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Illumination device
 
: Schmidberger, E.; Berner, P.

:
Frontpage ()

DE 1990-4011842 A: 19900412
DE 1990-4011842 A: 19900412
WO 9116786 A1: 19911031
DE 4011842 C2: 19930107
H04N0005
Deutsch
Patent, Elektronische Publikation
Fraunhofer IPA ()

Abstract
The description refers to an illumination device for objects which are filmed by a camera whose image signal is presented to an image processing device and which has at least one CCD image sensor, comprising a light source which controls a control unit by means of pulses. The invention is characterized by the fact that the light source has a light emitting diode array whose diodes receive at least one pulse of variable width selectively from the control unit during each image period.

: http://publica.fraunhofer.de/dokumente/PX-5963.html