Device for detecting thickness of coating layer of optical filter

Abstract

The utility model provides a device for detecting the thickness of a coating layer of an optical filter, which comprises a lens and a base, a support is arranged on the base, a coating thickness gauge is arranged on the support, a transmission mechanism is arranged on the base and movably connected with the base, the transmission mechanism comprises a connecting rod and a frame body, the connecting rod is fixedly mounted on the frame body, and the connecting rod is movably connected with the frame body. A driving plate and a grooved wheel are arranged on the connecting rod, an arc-shaped convex block is arranged at the center of the driving plate, round pins are arranged at the edge of the driving plate, a plurality of grooves corresponding to the round pins are formed in the edge of the grooved wheel at equal intervals, an arc groove attached to the arc-shaped convex block is formed between every two adjacent grooves, a driven piece is arranged on the support, and the lens is installed on the driven piece. One end of the driven part is connected with the grooved wheel, a plurality of lenses are placed on the driven part, the driven part is driven to convey the lenses to the position below the coating thickness gauge on the support through cooperation of the driving plate and the grooved wheel so as to detect the thickness of a coating layer of the lenses, and when the first lens is detected, the driven part can convey the next lens to the position below the coating thickness gauge for continuous detection.

Description

Technical Field

[0001] The utility model relates to the field of thickness detection, in particular to a device for detecting the thickness of an optical filter coating layer. Background Art

[0002] The filter coating layer refers to one or more layers of optical coating located on the surface of the filter. According to the specific wavelength range that the filter needs to filter out or transmit, the appropriate material is selected as the component material of the coating layer. By controlling the thickness and material composition of the coating layer, the reflection and transmittance of light of a specific wavelength can be controlled. For example, the optical coating design can make the filter have high transmittance within a certain wavelength range and high reflectivity at other wavelengths to achieve a specific filtering effect. In order to achieve more complex optical performance, the filter coating layer can be composed of multiple layers of thin film stacking. Each layer of thin film has specific optical properties. By superimposing and adjusting the thickness and refractive index of each layer of thin film, more precise wavelength selectivity and optical effects can be achieved.

[0003] The coating layer of the filter is generally tested by a coating thickness gauge. The coating thickness gauge irradiates X-rays on the sample and measures the thickness of the metal film such as the coating by the intensity of the second X-ray reflected from the sample. When the existing detection device detects the thickness of the filter coating layer, it is necessary to place a filter on a workbench, fix the lens and then test the lens. After the test is completed, the lens is removed and replaced with another lens for testing. Such detection efficiency is low.

[0004] Therefore, it is necessary to provide a new optical filter coating layer thickness detection device to solve the above technical problems. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a device for detecting the thickness of an optical filter coating layer.

[0006] The utility model provides an optical filter coating thickness detection device, comprising a lens and a base, wherein a bracket is arranged on the base, a coating thickness gauge is arranged on the bracket, a transmission mechanism is arranged on the base, the transmission mechanism is movably connected with the base, the transmission mechanism comprises a connecting rod and a frame, the connecting rod is fixedly mounted on the frame, a dial and a groove wheel are arranged on the connecting rod, an arc-shaped convex block is arranged at the center of the dial, a round pin is arranged at the edge of the dial, a plurality of grooves corresponding to the round pins are equidistantly formed on the edge of the groove wheel, an arc groove fitting with the arc-shaped convex block is arranged between two adjacent grooves, a follower is arranged on the bracket, the lens is mounted on the follower, and one end of the follower is connected to the groove wheel.

[0007] Preferably, the driven member includes a first sprocket and a second sprocket, the second sprocket is fixedly mounted on the groove wheel, the first sprocket is fixedly mounted on the top of the frame, and the second sprocket is driven by the first sprocket through a chain.

[0008] Preferably, a conveying member is provided on the frame, and the conveying member includes a first round rod, a second round rod and a conveyor belt. One end of the first round rod is fixedly connected to one side of the top of the frame through a first sprocket, and the other end is fixedly connected to the other side of the top of the frame. Both ends of the second round rod are respectively fixedly connected to both sides of the top of the frame, and the first round rod and the second round rod are connected by a conveyor belt.

[0009] Preferably, a groove for placing lenses is provided on the conveyor belt.

[0010] Preferably, a motor is provided on the frame, and one end of the motor is connected to the dial.

[0011] Compared with the related art, the optical filter coating layer thickness detection device provided by the utility model has the following beneficial effects:

[0012] The utility model provides a device for detecting the thickness of a coating layer of an optical filter. In a specific implementation, a plurality of lenses are placed on a follower, and a dial and a groove wheel cooperate to drive the follower to transport the lenses to the bottom of a coating thickness gauge on a bracket to detect the thickness of the coating layer of the lenses. When the first detection is completed, the follower will transport the next lens to the coating thickness gauge for continuous detection, thereby improving the detection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 A schematic structural diagram of a preferred embodiment of a device for detecting the thickness of an optical filter coating layer provided by the utility model;

[0014] Figure 2 for Figure 1 A schematic diagram of a partial structure of the transmission mechanism shown;

[0015] Figure 3 A schematic diagram of the partial structure of the transmission member and the driven member provided by the utility model;

[0016] Figure 4 A schematic diagram of the partial structure of the dial, groove wheel and follower provided by the utility model;

[0017] Figure 5 This is a schematic diagram of the partial structure of the dial, groove wheel and motor provided by the utility model.

[0018] Numbers in the figure: 1, coating thickness gauge; 2, transmission mechanism; 3, first sprocket; 4, second sprocket; 5, conveyor belt; 6, dial; 7, groove wheel; 8, arc-shaped protrusion; 9, groove; 10, arc groove; 11, round pin. DETAILED DESCRIPTION

[0019] The utility model is further described below in conjunction with the accompanying drawings and implementation modes.

[0020] Please refer to Figure 1-Figure 5 ,in Figure 1 A schematic structural diagram of a preferred embodiment of a device for detecting the thickness of an optical filter coating layer provided by the utility model; Figure 2 for Figure 1 A schematic diagram of a partial structure of the transmission mechanism shown; Figure 3 A schematic diagram of the partial structure of the transmission member and the driven member provided by the utility model; Figure 4 A schematic diagram of the partial structure of the dial, groove wheel and follower provided by the utility model; Figure 5 This is a schematic diagram of the partial structure of the dial, groove wheel and motor provided by the utility model.

[0021] In the specific implementation process, Figure 1-Figure 5 As shown, the utility model provides an optical filter coating thickness detection device including a lens, a base and a transmission mechanism 2, a connecting rod is provided with a bracket, the bracket includes a sliding rod and a cross rod, the sliding rod is provided with a slider that can slide on the sliding rod, the bottom end of the sliding rod is fixedly connected to one end of the connecting rod by a bolt, one end of the cross rod is fixedly connected to the slider by a bolt, and the other end is fixedly connected to a coating thickness gauge 1 by a bolt, a transmission mechanism 2 is provided on the base, the transmission mechanism 2 is movably connected to the base, the transmission mechanism 2 includes a connecting rod and a frame, the connecting rod is fixedly installed on the frame, a dial 6 and a groove wheel 7 are provided on the connecting rod, an arc-shaped protrusion 8 is provided at the center of the dial 6, a round pin 11 is provided at the edge of the dial 6, a plurality of grooves 9 corresponding to the round pins are equidistantly provided on the edge of the groove wheel 7, and a groove 9 corresponding to the round pins is provided between two adjacent grooves 9. When the round pin 11 of the dial 6 does not enter the groove 9 on the groove wheel 7, the arc groove 10 of the groove wheel 7 is fitted with the upper arc groove 10 of the dial 6, and the groove wheel 7 is stationary. When the round pin 11 of the dial 6 begins to enter the groove 9 of the groove wheel 7, the fitting surface of the arc groove 10 of the arc projection 8 is reduced, and the round pin 11 drives the groove wheel 7 to rotate. When the round pin 11 leaves the groove 9 of the groove wheel 7, the other arc groove 10 of the groove wheel 7 is fitted with the upper arc groove 8 of the dial 6 again, and the groove wheel 7 is stationary. In the reciprocating cycle, when the arc projection 8 of the dial 6 is separated from the arc groove 10 of the groove wheel 7, the end point of the arc projection 8 coincides with the midpoint of the arc groove 10, that is, when the two arcs are just locked and disengaged, the overlap amount of the arc groove 10 is half to ensure the stable rotation of the groove wheel 7 and realize intermittent transmission.

[0022] like Figure 4 as well as Figure 5As shown, a follower is provided on the bracket, the lens is mounted on the follower, one end of the follower is connected to the groove wheel 7, the follower includes a transmission member, a first sprocket 3 and a second sprocket 4, the transmission member includes a first round rod, a second round rod and a conveyor belt 5, the second sprocket 4 is fixedly mounted on the groove wheel 7 by welding, the first sprocket 3 is fixedly mounted on the top of the frame, one end of the first sprocket 3 is fixedly connected to the frame through a bearing, and the other end is fixedly connected to one end of the first round rod by welding, one end of the first round rod is fixedly connected to the frame through a bearing, the second sprocket 4 is transmitted to the first sprocket 3 through a chain, both ends of the second round rod are fixedly connected to the frame through bearings, and the first round rod and the second round rod are connected through a conveyor belt 5.

[0023] like Figure 1-Figure 3 As shown, a groove 9 for placing lenses is provided on the conveyor belt 5, and the groove corresponds to the detection position of the coating thickness gauge.

[0024] like Figure 4 As shown, a motor is provided on the frame, and the motor is fixed to the frame by bolts. One end of the motor is connected to the dial 6, and the other end of the motor is movably connected to the dial 6.

[0025] The working principle of the utility model is as follows: a lens is placed in the groove 9 of the conveyor belt 5, and the motor is started. The motor drives the dial 6 to start rotating. When the round pin 11 of the dial 6 does not enter the groove 9 on the groove wheel 7, the arc groove 10 of the groove wheel 7 fits with the upper arc-shaped protrusion 8 of the dial 6, and the groove wheel 7 is stationary. When the round pin 11 of the dial 6 starts to enter the groove 9 of the groove wheel 7, the fitting surface of the arc-shaped protrusion 8 and the arc groove 10 is reduced, and the round pin 11 drives the groove wheel 7 to rotate. When the round pin 11 leaves the groove 9 of the groove wheel 7, another arc groove 10 of the groove wheel 7 fits with the upper arc-shaped protrusion 8 of the dial 6 again, and the groove wheel 7 is stationary. In a reciprocating cycle, the groove wheel 7 drives the second sprocket 4 on the groove wheel 7 to start rotating. The second sprocket 4 is fixedly mounted on the groove wheel 7 by welding, the first sprocket 3 is fixedly mounted on the top of the frame, one end of the first sprocket 3 is fixedly connected to the frame through a bearing, and the other end is fixedly connected to one end of the first round rod by welding, one end of the first round rod is fixedly connected to the frame through a bearing, the second sprocket 4 is transmitted to the first sprocket 3 through a chain, both ends of the second round rod are fixedly connected to the frame through bearings, the first round rod and the second round rod are connected through a conveyor belt 5, the rotation of the first round rod drives the conveyor belt 5 to transmit the lens on the conveyor belt to the detection position of the coating thickness gauge 1 for detection, and after the first detection, the conveyor belt 5 will transmit the next lens to the detection position of the coating thickness gauge 1 for detection.

[0026] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An optical filter coating layer thickness detection device, characterized in that: It comprises a lens and a base, wherein the base is provided with a bracket, the bracket is provided with a coating thickness gauge (1), the base is provided with a transmission mechanism (2), and the transmission mechanism (2) is movably connected to the base; The transmission mechanism (2) comprises a connecting rod and a frame, wherein the connecting rod is fixedly mounted on the frame, and a dial (6) and a groove wheel (7) are provided on the connecting rod, an arc-shaped protrusion (8) is provided at the center of the dial (6), a round pin (11) is provided at the edge of the dial (6), a plurality of grooves (9) corresponding to the round pins are equidistantly provided on the edge of the groove wheel (7), and an arc groove (10) fitting with the arc-shaped protrusion (8) is provided between two adjacent grooves (9), a follower is provided on the frame, and the lens is mounted on the follower, and one end of the follower is connected to the groove wheel (7).

2. The optical filter coating layer thickness detection device according to claim 1, characterized in that: The driven member comprises a transmission member, a first sprocket (3) and a second sprocket (4); the second sprocket (4) is fixedly mounted on a groove wheel (7); the first sprocket (3) is fixedly mounted on the top of a frame; the second sprocket (4) is driven by the first sprocket (3) through a chain; and the transmission member is fixedly connected to the first sprocket (3).

3. The optical filter coating layer thickness detection device according to claim 2, characterized in that: The conveying member comprises a first round rod and a second round rod, one end of the first round rod is fixedly connected to one side of the top end of the frame body via a first sprocket (3), and the other end is fixedly connected to the other side of the top end of the frame body, both ends of the second round rod are respectively fixedly connected to both sides of the top end of the frame body, and the first round rod and the second round rod are connected via a conveyor belt (5).

4. The optical filter coating layer thickness detection device according to claim 3, characterized in that: The conveyor belt (5) is provided with a groove (9) for placing lenses.

5. The optical filter coating layer thickness detection device according to claim 4, characterized in that: The frame is provided with a motor, one end of which is connected to a dial (6).

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