Lens barrel

Details Lens barrel Lens barrel

1995-09-27

1996-10-01

Gellner, Michael L.

Photography

Camera detail

Lens mount

359819, 359827, G03B 1712, G02B 702, G02B 714

Patent

active

055614876

ABSTRACT:
A lens barrel comprises a barrel body, inside and outside fitting members disposed within the barrel body at a predetermined interval in a direction along an axis thereof and each formed with a female screw, an inside lens holding frame having a male screw screwed into the female screw of the inside fitting member and an outside lens holding frame having a male screw screwed into the female screw of the outside fitting member. An external diameter of the male screw of the inside lens holding frame is larger than an internal diameter of the female screw of the outside fitting member. The male screw of the inside lens holding frame is segmented into a plurality of portions by a plurality of notches having an internal diameter smaller than the internal diameter of the female screw. The lens barrel also comprises a plurality of recesses formed in the outside fitting member and admitting passages of the plurality of segmented male screw portions of the inside lens holding frame.

REFERENCES:
patent: 4323303 (1982-04-01), Enomoto
patent: 4738512 (1988-04-01), Faatz et al.
patent: 5339193 (1994-08-01), Korpert et al.

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