Is a
Patent attributes
Current Assignee
0
Patent Jurisdiction
Patent Number
Patent Inventor Names
Eun Hyung Cho0
Date of Patent
September 2, 2008
0Patent Application Number
110759160
Date Filed
March 10, 2005
0Patent Primary Examiner
Patent abstract
An optical detector is provided. The optical detector allows an auto-convergence control to be effectively made by cutting off external light incident to an optical sensor for use in the auto-convergence of a projection TV. The optical detector includes optical sensors and external light cut-off units. The optical sensors are positioned in an inside of the projection TV to receive test signals. The external light cut-off units are protruded to a direction to which the test signals are incident.
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