Title:
LIGHT IRRADIATING DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/188264
Kind Code:
A1
Abstract:
This light irradiating device (100) comprises: a plurality of light sources (101a, 101b) respectively emitting light of wavelengths and optical axes that are different from one another, a light guide path (102) guiding the lights from the plurality of light sources (101a, 101b) through monoaxial optics, and a lens (103) provided between the light guide path (102) and the plurality of light sources (101a, 101b), that widens the incidence angle range of light emitted from the plurality of light sources (101a, 101b) and causes light to be incident on one end of the light guide path (102). In addition, between the lens (103) and the plurality of light sources (101a, 101b), a light shielding part is provided that has a predetermined size on the optical axis of the light guide path (102) for preventing light being incident on the light guide path (102).
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Inventors:
KITADA NATSUKO (JP)
KAWADA TAKAHIRO (JP)
NOZAKI TAKAAKI (JP)
TAKEISHI TAKAAKI (JP)
KAWADA TAKAHIRO (JP)
NOZAKI TAKAAKI (JP)
TAKEISHI TAKAAKI (JP)
Application Number:
PCT/JP2019/010108
Publication Date:
October 03, 2019
Filing Date:
March 12, 2019
Export Citation:
Assignee:
CITIZEN WATCH CO LTD (JP)
International Classes:
F21V8/00; A61B1/24; A61C19/04; F21L4/00; F21V23/00; G01N21/64; G02B6/42; A46B15/00; F21W131/202; F21Y113/10; F21Y115/10; F21Y115/30
Domestic Patent References:
| WO2016140199A1 | 2016-09-09 |
Foreign References:
| JP2012003161A | 2012-01-05 | |||
| JP2012231834A | 2012-11-29 | |||
| JP2007248581A | 2007-09-27 |
Attorney, Agent or Firm:
SAKAI, Akinori (JP)
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