Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Chih-Ming Lai0
Date of Patent
December 7, 2010
0Patent Application Number
122425750
Date Filed
September 30, 2008
0Patent Primary Examiner
Patent abstract
An exemplary illuminating device includes a light guide member and a light source. The light guide member includes an annular main body and at least one light incident portion extending from and optically coupled to the annular main body. The light source is optically coupled to the at least one light incident portion. The annular main body has a light emitting surface. The annular main body has a plurality of micro protrusions formed on the light emitting surface.
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