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Image sensor with optical filters having alternating polarization for 3d imaging

An image sensor and optical filter technology, applied in the field of image sensors, can solve the problems of increasing pixel crosstalk and crosstalk

Active Publication Date: 2013-07-24
OMNIVISION TECH INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, interleaving using lenticular lenses or microlenses may increase pixel crosstalk and may also introduce crosstalk between the captured left and right images

Method used

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  • Image sensor with optical filters having alternating polarization for 3d imaging
  • Image sensor with optical filters having alternating polarization for 3d imaging
  • Image sensor with optical filters having alternating polarization for 3d imaging

Examples

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Embodiment Construction

[0020] Embodiments of image sensors with filters with alternating polarizations for 3D imaging are described herein. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the embodiments. One skilled in the art will recognize, however, that the techniques described herein may be practiced without one or more of the specific details, or with other methods, components, materials, etc. In other instances, well-known structures, materials, or operations are not shown or described in detail to avoid obscuring certain aspects.

[0021] Reference in this specification to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the present invention. Thus, appearances of the phrase "in one embodiment" or "in an embodiment" in various places in this specification are not necessarily all referring ...

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Abstract

An image sensor for three-dimensional (3D) imaging includes a first, a second, and a third pixel unit, where the second pixel unit is disposed between the first and third pixel units. Optical filters included in the pixel units are disposed on a light incident side of the image sensor to filter polarization-encoded light having a first polarization and a second polarization to photosensing regions of the pixel units. The first pixel unit includes a first optical filter having the first polarization, the second pixel unit includes a second optical filter having the second polarization, and the third pixel unit includes a third optical filter having the first polarization.

Description

technical field [0001] The present invention relates generally to image sensors, and more particularly, but not exclusively, to 3D image sensors. Background technique [0002] In recent years, three-dimensional (3D) movies are shown in movie theaters and have received much attention from the public. 3D TVs and monitors are also available for home use. A 3D DVD player can be used to play a 3D movie, and thus the 3D movie can be watched at home. A 3D display may also be referred to as a stereoscopic display. [0003] The display of the 3D image is mainly performed by allowing the left eye to see only the left view and the right eye to see only the right view. The difference between the left view and the right view creates a parallax, making the viewer feel that he is looking at a 3D object. For the left eye to see only the left view, and the right eye to see only the right view, the two views must be isolated from each other. The left and right views provided by the displ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L27/146H04N5/335G02B30/25
CPCH01L27/14627H01L27/14621H01L27/146H04N13/0257H04N13/0207H04N5/3696H04N13/0217H04N5/335H04N13/218H04N13/257H04N25/134H04N13/207H04N25/702
Inventor 邝江涛吴东晖代铁军单继璋
Owner OMNIVISION TECH INC
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