Low-light-level color camera with one CCD

Hans W. Funk; Joachim M. K. Ehrhardt

doi:10.1117/12.19466

1 July 1990 Low-light-level color camera with one CCD

Hans W. Funk, Joachim M. K. Ehrhardt

Proceedings Volume 1243, Electron Image Tubes and Image Intensifiers; (1990) https://doi.org/10.1117/12.19466
Event: Electronic Imaging: Advanced Devices and Systems, 1990, Santa Clara, CA, United States

Abstract

For full swing commercially available 1/2" and 2/3" imaging sensors in standard video cameras call for an illumination density of approximately 0.5 to 1.0 lx at the input. Improved sensitivities can be achieved by use of image intensifier tubes, coupled to the CCD either fiberoptically or by relay lens. Such configurations are wellknown at black and white low light level TV cameras. Three-channel color cameras with three CCDs have to be equipped with three image intensifier tubes intensifying each of the color component images (RGB) absolutely free of geometric distortions. Such 3-channel low light level cameras are complex in design and expensive. The paper presents a low light level CCD color camera with only one chip and only one image intensifier tube with an excellent cost/performance ratio. An absolutely distortion-free proximity focus image intensifier diode PROXIFIER R of high resolution with a color stripe filter beneath its photocathode is fiberoptically coupled to a CCD with such a precision that the position of the filter-stripes coincides with that of the vertical pixel rows of the CCD.

Citation Download Citation

Hans W. Funk and Joachim M. K. Ehrhardt "Low-light-level color camera with one CCD", Proc. SPIE 1243, Electron Image Tubes and Image Intensifiers, (1 July 1990); https://doi.org/10.1117/12.19466

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available