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WO-2026091238-A1 - BIONIC EYEBALL OPTICAL MODULE, CAMERA FOR SIMULATING HUMAN EYE, AND TEST APPARATUS

WO2026091238A1WO 2026091238 A1WO2026091238 A1WO 2026091238A1WO-2026091238-A1

Abstract

A bionic eyeball optical module, a camera for simulating a human eye, and a test apparatus. The bionic eyeball optical module comprises: a corneal lens (1), a dimming film (2) and an imaging lens group (4), which are arranged in sequence along an incident optical axis, wherein the distance between the dimming film (2) and a front surface of the corneal lens (1) ranges from 3 mm to 5 mm, and a light-transmitting area of the dimming film (2) can be adjusted; and the focal power of the corneal lens (1) is negative, and the overall focal power of the imaging lens group (4) is positive. By means of the combination of the corneal lens (1), the dimming film (2) and the imaging lens group (4), the optical module can simulate the imaging process of a human eye, thereby achieving an imaging effect similar to that of the human eye.

Inventors

  • YANG, LIU
  • GUO, WEIHAO
  • WANG, YANG
  • ZHANG, Shaoqian

Assignees

  • 歌尔科技有限公司

Dates

Publication Date
20260507
Application Date
20241209
Priority Date
20241031

Claims (10)

  1. A biomimetic eyeball optical module, characterized in that it comprises: A corneal lens (1), a dimming film (2), and an imaging lens group (4) are arranged sequentially along the incident optical axis. The distance between the dimming film (2) and the front surface of the corneal lens (1) is 3mm to 5mm. The light-transmitting area of the dimming film (2) is adjustable. The optical power of the corneal lens (1) is negative, and the overall optical power of the imaging lens group (4) is positive.
  2. According to claim 1, the bionic eyeball optical module is characterized in that the distance between the dimming film (2) and the front surface of the corneal lens (1) is 3.5 mm; or, The imaging lens group (4) includes at least one set of cemented lenses and at least one monolithic lens, wherein the refractive index of each lens in the imaging lens group (4) and the corneal lens (1) is greater than 1.5; or, Functional films are provided on the anterior and posterior surfaces of the corneal lens (1), the functional films being used to achieve infrared reflection of the bionic eyeball; preferably, the material of the functional films is magnesium fluoride; or, The field of view of the bionic eye optical module is less than 35°; or... The Abbe number of each lens in the imaging lens group (4) and the Abbe number of the corneal lens (1) are greater than 20; or, Each lens in the imaging lens group (4) and the corneal lens (1) are made of glass; or, It also includes a protective glass (5) located furthest from the corneal lens (1).
  3. According to any one of claims 1-2, the bionic eyeball optical module is characterized in that the curvature of the anterior surface of the corneal lens (1) ranges from 7.5 mm to 8.0 mm, the curvature of the posterior surface of the corneal lens (1) ranges from 6.5 mm to 7.0 mm, and/or the thickness of the corneal lens (1) ranges from 500 μm to 600 μm; preferably, The curvature of the anterior surface of the corneal lens (1) is 7.8 mm, and the curvature of the posterior surface of the corneal lens (1) is 6.7 mm.
  4. According to any one of claims 1-3, the bionic eyeball optical module is characterized in that the imaging lens group (4) includes a first lens (41) disposed adjacent to the dimming film (2) and a first cemented lens group disposed adjacent to the first lens (41); The optical power of the first lens (41) is positive; The first cemented lens group includes a second lens (42) and a third lens (43), wherein one of the second lens (42) and the third lens (43) has a positive optical power and the other lens has a negative optical power.
  5. According to claim 4, the bionic eyeball optical module is characterized in that a filter (3) is provided between the first lens (41) and the first cemented lens group, the filter (3) being used to absorb or reflect infrared light.
  6. According to claim 4, the bionic eyeball optical module is characterized in that the imaging lens group (4) further includes a fourth lens (44) and a fifth lens (45) arranged sequentially along the incident optical axis, wherein the fourth lens (44) is located on the light-emitting side of the first cemented lens group; The fourth lens (44) and the fifth lens (45) have opposite optical powers.
  7. According to claim 6, the bionic eye optical module is characterized in that the imaging lens group (4) further includes a second cemented lens group, which is located between the second lens (42) and the third lens (43); the second cemented lens group includes a sixth lens (46) and a seventh lens (47), wherein the optical power of one of the sixth lens (46) and the seventh lens (47) is positive, and the optical power of the other lens is negative.
  8. According to claim 7, the bionic eyeball optical module is characterized in that the front surface of the corneal lens (1) is convex and the rear surface of the corneal lens (1) is concave. The first lens (41) is a biconvex lens, and the curvature of the front surface of the first lens (41) is 30 to 33 times that of the rear surface of the first lens (41). The second lens (42) is a biconcave lens; The third lens (43) is a biconvex lens; The fourth lens (44) is a biconvex lens; The front surface of the sixth lens (46) is convex, the rear surface of the sixth lens (46) is concave, and the curvature of the front surface of the sixth lens (46) is 4 to 5 times the curvature of the rear surface of the sixth lens (46). The front surface of the seventh lens (47) is convex, the rear surface of the seventh lens (47) is concave, and the curvature of the rear surface of the seventh lens (47) is 8 to 9 times the curvature of the front surface of the seventh lens (47). The front surface of the fifth lens (45) is concave, the rear surface of the fifth lens (45) is convex, and the curvature of the rear surface of the fifth lens (45) is 3 to 4 times the curvature of the front surface of the fifth lens (45).
  9. A camera that simulates a human eye, characterized in that the camera that simulates a human eye includes a bionic eyeball optical module as described in any one of claims 1-8.
  10. A testing device simulating a human eye, characterized in that it includes a camera simulating a human eye as described in claim 9.

Description

Bionic eyeball optical module, camera simulating human eye and testing equipment This application claims priority to Chinese Patent Application No. 202411545909.5, filed on October 31, 2024, entitled "Bionic Eyeball Optical Module, Camera Simulating Human Eye and Testing Equipment", the entire contents of which are incorporated herein by reference. Technical Field This application relates to the field of bionic eye technology, and more specifically, to a bionic eye optical module, a camera simulating a human eye, and a testing device simulating a human eye. Background Technology Humans perceive the vast majority of information in the objective world through visual information obtained by their eyes. For various devices that simulate the human eye, how to achieve a realistic simulation of the human eye is a technical problem that urgently needs to be solved. Summary of the Invention In a first aspect, embodiments of this application provide a bionic eye optical module, including a corneal lens (1), a dimming film (2), and an imaging lens group (4) arranged sequentially along the incident optical axis. The distance between the dimming film (2) and the front surface of the corneal lens (1) is 3mm to 5mm, and the light-transmitting area of the dimming film (2) is adjustable. The optical power of the corneal lens (1) is negative, and the overall optical power of the imaging lens group (4) is positive. In some embodiments, the distance between the dimming film (2) and the front surface of the corneal lens (1) is 3.5 mm; or, The imaging lens group (4) includes at least one set of cemented lenses and at least one monolithic lens, wherein the refractive index of each lens in the imaging lens group (4) and the corneal lens (1) is greater than 1.5; or, Functional films are provided on the anterior and posterior surfaces of the corneal lens (1), the functional films being used to achieve infrared reflection of the bionic eyeball; preferably, the material of the functional films is magnesium fluoride; or, The field of view of the bionic eye optical module is less than 35°; or... The Abbe number of each lens in the imaging lens group (4) and the Abbe number of the corneal lens (1) are greater than 20; or, Each lens in the imaging lens group (4) and the corneal lens (1) are made of glass; or, It also includes a protective glass (5) located furthest from the corneal lens (1). In some embodiments, the curvature of the anterior surface of the corneal lens (1) ranges from 7.5 mm to 8.0 mm, the curvature of the posterior surface of the corneal lens (1) ranges from 6.5 mm to 7.0 mm, and/or the thickness of the corneal lens (1) ranges from 500 μm to 600 μm; preferably, The curvature of the anterior surface of the corneal lens (1) is 7.8 mm, and the curvature of the posterior surface of the corneal lens (1) is 6.7 mm. In some embodiments, the imaging lens group (4) includes a first lens (41) disposed adjacent to the dimming film (2) and a first cemented lens group disposed adjacent to the first lens (41); The optical power of the first lens (41) is positive; The first cemented lens group includes a second lens (42) and a third lens (43), wherein one of the second lens (42) and the third lens (43) has a positive optical power and the other lens has a negative optical power. In some embodiments, a filter (3) is disposed between the first lens (41) and the first cemented lens group, the filter (3) being used to absorb or reflect infrared light. In some embodiments, the imaging lens group (4) further includes a fourth lens (44) and a fifth lens (45) arranged sequentially along the incident optical axis, wherein the fourth lens (44) is located on the light-emitting side of the first cemented lens group; The fourth lens (44) and the fifth lens (45) have opposite optical powers. In some embodiments, the imaging lens group (4) further includes a second cemented lens group located between the second lens (42) and the third lens (43); the second cemented lens group includes a sixth lens (46) and a seventh lens (47), wherein one of the sixth lens (46) and the seventh lens (47) has a positive optical power and the other lens has a negative optical power. In some embodiments, the front surface of the corneal lens (1) is convex, and the rear surface of the corneal lens (1) is concave; The first lens (41) is a biconvex lens, and the curvature of the front surface of the first lens (41) is 30 to 33 times that of the rear surface of the first lens (41). The second lens (42) is a biconcave lens; The third lens (43) is a biconvex lens; The fourth lens (44) is a biconvex lens; The front surface of the sixth lens (46) is convex, the rear surface of the sixth lens (46) is concave, and the curvature of the front surface of the sixth lens (46) is 4 to 5 times the curvature of the rear surface of the sixth lens (46). The front surface of the seventh lens (47) is convex, the rear surface of the seventh lens (47) is concave, and the curvature of the rear s