Cell phone imaging lens

Abstract

The invention discloses an imaging lens for a mobile phone, which comprises a lens barrel (100), in which a first lens (1), a diaphragm (2), a first shading paper (3), second lens (4), second shading paper (5), third lens (6) and spacer (7), the first lens (1) is a plastic non- A spherical lens, and the side of the first lens (1) facing the object side is a convex surface; the second lens (4) is a meniscus plastic aspheric lens with a positive focal length, and the second lens (4) The side facing the object side is a concave surface, and the side facing the image side is a convex surface; the third lens (6) is a plastic aspheric lens with a negative focal length, and the third lens (6) faces the object The side surface is convex, and the side facing the image side is concave. The invention has the advantages of simple structure, large viewing angle and high image quality.

Description

【Technical field】 [0001] The invention relates to an imaging lens for a mobile phone. 【Background technique】 [0002] Driven by science and technology, the integration of photosensitive devices has been greatly improved, reducing their size. These small-sized photosensitive elements are widely used in smart phones or computers. Mobile phones have a camera function, and computers have a video function. The convenience and portability of mobile phones has drawn people's attention to the camera performance of mobile phones. Therefore, camera performance has become the primary consideration for consumers when choosing mobile phones. People's high attention to spiritual life has set off fierce competition in the optical design industry, making mobile phone lenses continue to develop in the direction of miniaturization, high pixels, and large field of view. [0003] At present, the mobile phone lenses on the market generally have the following disadvantages: the mainstream mobi...

AI Technical Summary

Problems solved by technology

[0003] At present, the mobile phone lenses on the market generally have the following disadvantages: the mainstream mobile phones on the market generally have three lenses from the object side to the image side, the first lens is a positive lens, the second lens is a negative lens, and the third lens is a positive lens. The structure of positive, negative and positive is adopted, so that the field of view is mostly concentrated around 70°, and the field of view is small. Therefore, within the scope of the viewfinder, a longer shooting distance is required to complete the viewfinder. Quality will inevitably decrease, sacrificing image quality

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