Method of assessing a surface figure of an optical element

Details Method of assessing a surface figure of an optical element Method of assessing a surface figure of an optical element

1993-09-20

1994-11-01

Rosenberger, Richard A.

Optics: measuring and testing

Lens or reflective image former testing

For optical transfer function

359727, 356359, G01B 900

Patent

active

053611292

ABSTRACT:
A novel method for assessing a surface figure of an optical element. The method preferably comprises subjecting the optical element to a classical autocollimation testing procedure for ascertaining its surface figure relative to a predetermined ideal. The testing procedure is characterized by a step of modifying the classical optical testing procedure, so that the optical element under test simulates a paraboloid.

REFERENCES:
patent: 3518004 (1970-06-01), Brewer
patent: 3736060 (1973-05-01), Mayo
patent: 4571036 (1986-02-01), Grebelein et al.
patent: 4718753 (1988-01-01), Grebelein

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