Film scanner illumination system having an automatic light contr

Details Film scanner illumination system having an automatic light contr Film scanner illumination system having an automatic light contr

1990-12-03

1992-10-13

Razavi, Michael

Facsimile and static presentation processing

Facsimile

Recording apparatus

358 54, 358209, H04N 5253

Patent

active

051555964

ABSTRACT:
An illumination system for a film scanner is disclosed which comprises a light source and optics for providing a line of light on a film. Light transmitted through the film is imaged onto photosensor elements such as CCD arrays. In order to obtain a high quality electronic image from various types of film, an integrating cylinder is used to provide a line of diffuse light on the film, and light delivered to the integrating cylinder is controlled in accordance with the particular type of film being scanned and the operating conditions of the apparatus.

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