Boots – shoes – and leggings
Patent
1986-12-17
1988-01-12
Arnold, Bruce Y.
Boots, shoes, and leggings
350370, 364800, G02B 2710
Patent
active
047187492
ABSTRACT:
A phase conjugate interferometer includes a source of coherent light and a first beam splitter for dividing the coherent light into a transmitted portion and a reflected portion. A second beam splitter is positioned to divide the transmitted portion into an outgoing transmitted beam and an outgoing reflected beam, with the outgoing transmitted beam oriented to pass through the first image and the outgoing reflected beam oriented to pass through the second image. A phase-conjugate reflector is positioned to reflect the outgoing transmitted beam as a first incoming beam and the outgoing reflected beam as a second incoming beam. The incoming beams are directed toward the second beam splitter, which divides the incoming beams into a first combined beam and a second combined beam. The second combined beam is directed toward the first beam splitter, which divides the second combined beam into a third combined beam and a transmitted beam. With this arrangement, the first combined beam contains the difference between the intensities of the first and second images and the third combined beam contains the sum of the intensities of the first and second images.
REFERENCES:
patent: 4025195 (1977-05-01), Ebersole et al.
patent: 4124278 (1978-11-01), Grinberg et al.
patent: 4212536 (1980-07-01), Bencze et al.
patent: 4320966 (1982-03-01), Reytblatt
patent: 4372649 (1983-02-01), Kellie
Indebetouw, et al., Real-Time Incoherent Subtraction of Irradiance, Applied Optics, vol. 19, pp. 1218-1219, (1980).
Ja, Real-Time Image Subtraction in Four-Wave Mixing with Photorefractive Bi.sub.12 GeO.sub.20 Crystals, Optics Communications, vol. 42, pp. 377-380 (1982).
Patorski, Subtraction and Addition of Optical Signals Using a Double-Grating Shearing Interferometer, Optics Communications, vol. 29, pp. 13-16 (1979).
Yu, et al., Incoherent Image Addition and Subtraction: A Technique, Applied Optics, vol. 18, pp. 2705-2707 (1979).
Chiou Arthur E.
Yeh Pochi A.
Arnold Bruce Y.
Deinken John J.
Hamann H. Fredrick
Malin Craig O.
Rockwell International Corporation
LandOfFree
Phase-conjugate interferometric coherent image subtraction does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Phase-conjugate interferometric coherent image subtraction, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Phase-conjugate interferometric coherent image subtraction will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-918060