Projection type lens meter

Details Projection type lens meter Projection type lens meter

1978-12-20

1981-01-27

Corbin, John K.

Optics: measuring and testing

Lens or reflective image former testing

For optical transfer function

G01B 900

Patent

active

042472008

ABSTRACT:
A projection type lens meter comprises a projection lens system consisting of a positive lens group and a negative lens group mutually separated by a large air gap, wherein the projecting light beam having passed through said two lens groups is made to pass through said air gap between said lens groups.

REFERENCES:
patent: 3958257 (1976-05-01), Johnson
Smith, Warren J., Modern Optical Engineering, McGraw Hill, New York, 1966, p. 41.
Topcon--Projection Lensmeter, Model LMP-2, published by Tokyo Kogaku Kikai K.K., Tokyo, Japan.

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