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Image sensors and methods of operating the same

a technology of image sensor and image sensor, which is applied in the field of image sensor, can solve the problems of light energy waste, etc., and achieve the effect of increasing the curvature of the lens and increasing the distance of the object from the three-dimensional image sensor

Inactive Publication Date: 2012-06-21
SAMSUNG ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0009]According to example embodiments, the adjusting decreases the emission angle of the light as the distance of the object from the three-dimensional image sensor increases.
[0013]According to example embodiments, the adjusting increases the refractive index of the lens as the distance of the object from the three-dimensional image sensor increases.
[0015]According to example embodiments, the adjusting increases the curvature of the lens as the distance of the object from the three-dimensional image sensor increases.

Problems solved by technology

In a conventional three-dimensional image sensor, light energy may be wasted since light is projected even on regions where an object of interest does not exist.

Method used

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  • Image sensors and methods of operating the same
  • Image sensors and methods of operating the same
  • Image sensors and methods of operating the same

Examples

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Embodiment Construction

[0052]Various example embodiments will be described more fully hereinafter with reference to the accompanying drawings, in which some example embodiments are shown. The present inventive concept may, however, be embodied in many different forms and should not be construed as limited to the example embodiments set forth herein. In the drawings, the sizes and relative sizes of layers and regions may be exaggerated for clarity.

[0053]It will be understood that when an element or layer is referred to as being “on,”“connected to” or “coupled to” another element or layer, it can be directly on, connected or coupled to the other element or layer or intervening elements or layers may be present. In contrast, when an element is referred to as being “directly on,”“directly connected to” or “directly coupled to” another element or layer, there are no intervening elements or layers present. Like numerals refer to like elements throughout. As used herein, the term “and / or” includes any and all co...

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Abstract

According to example embodiments, a method of operating a three-dimensional image sensor comprises measuring a distance of an object from the three-dimensional image sensor using light emitted by a light source module, and adjusting an emission angle of the light emitted by the light source module based on the measured distance. The three-dimensional image sensor includes the light source module.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]This U.S. non-provisional application claims priority under 35 U.S.C. §119 to Korean Patent Application No. 2010-0131147 filed on Dec. 21, 2010 in the Korean Intellectual Property Office (KIPO), the contents of which are incorporated herein by reference in their entirety.BACKGROUND[0002]1. Technical Field[0003]Example embodiments relate to image sensors and method of operating the same.[0004]2. Description of the Related Art[0005]An image sensor is a photo-detection device that converts optical signals including image and / or distance (i.e., depth) information of an object into electrical signals. Various types of image sensors, such as charge-coupled device (CCD) image sensors, CMOS image sensors (CIS), etc., have been developed to provide high quality image information of the object. Recently, a three-dimensional (3D) image sensor is being researched and developed which provides depth information as well as two-dimensional image informat...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): H04N13/02H04N25/00
CPCH04N5/2256H04N13/0271H04N13/0253H04N13/254H04N13/271H04N23/56H04N25/50G01S17/06G01S7/4811
Inventor CHANG, SEUNG-HYUKPARK, YOON-DONGLEE, YONG-JEL
Owner SAMSUNG ELECTRONICS CO LTD
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