Lens holding device for holding a lens system and method for mak

Details Lens holding device for holding a lens system and method for mak Lens holding device for holding a lens system and method for mak

1995-06-29

1997-03-18

Ben, Loha

Optical: systems and elements

Lens

With support

359811, 359820, G02B 702

Patent

active

056128266

ABSTRACT:
A lens holding device and a lens system equipped with the holding device are simple in structure and low in cost. The lens holding device includes a cylindrical lens barrel that is structured as one body with a single plastic lens and has an inside diameter larger than the effective diameter of the plastic lens. A holding ring, made from an impermeable substance, holds at least one lens that has been inserted into the lens barrel and fixes the position of the lens. The holding ring covers the edge surface of the lens barrel.

REFERENCES:
patent: 2954461 (1960-09-01), Tucker
patent: 3784287 (1974-01-01), Grey
patent: 4662717 (1987-05-01), Yamada et al.
patent: 4787724 (1988-11-01), Kudo et al.

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