A high-reflectivity coating testing device for optical lenses

Abstract

This invention relates to the field of high-reflectivity coating testing, and more particularly to a high-reflectivity coating testing device for optical lenses. Technical problem: A high-reflectivity coating testing device for optical lenses includes a base, etc.; a placement platform is horizontally mounted on the upper part of the base, and a fixing structure is connected to the top of the base. A lifting rod is vertically slidably connected within the fixing structure, and the height of the lifting rod is fixed by the fixing structure; an incident angle adjustment mechanism is installed at the lower part of the lifting rod. This invention achieves convenient adjustment and stable fixation of the light source height through the cooperation of the base protrusion with the sliding sleeve, the lifting rod, and the clamping bolt; combined with the incident angle adjustment mechanism of the worm gear drive, it can not only accurately control the incident angle of the light source, but its self-locking characteristic also ensures the angle stability during the testing process; at the same time, the combination of the X-axis slide rail and the Y-axis slide rail, along with the moving mechanism composed of the screw, internal threaded column, and hinge rod, can flexibly adjust the position and spacing of the adaptive fixture.

Description

Technical Field

[0001] This invention relates to the field of high reflectivity coating testing, and more particularly to a high reflectivity coating testing device for optical lenses. Background Technology

[0002] In the research and development and production of high-reflectivity films, it is necessary not only to measure their reflectivity at a specific angle (such as vertical incidence), but also to test their optical properties at different incident angles in order to evaluate the performance stability and applicability of the film. However, existing testing equipment has many inconveniences when conducting multi-angle tests.

[0003] Patent CN220690408U discloses a high-reflectivity coating testing device for optical lenses. This device includes a base, a testing platform mounted on the base, a lens clamp, and a high-reflectivity coating tester. The lens clamp is symmetrically arranged about the left and right sides of the device. Each clamp includes a fixed rod and a threaded rod mounted on the base, with the fixed rod slidably connected to two sets of clamping sliders. By incorporating the fixed rod, threaded rod, clamping sliders, slider grooves, and upper and lower clamping sliders, this invention can clamp both the left and right sides of the lens, as well as its upper and lower edges, thus adapting to the testing of more types of lenses. While this method can adapt to different types of lenses, the testing angle of the test light source cannot be adjusted, resulting in significant limitations in high-reflectivity coating testing.

[0004] Therefore, there is an urgent need to develop a high-reflectivity coating testing device for optical lenses that can change the angle to perform high-reflectivity coating testing. Summary of the Invention

[0005] In order to overcome the shortcomings of the prior art, the present invention provides a high-reflectivity coating testing device for optical lenses that can change the angle to perform high-reflectivity coating testing.

[0006] The technical solution is as follows: A high-reflectivity coating testing device for optical lenses includes a base and a placement platform. The placement platform is horizontally mounted on the upper part of the base, and a fixed structure is connected to the top of the base. A lifting rod is vertically slidably connected within the fixed structure, and the height of the lifting rod is fixed by the fixed structure. An incident angle adjustment mechanism is installed at the lower part of the lifting rod, and a light source is detachably fixed to the right end of the incident angle adjustment mechanism. A moving mechanism is installed on the top of the placement platform, and an adaptive clamp is slidably mounted on the moving mechanism. The adaptive clamp cooperates with the moving mechanism to fix test lenses of different sizes. An image acquisition mechanism for collecting transmitted light is installed below the placement platform.

[0007] Optionally, the fixing structure includes a sliding sleeve installed at the top of the base, a lifting rod vertically passing through the sliding sleeve and slidably connected thereto, an internal threaded sleeve being horizontally provided on the side of the sliding sleeve, and a clamping bolt being threadedly connected inside the internal threaded sleeve.

[0008] Optionally, the incident angle adjustment mechanism includes a worm gear rotatably mounted on the lower right side of the lifting rod, a drive shaft slidably connected to the worm gear by a key, and a worm gear meshing with the worm gear rotatably mounted on the right side of the lifting rod above the worm gear.

[0009] Optionally, the moving mechanism includes X-axis slide rails symmetrically mounted on the top of the placement platform, and Y-axis slide rails slidably connected between the left and right parts of the X-axis slide rails on both sides. A screw is symmetrically and vertically rotatably mounted at the bottom center of the placement platform below the Y-axis slide rails. An internally threaded post is threadedly connected to the screw. A connecting block is rotatably connected to the top of the internally threaded post. The connecting block is vertically slidably connected to the screw. A hinge rod is rotatably connected between the connecting block and the end of the Y-axis slide rail above it.

[0010] Optionally, the adaptive clamp includes a first sliding block slidably disposed on the left Y-axis slide rail. The right side of the first sliding block has a stepped surface that is convex at the bottom and concave at the top. A second sliding block is slidably connected to the right Y-axis slide rail. A movable clamping block is slidably connected to the top of the second sliding block. A compression spring is connected between the movable clamping block and the second sliding block. Clamping wheels are horizontally rotatably mounted at both ends of the left front and rear of the movable clamping block and at both ends of the right front and rear of the first sliding block. A pull rod extends to the left and right of the right side of the movable clamping block, and the pull rod passes through the second sliding block to the right.

[0011] Optionally, the image acquisition mechanism includes slide rods symmetrically installed on the bottom of the placement platform, the slide rods extending forward and backward, an image acquisition unit slidably connected between the slide rods, the image acquisition unit being below the adaptive fixture, and an opening design on the placement platform above the movement trajectory of the image acquisition unit.

[0012] Optionally, it also includes an angle display mechanism fixedly installed on the upper part of the lifting rod. The angle display mechanism includes a double-layer arc-shaped plate fixedly installed on the right side of the upper part of the lifting rod. An arc-shaped groove is concentrically formed on the right side of the double-layer arc-shaped plate. A telescopic rod is slidably connected in the arc-shaped groove. The left end of the telescopic rod is slidably connected to the left part of the double-layer arc-shaped plate. The right end of the telescopic rod is detachably fixed to the upper part of the light source. An angle scale is provided on the right side of the double-layer arc-shaped plate. A pointer is provided on the upper surface of the telescopic rod. The end of the pointer points to the angle scale.

[0013] Optionally, it also includes a horizontal position adjustment mechanism installed on the left side of the drive shaft. The horizontal position adjustment mechanism includes an adjustment bolt that is concentrically rotatably installed on the left end of the drive shaft. A concave plate is installed on the lifting rod at the adjustment bolt. A nut is fixed in the middle of the concave plate, and the adjustment bolt is screwed into the nut.

[0014] Optionally, it also includes a synchronization adjustment mechanism mounted on the drive shaft. The synchronization adjustment mechanism includes a rocker arm with its top fixed to the drive shaft. The rocker arm extends downward and has a vertical slot at its lower part. A first retaining pin is fixed to the left side of the first sliding block, and a second retaining pin is provided on the left side of the image acquisition unit. Both the first retaining pin and the second retaining pin pass through the slot to the left.

[0015] The beneficial effects of this invention are as follows: 1. This invention achieves convenient adjustment and stable fixation of the light source height through the cooperation of the base protrusion with the sliding sleeve, lifting rod and clamping bolt; combined with the worm gear transmission incident angle adjustment mechanism, it can not only accurately control the incident angle of the light source, but its self-locking characteristic also ensures the angle stability during the test; at the same time, the combination of the X-axis slide rail and the Y-axis slide rail, together with the moving mechanism composed of the screw, internal thread column and hinge rod, can flexibly adjust the position and spacing of the adaptive fixture, thereby stably clamping test lenses of different sizes, significantly improving the versatility of the equipment; 2. By adding a synchronous adjustment mechanism, the linkage structure of the swing arm, the slotted hole, the first locking shaft and the second locking shaft is used to realize the synchronous movement of the light source, the adaptive fixture and the image acquisition unit, ensuring that the three are always on the same straight line. This effectively avoids optical path deviation caused by positional offset, ensures the accurate alignment of the test spot and the efficient acquisition of transmitted light, and improves the accuracy and efficiency of the test. 3. The adaptive fixture adopts a combination structure of a first sliding block, a second sliding block, a moving clamping block, and a clamping spring. The lens can be quickly released or clamped by pulling the lever, making operation simple. At the same time, the design of the clamping wheel not only provides stable circumferential support, but also allows the lens to rotate during the test, which is convenient for adjusting the test position on the lens surface. Combined with the horizontal position adjustment mechanism for lateral fine adjustment of the light source, it can achieve precise illumination of any position on the lens, meeting the needs of comprehensive testing. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0017] Figure 2 This is a three-dimensional structural diagram of the components placed on the platform of the present invention.

[0018] Figure 3 For the present invention Figure 2 The main view.

[0019] Figure 4For the present invention Figure 3 A sectional view.

[0020] Figure 5 For the present invention Figure 4 A magnified view of A in the middle.

[0021] Figure 6 This is a three-dimensional structural diagram of the angle display mechanism of the present invention.

[0022] Figure 7 This is a diagram showing the installation positions of the moving mechanism, adaptive clamp, image acquisition mechanism, and synchronization adjustment mechanism of the present invention.

[0023] Figure 8 For the present invention Figure 7 A schematic diagram of the three-dimensional structure after removing the placement platform.

[0024] Figure 9 This is a three-dimensional structural diagram of the moving mechanism of the present invention.

[0025] Figure 10 This is a three-dimensional structural diagram of the adaptive fixture of the present invention.

[0026] Figure 11 This is a three-dimensional structural diagram of the image acquisition mechanism and the synchronization adjustment mechanism of the present invention.

[0027] In the attached diagram, the markings are as follows: 1: Base; 2: Placement platform; 3: Fixing structure; 31: Sliding sleeve; 32: Internal threaded sleeve; 33: Clamping bolt; 4: Lifting rod; 5: Incident angle adjustment mechanism; 51: Worm gear; 52: Drive shaft; 53: Key; 54: Worm; 6: Light source; 7: Angle display mechanism; 71: Double-layer arc plate; 72: Arc groove; 73: Telescopic rod; 74: Angle scale; 75: Pointer; 8: Horizontal position adjustment mechanism; 81: Concave plate; 82: Nut; 83: Adjusting bolt; 9: Moving mechanism. 91: X-axis slide rail, 92: Y-axis slide rail, 93: hinge rod, 94: screw rod, 95: internal threaded column, 96: connecting block, 10: adaptive clamp, 101: first sliding block, 102: second sliding block, 103: moving clamping block, 104: compression spring, 105: clamping wheel, 106: pull rod, 11: image acquisition mechanism, 111: slide rod, 112: image acquisition unit, 12: synchronous adjustment mechanism, 121: swing rod, 122: slotted hole, 123: first retaining shaft, 124: second retaining shaft. Detailed Implementation

[0028] The following description is only a preferred embodiment of the present invention and does not limit the scope of protection of the present invention.

[0029] Example: A high-reflection coating testing device for optical lenses, such as Figures 1-5 , Figure 7 and Figure 10 As shown, the device includes a base 1 and a placement platform 2. The left side of the base 1 protrudes upwards, and the placement platform 2 is horizontally fixedly installed on the upper part of the base 1. The placement platform 2 provides space for testing high-reflectivity films. A fixing structure 3 is connected to the top of the protruding part of the base 1. A lifting rod 4 is vertically slidably connected inside the fixing structure 3. The height of the lifting rod 4 is fixed by the fixing structure 3, and it can also be released by the fixing structure 3. An incident angle adjustment mechanism 5 is installed at the lower part of the lifting rod 4. The incident angle adjustment mechanism 5 has a self-locking function, which allows the incident angle to be fixed. A light source 6 is detachably fixed to the right end of the incident angle adjustment mechanism 5. The light outlet of the light source 6 faces downwards. A moving mechanism 9 is installed on the top of the placement platform 2. An adaptive clamp 10 is slidably set on the moving mechanism 9. The adaptive clamp 10 is initially positioned below the light source 6. The adaptive clamp 10 cooperates with the moving mechanism 9 to fix test lenses of different sizes, thereby improving the versatility of the equipment. An image acquisition mechanism 11 for collecting transmitted light is installed below the placement platform 2.

[0030] First, the height of the lifting rod 4 is adjusted and locked using the fixed structure 3 to accommodate testing requirements of different sizes. Then, the optical lens to be tested, after having its high-reflectivity coating applied, is placed in the adaptive fixture 10 on the moving mechanism 9, and the fixture position is adjusted so that the lens is precisely positioned directly below the light source 6. The adaptive fixture 10 automatically adjusts the clamping size according to the lens size to achieve stable fixation. The light source 6 is installed at the right end of the incident angle adjustment mechanism 5, which can precisely adjust the incident angle of the light source 6 and has a self-locking function to ensure angle stability during testing. After the light source 6 is turned on, light shines downwards onto the lens surface. The reflected light is received or observed from above, while the transmitted light passes through the lens and is captured by the image acquisition mechanism 11 below. Through the coordinated work of the moving mechanism 9 and the adaptive fixture 10, multi-position testing of lenses of different sizes can be performed. Combined with the height adjustment of the lifting rod 4 and the incident angle adjustment, comprehensive testing of the high-reflectivity coating performance at multiple angles and distances can be achieved, thereby completing the accurate evaluation of key parameters such as the reflectivity and transmittance of the high-reflectivity coating of the optical lens.

[0031] like Figures 2-5 As shown, the fixed structure 3 includes a sliding sleeve 31, an internal threaded sleeve 32, and a clamping bolt 33. The top of the protruding part of the base 1 is fixedly connected to the sliding sleeve 31. The lifting rod 4 passes vertically through the sliding sleeve 31 and is slidably connected to it. The sliding sleeve 31 is horizontally provided with an internal threaded sleeve 32. The internal threaded sleeve 32 is connected to the internal space of the sliding sleeve 31. The clamping bolt 33 is connected to the internal threaded sleeve 32 by threads. A handwheel or a booster block can be provided at the end of the clamping bolt 33 to facilitate the rotation of the clamping bolt 33. The lifting rod 4 can be fixed or loosened by turning the clamping bolt 33.

[0032] When it is necessary to adjust the height of the lifting rod 4, first rotate the clamping bolt 33 in the reverse direction so that its end is disengaged from the surface of the lifting rod 4, thereby releasing the locking state of the lifting rod 4. Then, manually push the lifting rod 4 along the axial direction of the sliding sleeve 31 to move it up and down. After the lifting rod 4 is adjusted to the required height position, rotate the clamping bolt 33 in the forward direction. Use the thread transmission to push the clamping bolt 33 inward and press it against the side wall of the lifting rod 4. By increasing the friction between the inner wall of the sliding sleeve 31 and the lifting rod 4, a stable lock is achieved, thereby completing the precise adjustment and fixation of the height of the lifting rod 4.

[0033] like Figures 2-5 As shown, the incident angle adjustment mechanism 5 includes a worm gear 51, a drive shaft 52, a key 53, and a worm 54. The worm gear 51 is rotatably mounted on the lower right side of the lifting rod 4. The drive shaft 52 is slidably connected to the worm gear 51 by the key 53. The light source 6 is mounted on the right end of the drive shaft 52. The axis of the drive shaft 52 is on the same straight line as the axis of the worm gear 51. The worm 54, which meshes with the worm gear 51, is rotatably mounted on the right side of the lifting rod 4 above the worm gear 51. A handwheel is installed at the end of the worm 54 to facilitate rotation of the worm 54.

[0034] When the incident angle of the light source 6 needs to be adjusted, the operator turns the handwheel, which drives the worm gear 54 to rotate on the lifting rod 4. The worm gear 54 and the worm wheel 51 mesh, driving the worm wheel 51 to rotate around its own axis. Since the transmission shaft 52 is slidably connected to the worm wheel 51 via the key 53 and their axes are collinear, the rotational motion of the worm wheel 51 is synchronously transmitted to the transmission shaft 52, thereby causing the light source 6, mounted on the right end of the transmission shaft 52, to deflect at an angle. Based on the unique self-locking characteristic of the worm gear mechanism, after the worm gear 54 stops rotating, the worm wheel 51, the transmission shaft 52 connected to it, and the light source 6 can stably maintain the set angle without shifting due to gravity or external forces. This achieves precise adjustment and reliable fixation of the incident angle of the light source 6, meeting the requirements of multi-angle testing of high-reflectivity films.

[0035] like Figures 7-9As shown, the moving mechanism 9 includes an X-axis slide rail 91, a Y-axis slide rail 92, a hinge rod 93, a screw 94, an internally threaded post 95, and a connecting block 96. The X-axis slide rails 91 are symmetrically arranged front and back on the top of the placement platform 2, extending horizontally to the left and right. Y-axis slide rails 92 are slidably connected between the left and right sides of the X-axis slide rails 91, extending front and back. A screw 94 is symmetrically and vertically rotatably arranged at the bottom center of the placement platform 2 below the Y-axis slide rails 92. The screw 94 is connected via... The threaded connection has an internal threaded post 95, and a connecting block 96 is rotatably connected to the top of the internal threaded post 95. The connecting block 96 is vertically slidably connected to the screw 94. When the internal threaded post 95 is rotated, the connecting block 96 will not rotate with it, but will move vertically with the internal threaded post 95. The connecting block 96 and the end of the Y-axis slide rail 92 above it are both rotatably connected with hinge rods 93. When the connecting block 96 moves upward, the Y-axis slide rails 92 move away from each other. When the connecting block 96 moves downward, the Y-axis slide rails 92 close together.

[0036] When the spacing of the Y-axis slide rail 92 needs to be adjusted to accommodate lenses of different sizes, the internal threaded column 95 is rotated. Since the connecting block 96 is rotatably connected to the top of the internal threaded column 95 and vertically slidably connected to the screw 94, the rotational motion of the internal threaded column 95 is converted into the vertical linear movement of the connecting block 96. When the connecting block 96 moves upward, the hinge rod 93 pushes the Y-axis slide rails 92 on both sides away from each other. When the connecting block 96 moves downward, the hinge rod 93 pulls the Y-axis slide rails 92 on both sides closer together, thereby achieving synchronous adjustment of the spacing of the Y-axis slide rails 92. The Y-axis slide rail 92 slides on the X-axis slide rail 91 and can move independently along the X-axis direction. Combined with the adjustment of the spacing of the Y-axis slide rail 92, the adaptive fixture 10 can flexibly adjust its position and adaptation range on the placement platform 2, thereby firmly clamping test lenses of different sizes. With the extension direction of the X-axis slide rail 91, it ensures that the lens can be accurately moved to the test area directly below the light source 6.

[0037] like Figure 8 and Figure 10As shown, the adaptive clamp 10 includes a first sliding block 101, a second sliding block 102, a movable clamping block 103, a compression spring 104, a clamping wheel 105, and a pull rod 106. The first sliding block 101 is slidably mounted on the left Y-axis slide rail 92. The right side of the first sliding block 101 has a stepped surface that is convex at the bottom and concave at the top. The second sliding block 102 is slidably connected to the right Y-axis slide rail 92. The movable clamping block 103 is slidably connected to the top of the second sliding block 102. The opposing surfaces of the movable clamping block 103 and the first sliding block 101 are both arc-shaped. The left side surfaces of the movable clamping block 103 and the second sliding block 102 also form a convex-concave-top shape. The stepped surface facilitates the placement of the test lens. A compression spring 104 connects the movable clamping block 103 and the second sliding block 102. The front and rear ends of the left side of the movable clamping block 103 and the front and rear ends of the right side of the first sliding block 101 are horizontally rotatably mounted with clamping wheels 105. During the clamping process, the inner end face of the clamping wheel 105 contacts the circumferential surface of the lens, allowing the lens to rotate and change position during the test. A pull rod 106 extends to the left and right of the right side of the movable clamping block 103. The pull rod 106 extends to the right through the second sliding block 102. By pulling the movable clamping block 103 to the right through the pull rod 106, the test lens can be released.

[0038] When it is necessary to clamp the test lens, first pull the lever 106 to move the movable clamping block 103 to the right, compress the clamping spring 104, and increase the distance between the movable clamping block 103 and the first sliding block 101. Place the lens to be tested between the stepped surface of the first sliding block 101 and the stepped surface of the second sliding block 102. Then release the lever 106. Under the elastic restoring force of the clamping spring 104, the movable clamping block 103 moves to the left to reset until the inner end faces of the clamping wheels 105 on both sides are tightly against the circumferential sidewall of the lens. The convex and concave stepped surface supports the bottom of the lens and restricts its vertical displacement. At the same time, the rolling contact between the clamping wheels 105 and the sidewall of the lens achieves a stable clamping. When it is necessary to adjust the test position of the lens, the clamping wheels 105 can rotate with the lens to facilitate the adjustment of the lens angle. After the test is completed, pull the lever 106 again to move the movable clamping block 103 to the right to release the lens, realizing the quick clamping and unclamping of the lens.

[0039] like Figure 8 and Figure 11 As shown, the image acquisition mechanism 11 includes a slide bar 111 and an image acquisition unit 112. The slide bars 111 extending forward and backward are symmetrically installed on the bottom of the placement platform 2. The image acquisition unit 112 is slidably connected between the slide bars 111. The image acquisition unit 112 is located below the adaptive fixture 10. The placement platform 2 above the moving trajectory of the image acquisition unit 112 has an opening design so that the test light can shine down.

[0040] When the test light emitted by the light source 6 passes through the lens under test, the transmitted light is projected downward through the opening on the placement platform 2. At this time, the position of the image acquisition unit 112 is adjusted by sliding the slider 111, and the transmitted light spot is received. The image acquisition unit 112 uses a high-resolution industrial camera and a high-sensitivity photosensitive sensor to capture the light intensity distribution, light spot shape and uniformity parameters of the transmitted light in real time. The built-in image processing module converts the light signal into a digital image signal, and calculates the transmittance, reflection loss and film defect information by combining the calibration data, thereby realizing the quantitative analysis and visual detection of the optical performance of the high-reflection film.

[0041] like Figure 6 As shown, it also includes an angle display mechanism 7 fixedly installed on the upper part of the lifting rod 4. The angle display mechanism 7 includes a double-layer arc plate 71, a telescopic rod 73, and a pointer 75. The double-layer arc plate 71 is fixedly installed on the upper right side of the lifting rod 4. An arc groove 72 is concentrically opened on the right side of the double-layer arc plate 71. The telescopic rod 73 is slidably connected in the arc groove 72. The telescopic rod 73 can slide along the arc groove 72. The left end of the telescopic rod 73 is slidably connected to the left side of the double-layer arc plate 71 to increase the stability of the telescopic rod 73. The right end of the telescopic rod 73 is detachably fixed to the upper part of the light source 6. An angle scale 74 is provided on the right side of the double-layer arc plate 71. A pointer 75 is provided on the upper surface of the telescopic rod 73. The end of the pointer 75 points to the angle scale 74. The incident angle of the light source 6 can be clearly understood through the angle scale 74 pointed to by the pointer 75.

[0042] When the worm gear 54 drives the worm wheel 51 to rotate to adjust the incident angle of the light source 6, the upper part of the light source 6 drives the telescopic rod 73 to slide synchronously along the arc groove 72 of the double-layer arc plate 71. The sliding connection structure between the left end of the telescopic rod 73 and the double-layer arc plate 71 ensures the stability of its movement trajectory and avoids shaking or deviation. At this time, the pointer 75 fixed on the upper surface of the telescopic rod 73 will move together with the telescopic rod 73. Its end always points to the angle scale 74 set on the right side of the double-layer arc plate 71. The operator can directly read the current incident angle of the light source 6 accurately through the scale value indicated by the pointer 75, realize real-time visual monitoring and precise positioning of angle adjustment, and ensure the accuracy and repeatability of the test angle.

[0043] like Figure 5 As shown, it also includes a horizontal position adjustment mechanism 8 installed on the left side of the drive shaft 52. The horizontal position adjustment mechanism 8 includes a concave plate 81, a nut 82 and an adjusting bolt 83. The adjusting bolt 83 is concentrically rotatably installed on the left end of the drive shaft 52. The concave plate 81 is installed on the lifting rod 4 at the adjusting bolt 83. The nut 82 is fixed in the middle of the concave plate 81. The adjusting bolt 83 is screwed into the nut 82. By rotating the adjusting bolt 83, the drive shaft 52 is driven to move left and right, thereby adjusting the left and right position of the light source 6.

[0044] When the horizontal position of the light source 6 needs to be adjusted to illuminate any position on the lens, first rotate the adjusting bolt 83. Using the guiding and limiting effect of the nut 82, the adjusting bolt 83 is driven to move left and right along the axis, thereby driving the transmission shaft 52 and the light source 6 to move laterally, thus precisely adjusting the illumination position of the light spot on the lens surface. With the rolling contact structure between the clamping wheel 105 and the circumferential sidewall of the lens, the lens can rotate relative to the clamping wheel 105 under the action of external force, changing its circumferential angle, thereby adjusting the position of the test point on the lens surface. Through the lateral positioning of the light source 6 by the horizontal position adjustment mechanism 8 and the coordinated operation of the lens rotation angle, the light spot can be accurately aligned with any test area on the lens surface, realizing comprehensive and blind-angle illumination and performance testing of different positions on the lens.

[0045] like Figure 11 As shown, it also includes a synchronous adjustment mechanism 12 mounted on the drive shaft 52. The synchronous adjustment mechanism 12 includes a swing arm 121, a first retaining shaft 123 and a second retaining shaft 124. The top end of the swing arm 121 is fixed to the drive shaft 52. The swing arm 121 extends downward and has a vertical slot 122 at its lower part. The first retaining shaft 123 is fixed to the left side of the first sliding block 101. The second retaining shaft 124 is provided on the left side of the image acquisition unit 112. Both the first retaining shaft 123 and the second retaining shaft 124 pass through the slot 122 to the left. Through the swing arm 121, the adaptive clamp 10 and the image acquisition unit 112 can be moved synchronously.

[0046] When the swing arm 121 rotates synchronously with the transmission shaft 52, the slot 122 at its lower part drives the first locking shaft 123 and the second locking shaft 124 to move synchronously, thereby driving the adaptive fixture 10 and the image acquisition unit 112 to move synchronously along the Y-axis slide rail 92 and the slide rod 111. This synchronous adjustment mechanism 12 ensures that the light source 6, the lens under test and the image acquisition unit 112 are always on the same straight line, realizing the linkage adjustment of the positions of the three, ensuring the precise alignment of the test optical path and the efficient acquisition of transmitted light, and improving the test efficiency and accuracy.

[0047] Although this disclosure has been shown and described with reference to specific exemplary embodiments thereof, those skilled in the art will understand that various changes in form and detail may be made to this disclosure without departing from the spirit and scope of the disclosure as defined by the appended claims and their equivalents. Therefore, the scope of this disclosure should not be limited to the above embodiments, but should be defined not only by the appended claims, but also by their equivalents.

Claims

1. A testing device for high-reflectivity coatings on optical lenses, characterized in that, The device includes a base (1) and a placement platform (2). The placement platform (2) is horizontally mounted on the upper part of the base (1). A fixed structure (3) is connected to the top of the base (1). A lifting rod (4) is vertically slidably connected inside the fixed structure (3). The height of the lifting rod (4) is fixed by the fixed structure (3). An incident angle adjustment mechanism (5) is installed at the lower part of the lifting rod (4). A light source (6) is detachably fixed to the right end of the incident angle adjustment mechanism (5). A moving mechanism (9) is installed on the top of the placement platform (2). An adaptive clamp (10) is slidably mounted on the moving mechanism (9). The adaptive clamp (10) cooperates with the moving mechanism (9) to fix test lenses of different sizes. An image acquisition mechanism (11) for collecting transmitted light is installed below the placement platform (2).

2. The high-reflectivity coating testing device for optical lenses according to claim 1, characterized in that, The fixed structure (3) includes a sliding sleeve (31) installed on the top of the base (1), a lifting rod (4) vertically passing through the sliding sleeve (31) and slidingly connected thereto, and an internal threaded sleeve (32) horizontally provided on the side of the sliding sleeve (31), and a clamping bolt (33) is threadedly connected inside the internal threaded sleeve (32).

3. The high-reflectivity coating testing device for optical lenses according to claim 1, characterized in that, The incident angle adjustment mechanism (5) includes a worm gear (51) rotatably mounted on the lower right side of the lifting rod (4). A transmission shaft (52) is slidably connected to the worm gear (51) by a key (53). A worm (54) meshing with the worm gear (51) is rotatably mounted on the right side of the lifting rod (4) above the worm gear (51).

4. The high-reflectivity coating testing device for optical lenses according to claim 1, characterized in that, The moving mechanism (9) includes X-axis slide rails (91) symmetrically installed on the top of the placement platform (2). Y-axis slide rails (92) are slidably connected between the left and right sides of the X-axis slide rails (91). A screw (94) is symmetrically and vertically rotatably installed at the bottom center of the placement platform (2) below the Y-axis slide rail (92). An internal threaded column (95) is threadedly connected to the screw (94). A connecting block (96) is rotatably connected to the top of the internal threaded column (95). The connecting block (96) is vertically slidably connected to the screw (94). A hinge rod (93) is rotatably connected between the connecting block (96) and the end of the Y-axis slide rail (92) above it.

5. The high-reflectivity coating testing device for optical lenses according to claim 4, characterized in that, The adaptive clamp (10) includes a first sliding block (101) slidably disposed on the left Y-axis slide rail (92). The right side of the first sliding block (101) has a stepped surface with a convex lower surface and a concave upper surface. A second sliding block (102) is slidably connected to the right Y-axis slide rail (92). A movable clamping block (103) is slidably connected to the top of the second sliding block (102) to the left and right. A compression spring (104) is connected between the movable clamping block (103) and the second sliding block (102). The front and rear ends of the left side of the movable clamping block (103) and the front and rear ends of the right side of the first sliding block (101) are both horizontally rotatably mounted with clamping wheels (105). A pull rod (106) is provided extending to the left and right on the right side of the movable clamping block (103). The pull rod (106) extends to the right through the second sliding block (102).

6. The high-reflectivity coating testing device for optical lenses according to claim 3, characterized in that, The image acquisition mechanism (11) includes slide rods (111) symmetrically installed on the bottom of the placement platform (2). The slide rods (111) extend forward and backward. An image acquisition unit (112) is slidably connected between the slide rods (111). The image acquisition unit (112) is located below the adaptive fixture (10). The placement platform (2) above the movement trajectory of the image acquisition unit (112) has an opening design.

7. The high-reflectivity coating testing device for optical lenses according to claim 1, characterized in that, It also includes an angle display mechanism (7) fixedly installed on the upper part of the lifting rod (4). The angle display mechanism (7) includes a double-layer arc plate (71) fixedly installed on the upper right side of the lifting rod (4). The right side of the double-layer arc plate (71) is concentrically provided with an arc groove (72). A telescopic rod (73) is slidably connected in the arc groove (72). The left end of the telescopic rod (73) is slidably connected to the left side of the double-layer arc plate (71). The right end of the telescopic rod (73) is detachably fixed to the upper part of the light source (6). An angle scale (74) is provided on the right side of the double-layer arc plate (71). A pointer (75) is provided on the upper surface of the telescopic rod (73). The end of the pointer (75) points to the angle scale (74).

8. The high-reflectivity coating testing device for optical lenses according to claim 3, characterized in that, It also includes a horizontal position adjustment mechanism (8) installed on the left side of the drive shaft (52). The horizontal position adjustment mechanism (8) includes an adjustment bolt (83) that is concentrically rotatably installed on the left end of the drive shaft (52). A concave plate (81) is installed on the lifting rod (4) at the adjustment bolt (83). A nut (82) is fixed in the middle of the concave plate (81). The adjustment bolt (83) is screwed into the nut (82).

9. The high-reflectivity coating testing device for optical lenses according to claim 6, characterized in that, It also includes a synchronous adjustment mechanism (12) installed on the drive shaft (52). The synchronous adjustment mechanism (12) includes a rocker arm (121) with its top fixed to the drive shaft (52). The rocker arm (121) extends downward and has a vertical slot (122) at its lower part. A first locking shaft (123) is fixed to the left side of the first sliding block (101), and a second locking shaft (124) is provided on the left side of the image acquisition unit (112). Both the first locking shaft (123) and the second locking shaft (124) pass through the slot (122) to the left.

Images