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1985
Journal Article
Titel
Light valve projector for HDTV with 1600 lm light output using a 400 W lamp
Abstract
Describes an improved light-valve system for color picture projection. An increased resolution is achieved by using finer carrier gratings regarding the deformation behaviour of the control layer. The efficiency of the light-valve is amended by applying cylindric lenses for illumination and use of interference filter stripes in the dark-filter system. In addition a new projection lamp with increased electro-optic efficiency is used. The concept for a projector with HDTV-capability is presented, whereby the total light output is 1600 lm by using a 400 W lamp.
Language
German
Tags
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colour television
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colour television receivers
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electro-optical devices
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lamps
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lenses
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optical filters
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optical projectors
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television systems
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HDTV
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1600 lm
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light output
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400 w
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lamp
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light-valve system
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color picture projection
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finer carrier gratings
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deformation behaviour
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control layer
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cylindric lenses
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illumination
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interference filter stripes
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dark-filter system
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electro-optic efficiency