Periscopic camera module, lens group and mobile terminal

Abstract

The invention provides a periscopic camera module, a lens group and a mobile terminal. The periscopic camera module comprises a casing and an optical system, wherein the optical system is provided with a first optical axis and a second optical axis, the optical system comprises a prism, the lens group and an image sensor, and the prism is provided with a light incident surface, a light emergent surface and a reflection inclined surface. A rectangular window matched with the reflection inclined plane is arranged on the casing, and the lens group comprises a plurality of rectangular lenses matched with a reflection light field of the reflection inclined plane. The rectangular window matched with the prism is arranged on the shell, so that stray light entering the prism from the rectangular window can be reduced, and the imaging quality is prevented from being influenced. By means of the periscopic camera module, the lens group is formed by using the rectangular lens, and the rectangularlens is matched with the reflection light field of the prism, so that the effective utilization area of the rectangular lens can be increased, the rectangular lens can be manufactured to be smaller than a circular lens under the condition that the same reflection light field is transmitted, and the periscopic camera module can be manufactured to be smaller in size.

Description

technical field [0001] The present application belongs to the field of camera technology, and more specifically relates to a periscope camera module, lens group and mobile terminal. Background technique [0002] In order to improve the camera effect of mobile terminals such as tablet computers and smart phones, a periscope camera module is often installed in the mobile terminal. In addition, as the mobile terminal becomes thinner and thinner, the volume of the camera module of the corresponding mobile terminal also needs to be made smaller and smaller. The current lens is made of circular lens and circular lens barrel, while the prism in the periscope camera module often needs to be made smaller, and its reflection area is often a rectangular area, and the corresponding reflected light field is also a rectangular light field. . When the light field reflected by the prism passes through the circular lens group, only the partial area in the middle of each circular lens is of...

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Problems solved by technology

[0003] The purpose of the embodiment of the present application is to provide a periscope camera module to solve the problems in the related art that the use area of ​​the circular lens of the periscope camera module is small, and the size of the circular lens is large, which causes the periscope The problem of large size of the camera module

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