Optical lens testing device and method

Abstract

The present invention relates to the field of lens testing technology, and specifically to an optical lens testing lens device and method, comprising a base, wherein the upper end of the base is slidably connected to a first sliding block and a second sliding block, the upper end of the first sliding block is fixedly connected to a first shell, the upper end of the second sliding block is fixedly connected to the second shell, the interior of the second shell is fixedly connected to a bottom plate, the upper end of the bottom plate is provided with a cover plate, the upper end of the base is provided with a fitting mechanism, the interior of the second shell is provided with a covering mechanism, the interior of the bottom plate is provided with a toggle mechanism, the upper end of the bottom plate is slidably connected to an arc plate, the interior of the arc plate is provided with a lamp bead, the surface of the arc plate is provided with a protective mechanism, and the upper end of the bottom plate is provided with an exhaust mechanism; the optical lens is sealed between the cover plate and the bottom plate to avoid the influence of external gas flow on the test, and at the same time the arc plate will toggle the optical lens to the center position of the bottom plate, and vacuum is extracted between the cover plate and the bottom plate through the suction pipe, thereby improving the test accuracy.

Description

Technical Field

[0001] The present invention relates to the technical field of lens testing, and in particular to a device and method for testing an optical lens. Background Art

[0002] The optical lens testing device is a device designed specifically for testing the performance and quality of optical lenses. It is a professional device specifically used to detect, measure and evaluate the performance and quality of optical lenses. It integrates precise mechanical structures, optical components, electronic measurement systems and data processing software, and can perform comprehensive and accurate tests on various optical parameters, physical properties and surface quality of lenses.

[0003] In the optical lens testing device of the prior art, the movement of airflow will drive the movement of dust particles during the test. If these dust particles adhere to the surface of the optical element, they will increase the scattering of light and reduce the optical quality of the optical element. Airflow disturbances, airflow disturbances inside or around the device may cause tiny particles on the surface of the optical lens to move. These particles will scatter light, thereby affecting the accuracy of the test. Therefore, it is necessary to optimize the airflow design of the device and reduce airflow disturbances, such as using a better sealed test environment, or setting up an airflow barrier in the test area. In addition, in the optical lens testing device, it is necessary to ensure that the lens under test is strictly centered with the test light path. This is a key prerequisite for ensuring test accuracy. Summary of the Invention

[0004] In response to the problems in the prior art, the present invention provides an optical lens testing device and method.

[0005] The technical solution adopted by the present invention to solve its technical problems is: an optical lens testing lens device and method, including a base, the upper end of the base is slidably connected to a first sliding block and a second sliding block, the upper end of the first sliding block is fixedly connected to a first shell, the upper end of the second sliding block is fixedly connected to the second shell, the second shell is fixedly connected to a bottom plate inside, the upper end of the bottom plate is provided with a cover plate, the upper end of the base is provided with a fitting mechanism for bringing the first shell and the second shell together, the inside of the second shell is provided with a covering mechanism for covering the cover plate on the upper end of the bottom plate, the bottom plate is provided with a toggling mechanism for toggling the optical lens to the center position of the bottom plate, the upper end of the bottom plate is slidably connected to an arc plate, the inside of the arc plate is provided with a lamp bead, the surface of the arc plate is provided with a protection mechanism for protecting the lamp bead, and the upper end of the bottom plate is provided with an exhaust mechanism for vacuuming between the cover plate and the bottom plate.

[0006] Preferably, the first sliding block is slidably connected to a first sliding rod inside, the first sliding rod is slidably connected to a second sliding block on the surface, the upper end of the second sliding block is fixedly connected to a second shell, an opening is provided inside the second shell, one end of the second sliding block is fixedly connected to a first connecting tube, a detector is provided at the upper and lower ends of the inner surface of the first shell, a first spring is provided on the outside of the first sliding rod, one end of the first spring is fixedly connected to the base, and the other end of the first spring is fixedly connected to the second sliding block.

[0007] Preferably, the fitting mechanism includes a hydraulic cylinder, the non-output end of the hydraulic cylinder is mounted on the upper end of the base, the output end of the hydraulic cylinder is fixedly connected to a first steel wire rope, and a first rotating pin is fitted to the surface of the first steel wire rope.

[0008] Preferably, the fitting mechanism further includes a piston, one end of the first steel wire rope is fixedly connected to the piston, one end of the piston is fixedly connected to a second spring, and one end of the second spring is fixedly connected to the second sliding block.

[0009] Preferably, the covering mechanism includes an elastic rope, one end of the elastic rope is fixedly connected to the base, a first sleeve is slidably connected to the surface of the elastic rope, a second rotating pin is attached to the surface of the elastic rope, both ends of the second rotating pin are rotatably connected to the first sleeve, a second connecting tube is slidably connected inside the first sleeve, the second connecting tube is slidably connected to the opening, a third spring is fixedly connected to the lower end of the second connecting tube, the lower end of the first sleeve is fixedly connected to the first connecting tube, and one end of the second connecting tube is fixedly connected to a cover plate.

[0010] Preferably, the toggle mechanism includes a second sleeve, the lower end of the second sleeve is elastically connected to the base plate via a torsion spring, a guide groove is provided inside the second sleeve, and the second sliding rod is elastically connected inside the second sleeve via a compression spring.

[0011] Preferably, the toggle mechanism also includes a round rod, the lower end surface of the second sliding rod is fixedly connected to the round rod, the round rod is slidably connected to the guide groove, the surface of the second sleeve is fixedly connected to an arc plate, a hollow groove is opened inside the arc plate, and a lamp bead is fixedly connected inside the hollow groove.

[0012] Preferably, the protection mechanism includes a third sliding rod, the third sliding rod is elastically connected to the arc plate via a compression spring, one end of the third sliding rod is fixedly connected to a baffle, and the baffle is in contact with the arc plate.

[0013] Preferably, the air extraction mechanism includes an air suction pipe, and the upper end of the air suction pipe is fixedly connected to the cover plate.

[0014] A method for testing an optical lens, applicable to the aforementioned device for testing an optical lens, specifically comprising the following steps:

[0015] S1, place the optical lens on the upper end of the base plate, and start the hydraulic cylinder to move toward the end away from the first shell when the optical lens is to be aligned. The movement of the hydraulic cylinder to one end will drive the first steel wire rope to move toward one end. The first steel wire rope moves to one end and passes through the reversal of the first rotating pin. The first steel wire rope will drive the piston to move toward the end close to the first shell. The movement of the piston to one end will drive the second sliding block to move toward one end. The movement of the second sliding block to one end will pull the first spring. The movement of the second sliding block to one end will drive the second shell to fit the first shell. The second shell and the first shell will form a closed space. The second shell and the first shell are made of glass to facilitate observation and light entry. The optical lens is subsequently tested through two detectors set inside the first shell.

[0016] S2, when the second sliding block moves toward one end and away from the elastic cord, the elastic cord pulls the second connecting tube downward, which compresses the third spring. The downward movement of the second connecting tube drives the cover plate downward, and the cover plate covers the upper end of the bottom plate. Both the cover plate and the bottom plate are made of glass.

[0017] S3, when the cover plate moves downward, it will drive the second sliding rod to move downward, and the downward movement of the second sliding rod will drive the round rod to move downward. The downward movement of the second sliding rod will compress the compression spring inside the second sleeve. The round rod will move downward in the guide groove and drive the second sleeve to rotate. The second sleeve will compress the spring between the second sleeve and the bottom plate. The rotation of the second sleeve will drive the arc plate to rotate. The spring steel material inside the arc plate has a certain elasticity. The outer surface of the arc plate is made of rubber. The rotation of the arc plate will move the optical lens to the center position of the bottom plate;

[0018] S4, when the cover moves downward, it also drives the third sliding rod to move downward, and the downward movement of the third sliding rod drives the baffle to move downward. The baffle moves downward away from the hollow groove. At this time, the light generated by the lamp beads will illuminate the surface of the optical lens. When the cover moves upward, the baffle will cover the hollow groove to prevent external dust and impurities from adhering to the surface of the lamp beads;

[0019] S5. After the cover is closed on the upper end of the base plate, the first steel wire rope will pull the piston to compress the second spring. The movement of the piston toward the end away from the first connecting tube will generate negative pressure inside the second sliding block. Negative pressure is generated inside the second sliding block, and air is exhausted between the cover and the base plate through the first connecting tube, the first sleeve, the second connecting tube, the cover, and the suction pipe. The cover is provided with through holes around it for connecting the second connecting tube and the suction pipe, which will not affect the transparency of the center position of the cover. The space between the cover and the base plate is vacuumed, and the sealed vacuum environment provides interference-free, highly controllable, and highly restored conditions for optical lens testing, thereby improving the test accuracy.

[0020] Beneficial effects of the present invention:

[0021] The optical lens testing device and method described in the present invention, by setting the second shell and the first shell to be made of glass, facilitates observation and the entry of light. When the hydraulic cylinder is started to move toward the end away from the first shell, it will drive the second shell to fit the first shell to form a closed space, which has the function of preventing dust and blocking airflow.

[0022] In the optical lens testing device and method described in the present invention, when the second sliding block moves toward one end close to the first shell, the cover plate moves downward to cover the upper end of the base plate. Both the cover plate and the base plate are made of glass. The cover plate covering the upper end of the base plate will seal the internal optical lens. The sealing of the cover plate between the base plates can further prevent the influence of external gas flow on the test results.

[0023] The optical lens testing device and method described in the present invention can drive the arc plate to rotate while the cover plate moves downward, thereby moving the optical lens to the center position of the base plate.

[0024] The present invention describes an optical lens testing device and method. When a baffle is set up and a cover is placed on the base plate, the baffle will be away from the hollow groove. At this time, the light generated by the lamp beads will illuminate the surface of the optical lens. When the cover is opened, the baffle will cover the hollow groove to prevent external dust and impurities from adhering to the surface of the lamp beads.

[0025] The optical lens testing device and method described in the present invention improves the testing accuracy by arranging an air suction pipe between the cover plate and the base plate, and drawing a vacuum between the cover plate and the base plate after the cover plate is covered on the upper end of the base plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The present invention will be further described below with reference to the accompanying drawings and examples.

[0027] Figure 1 A schematic diagram of the overall structure provided by the present invention;

[0028] Figure 2 is a structural diagram of the first sliding block being connected to the first housing;

[0029] Figure 3 is a structural diagram of the second sliding block being connected to the second housing;

[0030] Figure 4 is a structural diagram of the base plate;

[0031] Figure 5 Schematic diagram of the structure when the piston is connected to the second spring;

[0032] Figure 6 is a schematic structural diagram of the second sliding rod;

[0033] Figure 7 for Figure 6 A partial enlarged view of part A;

[0034] Figure 8 Schematic diagram of the structure of the guide groove;

[0035] Figure 9 It is a structural diagram of the hollow tank;

[0036] Figure 10 Schematic diagram of the cover structure.

[0037] In the figure: 100, base; 200, first sliding block; 201, first housing; 202, first sliding rod; 203, second sliding block; 204, second housing; 2041, opening; 205, detector; 206, first spring; 207, bottom plate; 208, first connecting pipe; 300, fitting mechanism; 301, hydraulic cylinder; 302, first steel wire rope; 303, first rotating pin; 304, piston; 305, second spring; 400, covering mechanism; 4 01. Elastic rope; 402. Second rotating pin; 403. Second connecting tube; 404. First sleeve; 405. Cover plate; 406. Third spring; 500. Toggle mechanism; 501. Second sleeve; 5011. Guide groove; 502. Second sliding rod; 503. Arc plate; 5031. Hollow groove; 5032. Lamp bead; 504. Round rod; 600. Protection mechanism; 601. Third sliding rod; 602. Baffle; 700. Exhaust mechanism; 701. Intake pipe. DETAILED DESCRIPTION

[0038] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0039] like Figures 1-10As shown, an optical lens testing device according to the present invention includes a base 100, the upper end of which is slidably connected to a first sliding block 200 and a second sliding block 203, the upper end of the first sliding block 200 is fixedly connected to a first housing 201, the upper end of the second sliding block 203 is fixedly connected to a second housing 204, the interior of the second housing 204 is fixedly connected to a bottom plate 207, the upper end of the bottom plate 207 is provided with a cover plate 405, and the upper end of the base 100 is provided with a fitting for bringing the first housing 201 and the second housing 204 together. Mechanism 300, a covering mechanism 400 for covering the cover 405 on the upper end of the base plate 207 is provided inside the second shell 204, a moving mechanism 500 for moving the optical lens to the center position of the base plate 207 is provided inside the base plate 207, an arc plate 503 is slidably connected to the upper end of the base plate 207, a lamp bead 5032 is provided inside the arc plate 503, a protection mechanism 600 for protecting the lamp bead 5032 is provided on the surface of the arc plate 503, and an exhaust mechanism 700 for vacuuming the space between the cover 405 and the base plate 207 is provided on the upper end of the base plate 207.

[0040] Specifically, the first sliding block 200 is slidably connected to the first sliding rod 202, the surface of the first sliding rod 202 is slidably connected to the second sliding block 203, the upper end of the second sliding block 203 is fixedly connected to the second shell 204, the second shell 204 is provided with an opening 2041, one end of the second sliding block 203 is fixedly connected to the first connecting tube 208, a detector 205 is provided on the upper and lower ends of the inner surface of the first shell 201, the outside of the first sliding rod 202 is sleeved with a first spring 206, one end of the first spring 206 is fixedly connected to the base 100, and the other end of the first spring 206 is fixedly connected to the second sliding block 203.

[0041] In addition, the fitting mechanism 300 includes a hydraulic cylinder 301, the non-output end of the hydraulic cylinder 301 is installed at the upper end of the base 100, the output end of the hydraulic cylinder 301 is fixedly connected to the first steel wire rope 302, the surface of the first steel wire rope 302 is fitted with a first rotating pin 303, one end of the first steel wire rope 302 is fixedly connected to a piston 304, one end of the piston 304 is fixedly connected to a second spring 305, one end of the second spring 305 is fixedly connected to the second sliding block 203; when in use, the optical lens is placed on the upper end of the bottom plate 207, and before testing the optical lens, the hydraulic cylinder 301 is started to move toward the end away from the first shell 201, and the movement of the hydraulic cylinder 301 to one end will drive the first steel wire rope 302 to move. The rope 302 moves toward one end, and the first steel wire rope 302 moves toward one end through the reversal of the first rotating pin 303. The first steel wire rope 302 will drive the piston 304 to move toward one end close to the first shell 201. The piston 304 moves toward one end and drives the second sliding block 203 to move toward one end. The second sliding block 203 moves toward one end and pulls the first spring 206. The second sliding block 203 moves toward one end and drives the second shell 204 to fit the first shell 201. The second shell 204 fits the first shell 201 to form a closed space. The second shell 204 and the first shell 201 are made of glass, which is convenient for observation and light entry. The optical lens is subsequently tested by two detectors 205 set inside the first shell 201.

[0042] Furthermore, the covering mechanism 400 includes an elastic rope 401, one end of which is fixedly connected to the base 100, a first sleeve 404 being slidably connected to the surface of the elastic rope 401, a second rotating pin 402 being attached to the surface of the elastic rope 401, both ends of the second rotating pin 402 being rotatably connected to the first sleeve 404, a second connecting tube 403 being slidably connected inside the first sleeve 404, the second connecting tube 403 being slidably connected to the opening 2041, a third spring 406 being fixedly connected to the lower end of the second connecting tube 403, a first sleeve 404 being fixedly connected to the first connecting tube 208, and the second connecting tube 403 being fixedly connected to the lower end of the third spring 406. One end of the connecting pipe 403 is fixedly connected to a cover plate 405; when the second sliding block 203 moves toward one end, it will move away from the elastic rope 401. At this time, the elastic rope 401 will pull the second connecting pipe 403 downward to move downward. The downward movement of the second connecting pipe 403 will compress the third spring 406. The downward movement of the second connecting pipe 403 will drive the cover plate 405 to move downward. The downward movement of the cover plate 405 will cover the upper end of the bottom plate 207. Both the cover plate 405 and the bottom plate 207 are made of glass. The cover plate 405 covering the upper end of the bottom plate 207 will seal the internal optical lens. The sealing of the cover plate 405 between the bottom plate 207 can prevent the influence of external gas flow on the detection results.

[0043] It should be noted that the toggle mechanism 500 includes a second sleeve 501, the lower end of the second sleeve 501 is elastically connected to the bottom plate 207 by a torsion spring, a guide groove 5011 is provided inside the second sleeve 501, and a second sliding rod 502 is elastically connected to the inside of the second sleeve 501 through a compression spring, a round rod 504 is fixedly connected to the lower end surface of the second sliding rod 502, and the round rod 504 is slidably connected to the guide groove 5011, and an arc plate 503 is fixedly connected to the surface of the second sleeve 501, a hollow groove 5031 is provided inside the arc plate 503, and a lamp bead 5032 is fixedly connected inside the hollow groove 5031; in the optical lens testing device, it is necessary to ensure that the tested lens is strictly centered with the test light path, which is a key prerequisite for ensuring the test accuracy. When the cover plate 405 moves downward, it will drive the second sliding rod 502 to The second sleeve 501 is rotated by the second sliding rod 502, and the second sleeve 501 is compressed by the second sliding rod 502. The second sleeve 501 is rotated by the second sliding rod 502, and the second sleeve 501 is compressed by the second sliding rod 502. The spring between the second sleeve 501 and the base plate 207 is rotated by the second sleeve 501. The rotation of the second sleeve 501 drives the arc plate 503 to rotate. The spring steel material inside the arc plate 503 has a certain elasticity, and the outer surface of the arc plate 503 is made of rubber. The rotation of the arc plate 503 will move the optical lens and move the optical lens to the center position of the base plate 207. At the same time, the arc plate 503 has a certain elasticity, and the surface of the arc plate 503 is made of rubber, which makes the arc plate 503 push the optical lens gently, and will not cause damage to the optical lens during the process of moving the optical lens.

[0044] Specifically, the protection mechanism 600 includes a third sliding rod 601, the third sliding rod 601 is elastically connected to the arc plate 503 by a compression spring, one end of the third sliding rod 601 is fixedly connected to a baffle 602, and the baffle 602 is in contact with the arc plate 503; when the cover plate 405 moves downward, the third sliding rod 601 will also move downward, and the third sliding rod 601 will move downward, and the baffle 602 will move downward away from the hollow groove 5031. At this time, the light generated by the lamp bead 5032 will irradiate the surface of the optical lens, and the baffle 602 will be in contact with the arc plate 503 when the cover plate 405 moves upward. The plate 602 will cover the hollow groove 5031 to prevent external dust and impurities from adhering to the surface of the lamp bead 5032. The dust will scatter the light, and the light that should have been directly emitted will become "scattered flowers from the sky", resulting in uneven light distribution. During the test, the brightness difference between the edge and center of the lens becomes larger; by setting the baffle 602, when the cover plate 405 is covered on the bottom plate 207, the baffle 602 will be away from the hollow groove 5031. At this time, the light generated by the lamp bead 5032 will be irradiated on the surface of the optical lens. When the cover plate 405 is opened, the baffle 602 will cover the hollow groove 5031 to prevent external dust and impurities from adhering to the surface of the lamp bead 5032.

[0045] It is worth mentioning that the exhaust mechanism 700 includes an air suction pipe 701, the upper end of which is fixedly connected to the cover plate 405. After the cover plate 405 is covered on the upper end of the bottom plate 207, the first steel wire rope 302 will pull the piston 304 to compress the second spring 305. The piston 304 moves toward the end away from the first connecting pipe 208 to generate negative pressure inside the second sliding block 203. Negative pressure is generated inside the second sliding block 203, and air is exhausted between the cover plate 405 and the bottom plate 207 through the first connecting pipe 208, the first sleeve 404, the second connecting pipe 403, the cover plate 405, and the air suction pipe 701. The cover plate 405 is provided with through holes on all sides for connecting the second connecting pipe 403 and the air suction pipe 701, which will not affect the transparency of the center position of the cover plate 405, and the space between the cover plate 405 and the base plate 207 is vacuumed. The sealed vacuum environment provides interference-free, highly controllable, and highly restored conditions for optical lens testing, thereby improving the test accuracy. At this time, the optical lens is between the cover plate 405 and the base plate 207, and the cover plate 405 and the base plate 207 are between the two detectors 205. The two detectors 205 detect the upper and lower surfaces of the optical lens through the cover plate 405 and the base plate 207; by setting the suction pipe 701 between the cover plate 405 and the base plate 207, the space between the cover plate 405 and the base plate 207 is vacuumed after the cover plate 405 is covered on the upper end of the base plate 207, thereby improving the test accuracy.

[0046] A method for testing an optical lens, applicable to the optical lens testing device, specifically comprising the following steps: placing an optical lens on the upper end of a base plate 207; before testing the optical lens, starting a hydraulic cylinder 301 to move toward an end away from a first housing 201; the movement of the hydraulic cylinder 301 toward one end drives a first steel wire rope 302 toward one end; the first steel wire rope 302 moves toward one end and passes through a first rotating pin 303 to reverse direction; the first steel wire rope 302 drives a piston 304 toward an end close to the first housing 201; the piston 304 moves toward the end of the first housing 201; and the piston 304 moves toward the end of the first housing 201. The movement of one end will drive the second sliding block 203 to move toward one end, and the movement of the second sliding block 203 to one end will pull the first spring 206. The movement of the second sliding block 203 to one end will drive the second shell 204 to fit the first shell 201. The second shell 204 fits the first shell 201 to form a closed space, which has the function of dustproof and blocking airflow. The second shell 204 and the first shell 201 are made of glass, which is convenient for observation and light entry. The optical lens is subsequently tested by two detectors 205 set inside the first shell 201.

[0047] When the second sliding block 203 moves toward the end closer to the first shell 201, it will move away from the elastic rope 401. At this time, the elastic rope 401 will pull the second connecting tube 403 downward to move downward. The downward movement of the second connecting tube 403 will compress the third spring 406. The downward movement of the second connecting tube 403 will drive the cover 405 to move downward. The downward movement of the cover 405 will cover the upper end of the bottom plate 207. Both the cover 405 and the bottom plate 207 are made of glass. The cover 405 covering the upper end of the bottom plate 207 will seal the internal optical lens. The sealing of the cover 405 between the bottom plate 207 can prevent the influence of external gas flow on the detection results.

[0048] In the optical lens testing device, it is necessary to center the tested lens and the test light path. This is a key prerequisite for ensuring test accuracy. When the cover plate 405 moves downward, it will drive the second sliding rod 502 to move downward. The second sliding rod 502 moves downward and drives the round rod 504 to move downward. The second sliding rod 502 moves downward and compresses the compression spring inside the second sleeve 501. The round rod 504 moves downward in the guide groove 5011 and drives the second sleeve 501 to rotate. The second sleeve 501 compresses the second sleeve 501 and the bottom plate 207. The spring between the second sleeve 501 and the second sleeve 501 will drive the arc plate 503 to rotate when it rotates. The spring steel material inside the arc plate 503 has a certain elasticity, and the outer surface of the arc plate 503 is made of rubber. The rotation of the arc plate 503 will move the optical lens and move the optical lens to the center position of the bottom plate 207. At the same time, the arc plate 503 has a certain elasticity, and the surface of the arc plate 503 is made of rubber, which makes the arc plate 503 push the optical lens gently, and will not cause damage to the optical lens in the process of moving the optical lens.

[0049] When the cover plate 405 moves downward, it will also drive the third sliding rod 601 to move downward. The downward movement of the third sliding rod 601 will drive the baffle 602 to move downward. The baffle 602 moves downward and away from the hollow groove 5031. At this time, the light generated by the lamp bead 5032 will illuminate the surface of the optical lens. The lamp bead 5032 can provide light, so that the optical lens test lens device can be used normally in a dim or no light environment. When the cover plate 405 moves upward, the baffle 602 will cover the hollow groove 5031 to prevent external dust and impurities. Dust attached to the surface of the lamp bead 5032 will scatter the light, and the light that should have been directly emitted will become "scattered flowers from the sky", resulting in uneven light distribution. During the test, the brightness difference between the edge and center of the lens becomes larger; by setting the baffle 602, when the cover 405 is covered on the bottom plate 207, the baffle 602 will be away from the hollow groove 5031. At this time, the light generated by the lamp bead 5032 will be irradiated on the surface of the optical lens. When the cover 405 is opened, the baffle 602 will cover the hollow groove 5031 to prevent external dust and impurities from adhering to the surface of the lamp bead 5032.

[0050] After the cover plate 405 is covered on the upper end of the bottom plate 207, the first steel wire rope 302 will pull the piston 304 to compress the second spring 305. The piston 304 moves toward the end away from the first connecting pipe 208, which will generate negative pressure inside the second sliding block 203. Negative pressure is generated inside the second sliding block 203, and air is extracted between the cover plate 405 and the bottom plate 207 through the first connecting pipe 208, the first sleeve 404, the second connecting pipe 403, the cover plate 405, and the suction pipe 701. The cover plate 405 is provided with through holes around it for connecting the second connecting pipe 403 and the suction pipe 701, so as not to affect the transparency of the center position of the cover plate 405. , vacuum is drawn between the cover plate 405 and the base plate 207, and the sealed vacuum environment provides interference-free, highly controllable, and highly restored conditions for optical lens testing, thereby improving the test accuracy. At this time, the optical lens is between the cover plate 405 and the base plate 207, and the cover plate 405 and the base plate 207 are between the two detectors 205. The two detectors 205 detect the upper and lower surfaces of the optical lens through the cover plate 405 and the base plate 207. The suction pipe 701 is set between the cover plate 405 and the base plate 207, and after the cover plate 405 is covered on the upper end of the base plate 207, the cover plate 405 and the base plate 207 are vacuumed, thereby improving the test accuracy.

[0051] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above-described embodiments. The above-described embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An optical lens testing device, comprising a base (100), characterized in that: The upper end of the base (100) is slidably connected to a first sliding block (200) and a second sliding block (203); the upper end of the first sliding block (200) is fixedly connected to a first shell (201); the upper end of the second sliding block (203) is fixedly connected to a second shell (204); a bottom plate (207) is fixedly connected inside the second shell (204); a cover plate (405) is provided on the upper end of the bottom plate (207); a fitting mechanism (300) for bringing the first shell (201) and the second shell (204) together is provided on the upper end of the base (100); and the inside of the second shell (204) is fixedly connected to a bottom plate (207). The upper portion is provided with a covering mechanism (400) for covering the cover plate (405) on the upper end of the bottom plate (207); the bottom plate (207) is provided with a toggling mechanism (500) for toggling the optical lens to the center position of the bottom plate (207); the upper end of the bottom plate (207) is slidably connected to an arc plate (503); a lamp bead (5032) is provided inside the arc plate (503); a protection mechanism (600) for protecting the lamp bead (5032) is provided on the surface of the arc plate (503); and the upper end of the bottom plate (207) is provided with an exhaust mechanism (700) for evacuating the space between the cover plate (405) and the bottom plate (207); The toggle mechanism (500) includes a second sleeve (501), the lower end of the second sleeve (501) is elastically connected to the bottom plate (207) via a torsion spring, a guide groove (5011) is provided inside the second sleeve (501), and the second sliding rod (502) is elastically connected inside the second sleeve (501) via a compression spring; The toggle mechanism (500) further comprises a round rod (504), the lower end surface of the second sliding rod (502) is fixedly connected to the round rod (504), the round rod (504) is slidably connected to the guide groove (5011), the surface of the second sleeve (501) is fixedly connected to an arc plate (503), a hollow groove (5031) is provided inside the arc plate (503), and a lamp bead (5032) is fixedly connected inside the hollow groove (5031); The air extraction mechanism (700) comprises an air suction pipe (701), and the upper end of the air suction pipe (701) is fixedly connected to the cover plate (405).

2. The optical lens testing device according to claim 1, characterized in that: The first sliding block (200) is internally slidably connected to a first sliding rod (202), the surface of the first sliding rod (202) is slidably connected to a second sliding block (203), the upper end of the second sliding block (203) is fixedly connected to a second shell (204), an opening (2041) is provided inside the second shell (204), one end of the second sliding block (203) is fixedly connected to a first connecting pipe (208), a detector (205) is provided on the upper and lower ends of the inner surface of the first shell (201), a first spring (206) is sleeved on the outside of the first sliding rod (202), one end of the first spring (206) is fixedly connected to the base (100), and the other end of the first spring (206) is fixedly connected to the second sliding block (203).

3. The optical lens testing device according to claim 2, characterized in that: The laminating mechanism (300) comprises a hydraulic cylinder (301), a non-output end of the hydraulic cylinder (301) being mounted on the upper end of the base (100), an output end of the hydraulic cylinder (301) being fixedly connected to a first steel wire rope (302), and a first rotating pin (303) being laminating to the surface of the first steel wire rope (302).

4. The optical lens testing device according to claim 3, characterized in that: The fitting mechanism (300) further comprises a piston (304), one end of the first steel wire rope (302) is fixedly connected to the piston (304), one end of the piston (304) is fixedly connected to a second spring (305), and one end of the second spring (305) is fixedly connected to the second sliding block (203).

5. The optical lens testing device according to claim 4, characterized in that: The covering mechanism (400) includes an elastic rope (401), one end of the elastic rope (401) is fixedly connected to the base (100), a first sleeve (404) is slidably connected to the surface of the elastic rope (401), a second rotating pin (402) is attached to the surface of the elastic rope (401), both ends of the second rotating pin (402) are rotatably connected to the first sleeve (404), a second connecting tube (403) is slidably connected inside the first sleeve (404), the elastic rope (401) pulls the second connecting tube (403) downward to move downward, the second connecting tube (403) is slidably connected to the opening (2041), a third spring (406) is fixedly connected to the lower end of the second connecting tube (403), the lower end of the first sleeve (404) is fixedly connected to the first connecting tube (208), and a cover plate (405) is fixedly connected to one end of the second connecting tube (403).

6. The optical lens testing device according to claim 5, characterized in that: The protection mechanism (600) includes a third sliding rod (601), the third sliding rod (601) is elastically connected to the arc plate (503) via a compression spring, one end of the third sliding rod (601) is fixedly connected to a baffle (602), and the baffle (602) is in contact with the arc plate (503).

7. A method for testing an optical lens, the method being implemented based on the optical lens testing device according to claim 6, characterized in that: The method comprises the following steps: S1, place the optical lens on the upper end of the bottom plate (207), before testing the optical lens, start the hydraulic cylinder (301) to move toward one end away from the first housing (201), the hydraulic cylinder (301) moving toward one end will drive the first steel wire rope (302) to move toward one end, the first steel wire rope (302) moves toward one end and passes through the reversal of the first rotating pin (303), the first steel wire rope (302) will drive the piston (304) to move toward one end close to the first housing (201), the piston (304) moving toward one end will drive the second sliding block (2 03) moves toward one end, the second sliding block (203) moves toward one end to pull the first spring (206), and the second sliding block (203) moves toward one end to drive the second shell (204) to fit the first shell (201), and the second shell (204) fits the first shell (201) to form a closed space. The second shell (204) and the first shell (201) are made of glass, which is convenient for observation and light entry. Subsequently, the optical lens is tested by two detectors (205) set inside the first shell (201); S2, when the second sliding block (203) moves toward one end, the second sliding block (203) will move away from the elastic rope (401), and at this time the elastic rope (401) will pull the second connecting tube (403) downward to move downward, and the downward movement of the second connecting tube (403) will compress the third spring (406), and the downward movement of the second connecting tube (403) will drive the cover plate (405) to move downward, and the cover plate (405) will cover the upper end of the bottom plate (207) when it moves downward, and both the cover plate (405) and the bottom plate (207) are made of glass; S3, when the cover plate (405) moves downward, the second sliding rod (502) will be driven to move downward, and the second sliding rod (502) will be driven to move downward, and the second sliding rod (502) will be driven to move downward, and the second sliding rod (502) will be driven to move downward to compress the compression spring inside the second sleeve (501), and the round rod (504) will be driven to rotate in the guide groove (5011), and the second sleeve (501) will be driven to compress the spring between the second sleeve (501) and the bottom plate (207), and the rotation of the second sleeve (501) will be driven to rotate the arc plate (503), the spring steel material inside the arc plate (503) has a certain elasticity, and the outer surface of the arc plate (503) is made of rubber material, and the rotation of the arc plate (503) will move the optical lens to the center position of the bottom plate (207); S4, when the cover plate (405) moves downward, the third sliding rod (601) is also driven to move downward. The downward movement of the third sliding rod (601) drives the baffle (602) to move downward. The baffle (602) moves downward away from the hollow groove (5031). At this time, the light generated by the lamp bead (5032) will be irradiated on the surface of the optical lens. When the cover plate (405) moves upward, the baffle (602) will cover the hollow groove (5031) to prevent external dust and impurities from adhering to the surface of the lamp bead (5032); S5, after the cover plate (405) is covered on the upper end of the bottom plate (207), the first steel wire rope (302) will pull the piston (304) to compress the second spring (305), and the piston (304) moves toward the end away from the first connecting tube (208) to generate negative pressure inside the second sliding block (203). The negative pressure generated inside the second sliding block (203) passes through the first connecting tube (208), the first sleeve (404), the second connecting tube (403), the cover plate (405), the second spring (305), the piston (304) and the second spring (305). 05), the suction pipe (701) is used to evacuate air between the cover plate (405) and the bottom plate (207), and through holes are provided around the inside of the cover plate (405) for connecting the second connecting pipe (403) and the suction pipe (701), so as not to affect the transparency of the center position of the cover plate (405), and to evacuate the space between the cover plate (405) and the bottom plate (207). The sealed vacuum environment provides interference-free, highly controllable, and highly reductive conditions for optical lens testing, thereby improving the test accuracy.

Images