01), Hashimoto et al.
patent: 4030113 (1977-06-01), Obreschkow

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