Laser illumination arrangement for a cathode ray tube
AssigneeU.S. Philips Corporation
InventorsTewe Hiepke Heemstra, Geert Jan Van Der Meer
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Abstract
A photosensitive layer of or for a cathode ray tube is illuminated by means of a laser illumination arrangement. The laser illumination arrangement comprises a homogenizer which serves to reduce the coherence of the laser beam.
Claims6
A laser illumination arrangement for illuminating a photosensitive layer in the course of the manufacture of a cathode ray tube, said laser illumination arrangement comprising a laser and an optical imaging arrangement for imaging laser light onto the photosensitive layer which is applied to a display window of or for a cathode ray tube, characterized in that the laser illumination arrangement comprises a beam homogenizer between the laser and the optical imaging arrangement or as a part of the optical imaging arrangement.
Dependencies are inferred from the claim text.