Multispectral imaging brightness color analyzer

Abstract

The utility model belongs to the field of optical detection, and particularly relates to a multispectral imaging brightness color analyzer which comprises a shell, a filter replacer, a CCD electronic lens, an optical filter and an RGB camera are arranged in the shell, a light through hole is formed in the top wall of the surface of the shell, and the CCD electronic lens is coaxially arranged at the light through hole in the upper surface of the shell. An RGB camera matched with the CCD electronic lens is arranged under the light through hole in the shell, a filter replacing device matched with the light through hole is arranged between the inner top wall of the shell and the RGB camera in the shell, and a light filter is arranged at the execution end of the filter replacing device. The image formed by the high-resolution CCD electronic lens is focused on the RGB camera after being matched with the optical filter through the filter replacer, so that the spectral brightness and chrominance value of each pixel is calculated from the multispectral image, and the problem that the spectral brightness and chrominance value of each pixel cannot be calculated from the multispectral image by the existing equipment is solved.

Description

Technical Field

[0001] The present application belongs to the field of optical detection, and specifically relates to a multi-spectral imaging brightness and color analyzer. Background Art

[0002] Regarding the analysis of display screen imaging brightness and color, current equipment is unable to calculate the spectral brightness and chromaticity value of each pixel from multispectral images. Utility Model Content

[0003] The purpose of this application is mainly to address the shortcomings of the existing technology. The image formed by a high-resolution CCD electronic lens is focused on an RGB camera through a filter changer and a filter, thereby realizing the calculation of the spectral brightness and chromaticity values ​​of each pixel from a multi-spectral image, thereby solving the problem that current equipment cannot calculate the spectral brightness and chromaticity values ​​of each pixel from a multi-spectral image.

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

[0005] A multi-spectral imaging brightness and color analyzer comprises a shell, wherein a filter changer, a CCD electronic lens, a filter, and an RGB camera are arranged in the shell, a light-through hole is arranged on the top wall of the surface of the shell, the CCD electronic lens is coaxially arranged at the light-through hole on the upper surface of the shell, the RGB camera matched with the CCD electronic lens is arranged in the shell just below the light-through hole, the filter changer matched with the light-through hole is arranged in the shell between the inner top wall of the shell and the RGB camera, and the filter is arranged at the execution end of the filter changer.

[0006] Preferably, the filter changer comprises a driver and a rotating disk, a plurality of mounting through holes are arranged on the rotating disk around the center of the rotating disk, and one of the optical filters is arranged in each of the mounting through holes.

[0007] Preferably, the rotating disk includes N coaxial rotating disk units, each of the rotating disk units is provided with a plurality of mounting through holes around its center, the driver can control the rotation of each of the rotating disk units individually, and N is a natural number greater than 1.

[0008] Preferably, the driver is a first motor, and the output shaft of the first motor is drivingly connected to the rotating disk.

[0009] Preferably, the driver includes N second motors, a driving gear is coaxially arranged on the output shaft of each second motor, a plurality of teeth are arranged on the circumferential surface of each turntable unit, and a driving gear on the second motor meshes with one turntable unit.

[0010] Preferably, N second motors are arranged around the rotating disk, the distance between each second motor and the central axis of the rotating disk is equal, and a distance is preset between any two second motors.

[0011] Preferably, each of the turntable units is provided with 16 mounting through holes.

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

[0013] 1. The present application uses a high-resolution CCD electronic lens to form an image, which is focused on an RGB camera through a filter changer and a filter, thereby realizing the calculation of the spectral brightness and chromaticity value of each pixel from a multispectral image, thereby solving the problem that current equipment cannot calculate the spectral brightness and chromaticity value of each pixel from a multispectral image.

[0014] 2. This application uses N coaxial turntable units to install more filters in a small space, so that users have more adjustment methods in actual applications.

[0015] 3. The RGB camera in this application uses a scientific research-grade image sensor. Its built-in chip integrates double-layer semiconductor cooling and dark current noise control technology, making high-speed and high-sensitivity image processing possible. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0017] Figure 2 for Figure 1 The schematic diagram of the structure after the CCD lens is removed;

[0018] Figure 3 is a schematic diagram of the structure inside the housing in the first embodiment;

[0019] Figure 4 is a schematic diagram of the structure inside the housing in the second embodiment;

[0020] Figure 5 This is a schematic diagram of the structure inside the housing after the filter is removed in the second embodiment.

[0021] Among them, 1. Shell; 2. CCD electronic lens; 3. Filter; 4. RGB camera; 5. Light hole; 6. Mounting hole; 7. Turntable unit; 8. First motor; 9. Second motor; 10. Driving gear. DETAILED DESCRIPTION

[0022] like Figure 1-5As shown, a multispectral imaging brightness and color analyzer comprises a shell 1, wherein a filter changer, a CCD electronic lens 2, a filter 3, and an RGB camera 4 are arranged in the shell 1, a light through hole 5 is arranged on the top wall of the surface of the shell 1, the CCD electronic lens 2 is coaxially arranged at the light through hole 5 on the upper surface of the shell 1, the RGB camera 4 cooperating with the CCD electronic lens 2 is arranged in the shell 1 just below the light through hole 5, a filter changer cooperating with the light through hole 5 is arranged in the shell 1 between the inner top wall of the shell 1 and the RGB camera 4, and the filter 3 is arranged at the execution end of the filter changer.

[0023] In this embodiment, when in use, the CCD electronic lens 2 focuses the image of the object to be measured (display screen) into the RGB camera 4 through the light hole 5 and the filter 3. The user can replace different filters 3 through the filter changer as needed, and can accurately measure the brightness and chromaticity of luminous objects and small-area irregular luminous products that cannot be corrected by the center point spectrometer, thereby realizing the calculation of the spectral brightness and chromaticity value of each pixel from the multi-spectral image. The CCD electronic lens 2 adopts high resolution and has an automatic focusing and aperture adjustment function. The user can achieve higher automation testing requirements through automatic control software.

[0024] The first implementation of the filter changer is as follows: the filter changer comprises a driver and a rotating disk, a plurality of mounting through holes 6 are arranged on the rotating disk around the center of the rotating disk, and a filter 3 is arranged in each mounting through hole 6. This not only realizes more subdivided bands, but also reduces the size of the instrument, making the instrument more compact and lightweight while improving the performance of the instrument.

[0025] Preferably, the driver is a first motor 8, and the output shaft of the first motor 8 is drivingly connected to the rotating disk.

[0026] A second embodiment of the filter changer: the rotating disk includes N coaxial rotating disk units 7, each of which is provided with a plurality of mounting through holes 6 around its center, and N is a natural number greater than 1. The mounting through holes 6 are mainly designed to mount the optical filters 3, so that more optical filters 3 can be mounted in a small space through the N coaxial rotating disk units 7, so that users have more adjustment methods in actual application.

[0027] Preferably, the driver includes N second motors 9, and a driving gear 10 is coaxially arranged on the output shaft of each second motor 9, and a plurality of teeth are arranged on the circumferential surface of each turntable unit 7, and a driving gear 10 on a second motor 9 meshes with a turntable unit 7. That is, one second motor 9 corresponds to one turntable unit 7.

[0028] As a preferred mode, N second motors 9 are arranged around the rotating disk, and the distance between each second motor 9 and the central axis of the rotating disk is equal, and a distance is preset between any two second motors 9. Such a setting mode enables one second motor 9 to drive one rotating disk unit 7, and at the same time, since a distance is preset between any two second motors 9, the second motors 9 will not interfere with each other.

[0029] As a preferred embodiment, each of the turntable units 7 is provided with 16 mounting through holes 6 .

[0030] Of course, it is preferred to set three turntable units 7 and three second motors 9, and both the second motor 9 and the first motor 8 can be servo motors.

Claims

1. A multi-spectral imaging brightness and color analyzer, characterized in that: The invention comprises a housing (1), wherein a filter changer, a CCD electronic lens (2), a filter (3), and an RGB camera (4) are arranged inside the housing (1); a light through hole (5) is arranged on the top wall of the surface of the housing (1); the CCD electronic lens (2) is coaxially arranged at the light through hole (5) on the upper surface of the housing (1); the RGB camera (4) cooperating with the CCD electronic lens (2) is arranged inside the housing (1) just below the light through hole (5); a filter changer cooperating with the light through hole (5) is arranged inside the housing (1) between the inner top wall of the housing (1) and the RGB camera (4); and the filter (3) is arranged at the execution end of the filter changer.

2. A multi-spectral imaging brightness and color analyzer according to claim 1, characterized in that: The filter changer comprises a driver and a rotating disk. A plurality of mounting through holes (6) are arranged on the rotating disk around the center of the rotating disk. One of the optical filters (3) is arranged in each of the mounting through holes (6).

3. A multi-spectral imaging brightness and color analyzer according to claim 2, characterized in that: The rotating disk comprises N coaxial rotating disk units (7), each of the rotating disk units (7) being provided with a plurality of mounting through holes (6) around the center of the circle, and N is a natural number greater than 1.

4. A multi-spectral imaging brightness and color analyzer according to claim 2, characterized in that: The driver is a first motor (8), and the output shaft of the first motor (8) is drivingly connected to the rotating disk.

5. A multi-spectral imaging brightness and color analyzer according to claim 3, characterized in that: The driver comprises N second motors (9), a driving gear (10) is coaxially arranged on the output shaft of each second motor (9), a plurality of teeth are arranged on the circumferential surface of each turntable unit (7), and a driving gear (10) on a second motor (9) is meshed with a corresponding turntable unit (7).

6. A multi-spectral imaging brightness and color analyzer according to claim 5, characterized in that: All the second motors (9) are arranged around the rotating disk, the distance between each second motor (9) and the central axis of the rotating disk is equal, and a distance is preset between any two second motors (9).

7. The multi-spectral imaging brightness and color analyzer according to claim 5, characterized in that: Each of the turntable units (7) is provided with 16 mounting through holes (6).

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