Optical lens coating thickness detection device

Abstract

The utility model discloses an optical lens coating thickness detection device which comprises a detection platform, the upper surface of the detection platform is fixedly connected with a second installation rod, the upper end of the second installation rod is provided with a focusing light source, the lower surface of the focusing light source is fixedly connected with an insertion rod, and the insertion rod extends into the second installation rod. A spring is fixedly connected into the second mounting rod, one end of the spring is fixedly connected with a fixing block, the end, away from the spring, of the fixing block is slidably connected with the interior of the inserting rod, a special-shaped groove is formed in the fixing block, the inner wall of the special-shaped groove is slidably connected with a pushing rod, and the outer surface of the pushing rod is slidably connected with the interior of the second mounting rod; when the focusing light source is not used, dust prevention can be conducted on the reflection plane mirror, the cleaning difficulty of the worker is reduced, the cleaning frequency of the reflection plane mirror is reduced, and the service life is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of optical lens processing technology, specifically to an optical lens coating thickness detection device. Background Technology

[0002] A coating is a thin film applied to a lens. Lens coatings reduce reflection and improve abrasion resistance. However, the thickness of the coating is relatively small and difficult to measure with ordinary tools. Therefore, a detection device is needed to detect the thickness of the lens coating.

[0003] Existing optical lens coating thickness detection devices are cumbersome to disassemble and maintain when the focusing light source cannot focus and provide the required light for detection. They also lack dust protection. When the device is not in use, dust easily accumulates on the reflecting plane mirror, requiring cleaning before use. However, repeated cleaning of the reflecting plane mirror can easily damage it. This new device facilitates disassembly for workers when the focusing light source is damaged, improving work efficiency. When not in use, it can protect the reflecting plane mirror from dust, reducing the difficulty and frequency of cleaning and extending its service life. Utility Model Content

[0004] The purpose of this invention is to provide an optical lens coating thickness detection device that solves the problems of difficult disassembly and maintenance of the light source when the focusing light source cannot focus and cannot provide the light required for detection, lack of dust protection, and easy accumulation of dust on the reflecting plane mirror when the device is not in use, which requires cleaning before use, but repeated cleaning of the reflecting plane mirror can easily cause damage.

[0005] To achieve the above objectives, an optical lens coating thickness detection device is provided, comprising: a detection platform, a second mounting rod fixedly connected to the upper surface of the detection platform, a focusing light source disposed at the upper end of the second mounting rod, an insert rod fixedly connected to the lower surface of the focusing light source, the insert rod extending into the interior of the second mounting rod, a spring fixedly connected inside the second mounting rod, a fixing block fixedly connected to one end of the spring, a sliding connection between the end of the fixing block away from the spring and the interior of the insert rod, a shaped groove formed inside the fixing block, a push rod slidably connected to the inner wall of the shaped groove, a sliding connection between the outer surface of the push rod and the interior of the second mounting rod, a sliding rod fixedly connected to the side of the push rod, and a sliding rod extending to the outside of the second mounting rod at the end away from the push rod. This device facilitates disassembly by operators when the focusing light source is damaged, resulting in high work efficiency.

[0006] A cylinder is fixedly connected to the side of the detection platform, and a second piston cylinder is fixedly connected to the inner wall of the detection platform. A second piston rod is slidably connected inside the second piston cylinder, with one end of the second piston rod extending outside the second piston cylinder and fixedly connected to the output end of the cylinder. One end of the second piston cylinder is connected to a first piston cylinder. Two first piston rods are slidably connected inside the first piston cylinder, with one end of each of the two first piston rods extending outside the first piston cylinder. A detection groove is provided on the upper surface of the detection platform, and two baffles are slidably connected inside the detection groove. One end of each of the two baffles extends inside the detection platform and is fixedly connected to the side of each of the two first piston rods. When not in use, this design can prevent dust from entering the reflecting plane mirror, reducing the difficulty of cleaning for staff, reducing the frequency of cleaning the reflecting plane mirror, and helping to extend its service life.

[0007] According to the optical lens coating thickness detection device, the upper end of the push rod is provided with an inclined surface that matches the inner wall of the irregular groove, and the insertion rod is square. The inclined surface of the push rod cooperates with the inclined surface of the fixing block to facilitate the control of the movement of the fixing block.

[0008] According to the optical lens coating thickness detection device, a first mounting rod is fixedly connected to the upper surface of the detection platform, and a photosensitive screen is fixedly connected to the side of the first mounting rod. The photosensitive screen is used to sense reflected light, so as to easily obtain the coating reflected light and the distance of the coating reflected light on the photosensitive screen.

[0009] According to the optical lens coating thickness detection device, the upper surface of the detection platform is detachably equipped with a reflective plane mirror, and the inner wall of the detection slot of the detection platform is provided with a sliding groove. The light is reflected onto the photosensitive screen by the reflective plane mirror, and the slide is convenient for the baffle to slide.

[0010] According to the optical lens coating thickness detection device, a support rod is fixedly connected to one side of the upper surface of the detection platform, and a display screen is fixedly connected to the upper end of the support rod for control purposes.

[0011] According to the optical lens coating thickness detection device, support legs are fixedly connected to the four corners of the lower surface of the detection platform. The support legs are all cylindrical and are used to support the device and reduce contact with the ground.

[0012] According to the optical lens coating thickness detection device, the first piston rod is L-shaped, and the width of the baffle matches the width of the detection groove on the detection platform. The L-shaped first piston rod facilitates the synchronous movement of the baffle with it.

[0013] According to the optical lens coating thickness detection device, the lower end of the support leg is fixedly connected to a pad, and the lower surface of the pad is provided with anti-slip grooves to increase friction with the ground and improve the stability of the device.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. When the focusing light source is damaged, the operator can use the sliding rod to move the push rod upward. The inclined surface of the push rod cooperates with the inclined surface of the irregular groove to move the fixing block backward, thereby releasing the limitation on the focusing light source. The elasticity of the spring can automatically push the rod to move and fix the focusing light source, which makes it convenient for the operator to repair or replace the damaged focusing light source and improves work efficiency.

[0016] 2. When using the device, the cylinder pushes the second piston rod to slide inside the second piston cylinder, thereby reducing the internal pressure. The external pressure causes the two first piston rods to slide inside the first piston cylinder, bringing them closer together and closing the two baffles synchronously. This can prevent dust from entering the reflecting plane mirror, reduce the difficulty of cleaning for workers, reduce the frequency of cleaning the reflecting plane mirror, and help extend its service life.

[0017] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0019] Figure 1 This is a perspective view of an optical lens coating thickness detection device according to the present invention;

[0020] Figure 2 This is a front sectional view of an optical lens coating thickness detection device according to the present invention;

[0021] Figure 3 This utility model relates to an optical lens coating thickness detection device. Figure 2 Enlarged view of point A in the middle;

[0022] Figure 4 This is a top sectional view of an optical lens coating thickness detection device according to the present invention.

[0023] In the diagram: 1. Detection platform; 2. First mounting rod; 3. Photosensitive screen; 4. Reflective plane mirror; 5. Focusing light source; 6. Second mounting rod; 7. Display screen; 8. Support rod; 9. Sliding rod; 10. Cylinder; 11. Baffle; 12. First piston rod; 13. First piston cylinder; 14. Second piston rod; 15. Second piston cylinder; 16. Irregular groove; 17. Fixing block; 18. Spring; 19. Push rod; 20. Insert rod; 21. Pad; 22. Support leg. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1-4 This utility model provides a technical solution: an optical lens coating thickness detection device, comprising: a detection platform 1, a second mounting rod 6 fixedly connected to the upper surface of the detection platform 1 to provide a mounting base, a focusing light source 5 provided at the upper end of the second mounting rod 6 to provide a light source, an insertion rod 20 fixedly connected to the lower surface of the focusing light source 5 for insertion, the insertion rod 20 extending into the interior of the second mounting rod 6, a spring 18 fixedly connected inside the second mounting rod 6, the spring 18 elastically pushing a fixing block 17 to fix the focusing light source 5, one end of the spring 18 fixedly connected to the fixing block 17, the end of the fixing block 17 away from the spring 18 slidingly connected to the interior of the insertion rod 20, a shaped groove 16 opened inside the fixing block 17, the movement of the fixing block 17 is controlled by the inclined surface inside the shaped groove 16 and the inclined surface on the push rod 19, the inner wall of the shaped groove 16 slidingly connected to the push rod 19, the outer surface of the push rod 19 slidingly connected to the interior of the second mounting rod 6, a sliding rod 9 fixedly connected to the side of the push rod 19 for pushing the push rod 19 to move, the end of the sliding rod 9 away from the push rod 19 extending to the outside of the second mounting rod 6;

[0026] A cylinder 10 is fixedly connected to the side of the detection platform 1 to provide power. A second piston cylinder 15 is fixedly connected to the inner wall of the detection platform 1 to provide a basis for the movement of the second piston rod 14. The second piston rod 14 is slidably connected inside the second piston cylinder 15. The movement of the second piston rod 14 synchronously drives the movement of the two first piston rods 12. One end of the second piston rod 14 extends to the outside of the second piston cylinder 15 and is fixedly connected to the output end of the cylinder 10. One end of the second piston cylinder 15 is connected to the first piston cylinder 13. The two first piston rods 12 are slidably connected inside the first piston cylinder 13. The first piston rods 12 drive the movement of the baffle 11. One end of each first piston rod 12 extends to the outside of the first piston cylinder 13. A detection groove is provided on the upper surface of the detection platform 1. Two baffles 11 are slidably connected inside the detection groove for dust prevention. One end of each baffle 11 extends into the detection platform 1 and is fixedly connected to the side of each of the two first piston rods 12. According to the principle of refraction angle L×cos(a)=2×(H×tg45°-H×tg(45°-a)), we can obtain H=L×cos(a) / (1-tg(45°-a)) / 2, where L is the distance between the positions of the two reflected rays on the photosensitive screen 3, a is the refraction angle of the coating, and H is the coating thickness.

[0027] The upper end of the push rod 19 is provided with an inclined surface that matches the inner wall of the irregular groove 16. The insertion rod 20 is square to increase the installation stability of the focusing light source 5. The first mounting rod 2 is fixedly connected to the upper surface of the detection platform 1. The photosensitive screen 3 is fixedly connected to the side of the first mounting rod 2. The upper surface of the detection platform 1 is detachably provided with a reflective plane mirror 4. The inner wall of the detection groove opened on the detection platform 1 is provided with a sliding groove to facilitate the sliding of the baffle 11. The support rod 8 is fixedly connected to one side of the upper surface of the detection platform 1. The upper end of the support rod 8 is fixedly connected to the display screen 7. The four corners of the lower surface of the detection platform 1 are all fixedly connected to support legs 22. The support legs 22 are all cylindrical. The first piston rod 12 is L-shaped. The width of the baffle 11 matches the width of the detection groove on the detection platform 1. The lower end of the support leg 22 is fixedly connected to the pad 21. The lower surface of the pad 21 is provided with an anti-slip groove.

[0028] Working principle: In use, first place the uncoated lens on the reflecting plane mirror 4, then turn on the focusing light source 5 to illuminate the lens. The light is reflected by the reflecting plane mirror 4 onto the photosensitive screen 3, creating a projection point. Then place the coated lens on the reflecting plane mirror 4, and in the same way, determine the position of the light on the photosensitive screen 3. The distance between the two reflected rays on the photosensitive screen 3 is measured by the coating refraction angle. The coating thickness is determined by the principle of refraction angle. When the focusing light source 5 cannot provide the light source conditions required for detection, the operator can move the push rod 19 upward by sliding the rod 9. The inclined surface of the push rod 19 cooperates with the inclined surface of the irregular groove 16 to fix the lens. Block 17 releases the fixation of the focusing light source 5, and the elasticity of spring 18 uses push rod 19 to fix the focusing light source 5, making it convenient for staff to repair or replace the damaged focusing light source 5, which helps improve work efficiency. After the test is completed, cylinder 10 is activated, which pushes the second piston rod 14 to slide inside the second piston cylinder 15, reducing the internal pressure. The external pressure causes the two first piston rods 12 to slide inside the first piston cylinder 13, bringing them closer together and thus closing the two baffles 11. This prevents dust from entering the reflecting plane mirror 4, reduces the difficulty of cleaning for staff, reduces the frequency of cleaning the reflecting plane mirror 4, and helps extend its service life. The embodiments of this utility model have been described in detail above with reference to the accompanying drawings. However, this utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this utility model.

Claims

1. An optical lens coating thickness detection device, comprising: The detection platform (1) is characterized in that a second mounting rod (6) is fixedly connected to the upper surface of the detection platform (1), a focusing light source (5) is provided at the upper end of the second mounting rod (6), a plug rod (20) is fixedly connected to the lower surface of the focusing light source (5), the plug rod (20) extends into the interior of the second mounting rod (6), a spring (18) is fixedly connected inside the second mounting rod (6), a fixing block (17) is fixedly connected to one end of the spring (18), the end of the fixing block (17) away from the spring (18) is slidably connected to the interior of the plug rod (20), a shaped groove (16) is opened inside the fixing block (17), a push rod (19) is slidably connected to the inner wall of the shaped groove (16), the outer surface of the push rod (19) is slidably connected to the interior of the second mounting rod (6), a sliding rod (9) is fixedly connected to the side of the push rod (19), and the end of the sliding rod (9) away from the push rod (19) extends to the outside of the second mounting rod (6); The detection platform (1) is fixedly connected to the side of the cylinder (10), and the inner wall of the detection platform (1) is fixedly connected to the second piston cylinder (15). The second piston cylinder (15) is slidably connected to the second piston rod (14). One end of the second piston rod (14) extends to the outside of the second piston cylinder (15) and is fixedly connected to the output end of the cylinder (10). One end of the second piston cylinder (15) is connected to the first piston cylinder (13). The first piston cylinder (13) is slidably connected to two first piston rods (12). One end of each of the two first piston rods (12) extends to the outside of the first piston cylinder (13). The detection platform (1) is provided with a detection groove on its upper surface. The detection groove is slidably connected to two baffles (11). One end of each of the two baffles (11) extends to the inside of the detection platform (1) and is fixedly connected to the side of each of the two first piston rods (12).

2. The optical lens coating thickness detection device as described in claim 1, characterized in that: The upper end of the push rod (19) is provided with an inclined surface that matches the inner wall of the irregular groove (16), and the insertion rod (20) is square.

3. The optical lens coating thickness detection device as described in claim 1, characterized in that: The detection platform (1) is fixedly connected to the upper surface of the first mounting rod (2), and the first mounting rod (2) is fixedly connected to the side of the light sensor screen (3).

4. The optical lens coating thickness detection device as described in claim 1, characterized in that: The upper surface of the detection platform (1) is detachably equipped with a reflective plane mirror (4), and the inner wall of the detection slot opened in the detection platform (1) is provided with a sliding groove.

5. The optical lens coating thickness detection device as described in claim 1, characterized in that: The testing platform (1) has a support rod (8) fixedly connected to one side of its upper surface, and the upper end of the support rod (8) is fixedly connected to a display screen (7).

6. The optical lens coating thickness detection device as described in claim 1, characterized in that: The detection platform (1) has four fixed support legs (22) at the four corners of its lower surface, and the support legs (22) are all cylindrical.

7. The optical lens coating thickness detection device as described in claim 1, characterized in that: The first piston rod (12) is L-shaped, and the width of the baffle (11) matches the width of the detection groove on the detection platform (1).

8. The optical lens coating thickness detection device as described in claim 6, characterized in that: The lower end of the support leg (22) is fixedly connected to the pad (21), and the lower surface of the pad (21) is provided with anti-slip grooves.

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