Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
July 23, 2019
Patent Application Number
14971565
Date Filed
December 16, 2015
Patent Citations Received
Patent Primary Examiner
Patent abstract
A flashlight device includes a light source and a flash lens. A microstructure film with a microstructure pattern is disposed on the flash lens. After plural light beams from the light source pass through the flash lens and the microstructure film, a flash of light is provided to an environment. The plural light beams are shaped by the at least one microstructure film while the plural light beams pass through the microstructure film, and/or a spectrum distribution of the plural light beams is modulated after the plural light beams pass through the microstructure film.
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