Illuminating unit
A technology for lighting units and light guide sheets, which is applied in the direction of light guides, optical components, light guides, etc. of the lighting system to achieve the effect of improving brightness
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[0043] Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
[0044] Fig. 1 is a diagram showing a lighting unit that does not have the structure according to the present invention. The lighting unit shown in FIG. 1 has a base 11, and the base 11 has an operation area. The structure of the operation area of the base 11 is not particularly limited. A contact piece 12 is arranged on the base 11. The contact sheet 12 is made of a plastic material such as PET (polyethylene terephthalate) resin.
[0045] A light guide sheet 13 is arranged on the contact sheet 12. A light source unit 14 is arranged near the end surface B of the light guide sheet 13. A light emitting diode (LED) 141 as a light source is installed in the light source unit 14. In order to reliably perform operations in the operation area (for example, pressing a button), the thickness of the light guide sheet 13 needs to be reduced. Therefore, the thickness of the ...
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