Optical: systems and elements – Compound lens system
Patent
1997-04-16
1999-06-01
Spyrou, Cassandra
Optical: systems and elements
Compound lens system
359363, 359353, 359405, 359407, 359410, 359418, 359672, 250214VT, H01J 3150
Patent
active
059093099
ABSTRACT:
A method and apparatus to correct and eliminate optical anomalies and geometrical distortions in an intensified imaging system, specifically a night vision system. An image is received from the original objective lens assembly of an unintensified imaging system which, presumably, has been designed to produce images sized in accordance with the image sensor size of its host camera or camcorder. The format matching lens assembly receives the image from the original objective lens system and magnifies it so that it is output onto the entire circular active area of a mechanically inserted image intensifier. Having received an image across its entire circular active area, the image intensifier is able to amplify or intensify the image using the received light without creating any optical distortions. Once intensified without distortion, the image must be still further modified to fit its original format size. The relay lens assembly receives the intensified image from the mechanically attached image intensifier and demagnifies it so that it is output onto the entire circular active area of the lens of the host camera or host camcorder where it can be viewed with improved resolution and recorded without the presence of any optical distortions. Also, by receiving an image across its entire circular active area, the sensor, a CCD chip or like means inside a conventional camera or camcorder, is better able to optimize the resolution of the viewed object or activity.
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Di Taranto Gerard
Roselli Michael
Vallese Frank J.
Electrophysics Corp.
Sikd-er Mohammad Y.
Spyrou Cassandra
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