Title:
光照射装置
Document Type and Number:
Japanese Patent JP6549690
Kind Code:
B2
Abstract:
Provided is a light illuminating apparatus capable of realizing a sharply increased illumination intensity distribution. The light illuminating device (100) includes: a plurality of light-emitting elements (110 to 140) that are two-dimensionally arranged on a base (105) with aligned optical axis; and an aperture member (160) having a rectangular opening (170) configured to shape light from the plurality of light-emitting elements into a rectangular shape. The plurality of light-emitting elements includes four corner light-emitting elements (110 to 140) arranged to respectively correspond to the corners of the rectangular opening of the aperture member. The corner light-emitting elements are configured such that the light emitted from the corner light-emitting elements illuminate two sides of the rectangular opening that constitute the corners corresponding to the corner light-emitting elements, but not illuminating the other two sides.
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Inventors:
Kazutaka Sato
Yasuo Kogure
Yasuo Kogure
Application Number:
JP2017253774A
Publication Date:
July 24, 2019
Filing Date:
December 28, 2017
Export Citation:
Assignee:
hoya candeo optronics Co., Ltd.
International Classes:
H01L21/027; B01J19/12; G02B5/00; G03F7/20
Domestic Patent References:
| JP2016170233A | ||||
| JP2015114633A | ||||
| JP2015022986A | ||||
| JP2011150916A |
Foreign References:
| WO2014171317A1 | ||||
| US5625738 |
Attorney, Agent or Firm:
Fukami patent office