Large-aperture wide-angle optical system and camera module applied by same

A wide-angle optical system and optical system technology, applied in the field of large-aperture wide-angle optical system and its applied camera module, can solve the problems of complex structure and too many lenses, and achieve the effect of less number of lenses, reduced front port diameter, and simple structure

Pending Publication Date: 2019-10-11
GUANGDONG HONGJING OPTOELECTRONICS TECHONLOGY CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In order to overcome the common problems of too many lenses and complex structures in the existing optical systems or modules used in the vehicle field, the embodiments of the present invention provide a large aperture wide-angle optical system on the one hand

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  • Large-aperture wide-angle optical system and camera module applied by same
  • Large-aperture wide-angle optical system and camera module applied by same
  • Large-aperture wide-angle optical system and camera module applied by same

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Embodiment Construction

[0026] In order to make the technical problems, technical solutions and beneficial effects solved by the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0027] When ordinal numerals such as "first" and "second" are mentioned in the embodiments of the present invention, unless they really express the meaning of order according to the context, it should be understood that they are only used for distinction.

[0028] In the description of the present invention, it should be noted that unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected, or integrally connected; it...

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Abstract

An embodiment of the present invention discloses a large-aperture wide-angle optical system. The optical system comprises the following parts from an object plane to an image plane along an optical axis: a first lens, a diaphragm, a second lens, a third lens, a fourth lens, a fifth lens, and a sixth lens. In addition, an embodiment of the present invention further provides a camera module. The large-aperture wide-angle optical system mainly comprises six lenses, so that the optical system has a small quantity of lenses, a simple structure, and low costs; and the diaphragm is between the firstlens and the second lens, which helps to shorten a front end aperture, so that an overall shape is moderate. In addition, the diaphragm is disposed near the front, different lenses are combined with each other, and a focal power is reasonably assigned, so that the optical system has optical performance such as being large in bore diameter, high in resolution, large in aperture, and good in athermalization, and is suitable for the automotive lens field.

Description

Technical field: [0001] The invention relates to an optical system and a camera module for its application, in particular to a large aperture and wide-angle optical system and a camera module for its application in the field of vehicles. Background technique: [0002] With the application and popularization of automotive safety driving systems, optical systems or modules in the automotive field have also been widely used. There are also more and more demands for application lenses used in front vehicle collision warning, track deviation warning, pedestrian recognition warning and so on. This type of optical system or module is required to be able to adapt to clear images in daytime and low-light environments, so the lens needs to consider a large aperture; at the same time, in order to meet the details of the wide field of view, the optical system or module needs to have a larger field of view and higher resolution pixels. However, the existing optical systems or modules u...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B13/00G02B13/06G02B13/18
CPCG02B13/0045G02B13/006G02B13/06G02B13/18
Inventor 刘洪海刘振庭汪鸿飞杜亮刘佳俊刘易黄楚文
Owner GUANGDONG HONGJING OPTOELECTRONICS TECHONLOGY CO LTD
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