Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Shunji Kamijima0
Date of Patent
July 7, 2009
0Patent Application Number
119616720
Date Filed
December 20, 2007
0Patent Primary Examiner
Patent abstract
An optical device includes a refracting surface refracting light, a flat surface transmitting light, and a prism group including prism elements having at least the refracting surface. Here, the prism elements are arranged with a plurality of pitches therebetween on a straight line parallel to a reference surface on which the prism elements are disposed.
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