Boresight Checking Techniques Using Second-Harmonic Generating (S HG) Crystals And Corner Cubes

Randolph W. Priddy.; Virgil G. Irelan; Dennis R Beller

doi:10.1117/12.959563

19 November 1980 Boresight Checking Techniques Using Second-Harmonic Generating (S HG) Crystals And Corner Cubes

Randolph W. Priddy., Virgil G. Irelan, Dennis R Beller

Proceedings Volume 0255, Practical Electro-Optical Instruments and Techniques; (1980) https://doi.org/10.1117/12.959563
Event: 1980 Huntsville Technical Symposium, 1980, Huntsville, United States

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.

Citation Download Citation

Randolph W. Priddy., Virgil G. Irelan, and Dennis R Beller "Boresight Checking Techniques Using Second-Harmonic Generating (S HG) Crystals And Corner Cubes", Proc. SPIE 0255, Practical Electro-Optical Instruments and Techniques, (19 November 1980); https://doi.org/10.1117/12.959563

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