LIGHT-RADIATING DEVICE

Title:

LIGHT-RADIATING DEVICE

Document Type and Number:

WIPO Patent Application WO/2024/048319

Kind Code:

A1

Abstract:

Provided is a light-radiating device that can efficiently cool a light source and can be arranged near a peripheral device.　A light-radiating device according to the present invention radiates light that has a prescribed line width in a first direction and extends in a second direction that is orthogonal to the first direction at an irradiated object and comprises: a light source unit that has a substrate that is defined by the first direction and the second direction and a plurality of light sources that are aligned in the second direction on the front surface of the substrate; a heat dissipation unit that has a plurality of heat dissipation fins and is thermally coupled to the back surface side of the substrate; a first housing that houses the light source unit and the heat dissipation unit and has a first intake port that takes in air from the outside and a first exhaust port that lets out air from the inside; and a first cooling fan that is installed at at least one of the first intake port and the first exhaust port and generates cooling air that passes between the plurality of heat dissipation fins. The first intake port is formed in one end surface of the first housing in the second direction, the first exhaust port is formed in another end surface of the first housing in the second direction, and the first intake port and the first exhaust port are positioned further to the outside in the second direction than the irradiated object.

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Inventors:

KAMEYAMA MASAFUMI (JP)
WATANABE HIROAKI (JP)

Application Number:

PCT/JP2023/029801

Publication Date:

March 07, 2024

Filing Date:

August 18, 2023

Export Citation:

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Assignee:

HOYA CORP (JP)

International Classes:

B41J29/00; B41J2/01; B41J29/377; F21S2/00; F21V29/503; F21V29/508; F21V29/67; F21V29/74; F21V29/83; H01L23/467; H05K7/20; F21Y115/10

Foreign References:

JP2013125900A	2013-06-24
JP2020131642A	2020-08-31
JP2020155359A	2020-09-24

Attorney, Agent or Firm:

ARAKI Yoshiyuki (JP)

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