Lens module test fixture

Abstract

The invention relates to the technical field of lens module testing, in particular to a lens module testing clamp which comprises a base provided with an image sensor used for detecting a lens module. The first mounting seat is movably arranged above the base, and a first through hole is formed in the first mounting seat in a penetrating manner; the second mounting seat is movably arranged on one side, far away from the base, of the first mounting seat, the second mounting seat is provided with a placing part for placing the lens module, and the placing part is provided with a second through hole communicated with the first through hole; and the adjusting assembly is arranged on the first mounting seat, and the second mounting seat adjusts the distance between the second mounting seat and the first mounting seat through the adjusting assembly so as to change the distance between the lens module and the image sensor. The objective of the invention is to provide the lens module distance test fixture which can be rapidly adjusted.

Description

Technical Field

[0001] The present invention relates to the technical field of lens module testing, and in particular to a lens module testing fixture. Background Art

[0002] During the production process of the lens module, it is necessary to perform imaging tests on the lenses in the lens module. The existing testing method is to place the lens module at the position to be tested, adjust the distance between the image sensor and the lens to be tested, and then capture the image formed by the lens to determine the imaging quality of the lens.

[0003] When adjusting the distance between the image sensor and the lens to be tested, a general-purpose sliding jig is generally used. The distance needs to be manually adjusted for positioning according to different working distances of the lens. The sliding jig cannot perform fine displacement, which can easily cause errors in the measured values. Summary of the invention

[0004] The main purpose of the present invention is to provide a lens module test fixture, aiming to provide a lens module distance test fixture that can be quickly adjusted.

[0005] To achieve the above object, the lens module test fixture proposed in the present invention includes: a first mounting seat movably disposed above the base, the first mounting seat being provided with a first through hole;

[0006] A second mounting seat is movably disposed on a side of the first mounting seat away from the base, the second mounting seat is provided with a placement portion for placing the lens module, and the placement portion is provided with a second through hole communicating with the first through hole;

[0007] The adjustment component is arranged on the first mounting seat, and the second mounting seat adjusts the distance between the second mounting seat and the first mounting seat through the adjustment component to change the distance between the lens module and the image sensor.

[0008] In one embodiment, the adjustment assembly includes a knob and an adjustment member, the knob is located at one end of the adjustment member, and the end of the adjustment member away from the knob passes through the second mounting seat and the first mounting seat in sequence, and the side of the knob close to the adjustment member abuts against the second mounting seat, and rotating the knob drives the adjustment member to rotate, thereby driving the second mounting seat away from or close to the first mounting seat.

[0009] In one embodiment, the adjustment assembly also includes an identification member, which includes a connecting portion and a scale portion that are connected to each other, the connecting portion is connected to a side of the first mounting seat close to the second mounting seat, the scale portion is bent along a direction in which the first mounting seat is close to the second mounting seat, and a plurality of scales are evenly arranged on the scale portion.

[0010] In one embodiment, abutment is disposed on the outer cover of the adjusting member, and the abutment is located on a side of the second mounting seat away from the knob and abuts against the second mounting seat.

[0011] In one embodiment, an anti-slip member is provided at one end of the adjusting member away from the knob, and the anti-slip member is used to abut against a side of the first mounting seat away from the second mounting seat to prevent the adjusting member from detaching from the first mounting seat.

[0012] In one embodiment, the first mounting seat includes an adjusting column, a sleeve is provided on a side of the base close to the first mounting seat, at least a portion of the adjusting column is located in the sleeve, and the adjusting column is movably arranged relative to the sleeve.

[0013] In one embodiment, a clamping protrusion is provided on the adjustment column, and a plurality of clamping holes are opened on the sleeve. The plurality of clamping holes are arranged along the length direction of the sleeve, and the clamping protrusion is clamped at the clamping hole to adjust the distance between the first mounting seat and the base.

[0014] In one embodiment, the placement portion is disposed on a side of the second mounting seat away from the first mounting seat, and the placement portion has an accommodating cavity for placing the lens module, and the accommodating cavity is communicated with the second through hole.

[0015] In one embodiment, a first positioning groove and a second positioning groove are provided in the accommodating cavity, and the first positioning groove and the second positioning groove are respectively used to place lens modules with different shell shapes.

[0016] In one embodiment, a buffer layer is provided on a side of the placement portion away from the second mounting seat, and the buffer layer is located in the accommodating cavity.

[0017] The technical solution of the present invention adopts that both the first mounting seat and the second mounting seat can be movably arranged, so that the test fixture can adapt to lens modules of different sizes and shapes, and the adjustment component allows the user to easily adjust the distance between the lens module and the image sensor to ensure the best focus or meet specific test conditions. The connection design of the first through hole and the second through hole helps to ensure the accuracy of the light path and the reliability of the test results. In addition, the simple structural design of the present invention allows operators to quickly master how to use the test fixture, so that the adjustment process is intuitive and does not require complex tools, reducing the setting time and the possibility of error. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0019] Figure 1 It is a structural schematic diagram of an embodiment of a lens module test fixture of the present invention;

[0020] Figure 2 It is a structural schematic diagram of another embodiment of the lens module test fixture of the present invention;

[0021] Figure 3 The figure is a schematic structural diagram of another embodiment of the lens module test fixture of the present invention.

[0022] Description of Figure Numbers:

[0023] 100-Lens module test fixture;

[0024] 110-base, 112-image sensor, 113-sleeve, 113a-card hole;

[0025] 120-first mounting seat, 121-adjusting column, 1211-clamping protrusion;

[0026] 130-second mounting seat, 130b-second through hole, 131-placing portion, 131a-accommodating cavity;

[0027] 140 - adjustment component, 141 - knob, 142 - adjustment member, 1421 - abutment member, 1422 - anti-slip member, 143 - identification member, 1431 - connection portion, 1432 - scale portion.

[0028] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0031] In addition, the descriptions of "first", "second", etc. in the present invention are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0032] During the production process of the lens module, it is necessary to perform imaging tests on the lenses in the lens module. The existing testing method is to place the lens module at the position to be tested, adjust the distance between the image sensor and the lens to be tested, and then capture the image formed by the lens to determine the imaging quality of the lens.

[0033] When adjusting the distance between the image sensor and the lens to be tested, a general-purpose sliding jig is generally used. The distance needs to be manually adjusted for positioning according to different working distances of the lens. The sliding jig cannot perform fine displacement, which can easily cause errors in the measured values.

[0034] In order to solve the above problems, the lens module test fixture 100 proposed in the present invention includes: a first mounting seat 120, which is movably arranged above the base 110, and the first mounting seat 120 is provided with a first through hole;

[0035] A second mounting seat 130 is movably disposed on a side of the first mounting seat 120 away from the base 110, the second mounting seat 130 is provided with a placement portion 131 for placing the lens module, and the placement portion 131 is provided with a second through hole communicating with the first through hole;

[0036] The adjustment component 140 is disposed on the first mounting seat 120 . The second mounting seat 130 adjusts the distance between the second mounting seat 130 and the first mounting seat 120 through the adjustment component 140 to change the distance between the lens module and the image sensor 112 .

[0037] In this embodiment, the first mounting seat 120 and the second mounting seat 130 can be movably arranged, so that the test fixture can adapt to lens modules of different sizes and shapes, and the adjustment component 140 allows the user to easily adjust the distance between the lens module and the image sensor 112 to ensure optimal focus or meet specific test conditions. The connection design of the first through hole and the second through hole 130b helps to ensure the accuracy of the light path and the reliability of the test results. In addition, the simple structural design of the present invention allows operators to quickly master how to use the test fixture, so that the adjustment process is intuitive and does not require complex tools, reducing the setting time and the possibility of error.

[0038] In the embodiments of the present invention, please refer to Figures 1 to 3 The adjustment assembly 140 includes a knob 141 and an adjustment member 142, the knob 141 is located at one end of the adjustment member 142, and the end of the adjustment member 142 away from the knob 141 passes through the second mounting seat 130 and the first mounting seat 120 in sequence, and the side of the knob 141 close to the adjustment member 142 abuts against the second mounting seat 130. Rotating the knob 141 drives the adjustment member 142 to rotate, so as to drive the second mounting seat 130 away from or close to the first mounting seat 120.

[0039] In this embodiment, fine-tuning can be achieved by rotating the adjustment member 142 through the knob 141 to ensure that the distance between the lens module and the image sensor 112 reaches the required accuracy. The coordinated design of the knob 141 and the adjustment member 142 ensures stability during the adjustment process and avoids unnecessary shaking or deviation caused by adjustment. The knob 141 can quickly lock or unlock the adjustment member 142, allowing the user to complete position adjustment in a short time, thereby improving work efficiency.

[0040] In the embodiments of the present invention, please refer to Figures 1 to 3 The adjustment component 140 also includes an identification member 143, and the identification member 143 includes a connecting portion 1431 and a scale portion 1432 that are connected to each other. The connecting portion 1431 is connected to a side of the first mounting seat 120 close to the second mounting seat 130, and the scale portion 1432 is bent along the direction of the first mounting seat 120 close to the second mounting seat 130, and a plurality of scales are evenly arranged on the scale portion 1432.

[0041] In this embodiment, the multiple scales on the scale portion 1432 can be used as reference marks to help the operator more accurately control the moving distance of the second mounting seat 130 relative to the first mounting seat 120, so as to ensure that the distance between the lens module and the image sensor 112 remains consistent or changes according to a predetermined distance during each test, thereby improving the repeatability and consistency of the test results. In addition, the presence of the identification member 143 can help the operator to accurately set the position when calibrating the test fixture, which can greatly improve the calibration efficiency when regular calibration is required.

[0042] In the embodiments of the present invention, please refer to Figures 1 to 3 The outer cover of the adjusting member 142 is provided with a contact member 1421 . The contact member 1421 is located at a side of the second mounting seat 130 away from the knob 141 and contacts the second mounting seat 130 .

[0043] In the embodiments of the present invention, please refer to Figures 1 to 3 An anti-slip member 1422 is provided at one end of the adjusting member 142 away from the knob 141 , and the anti-slip member 1422 is used to abut against a side of the first mounting seat 120 away from the second mounting seat 130 to prevent the adjusting member 142 from detaching from the first mounting seat 120 .

[0044] In this embodiment, the abutment 1421 abuts against the second mounting seat 130, providing a stable support point for the second mounting seat 130, helping to ensure that the second mounting seat 130 does not shake or tilt unnecessarily during the adjustment process. The anti-slip member 1422 abuts against the first mounting seat 120 to prevent the adjustment member 142 from accidentally falling off the first mounting seat 120 during the adjustment process, thereby improving the stability and safety of the overall structure and reducing the risk of equipment failure. The abutment 1421 and the anti-slip member 1422 work together to ensure the linear movement of the adjustment member 142 during the adjustment process, which helps to improve the accuracy of the distance adjustment between the lens module and the image sensor 112.

[0045] In the embodiments of the present invention, please refer to Figures 1 to 3 The first mounting seat 120 includes an adjusting column 121 , and a sleeve 113 is provided on a side of the base 110 close to the first mounting seat 120 , at least part of the adjusting column 121 is located in the sleeve 113 , and the adjusting column 121 is movably arranged relative to the sleeve 113 .

[0046] In the embodiments of the present invention, please refer to Figures 1 to 3The adjusting column 121 is provided with a snap-fitting protrusion 1211, and the sleeve 113 is provided with a plurality of snap-fitting holes 113a, which are arranged along the length direction of the sleeve 113, and the snap-fitting protrusion 1211 is snap-fitted to the snap-fitting hole 113a to adjust the distance between the first mounting seat 120 and the base 110.

[0047] In this embodiment, the matching design of the clamping protrusion 1211 and the clamping hole 113a allows the operator to accurately control the distance between the first mounting seat 120 and the base 110. This design ensures that the distance between the lens module and the image sensor 112 can be adjusted according to a preset increment, thereby improving the accuracy of the test; multiple clamping holes 113a are arranged along the length direction of the sleeve 113, and the operator can quickly select the appropriate clamping hole 113a position as needed to achieve rapid positioning. Through the matching of the clamping protrusion 1211 and the clamping hole 113a, it is convenient to return to the previously set position, thereby ensuring the repeatability of the test conditions.

[0048] In the embodiments of the present invention, please refer to Figures 1 to 3 The placement portion 131 is disposed on a side of the second mounting seat 130 away from the first mounting seat 120, and the placement portion 131 has a receiving cavity 131a for receiving the lens module, and the receiving cavity 131a is communicated with the second through hole 130b.

[0049] In the embodiments of the present invention, please refer to Figures 1 to 3 The accommodating cavity 131a is provided with a first positioning groove and a second positioning groove, and the first positioning groove and the second positioning groove are respectively used to place lens modules with different shell shapes.

[0050] In this embodiment, the first positioning groove (not shown in the figure) and the second positioning groove (not shown in the figure) can adapt to lens modules of different external dimensions, so that the test fixture can support multiple models of products, thereby improving the versatility of the present invention and enabling it to be flexibly used between different product lines. The positioning groove provides a stable support for the lens module, avoiding errors caused by module shaking during the test process.

[0051] In the embodiments of the present invention, please refer to Figures 1 to 3 A buffer layer is provided on a side of the placement portion 131 away from the second mounting seat 130 , and the buffer layer is located in the accommodating cavity 131 a .

[0052] In this embodiment, the buffer layer can absorb the impact force generated when placing or removing the lens module, reduce damage caused by collision, and protect the lens module from physical damage. The buffer layer can fill the gap between the lens module and the placement portion 131, improve the contact between the two, and help improve the sealing and dustproof effect during the test process.

[0053] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A lens module test fixture, characterized in that: include: A base, provided with an image sensor for detecting the lens module; A first mounting seat is movably disposed above the base, and a first through hole is formed through the first mounting seat; A second mounting seat is movably disposed on a side of the first mounting seat away from the base, the second mounting seat is provided with a placement portion for placing the lens module, and the placement portion is provided with a second through hole communicating with the first through hole; The adjustment component is arranged on the first mounting seat, and the second mounting seat adjusts the distance between the second mounting seat and the first mounting seat through the adjustment component to change the distance between the lens module and the image sensor.

2. The lens module test fixture according to claim 1, characterized in that: The adjustment assembly includes a knob and an adjustment member, the knob is located at one end of the adjustment member, the end of the adjustment member away from the knob passes through the second mounting seat and the first mounting seat in sequence, the side of the knob close to the adjustment member abuts against the second mounting seat, and rotating the knob drives the adjustment member to rotate, so as to drive the second mounting seat away from or close to the first mounting seat.

3. The lens module test fixture as claimed in claim 2, characterized in that: The adjustment assembly also includes an identification member, which includes a connecting portion and a scale portion that are connected to each other, the connecting portion is connected to a side of the first mounting seat close to the second mounting seat, the scale portion is bent along the direction of the first mounting seat close to the second mounting seat, and a plurality of scales are evenly arranged on the scale portion.

4. The lens module test fixture as claimed in claim 2, characterized in that: The outer sleeve of the adjusting member is provided with an abutment member, which is located at a side of the second mounting seat away from the knob and abuts against the second mounting seat.

5. The lens module test fixture as claimed in claim 2, characterized in that: An anti-dropping piece is provided at one end of the adjusting member away from the knob, and the anti-dropping piece is used to abut against a side of the first mounting seat away from the second mounting seat to prevent the adjusting member from being detached from the first mounting seat.

6. The lens module test fixture according to claim 1, characterized in that: The first mounting seat includes an adjusting column. A sleeve is provided on a side of the base close to the first mounting seat. At least a part of the adjusting column is located in the sleeve. The adjusting column is movably arranged relative to the sleeve.

7. The lens module test fixture as claimed in claim 6, characterized in that: The adjusting column is provided with a clamping protrusion, and the sleeve is provided with a plurality of clamping holes, which are arranged along the length direction of the sleeve. The clamping protrusion is clamped at the clamping hole to adjust the distance between the first mounting seat and the base.

8. The lens module test fixture according to claim 1, characterized in that: The placement portion is arranged on a side of the second mounting seat away from the first mounting seat, and the placement portion has an accommodating cavity for placing the lens module, and the accommodating cavity is communicated with the second through hole.

9. The lens module test fixture as claimed in claim 8, characterized in that: A first positioning groove and a second positioning groove are provided in the accommodating cavity, and the first positioning groove and the second positioning groove are respectively used to place lens modules with different shell shapes.

10. The lens module test fixture according to claim 8, characterized in that: A buffer layer is provided on a side of the placement portion away from the second mounting seat, and the buffer layer is located in the accommodating cavity.

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