Portable color analyzer with built-in CCD and convenient diaphragm switching

Abstract

The utility model discloses a portable color analyzer with a built-in CCD (Charge Coupled Device) and convenient diaphragm switching, which comprises a shell, and a top cover is assembled on the top surface of the shell to form an accommodating cavity; a lens is vertically mounted on the outer side wall surface of the shell, an XYZ sensor is mounted in the accommodating cavity opposite to the inner end of the lens, a small-hole reflector is mounted on the accommodating cavity between the XYZ sensor and the lens, an image formed by the lens is divided into two paths by the small-hole reflector, one path passes through the small-hole reflector and then is transmitted to the XYZ sensor, and the other path is focused to a camera; the small-hole reflector is inserted into the accommodating cavity from the back surface of the shell from outside to inside; the XYZ sensor is used for measuring the imaging brightness, chromaticity and color temperature, the high color gamut requirement is effectively guaranteed and improved, and the color analyzer is simplified in overall structure, small in size, convenient to carry and good in practicability.

Description

Technical Field

[0001] The utility model relates to the technical field of color analyzers, in particular to a portable color analyzer with a built-in CCD and convenient for diaphragm switching. Background Art

[0002] A color analyzer is an industrial machine that can measure the brightness and color of LCD monitors and various other display devices at a speed of up to 20 times per second.

[0003] Existing color analyzers all use silicon photocells equipped with RGB filters as sensors to measure and analyze optical parameters. Such sensors have large errors when equipped with RGB human eye visual function filters (generally can only match the f1 value of 5% to 10%). Under the demand for high color gamut of today's LCD products, existing color analyzers are difficult to meet the requirements.

[0004] In addition, existing color analyzers are generally large in size and difficult to carry, and their internal structures are relatively complex. The adjustment of the aperture position is a bolt-detachable structure, which is very inconvenient to operate. Utility Model Content

[0005] To solve the above problems, the present application provides a portable color analyzer with a rational structure, a built-in CCD and convenient aperture switching, thereby effectively ensuring and improving the high color gamut requirements, and the overall structure of the color analyzer is simplified, the size is compact, easy to carry, and practical.

[0006] The technical solution adopted by the utility model is as follows:

[0007] A portable color analyzer with a built-in CCD and convenient diaphragm switching comprises a shell, wherein a top cover is mounted on the top surface of the shell to form a housing cavity; a lens is vertically mounted on the outer wall of the shell, an XYZ sensor is mounted in the housing cavity facing the inner end of the lens, a pinhole reflector is mounted on the housing cavity between the XYZ sensor and the lens, an image formed by the lens is divided into two paths by the pinhole reflector, one path is transmitted to the XYZ sensor after passing through the pinhole reflector, and the other path is focused to a camera; the pinhole reflector is inserted into the housing cavity from the outside to the inside from the back of the shell.

[0008] As a further improvement of the above technical solution:

[0009] It also includes a support block, which is locked and fixed on the inner bottom surface of the shell, and the XYZ sensor is supported and installed on the side of the support block; the XYZ sensor and the small hole reflector are arranged at two opposite ends of the support block.

[0010] The support block is provided with a through hole which passes through the small hole on the small hole reflector to the input end of the XYZ sensor. An electric slide is installed on the support block between the small hole reflector and the XYZ sensor, and the through hole is switched on and off by the electric slide.

[0011] The electric slide is provided with two sliding positions, position one and position two; when located at position one, the through hole is connected, and a passage is formed between the small hole on the small hole reflector and the input end of the XYZ sensor; when located at position two, the through hole is blocked, and the image passing through the small hole of the small hole reflector is connected to the silicon photodiode via position two.

[0012] The end face of the support block is arranged as an inclined surface which matches with the small hole reflector; an inverted L-shaped limit block is installed on the top face of the support block, a groove is provided on the inner side face of the limit block facing the support block, a base is installed on the shell directly below the limit block, an upward slot is provided on the top face of the base, and the small hole reflector is limitedly mounted between the groove and the slot.

[0013] The bottom surface of the base extends circumferentially to form a flange, and a plug hole is opened through the bottom surface of the shell, and the outer opening of the plug hole is concave to form a countersunk hole; the base is inserted into the plug hole from the outside to the inside, and the flange is mounted on the countersunk hole, and the flange is locked to the countersunk hole by an external fastener; the lower part of the small hole reflector is screwed on the base.

[0014] An optical reflector is arranged between the pinhole reflector and the camera, and the optical reflector is installed at the inner corner of the shell; the camera is arranged close to the inner wall of the shell, and the output end of the camera forms an interface on the side wall of the shell for easy external connection.

[0015] It also includes a main board arranged along the length direction of the camera, and the main board is fixed inside the shell by a support.

[0016] The utility model also comprises a power supply, which is arranged in close contact with the inner wall of the shell and is fixed inside the shell via a press-fit block with an inverted L-shaped structure.

[0017] A display screen is also installed on the side wall surface of the shell.

[0018] Compared with the prior art, the utility model has the following beneficial effects:

[0019] The utility model adopts XYZ sensor as the imaging brightness, chromaticity and color temperature measurement, which effectively guarantees and improves the use demand of high color gamut, and the overall structure of the color analyzer is simplified, the size is compact, easy to carry and practical;

[0020] The utility model also has the following advantages:

[0021] The color analyzer is equipped with a camera to facilitate users to intuitively and accurately locate the test area, helping to improve the test accuracy.

[0022] The pinhole reflector can be replaced and installed quickly and easily, realizing the rapid customization of the aperture. It is easy to operate and labor-saving, and can accurately match user needs, improving applicability and flexibility.

[0023] The color analyzer of the utility model is highly integrated and has a small overall size of about 48*60*100 mm, which is convenient for users to carry or use alone. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the structure of the utility model (top cover omitted).

[0025] Figure 2 This is a schematic diagram of the installation of the XYZ sensor and the pinhole reflector of the utility model.

[0026] Figure 3 This is an exploded view of the installation of the small hole reflector of the utility model.

[0027] Figure 4 The utility model is a schematic diagram of the installation of the electric slide on the support block.

[0028] Figure 5 The utility model is a schematic diagram of the insertion of a small hole reflector on the shell.

[0029] Figure 6 This is a schematic diagram of the installation of the power supply in the housing of the utility model.

[0030] Figure 7 It is a schematic diagram of the installation of the mainboard in the housing of the utility model.

[0031] Among them: 1. Lens; 2. Shell; 3. Power supply; 4. XYZ sensor; 5. Display screen; 6. Main board; 7. Camera; 8. Optical reflector; 9. Pinhole reflector;

[0032] 20. Inner step; 21. Insertion hole; 22. Countersunk hole; 23. Boss;

[0033] 30. Pressing block;

[0034] 40, support block; 41, electric slide; 411, position one; 412, position two;

[0035] 60, support; 61, protrusion;

[0036] 91. base; 92. limit block; 910. slot; 911. flange; 920. groove. DETAILED DESCRIPTION

[0037] The specific implementation of the present utility model is described below in conjunction with the accompanying drawings.

[0038] like Figure 1 and Figure 2 As shown, the portable color analyzer with built-in CCD and convenient aperture switching of this embodiment includes a shell 2, and the top surface of the shell 2 is equipped with a top cover to form a accommodating cavity; a lens 1 is vertically installed on the outer wall of the shell 2, an XYZ sensor 4 is installed in the accommodating cavity facing the inner end of the lens 1, and a pinhole reflector 9 is installed on the accommodating cavity between the XYZ sensor 4 and the lens 1. The pinhole reflector 9 divides the image formed by the lens 1 into two paths, one path passes through the pinhole reflector 9 and is transmitted to the XYZ sensor 4, and the other path is focused to the camera 7; the pinhole reflector 9 is inserted into the accommodating cavity from the back of the shell 2 from the outside to the inside.

[0039] In this embodiment, the XYZ sensor 4 is used for imaging brightness, chromaticity and color temperature measurement, which effectively guarantees and improves the use requirements of high color gamut, and the overall structure of the color analyzer is simplified and compact.

[0040] In this embodiment, the color analyzer is equipped with a camera 7 to facilitate the user to intuitively and accurately locate the test area, thereby helping to improve the test accuracy and precision.

[0041] In this embodiment, the pinhole reflector 9 can be quickly and conveniently replaced and installed, which enables rapid customization of the aperture, is easy to operate and labor-saving, can accurately match user needs, and improves applicability and flexibility of use.

[0042] It also includes a support block 40, which is locked and fixed on the inner bottom surface of the shell 2, and the XYZ sensor 4 is supported and installed on the side of the support block 40; the XYZ sensor 4 and the small hole reflector 9 are arranged at opposite ends of the support block 40.

[0043] In this embodiment, the XYZ sensor 4 is stably installed via the support block 40 , and the relative position relationship between the XYZ sensor 4 and the pinhole reflector 9 after installation is effectively guaranteed, thereby effectively ensuring the stability and reliability of the installation structure.

[0044] A through hole is provided on the support block 40, which passes through the small hole on the small hole reflector 9 to the input end of the XYZ sensor 4. An electric slide 41 is installed on the support block 40 located between the small hole reflector 9 and the XYZ sensor 4. The electric slide 41 switches the through hole on and off, thereby realizing the selection of whether to use the XYZ sensor 4 for measurement.

[0045] like Figure 4As shown, two sliding positions, position one 411 and position two 412, are provided on the electric slide 41; when located at position one 411, the through hole is connected, and a passage is formed between the small hole on the small hole reflector 9 and the input end of the XYZ sensor 4; when located at position two 412, the through hole is blocked, and the image passing through the small hole of the small hole reflector 9 is connected to the silicon photodiode via position two 412, and the silicon photodiode can be used for flicker measurement.

[0046] In this embodiment, by disposing the electric slide 41 on the support block 40, the switching use of the XYZ sensor 4 or the silicon photodiode for detection is realized, thereby improving the applicability and flexibility of use.

[0047] like Figure 3 As shown, the end face of the support block 40 is arranged as an inclined surface adapted to fit with the pinhole reflector 9; an inverted L-shaped limit block 92 is installed on the top face of the support block 40, a groove 920 is provided on the inner side face of the limit block 92 facing the support block 40, a base 91 is installed on the shell 2 directly below the limit block 92, an upward slot 910 is provided on the top face of the base 91, and the pinhole reflector 9 is limitedly mounted between the groove 920 and the slot 910, so as to realize stable and reliable installation of the pinhole reflector 9.

[0048] like Figure 5 As shown, the bottom surface of the base 91 extends circumferentially to form a flange 911, and the bottom surface of the shell 2 is provided with a plug hole 21, and the outer opening of the plug hole 21 is concave to form a countersunk hole 22; the base 91 is inserted into the plug hole 21 from the outside to the inside, and the flange 911 is mounted on the countersunk hole 22, and the flange 911 is locked to the countersunk hole 22 by an external fastener; the lower part of the small hole reflector 9 is screwed to the base 91.

[0049] When installing the pinhole reflector 9, first insert the pinhole reflector 9 into the slot 910 of the base 91 and fix it with screws, then insert the pinhole reflector 9 into the interior through the insertion hole 21 on the shell 2 until the inner end of the pinhole reflector 9 is fitted into the groove 920 of the limit block 92, and then use fasteners to lock the flange 911 of the base 91 into the countersunk hole 22 of the shell 2 to complete the installation of the pinhole reflector 9; the removal method is the opposite of the steps.

[0050] An optical reflector 8 is arranged between the pinhole reflector 9 and the camera 7, and the optical reflector 8 is installed at the inner corner of the shell 2; the camera 7 is arranged close to the inner wall of the shell 2, and the output end of the camera 7 forms an interface on the side wall of the shell 2 for easy external connection; the internal layout is compact, ingenious and reasonable, which helps to reduce the overall volume.

[0051] like Figure 7 As shown, it also includes a main board 6 arranged along the length direction of the camera 7. The main board 6 is fixed inside the housing 2 by a support 60 to achieve reliable installation of the main board 6 in the housing 2.

[0052] In this embodiment, the inner bottom surface of the shell 2 extends upward to form a boss 23, and the support 60 is supported on the boss 23. The support 60 extends outward toward the side of the main board 6 to form a protrusion 61, and the protrusion 61 is against the side of the main board 6; the protrusion 61 is locked and fixed to the main board 6 via fasteners, and the boss 23 is locked and fixed to the support 60 via fasteners, thereby achieving fixed installation of the main board 6 relative to the shell 2.

[0053] like Figure 6 As shown, it also includes a power supply 3, which is arranged in close contact with the inner wall of the shell 2. The power supply 3 is fixed to the inside of the shell 2 via an inverted L-shaped press-fit block 30, which has a simplified structure and is easy and quick to install.

[0054] In this embodiment, the power supply 3 supplies power to the XYZ sensor 4, the display screen 5, the camera 7, etc. The information acquired by the XYZ sensor 4, the camera 7, etc. is transmitted to the main board 6. After analysis and processing, it can be output by the display screen 5 or transmitted to an external component via an external interface.

[0055] A display screen 5 is also installed on the side wall of the housing 2 to realize visualization of the analyzer.

[0056] In this embodiment, the inner edge of the upward opening of the shell 2 may be recessed downward to form an inner step 20, and the top cover may be mounted via the inner step 20, thereby effectively ensuring a consistent appearance after assembly.

[0057] The XYZ sensor 4 in this embodiment is a color sensor based on the CIE color system. A color sensor with an integrated silicon interference filter, such as MIKROE-3061, can be selected. It not only matches the CIE human eye visual function curve, but also has a high dynamic test range of 0.001 to 1,000,000 cd / ㎡, and can measure from low brightness to high brightness with high speed and accuracy.

[0058] The XYZ sensor 4 is combined with the main board 6, and is equipped with automatic temperature compensation and efficient dark light subtraction, which can provide extremely stable measurement performance at different times, temperatures and brightness.

[0059] When in use, the optical signal collected by the lens 1 passes through the pinhole of the pinhole reflector 9 and is focused on the high-precision XYZ sensor 4. The data is transmitted to the main board 6. After analysis and processing, the test results can be displayed on the display screen 5, completing a fast and accurate measurement of the brightness, chromaticity and color temperature of the product. In addition, the optical signal is imaged on the camera 7 through the pinhole on the pinhole reflector 9 and the optical reflector 8, making the test point visible.

[0060] In this embodiment, a standard EF port can be provided on the housing 2 to mount the lens 1, so that the user can select and replace the lens 1 according to actual needs to enrich the application scenarios of the instrument. A close-up lens can also be selected to meet the testing needs of various different spot sizes.

[0061] The color analyzer of the utility model is highly integrated and has a small overall size of about 48*60*100 mm, which is convenient for users to carry or use alone.

[0062] The color analyzer of the utility model is easy to operate, realizes the measurement of imaging brightness, chromaticity and color temperature, effectively guarantees and improves the use demand of high color gamut, and has a simplified overall structure, a compact size, easy to carry and good practicality.

[0063] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0064] The above description is an explanation of the utility model, not a limitation of the utility model. The scope of the utility model is defined by the claims. Any form of modification can be made within the protection scope of the utility model.

Claims

1. A portable color analyzer with built-in CCD and convenient aperture switching, characterized in that: The invention comprises a shell (2), the top surface of which is equipped with a top cover to form a receiving cavity; a lens (1) is vertically mounted on the outer wall of the shell (2); an XYZ sensor (4) is mounted in the receiving cavity facing the inner end of the lens (1); a pinhole reflector (9) is mounted on the receiving cavity between the XYZ sensor (4) and the lens (1); the pinhole reflector (9) divides an image formed by the lens (1) into two paths, one path passes through the pinhole reflector (9) and is then transmitted to the XYZ sensor (4), and the other path is focused to a camera (7); the pinhole reflector (9) is inserted into the receiving cavity from the back of the shell (2) from the outside to the inside.

2. The portable color analyzer with built-in CCD and convenient aperture switching as claimed in claim 1, characterized in that: The invention also comprises a support block (40), the support block (40) is locked and fixed on the inner bottom surface of the housing (2), and the XYZ sensor (4) is supported and installed on the side surface of the support block (40); the XYZ sensor (4) and the pinhole reflector (9) are arranged at two opposite ends of the support block (40).

3. The portable color analyzer with built-in CCD and convenient aperture switching as claimed in claim 2, characterized in that: The support block (40) is provided with a through hole that passes through the small hole on the small hole reflector (9) to the input end of the XYZ sensor (4). An electric slide table (41) is installed on the support block (40) between the small hole reflector (9) and the XYZ sensor (4), and the through hole is switched on and off by the electric slide table (41).

4. The portable color analyzer with built-in CCD and convenient aperture switching as claimed in claim 3, characterized in that: The electric slide (41) is provided with two sliding positions, position one (411) and position two (412); when located at position one (411), the through hole is connected, and a passage is formed between the small hole on the small hole reflector (9) and the input end of the XYZ sensor (4); when located at position two (412), the through hole is blocked, and the image passing through the small hole of the small hole reflector (9) is connected to the silicon photodiode via position two (412).

5. The portable color analyzer with built-in CCD and convenient aperture switching as claimed in claim 2, characterized in that: The end surface of the support block (40) is arranged as an inclined surface adapted to fit with the pinhole reflector (9); a limit block (92) of an inverted L-shaped structure is installed on the top surface of the support block (40); a groove (920) is provided on the inner side surface of the limit block (92) facing the support block (40); a base (91) is installed on the housing (2) directly below the limit block (92); a slot (910) facing upward is provided on the top surface of the base (91); and the pinhole reflector (9) is limitedly mounted between the groove (920) and the slot (910).

6. The portable color analyzer with built-in CCD and convenient aperture switching as claimed in claim 5, characterized in that: The bottom surface of the base (91) extends in the circumferential direction to form a flange (911); the bottom surface of the shell (2) is provided with a plug hole (21) through it; the outer opening of the plug hole (21) is concave to form a countersunk hole (22); the base (91) is inserted into the plug hole (21) from the outside to the inside, the flange (911) is fitted at the countersunk hole (22), and the flange (911) is locked at the countersunk hole (22) by an external fastener; the lower part of the small hole reflector (9) is screwed onto the base (91).

7. The portable color analyzer with built-in CCD and convenient aperture switching as claimed in claim 1, characterized in that: An optical reflector (8) is arranged between the pinhole reflector (9) and the camera (7), and the optical reflector (8) is installed at an inner corner of the housing (2); the camera (7) is arranged close to the inner wall of the housing (2), and an output end of the camera (7) forms an interface on the side wall of the housing (2) for easy external connection.

8. The portable color analyzer with built-in CCD and convenient aperture switching as claimed in claim 1, characterized in that: It also includes a main board (6) arranged along the length direction of the camera (7), and the main board (6) is fixed inside the housing (2) by a support (60).

9. The portable color analyzer with built-in CCD and convenient aperture switching as claimed in claim 1, characterized in that: It also includes a power supply (3), which is arranged in close contact with the inner wall surface of the shell (2), and the power supply (3) is fixed inside the shell (2) via a press-fit block (30) with an inverted L-shaped structure.

10. The portable color analyzer with built-in CCD and convenient aperture switching as claimed in claim 1, characterized in that: A display screen (5) is also installed on the side wall surface of the housing (2).

Images