Appearance design and assembly method of light-weight continuous zooming lens

A zoom lens, lightweight technology, applied in installation, optics, instruments, etc., can solve the problems of poor stability and reliability of the zoom movement mechanism, poor regional applicability, poor stability and reliability of the optical axis, etc. , to achieve high-efficiency live recording and monitoring tasks, short lens structure length, and low production cost

Pending Publication Date: 2019-04-16
FUJIAN FUGUANG TIANTONG OPTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Although the current continuous zoom infrared lens has a continuous zoom function, most of them have the following defects: 1. Complex structure, heavy weight, and large volume; 2. Parfocal is greatly affected by temperature and poor regional applicability; 3. Zoom movement mechanism Poor stability and reliability
Ordinary continuous zoom infrared lens, due to the large zoom mechanism and low processing accuracy, the matching accuracy is poor, the movement resistance is large, and the stability and reliability of the optical axis during the zooming process are not good.

Method used

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  • Appearance design and assembly method of light-weight continuous zooming lens
  • Appearance design and assembly method of light-weight continuous zooming lens
  • Appearance design and assembly method of light-weight continuous zooming lens

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Embodiment Construction

[0019] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0020] Example: such as Figure 1~2 As shown, in this embodiment, a lightweight continuous zoom lens is provided, including a lens body, in which a positive lens A23, a negative lens B22, a positive lens C19, a negative lens D14 and Positive lens E13.

[0021] In this embodiment, the lens body includes an A-piece lens holder 2, the positive lens A23 is installed on the A-piece lens holder 2, the rear end of the A-piece lens holder 2 is threadedly connected to the main lens barrel 4, and the A A sealing ring 3 for waterproofing is installed between the lens holder 2 and the main lens barrel 4; in addition, the lens holder A and the main lens barrel are connected by threads, and the air distance between the two is rotated by threads.

[0022] In this embodiment, a variable magnification carriage 20 is provided inside the main barrel 4...

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Abstract

The invention provides an appearance design and assembly method of a light-weight continuous zooming lens, which comprises a lens body, wherein the lens body is internally provided with a positive lens A, a negative lens B, a positive lens C, a negative lens D and a positive lens E in sequence along the light incident direction. The light-weight continuous zooming lens has the advantages of simplestructure, reasonable design, compact structure, convenient carrying, high transmittance, low manufacturing cost and practicability.

Description

technical field [0001] The invention relates to a lightweight continuous zoom lens appearance design and an assembly method thereof. Background technique [0002] Uncooled infrared products are widely used today. Because of their all-weather day and night observation capabilities, they are widely used in monitoring, investigation, forest fire prevention and many other fields. Compared with cooled infrared products, uncooled thermal imaging cameras do not need to cool the detector, are convenient to use, have a wide range of applications, are cheap, and are more suitable for the civilian market. The continuous zoom uncooled infrared lens is an important part of the infrared thermal imager. Because it can clearly image both far and near targets, it provides users with the most suitable picture and field of view. It is getting more and more attention in security and forest fire prevention. application. [0003] Although the current continuous zoom infrared lens has a continuo...

Claims

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Application Information

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IPC IPC(8): G02B15/173G02B7/09G02B7/10
CPCG02B7/09G02B7/10G02B15/173
Inventor吴照斌杨为锦阮诗娟
OwnerFUJIAN FUGUANG TIANTONG OPTICS