CN210928076U - LED standard light source color matching device - Google Patents
LED standard light source color matching device Download PDFInfo
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- CN210928076U CN210928076U CN201921078238.0U CN201921078238U CN210928076U CN 210928076 U CN210928076 U CN 210928076U CN 201921078238 U CN201921078238 U CN 201921078238U CN 210928076 U CN210928076 U CN 210928076U
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Abstract
The utility model discloses a LED standard light source color matching device, which comprises a quantum dot LED lamp, a detector with optical photography, a microprocessor and a memory, wherein the microprocessor is respectively connected with the quantum dot LED lamp, the detector with optical photography and the memory; the memory stores optical parameters of the quantum dot LED lamp, and the optical parameters comprise one or more of a color rendering index value, a full-color-domain index value, spectral energy distribution, brightness, uniformity, color temperature, light color quality and color tolerance which are combined to form a standard light source parameter scene; an optical data adjusting control program is arranged in the microprocessor, the program detects a target product with a required contrast color according to a detector with optical photography, and a scene of standard light source parameters matched with the target product in the memory can be triggered and called automatically or manually from the outside to adjust the electric light source of the quantum dot LED lamp. The utility model discloses reduce the color matching error, the control of having avoided different colour temperatures will realize in order to change different electric light sources.
Description
Technical Field
The utility model relates to a measuring instrument technical field especially relates to a LED standard light source is to look device.
Background
The standard light source color matching lamp stand/box is widely applied to the color management fields of visual evaluation, color matching and proofing, color difference identification, fluorescent substances and the like of textile, toys, printing and dyeing, plastic cement, paint, printing ink, printing, pigment, chemical engineering, packaging, ceramics, shoe industry, leather, hardware, food, cosmetics and various industries, so that the sample, production, quality inspection and acceptance are carried out under the same standard light source, the color deviation of goods is accurately corrected, the quality of the color of the goods is ensured to meet the requirement, and the product quality and the market competitiveness are improved.
At present, the standard light source color matching lamp table/box widely uses the traditional electric light source as the standard color matching electric light source, such as a fluorescent lamp, a three-primary color lamp and a metal halide lamp, and the optical parameter performance of the traditional electric light source is not ideal, so that in order to reduce color matching errors, a plurality of different electric light source lamps and different color temperatures (usually 7-8 types) need to be matched according to different contrast colors, and the color matching effect is not ideal, and the required color matching accuracy and color temperature control are not achieved.
The stroboflash of the electric light source can not be detected by naked eyes, but can cause visual fatigue and even headache if the stroboflash is used for a long time, and researches show that the stroboflash of the brightness of the fluorescent lamp can influence the eye movement track of people, and in addition, the visual impairment is just caused by the stroboflash of the fluorescent lamp in some health examination reports. Therefore, it is necessary to develop a device capable of accurately adjusting the light source, reducing color matching errors, realizing flicker-free, and adjusting the color temperature.
SUMMERY OF THE UTILITY MODEL
The utility model provides a LED standard light source is to look device avoids changing multiple different electric light source lamp and color temperature control.
The utility model adopts the following technical scheme:
LED standard light source is to look at the device, includes: the detector with optical photography comprises an electric light source consisting of quantum dot LED lamps, a detector with optical photography, a microprocessor and a memory, wherein the output end of the detector with optical photography is connected with the input end of the microprocessor, the output end of the memory is connected with the input end of the microprocessor, and the input end of the microprocessor is connected with the input end of the electric light source so as to adjust the electric light source consisting of the quantum dot LED lamps.
According to the scheme, through the control and cluster combination of extremely accurate quantum dot size of a nanometer level, a flat electric light source is formed by electroluminescent quantum dot LED lamps below 100NM, the color temperature of the quantum dot LED lamps can be adjusted in a stepless mode through a dimming and color mixing control program in a microprocessor according to optical parameters in a memory so as to achieve color matching precision, color matching errors are reduced, the traditional electric light source with various color temperatures is avoided, and meanwhile the control of different color temperatures is achieved by replacing different electric light sources.
Preferably, the color temperature ranges from 3000K to 7500K.
As an improvement of the above scheme, the LED standard light source color matching device further includes at least two sets of quantum dot LED lamp branches, the quantum dot LED lamps of the at least one set of quantum dot LED lamp branches are of high color temperature, and the quantum dot LED lamps of the at least one set of quantum dot LED lamp branches are of low color temperature;
the quantum dot LED lamp branch comprises a PWM/PFM dual-mode pulse control constant current driving power supply chip and the quantum dot LED lamp which are sequentially connected; the output end of the microprocessor is respectively connected with the PWM/PFM dual-mode pulse control constant current driving power supply chip, and the high and low color temperatures of the quantum dot LED lamps of the at least two groups of quantum dot LED lamp branches are accurately controlled; wherein the low color temperature is 3000K-5250K, and the high color temperature is 5250K-7500K.
In the scheme, the constant-current driving power supply chip can change non-sine-wave-shaped alternating current into direct current with output close to smoothness, so that stroboflash of the quantum dot LED lamp is avoided. And by accurately controlling the high and low color temperatures of the quantum dot LED lamps mixing the at least two groups of quantum dot LED lamp branches, thousands of levels of color and light modulation control is provided for the quantum dot LED lamps as standard electric light sources.
As an improvement of the scheme, an electronic filter circuit is arranged between the PWM/PFM dual-mode pulse control constant-current driving power supply chip and the quantum dot LED lamp and used for further reducing stroboflash.
The microprocessor is also connected with a touch screen capable of human-computer interaction and/or a plurality of entity keys.
Preferably, the electric light source is an electroluminescent quantum dot LED lamp below 100 NM.
Preferably, the electric light source is a flat plate type quantum dot LED lamp.
Drawings
Fig. 1 is a schematic structural diagram of a color matching device of an LED standard light source provided in embodiment 1 of the present invention;
fig. 2 is a schematic structural diagram of a color matching device of an LED standard light source provided in embodiment 2 of the present invention;
fig. 3 is a schematic structural diagram of a color matching device of a standard LED light source according to embodiment 3 of the present invention.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
Referring to fig. 1, it is a schematic structural diagram of a color matching device of an LED standard light source according to embodiment 1 of the present invention. The device comprises a memory 101, a microprocessor 102, a quantum dot LED lamp 103 and a detector 104 with optical photography, wherein the microprocessor 102 is respectively connected with the memory 101, the quantum dot LED lamp 103 and the detector 104 with optical photography.
The memory 101 stores a database of optical parameters of the quantum dot LED lamp, where the optical parameters include one or a combination of several of a color rendering index value, a full color gamut index value, spectral energy distribution, brightness, uniformity, color temperature, light color quality, and color tolerance to form a standard light source parameter scene, and the standard light source parameter scene may be one or more than one thousand.
An optical data adjustment control program is arranged in the microprocessor 102, and the program is used for detecting a target product with a required contrast color according to the detector 104 with optical photography, calling a scene of standard light source parameters matched with the target product in the memory 101 and adjusting the electric light source of the quantum dot LED lamp.
In actual use, the detector 104 with optical photography detects a target product with a required contrast color, obtains optical parameters of the target product and transmits the optical parameters to the microprocessor 102, an optical data adjusting control program in the microprocessor 102 calls a matched standard light source parameter scene in the database according to the optical parameters of the target product, and outputs a control adjusting signal to steplessly adjust the quantum dot LED lamp 103 according to the matched standard light source parameter scene so as to achieve color matching precision, reduce color matching errors, avoid the traditional configuration of multiple electric light sources with different color temperatures, and simultaneously avoid the control of different color temperatures to be realized by replacing different electric light sources.
Optionally, the microprocessor 102 is further connected to a touch screen capable of human-computer interaction and/or to a plurality of physical keys, 10 virtual keys and 10 physical keys are set on the touch screen in this embodiment, and each key corresponds to a different standard light source parameter scenario. And triggering an optical data adjustment control program through the touch screen to call the standard light source parameter scene in the database corresponding to the virtual key as required, or triggering the optical data adjustment control program through the entity key to call the standard light source parameter scene in the database corresponding to the entity key.
Optionally, the electric light source is an electroluminescent quantum dot LED lamp with a wavelength of 100NM or less, which constitutes a flat electric light source.
The optical parameters of the target product are product color, color temperature, material and/or reflection coefficient and the like.
Preferably, the color temperature ranges from 3000K to 7500K.
Referring to fig. 2, it is a schematic structural diagram of a color matching device of an LED standard light source according to embodiment 2 of the present invention. The device comprises a memory 201, a microprocessor 202, two groups of quantum dot LED lamp branches 203 and a strip optical photography detector 204.
The memory 201 is connected to the microprocessor 202. The memory 201 stores a database of optical parameters of the quantum dot LED lamp, where the optical parameters include one or a combination of several of a color rendering index value, a full color gamut index value, spectral energy distribution, brightness, uniformity, color temperature, light color quality, and color tolerance to form a standard light source parameter scene, and the standard light source parameter scene may be one or more than one thousand.
The quantum dot LED lamp branch 203 includes a PWM/PFM dual-mode pulse control constant current driving power supply chip 2031, a quantum dot LED lamp 2032, and an alternating current power supply 2033, a first input end of the PWM/PFM dual-mode pulse control constant current driving power supply chip 2031 is connected to an output end of the microprocessor 202, a second input end of the PWM/PFM dual-mode pulse control constant current driving power supply chip 2031 is connected to an output end of the alternating current voltage 2033, and an output end of the PWM/PFM dual-mode pulse control constant current driving power supply chip 2031 is connected to an input end of the quantum dot LED lamp 2032. The quantum dot LED lamp 2032 of one set of quantum dot LED lamp branches 203 is of high color temperature, and the quantum dot LED lamp of the other set of quantum dot LED lamp branches is of low color temperature, wherein the low color temperature is 3000K-5250K, the high color temperature is 5250K-7500K, preferably, the low color temperature is 3000K, and the high color temperature is 6500K.
In practical use, the detector 204 with optical photography detects a target product with a required contrast color, obtains optical parameters of the target product and transmits the optical parameters to the microprocessor 202, an optical data adjustment control program in the microprocessor 202 calls a standard light source parameter scene matched with the optical parameters in the database of the memory 201 according to the optical parameters of the target product, and outputs a control adjustment signal to the PWM/PFM dual-mode pulse control constant-current driving power supply chip 2031 according to the matched standard light source parameter scene, and the constant-current driving power supply chip can change non-sinusoidal alternating current into sinusoidal waveform, so that stroboflash of the quantum dot LED lamp is avoided. The microprocessor 202 outputs two paths of control signals to accurately control the high and low color temperatures of the quantum dot LED lamps of the two sets of quantum dot LED lamp branches 203, and color and light modulation control of thousands or tens of thousands of levels is provided for the quantum dot LED lamps serving as standard electric light sources.
Optionally, the output end of the microprocessor is connected with the quantum dot LED lamps of at least one group of quantum dot LED lamp branches respectively, the quantum dot LED lamps are high in color temperature, and the quantum dot LED lamps of at least one group of quantum dot LED lamp branches are low in color temperature.
Optionally, the microprocessor 202 is further connected to a touch screen capable of human-computer interaction and/or to a plurality of physical keys, 10 virtual keys and 10 physical keys are set on the touch screen in this embodiment, and each key corresponds to a different standard light source parameter scenario. And triggering an optical data adjustment control program through the touch screen to call the standard light source parameter scene in the database corresponding to the virtual key as required, or triggering the optical data adjustment control program through the entity key to call the standard light source parameter scene in the database corresponding to the entity key.
Optionally, the electric light source is an electroluminescent quantum dot LED lamp with a wavelength of 100NM or less, which constitutes a flat electric light source.
The optical parameters of the target product are product color, color temperature, material and/or reflection coefficient and the like.
Fig. 3 is a schematic structural diagram of a color matching device of an LED standard light source according to embodiment 3 of the present invention. The device comprises a memory 301, a microprocessor 302, two groups of quantum dot LED lamp branches and a detector 304 with optical photography.
The memory 301 is connected to the microprocessor 302. The memory 301 stores a database of optical parameters of the quantum dot LED lamp, where the optical parameters include one or a combination of several of a color rendering index value, a full color gamut index value, spectral energy distribution, brightness, uniformity, color temperature, light color quality, and color tolerance to form a standard light source parameter scene, and the standard light source parameter scene may be one or more than one thousand.
The specific structure of the circuit of two sets of quantum dot LED lamp branches is: an INPUT alternating current power supply AC INPUT is connected to current detection ports CS ends of PWM/PFM dual-mode pulse control constant current driving power supply IC chips 2 and 4 through a bridge rectifier 1, two output ends of a microprocessor 302 are respectively connected with digital PWM dimming ends CTRL pins of the PWM/PFM dual-mode pulse control constant current driving power supply IC chips 2 and 4, and driving port D pins of the IC chips 2 and 4 are connected to load quantum dot LED panel light sources 5 and 6.
The detector 304 with optical photography detects a target product with a required contrast color, obtains optical parameters of the target product and transmits the optical parameters to the microprocessor 302, an optical data adjusting control program in the microprocessor 302 calls a matched standard light source parameter scene in the database of the memory 301 according to the optical parameters of the target product, a PWM dimming signal of the quantum dot LED lamp is output and adjusted to CTRL pins of the IC chips 2 and 4 according to the matched standard light source parameter scene, and the PWM dimming signal is output to the light sources 5 and 6 of the load quantum dot LED flat plate lamp through D pins of the IC chips 2 and 4, so that mixed control of non-stroboscopic brightness and high-low color temperature of the light sources 5 and 6 of the quantum dot LED flat plate lamp is achieved. In this embodiment, the low color temperature of the LED flat lamp light source 5 is 3000K, and the high color temperature of the LED flat lamp light source 6 is 6500K.
The pins D of the PWM/PFM dual-mode pulse control constant-current driving power supply IC chips 2 and 4 are respectively connected with the load quantum dot LED flat lamp light sources 5 and 6 through RC filter circuits (R2, C2; R4 and C3), so that stroboflash is further reduced, and the quality of the quantum dot LED flat lamp light sources 5 and 6 as color matching standard light sources is improved.
Optionally, the RC filter circuit may be other electronic filters.
Optionally, the microprocessor 302 is further connected to a touch screen capable of human-computer interaction and/or to a plurality of physical keys, 10 virtual keys and physical keys on the touch screen are set in this embodiment, and each key corresponds to a different standard light source parameter scenario. And triggering an optical data adjustment control program through the touch screen to call the standard light source parameter scene in the database corresponding to the virtual key as required, or triggering the optical data adjustment control program through the entity key to call the standard light source parameter scene in the database corresponding to the entity key.
The foregoing is a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations are also considered as the protection scope of the present invention.
Claims (7)
- LED standard light source color matching device, characterized by comprising: the detector with optical photography comprises an electric light source consisting of quantum dot LED lamps, a detector with optical photography, a microprocessor and a memory, wherein the output end of the detector with optical photography is connected with the input end of the microprocessor, the output end of the memory is connected with the input end of the microprocessor, and the input end of the microprocessor is connected with the input end of the electric light source so as to adjust the electric light source consisting of the quantum dot LED lamps.
- 2. The LED standard light source color matching device according to claim 1, further comprising at least two sets of quantum dot LED lamp branches, wherein the quantum dot LED lamps of at least one set of quantum dot LED lamp branches are of high color temperature, and the quantum dot LED lamps of at least one set of quantum dot LED lamp branches are of low color temperature;the quantum dot LED lamp branch comprises a PWM/PFM dual-mode pulse control constant current driving power supply chip and the quantum dot LED lamp which are sequentially connected; the output end of the microprocessor is respectively connected with the PWM/PFM dual-mode pulse control constant current driving power supply chip, and the high and low color temperatures of the quantum dot LED lamps of the at least two groups of quantum dot LED lamp branches are accurately controlled;wherein the low color temperature is 3000K-5250K, and the high color temperature is 5250K-7500K.
- 3. The LED standard light source color matching device according to claim 2, wherein an electronic filter circuit is arranged between the PWM/PFM dual-mode pulse control constant-current driving power supply chip and the quantum dot LED lamp and used for reducing stroboflash.
- 4. The LED standard illuminant color matching device of claim 1, wherein said microprocessor is further connected to a human-machine interactive touch screen and/or to a plurality of physical keys.
- 5. The LED standard light source color matching device of claim 1, wherein the color temperature ranges from 3000K to 7500K.
- 6. The LED standard illuminant color matching device of claim 1, wherein said electrical illuminant is a below 100NM electroluminescent quantum dot LED lamp.
- 7. The LED standard light source color matching device as claimed in claim 1, wherein the electric light source is a flat plate type quantum dot LED lamp.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110514301A (en) * | 2019-07-04 | 2019-11-29 | 彭洲龙 | A kind of LED standard light source is to color device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110514301A (en) * | 2019-07-04 | 2019-11-29 | 彭洲龙 | A kind of LED standard light source is to color device |
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