An exposure control apparatus for use with optical readers, such as bar code readers, which utilize photosensitive image sensors. An illumination signal generating circuit generates an illumination signal having a magnitude that varies in accordance with the illumination level at the image sensor. A...http://www.google.fr/patents/US6254003?utm_source=gb-gplus-shareBrevet US6254003 - Optical reader exposure control apparatus comprising illumination level detection circuitry
Optical reader exposure control apparatus comprising illumination level ...
