Method and camera module for acquiring depth information

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;
• 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, and
• wherein the first value and the second value are different values.

A camera module comprising:

• a light source array including a plurality of light sources for outputting light to an object;
• an image sensor for receiving light reflected from the object through reception pixels and disposed on the printed circuit board;
• a printed circuit board including a processor;
• and
• a lens assembly including lens and coupled to the printed circuit board,
• wherein the processor obtains 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 image sensor,
• 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, and
• wherein the first value and the second value are different values.

A method for obtaining depth information comprising the steps of:

• outputting light to an object through pixels on a first output line and pixels on a second output line;
• receiving light reflected from the object through pixels on a first reception line and pixels on a second reception line;
• and
• obtaining depth information on the object by using a phase difference between the outputted light and the received light,
• 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, and
• wherein the phase difference between the time point when the light is received at the pixels on the first reception line and the time point when the light is received at the pixels on the second reception line is a second value.