Surface-shaped light irradiation device
First Claim
Patent Images
1. A surface-shaped light irradiation device comprising:
- a dot light source which emits a light substantially radiately; and
a light guiding plate which comprises a light entrance end surface from which a light emitted from said dot light source enters, a light emitting surface which is one principal surface for guiding the light entering from said light entrance end surface and emits a substantially uniform light therefrom, and a back surface which is the other principal surface oppose to said light emitting surface, wherein a retaining section which retains said dot light source at a predetermined set position is provided to said light guiding plate.
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Abstract
An LED is mounted on a flexible wiring board, and this flexible wiring board is adhered by a both-surface adhesive tape to a back of a light guiding plate to which a light reflecting film is adhered by an adhesive layer. The LED is kept at a desired set position by retaining the LED by a retaining section formed integrally with the light guiding plate in a state where a light emitting surface of the LED airtightly contacts a light entrance end surface of the light guiding plate, and by adhering a rear surface of the LED to an inner surface of the retaining section by an adhesive agent.
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Citations
9 Claims
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1. A surface-shaped light irradiation device comprising:
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a dot light source which emits a light substantially radiately; and
a light guiding plate which comprises a light entrance end surface from which a light emitted from said dot light source enters, a light emitting surface which is one principal surface for guiding the light entering from said light entrance end surface and emits a substantially uniform light therefrom, and a back surface which is the other principal surface oppose to said light emitting surface, wherein a retaining section which retains said dot light source at a predetermined set position is provided to said light guiding plate. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification