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Virtually expanding imaging device and method

A technology that expands the imaging surface and is used in installation, image communication, color TV components, etc. It can solve the problems of small number of area array image sensors and high price, and achieve the goal of expanding the angle of incidence and the original field of view of the system. Effect

Active Publication Date: 2011-04-06
BEIHANG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, for an image sensor with a certain number of pixels, expanding the field of view means a decrease in imaging resolution. Although an image sensor with more pixels can be used to improve the resolution, the number of area array image sensors with large pixels is small. and it's very expensive

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  • Virtually expanding imaging device and method
  • Virtually expanding imaging device and method

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Embodiment Construction

[0025] The basic idea of ​​the present invention is: set a group of plane mirrors around the image sensor, so that the incident light outside the original field of view and in the new field of view of the photoelectric collimation and self-collimation measurement system is reflected by the plane mirrors and projected on the The light spot is formed on the imaging surface of the image sensor, so that the incident light outside the original field of view and the new field of view of the system can be imaged by the image sensor, thereby expanding the range of incident light participating in imaging without changing the imaging resolution and focal length. The angle of incidence virtually expands the imaging surface of the image sensor, thereby expanding the original field of view of the system.

[0026] The present invention is a device for virtual extended imaging, such as figure 1 As shown, the device is mainly composed of an image sensor (not shown in the figure), a plane mirr...

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Abstract

The invention provides a virtually expanding imaging device and a method. In a photoelectric collimation and auto-collimation measuring system imaging based on an image sensor, plane mirrors are arranged around the image sensor so as to enable an incident ray outside an original viewing field and inside a new viewing field of the system to be reflected via the plane mirrors, and then to be projected into an imaging face of the image sensor to form light spots, thereby normally imaging the incident ray outside the original viewing field and inside the new viewing field of the system via the image sensor. By adopting the device and the method, the imaging face of the image sensor is virtually expanded without changing the imaging resolution and focus distance, thereby enlarging an incident angle of the incident ray participating in the imaging, and further expanding the original viewing field of the system.

Description

technical field [0001] The invention relates to the field of imaging technology, in particular to a virtual extended imaging device and method based on image sensor imaging in photoelectric collimation and autocollimation angle measurement systems. Background technique [0002] In photoelectric collimation and self-collimation angle measurement systems based on image sensors, such as charge-coupled devices (CCD, Charge Coupled Device) and metal-oxide semiconductor elements (CMOS, Complementary Metal-Oxide Semiconductor) image sensors, currently participating in imaging The measurement process of the incident angle of the incident light is: make the parallel incident light in the field of view of the system incident on the imaging surface of the image sensor to form a spot, and image it through the image sensor, and then calculate the coordinates of the center of mass of the spot in the imaging plane, you can pass The geometric relationship calculates the incident angle value...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B5/08G02B7/182H04N5/225H04N5/335H04N25/00
Inventor 江洁王昊予张广军
Owner BEIHANG UNIV