Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Yutaka Watanabe0
Date of Patent
March 13, 2007
0Patent Application Number
110620240
Date Filed
February 18, 2005
0Patent Primary Examiner
Patent abstract
An illumination apparatus for illuminating a target surface using light includes a light source that emits the light, a reflection integrator that forms plural secondary light sources using the light from the light source, and an optical unit that differentiates Helmholtz-Lagrange invariants in two orthogonal directions with respect to the light incident upon the reflection integrator.
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