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Proceedings Paper

Boresight Checking Techniques Using Second-Harmonic Generating (S HG) Crystals And Corner Cubes
Author(s): Randolph W. Priddy.; Virgil G. Irelan; Dennis R Beller
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Paper Abstract

A simple, low cost, reliable and non-electronic boresight tester was developed for use with military laser designators and range finders. Boresight testing is accomplished by attaching this device to the output end of a laser designator and checking the position of crossed green lines projected on the reticle pattern of the sighting telescope. The device uses a second harmonic generation (SHG) crystal and a corner cube reflector to convert a small portion of the infrared energy to visible green energy. This green energy forms a cross pattern imaged on the reticle by the objective lens of the laser systems under test. Cesium dihydrogen arsenate (CDA) was chosen as the best SHG for this application. Initial tests have shown the green cross pattern to be clearly visible and sufficiently bright far below the eye-safe level.

Paper Details

Date Published: 19 November 1980
PDF: 4 pages
Proc. SPIE 0255, Practical Electro-Optical Instruments and Techniques, (19 November 1980); doi: 10.1117/12.959563
Show Author Affiliations
Randolph W. Priddy., U.S. Army Missile Command (United States)
Virgil G. Irelan, U.S.Army (United States)
Dennis R Beller, International Laser Systems (United States)

Published in SPIE Proceedings Vol. 0255:
Practical Electro-Optical Instruments and Techniques
Robert L. Kurtz, Editor(s)

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