Title:
OPTICAL SCANNING DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/244571
Kind Code:
A1
Abstract:
This optical scanning device (10) comprises: a light source (17) and a MEMS optical deflector (20) which are mounted on the same substrate; one or more light path generation mirrors (23, 25) which generate a light path which causes a light beam (Lp) emitted from the light source (17) to be incident on the MEMS optical deflector (20); and a condensing lens (19) disposed between the light source (17) and the first light path generation mirror (23). A shielding plate (41) has an elliptical aperture (42) and is attached to the light path generation mirror (23). A peripheral edge on a cross-section of the light beam (Lp) from the condensing lens (19) is cut by the elliptical aperture (42).
Inventors:
TAKAO YOSHIFUMI (JP)
SAKURAI MAKOTO (JP)
NAKAZAWA KATSUNORI (JP)
MATSUMARU NAOYA (JP)
YAMAMOTO ATSUSHI (JP)
IDRIS NAZIRUL AFHAM (JP)
SAKURAI MAKOTO (JP)
NAKAZAWA KATSUNORI (JP)
MATSUMARU NAOYA (JP)
YAMAMOTO ATSUSHI (JP)
IDRIS NAZIRUL AFHAM (JP)
Application Number:
PCT/JP2022/018037
Publication Date:
November 24, 2022
Filing Date:
April 18, 2022
Export Citation:
Assignee:
STANLEY ELECTRIC CO LTD (JP)
International Classes:
G02B26/10; G02B26/08
Foreign References:
| JP2015022158A | 2015-02-02 | |||
| JP2018116219A | 2018-07-26 | |||
| JP2019211705A | 2019-12-12 | |||
| US5347121A | 1994-09-13 | |||
| JP6734532B2 | 2020-08-05 | |||
| JP2017207630A | 2017-11-24 | |||
| JP2014056020A | 2014-03-27 | |||
| JP4512330B2 | 2010-07-28 | |||
| JP2009027088A | 2009-02-05 |
Attorney, Agent or Firm:
SATO & ASSOCIATES (JP)
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