Infrared imaging system and method of operating

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United States of America Patent

PATENT NO 9800804
SERIAL NO

14701092

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Abstract

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A lens unit (120) shows longitudinal chromatic aberration and focuses an imaged scene into a first image for the infrared range in a first focal plane and into a second image for the visible range in a second focal plane. An optical element (150) manipulates the modulation transfer function assigned to the first and second images to extend the depth of field. An image processing unit (200) may amplify a modulation transfer function contrast in the first and second images. A focal shift between the focal planes may be compensated for. While in conventional approaches for RGBIR sensors contemporaneously providing both a conventional and an infrared image of the same scene the infrared image is severely out of focus, the present approach provides extended depth of field imaging to rectify the problem of out-of-focus blur for infrared radiation. An imaging system can be realized without any apochromatic lens.

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Patent Owner(s)

  • SONY CORPORATION

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Atif, Muhammad Stuttgart, DE 11 38
Kamm, Markus Karlsruhe, DE 35 481
Siddiqui, Muhammad Esslingen, DE 26 489
Unruh, Christian Stuttgart, DE 16 130

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