Lens barrel operating mechanism

Details Lens barrel operating mechanism Lens barrel operating mechanism

1992-05-20

1993-06-29

Ben, Loha

Optical: systems and elements

Lens

With variable magnification

359705, 3541951, G02B 1514

Patent

active

052239802

ABSTRACT:
A lens barrel operating mechanism for use in a lens barrel provided with a stationary ring is provided. An operating ring arranged on the outer circumference of the stationary ring is provided to be capable of moving in the optical axis direction of the stationary ring and rotating about the optical axis. The operating ring is provided with annular grooves formed on the inner circumferential surface thereof, with a sliding member having rollers set in the annular grooves in such a manner as to permit the rollers to move freely in the extending direction of the annular grooves and capable of moving in interlocking relation with the movement of the operating ring in the optical axis direction, and with a clicking mechanism arranged between the sliding member and the side of the stationary ring and giving the operator a clicking sensation for each of the terminal positions in the range of movement of the operating ring in the optical axis direction.

REFERENCES:
patent: 4071850 (1978-01-01), Okura
patent: 4334737 (1982-06-01), Nozawa et al.
patent: 4346967 (1982-08-01), Komoto et al.
patent: 4448496 (1984-05-01), Isobe et al.
patent: 4506959 (1985-03-01), Hama
patent: 4720182 (1988-01-01), Imanari
patent: 4806000 (1989-02-01), Shiokama et al.
patent: 4890132 (1989-12-01), Hama
patent: 4893145 (1990-01-01), Matsuda
patent: 5041855 (1991-08-01), Takezawa et al.

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