Imaging brightness and chrominance and visual angle analyzer

Abstract

The utility model belongs to the technical field of optical instrument manufacturing, and particularly relates to an imaging brightness and chrominance and visual angle analyzer which comprises a shell, a rotating disc is arranged on the upper surface of the shell, a CCD electronic lens and a conoscopic lens penetrate through the position, deviating from the circle center, of the rotating disc, the distance between the CCD electronic lens and the circle center of the rotating disc is equal to the distance between the conoscopic lens and the circle center of the rotating disc, and a range finder is arranged in the center of the rotating disc. A spectrograph and an RGB camera are arranged in the shell, a through hole matched with the RGB camera and the spectrograph is formed in the upper surface of the shell, the distance between the through hole and the central axis of the rotary disc is equal to the distance between the CCD electronic lens and the central axis of the rotary disc, and a filter switching device matched with the through hole is arranged between the through hole and the RGB camera in the shell. A turntable driving device for driving the turntable is also arranged in the shell; the problem of how to test the optical characteristics of the spectrum, the brightness, the chromaticity and the visual angle of the display screen on one test device is solved.

Description

Technical Field

[0001] This application belongs to the technical field of optical instrument manufacturing, and specifically relates to an imaging brightness, chromaticity, and viewing angle analyzer. Background Art

[0002] With the progress of the times and the development of technology, the display screen industry is developing faster and faster, with increasing demands, and the requirements for the rapid and easy operation of product testing are getting higher and higher. Therefore, there is an urgent need to develop an instrument that can meet the more rapid and stable measurement of the spectral, brightness, chromaticity, and viewing angle optical characteristics of displays by customers. Utility Model Content

[0003] The main purpose of this application is to address the shortcomings of the existing technology. By using a method of driving a CCD electronic lens and a conoscopic lens in cooperation with a spectrometer and an RGB camera through a turntable, an imaging brightness, chromaticity, and viewing angle analyzer is designed, solving the problem of how to test the spectral, brightness, chromaticity, and viewing angle optical characteristics of a display screen on a single test device.

[0004] To achieve the above purpose, the technical solution adopted in this application is:

[0005] An imaging brightness, chromaticity, and viewing angle analyzer, comprising a housing, a CCD electronic lens, a turntable, a conoscopic lens, a spectrometer, an RGB camera, and a rangefinder. The turntable is arranged on the upper surface of the housing. The CCD electronic lens and the conoscopic lens are arranged through the turntable at a position deviating from the center of the circle. The distances from the CCD electronic lens and the conoscopic lens to the center of the turntable are equal. A rangefinder is provided at the center of the turntable. The spectrometer and the RGB camera are arranged inside the housing. Through holes are provided on the upper surface of the housing and are matched with the RGB camera and the spectrometer. The distance from the through holes to the central axis of the turntable is equal to the distance from the CCD electronic lens to the central axis of the turntable. A filter switching device matched with the through holes is provided inside the housing between the through holes and the RGB camera. A turntable driving device for driving the turntable is also provided inside the housing.

[0006] Preferably, a reflector and a quartz optical fiber are also provided inside the housing. The RGB camera and the spectrometer are both fixedly arranged inside the housing. The light inlet of the RGB camera faces the through hole and is located directly below the through hole. The spectrometer is located beside the RGB camera. A reflector is arranged on the inner top wall of the housing through a driver. The path of the driver driving the reflector is at least partially located directly below the through hole. The reflector is located above the filter switching device. The light outlet of the quartz optical fiber is connected to the spectrometer. When the reflector reflects the light entering from the through hole, the light reflected by the reflector enters the light inlet of the quartz optical fiber.

[0007] Preferably, the driver is a cylinder, and a mounting seat is fixedly connected to the free end of the piston rod of the cylinder, and the rearview mirror is arranged on the mounting seat.

[0008] Preferably, the included angle between the mirror surface of the rearview mirror and the end face of the turntable is 45 degrees, and the axis of the light inlet of the quartz optical fiber is parallel to the end face of the turntable; when the rearview mirror reflects the light entering from the through hole, the light inlet of the quartz optical fiber faces the reflecting surface of the rearview mirror.

[0009] Preferably, a photoelectric induction probe is further arranged in the housing, and the light outlet of the quartz optical fiber is connected to the photoelectric induction probe.

[0010] Preferably, the filter switching device includes a gear disk, filters, a first driving gear, and a first servo motor. The gear disk is rotatably arranged on the inner top wall of the housing. The rotation axis of the gear disk is parallel to the rotation axis of the turntable. A plurality of filters are evenly arranged around the center of the gear disk on the gear disk. The first servo motor is arranged in the housing, and the first driving gear is coaxially arranged on the output shaft of the first servo motor. The first driving gear meshes with the gear disk. The distance from the edge of the filter facing the central axis of the gear disk to the central axis of the gear disk is less than the distance from the through hole to the central axis of the gear disk, and the distance from the edge of the filter facing away from the central axis of the gear disk to the central axis of the gear disk is greater than the distance from the through hole to the central axis of the gear disk.

[0011] Preferably, the turntable driving device includes a second servo motor, a second driving gear, and a third driving gear. The turntable is coaxially provided with the third driving gear in the housing. The second servo motor is fixedly arranged in the housing, and the second driving gear is coaxially and fixedly arranged on the output shaft of the second servo motor. The second driving gear meshes with the third driving gear.

[0012] Preferably, the turntable driving device and the filter switching device are respectively located on both sides of the central axis of the turntable.

[0013] Compared with the prior art, the present application has the following beneficial effects:

[0014] 1. The present application adopts a method of driving a CCD electronic lens, a conoscopic lens, a spectrometer, and an RGB camera through a turntable, and designs an imaging brightness, chromaticity, and viewing angle analyzer, which solves the problem of how to test the spectral, brightness, chromaticity, and viewing angle optical characteristics of a display screen on a single test device.

[0015] 2. In this application, the installation base is provided to facilitate the installation of the reflector. The cylinder is mainly used to drive the movement of the reflector, so that when the spectrum needs to be measured, the reflector is located directly below the through hole and the light passing through the through hole is reflected by the reflector to the light inlet of the quartz optical fiber; when pneumatically contracted, the reflector moves away from directly below the through hole, so that the light entering the through hole is directly focused on the image sensor of the RGB camera.

[0016] 3. Since the axes of both the CCD electronic lens and the conoscopic lens are perpendicular to the turntable, that is, the axes of both the CCD electronic lens and the conoscopic lens are parallel to the axis of the through hole. Therefore, in this application, the angle between the mirror surface of the reflector and the end face of the turntable is designed to be 45 degrees, and the axis of the light inlet of the quartz optical fiber is parallel to the end face of the turntable; so when the reflector reflects the light entering from the through hole, the light inlet of the quartz optical fiber faces the reflection surface of the reflector, and further the light passing through the through hole is reflected by the reflector to the light inlet of the quartz optical fiber. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of this application assembled into a single laboratory;

[0018] Figure 2 is a schematic structural diagram of this application assembled into multiple combined laboratories;

[0019] Figure 3 is a schematic structural diagram of this application after separating the main frame and the sub-frame;

[0020] Figure 4 is Figure 3 an enlarged view of part A in

[0021] Figure 5 is a schematic diagram showing the male plug and female plug on the sub-frame;

[0022] Figure 6 is Figure 5 an enlarged view of part B in

[0023] Figure 7 is a schematic structural diagram of the cross-section of the first profile bar in this application.

[0024] Wherein, 1. housing; 2. CCD electronic lens; 3. turntable; 4. conoscopic lens; 5. spectrometer; 6. RGB camera; 7. rangefinder; 8. through hole; 9. reflector; 10. quartz optical fiber; 11. cylinder; 12. installation base; 13. photoelectric induction probe; 14. gear disk; 15. filter; 16. first driving gear; 17. first servo motor; 18. second servo motor; 19. second driving gear; 20. third driving gear. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] As Figure 1-7 shown, an imaging brightness, chromaticity and viewing angle analyzer includes a housing 1, a CCD electronic lens 2, a turntable 3, a conoscopic lens 4, a spectrometer 5, an RGB camera 6, and a rangefinder 7. The turntable 3 is arranged on the upper surface of the housing 1. The CCD electronic lens 2 and the conoscopic lens 4 penetrate through the turntable 3 at positions deviating from the center of the circle. The distances from the CCD electronic lens 2 and the conoscopic lens 4 to the center of the turntable 3 are equal. The rangefinder 7 is arranged at the center of the turntable 3. The spectrometer 5 and the RGB camera 6 are arranged inside the housing 1. A through hole 8 is arranged on the upper surface of the housing 1 and is matched with the RGB camera 6 and the spectrometer 5. The distance from the through hole 8 to the central axis of the turntable 3 is equal to the distance from the CCD electronic lens 2 to the central axis of the turntable 3. A filter switching device matched with the through hole 8 is arranged inside the housing 1 between the through hole 8 and the RGB camera 6. A turntable driving device for driving the turntable 3 is also arranged inside the housing 1. A reflector 9 and a quartz optical fiber 10 are also arranged inside the housing 1. Both the RGB camera 6 and the spectrometer 5 are fixedly arranged inside the housing 1. The light inlet of the RGB camera 6 faces the through hole 8 and is located directly below the through hole 8. The spectrometer 5 is located beside the RGB camera 6. The reflector 9 is arranged on the inner top wall of the housing 1 through a driver. The path of the driver driving the reflector 9 is at least partially located directly below the through hole 8. The reflector 9 is located above the filter switching device. The light outlet of the quartz optical fiber 10 is connected to the spectrometer 5. When the reflector 9 reflects the light entering from the through hole 8, the light reflected by the reflector 9 enters the light inlet of the quartz optical fiber 10.

[0026] In this embodiment, during use, the rangefinder 7 is used to measure the distance between the object to be measured (display) and the CCD electronic lens 2 and the conoscopic lens 4 (specifically, the distance between the display and the upper surface of the housing 1. Since the lengths of the CCD electronic lens 2 and the conoscopic lens 4 are fixed, the distances from the display to the CCD electronic lens 2 and the conoscopic lens 4 are indirectly measured); when multi-view measurement of the object to be measured is required, the turntable driving device drives the turntable 3 to rotate, so that the conoscopic lens 4 is located directly above the through hole 8. At this time, the conoscopic lens 4 cooperates with the RGB camera 6 to perform multi-view measurement on the object to be measured; when it is necessary to measure the spectrum, brightness, chromaticity, uniformity, gray-scale response time, and Flicker of the object to be measured, the turntable driving device drives the turntable 3 to rotate, so that the CCD electronic lens 2 is located directly above the through hole 8. At this time, the image formed by the CCD electronic lens 2 is directly focused on the image sensor of the RGB camera 6; when the driver drives the mirror 9 to be located directly below the through hole 8, the mirror 9 reflects the image formed by the CCD electronic lens 2 and focuses it on the light inlet of the quartz optical fiber 10. Then, the quartz optical fiber 10 transmits the image formed by the CD electronic lens 2 into the spectrometer 5 for spectrum measurement. The filter switching device is mainly used to match the color matching function of the CIE standard observer in the field of view, so that the spectrum, brightness, chromaticity, and viewing angle optical characteristics of the display screen can be tested with one device, making the product testing faster and easier to operate.

[0027] As a preferred method, the driver is a cylinder 11. The free end of the piston rod of the cylinder 11 is fixedly connected with a mounting seat 12, and the mirror 9 is arranged on the mounting seat 12. The setting of the mounting seat 12 facilitates the installation of the mirror 9. The cylinder 11 mainly drives the mirror 9 to move, so that when the spectrum needs to be measured, the mirror 9 is located directly below the through hole 8 and the light passing through the through hole 8 is reflected by the mirror 9 to the light inlet of the quartz optical fiber 10; when the cylinder 11 contracts, the mirror 9 moves away from directly below the through hole 8, so that the light entering the through hole 8 is directly focused on the image sensor of the RGB camera 6.

[0028] As a preferred method, since the axes of both the CCD electronic lens 2 and the conoscopic lens 4 are perpendicular to the turntable 3, that is, the axes of both the CCD electronic lens 2 and the conoscopic lens 4 are parallel to the axis of the through hole 8. Therefore, the angle between the mirror surface of the mirror 9 and the end face of the turntable 3 is designed to be 45 degrees, and the axis of the light inlet of the quartz optical fiber 10 is parallel to the end face of the turntable 3; so when the mirror 9 reflects the light entering from the through hole 8, the light inlet of the quartz optical fiber 10 faces the reflection surface of the mirror 9, and further the light passing through the through hole 8 is reflected by the mirror 9 to the light inlet of the quartz optical fiber 10.

[0029] As a preferred embodiment, a photoelectric induction probe 13 is further disposed in the housing 1, and the light outlet of the quartz optical fiber 10 is connected to the photoelectric induction probe 13. The photoelectric induction probe 13 is used to receive the image formed by the CCD electronic lens 2.

[0030] As a preferred embodiment, the filter switching device includes a gear disk 14, filters 15, a first driving gear 16, and a first servo motor 17. The gear disk 14 is rotatably disposed on the inner top wall of the housing 1. The rotation axis of the gear disk 14 is parallel to the rotation axis of the turntable 3. A plurality of filters 15 are uniformly arranged around the center of the gear disk 14 on the gear disk 14. The first servo motor 17 is disposed in the housing 1. The first driving gear 16 is coaxially disposed on the output shaft of the first servo motor 17. The first driving gear 16 meshes with the gear disk 14. The distance from the edge of the filter 15 facing the central axis of the gear disk 14 to the central axis of the gear disk 14 is less than the distance from the through hole 8 to the central axis of the gear disk 14. The distance from the edge of the filter 15 facing away from the central axis of the gear disk 14 to the central axis of the gear disk 14 is greater than the distance from the through hole 8 to the central axis of the gear disk 14.

[0031] After such a setting, the first servo motor 17 drives the gear disk 14 to rotate, so that different filters 15 can be replaced as needed. The setting of "the distance from the edge of the filter 15 facing the central axis of the gear disk 14 to the central axis of the gear disk 14 is less than the distance from the through hole 8 to the central axis of the gear disk 14, and the distance from the edge of the filter 15 facing away from the central axis of the gear disk 14 to the central axis of the gear disk 14 is greater than the distance from the through hole 8 to the central axis of the gear disk 14" ensures that the filter 15 can be adjusted to be directly below the through hole 8 by the rotation of the gear disk 14.

[0032] As a preferred embodiment, the turntable driving device includes a second servo motor 18, a second driving gear 19, and a third driving gear 20. The turntable 3 is coaxially provided with the third driving gear 20 in the housing 1. The second servo motor 18 is fixedly disposed in the housing 1. The second driving gear 19 is coaxially and fixedly disposed on the output shaft of the second servo motor 18. The second driving gear 19 meshes with the third driving gear 20. In this way, the rotation of the turntable can be adjusted by the second servo motor 18, so as to realize the switching between the CCD electronic lens 2 and the conoscopic lens 4.

[0033] As a preferred embodiment, the turntable driving device and the filter switching device are respectively located on both sides of the central axis of the turntable 3. Such a setting can improve the space utilization rate inside the housing 1.

Claims

1. An imaging brightness, chromaticity and viewing angle analyzer, characterized in that: The invention comprises a housing (1), a CCD electronic lens (2), a turntable (3), a conoscope lens (4), a spectrometer (5), an RGB camera (6), and a rangefinder (7); the turntable (3) is arranged on the upper surface of the housing (1); the CCD electronic lens (2) and the conoscope lens (4) are arranged at a position deviated from the center of the turntable (3); the distances from the CCD electronic lens (2) and the conoscope lens (4) to the center of the turntable (3) are equal; and the turntable (3) A rangefinder (7) is provided at the center of the housing (1), the spectrometer (5) and the RGB camera (6) are arranged in the housing (1), a through hole (8) cooperating with the RGB camera (6) and the spectrometer (5) is provided on the upper surface of the housing (1), the distance from the through hole (8) to the central axis of the rotating disk (3) is equal to the distance from the CCD electronic lens (2) to the central axis of the rotating disk (3), and a spacer (8) is provided in the housing (1) between the through hole (8) and the RGB camera (6) to cooperate with the RGB camera (6) and the spectrometer (5). The housing (1) is provided with a filter switching device that cooperates with the through hole (8); a turntable driving device for driving the turntable (3) is also provided in the housing (1); a reflector (9) and a quartz optical fiber (10) are also provided in the housing (1); the RGB camera (6) and the spectrometer (5) are both fixedly arranged in the housing (1); the light entrance of the RGB camera (6) faces the through hole (8) and is located directly below the through hole (8); the spectrometer (5) is located next to the RGB camera (6); A reflector (9) is arranged on the inner top wall of the housing (1) through a driver, the path of the reflector (9) driven by the driver is at least partially located directly below the through hole (8), the reflector (9) is located above the filter switching device, and the light outlet of the quartz optical fiber (10) is connected to the spectrometer (5); when the reflector (9) reflects light entering from the through hole (8), the light reflected by the reflector (9) enters the light inlet of the quartz optical fiber (10).

2. The imaging brightness, chromaticity and viewing angle analyzer according to claim 1, characterized in that: The driver is a cylinder (11), the free end of the piston rod of the cylinder (11) is fixedly connected to a mounting seat (12), and the reflector (9) is arranged on the mounting seat (12).

3. The imaging brightness, chromaticity and viewing angle analyzer according to claim 1, characterized in that: The angle between the mirror surface of the reflector (9) and the end surface of the turntable (3) is 45 degrees, and the axis of the light entrance of the quartz optical fiber (10) is parallel to the end surface of the turntable (3); when the reflector (9) reflects the light entering from the through hole (8), the light entrance of the quartz optical fiber (10) faces the reflection surface of the reflector (9).

4. The imaging brightness, chromaticity and viewing angle analyzer according to claim 1, characterized in that: A photoelectric sensing probe (13) is also provided in the housing (1), and the light outlet of the quartz optical fiber (10) is connected to the photoelectric sensing probe (13).

5. The imaging brightness, chromaticity and viewing angle analyzer according to claim 1, characterized in that: The filter switching device comprises a gear plate (14), a filter (15), a first driving gear (16), and a first servo motor (17); the gear plate (14) is rotatably arranged on the inner top wall of the housing (1); the rotation axis of the gear plate (14) is parallel to the rotation axis of the rotating disk (3); a plurality of filters (15) are evenly arranged on the gear plate (14) around the center of the gear plate (14); the first servo motor (17) is arranged in the housing (1); and the output shaft of the first servo motor (17) is provided with a first servo motor (17). The first driving gear (16) is coaxially arranged and meshes with the gear plate (14); the distance from the edge of the filter (15) facing the central axis of the gear plate (14) to the central axis of the gear plate (14) is smaller than the distance from the through hole (8) to the central axis of the gear plate (14); and the distance from the edge of the filter (15) facing away from the central axis of the gear plate (14) to the central axis of the gear plate (14) is larger than the distance from the through hole (8) to the central axis of the gear plate (14).

6. The imaging brightness, chromaticity and viewing angle analyzer according to claim 1, characterized in that: The turntable driving device comprises a second servo motor (18), a second driving gear (19), and a third driving gear (20); the turntable (3) is coaxially provided with the third driving gear (20) in the housing (1); the second servo motor (18) is fixed in the housing (1); the second driving gear (19) is coaxially fixed on the output shaft of the second servo motor (18); and the second driving gear (19) is meshed with the third driving gear (20).

7. The imaging brightness, chromaticity and viewing angle analyzer according to claim 1, characterized in that: The turntable driving device and the filter switching device are located on both sides of the central axis of the turntable (3).

Images