Aspheric optical test plate assembly

Details Aspheric optical test plate assembly Aspheric optical test plate assembly

1988-03-28

1990-02-20

Bovernick, Rodney B.

Optics: measuring and testing

Range or remote distance finding

With photodetection

350631, 356359, 2483161, 65 39, 51216LP, G02B 700

Patent

active

049021028

ABSTRACT:
An aspheric optical test plate assembly is disclosed which permits a qualitative comparison to be made between the surface contour of a known area of an aspheric optical element and the surface contour of an area on the aspheric optical element which should be equivalent to the contour of the known area. The aspheric optical test plate assembly includes an optical test plate in the shape of a segment of a spherical element and means for stressing the element to make its contour approximate the contour of an aspheric surface.

REFERENCES:
patent: 60109 (1866-11-01), Woodward
patent: 413021 (1889-10-01), Buhring
patent: 509379 (1893-11-01), Ingram
patent: 2794368 (1957-06-01), Kosa
patent: 3511679 (1970-05-01), Warren
patent: 3514776 (1970-05-01), Mulready
patent: 4422723 (1983-12-01), Williams, Jr. et al.
patent: 4457625 (1984-07-01), Greenleaf et al.
patent: 4725144 (1988-02-01), Nelson et al.
patent: 4734557 (1988-03-01), Alfille et al.

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