Multi-diaphragm gray scale response time measuring instrument

Abstract

The utility model belongs to the technical field of optical instrument manufacturing, and particularly relates to a multi-diaphragm gray scale response time measuring instrument which comprises a shell, a CCD electronic lens is arranged on the side wall of the shell, and a photoelectric sensing probe, a small-hole reflector, a data acquisition card, an industrial area-array camera and an optical reflector are arranged in the shell. The pinhole reflector is arranged between the photoelectric sensing probe and the CCD electronic lens through a first driving device, the photoelectric sensing probe is in signal connection with the data acquisition card, and the industrial area-array camera is arranged on one side of the photoelectric sensing probe; when light enters the small-hole reflector from the CCD electronic lens, the light is divided into two beams, one beam enters the photoelectric sensing probe, and the other beam enters a light inlet of the industrial area-array camera after being reflected to the optical reflector through the small-hole reflector. The problem that an image of an existing optical measuring instrument is direct is solved, photoelectric data are transmitted to a data acquisition card after being converted, and then whether acquired data are correct or not or are data meeting preset requirements is determined according to the method is solved.

Description

Technical Field

[0001] The present application belongs to the technical field of optical instrument manufacturing, and specifically relates to a multi-aperture grayscale response time measuring instrument. Background Art

[0002] When optically measuring a product, the image entering the lens is directly converted into data in the data acquisition card, so that when analyzing the data, it is impossible to reverse the data to the image, making it impossible to determine whether the collected data is correct or whether it is the preset data. Utility Model Content

[0003] The purpose of this application is mainly to address the shortcomings of the prior art. By setting up an optical reflector and an industrial area array camera, a multi-aperture grayscale response time measuring instrument is designed, so that when the light enters the pinhole reflector from the CCD electronic lens, it is divided into two beams, one beam enters the photoelectric sensing probe, and then undergoes photoelectric data conversion processing and is transmitted to the data acquisition card; the other beam is reflected by the pinhole reflector to the optical reflector and then enters the industrial area array camera for naked eye observation, thereby solving the problem that the image of the current optical measuring instrument is directly subjected to photoelectric data conversion processing and then transmitted to the data acquisition card, which leads to the problem that it is impossible to determine whether the collected data is correct or whether it is the preset required data.

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

[0005] A multi-aperture grayscale response time measuring instrument comprises a shell, a CCD electronic lens is arranged on the side wall of the shell, a photoelectric sensing probe, a pinhole reflector, a data acquisition card, an industrial area array camera, and an optical reflector are arranged in the shell, the pinhole reflector is arranged between the photoelectric sensing probe and the CCD electronic lens through a first driving device, the photoelectric sensing probe signal is connected to the data acquisition card, and the industrial area array camera is arranged on one side of the photoelectric sensing probe; when light enters the pinhole reflector from the CCD electronic lens, it is divided into two beams, one beam enters the photoelectric sensing probe, and the other beam enters the light inlet of the industrial area array camera after being reflected by the pinhole reflector to the optical reflector.

[0006] Preferably, the pinhole reflector includes a rotating disk and a transparent mirror, the axis of the rotating disk forms an angle of 45 degrees with the axis of the CCD electronic lens, the photoelectric sensing probe is on the extension line of the axis of the CCD electronic lens, a plurality of transparent mirrors with the same area are evenly arranged around the center of the rotating disk, the length from each transparent mirror to the center of the rotating disk is R, the distance from the center of the rotating disk to the axis of the CCD electronic lens is L, satisfying

[0007] Preferably, the first driving device is a first servo motor, and the output shaft of the first servo motor is coaxially fixedly connected to the turntable.

[0008] Preferably, the first servo motor is located on a side of the turntable facing away from the CCD electronic lens.

[0009] Preferably, five transparent mirrors are provided on the turntable.

[0010] Preferably, the optical reflector is parallel to the turntable, and the centers of the optical reflector and the turntable are located on two opposite sides of the axis of the CCD electronic lens.

[0011] Preferably, a photodiode is provided in the housing between the turntable and the photoelectric sensing probe via a second driving device, and the photodiode is on the extension line of the axis of the CCD electronic lens.

[0012] Compared with the prior art, this application has the following beneficial effects:

[0013] 1. The present application adopts the method of setting an optical reflector and an industrial area array camera to design a multi-aperture grayscale response time measuring instrument, so that when the light enters the pinhole reflector from the CCD electronic lens, it is divided into two beams, one beam enters the photoelectric sensing probe, and then undergoes photoelectric data conversion processing and is transmitted to the data acquisition card; the other beam is reflected by the pinhole reflector to the optical reflector and then enters the industrial area array camera for naked eye observation, thereby solving the problem that the image of the current optical measuring instrument is directly transmitted to the data acquisition card after undergoing photoelectric data conversion processing, which leads to the problem that it is impossible to determine whether the collected data is correct or whether it is the preset required data.

[0014] 2. In the present application, since the axis of the turntable is at an angle of 45 degrees to the axis of the CCD electronic lens, one beam of light entering the CCD electronic lens directly penetrates the transparent mirror and hits the photoelectric sensor, while the other beam of light is reflected by the transparent mirror 8 and deviates from the photoelectric sensor and enters the optical reflector, and then enters the industrial area array camera. The purpose of setting the turntable 7 is to allow the user to adjust different transparent mirrors to cooperate with the CCD electronic lens as needed.

[0015] 3. Among the five transparent mirrors in this application, the light emitting angles generated from the CCD electronic lens to the transparent mirror are five viewing angle options of 0.1°, 0.2°, 0.5°, 1° and 2°, respectively, to meet the needs of a larger brightness test range. The first servo motor controls the arbitrary switching of the five viewing angles, making the entire measurement process more automated and more efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1It is a schematic diagram of the structure outside this application;

[0017] Figure 2 It is a schematic diagram of the structure inside the shell in this application;

[0018] Figure 3 For this application Figure 2 The structural diagram on the back;

[0019] Figure 4 A diagram showing the relative position relationship between the small hole reflector, the photoelectric sensing probe and the photodiode in this application;

[0020] Figure 5 It is a schematic diagram of the configuration of the photodiode in this application.

[0021] Among them, 1. Shell; 2. CCD electronic lens; 3. Photoelectric sensor probe; 4. Data acquisition card; 5. Industrial area array camera; 6. Optical reflector; 7. Turntable; 8. Transparent mirror; 9. First servo motor; 10. Photodiode; 11. Second servo motor. DETAILED DESCRIPTION

[0022] like Figure 1-5 As shown, a multi-aperture grayscale response time measuring instrument comprises a shell 1, a CCD electronic lens 2 is arranged on the side wall of the shell 1, a photoelectric sensing probe 3, a pinhole reflector, a data acquisition card 4, an industrial area array camera 5, and an optical reflector 6 are arranged in the shell 1, the pinhole reflector is arranged between the photoelectric sensing probe 3 and the CCD electronic lens 2 through a first driving device, the photoelectric sensing probe 3 is connected to the data acquisition card 4 by signal, and the industrial area array camera 5 is arranged on one side of the photoelectric sensing probe 3; when light enters the pinhole reflector from the CCD electronic lens 2, it is divided into two beams, one beam enters the photoelectric sensing probe 3, and the other beam enters the light inlet of the industrial area array camera 5 after being reflected by the pinhole reflector to the optical reflector 6.

[0023] In this embodiment, when in use, light enters from the CCD electronic lens 2 to the pinhole reflector in the housing 1, and the pinhole reflector divides the light into two beams, one of which penetrates the pinhole reflector and enters the photoelectric sensing probe 3, and then undergoes photoelectric data conversion processing, and then transmits the signal to the high-speed data acquisition card 7, and the other beam of light is reflected by the pinhole reflector to the optical reflector 6, and then reflected again by the optical reflector 6 to enter the industrial area array camera 5, so that the data acquisition card 7 collects data. At the same time, the user can observe where the light entering the CCD electronic lens 2 comes from through the industrial area array camera 5, which is convenient for the user to adjust.

[0024] As a preferred embodiment, the pinhole reflector includes a rotating disk 7 and a transparent mirror 8. The axis of the rotating disk 7 forms an angle of 45 degrees with the axis of the CCD electronic lens 2. The photoelectric sensing probe 3 is on the extension line of the axis of the CCD electronic lens 2. A plurality of transparent mirrors 8 with the same area are evenly arranged on the rotating disk 7 around the center of the rotating disk 7. The length from each transparent mirror 8 to the center of the rotating disk 7 is R. The distance from the center of the rotating disk 7 to the axis of the CCD electronic lens 2 is L, satisfying After such arrangement, since the axis of the turntable 7 is at an angle of 45 degrees to the axis of the CCD electronic lens 2, one beam of light entering the CCD electronic lens 2 directly penetrates the transparent mirror 8 and strikes the photoelectric sensing probe 3, while the other beam of light is reflected by the transparent mirror 8, deviates from the photoelectric sensing probe 3, enters the optical reflector 6, and then enters the industrial area array camera 5. The purpose of setting the turntable 7 is to allow the user to adjust different transparent mirrors 8 to cooperate with the CCD electronic lens 2 as needed.

[0025] As a preferred embodiment, the first driving device is a first servo motor 9, and the output shaft of the first servo motor 9 is coaxially fixedly connected to the turntable 7. In this way, the rotation of the turntable 7 can be automatically adjusted by the first servo motor 9.

[0026] As a preferred embodiment, the first servo motor 9 is located at a side of the turntable 7 facing away from the CCD electronic lens 2. This arrangement can improve the space utilization rate in the housing 1.

[0027] As a preferred embodiment, five transparent mirrors 8 are provided on the turntable 7. The light emitting angles generated by the CCD electronic lens 2 on the transparent mirror 8 are 0.1°, 0.2°, 0.5°, 1° and 2° respectively, which meet the requirements of a larger brightness test range. The first servo motor 9 controls the arbitrary switching of the five viewing angles, so that the whole measurement process is more automated and the measurement is more efficient.

[0028] As a preferred embodiment, the optical reflector 6 is parallel to the turntable 7, and the centers of the optical reflector 6 and the turntable 7 are located on opposite sides of the axis of the CCD electronic lens 2. Such an arrangement improves the space utilization rate inside the housing 1.

[0029] As a preferred mode, a photodiode 10 is also provided between the rotating disk 7 and the photoelectric sensing probe 3 in the housing 1 through a second driving device, and the photodiode 10 is on the extension line of the axis of the CCD electronic lens 2. Specifically, a mounting seat 12 is provided in the housing 1, and a mounting cavity is provided in the mounting seat 12. A through hole 13 penetrating through the opposite sides of the mounting cavity is provided on the side wall of the mounting seat, and the axis of the through hole 13 is colinear with the axis of the CCD electronic lens 2. A second servo motor 11 is provided in the mounting seat 12, and a screw rod 14 is coaxially provided on the output shaft of the second servo motor 11. The photodiode 10 is slidably provided in the mounting seat 12, and a screw hole matching with the screw rod 14 is provided on the photodiode 10, and the screw rod 14 is perpendicular to the axis of the through hole 13. After such a setting, the high-sensitivity photodiode can be moved by the second servo motor 11 to realize the free and fast switching between the grayscale response time measurement and the flicker measurement of the instrument, thereby realizing the integration of the instrument to a greater extent and improving the use value of the instrument.

Claims

1. A multi-aperture grayscale response time measuring instrument, characterized in that: The invention comprises a shell (1), a CCD electronic lens (2) is arranged on the side wall of the shell (1), a photoelectric sensing probe (3), a pinhole reflector, a data acquisition card (4), an industrial area array camera (5), and an optical reflector (6) are arranged inside the shell (1), the pinhole reflector is arranged between the photoelectric sensing probe (3) and the CCD electronic lens (2) through a first driving device, the photoelectric sensing probe (3) is connected to the data acquisition card (4) by signal, and the industrial area array camera (5) is arranged on one side of the photoelectric sensing probe (3); when light enters the pinhole reflector from the CCD electronic lens (2), it is divided into two beams, one beam enters the photoelectric sensing probe (3), and the other beam is reflected by the pinhole reflector to the optical reflector (6) and then enters the light inlet of the industrial area array camera (5).

2. The multi-aperture grayscale response time measuring instrument according to claim 1, characterized in that: The pinhole reflector comprises a rotating disk (7) and a transparent mirror (8); the axis of the rotating disk (7) forms an angle of 45 degrees with the axis of the CCD electronic lens (2); the photoelectric sensing probe (3) is on the extension line of the axis of the CCD electronic lens (2); a plurality of transparent mirrors (8) with the same area are evenly arranged on the rotating disk (7) around the center of the rotating disk (7); the length from each transparent mirror (8) to the center of the rotating disk (7) is R; the distance from the center of the rotating disk (7) to the axis of the CCD electronic lens (2) is L, satisfying 3. The multi-aperture grayscale response time measuring instrument according to claim 2, characterized in that: The first driving device is a first servo motor (9), and the output shaft of the first servo motor (9) is coaxially fixedly connected to the rotating disk (7).

4. The multi-aperture grayscale response time measuring instrument according to claim 3, characterized in that: The first servo motor (9) is located on a side of the turntable (7) facing away from the CCD electronic lens (2).

5. The multi-aperture grayscale response time measuring instrument according to claim 2, characterized in that: The rotating disk (7) is provided with five transparent mirrors (8).

6. The multi-aperture grayscale response time measuring instrument according to claim 2, characterized in that: The optical reflector (6) is parallel to the rotating disk (7), and the centers of the optical reflector (6) and the rotating disk (7) are located on two opposite sides of the axis of the CCD electronic lens (2).

7. The multi-aperture grayscale response time measuring instrument according to claim 2, characterized in that: A photodiode (10) is also provided in the housing (1) between the rotating disk (7) and the photoelectric sensing probe (3) via a second driving device, and the photodiode (10) is on the extension line of the axis of the CCD electronic lens (2).

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