Optical lens, image capturing device and electronic device

• Main Authors: CAI WENYOU, HONG YUJIE, DENG JUNHONG, TANG XIANGQI
• Format: Patent
• Language: Chinese; English
• Published: 16.06.2023
• Subjects: OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS; OPTICS; PHYSICS

The utility model provides an optical lens, an image capturing device and an electronic device. The optical lens comprises at least one optical element. At least one optical element is provided with a multi-layer coating film, and the multi-layer coating film is formed by alternately stacking high-refractive-index film layers and low-refractive-index film layers. And the multi-layer coating film is a two-way filtering coating film. Therefore, according to the optical lens provided by the utility model, a multilayer coating technology is applied to an optical element, visible light and specific infrared light can penetrate through and other wave band light can be filtered through a bi-pass filtering coating technology, and the optical lens has imaging and near-infrared light sensing functions. 本实用新型提供一种光学镜头、取像装置及电子装置，光学镜头包含至少一光学元件。至少一所述的光学元件具有一多层镀膜，且多层镀膜为高折射率膜层及低折射率膜层交替堆叠。所述的多层镀膜为一双通滤除镀膜。借此，本实用新型的光学镜头以多层镀膜技术应用于光学元件，通过双通滤除镀膜技术，可使可见光与特定红外光穿透并滤除其他波段光，有助于光学镜头兼具成像及近红外光感应功能。