Lens barrel

Details Lens barrel Lens barrel

1993-05-28

1995-03-21

Ben, Loha

Optical: systems and elements

Lens

With variable magnification

359700, 359704, 359823, G02B 1514

Patent

active

054001811

ABSTRACT:
A lens barrel includes two movable lens groups. The outer peripheral portion of an internal lens holding ring is fitted to the inner peripheral portion of an external lens holding ring so that these two rings are slidable on each other. The external lens holding ring is formed with a guide slot with which a cam pin embedded in the internal lens holding ring engages. The cam pin engages with another guide slot formed in a different cylindrical member.

REFERENCES:
patent: 4275952 (1981-06-01), Uesugi

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