Light emitting device and apparatus using the same
First Claim
1. A light emitting device comprising a reflecting member for reflecting light, a light guiding member arranged at the side of a light reflecting surface of said reflecting member, and a light emitting element for emitting light toward said light guiding member, characterized in that the surface of the light emitting side of said light guiding member comprises a direct emitting portion for directly passing the light emitted from said light emitting element through to be emitted toward the outside of the light guiding member;
- a first total reflecting portion for totally reflecting the light emitted from the light emitting element toward said reflecting member and passing the light reflected by the reflecting member through to be emitted toward the outside of the light guiding member; and
a second total reflecting portion configured so that the light emitted from the light emitting element is totally reflected toward the direct emitting portion, the light totally reflected by the direct emitting portion is directed to said reflecting member, and the light reflected by the reflecting member is emitted toward the outside of the light guiding member.
1 Assignment
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Accused Products
Abstract
A mold part formed of a light transmitting material having a high refractive index is molded in a concave-shaped reflecting member, and a light emitting element such as an LED chip or the like is inserted in the center of the mold part. A circular direct emitting portion is provided at the center of a front face of the mold part, a ring-shaped total reflecting portion is provided around it, and a slanted total reflecting portion is provided between the direct emitting portion and total reflecting portion. Thereby, the uniformity of front face luminance with a simple structure in a light emitting device provided with a reflecting member on a back face of a mold part is improved.
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Citations
13 Claims
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1. A light emitting device comprising a reflecting member for reflecting light, a light guiding member arranged at the side of a light reflecting surface of said reflecting member, and a light emitting element for emitting light toward said light guiding member, characterized in that the surface of the light emitting side of said light guiding member comprises a direct emitting portion for directly passing the light emitted from said light emitting element through to be emitted toward the outside of the light guiding member;
- a first total reflecting portion for totally reflecting the light emitted from the light emitting element toward said reflecting member and passing the light reflected by the reflecting member through to be emitted toward the outside of the light guiding member; and
a second total reflecting portion configured so that the light emitted from the light emitting element is totally reflected toward the direct emitting portion, the light totally reflected by the direct emitting portion is directed to said reflecting member, and the light reflected by the reflecting member is emitted toward the outside of the light guiding member. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
- a first total reflecting portion for totally reflecting the light emitted from the light emitting element toward said reflecting member and passing the light reflected by the reflecting member through to be emitted toward the outside of the light guiding member; and
Specification