A quality testing device for ink layer of lens

Abstract

The present invention belongs to the technical field of quality inspection of ink-coated optical lenses, and discloses a quality testing device for the ink layer of a lens, comprising a main sleeve, a spacer adjustment member, and a lens mechanism. The main sleeve is provided with a receiving cavity; the spacer is fixedly provided on the spacer adjustment member, which is positionally adjustable on the main sleeve and is located in the receiving cavity; the lens is fixedly provided on the lens mechanism, and the lens mechanism is elastically provided in the receiving cavity. During use, the spacer is adjusted in the receiving cavity by the spacer adjustment member so that the spacer and the lens can fit together in a natural state of the lens mechanism. The tester controls the lens mechanism to move the lens away from the spacer. When the tester disengages the lens mechanism, the lens mechanism moves toward the spacer under its own elastic force and hits the spacer, so as to simulate the actual contact between the lens and the spacer during the lens assembly process. This is repeated, and the wear of the ink layer is observed to determine whether the quality of the ink layer meets the requirements.

Description

Technical Field

[0001] The invention relates to the technical field of quality inspection of optical lens ink-coated lenses, and in particular to a quality testing device for ink layers on lenses. Background Art

[0002] A lens is a complex optical system composed of lenses and several spacers. The first lens element, exposed outside the lens, plays a crucial role in the overall imaging effect. To reduce and scatter stray light, improve imaging quality, and enhance the appearance, a layer of ink is typically applied to the end face and outer circumference of the first lens element. The quality of ink adhesion to the end face of the first lens element determines the imaging quality, durability, and aesthetic appearance of the lens. Therefore, this places higher demands on the ink adhesion quality of the first lens element. Before lens installation, the lens ink layer quality must be tested and evaluated to ensure that the ink adhesion meets the requirements.

[0003] The existing method for testing ink adhesion quality involves applying ink-strength tape to the ink surface of a lens and performing a pull test. This test method cannot simulate the wear and tear that occurs when an ink-coated lens actually contacts other components, such as spacers, during lens assembly. Therefore, it is not suitable for evaluating the quality of ink-coated lenses. Summary of the Invention

[0004] The purpose of the present invention is to provide a quality testing device for the ink layer of a lens, which can simulate the actual situation of lens assembly to test the ink layer of the lens to meet the quality evaluation of the lens.

[0005] To achieve this object, the present invention adopts the following technical solutions:

[0006] A quality testing device for an ink layer of a lens, comprising:

[0007] A main sleeve, wherein the main sleeve is provided with an accommodating cavity;

[0008] a spacer adjusting member, wherein the spacer adjusting member is adjustably disposed on the main sleeve and one end of the spacer adjusting member is located in the accommodating cavity, and a spacer is fixedly disposed on the spacer adjusting member at one end located in the accommodating cavity;

[0009] The lens mechanism is elastically arranged in the accommodating cavity, and the lens is fixedly arranged on the lens mechanism. The lens mechanism can drive the lens to collide with the spacer.

[0010] As an optional solution, the lens mechanism includes a movable column and an elastic member, the movable column is arranged in the accommodating cavity, and one end protrudes from the accommodating cavity, the lens is fixedly arranged at the other end of the movable column, and the elastic member is arranged in the accommodating cavity and clamped between the movable column and the main sleeve.

[0011] As an optional solution, along the axial direction of the main sleeve, a long slot hole that passes through the accommodating cavity is provided on the outer wall of the main sleeve, and a pin shaft is provided on the movable column. The pin shaft is limited in the long slot hole, and a position-adjustable pressure adjustment ring is also provided on the outer wall of the main sleeve. The pin shaft can abut against the pressure adjustment ring to limit the compression amount of the elastic member.

[0012] As an optional solution, the lens mechanism further includes a pressing cover, which can fix the lens on the moving column.

[0013] As an optional solution, the lens mechanism further includes a lens placement jig, the lens placement jig is mounted on the movable column, the lens is mounted in the lens placement jig, and the pressure cover fixes the lens and the lens placement jig on the movable column.

[0014] As an optional solution, a through hole is provided at one end of the movable column protruding from the accommodating cavity.

[0015] As an optional solution, the elastic member is a compression spring.

[0016] As an optional solution, one end of the spacer adjustment piece connected to the main sleeve is provided with an external thread, the inner wall of the accommodating cavity is provided with an internal thread matching the external thread, and the spacer adjustment piece is threadedly connected to the main sleeve.

[0017] As an optional solution, a threaded hole communicating with the accommodating cavity is provided on the main sleeve, and a first stop screw can be passed through the threaded hole to fix the adjusted spacer adjustment member to the main sleeve.

[0018] As an optional solution, a spacer placement jig is provided on the spacer adjustment member, the spacer placement jig is fixedly connected to the spacer adjustment member, and the spacer is fixedly provided on the spacer placement jig.

[0019] Beneficial effects of the present invention:

[0020] The present invention provides a lens ink layer quality testing device for testing the ink layer quality of the first ink-coated lens in a lens assembly to assess whether the ink layer quality of the first lens meets requirements. The lens ink layer quality testing device includes a main sleeve, a spacer adjustment member, and a lens mechanism. The main sleeve is provided with a receiving cavity; the spacer is fixedly mounted on the spacer adjustment member, which is adjustably positioned on the main sleeve and positioned within the receiving cavity; and the lens is fixedly mounted on the lens mechanism, which is elastically mounted within the receiving cavity. During use, the spacer is adjusted in the receiving cavity using the spacer adjustment member so that the spacer and lens fit together in a natural state of the lens mechanism. The tester controls the lens mechanism to move the lens away from the spacer. When the tester disengages the lens mechanism, the lens mechanism, under its own elastic force, moves toward the spacer and impacts it, simulating the actual contact between the lens and the spacer during lens assembly. This process is repeated to observe the wear of the ink layer and determine whether the ink layer quality meets requirements. The lens ink layer quality testing device can simulate the actual impact and friction between the lens and the spacer during the lens assembly process. Through repeated tests, the quality of the lens ink layer can be evaluated, ensuring the quality of the lens ink layer after lens assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 1 is a schematic structural diagram of a lens ink layer quality testing device according to an embodiment of the present invention;

[0022] Figure 2 is an exploded view of a quality testing device for an ink layer on a lens according to an embodiment of the present invention;

[0023] Figure 3 is a schematic structural diagram of a lens placement jig according to an embodiment of the present invention;

[0024] Figure 4 2 is a schematic structural diagram of a spacer placement jig according to an embodiment of the present invention.

[0025] In the picture:

[0026] 1-main sleeve; 11-accommodating chamber; 12-long slotted hole; 13-pressure adjustment ring; 131-second stop screw; 14-first stop screw;

[0027] 2-spacer adjustment member; 21-spacer placement fixture; 211-circular boss; 212-third mounting slot;

[0028] 3-lens mechanism; 31-moving column; 311-pin; 312-through hole; 32-elastic member; 33-pressing cover; 34-lens placement fixture; 341-second mounting slot;

[0029] 100-spacer; 200-lens. DETAILED DESCRIPTION

[0030] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar components or components having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present invention, but are not to be construed as limiting the present invention.

[0031] In the description of the present invention, unless otherwise expressly specified or limited, the terms "connected," "connected," and "fixed" should be understood in a broad sense. For example, they may refer to fixed or detachable connections, mechanical or electrical connections, direct or indirect connections through an intermediate medium, and internal communication between two elements or interaction between two elements. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0032] In the description of the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first feature being in direct contact with the second feature, or may include the first feature being in contact with the second feature through another feature between them instead of being in direct contact. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0033] The technical solution of the present invention will be further described below with reference to the accompanying drawings and through specific implementation methods.

[0034] An embodiment of the present invention provides a lens ink layer quality testing device for testing the ink layer quality of the first ink-coated lens in a lens system to evaluate whether the ink layer quality of the first lens meets requirements.

[0035] like Figure 1-Figure 2As shown, the lens ink layer quality measurement device includes a main sleeve 1, a spacer adjustment member 2, and a lens mechanism 3. The main sleeve 1 is provided with a receiving chamber 11; a spacer 100 is fixedly mounted on the spacer adjustment member 2, which is adjustably mounted on the main sleeve 1 and positioned within the receiving chamber 11; and a lens 200 is fixedly mounted on the lens mechanism 3, which is elastically mounted within the receiving chamber 11. During use, the spacer 100 is adjusted within the receiving chamber 11 by the spacer adjustment member 2, so that the lens mechanism 3, in its natural state, allows the spacer 100 and lens 200 to fit in contact. A tester controls the lens mechanism 3 to move the lens 200 away from the spacer 100. When the tester releases the lens mechanism 3, the lens mechanism 3, under its own elastic force, moves toward the spacer 100 and impacts it, simulating the actual contact between the lens 200 and the spacer 100 during lens assembly. This process is repeated, and the wear of the ink layer is observed to determine whether the ink layer quality meets the requirements.

[0036] The quality testing device for the ink layer of the lens 200 can simulate the actual collision and friction between the lens 200 and the spacer 100 during the lens assembly process. The quality of the ink layer of the lens 200 can be evaluated through repeated tests, thereby ensuring the quality of the ink layer of the lens 200 after the lens is assembled.

[0037] Specifically, continue to refer to Figure 1 and Figure 2 The lens mechanism 3 includes a moving column 31 and an elastic member 32. The moving column 31 is arranged in the accommodating cavity 11, and one end of the moving column 31 protrudes from the accommodating cavity 11. The lens 200 is fixedly arranged at the other end of the moving column 31. The elastic member 32 is arranged in the accommodating cavity 11 and is clamped between the moving column 31 and the main sleeve 1. In this structure, one end of the elastic member 32 abuts against the moving column 31, and the other end abuts against the main sleeve 1, so that the moving column 31 has a force to move toward the spacer 100. The tester pulls the end of the moving column 31 protruding from the accommodating cavity 11 to compress the elastic member 32. Then, after the tester releases the moving column 31, the moving column 31 moves toward the spacer 100 under the elastic force of the elastic member 32, so that the lens 200 collides with the spacer 100.

[0038] In this embodiment, the elastic member 32 is a compression spring. The compression spring is a standard component, easy to purchase, and low in cost.

[0039] In order to precisely control the elastic force of the elastic member 32 so that the collision force between the spacer 100 and the lens 200 is consistent each time during the test, an elongated slot 12 is provided on the outer wall of the main sleeve 1 along the axis of the main sleeve 1, which is in communication with the accommodating chamber 11. A pin 311 is provided on the movable column 31. The pin 311 is limited in the elongated slot 12 and protrudes out of the elongated slot 12. A pressure adjustment ring 13 is also provided on the outer wall of the main sleeve 1. The pin 311 can abut against the pressure adjustment ring 13 to limit the displacement of the movable column 31, thereby controlling the elastic force of the elastic member 32. The position of the pressure adjustment ring 13 on the main sleeve 1 is adjustable. When the tester needs to conduct a test, the position of the pressure adjustment ring 13 is adjusted to make the elastic force of the elastic member 32 consistent with the actual situation, thereby simulating the collision between the spacer 100 and the lens 200 during actual assembly to the greatest extent possible.

[0040] Reference Figure 1 and Figure 2 The pressure adjustment ring 13 is threadedly connected to the outer wall of the movable column 31. The pressure adjustment ring 13 is rotated to adjust its position relative to the main sleeve 1. Furthermore, after the pressure adjustment ring 13 is adjusted, a second set screw 131 is inserted through the pressure adjustment ring 13 and abuts against the outer wall of the main sleeve 1 to secure the pressure adjustment ring 13 to the main sleeve 1. In this embodiment, four second set screws 131 are provided, evenly distributed around the circumference and simultaneously abutting against the main sleeve 1, enhancing stability.

[0041] During actual assembly of the lens 200, the assembly pressure can be pre-determined using a pressure sensor. To enable the lens ink layer quality testing device to more accurately simulate actual assembly pressure, a through-hole 312 is provided at the end of the movable column 31 protruding from the accommodating cavity 11. During actual use, a dynamometer hook is attached to the through-hole 312, and the movable column 31 is pulled by the dynamometer. When the dynamometer pressure reaches the assembly pressure, the pressure adjustment ring 13 is rotated to abut against the pin 311, and the second set screw 131 is tightened to secure the pressure adjustment ring 13. This structure measures the elastic force of the elastic member 32 with the dynamometer and controls the elastic force to be consistent with the assembly pressure, simulating actual assembly conditions and providing more accurate test data.

[0042] In this embodiment, the pin shafts 311 and the long slot holes 12 are provided in a one-to-one correspondence, and two pin shafts 311 are respectively provided. The two pin shafts 311 are simultaneously limited in the two long slot holes 12, making the structure more reasonable.

[0043] In order to fix the lens 200 more firmly, the lens mechanism 3 further includes a pressing cover 33 . The pressing cover 33 is fixedly connected to the moving column 31 and can fix the lens 200 on the moving column 31 to prevent the lens 200 from falling off.

[0044] To accommodate a wider range of lens 200 specifications, the lens mechanism 3 further includes a lens placement jig 34. The lens 200 is mounted in the lens placement jig 34, and the pressing cover 33 secures the lens 200 and the lens placement jig 34 to the movable column 31. When the lens 200 needs to be replaced, only the lens placement jig 34 needs to be replaced at the same time.

[0045] Reference Figure 2 and Figure 3 The movable column 31 is provided with a first mounting groove, and the lens placement jig 34 is provided with a second mounting groove 341. The lens placement jig 34 is installed in the first mounting groove, and the lens 200 is installed in the second mounting groove 341. The gland 33 is threadedly connected to the movable column 31 to secure the lens 200 to the movable column 31. When replacing the lens 200, only the lens placement jig 34 that matches the specifications of the lens 200 needs to be replaced.

[0046] Continue to refer to Figure 1-Figure 2 One end of the spacer adjusting member 2 connected to the main sleeve 1 is provided with an external thread, and the inner wall of the accommodating chamber 11 is provided with an internal thread matching the external thread. The spacer adjusting member 2 is threadedly connected to the main sleeve 1. By rotating the spacer adjusting member 2, the position of the spacer adjusting member 2 in the accommodating chamber 11 can be adjusted, and then the position of the spacer 100 in the accommodating chamber 11 can be adjusted.

[0047] In order to prevent the position of the adjusted spacer adjustment member 2 from changing, a threaded hole connected to the accommodating cavity 11 is provided on the main sleeve 1. The first stop screw 14 can be passed through the threaded hole and abut against the spacer adjustment member 2 to fix the adjusted spacer adjustment member 2 to the main sleeve 1.

[0048] In order to be able to adapt to different sizes of spacers 100, refer to Figure 2 The spacer adjusting member 2 is provided with a spacer placing jig 21, which is fixedly connected to the spacer adjusting member 2, and the spacer 100 is fixedly placed on the spacer placing jig 21. This structure allows that when the spacer 100 of other specifications needs to be replaced, it is only necessary to replace the spacer placing jig 21 that is suitable for the specifications of the spacer 100.

[0049] Reference Figure 4 A circular boss 211 is provided at one end of the spacer placement jig 21. The circular boss 211 is threadedly fixedly connected to the spacer adjustment member 2 to facilitate the removal of the spacer placement jig 21. Furthermore, a third mounting groove 212 is provided at one end of the spacer placement jig 21 away from the circular boss 211. The spacer 100 is installed in the third mounting groove 212.

[0050] In this embodiment, the method of using the quality testing device for the ink layer of the lens 200 is as follows: first, use a microscope to observe the ink layer condition of the lens 200 to be tested; then install the lens 200 to be tested and the spacer 100 in the lens placement jig 34 and the spacer placement jig 21 respectively; then, adjust the pressure adjustment ring 13 to the required position; rotate the spacer adjustment member 2 in the natural state of the elastic member 32 to make the spacer 100 abut against the lens 200; then pull the movable column 31 until the pin shaft 311 abuts against the pressure adjustment ring 13 and then release it to allow the movable column 31 to drive the lens 200 to collide with the spacer 100; according to the actual number of assembly presses, make the spacer 100 and the lens 200 collide repeatedly seven times; remove the lens 200 to be tested, and then observe through a microscope whether the ink layer has fallen off to complete the test.

[0051] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Those skilled in the art will appreciate that other variations or modifications can be made based on the above description. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. A quality testing device for ink layer of lens, characterized in that: include: A main sleeve (1), wherein the main sleeve (1) is provided with an accommodating cavity (11); a spacer adjusting member (2), the spacer adjusting member (2) being adjustably arranged on the main sleeve (1) and having one end located in the accommodating cavity (11); and a spacer (100) being fixedly arranged on the spacer adjusting member (2) at one end located in the accommodating cavity (11); A lens mechanism (3) is elastically arranged in the accommodating cavity (11), and a lens (200) is fixedly arranged on the lens mechanism (3), and the lens mechanism (3) is capable of driving the lens (200) to collide with the spacer (100); The lens mechanism (3) comprises a movable column (31) and an elastic member (32); the movable column (31) is arranged in the accommodating cavity (11), and one end thereof protrudes from the accommodating cavity (11); the lens (200) is fixedly arranged at the other end of the movable column (31); the elastic member (32) is arranged in the accommodating cavity (11), and is sandwiched between the movable column (31) and the main sleeve (1); Along the axial direction of the main sleeve (1), an elongated slotted hole (12) penetrating the accommodating cavity (11) is provided on the outer wall of the main sleeve (1), a pin shaft (311) is provided on the movable column (31), and the pin shaft (311) is limited in the elongated slotted hole (12). A position-adjustable pressure regulating ring (13) is also provided on the outer wall of the main sleeve (1), and the pin shaft (311) can abut against the pressure regulating ring (13) to limit the compression amount of the elastic member (32); A through hole (312) is provided at one end of the movable column (31) protruding from the accommodating cavity (11).

2. The lens ink layer quality testing device according to claim 1, characterized in that: The lens mechanism (3) further comprises a pressing cover (33), and the pressing cover (33) is capable of fixing the lens (200) on the movable column (31).

3. The lens ink layer quality testing device according to claim 2, characterized in that: The lens mechanism (3) further comprises a lens placement jig (34), wherein the lens placement jig (34) is mounted on the movable column (31), the lens (200) is mounted in the lens placement jig (34), and the pressure cover (33) fixes the lens (200) and the lens placement jig (34) on the movable column (31).

4. The lens ink layer quality testing device according to claim 1, characterized in that: The elastic member (32) is a compression spring.

5. The lens ink layer quality testing device according to any one of claims 1 to 4, characterized in that: One end of the spacer adjusting member (2) connected to the main sleeve (1) is provided with an external thread, and the inner wall of the accommodating cavity (11) is provided with an internal thread matching the external thread, and the spacer adjusting member (2) is threadedly connected to the main sleeve (1).

6. The lens ink layer quality testing device according to claim 5, characterized in that: The main sleeve (1) is provided with a threaded hole communicating with the accommodating cavity (11), and a first stop screw (14) can be passed through the threaded hole and fix the adjusted spacer adjustment member (2) to the main sleeve (1).

7. The lens ink layer quality testing device according to any one of claims 1 to 4, characterized in that: A spacer placement jig (21) is provided on the spacer adjustment member (2), the spacer placement jig (21) is fixedly connected to the spacer adjustment member (2), and the spacer (100) is fixedly provided on the spacer placement jig (21).

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