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High-resolution and low-distortion day-night zoom camera lens and its application method

A high-resolution, camera lens technology, applied in the direction of installation, optics, instruments, etc., to achieve the effect of high resolution, large optical target surface, and no distortion

Active Publication Date: 2017-10-31
FUJIAN FORECAM OPTICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This resolution is far from meeting the requirements of today's high-definition cameras.

Method used

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  • High-resolution and low-distortion day-night zoom camera lens and its application method
  • High-resolution and low-distortion day-night zoom camera lens and its application method

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Embodiment Construction

[0022] Such as Figure 1~2 As shown, a high-resolution low-distortion day and night dual-purpose zoom camera lens, the mechanical structure of the lens includes a front group lens holder for installing the front group A, and a rear group lens holder for installing the rear group B. The front group lens base is movably installed in the front group lens barrel, and the outer side of the front group lens barrel is provided with a front cam that drives the front group lens base to move back and forth, and the rear group lens base is movably installed in the rear group lens barrel, so The outer side of the rear group lens barrel is provided with a rear cam that drives the rear group lens base to move back and forth, a double filter switch is arranged between the front group lens barrel and the rear group lens barrel, and the front cam is provided with a drive The front locking nail that the front cam rotates, and the rear locking nail that drives the rear cam to rotate is arranged ...

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Abstract

The invention relates to a high-resolution and low-distortion day-night dual-purpose zoom camera lens and its use method. The mechanical structure of the lens includes a front group lens mount for installing the front group A, and a rear group lens mount for installing the rear group B. The front group lens base is movably installed in the front group lens barrel, and the outer side of the front group lens barrel is provided with a front cam that drives the front group lens base to move back and forth, and the rear group lens base is movably installed in the rear group lens barrel. There is a rear cam on the outer side of the tube to drive the rear group lens base to move back and forth, a double filter switch is set between the front group lens barrel and the rear group lens barrel, and a front locking nail is set on the front cam to drive the front cam to rotate , the rear cam is provided with a rear locking nail that drives the rotation of the rear cam, and the optical system of the lens is sequentially provided with a front group A with a negative focal power and a rear group B with a positive focal power along the incident direction of the light. A light barrier C is arranged between the group A and the back group B. The invention has high optical index, large optical target surface and high resolution, and can realize clear imaging at a close-up distance of 0.3m.

Description

technical field [0001] The invention relates to a high-resolution low-distortion day-night dual-purpose zoom camera lens and a using method thereof. Background technique [0002] The rapid development of science and technology and the gradual improvement of people's safety awareness have promoted the continuous progress of the security market. Nowadays, with the continuous maturity of advanced video compression coding technology, the rapid development of IP-based network transmission and the application of digital zoom technology, a series of high-definition cameras with 3 million and 5 million pixels have been launched on the market. However, in the process of network transmission and digital zooming, the clarity (that is, resolution) of the video will decrease to a certain extent, but at the same time, people's requirements for image resolution are getting higher and higher, so the front-end The resolution of the lens has higher requirements 。 [0003] The early fixed-f...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B7/10G02B15/177
CPCG02B7/105G02B15/177
Inventor 潘俊达何武强蒋日明苏青年
Owner FUJIAN FORECAM OPTICS CO LTD
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