Title:
LASER ILLUMINATION DEVICE AND PERIPHERAL MONITORING SENSOR PROVIDED WITH SAME
Document Type and Number:
WIPO Patent Application WO/2018/146889
Kind Code:
A1
Abstract:
This laser illumination device (10) is provided with a light source unit (11), a micro element lens (12), and a meniscus lens (13). The light source unit (11) emits a laser beam (B1). The micro element lens (12) expands the laser beam (B1). The meniscus lens (13) has an incident surface (13a) to which the laser beam (B1) from the micro element lens (12) is incident, and a light emission surface (13b) that is provided on the opposite side of the incident surface (13a) and that includes a convex shape, and the meniscus lens (13) has a negative power for expanding the incident laser beam (B1) from the micro element lens (12).
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Inventors:
YAMAMOTO KAZUO (JP)
Application Number:
PCT/JP2017/041207
Publication Date:
August 16, 2018
Filing Date:
November 16, 2017
Export Citation:
Assignee:
OMRON TATEISI ELECTRONICS CO (JP)
International Classes:
F21S2/00; F21V3/00; F21V5/00; F21V5/04; F21V23/00; G01S7/481; G01S17/88; F21Y115/30
Domestic Patent References:
| WO2008114502A1 | 2008-09-25 | |||
| WO2008114502A1 | 2008-09-25 |
Foreign References:
| JP2014013357A | 2014-01-23 | |||
| JP2015132666A | 2015-07-23 | |||
| JP2008159348A | 2008-07-10 | |||
| JP2011049233A | 2011-03-10 | |||
| JP2012216542A | 2012-11-08 | |||
| JP2016125925A | 2016-07-11 |
Other References:
See also references of EP 3581844A4
Attorney, Agent or Firm:
MOTOYAMA, Masafumi et al. (JP)
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