Optical: systems and elements – Having significant infrared or ultraviolet property – Lens – lens system or component
Patent
1992-04-29
1993-05-25
Lerner, Martin
Optical: systems and elements
Having significant infrared or ultraviolet property
Lens, lens system or component
359357, 359673, 359828, 359829, G02B 1314, G02B 1512
Patent
active
052145328
ABSTRACT:
An accessory lens for a far-infrared thermal imager which is quickly insted or removed to double the range. The accessory uses two or three element with alternating dielectric constants and combinations of spherical and aspherical surfaces.
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Hall John M.
Spande Robert A.
Holford John E.
Lane Anthony T.
Lee Milton W.
Lerner Martin
The United States of America as represented by the Secretary of
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