Planar lighting device and installation method
The technology of a lighting device and an installation method, which is applied in the direction of lighting devices, fixed lighting devices, components of lighting devices, etc., can solve problems such as inability to achieve lighting performance, and achieve the effect of improving installation accuracy
Active Publication Date: 2020-02-14
MINEBEA CO LTD
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Problems solved by technology
[0006] However, in the existing technology, for example, there is still a concern of being mounted in a state inclined relative to the pad
For example, when the electronic component is a light source, if it is mounted in a state inclined from the original angle with respect to the pad, the optical axis of the light source deviates from the original direction, and there is a possibility that the desired lighting performance cannot be realized.
Method used
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[0022] Hereinafter, the planar lighting device and the mounting method of the embodiment will be described with reference to the drawings. In addition, the dimensional relationship of each element in the drawings, the ratio of each element, and the like may differ from reality. Between the drawings, there are often portions where the relationship and ratio of mutual dimensions are different. In each drawing, for the sake of easy understanding and description, the three-dimensional orthogonal coordinate system in which the light emission direction of the planar lighting device is taken as the positive direction of the Z-axis is often shown.
[0023] figure 1 It is a front view showing an example of the appearance of the planar lighting device of the embodiment. Such as figure 1 As shown in the example of , the shape of the planar lighting device 1 according to the embodiment is substantially rectangular in plan view. One end side in the longitudinal direction (X-axis direct...
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Abstract
The invention provides a planar lighting device and an installation method, which can improve the installation precision. The planar lighting device comprises a plurality of pads, a light source, andan adhesion part. The pads are arranged on the main surface of a wiring substrate. The light source comprises terminals stored in a plurality of cavities arranged in any surface other than the light emitting surface. The pads and the terminals are adhered through solder in the cavities. The adhesion part is arranged between the main surface and the light source so as to adhere the main source to the light source. The space between the surface of the light source and the pads is 20 [mu]m or less.
Description
technical field [0001] The invention relates to a planar lighting device and an installation method. Background technique [0002] Conventionally, there is known a technique for joining pads serving as electrodes provided on a mounting surface of a substrate to terminals provided on the side or bottom of an electronic component other than a light source by reflow of solder printed on the pads. In the mounting method of the electronic component, the mounting surface and the electronic component are bonded via an adhesive or solder disposed at a position different from the terminal of the electronic component, thereby preventing inclination and misalignment of the mounting position of the electronic component during reflow. [0003] Patent Document 1: Japanese Patent Application Laid-Open No. 9-260429 [0004] Patent Document 2: Japanese Unexamined Patent Publication No. 2011-66112 [0005] Patent Document 3: Japanese Patent Laid-Open No. 2017-163029 [0006] However, in th...
Claims
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IPC IPC(8): F21S8/00F21V19/00F21V23/06F21Y115/10
CPCF21S8/00F21V19/005F21V23/06F21Y2115/10
Inventor 海老塚守之楠木一平
Owner MINEBEA CO LTD