Optical test bench for testing optical performance

Abstract

The utility model relates to an optical testboard for testing optical performance, which belongs to the technical field of detection equipment and comprises a plurality of groups of bases which are arranged in a sliding manner, a Z-axis manual sliding table is mounted on one base, field angle test cards are mounted on the rest bases, an X-axis cross sliding table is mounted on the optical testboard, and the X-axis cross sliding table is connected with the Z-axis manual sliding table. An adjustable X-axis and Z-axis manual displacement table is mounted on the X-axis cross sliding table; and a clamp is mounted on the X-axis and Z-axis manual displacement table. According to the device, through the Z-axis manual sliding table, the X-axis cross-shaped sliding table and the X-axis and Z-axis manual displacement table, the up-and-down and left-and-right size from the end of the endoscope head to the front end to the test card can be accurately controlled, the end of the endoscope head is located at the ideal test position, backlight can be provided for the resolution test card through the LED backlight lamp panel, and test data are more accurate.

Description

Technical Field

[0001] This utility model relates to the field of testing equipment technology, specifically to an optical testing station for testing optical performance. Background Technology

[0002] An optical testing stage is a testing device used for rigorous performance evaluation of various endoscopic products. By using an optical testing stage, key performance parameters of these devices can be accurately measured, such as field of view, resolution, and depth of field. Field of view refers to the range of vision the device can observe; direction of view relates to the lens's pointing ability; resolution is an important indicator of image sharpness; and depth of field describes the clarity of the image at different distances. Accurate measurement of these parameters is crucial for ensuring the effectiveness and safety of endoscopic devices in clinical use. In existing devices, insufficient standardization of dimensions often leads to errors during testing of these critical parameters. Therefore, our company plans to develop an innovative optical testing stage. Utility Model Content

[0003] The present invention aims to solve the above-mentioned technical problems by providing an optical testing stage for testing optical performance.

[0004] To solve the above-mentioned technical problems, the technical solution provided by this utility model is as follows:

[0005] An optical testing stage for testing optical performance includes multiple sliding bases, one of which is equipped with a Z-axis manual slide, and the remaining bases are equipped with field-of-view test charts.

[0006] An X-axis cross slide is installed on the optical testing stand.

[0007] An adjustable X-axis and Z-axis manual displacement stage is installed on the X-axis cross slide.

[0008] The X-axis and Z-axis manual displacement stage is equipped with a clamp.

[0009] Preferably, a common plate is connected to the lower end of the base, a first slider is installed at the lower end of the common plate, and a slide table for use with the first slider is installed on the optical testing platform.

[0010] Preferably, the sliding direction of the X-axis cross slide is set at an angle to the slide.

[0011] Preferably, the Z-axis manual slide includes a second slider that slides to connect to the base, an LED backlight is mounted on one side of the second slider, and a resolution test card is mounted on the LED backlight.

[0012] Preferably, the X-axis cross slide is a lead screw mechanism and includes a lead screw, a rolling nut and a guide rod, and the X-axis and Z-axis manual displacement stage is mounted on the rolling nut.

[0013] Preferably, the X-axis and Z-axis manual displacement stage includes a fixed block mounted on a rolling nut, an X-axis moving block slidably mounted on the fixed block, a vertical block mounted on the X-axis moving block, a Z-axis moving block mounted on the vertical block, and a clamp mounted on the Z-axis moving block.

[0014] Preferably, the clamp includes a fixed clamping plate fixedly connected to the Z-axis moving block and a movable clamping plate hinged to the fixed clamping plate, and the opposite surfaces of the fixed clamping plate and the hinged fixed clamping plate are provided with multiple sets of clamping grooves.

[0015] Preferably, a first adjusting bolt is threaded onto the fixed block, an L-shaped magnet is mounted on the X-axis moving block, and a first magnetic block is mounted on the output end of the first adjusting bolt, and the first magnetic block can be used in conjunction with the L-shaped magnet.

[0016] Preferably, a triangular block is hinged to one side of the vertical block and a second adjusting bolt is threaded on it. A second magnetic block is installed on both inclined surfaces of the triangular block. A third magnetic block is installed at the output end of the second adjusting bolt and can be used in conjunction with one of the second magnetic blocks. A fourth magnetic block is installed at the lower end of the Z-axis moving block and the third magnetic block can be used in conjunction with the other second magnetic block.

[0017] With the above structure, this utility model has the following advantages:

[0018] This device, through a Z-axis manual slide, an X-axis cross slide, and an X-axis and Z-axis manual displacement stage, can precisely control the vertical and horizontal dimensions of the endoscope tip relative to the front end of the test card. The endoscope tip is positioned in the ideal test position, and the LED backlight panel provides backlighting for the resolution test card, making the test data more accurate.

[0019] The above overview is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present invention will become readily apparent from the accompanying drawings and the following detailed description. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of this utility model.

[0022] Figure 2 This is the first exploded view of this utility model.

[0023] Figure 3 This is the second exploded view of this utility model.

[0024] Figure 4 This is a schematic diagram of the test structure of this utility model.

[0025] As shown in the figure: 1. Optical testing stage; 2. Base; 201. First slider; 202. Slide table; 203. Common plate; 3. Z-axis manual slide table; 301. Second slider; 302. LED backlight panel; 4. X-axis cross slide table; 401. Lead screw; 402. Rolling nut; 403. Guide rod; 5. X-axis and Z-axis manual displacement stage; 501. Fixed block; 502. X-axis moving block; 503. Vertical block; 504. Z-axis moving block; 505. First adjusting bolt; 506. L-shaped magnet; 507. First magnetic block; 508. Triangular block; 509. Second adjusting bolt; 510. Third magnetic block; 511. Fourth magnetic block; 512. Second magnetic block; 6. Fixture; 601. Fixed clamping plate; 602. Movable clamping plate; 603. Clamping groove; 7. Field of view test card. Detailed Implementation

[0026] The embodiments of this application are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0027] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0028] The present invention will now be described in further detail in conjunction with the full text.

[0029] Combined with appendix Figures 1-4An optical testing stage for testing optical performance is disclosed. The optical testing stage 1 includes multiple sliding bases 2. A Z-axis manual slide 3 is installed on one base 2, and a field of view test card 7 is installed on the remaining bases 2. The field of view test card 7, LED backlight 302, endoscope equipment, image processor electrical components, and X-axis cross slide 4 used in this application are all products that can be directly purchased on the market. Their principles and connection methods are existing technologies well known to those skilled in the art, and therefore will not be described in detail here.

[0030] An X-axis cross slide 4 is installed on the optical testing stage 1.

[0031] An adjustable X-axis and Z-axis manual displacement stage 5 is installed on the X-axis cross slide 4.

[0032] The X-axis and Z-axis manual displacement stage 5 is equipped with a clamp 6.

[0033] The lower end of the base 2 is connected to a common plate 203, and the lower end of the common plate 203 is equipped with a first slider 201. The optical test stage 1 is equipped with a slide stage 202 that works with the first slider 201.

[0034] The sliding direction of the X-axis cross slide 4 is set at 90 degrees to that of slide 202.

[0035] The Z-axis manual slide 3 includes a second slider 301 that slides to connect to the base 2, and an LED backlight 302 is mounted on one side of the second slider 301.

[0036] In specific implementation of this utility model, such as Figure 1 and Figure 2 As shown, the two ends of the lead screw 401 are connected to bearing seats or mounting blocks via bearings. The mounting blocks or bearing seats are fixedly connected to the optical testing stage 1. The rolling nut 402 is installed on the outside of the lead screw 401. The guide rod 403 passes through the rolling nut 402 to achieve limiting. The guide rod 403 is connected between the two mounting blocks or bearing seats. The X-axis cross slide 4 is a lead screw mechanism and includes the lead screw 401, the rolling nut 402 and the guide rod 403. The X-axis and Z-axis manual displacement stage 5 is installed on the rolling nut 402.

[0037] In specific implementation of this utility model, such as Figure 2 and Figure 3As shown. The X-axis and Z-axis manual displacement stage 5 includes a fixed block 501 mounted on a rolling nut 402, an X-axis moving block 502 slidably mounted on the fixed block 501, a vertical block 503 mounted on the X-axis moving block 502, a Z-axis moving block 504 mounted on the vertical block 503, and a clamp 6 mounted on the Z-axis moving block 504. A first adjusting bolt 505 is threaded onto the fixed block 501. An L-shaped magnet 506 is mounted on the X-axis moving block 502. A first magnetic block 507 is mounted on the output end of the first adjusting bolt 505, and the first magnetic block 507 can be used in conjunction with the L-shaped magnet 506. A triangular block 508 is hinged to one side of the vertical block 503, and a second adjusting bolt 509 is threaded onto it. A second magnetic block 512 is mounted on both inclined surfaces of the triangular block 508. A third magnetic block 510 is mounted on the output end of the second adjusting bolt 509, and the third magnetic block 510 can be used in conjunction with one of the second magnetic blocks 512. A fourth magnetic block 511 is mounted on the lower end of the Z-axis moving block 504, and the third magnetic block 510 can be used in conjunction with the other second magnetic block 512. Rotating the first adjusting bolt 505 can push the L-shaped magnet 506 to drive the X-axis moving block 502 to slide and adjust on the fixed block 501. The first adjusting bolt 505 and the L-shaped magnet 506 are attracted by the first magnetic block 507. When resetting, the first adjusting bolt 505 can be rotated in the opposite direction to drive the X-axis moving block 502 to reset. Similarly, rotating the second adjusting bolt 509 pushes the triangular block 508 to rotate. The triangular block 508 pushes the fourth magnetic block 511 to make the Z-axis moving block 504 move up and down. The Z-axis moving block 504 can be reset by magnetic force. Specifically, the fixed block 501 is slidably mounted with the X-axis moving block 502, and the vertical block 503 is slidably mounted with the Z-axis moving block 504. The sliding installation can be limited by the structure of the slider and the groove.

[0038] In specific implementation of this utility model, such as Figure 2 As shown, the fixture 6 includes a fixed clamping plate 601 fixedly connected to the Z-axis moving block 504 and a movable clamping plate 602 hinged to the fixed clamping plate 601. Multiple sets of clamping slots 603 are formed on the opposing surfaces of both the fixed clamping plate 601 and the hinged fixed clamping plate 601. First, the endoscope device is placed on the fixture 6 on the optical testing stage 1. The multiple sets of clamping slots 603 of the fixture 6 can accommodate various types of endoscopes, ensuring that each device can be tested.

[0039] In a specific implementation of this invention, the optical testing stage 1 is equipped with two handles for easy movement. The optical testing stage also features an image display that shows the image of the endoscope being tested, allowing for accurate reading of the test parameters.

[0040] like Figure 1As shown, in a specific implementation of this invention, the LED backlight panel on the optical testing platform 1 is connected to a DC 12V power supply. The LED light is adjustable, adjusting its brightness according to different distances to illuminate the resolution test card (used to test resolution and depth of field). The endoscope tip is placed on the fixture on the optical testing platform, ensuring it is flush with the front of the fixture. The endoscope is connected to the Remo image display interface, and the power button is pressed; the tip then illuminates. The left and right distances of the slides, the Z-axis manual slide, and the X-axis cross slide are adjusted to position the tip at the location on the resolution test card to be tested.

[0041] When testing resolution using the resolution test chart, the distance is 10mm; when testing depth of field, the distance is 3-100mm. An optical test stand and resolution / depth of field test charts are used to measure both. The test image is displayed on an image monitor; check if the image meets the requirements.

[0042] This invention utilizes a method of fixing two different functional test cards onto a dedicated base when testing the field of view, resolution, and depth of field of an endoscope. The resolution test card is mounted on an LED backlight panel, and its back is specially designed with an LED backlight panel. This ensures the accuracy of test results during power-on testing, thus providing more reliable data support for endoscope performance evaluation.

[0043] like Figure 4 As shown, for precise optical performance testing, the endoscope is first placed on the multi-functional clamp 6 on the optical testing stage 1. This clamp 6 is adaptable to various endoscope models, ensuring that each device can be tested. A magnet is incorporated into this device to more effectively and firmly fix the endoscope lens tip in the appropriate position, thus ensuring the stability and accuracy of the test. After the endoscope is fixed, it is connected to an image display via a video cable. This allows the operator to observe the image captured by the endoscope lens in real time. For depth-of-field testing, the test distance on the X-axis cross slide needs to be adjusted. The X-axis cross slide has an adjustment range from 0 mm to 120 mm, a design that meets the needs of endoscope depth-of-field testing, ensuring the accuracy and reliability of the test results. Simultaneously, the optical testing stage includes a Z-axis manual slide, which can be adjusted vertically from 0 mm to 70 mm. The X-axis and Z-axis manual displacement stages can be adjusted by ±7.5 mm on the X-axis and ±3.5 mm on the Z-axis.

[0044] The present invention and its embodiments have been described above. This description is not restrictive, and the embodiments shown throughout the text are only one of the embodiments of the present invention. The actual structure is not limited to this. In conclusion, if a person skilled in the art is inspired by this description and designs a similar structure and embodiment without departing from the inventive spirit of the present invention, such design should fall within the protection scope of the present invention.

Claims

1. An optical testing stage for inspecting optical performance, characterized in that, The optical testing stage (1) includes multiple sliding bases (2), one of which is equipped with a Z-axis manual slide (3), and the remaining bases (2) are equipped with field-of-view test cards (7). An X-axis cross slide (4) is installed on the optical testing stage (1). An adjustable X-axis and Z-axis manual displacement stage (5) is installed on the X-axis cross slide (4); The X-axis and Z-axis manual displacement stage (5) is equipped with a clamp (6).

2. The optical testing stand for testing optical performance according to claim 1, characterized in that: The lower end of the base (2) is connected to a common plate (203), and a first slider (201) is installed on the lower end of the common plate (203). A slide table (202) for use with the first slider (201) is installed on the optical test stage (1).

3. The optical testing stand for testing optical performance according to claim 1, characterized in that: The sliding direction of the X-axis cross slide (4) is set at 90 degrees to the slide (202).

4. The optical testing stand for testing optical performance according to claim 1, characterized in that: The Z-axis manual slide (3) includes a second slider (301) that slides to connect to the base (2). An LED backlight panel (302) is installed on one side of the second slider (301), and a resolution test card is installed on the LED backlight panel (302).

5. The optical testing stand for testing optical performance according to claim 1, characterized in that: The X-axis cross slide (4) is a lead screw mechanism and includes a lead screw (401), a rolling nut (402) and a guide rod (403). The X-axis and Z-axis manual displacement stage (5) is mounted on the rolling nut (402).

6. The optical testing stand for testing optical performance according to claim 5, characterized in that: The X-axis and Z-axis manual displacement stage (5) includes a fixed block (501) mounted on a rolling nut (402), an X-axis moving block (502) slidably mounted on the fixed block (501), a vertical block (503) mounted on the X-axis moving block (502), a Z-axis moving block (504) slidably mounted on the vertical block (503), and a clamp (6) mounted on the Z-axis moving block (504).

7. The optical testing stand for testing optical performance according to claim 6, characterized in that: The clamp (6) includes a fixed clamping plate (601) fixedly connected to the Z-axis moving block (504) and a movable clamping plate (602) hinged to the fixed clamping plate (601). Multiple sets of clamping grooves (603) are provided on the opposite surfaces of the fixed clamping plate (601) and the hinged fixed clamping plate (601).

8. The optical testing stand for testing optical performance according to claim 6, characterized in that: The fixed block (501) is threaded with a first adjusting bolt (505), and the X-axis moving block (502) is equipped with an L-shaped magnet (506). The output end of the first adjusting bolt (505) is equipped with a first magnetic block (507), and the first magnetic block (507) can be used in conjunction with the L-shaped magnet (506).

9. The optical testing stand for testing optical performance according to claim 6, characterized in that: A triangular block (508) is hinged to one side of the vertical block (503), and a second adjusting bolt (509) is threaded onto it. The second adjusting bolt (509) can push the Z-axis moving block (504) up and down through the hinged triangular block (508). A second magnetic block (512) is installed on both inclined surfaces of the triangular block (508). A third magnetic block (510) is installed at the output end of the second adjusting bolt (509), and the third magnetic block (510) can be used in conjunction with one of the second magnetic blocks (512). A fourth magnetic block (511) is installed at the lower end of the Z-axis moving block (504), and the third magnetic block (510) can be used in conjunction with the other second magnetic block (512).

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