Patent ID: 11867817
Assignee: LG INNOTEK CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G  H | IPC G

Claim 0:
1. A camera device comprising:
a light output unit configured to output an output light signal to be irradiated to an object;
a lens unit including an infrared (IR) filter and at least one lens disposed on the IR filter, and configured to collect an input light signal reflected from the object;
an image sensor configured to generate an electric signal from the input light signal collected by the lens unit;
a tilting unit configured to shift an optical path of the input light signal according to a predetermined rule; and
an image controller configured to acquire depth information of the object by using a phase difference between the output light signal and the input light signal received by the image sensor,
wherein the image controller acquires the depth information of the object by using data extracted during a plurality of periods during which the optical path of the input light signal is repeatedly shifted according to the predetermined rule, and
the image controller corrects a difference between an actual shift value and a preset shift value of the optical path of the input light signal.