PHOTOIRRADIATION DEVICE

WIPO Patent Application WO/2014/171317

A1

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)

KISHINE TSUTOMU (JP)

JP2014/059461

October 23, 2014

March 31, 2014

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HOYA CANDEO OPTRONICS CORP (JP)

F21S2/00; F21Y101/02

JP2011222239A	2011-11-04
JPH01263541A	1989-10-20
JP2011159424A	2011-08-18
JPS5590912A	1980-07-10
JP2009148756A	2009-07-09

ARAKI YOSHIYUKI (JP)
Yoshiyuki Araki (JP)

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