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Light diffusing lens having a lower concave depressed incident portion and an upper concave depressed reflective portion and light emitting device having the same
Light diffusing lens having a lower concave depressed incident portion and an upper concave depressed reflective portion and light emitting device having the same
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机译:具有下部凹入凹入入射部分和上部凹入凹入反射部分的光漫射透镜以及具有其的发光器件
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摘要
Disclosed is a light diffusing lens having a pointing angle distribution focused toward a lateral direction. The disclosed light diffusing lens includes a light entrance portion having a shape which is concave inward from the lower portion of the light diffusing lens, a reflection portion having a shape which is concave inward from the upper portion of the light diffusing lens, and a light exit portion defined by the outer surface of the light diffusing lens. The light entrance portion has a first convex surface which is convex in an optical axial direction defined by a straight line passing through the center of the light diffusing lens as it goes toward the inside of the light diffusing lens.
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