Color sensor module and mobile terminal
A color sensor module including a color sensor for detecting a surrounding color condition, and a concave lens located in front of the color sensor can ensure an amount of light reaching the color sensor, thereby obtaining more accurate color condition information, regardless of the incident angle.
1. A color sensor module comprising:
a color sensor configured to sense a surrounding color condition;
a glass cover located on a front side of the color sensor; and
a concave lens formed by cutting a surface of the glass cover that faces the color sensor,
wherein the concave lens includes a first surface that faces the color sensor and is a concave surface and a second surface that is opposite the first surface and is a flat surface.
2. The color sensor module according to claim 1 , wherein the concave lens has a radius of curvature ranging from 1 mm or more to 5 mm or less.
3. The color sensor module according to claim 1 , wherein a ratio of an amount of light when light introduced into the concave lens at an angle of incidence of 50 degrees reaches the color sensor to an amount of light when light introduced into the concave lens at an angle of incidence of 0 degrees reaches the color sensor is 58% or more.
4. The color sensor module according to claim 1 , further comprising:
a printed circuit board on which the color sensor is seated; and
a flash seated on the printed circuit board so as to be adjacent to the color sensor,
wherein the glass cover covers both the flash and the color sensor.
5. The color sensor module according to claim 4 , wherein a distance between a front surface of the flash and the glass cover is shorter than a distance between a front surface of the color sensor and the glass cover.
6. The color sensor module according to claim 4 , wherein the concave lens is disposed so as to deviate from a center of the color sensor toward the flash.
7. The color sensor module according to claim 1 , further comprising an anti-reflecting coating layer on one surface or both surfaces of the concave lens.
8. A mobile terminal comprising:
a main body;
a camera mounted in the main body to obtain image information;
a color sensor mounted in the main body to sense a surrounding color condition;
a glass cover located on a front side of the color sensor;
a concave lens formed by cutting a surface of the glass cover that faces the color sensor; and
a controller configured to correct the image information obtained by the camera using the color condition sensed by the color sensor,
wherein the concave lens includes a first surface that faces the color sensor and is a concave surface and a second surface that is opposite the first surface and is a flat surface.
9. The mobile terminal according to claim 8 , wherein the concave lens has a radius of curvature ranging from 1 mm or more to 5 mm or less.
10. The mobile terminal according to claim 8 , wherein a ratio of an amount of light when light introduced into the concave lens at an angle of incidence of 50 degrees reaches the color sensor to an amount of light when light introduced into the concave lens at an angle of incidence of 0 degrees reaches the color sensor is 58% or more.
11. The mobile terminal according to claim 8 , further comprising:
a printed circuit board on which the color sensor is seated; and
a flash seated on the printed circuit board so as to be adjacent to the color sensor,
wherein the glass cover covers both the flash and the color sensor.
12. The mobile terminal according to claim 11 , wherein a distance between a front surface of the flash and the glass cover is shorter than a distance between a front surface of the color sensor and the glass cover.
13. The module terminal according to claim 11 , wherein the concave lens is disposed so as to deviate from a center of the color sensor toward the flash.
14. The mobile terminal according to claim 8 , wherein the concave lens has a flat surface defining the same plane as a surface of the main body.
15. The mobile terminal according to claim 8 , further comprising an anti-reflecting coating layer on one surface or both surfaces of the concave lens.