Optical filter testing device

Abstract

The utility model discloses an optical filter testing device, which belongs to the technical field of optical filter testing, and comprises a base, an optical measuring instrument and a light source are respectively arranged at the tops of two ends of the base, a stepping motor is arranged at the top of the side, close to the middle part, of the base, a supporting rod is arranged at the shaft end of the stepping motor, and the supporting rod is connected with the optical measuring instrument. The two ends of the supporting rod are symmetrically and fixedly connected with first light shield shells, one sides of the first light shield shells are rotationally connected with second light shield shells, optical filters are installed in the first light shield shells and the second light shield shells, and light holes penetrate through the middles of the first light shield shells and the second light shield shells. The ends, away from the rotating position, of the first light shield shell and the second light shield shell are connected through a quick disassembly and assembly mechanism. According to the optical filter testing device, the optical filter can be replaced, and meanwhile, the testing device can continue to work to detect the optical filter, so that the testing efficiency of the testing device on the optical filter is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of optical filter testing, in particular to an optical filter testing device. Background Art

[0002] Current filter testing devices, such as the one proposed in publication number CN220568380U, facilitate quick and accurate installation of filters by setting a fixed light source, filter and optical measuring instrument fixing device. During the measurement process, it is less likely for components to shift or shake, thereby improving measurement accuracy.

[0003] When using the existing filter testing device, although it is convenient to install the filter quickly and accurately, and the components are not prone to deviation and shaking during the measurement process, thereby improving the measurement accuracy, it is found in use that after the filter detection is completed and the filter needs to be replaced, it is necessary to open the filter limit structure first, and only after the filter is replaced can the next filter be detected, which makes the detection efficiency of the filter testing device low and inconvenient to use. Utility Model Content

[0004] The purpose of the utility model is to provide a filter testing device, which achieves the purpose of enabling the testing device to continue working to detect the filter while the filter is being replaced, thereby effectively improving the testing efficiency of the filter by the testing device.

[0005] To achieve the above object, the utility model provides the following technical solution: a filter testing device, comprising a base, an optical measuring instrument and a light source are respectively installed on the top of both ends of the base, and a stepping motor is installed on the top of the side near the middle of the base, wherein:

[0006] A support rod is installed at the shaft end of the stepper motor, and the two ends of the support rod are symmetrically fixedly connected to the first light shield shell, and one side of the first light shield shell is rotatably connected to the second light shield shell;

[0007] Filters are installed in the first light shield shell and the second light shield shell. Light-transmitting holes are penetrated in the middle of the first light shield shell and the second light shield shell. The first light shield shell and the second light shield shell are connected at one end away from the rotating part through a quick disassembly mechanism.

[0008] Preferably, spring grooves are symmetrically provided at four corners of one side of the first sunshade shell close to the second sunshade shell, a spring is installed in the spring groove, a push rod is installed on the open side of the spring groove, and one end of the push rod outside the spring groove is fixedly connected to a pressure plate.

[0009] Preferably, the spring slot and the push rod are both T-shaped, and the push rod is elastically connected to the first sunshade housing via a spring.

[0010] Preferably, the quick disassembly and assembly mechanism includes a first bracket, an end of the first shading hood shell away from the rotating part is fixedly connected to the first bracket, the end of the second shading hood shell corresponding to the first bracket is fixedly connected to the second bracket, a U-shaped frame is sleeved on the outer sides of the first bracket and the second bracket, a sliding groove is provided on the outer side of the first bracket, a sliding block is fixedly connected to the side of the U-shaped frame corresponding to the sliding groove, a card slot is provided on the outer side of the second bracket, and a card block is fixedly connected to the inner side of the U-shaped frame corresponding to the card slot.

[0011] Preferably, the cross section of the clamping block is an arc-shaped metal spring sheet, and the outer dimension of the clamping block is consistent with the inner dimension of the clamping slot.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] 1. In the utility model, the optical filter is installed in the first light shielding cover shell and the second light shielding cover shell. The filter limiting structure formed by the first light shielding cover shell and the second light shielding cover shell is arranged at both ends of the support rod. When the optical filter needs to be tested, the stepper motor drives the support rod to rotate, so that the support rod drives the optical filter to move between the optical measuring instrument and the light source through the first light shielding cover shell and the second light shielding cover shell. The light source emits light, and the light passes through the optical filter and irradiates the optical measuring instrument, thereby testing the performance of the optical filter. While testing, the staff replaces the optical filter in the first light shielding cover shell and the second light shielding cover shell at the other end. After the test is completed, the positions of the optical filters at both ends are driven by the stepper motor to be exchanged, and then another optical filter is tested, and the optical filter that has been tested is replaced at the same time. Through the test device of the optical filter, the test device can continue to work to detect the optical filter while the filter is replaced, which effectively improves the test efficiency of the test device for the filter.

[0014] 2. In the utility model, the U-shaped frame is slidably connected with the first bracket through a sliding groove and a slider. When the U-shaped frame drives the card block to enter the card groove, the card structure formed by the card block and the card groove can prevent the U-shaped frame from sliding easily. The first bracket and the second bracket are clamped by the U-shaped frame, and then the closed state of the second light shield shell and the first light shield shell is fixed. When the second light shield shell and the first light shield shell are opened, the U-shaped frame is moved with force to make the card block squeezed and deformed and move out of the card groove. When the U-shaped frame and the second bracket are misaligned, the second light shield shell and the first light shield shell can be opened. Through the quick disassembly and assembly mechanism, the second light shield shell and the first light shield shell can be opened or closed conveniently, so as to facilitate the replacement of the filter. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the top view structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the side view structure of the first light shield shell and the second light shield shell of the utility model;

[0017] Figure 3 For this utility model Figure 1 Schematic diagram of the local enlarged structure at point A in the middle.

[0018] In the figure: 1, base; 2, optical measuring instrument; 3, light source; 4, stepping motor; 5, support rod; 6, first light shield shell; 7, second light shield shell; 8, filter; 9, spring slot; 10, spring; 11, push rod; 12, pressure plate; 13, light transmission hole; 14, first bracket; 15, second bracket; 16, U-shaped frame; 17, slide groove; 18, slider; 19, card slot; 20, card block. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] Example:

[0021] See also Figures 1 to 3 The utility model provides a technical solution: a filter testing device, comprising a base 1, an optical measuring instrument 2 and a light source 3 are respectively installed on the top of both ends of the base 1, and a stepping motor 4 is installed on the top of the side near the middle of the base 1, wherein:

[0022] A support rod 5 is installed at the shaft end of the stepping motor 4, and the two ends of the support rod 5 are symmetrically fixedly connected to the first light shield shell 6, and one side of the first light shield shell 6 is rotatably connected to the second light shield shell 7;

[0023] A filter 8 is installed in the first light shield housing 6 and the second light shield housing 7. A light-transmitting hole 13 is penetrated in the middle of the first light shield housing 6 and the second light shield housing 7. The first light shield housing 6 and the second light shield housing 7 are connected at one end away from the rotating part by a quick disassembly mechanism.

[0024] The filter 8 is installed in the first light shielding cover housing 6 and the second light shielding cover housing 7. The filter 8 limiting structure formed by the first light shielding cover housing 6 and the second light shielding cover housing 7 is set at both ends of the support rod 5. When the filter 8 needs to be tested, the stepper motor 4 drives the support rod 5 to rotate, so that the support rod 5 drives the filter 8 to move between the optical measuring instrument 2 and the light source 3 through the first light shielding cover housing 6 and the second light shielding cover housing 7. The light source 3 emits light, and the light passes through the filter 8 and then shines on the optical measuring instrument 2, thereby testing the performance of the filter 8 During the test, the staff replaces the optical filters 8 in the first light shielding cover housing 6 and the second light shielding cover housing 7 at the other end. After the test is completed, the positions of the optical filters 8 at both ends are exchanged by the stepper motor 4, and then the other optical filter 8 is tested, and the optical filter 8 that has been tested is replaced at the same time. Through the testing device for the optical filter 8, the testing device can continue to work to detect the optical filter 8 while the optical filter 8 is replaced, which effectively improves the testing efficiency of the testing device for the optical filter 8.

[0025] See also Figures 1 to 3 , spring grooves 9 are symmetrically provided at the four corners of one side of the first light shielding cover housing 6 close to the second light shielding cover housing 7, a spring 10 is installed in the spring groove 9, a push rod 11 is installed on the open side of the spring 10 close to the spring groove 9, and a pressure plate 12 is fixedly connected to one end of the push rod 11 outside the spring groove 9, the spring groove 9 and the push rod 11 are both T-shaped, and the push rod 11 is elastically connected to the first light shielding cover housing 6 through the spring 10, when the filter 8 is installed in the first light shielding cover housing 6 and the second light shielding cover housing 7, the filter 8 is placed in the second light shielding cover housing 7, and then the second light shielding cover housing 7 is rotated to close the second light shielding cover housing 7 and the first light shielding cover housing 6, after closing, the filter 8 is pressed against the pressure plate 12 to compress the spring 10, and the spring 10 is tightly pressed against the four corners of the filter 8 through the pressure plate 12, so that the filter 8 can be limited, so as to avoid the filter 8 from shaking during detection and improve the detection accuracy.

[0026] See also Figures 1 to 3The quick disassembly and assembly mechanism includes a first bracket 14, an end of the first shading cover shell 6 away from the rotating part is fixedly connected to the first bracket 14, and the second shading cover shell 7 is fixedly connected to the end of the first bracket 14. A U-shaped frame 16 is sleeved on the outer side of the first bracket 14 and the second bracket 15. A slide groove 17 is provided on the outer side of the first bracket 14, and a slider 18 is fixedly connected to the side of the U-shaped frame 16 corresponding to the slide groove 17. A card slot 19 is provided on the outer side of the second bracket 15, and a card block 20 is fixedly connected to the inner side of the U-shaped frame 16 corresponding to the card slot 19. The cross-section of the card block 20 is an arc-shaped metal spring sheet, and the outer size of the card block 20 is consistent with the inner size of the card slot 19. The U-shaped frame 16 is connected to the first bracket 14 through the slide groove 17 and the slider 18. Sliding connection, when the U-shaped frame 16 drives the block 20 to enter the slot 19, the locking structure formed by the block 20 and the slot 19 prevents the U-shaped frame 16 from sliding easily, and the U-shaped frame 16 clamps the first bracket 14 and the second bracket 15, thereby fixing the closed state of the second light shielding cover shell 7 and the first light shielding cover shell 6. When opening the second light shielding cover shell 7 and the first light shielding cover shell 6, the U-shaped frame 16 is moved with force to make the block 20 squeezed and deformed and move out of the slot 19. When the U-shaped frame 16 and the second bracket 15 are misaligned, the second light shielding cover shell 7 and the first light shielding cover shell 6 can be opened. Through the quick disassembly and assembly mechanism, it is convenient to open or close the second light shielding cover shell 7 and the first light shielding cover shell 6, and then it is convenient to replace the filter 8.

[0027] Working principle: In this filter testing device, the filter 8 is installed in the first light shielding cover housing 6 and the second light shielding cover housing 7. The filter 8 limiting structure formed by the first light shielding cover housing 6 and the second light shielding cover housing 7 is arranged at both ends of the support rod 5. When the filter 8 needs to be tested, the stepper motor 4 drives the support rod 5 to rotate, so that the support rod 5 drives the filter 8 to move between the optical measuring instrument 2 and the light source 3 through the first light shielding cover housing 6 and the second light shielding cover housing 7. The light source 3 emits light, and the light passes through the filter 8 and irradiates the optical measuring instrument 2, thereby testing the filter. 8 is tested for its performance. During the test, the staff replaces the optical filters 8 in the first light shield housing 6 and the second light shield housing 7 at the other end. After the test is completed, the positions of the optical filters 8 at both ends are exchanged by the stepper motor 4. Then, the other optical filter 8 is tested, and the optical filter 8 that has been tested is replaced. Through the testing device for the optical filter 8, the testing device can continue to work to detect the optical filter 8 while the optical filter 8 is replaced, which effectively improves the testing efficiency of the testing device for the optical filter 8.

[0028] The U-shaped frame 16 is slidably connected with the first bracket 14 through the slide groove 17 and the slider 18. When the U-shaped frame 16 drives the block 20 to enter the slot 19, the locking structure formed by the block 20 and the slot 19 prevents the U-shaped frame 16 from sliding easily. The U-shaped frame 16 clamps the first bracket 14 and the second bracket 15, thereby fixing the closed state of the second light shield shell 7 and the first light shield shell 6. When the second light shield shell 7 and the first light shield shell 6 are opened, the U-shaped frame 16 is moved with force to make the block 20 squeezed and deformed and move out of the slot 19. When the U-shaped frame 16 and the second bracket 15 are misaligned, the second light shield shell 7 and the first light shield shell 6 can be opened. The cover shell 6, through the quick disassembly and assembly mechanism, can conveniently open or close the second light shielding cover shell 7 and the first light shielding cover shell 6, and thus conveniently replace the filter 8, and when the filter 8 is installed in the first light shielding cover shell 6 and the second light shielding cover shell 7, the filter 8 is placed in the second light shielding cover shell 7, and then the second light shielding cover shell 7 is rotated to close the second light shielding cover shell 7 and the first light shielding cover shell 6. After closing, the filter 8 is pressed against the pressure plate 12 to compress the spring 10, and the spring 10 is tightly pressed against the four corners of the filter 8 through the pressure plate 12, thereby being able to limit the filter 8, avoiding the filter 8 from shaking during detection, and improving the accuracy of detection.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A filter testing device, comprising a base (1), characterized in that: An optical measuring instrument (2) and a light source (3) are respectively installed at the top of both ends of the base (1), and a stepping motor (4) is installed at the top of the side near the middle of the base (1), wherein: A support rod (5) is installed at the shaft end of the stepping motor (4), and the two ends of the support rod (5) are symmetrically fixedly connected to a first light shield shell (6), and one side of the first light shield shell (6) is rotatably connected to a second light shield shell (7); A filter (8) is installed in the first light shielding cover shell (6) and the second light shielding cover shell (7); a light-transmitting hole (13) is penetrated through the middle of the first light shielding cover shell (6) and the second light shielding cover shell (7); and the first light shielding cover shell (6) and the second light shielding cover shell (7) are connected at one end away from the rotating part via a quick disassembly mechanism.

2. The optical filter testing device according to claim 1, characterized in that: The first light shield shell (6) is provided with spring grooves (9) symmetrically at four corners of one side close to the second light shield shell (7), a spring (10) is installed in the spring groove (9), a push rod (11) is installed on the opening side of the spring (10) close to the spring groove (9), and a pressure plate (12) is fixedly connected to one end of the push rod (11) outside the spring groove (9).

3. The filter testing device according to claim 2, characterized in that: The spring slot (9) and the push rod (11) are both T-shaped, and the push rod (11) is elastically connected to the first light shield shell (6) via a spring (10).

4. The optical filter testing device according to claim 1, characterized in that: The quick disassembly and assembly mechanism comprises a first bracket (14), an end of the first shading hood shell (6) away from the rotating part is fixedly connected to the first bracket (14), the end of the second shading hood shell (7) corresponding to the first bracket (14) is fixedly connected to the second bracket (15), the outer sides of the first bracket (14) and the second bracket (15) are sleeved with a U-shaped frame (16), the outer side of the first bracket (14) is provided with a slide groove (17), the side of the U-shaped frame (16) corresponding to the slide groove (17) is fixedly connected with a slider (18), the outer side of the second bracket (15) is provided with a clamping groove (19), and the inner side of the U-shaped frame (16) corresponding to the clamping groove (19) is fixedly connected with a clamping block (20).

5. The optical filter testing device according to claim 4, characterized in that: The cross section of the clamping block (20) is an arc-shaped metal spring sheet, and the outer dimensions of the clamping block (20) are consistent with the inner dimensions of the clamping slot (19).

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