Optical industrial lens with high resolution and low distortion

A high-resolution, lens technology, applied in optics, optical components, installation, etc., can solve problems such as large distortion, unclear edge of field of view, and failure to meet market demand, and achieve the effect of small distortion and simple structure

Active Publication Date: 2017-02-22
FUJIAN FUGUANG TIANTONG OPTICS
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Problems solved by technology

[0002] The high-definition industrial lenses on the existing market have the disadvantages of large disto

Method used

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  • Optical industrial lens with high resolution and low distortion
  • Optical industrial lens with high resolution and low distortion
  • Optical industrial lens with high resolution and low distortion

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Embodiment Construction

[0022] In order to make the above-mentioned features and advantages of the present invention more comprehensible, the following specific embodiments are described in detail with reference to the accompanying drawings, but the present invention is not limited thereto.

[0023] refer to Figure 1 to Figure 5

[0024] A high-resolution and low-distortion optical industrial lens, comprising a front set of lenses A, a variable diaphragm 20 and a rear set of lenses B arranged sequentially in the lens structure along the incident direction of light. Convex lens 32, negative crescent lens 30, the first biconcave lens 29, the second biconvex lens 26, the first positive crescent lens 24 are made up of, and described back group eyeglass is followed by the second biconcave lens 15 and the 3rd biconvex lens 14 tight contact The cemented group, the second positive crescent lens 13 and the fourth double-convex lens 12 are composed.

[0025] In this embodiment, the air gap between the first...

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Abstract

The invention relates to an optical industrial lens with high resolution and low distortion. The optical industrial lens comprises a front lens, an iris diaphragm and a rear lens which are sequentially arranged in a direction of light incident within a lens structure. The front lens comprises a first pair of convex lens, a negative crescent-shaped lens, a pair of concave lens, a second pair of convex lens and a first positive crescent-shaped lens. The rear lens comprises a second pair of concave lens and a third pair of convex lens which are glued seriously, a second positive crescent-shaped lens and a fourth pair of convex lens. The optical industrial lens with high resolution and low distortion has the advantage of simple structure and reducing the distortion of close-up scene shooting.

Description

technical field [0001] The invention relates to a high-resolution and low-distortion optical industrial lens. Background technique [0002] The high-definition industrial lenses on the existing market have the disadvantages of large distortion and unclear edges of the field of view, which have begun to fail to meet the existing market demand. Contents of the invention [0003] The object of the present invention is to provide a high-resolution and low-distortion optical industrial lens, which not only has a simple structure, but also reduces the distortion of close-up scenes. [0004] The technical solution of the present invention is: a high-resolution and low-distortion optical industrial lens, including a front group of lenses, a variable diaphragm and a rear group of lenses arranged in sequence along the incident direction of light in the lens structure, and the front group of lenses is sequentially arranged It consists of a first biconvex lens, a negative crescent le...

Claims

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Application Information

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IPC IPC(8): G02B13/00G02B7/04
CPCG02B7/04G02B13/0015
Inventor 陈龙何武强郑勇强张新彬
Owner FUJIAN FUGUANG TIANTONG OPTICS
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