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Lens barrel

A lens barrel and fixed mirror technology, applied in the field of lens barrels, can solve problems such as lens scrapping, rework, and assembly errors, and achieve the effects of reducing production man-hours, reducing production costs, and improving competitiveness

Inactive Publication Date: 2009-02-25
FOSHAN PREMIER SCI & TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In actual assembly on the production assembly line, stop screws, stop slots, guide pins, straight-in slots, guide slots, and lens groups need to be closely coordinated to be perfectly assembled. This process requires careful assembly to achieve Requirements, many situations will lead to assembly errors and need to be reworked, which is very likely to image the lens, and even the lens will be scrapped

Method used

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Embodiment Construction

[0012] The present invention will be further described in detail below in conjunction with the accompanying drawings.

[0013] Please refer to FIG. 2 , which is an exploded view of the lens barrel according to the embodiment of the present invention. The lens barrel can be used in conventional cameras, digital cameras, video cameras, and projectors, and in this embodiment, the lens barrel is used in projectors.

[0014] The lens barrel includes a rotating lens barrel 1 , a fixed lens barrel 2 , a lens group 3 and a guide 4 . The rotating lens barrel 1 and the fixed lens barrel 2 are hollow cylindrical. The fixed lens barrel 2 is fixed on the projector (not shown in the figure), and the rotating lens barrel 1 is sleeved outside the fixed lens barrel 2 and can rotate relative to the fixed lens barrel 2 . The lens group 3 is accommodated in the fixed lens barrel 2 . The guide 4 passes through the fixed lens barrel 2 and the rotating lens barrel 1 and is fixedly connected with ...

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Abstract

The invention provides a lens barrel including a fixing lens barrel and a rotating lens barrel, and a lens assembly can be accommodated in the fixing lens barrel. The rotating lens barrel can be rotationally sleeved outside the fixing lens barrel, and mutually matched limiting structures are respectively arranged on the fixing lens barrel and the rotating lens barrel and used for preventing the rotating lens barrel from axial excursion relative to the fixing lens barrel. Through adopting the structure, the assembly of the lens barrel becomes simple, and the production cost is reduced.

Description

technical field [0001] The invention relates to a lens barrel, in particular to a lens barrel used by an imaging device with a zoom system. Background technique [0002] A general projector zoom lens includes a lens barrel and a lens group. The lens barrel generally has two lens barrels, one lens barrel is fixed on the projector, and the other lens barrel can rotate at a certain angle relative to the fixed lens barrel. The rotatable lens barrel can be called a zoom lens barrel, the lens barrel fixed on the projector is a fixed lens barrel, and the zoom lens barrel is sleeved outside the fixed lens barrel. The lens group is accommodated in the fixed lens barrel. [0003] At present, the zoom lens barrel is made of metal. When the zoom lens barrel rotates relative to the fixed lens barrel, the relative position of the zoom lens barrel and the fixed lens barrel in the direction of the optical axis of the lens group must be fixed so that the zoom lens barrel only The fixed le...

Claims

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Application Information

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IPC IPC(8): G02B7/02G02B7/04
CPCG02B7/023G02B7/022G02B7/021
Inventor 陈嘉鸿王金清
Owner FOSHAN PREMIER SCI & TECH CO LTD
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