TW202422197A - Fixation device for lens - Google Patents

Abstract

A fixation device for lens includes a fixing ring and an operating member. The fixing ring is sleeve on a lens under test and presses against an outer side wall of the lens under test. The fixing ring includes two free ends and two limit convex portions. The two free ends form an opening together. The two limit convex portions are disposed on the two free ends respectively, and the two limit convex portions are close to an outer side of the fixing ring and protrude toward the opening. The operating member includes a fixing portion, a neck portion, and an operating portion. The fixing portion is used to be disposed in the opening. One end of the neck portion is connected to the fixing portion and located between the two limit convex portions. One end of the operating portion is connected to the neck portion and located outside of the fixing ring.

Description

Lens holding device

The present invention relates to a lens holding device, and in particular to a lens holding device used in a focusing process.

The focusing method of the lens module is mainly to use a fixture or a holding device to fix the lens to be tested, and then adjust the relative position of the lens and the image sensor through the holding device to focus. Generally speaking, the lens is cylindrical and has a round appearance. In order to adjust the focal length of the lens, a groove is designed on the outer wall of the circular lens for the clamping structure (such as a convex part) of the focusing holding device to fix. Then, the relative position of the lens and the image sensor can be adjusted by the holding device to perform the focusing process.

However, forming a groove on the outer side wall of the lens will increase the cost of manufacturing the lens module. In order to clamp the smooth side wall of the circular lens without a groove, a lens holding device must be improved or designed separately.

In view of the above-mentioned problems, the main purpose of the present invention is to provide a lens holding device, which includes a fixing ring and an operating member, wherein the fixing ring is sleeved on a lens to be tested, and the operating member is disposed at an opening of the fixing ring and abuts against the structure of the lens to be tested, so that the holding device can fix the lens to be tested and adjust the position of the lens to be tested, so as to solve the problem that the known holding device cannot be applied to a lens without a groove.

In order to achieve the above-mentioned purpose, the present invention provides a lens holding device, which is applied to a focusing process of a lens to be tested. The holding device includes a fixing ring and an operating part. The fixing ring is sleeved on the lens to be tested and abuts against an outer side wall of the lens to be tested. The fixing ring includes two free ends and two limiting protrusions. The two free ends together form an opening. The two limiting protrusions are respectively arranged at the two free ends, close to an outer side of the fixing ring and protrude toward the opening. The operating part is inserted into the opening from a surface of the fixing ring. The operating part includes a fixing part, a neck and an operating part. The fixing part is used to be arranged in the opening. One end of the neck is connected to the second side wall of the fixing part and is located between the two limiting protrusions. One end of the operating part is connected to the neck and is located on the outer side of the fixing ring.

According to an embodiment of the present invention, the two limiting protrusions form the opening into a first portion and a second portion. The second portion is located between the two limiting protrusions, and the width of the first portion is greater than the width of the second portion.

According to an embodiment of the present invention, the fixing portion includes a guiding portion. The neck is connected to the guiding portion, and the width of the guiding portion gradually decreases from the neck toward the direction of the lens to be tested.

According to an embodiment of the present invention, the fixing portion further includes a contact portion. The guiding portion is connected to the contact portion, and the contact portion contacts the outer wall of the lens to be tested.

According to an embodiment of the present invention, the two position-limiting protrusions each include a guiding inclined surface and are close to the outer side of the fixing ring. The guiding inclined surface is inclined toward the opening.

According to an embodiment of the present invention, the fixing portion includes a first side wall and a second side wall opposite to each other. The first side wall abuts against the outer side wall of the lens to be tested, and the second side wall abuts against the limiting protrusion.

According to an embodiment of the present invention, the two limiting protrusions respectively include a limiting groove, which is arranged on the limiting protrusion and faces the first part of the opening. The second side wall of the fixing part abuts against the limiting groove.

According to an embodiment of the present invention, the fixing ring includes a hollow structure and at least one fixing structure. The hollow structure is connected to the opening. The fixing structure includes an arc-shaped side wall, and the arc-shaped side wall faces the hollow structure. The lens to be tested is accommodated in the hollow structure, and the arc-shaped side wall of the fixing structure abuts against the outer side wall of the lens to be tested.

According to an embodiment of the present invention, the fixing ring includes an extended inclined surface which is inclined toward the lens to be tested, and a bottom surface of the extended inclined surface abuts against a periphery of the lens to be tested.

According to an embodiment of the present invention, the fixing ring includes two first engaging parts, respectively close to the two free ends. The holding device further includes a fixing member, which includes two second engaging parts. The two second engaging parts are located on a bottom surface of the fixing member, and the two second engaging parts are accommodated in the two first engaging parts.

According to an embodiment of the present invention, the fixing ring includes a hollow structure, and the lens to be tested is accommodated in the hollow structure. An upper surface of the fixing member is an inclined surface, and the inclined surface is inclined toward the fixing ring.

According to an embodiment of the present invention, the fixing ring further includes an operating structure protruding outward from the outer side of the fixing ring.

According to one embodiment of the present invention, the operating structure is located at a symmetrical position of the opening.

According to an embodiment of the present invention, the fixing ring further includes two operating structures. The two operating structures are symmetrically arranged on the outer side of the fixing ring and protrude outward from the outer side of the fixing ring.

As mentioned above, according to the lens holding device of the present invention, the fixing ring and the operating member can jointly clamp the lens to be tested whose outer wall does not have any locking structure through the aforementioned structure. In addition, the neck of the operating member is located between the two limiting protrusions of the fixing ring, and the operating part of the operating member is located on the outer side of the fixing ring. Therefore, when force is applied to the operating part, the force can be transmitted to the fixing ring through the neck, and the position of the lens to be tested can be adjusted. That is, the lens to be tested is driven to move by the fixing ring and the operating member to adjust the relative position of the lens to be tested and the image sensor, and to perform a focusing process.

In order to better understand the technical content of the present invention, the preferred specific embodiments are described as follows. The specific embodiments described are only used to explain the present invention, and are not used to limit the present invention. The description of the structural operation is not used to limit the order of its execution. Any device with equal functions produced by the re-combination of components is within the scope of the present disclosure. In addition, the drawings in the embodiments omit some components to clearly show the technical features of the present invention. The same reference numerals will be used to represent the same or similar components in all drawings.

First, the lens holding device 1 of the present embodiment (hereinafter referred to as the holding device for short) is applied in the focusing process to clamp a lens 9 to be tested. The relative position of the lens 9 to be tested and the image sensor is adjusted by the holding device 1 to perform focusing. FIG1 is a schematic diagram of the holding device and the lens to be tested of the first embodiment of the present invention, FIG2 is an exploded schematic diagram of the holding device and the lens to be tested shown in FIG1 , and FIG3 is a partially enlarged schematic diagram of the fixed ring, the operating member and the lens to be tested shown in FIG2 after assembly, please refer to FIG1 , FIG2 and FIG3. The holding device 1 of the present embodiment includes a fixed ring 10 and an operating member 20. Among them, the fixed ring 10 is a C-shaped ring. Therefore, the fixed ring 10 includes two free ends 11, and the two free ends 11 together form an opening 12. Moreover, the fixing ring 10 further includes two limiting protrusions 13 . The two limiting protrusions 13 are respectively disposed at the two free ends 11 , close to an outer side 101 of the fixing ring 10 , and protrude toward the opening 12 .

As shown in FIG. 3 , the two limiting protrusions 13 form the opening 12 into a first portion 121 and a second portion 122. That is, the opening 12 is divided into the first portion 121 and the second portion 122 by the protruding limiting protrusions 13. In this embodiment, the portion between the two limiting protrusions 13 is defined as the second portion 122. Moreover, the width of the first portion 121 is greater than the width of the second portion 122, and the first portion 121 is close to the inner side 102, while the second portion 122 is close to the outer side 101.

In the present embodiment, the fixing ring 10 is sleeved on the lens 9 to be tested, and abuts against an outer side wall 91 of the lens 9 to be tested. The lens 9 to be tested is cylindrical, and the outer side wall 91 is smooth, without grooves or other concave or convex structures for engagement. FIG4 is a bottom view of the holding device and the lens to be tested shown in FIG1 , please refer to FIG1 , FIG2 and FIG4 . Specifically, the fixing ring 10 includes a hollow structure 14, which is located at the center of the fixing ring 10, and the hollow structure 14 is connected to the opening 12. When the fixing ring 10 is sleeved on the lens 9 to be tested, the lens 9 to be tested is accommodated in the hollow structure 14. Preferably, the hollow structure 14 can be a circular through hole to correspond to the cylindrical lens 9 to be tested. Preferably, the fixing ring 10 further includes at least one fixing structure 15, which is disposed on the bottom side of the fixing ring 10. Moreover, the fixing structure 15 includes an arcuate side wall 151, and the arcuate side wall 151 faces the hollow structure 14. Therefore, when the lens 9 to be measured is accommodated in the hollow structure 14, the arcuate side wall 151 of the fixing structure 15 can abut against the outer side wall 91 of the lens 9 to be measured. Preferably, the fixing ring 10 of this embodiment includes three fixing structures 15, and the three fixing structures 15 are spaced apart from each other, so that the bottom side of the fixing ring 10 can be a hollow structure (that is, the area without the fixing structure 15 is hollow). The aforementioned hollow structure can not only reduce the overall weight of the fixing ring 10 to achieve a lightweight effect, but also reduce the force exerted by the fixing ring 10 on the lens 9 to be tested during the focusing process, so as to avoid unnecessary damage to the lens 9 to be tested.

FIG5A is a top view of the fixing ring shown in FIG2 being mounted on the lens to be tested, and the operating member being inserted into the fixing ring. FIG5B is a front view of the holding device shown in FIG5A. FIG5C is a partially enlarged schematic diagram of the holding device shown in FIG5A. Please refer to FIG2, FIG3, FIG5A, FIG5B and FIG5C. The operating member 20 can be inserted into the opening 12 from a surface of the fixing ring 10. In this embodiment, the operating member 20 can be inserted into the opening 12 from the upper surface of the fixing ring 10, as shown in the direction of the arrow in FIG5B. In addition, the operating member 20 of this embodiment includes a fixing portion 21, a neck portion 22 and an operating portion 23. Among them, the neck portion 22 is a portion with a narrower width. That is, the width of the neck portion 22 is smaller than that of the fixing portion 21 and the operating portion 23. Furthermore, the neck portion 22 is located between the fixing portion 21 and the operating portion 23. In other words, one end of the neck portion 22 is connected to one side of the fixing portion 21, and one end of the operating portion 23 is connected to the neck portion 22.

The fixing portion 21 is used to be disposed in the opening 12 of the fixing ring 10. Preferably, the fixing portion 21 of the present embodiment includes an abutting portion 211 and a guiding portion 212, the guiding portion 212 is connected to the abutting portion 211, and the neck portion 22 is connected to the guiding portion 212. As shown in FIG. 3 and FIG. 5C , the fixing portion 21 includes a first side wall 213 and a second side wall 214 opposite to each other. The first side wall 213 is located at the abutting portion 211, the second side wall 214 is located at the guiding portion 212, and the neck portion 22 is connected to the second side wall 214. The first side wall 213 is used to abut against the outer side wall 91 of the lens 9 to be tested, so the first side wall 213 is preferably arc-shaped. In this embodiment, the contact portion 211 of the fixing portion 21 is first aligned with the opening 12 of the fixing ring 10 and inserted into the first portion 121 of the opening 12. At this time, the guide portion 212 is located at the second portion 122 of the opening 12, as shown in FIG. 5A and FIG. 5C. Preferably, the fixing ring 10 may be slightly opened, and then the two free ends 11 may be slightly pulled apart, so that the contact portion 211 is more easily placed in the first portion 121 of the opening 12. After the contact portion 211 is placed in the first portion 121, the force is stopped, so that the two free ends 11 return to their original positions.

Preferably, the width of the guide portion 212 of the present embodiment tapers from the neck portion 22 toward the direction of the lens 9 to be tested. Specifically, the fixing portion 21 includes two guiding slopes, referred to herein as first guiding slopes 215. The first guiding slopes 215 are respectively located on two opposite sides of the guide portion 212, so that the width of the guide portion 212 tapers from the second side wall 214 toward the abutting portion 211. That is, the first guiding slopes 215 on both sides form a tapered guide portion 212, and taper from the neck portion 22 toward the direction of the lens 9 to be tested. It should be noted that, for the sake of simplicity of the drawing, FIG. 5C only marks the first guiding slope 215 on one side of the guide portion 212.

Preferably, the limiting protrusion 13 of the fixing ring 10 includes a limiting groove 131 and a guiding slope, which is referred to as the second guiding slope 132, as shown in FIG. 5C. The limiting groove 131 is disposed on the limiting protrusion 13 and faces the first portion 121 of the opening 12. The second guiding slope 132 is disposed adjacent to the limiting groove 131 and is close to the outer side 101 of the fixing ring 10. Moreover, the second guiding slope 132 is inclined toward the opening 12 to form a tapered second portion 122. In other words, the second portion 122 of the opening 12 tapers from the outer side 101 of the fixing ring 10 toward the first portion 121.

As mentioned above, when the operating member 20 is assembled to the fixing ring 10, the contact portion 211 is first inserted into the first portion 121 of the opening 12 from the upper surface of the fixing ring 10. At this time, the guide portion 212 is accommodated in the second portion 122, the neck portion 22 and the operating portion 23 are located at the outer side 101 of the fixing ring 10, and the first guide slope 215 is respectively attached to the second guide slope 132 of the limiting protrusion 13, as shown in Figures 5A and 5C. Then, a force can be applied to the operating portion 23 to move in the direction of the fixing ring 10 (as shown in the arrow direction in Figure 5C).

FIG6 is a schematic diagram of the operating member shown in FIG5C after it moves toward the fixed ring, please refer to FIG2, FIG5C and FIG6. As mentioned above, when the operating portion 23 is forced to move toward the fixed ring 10, the second guiding inclined surface 132 and the first guiding inclined surface 215 cooperate with each other, so that the guiding portion 212 can be guided to enter the first portion 121 of the opening 12, and the contact portion 211 moves to contact the lens 9 to be tested, as shown in FIG6. At this time, the arc-shaped first side wall 213 located at the contact portion 211 contacts the outer side wall 91 of the lens 9 to be tested, a part of the guiding portion 212 is accommodated in the limiting groove 131 of the limiting protrusion 13, and the second side wall 214 located at the guiding portion 212 contacts the limiting groove 131. Therefore, the fixing portion 21 may be restricted by the limiting groove 131 and cannot move to the outer side 101 of the fixing ring 10 .

Furthermore, when the fixing portion 21 completely enters the first portion 121 of the opening 12, the neck portion 22 is located between the two limiting protrusions 13 (i.e., located at the second portion 122 of the opening 12), and the operating portion 23 is located at the outer side of the fixing ring 10. Therefore, when a force is applied to the operating portion 23, the force can be transmitted to the fixing ring 10 through the neck portion 22. In addition, since the outer side wall 91 of the lens 9 to be tested is clamped by the fixing ring 10 and the operating member 20, the position of the lens 9 to be tested can be adjusted at the same time. In other words, the relative position of the lens 9 to be tested and the image sensor can be adjusted by applying a force to the operating portion 23, and the focusing process can be performed. For example, if the lens 9 to be tested is connected to the lens holder by screwing, force can be applied to the operating portion 23 to rotate the entire holding device 1 clockwise or counterclockwise, thereby adjusting the distance between the lens 9 to be tested and the image sensor to perform a focusing process.

In other embodiments, the fixing ring 10 may be sleeved on the lens 9 to fix and clamp the lens 9, and the operating member 20 is only used to rotate the entire holding device 1 clockwise or counterclockwise to perform the focusing process. In other words, the abutting portion 211 and the first side wall 213 of the operating member 20 do not need to abut against the outer side wall 91 of the lens 9 to be tested, and the focusing process can be performed by only clamping the lens 9 to be tested with the fixing ring 10.

In addition, the structures such as the limiting groove 131 and the second guiding inclined surface 132 of the limiting protrusion 13, and the structures such as the abutting portion 211, the guiding portion 212 and the first guiding inclined surface 215 of the fixing portion 21 are also preferred embodiments. In other embodiments, the operating member 20 only needs to have the fixing portion 21, the neck portion 22 and the operating portion 23. The fixing portion 21 can be directly placed into the opening 12 from a surface of the fixing ring 10, and the arc-shaped first side wall 213 abuts against the outer side wall 91 of the lens 9 to be tested, and the second side wall 214 abuts against the limiting protrusion 13. In addition, the neck portion 22 is located between the two limiting protrusions 13, and the operating portion 23 is located on the outer side of the fixing ring 10. The aforementioned structure can also transmit the force applied to the operating portion 23 to the fixing ring 10 via the neck portion 22, and can also achieve the function of adjusting the relative position of the lens 9 to be tested and the image sensor.

In some embodiments, when focusing, the operating member 20 will transmit force to the limiting protrusion 13 or the free end 11 of the fixed ring 10, which may cause the opening 12 to expand. Preferably, the holding device 1 further includes a fixing member 30 (as shown in Figures 1 and 2), which is arranged on the fixed ring 10 to limit the width of the opening 12 to avoid the aforementioned expansion of the opening 12. Specifically, the fixed ring 10 includes two first clamping portions 16, respectively close to the two free ends 11. The fixing member 30 includes two second clamping portions 31, which are located on the bottom surface of the fixing member 30. Among them, the first clamping portion 16 and the second clamping portion 31 are mutually matching structures. For example, the first clamping portion 16 can be a recessed structure such as a perforation or a groove. The first clamping portion 16 of the present embodiment is an example of a perforation. Correspondingly, the second engaging portion 31 can be a convex column. After the operating member 20 is assembled to the fixing ring 10, the second engaging portion 31 (i.e., the convex column) of the fixing member 30 is accommodated in the first engaging portion 16 (i.e., the through hole) of the fixing ring 10 to fix (limit) the distance between the two first engaging portions 16. At the same time, the distance between the two free ends 11 and the width of the opening 12 can also be limited, thereby achieving the effect of preventing the opening 12 from being expanded during focusing. In other embodiments, the first engaging portion 16 can also be a convex column, and the second engaging portion 31 can be a concave structure such as a through hole or a groove, which can also enable the fixing member 30 to be set on the fixing ring 10 and fix (limit) the distance between the two first engaging portions 16.

In some embodiments, the lens 9 to be tested may be a wide-angle lens. To meet the specifications of the wide-angle lens, attention must be paid to the structure of the fixing ring 10 located above the lens 9 to be tested, so as to prevent the fixing ring 10 from blocking the field of view of the lens 9 to be tested. Preferably, the fixing ring 10 of the present invention may further include an extended inclined surface 17 (as shown in FIGS. 1, 2, 3 and 5B). The bottom surface of the extended inclined surface 17 abuts against the periphery of the lens 9 to be tested, that is, the extended inclined surface 17 abuts against the outer periphery of the upper surface of the lens 9 to be tested, so as to ensure that the lens 9 to be tested is disposed in the hollow structure 14. The thickness of the extended inclined surface 17 gradually decreases toward the hollow structure 14 to form an inclined surface structure. When the fixing ring 10 is mounted on the lens 9 to be tested, the extending inclined surface 17 is inclined downwardly toward the lens 9 to be tested (as shown in FIG. 5B ). In addition, the upper surface of the fixing member 30 is preferably an inclined surface 32, and the inclined surface 32 is inclined toward the fixing ring 10. When adjusting the focus, the inclined surface structure of the extending inclined surface 17 and the inclined surface 32 of the fixing member 30 can avoid shielding the view of the lens 9 to be tested.

FIG7 is a schematic diagram of the holding device and the lens to be tested of the second embodiment of the present invention, please refer to FIG7. The holding device 1a of this embodiment also includes a fixing ring 10a, an operating member 20 and a fixing member 30. Among them, the structure of the operating member 20 and the fixing member 30 and the connection relationship with the fixing ring 10a are the same as those of the first embodiment, so the aforementioned component symbols are used. The difference between the holding device 1a of this embodiment and the first embodiment is at least that the fixing ring 10a further includes an operating structure 18a. The operating structure 18a protrudes outward from the outer side 101a of the fixing ring 10a. Preferably, the operating structure 18a is located at a symmetrical position of the opening 12a. For example, the operating structure 18a is located on the opposite side of the opening 12a, so that the operating structure 18a and the operating portion 23 are symmetrically arranged. When adjusting the focus, force can be applied to the operating portion 23 of the operating member 20 and the operating structure 18a of the fixing ring 10a at the same time. In other words, force can be applied to the fixing ring 10a and the operating member 20 at the same time when adjusting the focus, so that the force applied to the holding device 1a and the lens 9 to be tested clamped therein is more even.

FIG8 is a schematic diagram of a holding device and a lens to be tested according to the third embodiment of the present invention, please refer to FIG8. Similarly, the holding device 1b of this embodiment also includes a fixed ring 10b, an operating member 20 and a fixing member 30. The structures of the operating member 20 and the fixing member 30 and their connection relationship with the fixed ring 10b are the same as those of the first and second embodiments, so the aforementioned component symbols are used. The difference between the holding device 1b of this embodiment and the first embodiment is at least that the fixed ring 10b further includes two operating structures 18b, and the two operating structures 18b are symmetrically arranged on the outer side 101b of the fixed ring 10b. The operating structure 18b protrudes outward from the outer side 101b of the fixed ring 10b. In this embodiment, when adjusting the focus, force can be directly applied to the two operating structures 18b, and the force can be transmitted to the operating member 20 and the lens 9 to be tested through the fixing ring 10b, which can also achieve the function of adjusting the relative position of the lens 9 to be tested and the image sensor. Preferably, the length of the operating structure 18b can be greater than the length of the operating portion 23 to increase the structural strength of the operating structure 18b and facilitate the application of force to the operating structure 18b. Preferably, the upper surface of the operating structure 18b can also have an inclined surface 181b to avoid blocking the field of view of the lens 9 to be tested when adjusting the focus.

In other embodiments, force may be applied to the operating portion 23 of the operating member 20 and the two operating structures 18b of the fixing ring 10b at the same time. In other embodiments, in addition to the symmetrically arranged operating structures 18b, an additional operating structure may be provided at a symmetrical position of the operating portion 23 (see the operating structure 18a in FIG. 7 ), and the present invention is not limited thereto.

In summary, according to the lens holding device of the present invention, the fixing ring and the operating member can jointly clamp the lens to be tested whose outer wall does not have any engaging structure through the aforementioned structure. In addition, the neck of the operating member is located between the two limiting protrusions of the fixing ring, and the operating part of the operating member is located on the outer side of the fixing ring. Therefore, when force is applied to the operating part, the force can be transmitted to the fixing ring through the neck, and the position of the lens to be tested can be adjusted. That is, the lens to be tested is driven to move by the fixing ring and the operating member to adjust the relative position of the lens to be tested and the image sensor, and to perform a focusing process.

It should be noted that the above embodiments are given for the purpose of illustration only, and the scope of rights claimed by the present invention should be based on the scope of the patent application, rather than being limited to the above embodiments.

1, 1a, 1b: holding device 10, 10a, 10b: fixing ring 101, 101a, 101b: outer side 102: inner side 11: free end 12, 12a: opening 121: first part 122: second part 13: limiting protrusion 131: limiting groove 132: second guiding slope 14: hollow structure 15: fixing structure 151: arcuate side wall 16: first engaging part 17: extending slope 18a, 18b: operating structure 181b: inclined surface 20: operating member 21: fixing part 211: abutting part 212: guiding part 213: first side wall 214: Second side wall 215: First guide slope 22: Neck 23: Operation part 30: Fixing part 31: Second engaging part 32: Inclined surface 9: Lens to be tested 91: Outer side wall

FIG. 1 is a schematic diagram of a holding device and a lens to be tested according to the first embodiment of the present invention. FIG. 2 is a schematic diagram of an exploded view of the holding device and the lens to be tested shown in FIG. 1. FIG. 3 is a partially enlarged schematic diagram of the fixed ring, the operating member and the lens to be tested shown in FIG. 2 after assembly. FIG. 4 is a bottom view of the holding device and the lens to be tested shown in FIG. 1. FIG. 5A is a top view of the fixed ring shown in FIG. 2 being sleeved on the lens to be tested and the operating member being inserted into the fixed ring. FIG. 5B is a front view of the holding device shown in FIG. 5A. FIG. 5C is a partially enlarged schematic diagram of the holding device shown in FIG. 5A. FIG. 6 is a schematic diagram of the operating member shown in FIG. 5C after moving toward the fixed ring. FIG. 7 is a schematic diagram of the holding device and the lens to be tested according to the second embodiment of the present invention. Figure 8 is a schematic diagram of the holding device and the lens to be tested of the third embodiment of the present invention.

1: Holding device

10:Fixed ring

101:Outside

102:Inside

11: Free end

12: Open mouth

13: Limiting convex part

14: Hollow structure

15: Fixed structure

151: Curved side wall

16: First engagement portion

17: Extend the slope

20: Operating parts

21: Fixed part

22: Neck

23: Operation Department

30:Fixers

31: Second engagement portion

32: Inclined surface

9: Lens to be tested

91: Outer wall

Claims (14)

A lens holding device is applied to a focusing process of a lens to be tested, and the holding device comprises: A fixing ring, which is sleeved on the lens to be tested and abuts against an outer wall of the lens to be tested, and the fixing ring comprises: Two free ends, which together form an opening; and Two limiting protrusions, which are respectively arranged at the two free ends, close to an outer side of the fixing ring and protrude toward the opening; and An operating member, which is inserted into the opening from a surface of the fixing ring, and the operating member comprises: A fixing portion, which is used to be arranged in the opening; A neck, one end of which is connected to the fixing portion and is located between the two limiting protrusions; and An operating portion, one end of which is connected to the neck and is located on the outer side of the fixing ring. A lens holding device as described in claim 1, wherein the two limiting protrusions cause the opening to form a first part and a second part, the second part is located between the two limiting protrusions, and the width of the first part is greater than the width of the second part. A lens holding device as described in claim 1, wherein the fixing portion includes a guiding portion, the neck is connected to the guiding portion, and the width of the guiding portion gradually decreases from the neck toward the lens to be tested. A lens holding device as described in claim 3, wherein the fixing portion further includes a contact portion, the guiding portion is connected to the contact portion, and the contact portion contacts the outer wall of the lens to be tested. A lens holding device as described in claim 1, wherein the two limiting protrusions each include a guiding slope, and are close to the outer side of the fixing ring, and the guiding slope is inclined toward the opening. A lens holding device as described in claim 1, wherein the fixing portion includes a first side wall and a second side wall opposite to each other, the first side wall abuts against the outer side wall of the lens to be tested, the second side wall abuts against the limiting protrusion, and the neck is connected to the second side wall. A lens holding device as described in claim 6, wherein the two limiting protrusions respectively include a limiting groove, which is arranged on the limiting protrusion and faces the first part of the opening, and the second side wall of the fixing part abuts against the limiting groove. A lens holding device as described in claim 1, wherein the fixing ring includes a hollow structure and at least one fixing structure, the hollow structure is connected to the opening, the fixing structure includes a curved side wall, the curved side wall faces the hollow structure, the lens to be tested is accommodated in the hollow structure, and the curved side wall of the fixing structure abuts against the outer side wall of the lens to be tested. A lens holding device as described in claim 1, wherein the fixing ring includes an extended inclined surface, the extended inclined surface is inclined toward the direction of the lens to be tested, and a bottom surface of the extended inclined surface abuts against a periphery of the lens to be tested. The lens holding device as described in claim 1, wherein the fixing ring includes two first engaging portions, respectively close to the two free ends, and the holding device further includes: A fixing member, including two second engaging portions, the two second engaging portions are located on a bottom surface of the fixing member, and the two second engaging portions are accommodated in the two first engaging portions. A lens holding device as described in claim 10, wherein the fixing ring includes a hollow structure, the lens to be tested is accommodated in the hollow structure, an upper surface of the fixing member is an inclined surface, and the inclined surface is inclined toward the fixing ring. A lens holding device as described in claim 1, wherein the fixing ring further includes an operating structure protruding outward from the outer side of the fixing ring. A lens holding device as described in claim 12, wherein the operating structure is located at a symmetrical position of the opening. A lens holding device as described in claim 1, wherein the fixing ring further includes two operating structures, the two operating structures are symmetrically arranged on the outer side of the fixing ring and protrude outward from the outer side of the fixing ring.

Images