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US 2019/0196215 A1Published application
Mobile terminal and method for controlling the same
AssigneeLG Electronics Inc.
InventorsChanghwan LEE, Yunsup SHIN, Ayoung CHO
Life of this patent
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Abstract
A mobile terminal having a lighting device including a light emitting element, a diffractive optical element (DOE) to diffract a part of light output from the light emitting element, and a driving unit to move the diffractive optical element so as to vary a distance between the light emitting element and the diffractive optical element.
Claims14
A mobile terminal, comprising:
- a camera;
- a lighting device;
- and
- a controller to control the camera and the lighting device,
- wherein the lighting device comprises:
- a printed circuit board;
- a light emitting element provided on the printed circuit board to emit light of a specific pattern;
- a diffractive optical element to diffract a part of light emitted from the light emitting element;
- a lens through which light diffracted by the diffractive optical element is incident on a subject;
- and
- a driving unit to:
- move the diffractive optical element a first distance from the light emitting element such that the light incident through the lens is irradiated as a first light pattern to the subject, and move the diffractive optical element a second distance from the light emitting element such that the light incident through the lens is irradiated as a second light pattern to the subject, and
- wherein the controller extracts depth information related to an image received through the camera using the first light pattern and the second light pattern irradiated on the subject.
10 more elements
Dependencies are inferred from the claim text.