OPTICAL DEVICE AND ILLUMINATION DEVICE
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United States of America
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Jan 16, 2020
app pub date -
Jun 26, 2019
filing date -
Jun 26, 2019
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Abstract
An optical device comprises: at least one first reflecting surface disposed so as to reflect first light that has a light distribution having an optical axis parallel to a first axis, to an arc-shaped first region surrounding the first axis; and a second reflecting surface and a third reflecting surface that are disposed such that the second reflecting surface and the third reflecting surface meet each other on the first axis, and such that the first reflecting surface is disposed between the second reflecting surface and the third reflecting surface.
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