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High-resolution economic 2.6mm lens

A high-resolution and economical technology, used in optical components, optics, instruments, etc., can solve the problems of difficult assembly and low technical indicators, and achieve the effect of reducing assembly difficulty, reducing production costs, and ensuring assembly fixation.

Inactive Publication Date: 2016-01-13
FUJIAN FORECAM OPTICS CO LTD
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0003] In order to overcome the defects of low technical index and difficult assembly of existing camera lenses, the present invention provides a high-resolution economical 2.6mm lens

Method used

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  • High-resolution economic 2.6mm lens

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Embodiment Construction

[0016] Such as Figure 1~2 As shown, the high-resolution economical 2.6mm lens includes a main lens barrel 8, and the lens group front group A and the lens group front group B are sequentially arranged in the main lens barrel 8 along the light incident direction, and the lens group front group A diaphragm 5 is arranged between A and the front group B of the lens group, and a filter 6 is arranged at the rear end of the front group B of the lens group.

[0017] In this embodiment, the front group A includes a biconvex lens A-11 and a biconvex lens A-22 arranged in sequence along the incident direction of light, and the rear group B includes biconvex lenses B-13 and A-22 arranged in sequence along the incident direction of light. Negative crescent lens B-24 cemented with biconvex lens B-13.

[0018] In this embodiment, the air gap between the front group A and the rear group B is 0.91 mm, and the air gap between the biconcave lens A-11 and the biconvex lens A-22 is 5.31 mm.

[...

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Abstract

The invention relates to a high-resolution economic 2.6mm lens, comprising a main lens barrel, wherein a front lens set A and a front lens set B are sequentially arranged in the main lens barrel in the incident light direction, a diaphragm is arranged between the front lens set A and the front lens set B, and a filter is arranged at the rear end of the front lens set B. The lens is simple in structure and small in number, can reach high-quality pixels by day, and can also ensure high quality of images through infrared supplementation in poor light or at night; and the lens is made of a little glass, so the assembly difficulty of the lens is relieved and the production cost is reduced.

Description

technical field [0001] The invention relates to a high-resolution economical 2.6mm lens. Background technique [0002] The network camera was born in the mid-1990s. The lens is the main component of the camera, and its performance directly affects the image quality. In the early days, there were a variety of fixed-focus lenses used in security systems in the market. However, due to the low optical performance indicators of many products, most of them are low-end products, which can only be adapted to ordinary cameras with low pixels. It is difficult to achieve the advantages of large wide-angle, high resolution, day and night confocal, and fewer lenses. Contents of the invention [0003] In order to overcome the defects of low technical index and high assembly difficulty of the existing camera lens, the invention provides a high-resolution and economical 2.6mm lens. [0004] The technical scheme of the present invention is that the high-resolution economical 2.6mm lens i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B13/00
CPCG02B13/0015G02B13/008
Inventor 王烨潘俊达罗仁杨樊俊兰
Owner FUJIAN FORECAM OPTICS CO LTD
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