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Light irradiation device

A light irradiating device and light irradiating technology are applied to devices for coating liquid on the surface, lighting and heating equipment, surface pretreatment, etc., which can solve the problems of reduced luminous efficiency and lifespan, and achieve the effect of simple structure

Inactive Publication Date: 2016-01-27
HOYA CANDEO OPTRONICS
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, if a light-emitting diode (LED) is used as a light source, since most of the input power is converted into heat, there is a problem that the luminous efficiency and lifespan are reduced due to the heat generated by the light-emitting diode (LED), and heat treatment is also a problem.

Method used

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Embodiment Construction

[0051] Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In addition, the same symbols are added to the same or equivalent parts in the drawings, and descriptions will not be repeated here.

[0052] Figure 1 to Figure 4It is an external view illustrating the light irradiation device 1 according to the embodiment of the present invention. The light irradiation device 1 of this embodiment is a device mounted on a light source device using ultraviolet curable ink used as cut sheet offset printing ink and ultraviolet curable resin used as an adhesive such as FPD, as described later. As described above, it is arranged above the object to be irradiated, and emits linear ultraviolet light to the object to be irradiated. In this specification, the long side (line length) direction of the linear ultraviolet light emitted from the light irradiation device 1 is defined as the X-axis direction (the first direction), and the sh...

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Abstract

The invention provides a light irradiation device of simple configuration and capable of irradiating the linear light of the substantially uniform illumination. The device irradiates the light on an irradiation surface in a first direction and the linear light on a second direction orthogonal to the first direction. The device comprises a plurality of light irradiation units respectively provided with a substrate aligned with an optical axis in a third direction orthogonal to the first direction and the second direction, a plurality of light sources arranged at predetermined intervals on the surface of the substrate along the first direction, a flow path internally formed with a refrigerant that flows along the first direction, and a radiator that abuts against the back surface of the substrate. The plurality of light irradiation units are composed of N first irradiation units with the refrigerant that flows along the first direction, and N / N+1 second irradiation units with the refrigerant that flows along a direction opposite to the first direction.

Description

technical field [0001] The present invention relates to a light irradiation device for irradiating linear light, and more particularly to a light irradiation device including a plurality of light irradiation units, wherein a plurality of light sources are arranged linearly in the light irradiation unit. Background technique [0002] Conventionally, as inks for cut sheet offset printing, ultraviolet curable inks cured by irradiation with ultraviolet light have been used. In addition, ultraviolet curable resin is used as an adhesive around FPD (FlatPanelDisplay) such as liquid crystal panels and organic EL (ElectroLuminescence) panels. In the curing of such UV-curable inks and UV-curable resins, a UV irradiation device that irradiates ultraviolet light is generally used. Especially in cut-sheet offset printing and FPD applications, it is necessary to irradiate a wide irradiation area, so the irradiation line type is used. An ultraviolet irradiation device that irradiates ligh...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B05D3/06
CPCF28D15/00
Inventor 小林纪雄
Owner HOYA CANDEO OPTRONICS
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