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High-resolution low-distortion day and night zooming camera lens and use method thereof

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: 2016-03-16
FUJIAN FORECAM OPTICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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 low-distortion day and night zooming camera lens and use method thereof
  • High-resolution low-distortion day and night zooming camera lens and use method thereof

Examples

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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 low-distortion day and night zooming camera lens and a use method thereof. The mechanical structure of the lens comprises a front-set lens seat installed on the front set A and a back-set lens seat installed on the backs set B. The front-seat lens seat is movably installed in a front-set lens cylinder. A front cam used for driving the front-set lens seat to move back and forth sleeves the outer side of the front-set lens cylinder. The back-set lens seat is movably installed in a back-set lens cylinder. A back cam used for driving the back-set lens seat to move back and forth sleeves the outer side of the back-set lens cylinder. A dual-optical filter switcher is arranged between the front-set lens cylinder and the back-set lens cylinder. A front locking tightening nail used for driving the front cam to rotate is arranged on the front cam. A back locking tightening nail used for driving the back cam to rotate is arranged on the back cam. The front set A with the zero focal power and the back set B with the positive focal power are successively arranged on an optical system of the lens in the incidence direction of light. A diaphragm C is arranged between the front set A and the front set B. According to the invention, the optical index is high; the optical target surface is big; resolution is high; and clear imaging in 0.3m near shooting distance can be realized.

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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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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