Large-target-surface automatic aperture zoom lens with high light flux, and application method thereof

A technology with automatic aperture and large target surface, applied in optics, optical components, installation, etc., to achieve the effect of high-definition video camera, high optical index, and large relative aperture

Active Publication Date: 2015-11-18
FUJIAN FORECAM OPTICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But such resolution and target size are far from meeting the requirements of current high-definition 4K cameras.

Method used

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  • Large-target-surface automatic aperture zoom lens with high light flux, and application method thereof
  • Large-target-surface automatic aperture zoom lens with high light flux, and application method thereof

Examples

Experimental program
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Embodiment Construction

[0017] Such as Figure 1~2 As shown, a large target surface automatic aperture high-throughput zoom lens, the mechanical structure of the lens includes a main lens barrel 4, a front group mirror holder 5 for installing the front group A, and a rear group mirror for installing the rear group B seat 8, the front group mirror seat 5 is movably installed in the main lens barrel 4, the outer side of the main lens barrel 4 is provided with a front cam 7 that drives the front group mirror seat 5 to move back and forth, and the rear group mirror seat 8 is located The rear side of the front group mirror holder 5, the rear group mirror holder 8 is movably installed in the main lens barrel 4, and the outer side of the main lens barrel 4 is provided with a rear cam 15 that drives the rear group mirror holder 8 to move back and forth. An automatic aperture is arranged between the group lens base 5 and the rear group lens base 8, and the front guide nail 6 matched with the front group lens ...

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PUM

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Abstract

The invention relates to a large-target-surface automatic diaphragm zoom lens with high light flux, and an application method thereof. The mechanical structure of the large-target-surface automatic diaphragm zoom lens comprises a main lens barrel, a front-group lens seat used for installing a front group A and a rear-group lens seat used for installing a rear group B. The front-group lens seat is installed in the main lens barrel in a movable manner, the main lens barrel is sleeved with a front cam which drives the front-group lens seat to move forwards and backwards, the rear-group lens seat is arranged at the rear of the front-group lens seat, the rear-group lens seat is installed in the main lens barrel in a movable manner, the main lens barrel is sleeved with a rear cam which drives the rear-group lens seat to move forwards and backwards, an automatic diaphragm is arranged between the front-group lens seat and the rear-group lens seat, a front guide nail matched with the front-group lens seat and the front cam is arranged on the main lens barrel, a rear guide nail matched with the rear-group lens seat and the rear cam is arranged on the main lens barrel, a front locking nail used for fixing the front cam is arranged on the main lens barrel, and a rear locking nail used for fixing the rear cam is arranged on the main lens barrel. The large-target-surface automatic diaphragm zoom lens with high light flux has the advantages of ultra high definition, large target surface and large relative aperture, and the imaging resolution is up to 800 million pixels.

Description

technical field [0001] The invention relates to a zoom lens with large target surface automatic aperture and high-pass light quantity and a using method thereof. Background technique [0002] The rapid development of science and technology and the 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 technologies such as MPEG-4 and H.265, the rapid development of IP-based network transmission and the application of digital zoom technology, a series of high-definition cameras above 4K have been launched on the market. In the process of network transmission and digital zoom, 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 they have higher requirements for the resolution of the front-end lens. [0003] With the continuous ...

Claims

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Application Information

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IPC IPC(8): G02B7/10G02B15/167
Inventor 郑勇强何武强魏雄斌苏青年
Owner FUJIAN FORECAM OPTICS CO LTD
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