Fabrication of aspheric surfaces through controlled deformation

Details Fabrication of aspheric surfaces through controlled deformation Fabrication of aspheric surfaces through controlled deformation

1990-06-11

1992-02-18

Arnold, Bruce Y.

Optical: systems and elements

Mirror

Including specified control or retention of the shape of a...

359868, 359869, G02B 7185

Patent

active

050899155

ABSTRACT:
An aspheric mirror, for example in the form of an off-axis parabolic mirror or a toric mirror, that includes a first element having a front surface which defines a spherical reflector and a spaced apart rear surface. The spherical reflector includes a constant radius of curvature, an X-axis with an X-axis radius of curvature and a Y-axis with a Y-axis radius of curvature. The first element possesses a first rigidity factor. A second element includes a front surface sized to mate with the rear surface of the first element along an interface zone. The second element possesses a second rigidity factor. An interface contour device produces a differential contour within the interface zone between the first and second elements. The interface contour device is aligned to modify the X-axis radius of curvature of the shperical reflector without significantly modifying the Y-axis radius of curvature. A compression device compresses the first and second elements together to deflect the first element relative to the second element to modify the X-axis radius of curvature without substantially modifying its Y-axis radius of curvature to produce an aspheric mirror.

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patent: 4932768 (1990-06-01), Gobeli
Brunner, "Process for Obtaining a Convex Surface", IBM Tech. Disc. Bulletin, vol. I, No I, p. 22, Jun. 1958.

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