OPTICAL SCANNING DEVICE, PROJECTION DEVICE, AND DISPLAY DEVICE
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United States of America Patent
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Jan 11, 2018
app pub date -
Jun 28, 2017
filing date -
Jul 6, 2016
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Abstract
An optical scanning device includes a light source, a scanning member, and an incident optical system. The scanning member two-dimensionally scans a scanning area with the deflected light beam in a first direction and a second direction perpendicular to the first direction. The incident optical system guides the emitted light beam to the scanning member, the incident optical system including the light source. The scanning area includes a first area and a second area surrounding the first area. When the scanning area is viewed from a side of the scanning member, at least a part of the incident optical system is disposed in an area of the second area that overlaps one of two divided areas of the scanning area. The two divided areas are divided by a line segment parallel to the first direction,
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