公开(公告)号：US20250130399A1

公开(公告)日：2025-04-24

申请号：US18915368

申请日：2024-10-15

Applicant: SHENZHEN METALENX TECHNOLOGY CO.,LTD

Inventor： Chunyu WANG ,  Heshan LIN ,  Chenglong HAO ,  Fengze TAN ,  Jian ZHU

IPC: G02B13/00 ,  G02B1/00 ,  G02B1/02 ,  G02B9/12 ,  G03B17/12

Abstract: An optical system and an optical camera are provided, and the optical system includes three optical elements. Along the optical axis in order from an object plane to an image plane, the three optical elements include: a first sulfur refractive lens, a metalens and a second sulfur refractive lens; each of three optical elements includes an object-side surface facing towards the object plane and an image-side surface facing towards the image plane; the first sulfur refractive lens and the second sulfur refractive lens are even aspheric optical lenses; the object-side surface of the first sulfur refractive lens is a convex surface; each of the object-side surface of the second sulfur refractive lens and the image-side surface of the second sulfur refractive lens includes one inflection point; the first sulfur refractive lens, the metalens and the second sulfur refractive lens have positive focal power.

公开(公告)号：US20250138162A1

公开(公告)日：2025-05-01

申请号：US18923637

申请日：2024-10-22

Applicant: SHENZHEN METALENX TECHNOLOGY CO.,LTD

Inventor： Xiaobo ZHAO ,  Heshan LIN ,  Chenglong HAO ,  Fengze TAN ,  Jian ZHU

IPC: G01S7/481 ,  G01S17/42 ,  G01S17/894 ,  G02B1/00

Abstract: An optical system for ToF and a depth camera of ToF are provided, and the optical system including two optical elements. The two optical elements along the optical axis in order from an object side to an image side include: a filter and a metalens; each of two optical elements includes an object-side surface facing towards the object side and an image-side surface facing towards the image side; the metalens includes a substrate and a plurality of unit cells; and a plurality of nanostructures are set on a vertex and center of the unit cells of the metalens; the optical system includes an aperture slot, and the aperture slot is set on an incident direction of an optical path of the metalens; the optical system satisfies the following condition: f D ≤ 1.2 ; f is a focal length of the optical system, and D is an entrance pupil diameter of the optical system.

公开(公告)号：US20250085533A1

公开(公告)日：2025-03-13

申请号：US18811758

申请日：2024-08-21

Applicant: SHENZHEN METALENX TECHNOLOGY CO.,LTD

Inventor： Chunyu WANG ,  Heshan LIN ,  Xiang LI ,  Zhenyu YANG ,  Chenglong HAO ,  Fengze TAN ,  Jian ZHU

IPC: G02B27/00 ,  H04N23/20 ,  H04N23/55

Abstract: An optical system and an optical camera working at a far-infrared waveband are provided, the optical system along the optical axis from the objection side to the image side includes: a metalens and a spherical lens; the metalens is configured to correct higher-order residual wavefront aberrations; the spherical lens is configured to correct lower-order primary wavefront aberrations; the metalens and the spherical lens are configured to correct aberrations; an absolute value of the curvature radius of an objection-side surface towards the objection side for the spherical lens is greater than an absolute value of the curvature radius of an image-side surface towards the image side for the spherical lens; the optical system satisfies the following condition: 0.83≤f/D≤0.92; where f is an effective focal length of the optical system, and D is the entrance pupil diameter of the optical system.