Optical imaging lens

• Main Authors: ZHANG JIAXIN, CHEN JIAHONG, LIM MOOJONG
• Format: Patent
• Language: Chinese; English
• Published: 06.05.2022
• Subjects: OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS; OPTICS; PHYSICS

The optical imaging lens sequentially comprises a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens, an eighth lens and a ninth lens from an object side to an image side along an optical axis. The first lens has a positive refractive index, the second lens has a negative refractive index, the optical axis area of the image side surface of the fifth lens is a convex surface, the optical axis area of the image side surface of the seventh lens is a concave surface, and the eighth lens has a positive refractive index or the ninth lens has a negative refractive index. The optical imaging lens has the advantages of being small in aperture value, large in image height, small in size and good in imaging quality. 本发明公开了一种光学成像镜头，从物侧至像侧沿光轴依序包括第一透镜、第二透镜、第三透镜、第四透镜、第五透镜、第六透镜、第七透镜、第八透镜及第九透镜。第一透镜具有正屈光率，第二透镜具有负屈光率，第五透镜的像侧面的光轴区域为凸面，第七透镜的像侧面的光轴区域为凹面，第八透镜具有正屈光率或第九透镜具有负屈光率。该光学成像镜头具有较小的光圈值、较大的像高、较小的体积，且成像质量优良的特点。