Television – Camera – system and detail – With object or scene illumination
Reexamination Certificate
2005-02-15
2005-02-15
Moe, Aung (Department: 2612)
Television
Camera, system and detail
With object or scene illumination
C348S370000
Reexamination Certificate
active
06856356
ABSTRACT:
The present invention relates to a camera (102) with strobe flash illumination (116) for capturing an image of an object (6), and to a document scanning system (101) and method of using such a camera (102) to capture an image of a document (6). The camera (102) comprises an image capture means, an objective lens (114) with a field of view (118) to image optical radiation (119) from an object plane (8) onto the image capture means (52), a strobe flash (116) for illuminating the object plane (8), electronic pulse circuitry to pulse the strobe flash (116) at a rate which is sufficiently quick that the illumination appears to a user of the camera (102) to be substantially steady owing to persistence of vision, and a shutter means (104) to synchronize the capture of one or more images by the image capture means, each image being captured with at least one pulse from the strobe flash. The shutter means (104) is adapted to capture images at a rate substantially below the rate at which the strobe flash (16, 116) is pulsed.
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“Stroboscope Light”.Elektor ElectronicsNo. 221. Apr. 20, 1994, Dorchester, Great Britain. pp. 62-66.
Hewlett--Packard Development Company, L.P.
Moe Aung
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