Focusing mechanism and lens comprising same

A focusing and lens barrel technology, used in installation, optics, instruments, etc., can solve problems such as poor performance, and achieve the effect of ensuring service life, large focusing range, and long service life

Pending Publication Date: 2018-02-09
NINGBO SUNNY INFRARED TECH COMPANY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to provide a focusing mechanism and a lens containing the mechanism, which can solve the problem of poor performance of the traditional focusing mechanism

Method used

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  • Focusing mechanism and lens comprising same
  • Focusing mechanism and lens comprising same
  • Focusing mechanism and lens comprising same

Examples

Experimental program
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Embodiment approach

[0038] Such as figure 1 As shown, according to an embodiment of the present invention, the lens of the present invention includes: a focusing mechanism 1 , a first lens group 2 and a second lens group 3 . In this embodiment, the first lens group 2 and the second lens group 3 are installed on the focusing mechanism 1 respectively. The adjustment of the distance between the first lens group 2 and the second lens group 3 is realized through the adjustment function of the focus adjustment mechanism 1 , thereby realizing the focus adjustment of the lens of the present invention.

[0039] Such as figure 1 As shown, according to an embodiment of the present invention, the focusing mechanism 1 of the present invention includes: a first lens barrel 11 , a second lens barrel 12 , an adjustment assembly 13 and a force application assembly 14 . In this embodiment, the second lens barrel 12 is slidably connected with the first lens barrel 11 . The aperture of the first lens barrel 11 is...

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Abstract

The invention relates to a focusing mechanism and a lens comprising same, wherein the focusing mechanism comprises a first lens barrel, a second lens barrel which is in sliding connection with the first lens barrel, an adjusting assembly for adjusting the position of the second lens barrel relative to the first barrel; and a force application assembly arranged between the first lens barrel and thesecond lens barrel. The force application assembly comprises a first component and a second component, which are mutually exclusive or attract each other. By the adoption of the force applying assembly, the moving position of the lens in the focusing process is accurate, and the imaging of the lens being stable and clear is guaranteed. A gap, between the first lens barrel and the second lens barrel, generated in the focusing process is eliminated by repulsive force or attraction force generated by the force applying assembly, and the backlash phenomenon in the lens focusing process is eliminated. By adopting the magnetic first component and the second component, abrasion is not generated between the first component and the second component, and the service life is long.

Description

technical field [0001] The invention relates to a focusing mechanism and a lens containing the mechanism, in particular to a focusing mechanism for manual focusing and a lens containing the mechanism. Background technique [0002] A large amount of data research results show that during the reciprocating movement of the focusing lens barrel, due to structural tolerances, the gap between the contact surfaces will produce a backlash phenomenon, which will cause imaging instability to the lens system. The traditional focusing lens eliminates the play between focusing. Gaps are metal springs. Metal springs take up a lot of space, and different types of lenses require customized metal springs of different sizes. At the same time, the production of metal springs also consumes a large amount of metal materials. During the focusing process, due to the use of metal springs, there will be noise in the lens, which will affect the stability and reliability of the system. Contents of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B7/105
CPCG02B7/105
Inventor 王昌龙马赫任和齐陈惠广
Owner NINGBO SUNNY INFRARED TECH COMPANY
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