Optical imaging lens

Abstract

The present invention discloses an optical imaging lens. The optical imaging lens comprises in order from an object side to an image side: a first lens, a second lens, a third lens and a fourth lens.The concave-convex arrangement of the surfaces of the four lenses are designed to allow the whole length of the optical imaging lens to be small and allow the aperture value of the optical imaging lens to be small, and the optical imaging lens can take the consideration of imaging quality and optical performances.

Description

technical field [0001] The invention relates to the field of optical imaging, in particular to an optical imaging lens. Background technique [0002] The specifications of consumer electronic products are changing with each passing day, and the pursuit of lightness, thinness and compactness has never slowed down. Therefore, the specifications of key components of electronic products such as optical lenses must continue to improve in order to meet the needs of consumers. The most important characteristics of an optical lens are image quality and volume. In addition, increasing the field of view and expanding the aperture are also becoming more and more important. As far as image quality is concerned, with the advancement of image sensing technology, consumers’ requirements for image quality will also increase. Therefore, in addition to pursuing thinner optical lenses, the image quality and performance of the lens must also be taken into account when designing optical lenses. ...

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Problems solved by technology

[0003] However, optical lens design does not simply reduce the proportion of a lens with good imaging quality to produce an optical lens with both image quality and miniaturization. The design process not only involves material characteristics, but also production and assembly yields. practical problems

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