Camera multi-distance focusing and testing device
By combining the design of a multi-layer transparent substrate with SFR or MTF algorithms, efficient focusing and testing of the camera at multiple distances were achieved, solving the problems of complicated processes and difficulty in guaranteeing yield in existing technologies.
Patent Information
- Application Number
- CN202423030990.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-09
- Publication Date
- 2025-11-04
- Estimated Expiration
- 2034-12-09
AI Technical Summary
In existing technologies, focusing and testing cameras at multiple distances requires additional processes and multiple tests, resulting in numerous procedures and difficulty in guaranteeing yield.
Design a camera multi-distance focusing and testing device, which adopts a multi-layer height-adjustable transparent carrier plate, with charts of different test points set on the transparent carrier plate, and calculates multi-distance scores through SFR or MTF algorithms to achieve single focusing and testing.
It simplifies the testing process, improves work efficiency, ensures production yield, and meets testing requirements for multiple distances.
Smart Images
Figure CN223514954U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a kind of camera technical field, especially a kind of camera multi-distance focusing and testing device. BACKGROUND
[0002] Camera module is mainly applied to mobile phone, tablet computer, unmanned aerial vehicle, medical treatment, code scanning gun and other electronic terminal products, and has become indispensable to people's daily necessities.
[0003] Conventional focusing camera usually uses single distance to focus and test, and conventional zoom lens usually uses long-distance focusing test and then increases near-distance focusing test, but some special application cameras, such as learning tablet and code scanning gun, need to ensure resolution within a certain range, and the test distance of the camera is usually two or more distances, and the factory can only verify the yield by single-distance focusing process during focusing, and can only use multiple testing methods to meet the testing requirements during testing, and the current generation method not only has difficulty in ensuring yield, but also has many processes. SUMMARY
[0004] The utility model mainly solves the problem that focusing and testing of camera need to increase process multiple testing and have many processes and difficulty in ensuring yield, and provides a kind of camera multi-distance focusing and testing device.
[0005] The utility model solves the technical scheme that the utility model adopts: a kind of camera multi-distance focusing and testing device, including test machine, light source plate is arranged in the top of test machine, camera is installed in the middle of the bottom of test machine, and multiple height-adjustable transparent carrier plates are arranged in test machine, chart is arranged on transparent carrier plate.
[0006] The utility model designs multiple transparent carrier plates, chart is arranged on different transparent carrier plates, and a superimposed chart with multiple different distance test points is formed by superimposing in vertical viewing angle, since the size of chart is different at different distances, SFR or MTF algorithm is used to calculate the score of multiple distances, which can facilitate multi-distance focusing and testing production, the utility model can focus and test multiple distances at a time, without increasing process multiple testing, reduce process, improve work efficiency, and ensure production yield.
[0007] As a preferred scheme of the above scheme, chart on multiple transparent carrier plates is staggered.
[0008] The chart test points on different transparent carriers in the scheme are staggered with each other. Due to the transparent property of the transparent carrier, the charts are superimposed to form a chart in the camera view direction. The charts at different distances have different sizes, and the SFR or MTF algorithm is used to calculate the scores at multiple distances.
[0009] As a preferred scheme of the above scheme, the transparent carrier is a glass carrier.
[0010] Preferably, the transparent carrier in the scheme is a glass carrier made of glass.
[0011] As a preferred scheme of the above scheme, a calibration pattern is arranged at a corresponding same position on each transparent carrier.
[0012] The same shape calibration pattern is arranged at the same position on each transparent carrier. After the transparent carrier is adjusted, the calibration patterns substantially overlap with each other in the camera view direction, indicating that the horizontal degree and position of the transparent carrier are set in place, otherwise the height and horizontal position of the transparent carrier need to be adjusted.
[0013] As a preferred scheme of the above scheme, the test machine table includes a bottom plate, support columns are arranged at four corners of the bottom plate, and a support assembly for supporting the transparent carrier is arranged on the support columns.
[0014] The test machine table is a frame structure, generally a square frame. The test machine table includes a bottom plate at the bottom. Support columns are fixedly arranged at four corners of the bottom plate. The support columns are connected and fixed by side fixed rods between the bottom ends and the top ends, forming a stable square frame. A connecting rod is arranged between the top ends of the diagonal support columns or between the side fixed rods. A light source plate is fixed on the top of the support column. The light source plate is fixed with the support columns at four corners and is fixed with the connecting rod by a fastener. A support foot is arranged at the bottom end of the support column, which can adjust the balance of the test machine table. A support piece is arranged on each support column. The support piece is used to support the transparent carrier. The support assembly is fixed or adjustable.
[0015] As a preferred scheme of the above scheme, the support assembly includes a blocking strip fixed on the support column. The blocking strip is arranged transversely. A hanging buckle matched with the blocking strip is arranged on the end corner of the transparent carrier.
[0016] The present scheme is a fixed support assembly, which comprises a baffle, the baffle is round or square, the baffle is transversely arranged and fixedly connected on the support column, the baffle is arranged at the same height of the four support columns, the corresponding hanging buckle matched with the baffle is arranged at the four corners of the transparent carrier plate, the hanging buckle is connected on the corner end of the transparent carrier plate through the fastener, the hanging buckle is transversely arranged, the clamping groove matched with the shape of the baffle is arranged at the front end of the hanging buckle, when the transparent carrier plate is placed, the hanging buckle is clamped on the baffle, and the clamping groove is clamped with the baffle. The baffle is arranged at different height positions of the support column to place the transparent carrier plate at different heights.
[0017] As a preferred scheme of the above scheme, the support assembly comprises a support sleeve arranged on the support column, and the baffle is transversely fixed on the support sleeve, and the hanging buckle matched with the baffle is arranged on the corner end of the transparent carrier plate.
[0018] The present scheme is a height-adjustable support assembly, which comprises a support sleeve arranged on the support column and capable of moving up and down, and a baffle transversely arranged on the support sleeve, and the corresponding hanging buckle matched with the baffle is arranged at the four corners of the transparent carrier plate, the hanging buckle is connected on the corner end of the transparent carrier plate through the fastener, the hanging buckle is transversely arranged, the clamping groove matched with the shape of the baffle is arranged at the front end of the hanging buckle, when the transparent carrier plate is placed, the hanging buckle is clamped on the baffle, and the clamping groove is clamped with the baffle. By adjusting the height of the support assembly, the height of the transparent carrier plate can be adjusted, and the balance of the transparent carrier plate can also be fine-tuned by adjusting the height of the support assembly.
[0019] As a preferred scheme of the above scheme, a guide wheel is arranged on at least one side of the support sleeve, a fastening bolt is arranged on the side opposite to the guide wheel, and the front end of the fastening bolt abuts against the support column.
[0020] The present scheme arranges the guide wheel on one side of the support sleeve, or arranges the guide wheel on three sides of the support sleeve, so that the support sleeve moves more smoothly on the support column and does not jam, and the fastening bolt is arranged on one side, which can be a hand-tightening fastening bolt. By tightening the fastening bolt, the fastening bolt tightly abuts against the support column to fix the support sleeve on the support column.
[0021] As a preferred scheme of the above scheme, a guide wheel is arranged on at least one side of the support sleeve, a gear is arranged on the side opposite to the guide wheel, a rack is arranged on the side of the support column opposite to the gear, the gear is engaged with the rack, and a fastening bolt is arranged on one side of the support sleeve, the front end of the fastening bolt abuts against the support column.
[0022] The scheme is further provided with a gear on the side surface of the support sleeve, and a rack is provided on the corresponding side surface of the support column along the height, the gear is engaged with the rack, the support sleeve can be more accurate when moving to adjust the height, especially when the support sleeves are connected through the synchronous rod, so that the multiple support sleeves can better synchronously move to ensure the balance of the transparent carrier plate placed on the support sleeve.
[0023] As a preferred scheme of the above scheme, the synchronous rod is connected between the adjacent support sleeves.
[0024] The scheme is further provided with a gear on the side surface of the support sleeve, and a rack is provided on the corresponding side surface of the support column along the height, the gear is engaged with the rack, the support sleeve can be more accurate when moving to adjust the height, especially when the support sleeves are connected through the synchronous rod, so that the multiple support sleeves can better synchronously move to ensure the balance of the transparent carrier plate placed on the support sleeve.
[0025] The advantages of the utility model are:
[0026] 1. Design multiple transparent carrier plates, chart graphs with different test points on different transparent carrier plates are stacked to form a stacked graph with multiple different distance test points in the vertical viewing angle, since the chart graph sizes of different distances are different, the SFR or MTF algorithm is used to simultaneously calculate the scores of multiple distances, which can facilitate multiple distance focusing and production of test products.
[0027] 2. One focusing and test meets the test requirements of multiple distances, without increasing the process multiple times, reducing the process, improving the work efficiency, and ensuring the production yield.
[0028] 3. The height of the transparent carrier plate is adjustable, which facilitates the height adjustment to meet the test requirements of different distances, and the position of the transparent carrier plate is finely adjusted to ensure the balance of the transparent carrier plate. BRIEF DESCRIPTION OF DRAWINGS
[0029] Figure 1 is a structural schematic view of the utility model.
[0030] Figure 2 is a chart graph on each transparent carrier plate in the utility model and a stacked chart graph.
[0031] Figure 3 is a first structural schematic view of a support assembly in the utility model.
[0032] Figure 4 is a second structural schematic view of a support assembly in the utility model.
[0033] Figure 5This is a schematic diagram of the third structure of the support component in this utility model.
[0034] Figure 6 This is a side view of the second type of support component in this utility model.
[0035] Figure 7 This is a cross-sectional schematic diagram of the second type of support component in this utility model.
[0036] Figure 8 This is a cross-sectional schematic diagram of the third type of support component in this utility model.
[0037] 1-Testing machine platform 11-Base plate 12-Support column 121-Guide groove 13-Support foot 2-Light source plate 3-Camera 4-Transparent carrier plate 41-Hook 411-Card slot 42-Clamp 5-Support assembly 51-Stop bar 52-Support sleeve 53-Guide wheel 54-Fastening bolt 55-Gear 56-Rack. Detailed Implementation
[0038] The technical solution of this utility model will be further described below through embodiments and in conjunction with the accompanying drawings.
[0039] Example 1:
[0040] This embodiment provides a camera multi-distance focusing and testing device, such as... Figure 1 As shown, the test equipment includes a test platform 1, a light source plate 2 is set on the top of the test platform, a camera 3 is installed in the middle of the bottom of the test platform 1, and multiple layers of height-adjustable transparent carrier plates 4 are set inside the test platform 1, with charts set on the transparent carrier plates 4.
[0041] In a preferred embodiment, the testing machine includes a base plate 11, with support columns 12 at each of the four corners. Support components 5 for supporting the transparent carrier plate 4 are mounted on the support columns 12. Specifically, the testing machine adopts a square frame structure. The bottom is connected to each other via side fixing rods to form a bottom support. The base plate 11 is mounted on the bottom support and is fixed to it with bolts. Support columns 12 are fixed at each of the four corners of the base plate. The support columns can be made of profiles and are fixed to the bottom support by bolts passing through the base plate 11. The tops of the support columns 12 are connected and fixed together via side fixing rods to form a stable square frame. Connecting rods are provided between the tops of the diagonally opposite support columns. The light source plate 2 is located at the top of the support columns. The four corners of the light source plate 2 are fixed to the four corner support columns with bolts and are also fixed to the connecting rods placed horizontally on top with fasteners, thereby fixing the light source plate 2 to the top of the testing machine. A support foot 13 is provided at the bottom of the support column 12. This support foot is a threaded adjustable support foot, which can adjust the balance of the testing machine.
[0042] Supporting assembly 5 is arranged on supporting column 12, and is used to support transparent carrier plate 4 so that the transparent carrier plate is installed at a set height. The supporting assembly in this embodiment adopts a fixed structure, as shown in Figure 3 The supporting assembly includes a blocking strip 51 fixed on the side of supporting column 12, and the blocking strip adopts a round rod shape and is arranged transversely and fixed to supporting column 12 by means of threaded connection or welding. Correspondingly, blocking strips 51 are fixed at the same height on the four supporting columns 12, and transparent carrier plate 4 is placed on blocking strips 51 for fixation. Specifically, a hanging buckle 41 is arranged at each corner of transparent carrier plate 4, and the hanging buckle can be clamped on transparent carrier plate 4 by means of a clamping buckle 42, as shown in Figure 4 A semicircular clamping groove 411 is arranged on the front end of hanging buckle 41, and the semicircular clamping groove 411 cooperates with the shape of blocking strip 51. When transparent carrier plate 4 is placed, hanging buckle 41 is placed on blocking strip 51, and clamping groove 411 is clamped with blocking strip 51. In this embodiment, blocking strips 51 are fixed at multiple height positions on supporting column 12, so that transparent carrier plate 4 is placed at different heights.
[0043] Transparent carrier plate 4 is arranged in multiple layers in test machine 1. In this embodiment, three layers of transparent carrier plates are arranged, and the distance of each layer of transparent carrier plate to the camera is adjusted according to the required test distance. Preferably, the transparent carrier plate adopts a glass carrier plate, and a chart is arranged on each glass carrier plate, and the charts of the glass carrier plates are staggered with each other. In addition, the same position calibration pattern is arranged on each transparent carrier plate.
[0044] The chart test points on different transparent carrier plates are staggered with each other. The chart can adopt horizontal and vertical lines or black blocks to adapt to the calculation score of different algorithms. Due to the transparent property of the transparent carrier plate, according to the field of view angle of the camera, each chart is superimposed to form a chart in the field of view angle of the camera. The size of the chart at different distances is different, and the SFR or MTF algorithm is used to calculate the score at multiple distances. As shown in Figure 2 The three carrier plates arranged vertically on the left are three layers of transparent carrier plates, and the square is used as the chart on the transparent carrier plate, and the square test points of the three charts are staggered with each other, and the center point is not included in the test. Cross and horizontal bars are used as calibration patterns at the same positions on the four sides of the chart of the glass carrier plate. As shown in Figure 2 As shown in the transparent carrier plate on the right, the chart on the glass carrier plate is a new chart formed by superimposing the charts of the three glass carrier plates on the left.
[0045] In the test, adjust the transparent carrier height of multiple chart graphs to the required test distance of the load, design the chart graph according to the requirements of the camera, for example, only 2 distances are required, only 2 distances need to be adjusted and chart graph designed, use SFR or MTF algorithm to capture and calculate the score of the calculation block, set different distance calculation block score specification requirements according to the requirements, and adjust the lens to meet the test score specification requirements of multiple distances at the same time during focusing.
[0046] Embodiment 2:
[0047] The embodiment discloses a second embodiment structure of a camera multi-distance focusing and testing device. The device comprises a testing machine 1, a light source plate 2 is arranged on the top of the testing machine, a camera 3 is installed in the middle of the bottom of the testing machine 1, and a plurality of layers of height-adjustable transparent carriers 4 are arranged in the testing machine 1, and the transparent carriers 4 are provided with chart graphs.
[0048] Specifically, the testing machine comprises a bottom plate 11, support columns 12 are arranged at the four corners of the bottom plate, and support assemblies 5 for supporting the transparent carriers 4 are arranged on the support columns 12. Specifically, the testing machine adopts a square frame structure, the bottom is connected to each other by side fixing rods to form a bottom support, the bottom plate 11 is arranged on the bottom support, and the bottom plate is fixed on the bottom support by bolts. The support columns 12 are fixed at the four corners of the bottom plate, and the support columns can adopt profiles, and are fixed on the bottom support by bolts penetrating the bottom plate 11. The top ends of the support columns 12 are connected and fixed by side fixing rods to form a stable square frame. The connecting rods are arranged between the top ends of the diagonal support columns, the light source plate 2 is located on the top of the support columns, the light source plate 2 is fixed on the four corners of the support columns by bolts, and is further fixed on the connecting rods horizontally arranged on the top by fasteners, so that the light source plate 2 is fixed on the top of the testing machine. The support feet 13 are arranged on the bottom ends of the support columns 12, and the support feet are screw-adjustable support feet, which can adjust the balance of the testing machine.
[0049] The support assemblies 5 are arranged on the support columns 12, and the support assemblies are used for supporting the transparent carriers 4, so that the transparent carriers are installed at a set height. The support assemblies of the embodiment adopt an adjustable structure, for example, Figure 4 and Figure 6As shown, the support assembly 5 includes a support sleeve 52 sleeved on the support column 12, and a blocking strip is transversely fixed on the support sleeve. The blocking strip is in the shape of a round rod and is fixed on the support sleeve 52 by welding. Correspondingly, a support sleeve is arranged on each of the other support columns, and the support sleeves are fixed at the same height. The transparent carrier plate 4 is placed on the blocking strip 51 of the support strip for fixation. In order to synchronize the movement of the support sleeves, a synchronization rod is arranged between adjacent support sleeves to connect the two support sleeves on both sides. Further, three synchronization rods can be connected between the four support sleeves to connect the four support strips into one body for synchronous movement.
[0050] As shown in the figure, Figure 7 A guide wheel 53 is arranged on the inner side of one side surface of the support sleeve 52. Specifically, a wheel groove is formed on the side surface of the support sleeve, and the guide wheel is arranged in the wheel groove through a rotating shaft, and a part of the guide wheel protrudes out of the wheel groove. A guide groove 121 is formed on the side surface of the support column 12 corresponding to the guide wheel, and the protruding part of the guide wheel 53 is located in the guide groove. The guide wheel is in contact with the bottom of the guide groove. Preferably, two guide wheels 53 are arranged side by side on the same side surface of the support sleeve 52. When the support sleeve moves, the rolling of the guide wheels makes the movement of the support sleeve on the support column 52 more smooth and does not cause jamming. In addition to the arrangement of the guide wheels on one side surface of the support sleeve in this embodiment, guide wheels can also be arranged on three side surfaces of the support sleeve respectively. The arrangement structure of the guide wheels on each side surface is consistent with the above structure. The three guide wheels form a semi-enclosed structure on the support column 12, which is more convenient for the upward and downward movement of the support sleeve. A fastening bolt 54 is threadedly connected to the other side surface of the support sleeve opposite to the guide wheels. A guide groove 121 is also formed on the side surface of the support column 12 corresponding to the fastening bolt. The front end of the fastening bolt is in abutment with the support column. After the fastening bolt is tightened, the support sleeve is fixed with the support column.
[0051] The transparent carrier plate 4 is arranged in multiple layers in the test machine 1. Preferably, three layers of transparent carrier plates are arranged in this embodiment. The distance of each layer of transparent carrier plate to the camera is adjusted according to the required test distance. Preferably, the transparent carrier plate is a glass carrier plate. A chart is arranged on each glass carrier plate, and the charts of the glass carrier plates are staggered with each other. In addition, the same position calibration pattern is arranged on each transparent carrier plate.
[0052] The chart test points on different transparent carrier plates are staggered with each other. The chart can adopt horizontal and vertical lines or black blocks to adapt to the calculation scores of different algorithms. Due to the transparent property of the transparent carrier plate, according to the field of view angle of the camera, each chart is superimposed in the field of view angle of the camera to form a chart. The sizes of the charts at different distances are different, and the SFR or MTF algorithm is used to calculate the scores at multiple distances at the same time. As shown in the figure, Figure 2As shown, the three vertically arranged glass plates on the left are three layers of transparent plates, and the chart graphs on the transparent plates are all squares. The test points of the three chart graphs are staggered, and the center point is not included in the test. The four sides of the chart graph on the glass plate are respectively provided with horizontal bars and crosses as calibration patterns. Figure 2 As shown in the transparent plate in the middle right, the chart graph on the glass plate is a new chart graph formed by superimposing the chart graphs of the three glass plates on the left.
[0053] During the test, the height of the multiple chart graph transparent plates is adjusted to the required test distance, the chart graph is designed according to the requirements of the camera, for example, only 2 distances are required, only 2 distances need to be adjusted and chart graph designed, and the score is calculated by using SFR or MTF algorithm to capture the calculation block. According to the requirements, set different distance calculation block score specification requirements, and adjust the lens to meet the test score specification requirements of multiple distances at the same time during focusing.
[0054] Embodiment 3
[0055] The embodiment discloses a third embodiment structure of a camera multi-distance focusing and testing device. The device comprises a testing machine 1, a light source plate 2 is arranged on the top of the testing machine, a camera 3 is installed in the middle of the bottom of the testing machine 1, and a plurality of height-adjustable transparent plates 4 are arranged in the testing machine 1. The transparent plate 4 is provided with a chart graph.
[0056] In this embodiment, the support assembly adopts an adjustable structure, as shown in Figure 5 and Figure 8 As shown, the support assembly 5 comprises a support sleeve 52 sleeved on the support column 12, and a blocking strip is fixed transversely on the support sleeve. The blocking strip is in the shape of a round rod and is fixed on the support sleeve 52 by welding. Correspondingly, support sleeves are arranged on the other support columns, and the support sleeves are fixed at the same height. The transparent plate 4 is placed on the blocking strip 51 of the support strip for fixation. In order to synchronize the movement of the support sleeves, a synchronization rod is arranged between adjacent support sleeves to connect the two support sleeves on both sides. Further, three synchronization rods can be connected between the four support sleeves to connect the four support strips into one body for synchronous movement.
[0057] As shown in Figure 8As shown, a guide wheel 53 is arranged on the inner side of one side of the support sleeve 52, specifically, a wheel groove is formed on the side of the support sleeve, and the guide wheel is arranged in the wheel groove through a rotating shaft, and a part of the guide wheel protrudes out of the wheel groove. A guide groove 121 is formed on the side of the support column 12 corresponding to the guide wheel, and the protruding part of the guide wheel 53 is located in the guide groove, and the guide wheel is in contact with the bottom of the guide groove. Preferably, two guide wheels 53 are arranged side by side on the same side of the support sleeve 52, and the support sleeve moves more smoothly when the guide wheels roll, and does not jam. A gear 55 is arranged on the inner side of the other side of the support sleeve opposite to the guide wheel, specifically, a wheel groove is formed on the side, and the gear is arranged in the wheel groove through a rotating shaft. A guide groove is formed on the side of the support column opposite to the gear, and a rack 56 is arranged on the bottom surface of the guide groove. The gear and the rack are engaged, the support sleeve can be more accurate when adjusting the height, especially when the support sleeves are connected by a synchronous rod, so that the multiple support sleeves can move synchronously to ensure the balance of the transparent carrier plate placed on the support sleeves. A fastening bolt is arranged on the other side of the support sleeve, and the front end of the fastening bolt abuts against the support column. The front end of the fastening bolt abuts against the support column, and the support sleeve is fixed with the support column after the fastening bolt is tightened.
[0058] The test platform includes a bottom plate 11, support columns 12 are arranged at four corners of the bottom plate, and support assemblies 5 for supporting transparent carrier plates 4 are arranged on the support columns 12. Specifically, the test platform adopts a square frame structure, the bottom is connected to each other by side fixing rods to form a bottom support, the bottom plate 11 is arranged on the bottom support and fixed on the bottom support by bolts. The support columns 12 are fixed at four corners of the bottom plate, and can adopt profiles and be fixed with the bottom support by bolts penetrating through the bottom plate 11. The top ends of the support columns 12 are connected and fixed by side fixing rods to form a stable square frame. A connecting rod is arranged between the top ends of the diagonal support columns, and the light source plate 2 is located on the top of the support columns and fixed on the top of the test platform by bolts and fasteners and the connecting rod transversely arranged on the top, so as to fix the light source plate 2 on the top of the test platform. The support feet 13 are arranged on the bottom ends of the support columns 12, and are screw adjustable support feet, which can adjust the balance of the test platform.
[0059] The transparent carrier plates 4 are arranged in multiple layers in the test platform 1, and preferably three layers of transparent carrier plates are arranged in the embodiment, and the distances from the transparent carrier plates to the camera are adjusted according to the required test distance. Preferably, the transparent carrier plates adopt glass carrier plates, and charts are arranged on the glass carrier plates, and the charts of the glass carrier plates are staggered with each other, and calibration patterns are also arranged on the transparent carrier plates at the same positions.
[0060] The chart test points on different transparent carriers are staggered with each other, and the chart can adopt horizontal and vertical lines or black blocks to adapt to the calculation score of different algorithms. Due to the transparent property of the transparent carrier, according to the field of view of the camera, each chart is superimposed to form a chart in the field of view of the camera, and the size of the chart at different distances is different, and the SFR or MTF algorithm is used to calculate the score at multiple distances. Figure 2 As shown in the left vertical arrangement of three carriers, the three carriers are three layers of transparent carriers, and the square is used as the chart on the transparent carrier, and the square test points of the three charts are staggered with each other, and the center point is not included in the test. The horizontal bars and crosses are used as the calibration patterns at the same positions of the four sides of the glass carrier chart. As shown in the right transparent carrier, Figure 2 The chart on the glass carrier is a new chart formed by superimposing the charts of the left three glass carriers.
[0061] During the test, the height of the multiple chart transparent carriers is adjusted to the required test distance, the chart is designed according to the requirements of the camera, for example, only 2 distances are required, only 2 distances need to be adjusted and chart designed, the SFR or MTF algorithm is used to capture the calculation block to calculate the score, and the score specification requirements of different distance calculation blocks are set according to the requirements. When focusing, the lens is adjusted to meet the test score specification requirements of multiple distances at the same time.
[0062] The specific embodiments described herein are merely illustrative of the spirit of the present application. Those skilled in the art of the present application can make various modifications or supplements to the described specific embodiments or use similar ways to replace them, but will not deviate from the spirit of the present application or exceed the scope defined by the appended claims.
[0063] Although the terms such as test machine, base plate, support column, guide groove, etc. are used frequently herein, the possibility of using other terms is not excluded. The use of these terms is only for the convenience of describing and explaining the essence of the present application; any interpretation of them as any kind of additional limitation is contrary to the spirit of the present application.
Claims
1. A camera multi-distance focusing and testing apparatus, characterized by: The test machine includes a light source plate arranged on the top of the test machine, a camera is arranged on the middle of the bottom of the test machine, and a plurality of transparent carrier plates with adjustable height are arranged in the test machine.
2. A camera multi-distance focusing and testing device according to claim 1, characterized in that The chart images on the plurality of transparent carrier plates are staggered with each other.
3. A camera multi-distance focusing and testing device according to claim 1 or 2, characterized in that The transparent carrier plate is a glass carrier plate.
4. The camera multi-distance focusing and testing device according to claim 1 or 2, characterized in that A calibration pattern is arranged on each transparent carrier plate at a corresponding same position.
5. A camera multi-distance focusing and testing device according to claim 1, characterized in that The test machine includes a bottom plate, support columns are arranged at four corners of the bottom plate, and a support assembly for supporting the transparent carrier plate is arranged on the support column.
6. A camera multi-distance focusing and testing device according to claim 5, characterized in that The support assembly includes a blocking strip fixed on the support column, the blocking strip is arranged transversely, and a hanging buckle matched with the blocking strip is arranged on the end corner of the transparent carrier plate.
7. A camera multi-distance focusing and testing device according to claim 5, characterized in that The support assembly includes a support sleeve sleeved on the support column, the blocking strip is fixed transversely on the support sleeve, and the hanging buckle matched with the blocking strip is arranged on the end corner of the transparent carrier plate.
8. The camera multi-distance focusing and testing device according to claim 7, wherein a guide wheel is arranged on at least one side of the support sleeve, a fastening bolt is arranged on the side opposite to the guide wheel, and the front end of the fastening bolt abuts against the support column.
9. A camera multi-distance focusing and testing device according to claim 7, characterized in that A guide wheel is arranged on at least one side of the support sleeve, a gear is arranged on the side opposite to the guide wheel, a rack is arranged on the side opposite to the gear of the support column, the gear is engaged with the rack, a fastening bolt is arranged on one side of the support sleeve, and the front end of the fastening bolt abuts against the support column.
10. A camera multi-distance focusing and testing device according to claim 8 or 9, characterized in that Synchronous rods are connected between adjacent support sleeves.