Optics: measuring and testing – By particle light scattering – With photocell detection
Patent
1996-07-17
1998-04-07
Font, Frank G.
Optics: measuring and testing
By particle light scattering
With photocell detection
356359, 356360, G01B 902
Patent
active
057370796
ABSTRACT:
An interferometer including a test plate member having a computer-generated hologram (CGH) written on the reference surface. In a preferred testing configuration, the interferometer setup includes a laser light source, diverger lens, beamsplitters, collimators, and other auxiliary optics arranged in a common-path (Fizeau-type) configuration to minimize measurement errors for testing an optical test piece with the test plate member having the computer-generated hologram. By having the computer-generated hologram written directly on the reference surface of the test plate member, the measurement of aspheric optical surfaces is made with greater precision, more efficient, and with less cost than prior art interferometers and associated methods.
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Full-aperture interferometric test of convex secondary mirrors using holographic test plates, Advanced technology Optical Telescopes, Author: J.H. Burge and D.S. Anderson, V,L. Stepp, Editor, Proc. SPIE 2199, pp. 181-192, (1994) (no month available).
Measurement of a convex secondary mirror using a holographic test plate, Author: J.H. Burge, D.S. Anderson, T. D. Milster and C. L. Vernold, Advanced technology Optical Telescopes V,L. Stepp, Editor, Proc. SPIE 2199, pp. 193-198, (1994) (no month available).
A full-aperture optical test for large convex aspheric mirror, Author J.H. Burge and D.S. Anderson Proc. Amer. Soc. for Precision Engineering, vol. 8, (ASPE, Raliegh, NC, 1993) pp. 29-32 (no month available).
Anderson David S.
Burge James H.
Font Frank G.
Merlino Amanda
Rayleigh Optical Corporation
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