Arc-shaped guide rail optical testboard

Abstract

The utility model discloses an arc-shaped guide rail optical test board, and particularly relates to the technical field of optical test equipment. Comprising a testing mechanism and an instrument table mechanism, the testing mechanism comprises a luminance meter, the instrument table mechanism comprises an operation table and an arc-shaped guide rail, the arc-shaped guide rail is fixed to the operation table, the testing mechanism further comprises a sliding seat assembly, the luminance meter is installed on the sliding seat assembly, the sliding seat assembly comprises a sliding seat body and a sliding block, and the sliding block is connected with the sliding seat body. The sliding block is matched with the arc-shaped guide rail. According to the utility model, the problems of low manual operation efficiency, low positioning precision and poor repeatability are solved, the test process is optimized, the test efficiency is improved, and the accuracy of the test result is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of optical testing equipment, and specifically relates to an arc-shaped guide rail optical test bench. Background Art

[0002] In the field of projection display technology, the gain and viewing angle of a projection screen are important indicators to measure its performance. To accurately measure these parameters, professional test tools are required. Among them, a luminance meter is one of the most commonly used devices. Through the luminance meter, the luminance distribution on the projection screen at different angles can be measured, and then the gain and viewing angle can be calculated.

[0003] To comprehensively evaluate the performance of a projection screen, it is usually necessary to change the test angle of the luminance meter to collect multiple groups of data. At present, this process often relies on manual operation. The tester needs to manually move the luminance meter to different angular positions and manually adjust the luminance meter after each movement to ensure its accurate alignment with the test point on the screen. Although this method is relatively common, it also exposes many drawbacks.

[0004] 1. Low efficiency: Manually moving and adjusting the luminance meter takes a lot of time, especially when a large amount of data needs to be collected for precise analysis, this process is particularly cumbersome.

[0005] 2. Low positioning accuracy: Due to the uncertainty and error of manual operation, the process of manually adjusting the luminance meter to align with the test point often fails to achieve high precision. This positioning error will directly affect the accuracy of the test results, making the measured data difficult to truly reflect the actual performance of the projection screen.

[0006] 3. Poor repeatability: Since manual adjustment and positioning need to be performed again for each test, there may be significant differences between tests performed by different testers or by the same tester at different times. This difference reduces the comparability and repeatability of the test results, bringing difficulties to product evaluation and improvement.

[0007] Therefore, there is an urgent need for a more efficient, accurate and repeatable test method. Summary of the Utility Model

[0008] The utility model provides an arc-shaped guide rail optical test bench, which solves the problems of low efficiency, low positioning accuracy and poor repeatability of manual operation, optimizes the test process, improves the test efficiency, and enhances the accuracy of the test results.

[0009] The technical solution adopted by the utility model is as follows:

[0010] An arc-shaped guide rail optical test bench includes a test mechanism and an instrument table mechanism. The test mechanism includes a luminance meter, and the instrument table mechanism includes an operation table.

[0011] The instrument table mechanism further includes an arc-shaped guide rail, which is fixed on the operation table.

[0012] The testing mechanism further includes a sliding seat assembly, on which the luminance meter is installed. The sliding seat assembly includes a sliding seat body and a slider. The slider is connected to the sliding seat body and cooperates with the arc-shaped guide rail.

[0013] Furthermore, the instrument table mechanism further includes a scale plate, which is arranged on the operation table. The scale plate is arc-shaped and has the same center of the circle as the arc-shaped guide rail.

[0014] Furthermore, the testing mechanism further includes a scale indicating needle, which is installed on one side of the sliding seat body and aligns with the scale on the scale plate.

[0015] Furthermore, the sliding seat assembly further includes a positioning member, which is arranged on the sliding seat body and the scale indicating needle is connected to the positioning member.

[0016] Furthermore, the sliding seat assembly further includes a lifting platform, which is fixedly connected to the sliding seat body, and the luminance meter is installed on the lifting platform.

[0017] Furthermore, the sliding seat assembly further includes a locking member, which is arranged on the sliding seat body and is located above the arc-shaped guide rail.

[0018] Furthermore, the instrument table mechanism further includes a plurality of universal wheels, which are installed at the bottom of the operation table.

[0019] The beneficial effects of the present utility model are as follows:

[0020] 1. In the present utility model, the design of the arc-shaped guide rail allows the luminance meter to smoothly move on the guide rail through the sliding seat assembly, without the need for testers to manually move and adjust the position of the luminance meter. This semi-automatic moving method greatly saves the testing time, reduces the interruption and waiting time during the testing process, and greatly improves the testing efficiency.

[0021] 2. The cooperation between the arc-shaped guide rail and the sliding seat assembly in the present utility model ensures the stability and accuracy of the luminance meter during the moving process. Through the precise guide rail system and slider design, the luminance meter can easily and accurately locate to any test point on the curtain, greatly reducing the errors caused by manual operation.

[0022] 3. The present utility model adopts a standardized test process and a semi-automatic positioning method, enabling high consistency among tests conducted by different testers or the same tester at different times. This repeatability ensures the stability and comparability of test results, providing a strong guarantee for the continuous monitoring and improvement of product quality. Description of the Drawings

[0023] Figure 1 It is a schematic diagram of the working state of the arc-shaped guide rail optical test bench;

[0024] Figure 2 It is a schematic diagram of the structure of the arc-shaped guide rail optical test bench;

[0025] Figure 3 It is an enlarged view of a partial structure of the arc-shaped guide rail optical test bench;

[0026] Figure 4 It is a schematic diagram of the structure of the test mechanism;

[0027] Figure 5 It is a top view of the working state of the arc-shaped guide rail optical test bench.

[0028] In the drawings, the list of components represented by each reference numeral is as follows:

[0029] 1. Test mechanism; 2. Instrument table mechanism; 3. Curtain; 4. Screw; 11. Luminance meter; 12. Slide seat assembly; 13. Scale indicating needle; 21. Operating table; 22. Arc-shaped guide rail; 23. Scale board; 24. Universal wheel; 121. Slide seat body; 122. Positioning member; 123. Lifting table; 124. Slide block; 125. Locking member. Detailed Embodiment

[0030] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0031] An arc-shaped guide rail optical test bench provided in this embodiment is used to test the gain and visual effect of the projection curtain 3 and is used in cooperation with the curtain 3.

[0032] As Figures 1 - 5As shown in the figure, this embodiment provides an arc-shaped guide rail optical test bench, which includes a test mechanism 1 and an instrument table mechanism 2. The test mechanism 1 is placed on the instrument table mechanism 2 and is slidably connected to the instrument table mechanism 2. Among them, the test mechanism 1 is used to perform tests on the gain effect and visual effect of the curtain 3. The instrument table mechanism 2 provides a stable support and operation platform for the test mechanism 1, ensuring the stability of the equipment and the convenience of operation during the test. By sliding the test mechanism 1 on the instrument table mechanism 2, measurements at different angles are realized, and a comprehensive evaluation of the performance of the curtain 3 is achieved.

[0033] Specifically, as Figure 2 and Figure 3 shown, the instrument table mechanism 2 includes an operation table 21, an arc-shaped guide rail 22, a scale plate 23, and universal wheels 24. The operation table 21 is a cube frame. The arc-shaped guide rail 22 and the scale plate 23 are respectively fixedly installed on both sides of the tabletop of the operation table 21. Both the arc-shaped guide rail 22 and the scale plate 23 are arc-shaped, and the arc-shaped guide rail 22 and the scale plate 23 have the same center of the circle. The above-mentioned center of the circle is located on one side of the curtain 3. There are multiple universal wheels 24. In this embodiment, there are four, which are respectively installed at the four corners of the bottom of the operation table 21, and the universal wheels 24 have a brake locking structure. The universal wheels 24 with the brake locking function are prior art and will not be elaborated here.

[0034] Among them, the operation table 21 serves as the basic support structure of the entire device, providing a platform for the installation and support of other components; the arc-shaped guide rail 22 provides a sliding track for the test mechanism 1 to ensure that it can move smoothly along the preset arc path; the scale plate 23 is used to provide an intuitive reading of the test angle; the universal wheels 24 facilitate the movement and positioning of the test bench, and at the same time, the position of the test bench can be locked during the test to prevent it from moving and affecting the accuracy of the test results.

[0035] Specifically, as Figures 2 - 4 shown, the test mechanism 1 includes a luminance meter 11, a sliding seat assembly 12, and a scale indicating needle 13. The luminance meter 11 is a common device for testing the gain and viewing angle of the curtain 3, such as the SRC-600 model. The structure thereof will not be elaborated here. The luminance meter 11 is installed on the sliding seat assembly 12 and faces the curtain 3. The sliding seat assembly 12 cooperates with the arc-shaped guide rail 22 in the instrument table mechanism 2 to achieve sliding. The scale indicating needle 13 is installed on one side of the sliding seat assembly 12, and when the sliding seat assembly 12 slides along the arc-shaped guide rail 22, the scale indicating needle 13 always aligns with the scale on the scale plate 23. Among them, the luminance meter 11, as the core device for testing, is used to measure the brightness distribution on the projection curtain 3 at different angles; the sliding seat assembly 12 provides a stable and adjustable support platform for the luminance meter 11; the scale indicating needle 13 is used in conjunction with the scale plate 23 to indicate the current position of the sliding seat assembly 12 on the arc-shaped guide rail 22, which can help the tester accurately record the angle information of each test point.

[0036] Specifically, as Figure 3 and Figure 4 shown, the slide seat assembly 12 includes a slide seat body 121, a positioning member 122, a lifting platform 123 and a slider 124. The lifting platform 123 is a scissor structure, which is a prior art and can be telescopically extended up and down. For example, the Guanghe Kunshenglong brand aluminum oxidation platform with a specification of 250*250. The lifting platform 123 is fixedly installed on the slide seat body 121, the luminance meter 11 is installed on the lifting platform 123, the slider 124 is installed at the bottom of the slide seat body 121, and the slider 124 cooperates with the arc-shaped guide rail 22 to achieve a sliding connection. The positioning member 122 is arranged on one side of the slide seat body 121 and is used to install the scale indicating needle 13. Among them, the slide seat body 121 is the main structure of the slide seat assembly 12, which is used to carry other components and provide stable support; the positioning member 122 is used to install the scale indicating needle 13 and ensure its stability during the test; the lifting platform 123 can be telescopically extended up and down to adjust the height of the luminance meter 11 to ensure that the luminance meter 11 and the measured point are on the same horizontal line; the slider 124 cooperates with the arc-shaped guide rail 22 to achieve a sliding connection, and the design of the slider 124 enables the smooth sliding and precise positioning of the slide seat assembly 12 on the arc-shaped guide rail 22.

[0037] To fix the position of the slide seat assembly 12 on the arc-shaped guide rail 22 and ensure the stability of the test mechanism 1 after moving to the required position, as Figure 3 and Figure 4 shown, a locking member 125 is further provided on the slide seat assembly 12. A threaded hole is opened in the middle of the locking member 125. The locking member 125 is arranged on the slide seat body 121 and the locking member 125 is always located above the arc-shaped guide rail 22. Specifically, when the slide seat assembly 12 moves the test mechanism 1 to the required position along the arc-shaped guide rail 22 direction, by tightening the screw 4 that cooperates with the threaded hole on the locking member 125, the screw 4 abuts against the arc-shaped guide rail 22 to achieve locking. Through the locking function of the locking member 125, a stable support environment is provided for the test mechanism 1, preventing the test mechanism 1 from shifting due to external force or vibration during the test, improving the accuracy of the test. In addition, it ensures that each test is carried out at the same position, improving the repeatability and comparability of the test results.

[0038] The working principle of the present utility model is as follows:

[0039] As Figure 5As shown, slide the arc-shaped guide rail optical test bench to a predetermined position in front of the curtain 3 through the universal wheels 24, align the luminance meter 11 with the curtain 3, and lock the universal wheels 24 so that the test bench will not move during the test. It should be noted that the above-mentioned predetermined position is aligned with the center of the curtain 3, and since the radius of the arc-shaped guide rail 22 is a fixed value, in order to ensure that the instrument always aligns with the measured point on the screen during measurement, the distance value from the edge of the operating table 21 to the surface of the measured curtain 3 is also a fixed value, which is determined according to the radius of the arc-shaped guide rail 22 and the measured point.

[0040] During measurement, first adjust the height of the lifting platform 123 to the target position. The target position and the measured point are on the same horizontal line. Confirm that the screw 4 is screwed away from the surface of the arc-shaped guide rail 22 so as not to hinder the sliding. Slide the slide seat assembly 12 along the arc-shaped guide rail 22, observe the position indicated by the scale indicating needle 13 on the scale plate 23. After sliding to the required position, tighten the screw 4 to fix the test mechanism 1 on the arc-shaped guide rail 22 so that it will not move slightly, and then conduct the test and record the test results and the scale indicated by the scale indicating needle 13.

[0041] After completing the test of the first angle, loosen the screw 4, continue to slide the slide seat assembly 12 along the arc-shaped guide rail 22, repeat the above measurement steps, and record multiple groups of data.

[0042] After completing the measurement, according to the accuracy requirements, the recorded angle data can be used for repeated measurement to verify and compare the measurement results.

[0043] The above has described a specific embodiment of the present invention in detail, but the content described is only a preferred embodiment of the present invention and cannot be considered as limiting the scope of implementation of the present invention. All equivalent changes and improvements made according to the scope of the application of the present invention should still fall within the scope covered by the patent of the present invention.

Claims

1. An arc-shaped guide rail optical test bench, comprising a test mechanism (1) and an instrument platform mechanism (2), wherein the test mechanism (1) comprises a luminance meter (11), and the instrument platform mechanism (2) comprises an operating platform (21), characterized in that: The instrument platform mechanism (2) further comprises an arc-shaped guide rail (22), wherein the arc-shaped guide rail (22) is fixed on the operating platform (21). The testing mechanism (1) further comprises a slide assembly (12), the luminance meter (11) is mounted on the slide assembly (12), the slide assembly (12) comprises a slide body (121) and a slider (124), the slider (124) is connected to the slide body (121), and the slider (124) cooperates with the arc guide rail (22).

2. The arc-guide optical test bench according to claim 1, characterized in that: The instrument platform mechanism (2) further comprises a scale plate (23), wherein the scale plate (23) is arranged on the operating platform (21), the scale plate (23) is arc-shaped, and the scale plate (23) and the arc-shaped guide rail (22) have the same center.

3. The arc-guide optical test bench according to claim 2, characterized in that: The testing mechanism (1) further comprises a scale indicator needle (13), wherein the scale indicator needle (13) is mounted on one side of the slide seat body (121), and the scale indicator needle (13) is aligned with the scale on the scale plate (23).

4. The arc-guide optical test bench according to claim 3, characterized in that: The slide assembly (12) further comprises a positioning member (122), wherein the positioning member (122) is arranged on the slide body (121), and the scale indicator needle (13) is connected to the positioning member (122).

5. The arc-guide optical test bench according to claim 1 or 4, characterized in that: The slide assembly (12) further comprises a lifting platform (123), wherein the lifting platform (123) is fixedly connected to the slide body (121), and the brightness meter (11) is mounted on the lifting platform (123).

6. The arc-guide optical test bench according to claim 5, characterized in that: The slide assembly (12) further comprises a locking member (125), wherein the locking member (125) is arranged on the slide body (121), and the locking member (125) is located above the arc-shaped guide rail (22).

7. The arc-guide optical test bench according to claim 1, characterized in that: The instrument platform mechanism (2) further comprises a universal wheel (24), a plurality of the universal wheels (24) are provided, and the universal wheels (24) are installed at the bottom of the operating platform (21).

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