Title:
PHOTOIRRADIATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2014/171317
Kind Code:
A1
Abstract:
A photoirradiation device for irradiating a prescribed irradiation position on an irradiation surface with line-shaped light extending in a first direction and having a prescribed line width in a second direction perpendicular to the first direction is equipped with an optical unit for irradiating the irradiation surface with line-shaped light parallel to the first direction, and having: N number (N is an integer of 2 or higher) of light-source modules arranged in the first direction on a substrate with a first interval interposed therebetween, and positioned in a manner such that the optical axes thereof are oriented in a prescribed direction; and N number of optical elements for guiding the light from each of the light-source modules to a prescribed optical path, and positioned along the optical path of each of the light-source modules. Therein: each of the light-source modules has a light-emitting part extending in a first direction; and each of the optical elements magnifies the light emitted from the light-emitting parts at a prescribed magnification factor in the first direction, and satisfies conditional expression (1), given that the first interval is a, the length of the light-emitting parts in the first direction is b, and the prescribed magnification factor is α. α×b≥a ... (1)
Inventors:
KISHINE TSUTOMU (JP)
Application Number:
JP2014/059461
Publication Date:
October 23, 2014
Filing Date:
March 31, 2014
Export Citation:
Assignee:
HOYA CANDEO OPTRONICS CORPORATION (5-24, Hikawacho 3-chome Toda-sh, Saitama 27, 〒3350027, JP)
International Classes:
F21S2/00; F21Y101/02
Foreign References:
| JP2011222239A | 2011-11-04 | |||
| JPH01263541A | 1989-10-20 | |||
| JP2011159424A | 2011-08-18 | |||
| JPS5590912A | 1980-07-10 | |||
| JP2009148756A | 2009-07-09 |
Attorney, Agent or Firm:
ARAKI Yoshiyuki (1-41-1916, Ohyamacho Midori-ku, Sagamihara-sh, Kanagawa 46, 〒2520146, JP)
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