Lens barrel

Details Lens barrel Lens barrel

1986-11-19

1988-08-16

Punter, William H.

G02B 704

Patent

active

047639873

ABSTRACT:
A lens barrel has a lens barrel body, a movable lens unit accommodated in the lens barrel body and movable in a direction of an optical axis, a moving operational mechanism for moving the movable lens unit and a handling load change mechanism provided between the lens barrel body and the moving operational mechanism. The handling load change mechanism includes a moving operational member sliding contact portion and a lens barrel sliding contact portion which support handling loads through a fluid lubricant and a change operational member for changing the area of mutual contact by relative motion between the sliding portion.

REFERENCES:
patent: 3834796 (1974-09-01), Komine
patent: 4110769 (1978-08-01), Schutz et al.
patent: 4413894 (1983-11-01), Miki et al.
patent: 4456356 (1984-06-01), Okabe
patent: 4553817 (1985-11-01), Ando et al.
patent: 4676600 (1987-06-01), Takizawa

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