Seoul Semiconductor Co., Ltd.

Jeong A Han

Kwang Il Park

Hee Tak Oh

Sang Cheol Lee

Woong Jun Hwang

Ki Bum Nam

Eun Ju Kim

Myung Hee Lee

Ji Seop So

Jong Beom Choi

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 part having a concave shape formed inward from a lower part of the optical diffusing lens, a reflection part having a shape which is concave inward from an upper portion of the light diffusing lens and a light exit portion defined by an outer surface of the light diffusing lens, wherein the light entrance part 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 the straight line goes toward the inside of the light diffusing lens.

Light diffusing lens and light emitting device including the same

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.

Light diffusing lens having a lower concave depressed incident portion and an upper concave depressed reflective portion and light emitting device having the same

An aspherical lens includes a light entrance plane configured to receive light emitted from a light source and a light exit plane configured to radiate the light received by the light entrance plane. The light exit plane includes semispherical convex portions disposed on an upper surface of the aspherical lens, a concavely depressed portion comprising an overlapping region where the semispherical convex portions partially overlap each other at a central axis, a side portion connected with the semispherical convex portions, and an upper surface of each of the semispherical convex portions having a first flat portion.

Aspherical LED lens and light emitting device including the same

Exemplary embodiments of the present invention relate to an aspherical light emitting diode (LED) lens and a light emitting device including the same. The aspherical LED lens includes a light exit plane concavely depressed near a central axis, a light entrance plane including a conical plane having a vertex located on the central axis, and a plurality of protrusions arranged on a portion of a side surface of the light exit plane. The aspherical LED lens has a radially symmetrical structure with respect to the central axis.

Light emitting diode

Light emitting diode (LED)

Growing community of inventors

Ansan-si, South Korea

Jeong A Han