# US 12,591,109 B2 · Optical reflecting assembly, optical lens element module and electronic device

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- Number: US 12,591,109 B2
- Document ID: US12591109B2
- Status: Granted
- Kind: B2
- Application number: 17/930,078
- Filed: 2022-09-07
- Published: 2023-03-30
- Granted: 2026-03-31
- Earliest claimed: 2021-09-24
- Assignees: Largan Precision Co., Ltd.
- Applicants: Largan Precision Co., Ltd.
- Inventors: Ming-Shun Chang; Chen-Wei Fan; Ming-Ta Chou; Chun-Hua Tsai
- Web page: https://patentgrep.com/patent/US12591109B2

## CPC

- G02B 7/182: for mirrors
- G02B 7/021: {for more than one lens}
- G02B 7/023: {permitting adjustment}
- G02B 7/1805: {for prisms (G02B7/181 takes precedence)}
- G02B 13/0065: {having a beam-folding prism or mirror}
- G02B 27/646: {compensating for small deviations, e.g. due to vibration or shake (movement of one or more optical elements for control of motion blur in cameras, projectors or printers G03B2205/0007; image stabilisation in cameras peculiar to the presence or use of an electronic image sensor H04N23/68)}
- G03B 17/17: with reflectors arranged in beam forming the photographic image, e.g. for reducing dimensions of camera
- G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G03B: APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR (optical parts of such apparatus G02B; photosensitive materials or processes for photographic purposes G03C; apparatus for processing exposed photographic materials G03D)

## Abstract

An optical reflecting assembly includes a reflective member, a reflective element holder and a structure component. The reflective member includes a reflective surface for folding a light. The reflective element holder includes an assembling surface correspondingly disposed to the reflective member. The structure component is made of a metal material and has a three-dimensional structure, at least one portion of the structure component is inserted in the reflective element holder, and the structure component includes a first supporting wall, a second supporting wall and at least one extending wall. The first supporting wall and the second supporting wall are bent to form a first bending line with an angle. The extending wall and the second supporting wall are bent to form an extending bending line being a non-closed line.

## Claims

### Claim 1

An optical reflecting assembly, comprising:
a reflective member, comprising:
a reflective surface, a light entering the reflective surface and folded via the reflective surface;
a reflective element holder, comprising:
an assembling surface correspondingly disposed to the reflective member; and
a structure component, wherein the structure component is made of a metal material and has a three-dimensional structure, at least one portion of the structure component is inserted in the reflective element holder, and the structure component comprises:
a first supporting wall;
a second supporting wall, wherein the first supporting wall and the second supporting wall are bent to form a first bending line with an angle; and
at least one extending wall, wherein the at least one extending wall and the second supporting wall are bent to form an extending bending line, and the extending bending line is a non-closed line;
wherein the angle between the first supporting wall and the second supporting wall after being bent is θS; a projection of the reflective member and the structure component is overlapped viewed along a direction, and a minimum distance between the reflective member and the structure component on the direction is DR, and the following conditions are satisfied:
90 degrees≤θS≤164 degrees; and
0.05 mm<DR<1.8 mm;
wherein the structure component further comprises an exposed portion, the exposed portion is exposed to the reflective element holder.

### Claim 2 (depends on 1)

The optical reflecting assembly of claim 1, wherein the structure component and the reflective element holder are formed integrally.

### Claim 3 (depends on 2)

The optical reflecting assembly of claim 2, wherein the reflective element holder comprises two light passing holes, the light passes through the two light passing holes.

### Claim 4 (depends on 3)

The optical reflecting assembly of claim 3, wherein an angle between the at least one extending wall and the second supporting wall after being bent is OE, and the following condition is satisfied:
90 degrees≤θE≤152 degrees.

### Claim 5 (depends on 4)

The optical reflecting assembly of claim 4, wherein a length of the extending bending line is smaller than a length of the first bending line.

### Claim 6 (depends on 5)

The optical reflecting assembly of claim 5, wherein the extending bending line is a straight line.

### Claim 7 (depends on 3)

The optical reflecting assembly of claim 3, wherein a number of the at least one extending wall is at least two.

### Claim 8 (depends on 7)

The optical reflecting assembly of claim 7, wherein the reflective member further comprises a light incident surface, a light exiting surface and two connecting surfaces, the light enters and exits from the light incident surface and the light exiting surface of the reflective member, respectively, the two connecting surfaces are connected to the light incident surface, the light exiting surface and the reflective surface, each of the at least two extending walls comprises a flat surface, and each of the flat surfaces is correspondingly disposed to each of the connecting surfaces.

### Claim 9 (depends on 8)

The optical reflecting assembly of claim 8, wherein the at least two extending walls are symmetrically arranged.

### Claim 10 (depends on 3)

The optical reflecting assembly of claim 3, wherein the structure component comprises a plurality of through holes, and the through holes are passed through at least one of the first supporting wall, the second supporting wall and the at least one extending wall.

### Claim 11 (depends on 3)

The optical reflecting assembly of claim 3, wherein a volume ratio of the structure component inserted in the reflective element holder is more than 90% in an overall volume of the structure component.

### Claim 12 (depends on 11)

The optical reflecting assembly of claim 11, wherein the structure component does not protrude from a surface of the reflective element holder.

### Claim 13 (depends on 3)

The optical reflecting assembly of claim 3, wherein the reflective member is made of a glass material.

### Claim 14 (depends on 1)

The optical reflecting assembly of claim 1, wherein the reflective element holder further comprises a gate.

### Claim 15 (depends on 14)

The optical reflecting assembly of claim 14, wherein the gate is disposed adjacent to the exposed portion.

### Claim 16 (depends on 1)

An optical lens element module, comprising:
the optical reflecting assembly of claim 1, wherein the reflective element holder further comprises a lens holding portion; and
a lens assembly, wherein the lens assembly comprises a plurality of lens elements, an optical axis passes through the lens elements, and the lens holding portion is for assembling and positioning the lens assembly.

### Claim 17 (depends on 16)

The optical lens element module of claim 16, wherein the lens elements comprise at least one glass lens element.

### Claim 18 (depends on 1)

An electronic device, comprising:
the optical reflecting assembly of claim 1.