Title:
OBJECT DETECTING APPARATUS AND INFORMATION ACQUIRING APPARATUS
Document Type and Number:
WIPO Patent Application WO/2012/005058
Kind Code:
A1
Abstract:
Disclosed is an information acquiring apparatus which can detect, with a compact configuration, deterioration of a diffraction optical element. Also disclosed is an object detecting apparatus having the information acquiring apparatus mounted thereon. The information acquiring apparatus (1) is provided with a laser light source (111) which outputs laser light having a wavelength of approximately 830 nm, a polarization beam splitter (PBS) (113), a 1/4 wavelength plate (114), a DOE (116), and a PD (117). The DOE (116) irradiates a target region with laser light in predetermined dot patterns. The PD (117) receives a part of the laser beam diffracted and reflected by the DOE (116).
Inventors:
UMEDA Katsumi (5-5, Keihan-Hondori 2-chome, Moriguchi-sh, Osaka 77, 〒5708677, JP)
楳田 勝美 (〒77 大阪府守口市京阪本通２丁目５番５号三洋電機株式会社内 Osaka, 〒5708677, JP)
楳田 勝美 (〒77 大阪府守口市京阪本通２丁目５番５号三洋電機株式会社内 Osaka, 〒5708677, JP)
Application Number:
JP2011/061316
Publication Date:
January 12, 2012
Filing Date:
May 17, 2011
Export Citation:
Assignee:
SANYO Electric Co., Ltd. (5-5 Keihan-Hondori 2-chome, Moriguchi-shi Osaka, 77, 〒5708677, JP)
三洋電機株式会社 (〒77 大阪府守口市京阪本通２丁目５番５号 Osaka, 〒5708677, JP)
UMEDA Katsumi (5-5, Keihan-Hondori 2-chome, Moriguchi-sh, Osaka 77, 〒5708677, JP)
三洋電機株式会社 (〒77 大阪府守口市京阪本通２丁目５番５号 Osaka, 〒5708677, JP)
UMEDA Katsumi (5-5, Keihan-Hondori 2-chome, Moriguchi-sh, Osaka 77, 〒5708677, JP)
International Classes:
G01B11/00; G01M11/00; G02B5/18
Attorney, Agent or Firm:
KADOYA Hiroshi (5-5, Keihan-Hondori 2-chome, Moriguchi-sh, Osaka 77, 〒5708677, JP)
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Claims:
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