Optical: systems and elements – Compound lens system – With curved reflective imaging element
Patent
1992-04-14
1993-12-28
Arnold, Bruce Y.
Optical: systems and elements
Compound lens system
With curved reflective imaging element
359727, 359730, 359858, G02B 1700
Patent
active
052744981
ABSTRACT:
An optical system for a night vision video camera having a pair of mirrors with an optical prescription providing f/2.8 speed and 50 line pairs per line millimeter resolution to an image intensifier located between the two mirrors on the common optic axis of the mirrors. The mirror first receiving the image to be viewed is an f/4 parabolic mirror and the second mirror is an f/10 spherical mirror with an external diameter of about forty percent of the diameter of the parabolic mirror (i.e., the obsuration ratio is about 0.40). The second mirror receives the reflected image of the object viewed by the night vision video camera from the first mirror and reflects the image to the image intensifier. The image may be viewed at a external view finder and can also be recorded.
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Palermiti Michael
Rios-Rivera Arturo R.
Arnold Bruce Y.
Pactylamatic, Inc.
Phan James
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