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Lens

A lens and lens barrel technology, applied in the field of lenses, can solve problems such as stray light and affecting the imaging quality of the lens

Pending Publication Date: 2019-10-22
ZHEJIANG SUNNY OPTICAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the prior art, the solution of pre-diaphragm is often used to reduce the depth of VP point, but pre-positioning the diaphragm usually causes stray light phenomenon, which affects the imaging quality of the lens

Method used

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Embodiment Construction

[0027] In order to more clearly describe the embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings that are used in the embodiments. Apparently, the drawings in the following description are only some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to these drawings without creative efforts.

[0028] When describing the embodiments of the present invention, the terms "vertical", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", " The orientation or positional relationship expressed by "horizontal", "top", "bottom", "inner" and "outer" is based on the orientation or positional relationship shown in the relevant drawings, which are only for the convenience of describing the present invention and simplifying the description, and It is not to indicate or imply that the device or element referred to must have a particu...

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Abstract

The invention relates to a lens which comprises a lens barrel (1) and a lens group arranged in the lens barrel (1), the lens barrel (1) comprises a first cylinder wall (11) and a second cylinder wall(12) bending and extending along the first cylinder wall (11), the lens group at least comprises a first lens body (2) close to the image side of the first cylinder wall (11), a shade disc is arrangedbetween the first cylinder wall (11) and a non-optic effective path of the first lens body (2), and the shade disc abuts against the image side surface of the first cylinder wall (11) and / or the object side surface of the non-optic effective path of the first lens body (2). According to the lens, the shade disc is arranged between the first lens barrel and the first lens body, stray light can beeffectively reduced, the quality of a finished product is improved, the self intensity of the shade disc in the lens is high, and the shade disc tends not to deform when being assembled between the first lens cylinder and the first lens, the shading effect is further reduced, and the imaging quality of the lens is improved.

Description

technical field [0001] The invention relates to the field of optical imaging, in particular to a lens. Background technique [0002] At present, full-screen mobile phones are increasingly favored by the public, and continuously improving the screen-to-body ratio of mobile phones has gradually become one of the mainstream directions of industry research. At present, by reducing the VP point depth of the front camera of the mobile phone, the opening diameter of the front camera lens on the screen of the mobile phone can be further reduced, thereby increasing the screen-to-body ratio of the mobile phone. However, in the prior art, the solution of pre-diaphragm is often used to reduce the VP point depth, however, pre-positioning the diaphragm usually causes stray light phenomenon, which affects the imaging quality of the lens. Therefore, how to reduce stray light and improve the imaging quality of the lens is also the direction that the industry has been pursuing. Contents of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03B11/00G02B7/00
CPCG03B11/00G02B7/00
Inventor 方荣波戴付建赵烈烽
Owner ZHEJIANG SUNNY OPTICAL CO LTD
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