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A LED optical communication receiving lens includes a first surface and a second surface opposite to the first surface. The first surface includes a first spherical surface and a second spherical surface connected to the first spherical surface. The second surface includes a third spherical surface

A LED optical communication receiving lens includes a first surface and a second surface opposite to the first surface. The first surface includes a first spherical surface and a second spherical surface connected to the first spherical surface. The second surface includes a third spherical surface and a planar surface connected to the third spherical surface. A position of the LED optical communication receiving lens is defined as a three-dimensional Cartesian coordinate system (x, y, z). Sphere centers and symmetric central points of the first spherical surface, the second spherical surface, and the third spherical surface are located on the x axis. The first spherical surface and the planar surface are transmitted surfaces. The second spherical surface and the third spherical surface are reflective surfaces. The present application also relates to a LED optical communication system including the LED optical communication receiving lens.

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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; anda second surface opposite to the first surface, the second surface comprises a third spherical surface and a pla

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; anda 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. 2. The LED optical communication receiving lens of claim 1, wherein a caliber of the LED optical communication receiving lens is about 23.4 mm. 3. The LED optical communication receiving lens of claim 1, wherein a first spherical surface radius is about 9.086 mm, a symmetric central point coordinate of the second spherical surface is about (3.540, 0, 0), and a second spherical surface radius is about 33.040 mm. 4. The LED optical communication receiving lens of claim 1, wherein a symmetric central point coordinate of the third spherical surface is about (20.060, 0, 0), a third spherical surface radius is about −31.152 mm, and an intersection point coordinate formed by the planar surface and the x axis is about (19.588, 0, 0). 5. The LED optical communication receiving lens of claim 1, wherein a material of the LED optical communication receiving lens is K9 glass. 6. The LED optical communication receiving lens of claim 1, wherein the reflective surfaces are formed by locating a reflective film on the second spherical surface or the third spherical surface. 7. A LED optical communication system, comprising: a LED light source configured to send a communication signal;a signal receiving terminal confiugred to receive the communication signal and comprising an aperture, a LED optical communication receiving lens, and a photoreceptor;wherein a position of the LED optical communication receiving lens is defined as a three-dimensional Cartesian coordinate system (x, y, z), and the 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; anda 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 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. 8. The LED optical communication system of claim 7, wherein a caliber of the LED optical communication receiving lens is about 23.4 mm. 9. The LED optical communication system of claim 7, wherein a first spherical surface radius is about 9.086 mm, a symmetric central point coordinate of the second spherical surface is about (3.540, 0, 0), and a second spherical surface radius is about 33.040 mm. 10. The LED optical communication system of claim 7, wherein a symmetric central point coordinate of the third spherical surface is about (20.060, 0, 0), a third spherical surface radius is about −31.152 mm, and an intersection point coordinate formed by the planar surface and the x axis is about (19.588, 0, 0). 11. The LED optical communication system of claim 7, wherein the first surface is between the aperture and the second surface. 12. The LED optical communication system of claim 7, wherein the LED optical communication receiving lens is located between the aperture and the photoreceptor.