| 摘要 |
On a front wall of a mold resin ( 13 ) sealing a light emitter ( 12 ), a direct emission region ( 18 ), through which the light emitted from the light emitter ( 12 ) directly passes to the outside, and a total reflection region ( 19 ), by which the light emitted from the light emitter ( 12 ) is totally reflected, are formed. The direct emission region ( 18 ) is formed into a shape of a convex lens. A light reflection portion ( 20 ) which is made of a concave mirror is provided on the rear face of the mold resin ( 13 ). When a part of the light emitted from the light emitter ( 12 ) passes through the direct emission region ( 18 ), it is affected by the lens to be emitted to the front direction. After another part of the light emitted from the light emitter ( 12 ) is totally reflected by the total reflection region ( 19 ), it is reflected by the light reflection portion ( 20 ) to be emitted to the front direction through the total reflection region ( 19 ).
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