Telescopic zoom lens

A technology of zoom lens and zoom lens, which is applied in the field of optical lens, and can solve the problems of small lens diameter and total length of zoom lens, etc.

Pending Publication Date: 2021-03-16
中山联合光电研究院有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The main purpose of the present invention is to propose a telescopic zoom lens, which aims to solve the p

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Embodiment Construction

[0034] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0035] It should be noted that if there is a directional indication (such as up, down, left, right, front, back...) in the embodiment of the present invention, the directional indication is only used to explain the position in a certain posture (as shown in the accompanying drawing). If the specific posture changes, the directional indication will also change accordingly.

[0036] In addition, if there are descriptions involving "first", "second" and ...

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Abstract

The invention discloses a telescopic zoom lens. The telescopic zoom lens comprises a shell, a mounting channel is formed in the shell, one end of the mounting channel is an object side end, and a first zoom assembly, a second zoom assembly, a focusing assembly and a third zoom assembly are sequentially arranged in the mounting channel from the object side end; the first zoom assembly comprises a first zoom lens cone and a first zoom lens arranged in the first zoom lens cone; the second zoom assembly comprises a second zoom lens cone and a second zoom lens arranged in the second zoom lens cone;the focusing assembly comprises a focusing lens cone and a focusing lens arranged in the focusing lens cone; the first zoom assembly comprises a third zoom lens cone and a third zoom lens arranged inthe third zoom lens cone; and the first zoom lens cone, the second zoom lens cone, the focusing lens cone and the third zoom lens cone are adjustably arranged along the depth direction of the mounting channel. The lens cones can stretch out and draw back, the length of the device is reduced, and a large zoom ratio and a large light inlet flux are guaranteed.

Description

technical field [0001] The invention relates to the technical field of optical lenses, in particular to a telescopic zoom lens. Background technique [0002] Currently, mobile phones sold on the market are equipped with multiple optical camera modules. The optical system of the traditional mobile phone camera modules is designed to be fixed-focus, and later developed zoom modules with movable lens groups. The thickness of the mobile phone has a certain limit, which makes the moving range of the movable lens relatively limited. In order to overcome the disadvantage that the moving range of the movable lens group is limited by the thickness of the mobile phone, the research and development personnel proposed a zoom lens with a periscope structure. This structure introduces The right-angle reflective prism, an optical element, reflects the incident light through the reflective prism and conducts it perpendicular to the thickness of the mobile phone, which greatly lengthens the ...

Claims

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Application Information

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IPC IPC(8): G02B7/09
CPCG02B7/09
Inventor 王玉吕强孔旭东姚宏辉李昆王浩肖明志邱盛平龚俊强
Owner 中山联合光电研究院有限公司
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