Optical detection system

Radiant energy – Miscellaneous

Reissue Patent

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Details

C089S001110, C250S342000, C356S141100

Reissue Patent

active

RE040927

ABSTRACT:
The present invention pertains to radiant energy systems and more particularly to systems exhibiting the retroreflection principle wherein the system comprises a focusing means and a surface exhibiting some degree of reflectivity positioned near the focal plane of the device, and wherein incident radiation falling within the field-of-view of said system is reflected back in a direction which is parallel to the incident radiation. The present invention has great applicability in military optical system applications for detecting the presence of an enemy employing surveillance equipment and for neutralizing this surveillance capability.

REFERENCES:
patent: 2610922 (1952-09-01), Beck
patent: 2873381 (1959-02-01), Lauroesch
patent: 2906883 (1959-09-01), Hansen
patent: 2970310 (1961-01-01), Edmond
patent: 3002419 (1961-10-01), Vyce
patent: 3020792 (1962-02-01), Kingsbury
patent: 3025764 (1962-03-01), McKenzie
patent: 3098932 (1963-07-01), Laudon
patent: 3215842 (1965-11-01), Thomas
patent: 3345835 (1967-10-01), Nickell et al.
patent: 3405025 (1968-10-01), Goldman
patent: 3443072 (1969-05-01), Mori
patent: 4112300 (1978-09-01), Hall et al.
patent: 6707052 (2004-03-01), Wild et al.
Francis Weston Sears, “Principles Of Physics Series,” Optics, Third Edition, Fifth printing, Addison-Wesley Publishing Company, Inc., Reading, MA, USA, Apr. 1958, pp. 34-39 and 89-91.
“Sheeting and Tape Reflective; Nonexposed Lens, Adhesive Backing,”Federal Specification, FSC 9390, L-S-300, Sep. 7, 1965, pp. 1-15, Superseding CCC-S-00320 (Army-MO), Nov. 18, 1963, including the requirements of MILI-R-13689A, Jan. 10, 1956.
“Reflectorized Sheeting, Adhesive (Retro-Reflective),”Military Specification, FSC 8305, MIL-R-13689A, Jan. 10, 1956, Superseding MIL-R-13689 (CD), Oct. 4, 1954.
Electronics, Nov. 10, 1961, pp.81-85.

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