Zoom lens assembly for a zoom camera

Details Zoom lens assembly for a zoom camera Zoom lens assembly for a zoom camera

1992-12-03

1994-02-22

Gray, David M.

Optical: systems and elements

Prism

With reflecting surface

354286, 359704, G03B 118

Patent

active

052892212

ABSTRACT:
A zoom lens assembly for a zoom camera wherein a focal length can be varied with a front move barrel moving forward and backward from a guide barrel by the rotation of a cam barrel installed inside a camera body.
This zoom lens assembly for a zoom camera includes an adhesive cement attached to the outer circumference of the cam barrel and a steel sheet coated on the adhesive cement in order to reduce the thickness of the outer circumference of the cam barrel considerably, and concurrently to improve the mechanical strength greatly; and a shading film and a shading member attached to the outer circumference of a shutter in order to block the external light permeating via the aperture between the front move barrel and the shutter.

REFERENCES:
patent: 4506959 (1985-03-01), Hama

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