Patent ID: 11875525
Assignee: LG INNOTEK CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 0:
1. A camera module comprising:
a light source array including a plurality of light sources for outputting light to an object;
a receiver for receiving light reflected from the object through reception pixels;
at least one phase retarder located at the receiver; and
a processor for obtaining depth information on the object by using a phase difference between the light outputted from the light source array and the light received by the receiver,
wherein the light source array includes light sources on a first output line and light sources on a second output line,
wherein the phase difference between the light outputted from the light sources on the first output line and the light outputted from the light sources on the second output line is a first value,
wherein the reception pixels include pixels on a first reception line and pixels on a second reception line,
wherein the phase difference between a time point when the light is received at the pixels on the first reception line and a time point when the light is received at the pixels on the second reception line is a second value due to the phase retarder being located at one of the first reception line or the second reception line, and
wherein the first value and the second value are different values.