Optical lens

Abstract

The invention relates to an optical lens, aims to overcome the defects in the prior art, and provides a high-image quality micro aspheric optical lens which is high in pixel and small in size, can be used for a digital camera and a mobile phone, and has a mixed lens structure. The lens comprises a lens cone, a bearing and a diaphragm; a first lens, a second lens, a third lens and a fourth lens are sequentially arranged in the lens cone from inside to outside; the first lens is a biconvex aspheric lens; the second lens has a section which is a falcate spherical surface; the third lens has a section which is a hyperbolic aspheric surface; and the fourth lens has a section which is a hyperbolic aspheric surface. The optical lens is mainly applied to camera cell phones.

Description

【Technical Field】 [0001] The invention relates to an optical lens, in particular to a high-quality micro aspheric optical lens with a hybrid lens structure applied to a micro-optical lens of a high-pixel mobile phone and a high-quality camera. 【Background technique】 [0002] Currently used cameras and mobile phone digital lenses generally have such shortcomings: relatively low pixels and large external dimensions. The mainstream camera phones on the market are mainly low profile lenses with 100,000 and 300,000 pixels. The image quality of the captured images is not ideal in terms of overall clarity or uniformity of illumination. They can only be used as standby images or Generally appreciated, it is far from satisfying to print beautiful photos. [0003] Moreover, the shape of the digital lens for camera phones is too large, the outer diameter is generally greater than 8mm, and the high-pixel chip is limited to the use of CCD photosensitive film, and the CCD photosensitive technol...

AI Technical Summary

Problems solved by technology

[0002] Currently used cameras and mobile phone digital lenses generally have such shortcomings: relatively low pixels, large dimensions

The current mainstream camera phones in the market are mainly 100,000 and 300,000-pixel low-profile lenses. The image quality of the captured images is not ideal in terms of overall clarity or uniformity of illumination, and can only be used as a standby screen or Appreciation in general, far from satisfied to print fine prints

[0003] In addition, the digital lens for camera phones is relatively large in shape, and the outer diameter is generally greater than 8mm, and the use of high-pixel chips is limited to the use of CCD photosensitive sheets, and CCD photosensitive technology is controlled by Japanese manufacturers. It is very difficult to obtain advanced products. The lens of the CCD photosensitive film is relatively long, and the total length of the optical system is greater than 8mm, which is relatively large when used on a built-in camera phone.

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