Image intensifier for producing a color image having a color sep

Details Image intensifier for producing a color image having a color sep Image intensifier for producing a color image having a color sep

1986-05-05

1988-02-09

Groody, James J.

Electric lamp and discharge devices

Cathode ray tube

Image pickup tube

313474, 313524, 313542, 250213VT, 358 41, 358 42, 358113, 358211, H01J 3156, H04N 533, H04N 904

Patent

active

047243546

ABSTRACT:
A color separation filter arrangement for an image intensifier having separate blue, green and red filters which respectively have pass bands for visible blue light and its second order wavelengths, visible green light and its second order wavelengths, and visible red light. The blue, green and red filters are interposed individually in succession in the path of incident visible light and infrared energy to the photocathode of the image intensifier. Use of this color separation filter produces a relatively high signal-to-noise ratio at the output of the image intensifier when it is used under night sky illumination.

REFERENCES:
patent: 3812526 (1974-05-01), Tan
patent: 4016597 (1977-04-01), Dillon et al.
patent: 4085421 (1978-04-01), Gilmour
patent: 4437111 (1984-03-01), Inai et al.
Fischer, Edward, "Obtaining Color Pictures with an Image Intensifier Tube", RCA Technical Notes, RCA TN No. 556, Mar. 1964, 2 pages.
Stern, M. A., et al., "Low-Light-Level Image-Amplifying Device with Full Color Capability", Journal of the SMPTE, vol. 83, No. 3, Mar. 1974, pp. 185-189.
NHK Technical Research Laboratories, "High-Sensitivity 3 Image Intensifier Saticon Color Camera", Jun. 1979, 2 pages, (Author and Publication Unknown).
Corion Corporation, Holliston, Mass., Corion Optical Filters and Coatings, Catalog, Aug. 1985, pp. 16-21, 50-51, 84-89.

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