optical imaging system

An optical imaging system, optical axis technology, applied in optics, optical components, instruments, etc., can solve problems such as limiting the miniaturization of optical imaging systems and hindering the development of miniaturization of smartphones, and achieve miniaturized imaging quality and good imaging quality. , the effect of optimizing optical parameters
CN112748544BActive Publication Date: 2022-05-03ZHEJIANG SUNNY OPTICAL CO LTD
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Patents(China)
Current Assignee / Owner
ZHEJIANG SUNNY OPTICAL CO LTD
Publication Date
2022-05-03

Smart Images

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Abstract

The present application discloses an optical imaging system, which sequentially includes from the object side to the image side along the optical axis: a prism, a diaphragm, and a first lens with refractive power, a second lens, a third lens, and a fourth lens , the fifth lens, the sixth lens and the seventh lens. The prism reflects light incident to the prism along the first direction to exit the prism along the second direction. The diaphragm to the seventh lens are sequentially arranged along the second direction from the prism to the image side. The second lens has positive power, and its image side is concave; the third lens has negative power; the fourth lens has negative power, and its image side is concave; the fifth lens has positive power. At least one of the mirror surfaces from the object side of the first lens to the image side of the seventh lens is an aspheric mirror.
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Description

technical field

[0001] The present application relates to the field of optical elements, in particular, to an optical imaging system. Background technique

[0002] In recent years, portable electronic products such as smart phones have developed rapidly, and users have increasingly strict requirements on the functions of smart phones, especially the camera function of mobile phones. With the development trend of miniaturization of smart phones, the optical imaging system mounted on smart phones tends to develop in the direction of high-definition and miniaturization. Traditionally, in order to achieve high-definition optical imaging systems, it is necessary to increase the total length of the optical imaging system to increase its zoom factor, but this will severely limit the development of the miniaturization of the optical imaging system, thereby hindering the development of the miniaturization of smartphones. Contents of the invention

[0003] One aspect of the present...

Claims

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