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US 6,421,187 B1Granted
Laser illumination arrangement for a cathode ray tube
AssigneeKoninklijke Philips Electronics N. V.
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.
Claims2
A method of manufacturing a cathode ray tube in which, in a process step, a photosensitive layer on a display window of or for a cathode ray tube is illuminated by light from a laser beam, characterized in that the laser beam, before reaching the photosensitive layer, is guided through a beam homogenizer.
Dependencies are inferred from the claim text.