Lens barrel with reduced parts for fixing interlocking key to ro

Details Lens barrel with reduced parts for fixing interlocking key to ro Lens barrel with reduced parts for fixing interlocking key to ro

1995-12-08

1997-07-15

Epps, Georgia Y.

Optical: systems and elements

Lens

With variable magnification

359708, G02B 1514

Patent

active

056488769

ABSTRACT:
A lens barrel includes an interlocking key member, extending in an optical-axis direction, for transferring a rotary force for moving an optical system and a rotary member serving to hold the interlocking key member and rotating about the optical axis. The rotary member has an inserted portion into which the interlocking key member is inserted and an engagement portion for regulating a movement of the interlocking key member in the optical-axis direction. The interlocking key member has an engaged portion capable of engaging with the engagement portion when inserted into the inserted portion of the rotary member.

REFERENCES:
patent: 4681406 (1987-07-01), Naito
patent: 4925282 (1990-05-01), Kanno
patent: 5151729 (1992-09-01), Takayama
patent: 5477387 (1995-12-01), Takayama
patent: 5576894 (1996-11-01), Kuwana

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