Patent ID: 9571204
Date: 2017-02-14
CPC Classifications: G02B,H04B

Claim:
1. A LED optical communication receiving lens, comprising: a first surface comprising a first spherical surface and a second spherical surface connected to the first spherical surface; and a second surface opposite to the first surface, the second surface comprises a third spherical surface and a planar surface connected to the third spherical surface; wherein a position of the LED optical communication receiving lens is defined as a three-dimensional Cartesian coordinate system (x, y, z); a sphere center and a symmetric central point of the first spherical surface, a sphere center and a symmetric central point of the second spherical surface, a sphere center and a symmetric central point of the third spherical surface are located on the x axis; the first spherical surface and the planar surface are transmitted surfaces; the symmetric central point of the first spherical surface is located on an origin (0, 0, 0) of the three-dimensional cartesian coordinate system (x, y, z); the planar surface is parallel to a surface formed by the y axis and the z axis; the second spherical surface and the third spherical surface are reflective surfaces; field of views of the LED optical communication receiving lens ranges from about 0° to about 48.3°, and an illumination value of each field of view is larger than about 1 lux.