Television – Monitoring – testing – or measuring – Testing of camera
Reexamination Certificate
2011-05-24
2011-05-24
Kostak, Victor (Department: 2422)
Television
Monitoring, testing, or measuring
Testing of camera
C362S005000, C362S016000
Reexamination Certificate
active
07948519
ABSTRACT:
An intelligent light source for use with the test of a digital camera module provides a plurality of shapes of light. A fast light pulse is created with turn-on and turn-off transitions less than or equal to one microsecond. Other waveform shapes comprise a ramp and a sinusoid, and all shapes can be made to occur once or repetitively. The magnitude of the light has a range from 0.01 LUX to 1000 LUX, and the ramp has a ramp time that has a range from microseconds to 100 ms. The light comprises of a plurality of colors created by serial connected strings of LED devices, where the LED devices in a string emit the same color. The light emanating from the light source is calibrated using a photo diode and the control of a tester by adjusting offset voltages of a DAC controlling a current through the LED strings.
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Huettmann Dirk
Knoedgen Horst
Ackerman Stephen B.
Digital Imaging Systems GmbH
Kostak Victor
Saile Ackerman LLC
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