Testing and inspecting lens by holographic means

Details Testing and inspecting lens by holographic means Testing and inspecting lens by holographic means

1975-01-09

1976-04-27

Corbin, John K.

Optics: measuring and testing

Refraction testing

Prism engaging specimen

350 35, G01B 902

Patent

active

039531295

ABSTRACT:
Processes for the accurate, rapid and inexpensive testing and inspecting of oncave and convex lens surfaces through holographic means requiring no beamsplitters, mirrors or overpower optics, and wherein a hologram formed in accordance with one aspect of the invention contains the entire interferometer and serves as both a master and illuminating source for both concave and said convex surfaces to be so tested.

REFERENCES:
patent: 3604777 (1971-09-01), Mathisen
patent: 3833301 (1974-09-01), Moore

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