CN202994293U - Color sensor - Google Patents
Color sensor Download PDFInfo
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- CN202994293U CN202994293U CN 201220688605 CN201220688605U CN202994293U CN 202994293 U CN202994293 U CN 202994293U CN 201220688605 CN201220688605 CN 201220688605 CN 201220688605 U CN201220688605 U CN 201220688605U CN 202994293 U CN202994293 U CN 202994293U
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- color
- sensor
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- emitting diode
- circuit board
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Abstract
The utility model provides a color sensor, and aims to solve a problem that in the prior art the determination of the actual color or color combination of an object to be measured needs the provision of a primary color light source additionally and the comparison of a measured color with a reference color, and the color of the object to be measured can not be measured directly. The color sensor comprises a light-emitting diode which provides a primary color light source of the object to be measured, a sensor chip which receives and measures a reflected light intensity signal generated on the object to be measured, a printed circuit board which is provided with the light-emitting diode and the sensor chip, and an output part which is electrically connected to the printed circuit board, provides a working power supply needed by the light emitting diode and outputs information containing the color of the object to be measured measured by the sensor chip. A user can directly use the color sensor to measure the color of the object to be measured, and additionally adding a primary color lighting source is not needed.
Description
Technical field
The utility model belongs to color detection means, relates in particular to a kind of color sensor.
Background technology
Primary colors is again primary colours, refers to the Essential colour that can not draw by the mixing preparation of other colors.With the former mixture of colours, can produce other new color in varing proportions.For example, the three primary colours of light are exactly RGB (Red, Green, Blue are referred to as RGB).Ruddiness and the green glow mixing of equivalent can be produced gold-tinted, green glow and the blue light of equivalent can be produced green light, the Red and blue light of equivalent is mixed to produce magenta light and (also claim fuchsin, namely more shallow purplish red), redness, green and the blue mixing of equivalent can be produced white, when three kinds of primary colors light intensities are zero, just produce black.
Common color sensor is by exposing to the determinand surface with primary colours or near primary lights (can contain three primary colours), the light of body surface reflection is after the sensor target surface receives, the various reference colors (reference color) of having calibrated with this sensor compare, when every pair of color (measure color and reference color) when matching in certain error range, form with voltage or frequency provides the measurement result that meets, thereby determines actual color or the color composition on testee surface.Such color sensor need additionally install primary lights additional and will measure color and reference color compare actual color or the color combination that could determine object.
The utility model content
The purpose of this utility model is to provide a kind of color sensor, and being intended to solve in prior art additionally to provide
Primary lights and will measure color and reference color compare actual color or the color combination that could determine object, and can not directly measure the problem of the color of object under test.
A kind of color sensor that the utility model provides comprises light emitting diode, the reception that the object under test primary lights is provided and measures the sensor chip of the reflected light light intensity signal that produces on described object under test, is provided with the printed circuit board (PCB) of described light emitting diode and described sensor chip and is electrically connected at described printed circuit board (PCB) and provide the required working power of described light emitting diode and export the measured output that contains the object under test colouring information of described sensor chip.
Further, described web member comprises winding displacement and the connector of pegging graft with external circuit, and described winding displacement one end is welded on described printed circuit board (PCB), and the other end is electrically connected at described connector.
Further, described color sensor also comprises the sensor stand that described printed circuit board (PCB) is installed, described sensor stand is provided with the first cavity and the second cavity, and described light emitting diode is placed in described the first cavity, and described sensor chip is placed in described the second cavity.
Further, described the first cavity and described the second cavity are isolated mutually.
Further, described sensor stand is provided with the first passage that communicates with described the first cavity and the second channel that communicates with described the second cavity, is communicated with between described first passage and described second channel and forms angle.
Further, described light emitting diode faces described first passage and part is contained in described first passage, and described sensor chip faces described second channel.
Further, described color sensor also comprises protective cover, and described protective cover is arranged at the bottom of described the second cavity.
Further, described color sensor also comprises the pressing plate of being located at described sensor stand top, and described pressing plate is fixedly connected with described sensor stand, and described printed circuit board (PCB) is fixedly installed between described sensor stand and described pressing plate.
Further, described pressing plate is provided with a plurality of block tongues, described block tongue is positioned at the side of described pressing plate, described sensor stand is provided with a plurality of draw-in grooves, described draw-in groove is arranged with the inwall in described sensor stand, and described block tongue and described draw-in groove cooperatively interact that described pressing plate is fixedly installed on described sensor stand.
Further, described sensor stand is provided with the host cavity of accommodating described printed circuit board (PCB), and described host cavity communicates with described the first cavity and described the second cavity.
The color that the color sensor that the utility model provides directly provides primary lights and directly measures object under test by sensor chip by light emitting diode, and utilize output that the required working power of light emitting diode and the measured colouring information that contains object under test of output transducer chip are provided.Therefore, the user can directly measure the color of object under test with this color sensor, and need not to install additional extra former primary colours lighting source and external extra rear end exploitation circuit to draw the color of object under test.And this color sensor is simple in structure, and is easy to use.
Description of drawings
Fig. 1 is the cut-open view of the direction of color sensor that provides of the utility model.
Fig. 2 is the cut-open view of another direction of color sensor of providing of the utility model.
Fig. 3 is the enlarged drawing of III in Fig. 2.
The vertical view of the color sensor that Fig. 4 provides for the utility model.
Fig. 5 is the three-dimensional exploded view of the direction of color sensor that provides of the utility model.
Fig. 6 is the three-dimensional exploded view of another direction of color sensor of providing of the utility model.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explaining the utility model, and be not used in restriction the utility model.
Please refer to Fig. 1, color sensor of the present utility model is for detection of the actual color on object under test surface, and comprises light emitting diode 20, the sensor chip 30 that receives and measure the reflected light light intensity signal that produces on object under test that the object under test primary lights is provided, be provided with the printed circuit board (PCB) 40 of light emitting diode 20 and sensor chip 30 and be electrically connected at printed circuit board (PCB) 40 and provide the required working power of light emitting diode 20 and the measured output that contains the object under test colouring information 50 of output transducer chip 30.The user can directly measure the color of object under test with this color sensor, and need not to install additional separately former primary colours lighting source.Described object under test colouring information is electric signal, by being electrically connected and directly being read by the external signal receiving trap.
In the present embodiment, light emitting diode 20 is that colour temperature is higher than the LED light emitting diode of 5500K.
Primary lights described in the utility model refers to contain the light of red-green-blue, and the mixing of primary colours light in varing proportions can produce other new color.
In the present embodiment, sensor chip 30 is colorama/frequency converters able to programme, and model is the TCS230 chip.
TCS230 adopts the small outline integrated circuit encapsulation (Small Outline Integrated CircuitPackage is called for short SOIC) of 8 pins, is integrated with 64 photodiodes on one chip.These diodes are divided into and are Four types, and wherein, 16 photodiodes are with red filter; 16 photodiodes are with green filter; 16 photodiodes are with blue electric-wave filter; All the other 16 without any wave filter, can see through whole optical informations.On the one hand, these photodiodes are cross arrangement in chip, can reduce to greatest extent the unevenness of incident light radiation, thereby increase the degree of accuracy of color identification; On the other hand, 16 photodiodes of same color are connected in parallel, and are evenly distributed in diode array, can eliminate the site error of color.During work, come the needed wave filter of Dynamic Selection by two programmable pins.When a selected color filter, it only allows certain specific primary colors to pass through, and stops passing through of other primary colors.For example, when selecting red filter, only have redness to pass through in incident light, blue and green all is prevented from, and so just can obtain the light intensity of red light; In like manner, select other wave filter, just can obtain the light intensity of blue light and green light.By these three values, just can analyze the color that projects the light on the TCS230 sensor.
This printed circuit board (PCB) 40 is provided with the feed circuit (not shown) of light emitting diode 20 and the rear end exploitation circuit (not shown) of sensor chip 30, the working power that provides light emitting diode 20 required is provided with external power source by output 50 these feed circuit, and this rear end exploitation circuit can directly provide the color measuring result of object under test for the user.Rear end described in the utility model exploitation circuit refers to the silicon photoelectric diode that configures on sensor chip 30 and the single cmos circuit of integrated one of current frequency converter, output signal is digital quantity, and need not external extra analog/digital (Analog/Digital, be called for short A/D) change-over circuit.
Please be simultaneously with reference to Fig. 6, this output 50 comprises winding displacement 52 and the connector 54 of pegging graft with external circuit, an end of this winding displacement 52 is welded on the pad of printed circuit board (PCB) 40 and the other end is electrically connected at connector 54.When connector 54 is electrically connected with external circuit, by winding displacement 52 provide the required working power of the feed circuit of light emitting diode 20 and with the colouring information that sensor chip 30 is measured transfer to signal receiving device (for example: display device), with power supply and the communication that guarantees this color sensor and external circuit.Therefore, this color sensor can be directly used in color measurement system, and only is required to be this color measurement system and provides power supply and signal receiving device to get final product.
In the present embodiment, the parameter request of this color sensor is: the visible light measurement range is that 380 ~ 780nm, input power are that 2.7 ~ 5.5V, output frequency are that 500 ~ 600KHz and nonlinearity are ± 0.5%.
Please in the lump with reference to Fig. 5 and Fig. 6, this color sensor also comprises the sensor stand 10 that this printed circuit board (PCB) 40 is installed, and this sensor stand 10 is provided with the first cavity 12 and the second cavity 14.Printed circuit board (PCB) 40 is covered on the first cavity 12 and the second cavity 14 tops, and light emitting diode 20 is placed in the first cavity 12 and sensor chip 30 is placed in the second cavity 14.In the present embodiment, the first cavity 12 and the second cavity 14 are isolated mutually, can directly not received by sensor chip 30 with the light source that guarantees light emitting diode 20, thereby affect measurement result.
This sensor stand 10 is provided with the first passage 13 that communicates with the first cavity 12 and the second channel 15 that communicates with the second cavity 14.Light emitting diode 20 faces first passage 13 and part is contained in first passage 13, and sensor chip 30 faces second channel 15.First passage 13 is used for passing through for the primary lights of light emitting diode 20 outputs, and the reflected light that produces on the object under test that second channel 15 is used for receiving for sensor chip 30 passes through.Be communicated with and form included angle A between first passage 13 and second channel 15, particularly, in a bit, this intersection point is positioned at this sensor stand 10 belows to the center line of first passage 13 and second channel 15 at space intersection, thereby can guarantee the placement of object under test.Preferably, this intersection point is positioned at the object under test surface that is positioned over sensor stand 10 belows.Form included angle B between light emitting diode 20 and printed circuit board (PCB) 40 so that this light emitting diode 20 is relative with first passage 13.The numerical range of this included angle A is 15 °＜A＜45 °.Especially sensor chip 40 be positioned at this object under test directly over and included angle A when being 30 °, result of use is best, can reduce the size of printed circuit board (PCB) 40 and the element on reasonable Arrangement printed circuit board (PCB) 40, this moment, included angle B was 60 °.
In the present embodiment, this sensor stand 10 is made by the plastic material of black, this plastic material can be polycarbonate, polyoxymethylene or ABS engineering plastics etc., the inside surface of this first passage 13 and second channel 15 is made the inferior light state of frosted, to eliminate the veiling glare that affects measurement result that in first passage 13 and second channel 15 inwalls, reflected light produces.
This color sensor also comprises a protective cover 17, and the bottom that this protective cover 17 is arranged at the second cavity 14 to be isolating the second cavity 14 and second channel 15, thereby in use protects sensor chip 30 to avoid stained.This protective cover 17 is made by glass or resin.
In the present embodiment, this protective cover 17 is U-shaped seat and is located at the bottom of this second cavity 14 so that install.
In other embodiments; this protective cover 17 is sheet; and shape is identical with the transverse shape of the second cavity 14, and perhaps and stifled be located at second channel 15 and second cavity 14 junctions set step on identical with the shape of cross section of second channel 15, simple in structure.
Please also comprise with reference to this color sensor of Fig. 2 to Fig. 4 the pressing plate 19 that is covered on sensor stand 10 tops simultaneously, this pressing plate 19 is fixedly connected with sensor stand 10 and printed circuit board (PCB) 40 is fixedly installed between sensor stand 10 and this pressing plate 19.
In the present embodiment, this pressing plate 19 is provided with a plurality of block tongues 190 and breach 192, described block tongue 190 and described breach 192 lay respectively at the side of described pressing plate 19, this sensor stand 10 is provided with a plurality of draw-in grooves 160 and fixture block 162, described draw-in groove 16 is arranged with the inwall that is convexly set in sensor stand 10 in the inwall of sensor stand 10 and described fixture block, block tongue 190 cooperatively interacts with draw-in groove 16 and fixture block 162 cooperatively interacts that with breach 192 described pressing plate 19 is fixedly installed on described sensor stand 10, as shown in Figure 3.
In other embodiments, be easy structure, this pressing plate 19 is provided with a plurality of block tongues 190, described block tongue is positioned at the side of described pressing plate 19, this sensor stand 10 is provided with a plurality of draw-in grooves 160, described draw-in groove 160 is arranged with in the inwall of this sensor stand 10, and block tongue 190 cooperatively interacts that with draw-in groove 16 described pressing plate 19 is fixedly installed on described sensor stand 10; Perhaps, pressing plate 19 is provided with a plurality of breach 192, described breach 192 is arranged at the side of described pressing plate 19, this sensor stand 10 is provided with a plurality of fixture blocks 162, described fixture block is convexly set in the inwall of sensor stand 10, and fixture block 162 cooperatively interacts that with breach 192 described pressing plate 19 is fixedly installed on described sensor stand 10.
In other embodiment, this pressing plate 19 and sensor stand 10 be respectively equipped with a plurality of mounting holes, utilizes securing member (such as screw, bolt, rivet etc.) to be fixedly installed in described mounting hole so that this pressing plate 19 is fixedly installed on this sensor stand 10.
This sensor stand 10 is provided with the host cavity 11 of accommodating printed circuit board (PCB) 40, and this host cavity 11 is positioned at the first cavity 12 and the second cavity 14 tops and communicates with the first cavity 12 and the second cavity 14.Pressing plate 19 is covered on this sensor stand 10 and is contained in fully in this host cavity 11, so that the upper surface of the upper surface of this pressing plate 19 and this sensor stand 10 flushes, like this, this color sensor flat appearance.In addition, this host cavity 11 also can be arranged at pressing plate 19 towards a side of printed circuit board (PCB) 40, is used for accommodating this printed circuit board (PCB) 40.
This sensor stand 10 also comprises the fixed part 18 that is provided with fixed orifice 180, utilizes securing member (such as screw, bolt, rivet etc.) to pass this fixed orifice 180 and also this sensor stand 10 is fixed on test board (not shown).
The color that the color sensor that the utility model provides directly provides primary lights and directly measures object under test by sensor chip 30 by light emitting diode 20, and utilize output 50 that the color of the required working power of light emitting diode 20 and the measured object under test of output transducer chip 30 is provided.Especially, utilize the feed circuit of light emitting diode 20 to provide light emitting diode 20 required working power, and utilize the rear end exploitation circuit of sensor core 30 measure the color of object under test and be electrically connected to export measurement result with output 50.Therefore, the user can directly measure the color of object under test with this color sensor, and need not to install additional separately former primary colours lighting source and design back exploitation circuit to draw the color of object under test.And this color sensor is simple in structure, and is easy to use.
The sensor stand 10 of the color sensor that the utility model provides is provided with the first cavity 12 of mutual isolation and the second cavity 14 to accommodate respectively light emitting diode 20 and sensor chip 30, can directly do not received by sensor chip 30 with the light source that guarantees light emitting diode 20, and affect measurement result.
The color sensor that the utility model provides has first passage 13 and second channel 15, is designed to the matt surface of frosted in this first passage 13 and second channel 15, to have the preventing stray light function.
The color sensor that the utility model provides is provided with protective cover 17, carries out proofing dust and protecting with the sensitive surface to sensor chip 30.
Adopt block tongue 190 to coordinate with easy disassembly with draw-in groove 160 between the color sensor support 10 that the utility model provides and pressing plate 19, and can conveniently produce in batches.
The color sensor that the utility model provides is mainly used in the following aspects: carry out the quantitative measurment of content of material, as Blood diagnosis, urine analysis and tooth shaping etc. in medical field; Carry out the correction of electron device color output, as check and the correction of monitor color; Carry out color printer and plotting apparatus color calibration; And the color calibration of coating, textile and cosmetics manufacturing.
The above is only preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection domain of the present utility model.
Claims (10)
1. color sensor, it is characterized in that, comprise light emitting diode, the reception that the object under test primary lights is provided and measure the reflected light light intensity signal that produces on described object under test sensor chip, be provided with the printed circuit board (PCB) of described light emitting diode and described sensor chip and be electrically connected at described printed circuit board (PCB) and the required working power of described light emitting diode be provided and export the measured output that contains the object under test colouring information of described sensor chip.
2. color sensor as claimed in claim 1, is characterized in that, described web member comprises winding displacement and the connector of pegging graft with external circuit, and described winding displacement one end is welded on described printed circuit board (PCB), and the other end is electrically connected at described connector.
3. color sensor as claimed in claim 1, it is characterized in that, also comprise the sensor stand that described printed circuit board (PCB) is installed, described sensor stand is provided with the first cavity and the second cavity, described light emitting diode is placed in described the first cavity, and described sensor chip is placed in described the second cavity.
4. color sensor as described in any one in claims 1 to 3, is characterized in that, described the first cavity and described the second cavity are isolated mutually.
5. color sensor as claimed in claim 3, it is characterized in that, described sensor stand is provided with the first passage that communicates with described the first cavity and the second channel that communicates with described the second cavity, is communicated with between described first passage and described second channel and forms angle.
6. color sensor as claimed in claim 5, is characterized in that, described light emitting diode faces described first passage and part is contained in described first passage, and described sensor chip faces described second channel.
7. color sensor as claimed in claim 3, is characterized in that, also comprises protective cover, and described protective cover is arranged at the bottom of described the second cavity.
8. color sensor as claimed in claim 3, it is characterized in that, also comprise the pressing plate that is covered on described sensor stand top, described pressing plate is fixedly connected with described sensor stand, and described printed circuit board (PCB) is fixedly installed between described sensor stand and described pressing plate.
9. color sensor as claimed in claim 8, it is characterized in that, described pressing plate is provided with a plurality of block tongues, described block tongue is positioned at the side of described pressing plate, described sensor stand is provided with a plurality of draw-in grooves, described draw-in groove is arranged with the inwall in described sensor stand, and described block tongue and described draw-in groove cooperatively interact that described pressing plate is fixedly installed on described sensor stand.
10. color sensor as claimed in claim 3, is characterized in that, described sensor stand is provided with the host cavity of accommodating described printed circuit board (PCB), and described host cavity communicates with described the first cavity and described the second cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220688605 CN202994293U (en) | 2012-12-13 | 2012-12-13 | Color sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220688605 CN202994293U (en) | 2012-12-13 | 2012-12-13 | Color sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202994293U true CN202994293U (en) | 2013-06-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220688605 Expired - Lifetime CN202994293U (en) | 2012-12-13 | 2012-12-13 | Color sensor |
Country Status (1)
| Country | Link |
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| CN (1) | CN202994293U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103707634A (en) * | 2013-12-17 | 2014-04-09 | 衡水英利新能源有限公司 | Automatic color separating and printing device of photovoltaic assembly |
| CN106012430A (en) * | 2016-07-05 | 2016-10-12 | 海信（山东）冰箱有限公司 | Color sensor and washing machine |
| WO2019214618A1 (en) * | 2018-05-07 | 2019-11-14 | 链尚信息科技（上海）有限公司 | Color picking device |
-
2012
- 2012-12-13 CN CN 201220688605 patent/CN202994293U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103707634A (en) * | 2013-12-17 | 2014-04-09 | 衡水英利新能源有限公司 | Automatic color separating and printing device of photovoltaic assembly |
| CN103707634B (en) * | 2013-12-17 | 2016-11-23 | 衡水英利新能源有限公司 | Photovoltaic module automatic color separation printing equipment |
| CN106012430A (en) * | 2016-07-05 | 2016-10-12 | 海信（山东）冰箱有限公司 | Color sensor and washing machine |
| CN106012430B (en) * | 2016-07-05 | 2018-08-31 | 海信（山东）冰箱有限公司 | A kind of color sensor and washing machine |
| WO2019214618A1 (en) * | 2018-05-07 | 2019-11-14 | 链尚信息科技（上海）有限公司 | Color picking device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130612 |
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| CX01 | Expiry of patent term |