Apparatus for measuring holographic lens aberration parameters

Details Apparatus for measuring holographic lens aberration parameters Apparatus for measuring holographic lens aberration parameters

1976-08-19

1978-03-07

Corbin, John K.

Optics: measuring and testing

Lens or reflective image former testing

For optical transfer function

250550, 356111, G01B 900

Patent

active

040777219

ABSTRACT:
An instrument for measuring various and sundry parameters that are analog to the aberrations that may exist in holographic lenses and other energy diffraction apparatus is disclosed as containing: a laser energy source; a pair of masks for controlling precisely the path of the light from said laser energy source, so that it may be used as a reference parameter; a rotatable mounting table for holding the holographic lens being tested in an appropriate position in the path of said reference laser light path; a microscope positioned to receive predetermined laser light rays that have been diffracted by the holographic lens being tested; indicia to measure the X, Y and Z axes distances between that point on the holographic lens being tested where the aforesaid laser light path passes therethrough and a given point position on or with respect to said microscope; and a support bench upon which all of the aforesaid elements may be mounted, so that their respective relative positions may be controlled in such manner that they form a unique geometrical configuration and combination.

REFERENCES:
patent: 2042565 (1936-06-01), Tillyer
patent: 3790280 (1974-02-01), Heinz et al.
patent: 3832066 (1974-08-01), Cornsweet
patent: 3880525 (1975-04-01), Johnson
patent: 3938892 (1976-02-01), Klingman
patent: 3954337 (1976-05-01), Ragland
patent: 4009965 (1977-03-01), Pryor

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