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BR-102022018986-B1 - Optical reflector assembly, optical lens element module and electronic device.

BR102022018986B1BR 102022018986 B1BR102022018986 B1BR 102022018986B1BR-102022018986-B1

Abstract

OPTICAL REFLECTOR ASSEMBLY, OPTICAL LENS ELEMENT MODULE AND ELECTRONIC DEVICE. An optical reflector assembly includes a reflective member, a reflective element support, and a structural component. The reflective member includes a reflective surface for bending light. The reflective element support includes a mounting surface arranged correspondingly to the reflective member. The structural component is made of a metal material and has a three-dimensional structure; at least a portion of the structural component is inserted into the reflective element support, and the structural component includes a first support wall, a second support wall, and at least one extension wall. The first support wall and the second support wall are bent to form a first bend line at an angle. The extension wall and the second support wall are bent to form an extension bend line, which is an open line.

Inventors

  • Ming-Shun Chang
  • Chen-Wei Fan
  • Ming-Ta Chou
  • Chun-Hua TSAI

Assignees

  • LARGAN PRECISION CO., LTD

Dates

Publication Date
20260317
Application Date
20220922
Priority Date
20210924

Claims (17)

  1. 1. Optical reflector assembly, comprising: a reflective member (120), comprising: a reflective surface (121), a light entering the reflective surface and bent through the reflective surface; a reflective element support (130), comprising: a mounting surface (132) arranged correspondingly to the reflective member (120); and a structural component (140), wherein the structural component is made of a metal material and has a three-dimensional structure, at least a portion of the structural component (140) is inserted into the reflective element support (130), and the structural component (140) comprises: a first support wall (141); a second support wall (142), wherein the first support wall (141) and the second support wall (142) are bent to form a first bend line (144) with an angle; and at least one extension wall (143), wherein the at least one extension wall (143) and the second support wall (142) are bent to form an extension bend line (145), and the extension bend line (145) is an unclosed line; wherein the angle between the first support wall (141) and the second support wall (142) after being bent is θS; a projection of the reflective member (120) and the structural component (140) is seen superimposed along a direction (D1), and a minimum distance between the reflective member (120) and the structural component (140) in the direction (D1) is DR, and the following conditions are satisfied: 90 degrees < θS < 164 degrees; e0.05 mm < DR < 1.8 mm, characterized by the fact that the structural component (140) and the reflective element support (130) are integrally formed.
  2. 2. Optical reflector assembly, according to claim 1, characterized in that the reflective element support (130) comprises two light-passage holes (133), light passes through two light-passage holes (133), and the geometric central axes of the two light-passage holes (133) do not coincide with each other.
  3. 3. Optical reflector assembly, according to claim 1 or 2, characterized in that an angle between at least one extension wall (143) and the second support wall (142) after being bent is θE, and the following condition is satisfied: 90 degrees < θE < 152 degrees.
  4. 4. Optical reflector assembly, according to any one of claims 1 to 3, characterized in that a length of the extension bend line (145) is less than a length of the first bend line (144).
  5. 5. Optical reflector assembly, according to any one of claims 1 to 4, characterized in that the extension bend line (145) is a straight line.
  6. 6. Optical reflector assembly, according to any one of claims 1 to 5, characterized in that a number of at least one extension wall (143) is at least two.
  7. 7. Optical reflector assembly, according to any one of claims 1 to 6, characterized in that the reflective member (120) further comprises a light incident surface (122), a light output surface (123) and two connecting surfaces (124), light enters and exits the light incident surface (122) and the light output surface (123) of the reflective member (120), respectively, the two connecting surfaces (124) are connected to the light incident surface (122), the light output surface (123) and the reflective surface (121), each of the at least two extension walls (143) comprises a flat surface, and each of the flat surfaces is arranged correspondingly to each of the connecting surfaces (124).
  8. 8. Optical reflector assembly, according to any one of claims 1 to 7, characterized in that the at least two extension walls (143) are arranged symmetrically.
  9. 9. Optical reflector assembly, according to any one of claims 1 to 8, characterized in that the structural component (240, 440) comprises a plurality of through holes (246, 446), and the through holes are passed through at least one of the first support wall (241), the second support wall (442) and at least one extension wall (443).
  10. 10. Optical reflector assembly, according to any one of claims 1 to 9, characterized in that the reflector element support (730) further comprises a door (735).
  11. 11. Optical reflector assembly, according to claim 10, characterized in that the structural component (740) further comprises an exposed portion (747), the exposed portion being exposed to the reflective element support (730), and the door (735) being disposed adjacent to the exposed portion (747).
  12. 12. Optical reflector assembly, according to any one of claims 1 to 11, characterized in that the volume ratio of the structural component (140) inserted in the reflective element support (130) is greater than 90% in the total volume of the structural component (140).
  13. 13. Optical reflector assembly, according to any one of claims 1 to 12, characterized in that the structural component (140) does not project from a surface of the reflective element support (130).
  14. 14. Optical reflector assembly, according to any one of claims 1 to 13, characterized in that the reflective member (120) is made of a glass material.
  15. 15. Optical lens element module (100), characterized in that it comprises: an optical reflector assembly, as defined in any one of claims 1 to 14, wherein the reflector element support (130) further comprises a lens retention portion (131); and a lens assembly (111, 112), wherein the lens assembly comprises a plurality of lens elements, an optical axis (X1, X2) passes through the lens elements, and the lens retention portion (131) is for mounting and positioning the lens assembly (111, 112).
  16. 16. Optical lens element module (100), according to claim 15, characterized in that the lens elements comprise at least one glass lens element.
  17. 17. Electronic device (80), characterized in that it comprises: the optical reflector assembly, as defined in any one of claims 1 to 14.

Description

FUNDAMENTALS Field of Technique [0001]This disclosure relates to an optical reflector assembly and an optical lens element module. More particularly, this disclosure relates to an optical reflector assembly and an optical lens element module that are applicable to portable electronic devices. Description of the Related Technique [0002] In recent years, portable electronic devices have developed rapidly. For example, smart electronic devices and tablets have become integrated into the lives of modern people, and modules of optical lens elements and optical reflector assemblies mounted in portable electronic devices have also thrived. However, as technology advances, the quality requirements for optical reflector assemblies are becoming increasingly higher. [0003]Specifically, optical lens element modules that adopt a foldable light path are gradually increasing in size, and the foldable light path needs to use a reflective element support to define the reflective member, and two light passage holes of the reflective element support need to be foldably arranged or eccentrically arranged. However, the aforementioned arrangement will reduce the structural strength of the reflective element support and will easily deform under stress. Therefore, developing an optical reflective assembly that can protect the reflective member and improve the reliability of the assembly has become an important and urgent problem in the industry. [0004]The document US20170294476, which refers to a camera module comprising a prism base, a prism drive mechanism, a prism unit, a lens unit, and an image sensor, is known in the state of the art. The lens unit is located in the lens drive mechanism. The prism base includes a metal element, at least one first layer of wiring, and a first layer of insulation disposed between the metal element and the first layer of wiring. The prism drive mechanism is electrically connected to the first layer of wiring. The prism unit is connected to the prism drive mechanism, and the prism drive mechanism can cause the prism unit to rotate relative to the prism base. The image sensor is able to capture the light reflected by the prism unit and passing through the lens unit. [0005]Another state-of-the-art document is US20120075726 which refers to an optical imaging system, which includes an image lens group with at least one lens and an image side prism that refracts the light that has passed through the image lens group towards an image capture device disposed in a predetermined position, and wherein the image side prism includes a reflective surface that reflects, towards the image capture device, the incident light from the image lens group and an output surface from which the light reflected from the reflective surface emerges, and wherein the image side prism has a cut surface formed by cutting a portion of the vertex between the reflective surface and the output surface, so that the entire area of normal light incidence within which the normal light falls on the reflective surface remains, and the cut surface is a non-diffusing surface. [0006]However, none of the documents teach or disclose the essential characteristics of the present invention. SUMMARY [0007]According to one aspect of the present disclosure, an optical reflector assembly includes a reflective member, a reflective element support, and a structural component. The reflective member includes a reflective surface, wherein light enters the reflective surface and the light is bent through the reflective surface. The reflective element support includes a mounting surface, and the mounting surface is arranged correspondingly to the reflective member. The structural component is made of a metal material and has a three-dimensional structure; at least a portion of the structural component is inserted into the reflective element support, and the structural component includes a first support wall, a second support wall, and at least one extension wall. The first support wall and the second support wall are bent to form a first bend line at an angle. The extension wall and the second support wall are bent to form an extension bend line, and the extension bend line is an unclosed line. When the angle between the first supporting wall and the second supporting wall after bending is θS, and a projection of the reflective member and the structural component is seen superimposed along a direction, a minimum distance between the reflective member and the structural component in the direction is DR, the following conditions are satisfied: 90 degrees < θS < 164 degrees; and 0.05 mm < DR < 1.8 mm. [0008]According to another aspect of the present disclosure, an optical lens element module includes the optical reflector assembly according to the previous aspect and a lens assembly. The reflector element holder further includes a lens retention portion. The lens assembly includes a plurality of lens elements, an optical axis passes through the lens elements,