Multifunctional table type color photometer

Abstract

The utility model discloses a multifunctional table-type color photometer. The multifunctional table-type color photometer comprises an integrating sphere, a light source arranged in the integrating sphere, a reflection measurement module and a transmission measurement module, the integrating sphere is provided with a reflection measuring port and a transmission measuring port; the reflection measuring port is used for placing a reflection measured object; the reflection measurement module comprises a reflector arranged below the integrating sphere, a reflection lens module arranged in the light path direction of the reflector, and a reflection spectrometer arranged in the light path direction of the reflection lens module; the transmission measurement module comprises a cuvette arranged at the transmission measurement port, a lens assembly arranged beside the cuvette, and a projection spectrometer arranged in the light path direction of the lens assembly. The device is suitable for measuring reflection colors or transmission colors of objects in various forms in various application environments, can carry out two modes of transmission measurement and reflection measurement, can meet measurement objects in various forms and different sizes and different working scenes, and is convenient for users to use.

Description

Technical Field

[0001] The utility model relates to the technical field of colorimeter, in particular to a multifunctional desktop colorimeter. Background Art

[0002] A colorimeter is an optical instrument used to digitally measure the color of an object. After years of technological development, various desktop or small handheld colorimeter instruments have emerged. Handheld instruments generally only have a reflection measurement function, which is mainly convenient for on-site color sampling and color toning. Some desktop instruments only measure reflection, while others have both reflection and transmission functions and are mostly used in laboratory environments. However, each has certain limitations. Some transmission measurements are sinking bin-type, and the size of the measured object is limited. Some cannot conveniently measure the reflected color of liquids and powders, some require separate accessory boxes, some cannot adapt to the on-site environment, and some have relatively simple measurement caliber specifications. Utility Model Content

[0003] In view of the problems existing in the prior art, the utility model provides a multifunctional desktop colorimeter that can meet the measurement of more various shapes and sizes of objects, as well as different working scenes. One instrument meets multiple needs and is convenient for users to use.

[0004] In order to achieve the above purpose, the technical solution of the utility model is as follows:

[0005] The utility model provides a multifunctional desktop colorimeter, comprising: an integrating sphere, a light source placed in the integrating sphere, a reflection measurement module, and a transmission measurement module;

[0006] The integrating sphere is provided with a reflection measurement port and a transmission measurement port, and the light emitted by the light source is emitted through the reflection measurement port and the transmission measurement port; the reflection measurement port is used to place the reflective object to be measured;

[0007] The reflection measurement module comprises a reflector placed below the integrating sphere, a reflective lens module placed in the optical path direction of the reflector, and a reflective spectrometer placed in the optical path direction of the reflective lens module;

[0008] The transmission measurement module comprises a cuvette arranged at the transmission measurement port, a lens assembly arranged beside the cuvette, and a projection spectrometer arranged in the light path direction of the lens assembly.

[0009] Preferably, the multifunctional desktop colorimeter further comprises a shell with an accessory drawer, and the shell is further provided with horizontal feet and vertical feet; the integrating sphere, light source, reflection measurement module, and transmission measurement module are all placed in the shell.

[0010] Preferably, a reflection measurement clamp and a transmission measurement clamp are further provided on the housing, wherein the reflection measurement clamp is used to assist in fixing the reflective object to be measured, and the transmission measurement clamp is used to assist in fixing the cuvette.

[0011] Preferably, the shell is also provided with a touch display screen, a stepper motor, and a snap-fastener; the snap-fastener is arranged on the accessory drawer to realize the opening and closing of the accessory drawer by pressing and popping out; the stepper motor is also provided with a photoelectric switch, and the output end of the stepper motor is connected to the reflective lens module to drive the reflective lens module to move.

[0012] Preferably, the reflective lens module comprises a reflective mirror seat, a reflective lens barrel arranged on the reflective mirror seat, and a reflective lens arranged on the reflective lens barrel; the reflective mirror seat is connected to the output end of the stepping motor.

[0013] Preferably, the reflective lens is arranged at one end of the reflective lens barrel, and the reflective spectrometer is arranged at the other end of the reflective lens barrel and is opposite to the reflective lens.

[0014] Preferably, the lens assembly comprises a lens seat, a lens 1 and a lens 2 arranged on the lens seat, and a transmission sliding compartment cover slidably connected to the lens seat.

[0015] Preferably, the aperture of lens one is larger than that of lens two; lens one and lens two are sequentially arranged at one end of the lens holder, and the projection spectrometer is arranged at the other end of the lens holder and is opposite to lens one.

[0016] Preferably, the reflection measurement port and the transmission measurement port are arranged at 90°.

[0017] Preferably, the reflector is arranged at an angle, and the reflective lens, lens one and lens two are arranged vertically.

[0018] The technical solution of the utility model has the following beneficial effects:

[0019] The utility model is suitable for measuring the reflection color or transmission color of various forms of objects in various application environments. It can perform two modes, namely, transmission measurement and reflection measurement, and can meet the measurement of more forms and different sizes of objects, as well as different working scenes. One instrument meets multiple needs and is convenient for users to use.

[0020] This colorimeter can use a 152mm diameter integrating sphere, LED combined light source, D / 8 geometric optical structure, and an integrated packaged concave grating spectrometer for spectroscopy. The optical path design places the reflection measurement port on the top and is equipped with an auxiliary fixing clamp to facilitate the placement of various forms of objects to be tested. It can be used to place solid objects, membrane materials, or culture dishes for liquids, pastes, powders, particles, etc. to measure the reflected color. A reflector is used to bend the reflection measurement optical path 90° at the bottom of the integrating sphere to facilitate space layout and reduce the size of the entire machine; the stepper motor is used to push the adjustment lens to different positions, and the corresponding measurement aperture plates of different sizes are matched to achieve multi-aperture reflection measurement switching;

[0021] The transmission measurement port is open-plan on the side, so that the size of the measured object is not limited. It is designed with a sliding compartment cover, which is connected by double slide rails to shield the ambient light when measuring small objects or measuring liquids with a cuvette. A detachable measurement clamp is designed in front of the transmission measurement port to facilitate the fixation of cuvettes, test tubes or small objects, and can be easily removed when measuring large objects. The transmission receiving optical path has two modes: single and double lenses, and can be disassembled by thread. It can be matched with the corresponding two measurement apertures to realize the switching of dual-aperture transmission measurement.

[0022] An accessory drawer is designed on the side of the instrument to effectively utilize the internal space. It is connected by a single slide rail and a spring-loaded connector. It pops out and closes by pressing. The drawer can hold aperture films of various sizes, calibration white boards, transmission lenses and other accessories without the need for an additional accessory box.

[0023] In order to take into account the harsh environment in some sites, a set of foot pads are designed on the back of the instrument, which can turn the instrument 90° and place it. At this time, the reflection measurement port is changed from top to side to avoid dust falling into the integrating sphere. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1a This is a schematic diagram of the structure of the utility model;

[0025] Figure 1b This is a schematic diagram of the structure of the utility model Figure 2 ;

[0026] Figure 2 This is a schematic diagram of opening the transmission sliding compartment cover 12 of the present invention;

[0027] Figure 3 This is a structural schematic diagram of opening the accessory drawer of the utility model;

[0028] Figure 4 This is a schematic diagram of the colorimeter of the utility model when placed horizontally;

[0029] Figure 5 This is a schematic diagram of the colorimeter of the utility model being placed upright. DETAILED DESCRIPTION

[0030] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0031] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0032] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0033] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] In the present invention, unless otherwise expressly specified or limited, a first feature is “on” or “below” a second feature.

[0035] “Under” may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature being “above”, “above”, and “above” the second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being “under”, “below”, and “below” the second feature includes the first feature being directly below and obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0036] Reference Figures 1a to 5 The utility model provides a multifunctional desktop colorimeter, comprising: an integrating sphere 1, a light source 2 placed in the integrating sphere 1, a reflection measurement module, and a transmission measurement module; the light energy emitted by the light source is homogenized by the integrating sphere 1 to form a full-spectrum diffuse light;

[0037] The integrating sphere 1 is provided with a reflection measurement port 3 and a transmission measurement port 5, and the light emitted by the light source 2 is emitted through the reflection measurement port 3 and the transmission measurement port 5; the reflection measurement port 3 is used to place the reflective measured object 4, and the cuvette 6 is arranged at the transmission measurement port 5; the reflection measurement port 4 and the transmission measurement port 5 are arranged at 90 degrees;

[0038] The reflection measurement module includes a reflector 14 placed under the integrating sphere 1, a reflective lens module placed in the optical path direction of the reflector 14, and a reflective spectrometer 18 placed in the optical path direction of the reflective lens module; the reflective lens module includes a reflector seat 17, a reflective lens barrel 16 arranged on the reflector seat 17, and a reflective lens 15 arranged on the reflective lens barrel 16; the reflector seat 17 is connected to the output end of the stepper motor 24, the reflective lens 15 is arranged at one end of the reflective lens barrel 16, and the reflective spectrometer 18 is arranged at the other end of the reflective lens barrel 16, and is connected to the output end of the stepper motor 24. The reflective lens 15 is opposite to the reflective mirror 14, and the reflective spectrometer 18 is used to read the spectral information output by the reflective lens 15 and convert it into an electrical signal output, and then after software and hardware processing and calculation, the color data information is output to the touch display screen 23 for presentation. In order to adapt to objects of different sizes, the reflective measurement port 3 is configured with four sizes. Correspondingly, in the optical path, the reflective lens 15 is fixed on the reflective lens barrel 16, and is pushed by the stepping motor 25 slide to slide to the corresponding position in the hole of the reflective lens seat 17 to obtain the collection range diameter corresponding to the measurement aperture specification.

[0039] The transmission measurement module includes a cuvette 6 arranged at the transmission measurement port 5, a lens assembly arranged next to the cuvette 6, and a projection spectrometer 11 placed in the optical path direction of the lens assembly. The lens assembly includes a lens holder 10, a lens 1 9 and a lens 2 8 arranged on the lens holder 10, and a transmission sliding compartment cover 12 slidably connected to the lens holder 10. When the transmission sliding compartment cover 12 is slid open, it can adapt to open-type measurement of large diaphragm plates, etc., and when measuring liquids, small items, etc., the compartment cover can be closed to shield ambient light;

[0040] The aperture of the lens 1 9 is larger than that of the lens 2 8. The lens 1 9 is set as a large-aperture lens, and the lens 2 8 is set as a small-aperture lens. The lens 1 9 and the lens 2 8 are sequentially arranged at one end of the lens holder 10. The projection spectrometer 11 is arranged at the other end of the lens holder 10 and is opposite to the lens 1 8. The projection spectrometer 11 is used to convert the spectrum information read into an electrical signal output, and then after software and hardware processing and calculation, the color data information is output to the touch display screen 23 for presentation. The reflective lens 15, the lens 1 8 and the lens 2 9 are all arranged vertically. In order to adapt to objects of different sizes, the transmission measurement port 5 is configured with two specifications of large and small. Correspondingly, in the optical path, the transmission small-aperture lens 8 is screwed on the transmission holder 10 by a thread. The user can load and unload the transmission small-aperture lens 8 according to the measurement aperture size to achieve optical path matching.

[0041] Furthermore, the multifunctional desktop colorimeter also includes a shell with an accessory drawer 22, and the shell is also provided with a horizontal support foot 13 and an upright support foot 19, which has two orientations, so that the instrument can be placed in two orientations for operation; the integrating sphere 1, the reflection measurement module, and the transmission measurement module are all placed in the shell, which can play a good protective role; an accessory drawer 22 is designed to place instrument-related accessories, which can place measurement calibers and calibration white boards, transmission small-aperture lenses and other items, which is convenient and practical.

[0042] Furthermore, a reflection measurement clamp 20 and a transmission measurement clamp 7 are provided on the shell. The reflection measurement clamp 20 is used to assist in fixing the reflective object 5 to prevent loosening, which is convenient for subsequent reflection measurement. The transmission measurement clamp 7 is used to assist in fixing the cuvette 6 to prevent loosening, which is convenient for subsequent transmission measurement.

[0043] Furthermore, the shell is also provided with a touch display screen 23, a stepper motor 25, and a snap 21; the screen display direction of the touch display screen 23 is controlled by a flip detection switch in the circuit, and the snap 21 is arranged on the accessory drawer 22 to realize the opening and closing of the accessory drawer 22 by pressing and popping out, which is convenient for opening and closing; the stepper motor 25 is also provided with a photoelectric switch 24, a group of photoelectric switches 24 are used for travel limit and positioning, and a reflective lens module. The output end of the stepper motor 25 is connected to the reflective lens module to drive the reflective lens module to move.

[0044] In this embodiment, the colorimeter uses a 152mm diameter integrating sphere 1, an LED combined light source, a D / 8 geometric optical structure, and an integrated packaged concave grating spectrometer. The optical path design places the reflection measurement port 3 on the top, and is provided with auxiliary fixed clamps (reflection measurement clamp 20 and transmission measurement clamp 7), which is convenient for placing various forms of objects to be measured, including solid objects, membrane materials, and a cuvette 6 for holding liquids, pastes, powders, particles, etc. to measure the reflected color. The reflection measurement optical path is bent 90° by a reflector 14 at the bottom of the integrating sphere 1 to facilitate spatial layout and reduce the size of the whole machine; the stepper motor 25 is used to push and adjust the reflection lens 15 to different positions, and to cooperate with the corresponding measurement aperture plates of different sizes to realize multi-aperture reflection measurement switching;

[0045] The transmission measurement port 5 is open-type on the side, so that the size of the measured object is not limited. It is designed with a sliding compartment cover 12, which is connected by double slide rails to shield the ambient light when measuring small objects or measuring liquids with the cuvette 6. A detachable measurement clamp (transmission measurement clamp 7) is designed in front of the transmission measurement port 5 to facilitate the fixing of the cuvette 6, test tube or small objects, and can be easily removed when measuring large objects. The transmission receiving optical path has two modes of single and double lenses, and can be disassembled by thread, and can be matched with the corresponding two measurement apertures to realize the switching of dual-aperture transmission measurement.

[0046] An accessory drawer 22 is designed on the side of the instrument to effectively utilize the internal space. It is connected by a single slide rail and a spring-loaded connector 21. It pops out and closes by pressing. The drawer can hold aperture films of various sizes, calibration whiteboards, transmission lenses and other accessories without the need for an additional accessory box.

[0047] Working principle of this utility model:

[0048] Reference Figures 1a to 1b :The light emitted by the light source 2 enters from the opening of the integrating sphere 1 wall, and after being homogenized by the integrating sphere 1, it forms a full-spectrum diffuse light, which can be emitted from the reflection measurement aperture 3 or the transmission measurement aperture 5;

[0049] In the reflection measurement mode, the reflective object 4 is placed at the reflection measurement port 3, and can be fixed with the reflection measurement clamp 20. The uniform diffuse light in the integrating sphere 1 illuminates the lower surface of the reflective object 4, as indicated by the arrow path. The light reflected from its surface carries the color information and enters the integrating sphere 1 again, and then is emitted through the lower opening, and then is reflected by the reflector 14, and then converged by the reflective lens 15, and then enters the reflection spectrometer 18. The read spectral information is converted into an electrical signal output, and then processed and calculated by software and hardware, and the color data information is output to the touch display screen 23 for presentation;

[0050] In the transmission measurement mode, the transmission object to be measured (translucent membrane plate, etc.) or the liquid is placed in a cuvette 6 and placed at the transmission measurement aperture 5, and is fixed with the transmission measurement clamp 7. As indicated by the arrow path, the uniformly diffused light in the integrating sphere 1 is emitted through the transmission measurement aperture 5. After penetrating the object to be measured, the light carries the corresponding color information, and is then converged by the transmission large-aperture lens 9 or the transmission small-aperture lens 8 + the transmission large-aperture lens 9, and enters the transmission spectrometer 11. The read spectral information is converted into an electrical signal output, and then processed and calculated by software and hardware, and the color data information is output to the touch display screen 23 for presentation.

[0051] Reference Figure 2 During transmission measurement, the transmission sliding compartment cover 12 can be opened or closed according to the size and characteristics of the object to be measured and the influence of ambient light.

[0052] Reference Figure 3 An accessory drawer 22 is built into the side of the instrument, which is opened and closed by pressing a spring 21. The drawer can be used to place items such as measurement apertures and calibration white boards, transmission small-aperture lenses, etc.

[0053] Reference Figure 4 When the instrument is working in a clean laboratory environment, it is more convenient to place the instrument horizontally using a set of flat feet 13.

[0054] Reference Figure 5When the instrument is working in a non-laboratory environment, a set of standing feet 19 can be used to stand the instrument. The built-in flip switch detects the direction of the instrument, and the software controls the screen display to flip 180° synchronously, which is convenient for operation and observation. At this time, the reflection measurement port 3 and the transmission measurement port 5 are both on the side facade, which can prevent dust from falling into the integrating sphere and contaminating the optical device.

[0055] The above description is only a preferred embodiment of the utility model, and does not limit the patent scope of the utility model. All equivalent structural changes made by using the contents of the utility model specification and drawings under the utility model concept, or directly / indirectly used in other related technical fields are included in the patent protection scope of the utility model.

Claims

1. A multifunctional desktop colorimeter, characterized in that: include: Integrating sphere, light source placed in the integrating sphere, reflection measurement module, transmission measurement module; The integrating sphere is provided with a reflection measurement port and a transmission measurement port, and the light emitted by the light source is emitted through the reflection measurement port and the transmission measurement port; the reflection measurement port is used to place the reflective object to be measured; The reflection measurement module comprises a reflector placed below the integrating sphere, a reflective lens module placed in the optical path direction of the reflector, and a reflective spectrometer placed in the optical path direction of the reflective lens module; The transmission measurement module comprises a cuvette arranged at the transmission measurement port, a lens assembly arranged beside the cuvette, and a projection spectrometer arranged in the light path direction of the lens assembly.

2. The multifunctional desktop colorimeter according to claim 1, characterized in that: The multifunctional desktop colorimeter also includes a shell with an accessory drawer, and the shell is also provided with horizontal legs and vertical legs; the integrating sphere, light source, reflection measurement module, and transmission measurement module are all placed in the shell.

3. The multifunctional desktop colorimeter according to claim 2, characterized in that: The housing is also provided with a reflection measurement clamp and a transmission measurement clamp. The reflection measurement clamp is used to assist in fixing the reflective object to be measured, and the transmission measurement clamp is used to assist in fixing the cuvette.

4. The multifunctional desktop colorimeter according to claim 3, characterized in that: The shell is also provided with a touch display screen, a stepper motor, and a snap-fastener; the snap-fastener is arranged on the accessory drawer to realize the opening and closing of the accessory drawer by pressing and popping out; the stepper motor is also provided with a photoelectric switch, and the output end of the stepper motor is connected to the reflective lens module to drive the reflective lens module to move.

5. The multifunctional desktop colorimeter according to claim 4, characterized in that: The reflective lens module comprises a reflective mirror seat, a reflective lens barrel arranged on the reflective mirror seat, and a reflective lens arranged on the reflective lens barrel; the reflective mirror seat is connected to the output end of the stepping motor.

6. The multifunctional desktop colorimeter according to claim 5, characterized in that The reflective lens is arranged at one end of the reflective lens barrel, and the reflective spectrometer is arranged at the other end of the reflective lens barrel and is opposite to the reflective lens.

7. The multifunctional desktop colorimeter according to claim 6, characterized in that: The lens assembly comprises a lens seat, a lens 1 and a lens 2 arranged on the lens seat, and a transmission sliding compartment cover slidably connected to the lens seat.

8. The multifunctional desktop colorimeter according to claim 7, characterized in that: The aperture of the lens one is larger than that of the lens two; the lens one and the lens two are arranged in sequence at one end of the lens holder, and the projection spectrometer is arranged at the other end of the lens holder and is opposite to the lens one.

9. The multifunctional desktop colorimeter according to claim 1, characterized in that: The reflection measurement port and the transmission measurement port are arranged at 90 degrees.

10. The multifunctional desktop colorimeter according to claim 8, characterized in that: The reflector is tilted, and the reflective lens, lens 1 and lens 2 are all vertically arranged.

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