Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Shao-Han Chang0
Date of Patent
August 16, 2011
0Patent Application Number
123534120
Date Filed
January 14, 2009
0Patent Primary Examiner
Patent abstract
A lighting device includes a housing, a plurality of LEDs arranged on a base of the housing, and a first optical plate positioned above the LEDs. The first optical plate includes a light input surface, a light output surface opposite to the light input surface, and a plurality of elongated arcuate protrusions formed on the light output surface. The elongated arcuate protrusions are substantially parallel to one another. The lighting device may be used as a backlight module.
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