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Fish-eye lens test method and device

A technology of fisheye lens and testing device, which is applied in the direction of testing optical performance, etc.

Inactive Publication Date: 2017-12-08
TRULY OPTO ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the existing tests on the resolving power of fisheye lenses are not ideal, and the tested resolving power is quite different from the actual one.

Method used

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Embodiment Construction

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0028] As mentioned in the background, the fisheye lens is a special kind of super wide-angle lens. Compared with the common lens, the fisheye lens has a wider field of view, so it can obtain more image information. The images recorded by the fisheye lens are distorted images of the scene in a wide field of view, so the distortion phenomenon needs to be corrected in the production process of the fisheye lens, and the correction of the fisheye lens needs to test...

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Abstract

The present invention discloses a fish-eye lens test method and device. The method comprises: providing a fish-eye lens; selecting a plurality of fields of view in the angle of visual field of the fish-eye lens, and correspondingly arranging at least one test panel at any one field of view; and performing resolving power test through electrifying the fish-eye lens. According to the technical scheme, the resolving power test of a plurality of fields of view in the angle of visual field of the fish-eye lens is performed to allow the test result of the resolving power to approach to the reality so as to provide powerful guarantee for the processing process such as correction of the fish-eye lens, etc.

Description

technical field [0001] The invention relates to the technical field of lens testing, and more specifically, to a fisheye lens testing method and testing device. Background technique [0002] With the breakthrough of ultra-high-resolution sensor technology and the rapid increase of signal processor processing speed, the application of ultra-high-resolution cameras in various fields is becoming more and more popular. Considering the convenience of size, installation and maintenance, and use, fisheye lenses with super large field of view have been widely used in automobiles, surveillance and other fields. Fisheye lens is a special kind of ultra-wide-angle lens. Compared with ordinary lenses, fisheye lens has a wider field of view, so it can obtain more image information. The images recorded by the fisheye lens are distorted images of the scene in a wide field of view, so the distortion phenomenon needs to be corrected in the production process of the fisheye lens, and the corr...

Claims

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Application Information

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IPC IPC(8): G01M11/02
CPCG01M11/02
Inventor 林挺曾菲菲黄盛龙张露
Owner TRULY OPTO ELECTRONICS
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