High-resolution day and night dual-use economical zoom camera lens and method of use thereof

A high-resolution, camera lens technology, applied in optical components, 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

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 day and night dual-use economical zoom camera lens and method of use thereof
  • High-resolution day and night dual-use economical zoom camera lens and method of use thereof

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Experimental program
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Embodiment Construction

[0021] like Figure 1~2 As shown, a high-resolution day and night dual-use economical zoom camera lens, the mechanical structure of the lens includes a front group lens holder for installing the front group A, a rear group lens holder for installing the rear group B, the front group The 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. 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. The front locking nail that the cam rotates, and the rear locking nail that drives the rear cam to rotate is arranged on the rear cam.

[0022] In this embodiment, the optica...

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PUM

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Abstract

The invention relates to a high-resolution day and night economical zoom photographing lens and a use method thereof. The mechanical structure of the lens comprises a front group lens base which is used for installing a front group A and a rear group lens base which is used for installing a rear group B. The front group lens base is flexibly installed in a front group lens cone. The external side of the front group lens cone is sleeved by a front cam which drives the front group lens base to move forwardly and backwardly. The rear group lens base is flexibly installed in a rear group lens cone. The external side of the rear group lens cone is sleeved by a rear cam which drives the rear group lens base to move forwardly and backwardly. A double light filter switcher is arranged between the front group lens cone and the rear group lens cone. The front cam is provided with a front locking screw which drives the front cam to rotate. The rear cam is provided with a rear locking screw which drives the rear cam to rotate. The optical system of the lens is provided with a negative focal power front group A and a positive focal power rear group B which are arranged along a light incident direction in turn. A diaphragm C is arranged between the front group A and the rear group B. The high-resolution day and night economical zoom photographing lens is high in optical index, large in optical target surface and high in resolution so that 0.3m close-up clear imaging can be realized.

Description

technical field [0001] The invention relates to a high-resolution day and night dual-purpose economical 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): G02B15/14
CPCG02B15/14
Inventor 潘俊达何武强蒋日明苏青年
Owner FUJIAN FORECAM OPTICS CO LTD
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