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Device and method for improving high-definition zoom lens assembling and adjusting efficiency and imaging quality

A zoom lens and imaging quality technology, applied in the field of optics, can solve the problem of not being able to detect changes in image quality in a timely manner, and achieve the effects of improving installation and calibration efficiency and imaging quality, improving installation and calibration efficiency, and facilitating adjustment.

Pending Publication Date: 2018-10-12
FUZHOU ICAMSYS PHOTOELECTRIC TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantages of these methods are: only the image quality of the middle area can be guaranteed, and the image quality of the whole field of view can only be guaranteed randomly, and after the lens is glued and cured, it is impossible to detect whether the image quality has changed in a timely manner.

Method used

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  • Device and method for improving high-definition zoom lens assembling and adjusting efficiency and imaging quality
  • Device and method for improving high-definition zoom lens assembling and adjusting efficiency and imaging quality
  • Device and method for improving high-definition zoom lens assembling and adjusting efficiency and imaging quality

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specific Embodiment approach ( 1

[0040] Such as figure 1 - Figure 7 Shown here is a device for improving the installation and calibration efficiency and imaging quality of a high-definition zoom lens provided by the present invention. The high-definition zoom lens includes a front lens group 1 and a rear lens group 2 coaxially arranged below the front lens group 1. The rear lens group 2 includes a rear lens barrel 2.1, a rear lens group 2.2 fixed at the lower end of the rear lens barrel 2.1, and a key element lens group 2.3 to be adjusted movably placed in the upper end of the rear lens barrel 2.1, and is characterized in that: The device includes a rack 3 and a front group placement seat 4 fixed on the rack 3 for placing the lens front group 1. The device also includes a front group placement seat 4 arranged in order from far to near along the optical axis. The light source 5, the homogenizing plate 6, the reticle 7 and the rear group placement seat 8 for placing the lens rear group 2, the light source 5, the...

specific Embodiment approach ( 2

[0049] A method for improving the installation and calibration efficiency and imaging quality of a high-definition zoom lens is characterized in that the method includes the following steps:

[0050] ① Install the front lens group 1 in the front group placement base 4, use the lifting drive mechanism 10 to drive the lifting platform 9 down to leave the detection position, then install the lens rear group 2 in the rear group placement base 8, and then use the lifting drive mechanism 10 Drive the lifting platform 9 up to the detection position;

[0051] ②Turn on the light source 5, and use the lifting adjustment assembly 14 to adjust the position of the reticle 7 relative to the rear lens group 2, so that the pattern on the reticle 7 passes through the rear lens group 2 and the front lens group 1 and then is in the multi-optical MTF tester 11. Form a clear image;

[0052] ③According to the real-time detection results of the imaging quality of the HD zoom lens by the multi-optical MTF ...

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Abstract

The invention relates to a device and method for improving the high-definition zoom lens assembling and adjusting efficiency and imaging quality. The device and method are suitable for assembling, adjusting and detecting of video camera lenses in the fields of security and protection, industrial automation and the like in which silent frames have high imaging quality. The high-definition zoom lenscomprises a front camera lens group and a rear camera lens group, and the post camera lens group comprises a rear lens barrel, a rear lens assembly and a to-be-adjusted key component lens assembly; the device comprises a rack, a front group placing base, a light source, a uniform light plate, a reticle, a rear group placing base, a lifting platform, a lifting driving mechanism, a multi-pass MTF tester, a key component adjusting part and a lifting adjusting assembly. According to the device and method, by means of the multi-pass MTF test component, the imaging quality of the full field of a high-definition zoom lens is detected in real time, and meanwhile by means of the key component adjusting part, the position of the to-be-adjusted key component lens assembly is adjusted till the imaging quality of the high-definition zoom lens meets the requirement; not only is the assembling and adjusting efficiency high, but also the image quality of the full field of the lens can be guaranteed.

Description

Technical field [0001] The invention relates to the field of optics, in particular to a device and method for improving the efficiency and imaging quality of high-definition zoom lens installation and calibration. It is suitable for the installation and calibration of video camera lenses in the security, industrial automation and other fields that require full-frame high imaging quality. Detection. Background technique [0002] With the development of video cameras in the direction of high-definition, large-format, and high-sensitivity, the requirements for optical lenses have become higher and higher, and the assembly of optical lenses has become increasingly difficult. In order to solve this problem, lens manufacturers have continuously improved the machining accuracy of parts. For example, the lens edging concentricity, outer diameter accuracy and lens barrel inner diameter matching accuracy are greatly improved, which greatly increases the processing cost. In addition, due ...

Claims

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Application Information

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IPC IPC(8): G02B7/04G01M11/02
CPCG02B7/04G01M11/0207
Inventor 江化嫏林大钦杨光聪
Owner FUZHOU ICAMSYS PHOTOELECTRIC TECH
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