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US 2001/0055131 A1Published application
Optical element and apparatus
OwnerHiroshi Suganumainventor
Life of this patent
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Abstract
An optical element comprises a volume hologram, converts an aspect ratio of an incident beam, and emits it as an outgoing beam.
Claims8
An optical element comprising a volume hologram for emitting an outgoing beam by converting an aspect ratio of an incident beam.
An optical apparatus comprising a light source for generating a light beam with a specified aspect ratio, an optical element comprising a volume hologram, and a display screen illuminated by a beam emitted from said light source, wherein
- said optical element converts an aspect ratio of an incident beam generated from said light source and irradiated to said optical element, emits a reproduction beam, and illuminates said display screen using said reproduction beam with the converted aspect ratio.
Dependencies are inferred from the claim text.