High speed infrared wide angle lens system

Details High speed infrared wide angle lens system High speed infrared wide angle lens system

G - Physics

02

B

88/106

G02B 13/14 (2006.01)

Patent

CA 1254422

INVENTOR: LUDVIK CANZEK INVENTION: HIGH SPEED INFRARED WIDE ANGLE LENS SYSTEM ABSTRACT OF THE DISCLOSURE There is disclosed an objective or compound lens with high speed and large field angle for applications using infrared radiation. Preferred embodiments of the lens system have a useful spectral bandpass in the 2 - 2.5 µm and 1.5 - 2.5 µm region. These embodiments are constructed to have low resolution, a speed up to F/0.7 and a total field angle up to 60 degrees. Two embodiments comprise only 4 spherical lenses. By simple calculations the disclosed objectives or compound lenses may be matched to lens materials for use within other ranges of the infrared spectrum as well. - 1 -

504119

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