Patent
1988-08-08
1989-11-21
Arnold, Bruce Y.
350172, 350174, 350397, G02B 518
Patent
active
048817961
ABSTRACT:
A multi-spectral reticle projector coaxially projects two separate reticles at different wavelengths through a single aperture by using a lens system including a dichroic lens disposed coaxially between the two reticles. The visible light is reflected by the mirror and passes through the lens system twice, while the infrared light passes through the mirror and passes through the lens system once. At the output of the lens system, the two reticle images are superimposed, collinated and coaxial.
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Brown Robert J.
Michika David
Arnold Bruce Y.
Ford Aerospace Corporation
Radlo Edward J.
Shafer R. D.
Weissenberger Harry G.
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