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Illumination device and photocuring material processing device

A technology of a light irradiating device and a reflecting part, which is applied in the directions of lighting devices, lighting devices, fixed lighting devices, etc., can solve the problems of difficulty in sufficient suppression and the like

Inactive Publication Date: 2016-04-06
USHIO DENKI KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, in this inkjet printer, it is necessary to separate the light irradiation device from the nozzle head very significantly
In addition, considering the reflected light on the recording medium, it is difficult to sufficiently suppress the light irradiated to the ejection part of the head by simply tilting the light irradiation device.

Method used

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  • Illumination device and photocuring material processing device
  • Illumination device and photocuring material processing device
  • Illumination device and photocuring material processing device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0094] according to figure 1 and figure 2 With the structure shown, the light irradiation apparatus 1 of the following specification was produced.

[0095] The material of the substrate 21 in the light source unit 20 is aluminum nitride, and the size (X×Y×Z) is 105 mm×20 mm×1.0 mm. The light-emitting element 25 is a light-emitting diode with a peak wavelength of 395 nm, an output of 700 mW, and a size (X×Y×Z) of 1.0 mm×1.0 mm×0.1 mm. The number of light emitting elements 25 is 25, and the arrangement pitch is 4.0 mm. The sealing lens 22 is made of silicone resin and has a radius of 1.1 mm.

[0096] The material of the window member 18 is heat-resistant glass, and the size (X×Y×Z) is 104 mm×15 mm×2.0 mm. The separation distance between the light incident surface of the window member 18 and the light emitting surface 25 a of the light emitting element 25 in the Z-axis direction was 2.9 mm.

[0097] The inclination angle α of the reflection surface 31 of the first reflectio...

Embodiment 2

[0105] In Example 1, the inclination angle α of the reflection surface 31 of the first reflection member 30 relative to the reference plane N was set to 45°, and the inclination angle β of the reflection surface 36 of the second reflection member 35 relative to the reference plane N was set to 45°. A light irradiation device having the same structure as in Example 1 except for 70° (≥α+θmax / 2) was used. The maximum emission angle θmax of the light emitting element 25 in this light irradiation device is 45°.

[0106] As a result of analyzing the incident angle γ of the light component emitted from the light source unit 20 in the Y-axis negative direction at the maximum emission angle θmax to the irradiated surface W in the light irradiation device through the window member 18, it was confirmed that γ=+5° . That is, it was confirmed that the reflected light of the second reflection member 35 does not include a light component directed in the Y-axis negative direction.

Embodiment 3

[0111] In Example 1, the inclination angle α of the reflection surface 31 of the first reflection member 30 relative to the reference plane N was set to 80°, and the inclination angle β of the reflection surface 36 of the second reflection member 35 relative to the reference plane N was set to 80°. Except for 85° (≥α+θmax / 2), a light irradiation device having the same structure as in Example 1 was used. The maximum emission angle θmax of the light emitting element 25 in this light irradiation device was 10°.

[0112] As a result of analyzing the incident angle γ of the light component emitted from the light source unit 20 in the Y-axis negative direction at the maximum emission angle θmax to the irradiated surface W in the light irradiation device through the window member 18, it was confirmed that γ=0°. That is, it was confirmed that the reflected light of the second reflection member 35 does not include a light component directed in the Y-axis negative direction.

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Abstract

Provided are an illumination device and a photocuring material processing device. The devices prevent or restrain light from illuminating on adjacent other positions, and can realize miniaturization of the integrated devices. Supposing a XYZ three-dimensional orthogonal coordinate system in which an axis extending along a vertical direction is a Z axis, a light source portion is formed by arranging and configuring a plurality of light-emitting components on a same plane, with the centers of lighting surfaces being on the X axis. An XZ plane which includes the centers of a plurality of lighting surfaces of the light-emitting components is used as a reference surface. On a negative direction position of a Y axis, relative to the reference surface, a first reflection portion which has functions of making light from the light source portion point to the positive direction of the Y axis and shielding light pointing to the negative direction of the Y axis is arranged on the X axis direction in an extending manner. On the position of the positive direction of the Y axis, relative to the reference surface, a second reflection portion which has functions of reflecting light from the light source portion and the first reflection portion to make the light point to the positive direction of the Y axis is arranged on the X axis direction in an extending manner.

Description

technical field [0001] The present invention relates to a light irradiation device mounted on, for example, an inkjet printer or a 3D printer, and a photocurable material processing device including the light irradiation device. Background technique [0002] In the past, in the field of printing and electronics industry, etc., in order to perform curing treatment, drying treatment, melting treatment, softening treatment or For modification treatment, etc., a light irradiation device that radiates light of a specific wavelength is often used. [0003] For example, Patent Document 1 discloses an inkjet printer using ultraviolet curable ink. This inkjet printer is equipped with a head that ejects ink, and a light irradiation device that is provided adjacent to the head. In such an inkjet printer, a plurality of ejection sections are provided in the ejection section. In addition, various inks (photocurable materials) are ejected from these ejection units to the recording medi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21S8/00F21V7/00F21V33/00B41J11/00B29C67/00
CPCF21S8/00F21V7/00F21V33/00B29C67/00B41J11/002B41J11/00218B41J11/00214
Inventor 井上隆博
Owner USHIO DENKI KK
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