Ultra small spot generator

Details Ultra small spot generator Ultra small spot generator

2005-02-15

2005-02-15

Turner, Samuel A. (Department: 2877)

Optics: measuring and testing

By light interference

Having partially reflecting plates in series

Reexamination Certificate

active

06856406

ABSTRACT:
An interferometer is used to provide control to the intensity profile and position of a spot of light. In this invention, each light ray from a spectral source is regenerated into a plurality of light rays by an interferometer. These rays are focused by a lens into a constructive interference fringe on a focal plane. A voltage across the interferometer can change the index of reflection of the interferometer thus defines the position of the constructive interference fringe on the disk.

REFERENCES:
patent: 3506334 (1970-04-01), Korpel
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patent: 3603685 (1971-09-01), Heflinger
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patent: 4789978 (1988-12-01), Shikama et al.
patent: 5071253 (1991-12-01), Chase
patent: 5119454 (1992-06-01), McMahon
patent: 5587983 (1996-12-01), Bailey
patent: 5646920 (1997-07-01), Raczynski
patent: 6366547 (2002-04-01), Chase
Principles of Optics, Born et al, 1980, pp 323-333, 341-347, 360-367.*
S. Tolansky, Jun. 18, 1943, Philosophical Magazine, vol. 34, p. 555.

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