Installation structure of wide-angle lens

A technology of installation structure and wide-angle lens, which is applied in installation, optics, instruments, etc., can solve problems such as difficulty in ensuring stability, and achieve the effect of easy assembly, reduced outer diameter, and caliber

Pending Publication Date: 2020-11-17
中山北方晶华精密光学有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, it is difficult to ensure the stability of a group with a large number of lenses using a single pressure ring. Therefore, how to overcome the above-mentioned defects has become an important issue to be solved urgently by those skilled in the art.

Method used

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  • Installation structure of wide-angle lens
  • Installation structure of wide-angle lens
  • Installation structure of wide-angle lens

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Embodiment Construction

[0022] The features of the present invention and other relevant features are described in further detail below through the embodiments, so as to facilitate the understanding of those skilled in the art:

[0023] Such as Figure 1 to Figure 6 As shown, a wide-angle lens installation structure includes a lens barrel 1, and the lens barrel 1 is sequentially provided with an annular stop protrusion 10, a first circular channel 11, and a second circular channel from the image side to the object side. Channel 12, the third circular channel 13, the fourth circular channel 14, the inner diameter of the first circular channel 11, the inner diameter of the second circular channel 12, the inner diameter of the third circular channel 13, the fourth circular channel The inner diameter of the channel 14 is arranged from small to large, and the first meniscus lens 21, the second double-convex lens 22, the first spacer 3, and the third double-lens lens are installed in the lens barrel 1 in or...

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Abstract

The invention discloses an installation structure of a wide-angle lens, which is simple in structure and easy to achieve, the arrangement of a sixth meniscus lens enables large-angle light entering anoptical lens to be well turned back, the reduction of the aperture of the optical lens becomes possible, the realization of a wide-angle function is facilitated, and the arrangement of a fifth meniscus lens is convenient for further turning back the light. The outer diameter of the rear-end lens can be reduced; a fourth biconvex lens, a third biconvex lens, a second biconvex lens and a first meniscus lens are arranged, so that subsequent imaging is facilitated; during assembly, the first meniscus lens, the second biconvex lens, the first space ring, the third biconvex lens, the second space ring, the fourth biconvex lens, the fifth meniscus lens, the third space ring and the sixth meniscus lens are sequentially abutted against the lens cone so as to keep the distance between the lenses, and the lens is stable and practical.

Description

technical field [0001] The invention relates to an installation structure of a wide-angle lens. Background technique [0002] With the widespread application of lenses in monitoring, industrial inspection, intelligent transportation, scanning and copying equipment, and photographic cameras, the demand for lenses is getting higher and higher. It is required that the imaging of the lens should be clear, and the quality of the lens with high requirements will definitely be used more. Lenses for optical imaging. However, it is difficult to ensure the stability of a group with a large number of lenses using a single pressure ring. Therefore, how to overcome the above-mentioned defects has become an important issue to be solved urgently by those skilled in the art. Contents of the invention [0003] The present invention overcomes the disadvantages of the above technologies and provides a wide-angle lens installation structure. [0004] To achieve the above object, the present...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B13/06G02B7/02
CPCG02B7/021G02B7/026G02B13/06
Inventor 袁志峰秦朝锋汤华锡胡书贤石妹吴志坚阳术刚
Owner 中山北方晶华精密光学有限公司
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