Camera Optical Lens

Abstract

The invention discloses a photographic optical lens, which sequentially comprises from the object side to the image side: a first lens with positive refractive power, a second lens with negative refractive power, a third lens, and a fourth lens, The fifth lens, the sixth lens with positive refractive power and the seventh lens with negative refractive power; the first lens is made of glass, the second lens is made of plastic, the third lens is made of glass, and the fourth lens is made of plastic, The fifth lens is made of plastic material, the sixth lens is made of plastic material, and the seventh lens is made of plastic material; the Abbe number of the first lens is v1, the Abbe number of the third lens is v3, and the axial thickness of the seventh lens is d13 , the axial distance from the image side of the sixth lens to the object side of the seventh lens is d12, which satisfies the following relationship: 59.00≤v1≤82.00; 59.00≤v3≤82.00; d12 / d13≥0.80. The imaging optical lens provided by the invention has good optical performance and at the same time satisfies the design requirements of large aperture, wide angle and ultrathinness.

Description

【Technical field】 [0001] The invention relates to the field of optical lenses, in particular to an imaging optical lens suitable for portable terminal equipment such as smart phones and digital cameras, as well as imaging devices such as monitors and PC lenses. 【Background technique】 [0002] In recent years, with the rise of smart phones, the demand for miniaturized photographic lenses is increasing day by day, and the photosensitive devices of general photographic lenses are nothing more than Charge Coupled Device (CCD) or Complementary Metal Oxide Semiconductor (Complementary Metal Semiconductor) -Oxide Semiconductor Sensor, CMOS Sensor), and due to the improvement of semiconductor manufacturing process technology, the pixel size of the photosensitive device has been reduced, and the current electronic products have a trend of good functions and light, thin and short appearance. Therefore, with Miniaturized camera lenses with good imaging quality have become the mainstrea...

AI Technical Summary

Problems solved by technology

However, with the development of technology and the increase of diversified needs of users, as the pixel area of ​​the photosensitive device continues to shrink, and the system’s requirements for imaging quality continue to increase, the seven-element lens structure gradually appears in the lens design. Common Although the seven-element lens already has good optical performance, its focal power, lens spacing and lens shape settings still have certain irrationality, resulting in a lens structure that cannot meet the requirements of large aperture, large aperture, and lens shape while having good optical performance. Ultra-thin, wide-angle design requirements

Images