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Camera device

A camera device and optical path technology, applied in the direction of measuring device, installation, image reproducer using projection device, etc., can solve the problems of inability to obtain images, light saturation, etc., and achieve the effect of preventing light saturation and high accuracy

Pending Publication Date: 2021-07-30
LG INNOTEK CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Here, when emitting light of the same intensity as a structured light projector, light saturation occurs, making it impossible to obtain an image

Method used

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Embodiment Construction

[0046] Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0047] However, the present invention is not limited to the embodiments disclosed below, but can be implemented in various forms. One or more components of the embodiments may be selectively combined or replaced with each other without departing from the scope of the technical concept of the present invention.

[0048] Also, unless otherwise defined, terms (including technical and scientific terms) used herein may be used as meanings that can be commonly understood by one of ordinary skill in the art. In addition, terms defined in general dictionaries may be interpreted in consideration of contextual meanings of related technologies.

[0049] Furthermore, the terms used herein are intended to describe the embodiments and are not intended to limit the present invention.

[0050] In this specification, a singular form includes a plural f...

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Abstract

A camera device according to an embodiment of the present invention comprises: a light-emitting part for changing the optical path of light according to a first control signal and outputting the light along a first optical path or a second optical path; a light-receiving part for receiving the light reflected from a subject and generating an electrical signal; and a controller for generating the first control signal which is provided to control whether the optical path of the light is changed to the first optical path or the second optical path, wherein the light-emitting part outputs the light in a first pattern along the first optical path or outputs the light in a second pattern along the second optical path.

Description

technical field [0001] The invention relates to an imaging device. Background technique [0002] Three-dimensional (3D) content is applied not only to the field / range of games and culture, but also to various fields such as education, manufacturing, and autonomous driving. Depth maps are necessary to obtain 3D content. The depth map is information about a spatial distance, and indicates perspective information of one point from another point in a two-dimensional (2D) image. As a method of obtaining a depth map, a method of projecting infrared (IR) structured light to an object, a method of using a stereo camera, a time-of-flight (TOF) method, and the like have been used. [0003] In the case of the TOF method or the structured light method, light in the IR wavelength region is used. Recently, attempts have been made to use characteristics of the IR wavelength region in biometric authentication. For example, the shape of dilated veins in fingers etc. does not change throu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00H04N5/232H04N5/225H04N9/31G03B17/48G06V40/145
CPCG03B17/48H04N9/31G01S7/4815G01S7/4816G01S17/894G01S17/36G06V40/145G02B13/14G02B27/4205G02B3/0056G02B3/14G02B2207/115G02B26/005H04N23/56H04N23/21G06V40/14G06V40/10G02B3/0037G02B7/021G02B13/18H04N9/77H04N23/74H04N5/33
Inventor 朱洋贤金哲朴炷彦张成河
Owner LG INNOTEK CO LTD