CN112601316B - Full-spectrum table lamp illumination method and table lamp - Google Patents
Full-spectrum table lamp illumination method and table lamp Download PDFInfo
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/10—Controlling the intensity of the light
- H05B45/12—Controlling the intensity of the light using optical feedback
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/20—Controlling the colour of the light
- H05B45/22—Controlling the colour of the light using optical feedback
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Abstract
The invention relates to the field of full-spectrum illumination control, in particular to a full-spectrum desk lamp illumination method and a desk lamp, which form a local illumination zone, can be applied to an environment with certain basic illumination, collect the current environment color temperature as a first color temperature and collect the current environment spectrum as a first spectrum; and analyzing and obtaining control parameters required by the first spectrum to complement the existing first spectrum to full spectrum illumination, and carrying out supplementary illumination on the local illumination area by the desk lamp light source according to the control parameters. Fully considers the original illumination environment, forms a small-range full spectrum illumination for the user in combination with the original illumination environment, and enables the user to provide a natural illumination area for the user by improving the peripheral local range of the user in an uncontrollable environment. Effectively reducing eyestrain and improving mental state.
Description
Technical Field
The invention relates to the field of full-spectrum illumination control, in particular to a full-spectrum table lamp illumination method and a table lamp.
Background
The full spectrum illumination is an illumination mode simulating natural sunlight. The human body is sensitive to light, and the beneficial effect similar to natural sunlight on the human body can be generated through full spectrum illumination. For people who lack solar light irradiation for a long time and work indoors, the full spectrum illumination creates an atmosphere like natural environment, helps to relieve tension emotion and mental stress, improves the enthusiasm of people, and further plays roles in protecting eyes and vision. Improving visual perception and regulating physical and mental health of human body.
While full spectrum lighting has many benefits, the current mainstream indoor lighting, such as home, school, or office lighting, is mostly conventional. Since these places belong to a public environment, individuals cannot control these public lighting. Even if illumination is replaced, a large amount of manpower and material resources are consumed for gradual replacement, so that the popularization of full-spectrum illumination is not facilitated. There is a great need in the art for a method for rapidly implementing full spectrum lighting access in an existing lighting environment to address full spectrum technology applications in an existing lighting environment.
Disclosure of Invention
The present invention is directed to overcoming at least one of the above-mentioned drawbacks of the prior art, and providing a full spectrum desk lamp lighting method and a desk lamp for solving the problem of how to provide a natural illumination area for a user by improving a local peripheral area thereof in an uncontrollable environment.
The technical scheme adopted by the invention is that the full-spectrum desk lamp illumination method is provided, a local illumination area is formed, the method can be applied to an environment with certain basic illumination, the current environment color temperature is collected as a first color temperature, and the current environment spectrum is collected as a first spectrum; and analyzing and obtaining control parameters required by the first spectrum to complement the existing first spectrum to full spectrum illumination, and carrying out supplementary illumination on the local illumination area by the desk lamp light source according to the control parameters.
Fully considers the original illumination environment, forms a small-range full spectrum illumination for the user in combination with the original illumination environment, and enables the user to provide a natural illumination area for the user by improving the peripheral local range of the user in an uncontrollable environment. Effectively reducing eyestrain and improving mental state. The first color temperature under the original illumination environment is kept unchanged in the dimming process, so that a better effect is achieved when the spectrum in the local illumination area is completed, and rejection between the supplementary illumination and the surrounding environment is avoided. And the light fusion of the desk lamp light source and the original lighting environment in the local lighting environment is promoted.
The technical scheme is that the current ambient illuminance is collected as a first illuminance; the control parameters include: spectral parameters and illuminance parameters; the local illumination zone is kept at a first color temperature, and the control parameters required by the existing first spectrum to complete the full spectrum illumination are specifically as follows: outputting an illuminance parameter according to the first illuminance; and analyzing the difference between the first spectrum and the full spectrum corresponding to the first color temperature, simulating the complement spectrum required for supplementing the first spectrum to the full spectrum, forming spectral parameters corresponding to the complement spectrum, and controlling the desk lamp light source to supplement illumination to the local illumination area according to the spectral parameters and the illumination parameters. By combining the complement spectrum with the first spectrum under the same color temperature and the same illumination, the light coordination of the local illumination area after spectrum complement can be improved, and the illumination effect can be improved.
The technical scheme is that full spectrums with a plurality of different color temperatures are preset and stored, and each full spectrum corresponds to one color temperature; extracting a full spectrum corresponding to the first color temperature as a third spectrum; and simulating a complement spectrum required by complementing the first spectrum to the third spectrum, and forming spectral parameters corresponding to the complement spectrum. The preset stored full spectrum can be conveniently and quickly adjusted during analysis, and a more proper full spectrum can be selected according to the composition of the desk lamp light source, so that a high-accuracy supplementary spectrum can be obtained more quickly.
The technical scheme is that the simulation finds out the complement spectrum required for complementing the first spectrum to the third spectrum, specifically: analyzing and comparing the first spectrum with the third spectrum to obtain the band missing of the first spectrum in the spectrum curve, forming a preliminary complement spectrum complementary to the band missing, and further correcting according to the third spectrum by simulating the effect of combining the preliminary complement spectrum with the first spectrum to obtain the required complement spectrum. The required complement spectrum can be conveniently and rapidly obtained from the angle of complement of the missing wave band.
The technical scheme is that after the desk lamp light source supplements illumination to the local illumination zone according to the control parameters, the illumination of the current local illumination zone is collected to be third illumination, and if the third illumination is not less than 300lx, the control parameters are kept to be output; if the third illuminance is less than 300lx and the current time is detected to be in the daytime time, calling a third color temperature, wherein the third color temperature is 5000K-6000K, acquiring a full spectrum corresponding to the third color temperature as a fourth spectrum, automatically generating fourth illuminance, wherein the fourth illuminance is 450-500lx, outputting control parameters of the fourth spectrum and the fourth illuminance, and supplementing illumination to a local illumination area by a desk lamp light source according to the new control parameters; if the third illuminance is less than 300lx and the current time is detected to be in night time, a fourth color temperature is called, the fourth color temperature is 2700K-4000K, a full spectrum corresponding to the fourth color temperature is obtained to be a fifth spectrum, the fifth illuminance is automatically generated, the fifth illuminance is 350-400lx, control parameters of the fifth spectrum and the fifth illuminance are output, and the desk lamp light source supplements and illuminates the local illumination area according to the new control parameters.
In order to maintain the illumination effect of the local illumination area, the illumination of the local illumination area is preferably adjusted by adopting a spectrum complementation mode, but when the local illumination area cannot be in an environment with sufficient illumination after dimming, the local illumination area is covered by adopting a high-color-temperature full spectrum and high-illumination mode, and the meaning of adopting the high-color-temperature full spectrum and the high-illumination mode is that the influence of the original environment with low illumination at present is reduced, so that the local illumination area is ensured to reach the basic condition of the illumination of the desk lamp, and meanwhile, the illumination incompatibility caused by different spectrums, color temperatures and illumination is reduced. Meanwhile, the desk lamp light source judges the daytime and night states according to time and controls the desk lamp light source with different color temperatures, so that a user feels more comfortable in a local illumination area.
The technical scheme is that the acquisition position of the first color temperature and the first spectrum is close to the output position of the desk lamp light source and is not interfered with each other. The collected position is close to the output position of the desk lamp light source, so that the color coordinates of the collected position and the output position are consistent and even overlapped, the effect of light fusion is improved, and the light source and the desk lamp light source are combined more cooperatively.
The technical scheme is that the distance between the desk lamp light source and the light plane is 300-700mm. The light consumption in the distance can ensure the effect of the desk lamp light source after light fusion with the local illumination area.
The technical scheme is that full spectrums with a plurality of different color temperatures are preset and stored, and each full spectrum corresponds to one color temperature; the current illuminance and color temperature values can be displayed in a digital manner at any time; actively selecting a color temperature and an input illuminance, wherein the illuminance is 300lx-500lx; the color temperature is 2700K-6000K; automatically adjusting control parameters of full spectrum and illuminance corresponding to the color temperature; and outputting control parameters of full spectrum and illuminance corresponding to the actively selected color temperature, and carrying out supplementary lighting on the local lighting area by the desk lamp light source according to the new control parameters.
Through the active setting, a user can quickly control the desk lamp light source to output a comfortable light source in a space with little influence on no environment illumination or environment illumination, and can further keep local area illumination under specific color temperature and illumination. The digital display further assists the user to know the data representation of the color temperature and the illuminance, so that the user can more intuitively feel the influence of the two on the desk lamp light source, and the user can conveniently record the comfortable color temperature and illuminance.
The technical scheme is that the table lamp applying the full spectrum table lamp illumination method comprises a base, a table lamp light source and an adjustable supporting arm for connecting the base and the table lamp light source; the desk lamp light source comprises a plurality of LED chips with the emission wavelengths uniformly distributed between 380nm and 780nm, and the LED chips at least comprise: LED chips with emission wavelengths of 440-470nm, 520-545nm and 610-630 nm; the driving module is arranged in the base and is respectively connected with each LED chip to control the desk lamp light source to carry out illumination dimming with different spectrums and illumination; the first acquisition module is arranged on the back surface of the desk lamp light source and is close to the desk lamp light source, and the second acquisition module is arranged on the base and can acquire base plane position data; and the analysis module is arranged in the base and is respectively connected with the driving module, the first acquisition module and the second acquisition module and used for simulating, analyzing and outputting control parameters. The method comprises the steps of carrying out a first treatment on the surface of the The first acquisition module is arranged near the desk lamp light source and the second acquisition module is arranged on the base; and the analysis module is arranged in the base and is respectively connected with the driving module, the first acquisition module and the second acquisition module and used for analyzing and outputting control parameters.
The first acquisition module is used for acquiring first illumination, first color temperature and first spectrum, and the second acquisition module is used for acquiring illumination of a local illumination area. The acquisition point of the illuminance of the local illumination area is arranged on the base, so that the actual illuminance of the light use plane is more easily reflected in the acquisition process, and the illuminance acquisition in the local illumination area can more accurately reflect the actual effect after dimming.
According to the technical scheme, the LED chips with different emission wavelengths are output according to a certain power proportion under the control of the driving module to form a fixed spectrum.
Compared with the prior art, the invention has the beneficial effects that: fully considers the original illumination environment, forms a small-range full spectrum illumination for the user in combination with the original illumination environment, and enables the user to provide a natural illumination area for the user by improving the peripheral local range of the user in an uncontrollable environment. Effectively reducing eyestrain and improving mental state. By combining the complement spectrum with the first spectrum under the same color temperature and the same illumination, the light coordination of the local illumination area after spectrum complement can be improved, and the illumination effect can be improved.
Drawings
Fig. 1 is a control flow chart of the present invention.
Fig. 2 is an illustration of a table lamp to which the control method is applied in the present invention.
Reference numerals illustrate: the desk lamp comprises a desk lamp light source 100, a base 200, an adjustable support arm 300, a first acquisition module 410 and a second acquisition module 420.
Detailed Description
The drawings are for illustrative purposes only and are not to be construed as limiting the invention. For better illustration of the following embodiments, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the actual product dimensions; it will be appreciated by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
Example 1
The embodiment is a full spectrum desk lamp illumination method, forming a local illumination zone, which can be applied to an environment with certain basic illumination, collecting the current environment color temperature as a first color temperature, and collecting the current environment spectrum as a first spectrum; the analysis obtains the control parameters required for maintaining the first color temperature of the local illumination zone and complementing the existing first spectrum to full spectrum illumination, and the desk lamp light source 100 supplements illumination to the local illumination zone according to the control parameters.
Fully considers the original illumination environment, forms a small-range full spectrum illumination for the user in combination with the original illumination environment, and enables the user to provide a natural illumination area for the user by improving the peripheral local range of the user in an uncontrollable environment. Effectively reducing eyestrain and improving mental state. The first color temperature under the original illumination environment is kept unchanged in the dimming process, so that a better effect is achieved when the spectrum in the local illumination area is completed, and rejection between the supplementary illumination and the surrounding environment is avoided. The fusion of the light of the desk lamp 100 with the original lighting environment within the localized lighting environment is facilitated.
Further, in the environment lacking the light source, the full spectrum corresponding to the color temperature can be automatically obtained for illumination through actively setting the color temperature. The local illumination area at least comprises a region from the eyes of a user covered by the desk lamp light source 100 to a light utilization plane, such as a region between desktops, and the collection of the first color temperature is generally arranged above the desk lamp light source 100 and is positioned on the back of the desk lamp light source 100 shielded, so that the ambient color temperature which is not influenced by the desk lamp light source 100 is always collected in the process of collecting the first color temperature and the first spectrum. By means of spectrum curve simulation, the difference between the first spectrum and the full spectrum corresponding to the first color temperature is analyzed, the complement spectrum required by the full spectrum from the first spectrum complement to the full spectrum corresponding to the first color temperature is obtained, and the parameters of the control desk lamp light source 100 for outputting the complement spectrum are part of the control parameters.
Collecting the current ambient illuminance as a first illuminance; the control parameters include: spectral parameters and illuminance parameters; the local illumination zone is kept at a first color temperature, and the control parameters required by the existing first spectrum to complete the full spectrum illumination are specifically as follows: outputting an illuminance parameter according to the first illuminance; and analyzing the difference between the first spectrum and the full spectrum corresponding to the first color temperature, simulating the complement spectrum required for supplementing the first spectrum to the full spectrum, forming spectral parameters corresponding to the complement spectrum, and controlling the desk lamp light source 100 to supplement illumination to the local illumination region according to the spectral parameters and the illumination parameters. By combining the complement spectrum with the first spectrum under the same color temperature and the same illumination, the light coordination of the local illumination area after spectrum complement can be improved, and the illumination effect can be improved.
The first illuminance is further collected, and the first illuminance is used as an illuminance parameter for controlling the desk lamp light source 100. And on the basis of uniform illuminance and uniform color temperature, the software simulation method is used for obtaining a complement spectrum of the full spectrum corresponding to the first spectrum to the first color temperature in a differential complement mode, and taking the complement spectrum as a spectrum parameter for controlling the output spectrum of the desk lamp light source 100.
Presetting and storing full spectrums with different color temperatures, wherein each full spectrum corresponds to one color temperature; extracting a full spectrum corresponding to the first color temperature as a third spectrum; and simulating a complement spectrum required by complementing the first spectrum to the third spectrum, and forming spectral parameters corresponding to the complement spectrum. The preset stored full spectrum can be conveniently and quickly called during analysis, and a more appropriate full spectrum can be selected according to the composition of the desk lamp light source 100, so that a high-accuracy supplementary spectrum can be obtained more quickly.
The same color temperature has different spectrum expression forms, even the same color temperature and the full spectrum are different, so that the time consumption of randomly obtaining the full spectrum of the corresponding color temperature through calculation and analysis is long, and more calculation is needed. By presetting that each color temperature display of the desk lamp light source 100 has a corresponding full spectrum, when the output color temperature of the desk lamp light source 100 is determined, the target full spectrum, i.e. the third spectrum, in the local illumination zone where the desk lamp light source 100 needs to be adjusted is simultaneously and rapidly determined. After determining the existing first spectrum and the third spectrum as a target, the complement spectrum required by the first spectrum is calculated through analysis and simulation means, and is output in the form of spectrum parameters.
The complement spectrum required for complementing the first spectrum to the third spectrum is simulated, specifically: analyzing and comparing the first spectrum with the third spectrum to obtain the band missing of the first spectrum in the spectrum curve, forming a preliminary complement spectrum complementary to the band missing, and further correcting according to the third spectrum by simulating the effect of combining the preliminary complement spectrum with the first spectrum to obtain the required complement spectrum. The required complement spectrum can be conveniently and rapidly obtained from the angle of complement of the missing wave band.
Under the same color temperature illumination, the non-full spectrum contrast full spectrum differs in low sensitivity to individual light rays. Due to the lack of a certain band, certain wavelength responses of the non-full spectrum are very small, a trough which is obviously different from the full spectrum is formed on the spectrum curve, and the band corresponding to the trough can reflect the missing band of the non-full spectrum. The light sources with different emission wavelengths are adopted to simulate and supplement the power required by different wave bands, then the light source combination and the power proportion required by complementing the first spectrum into the third spectrum are formed through fitting of a plurality of light sources, and the spectrum parameters required by the desk lamp light source 100 are formed.
After the desk lamp light source 100 supplements and illuminates the local illumination area according to the control parameters, collecting the illuminance of the current local illumination area as third illuminance, and if the third illuminance is not less than 300lx, keeping the control parameters output; if the third illuminance is less than 300lx and the current time is detected to be in the daytime, calling a third color temperature which is 5000K-6000K, acquiring a full spectrum corresponding to the third color temperature as a fourth spectrum, automatically generating a fourth illuminance, outputting control parameters of the fourth spectrum and the fourth illuminance, and carrying out supplementary lighting on the local illumination region by the desk lamp light source 100 according to the new control parameters, wherein the fourth illuminance is 450-500 lx; if the third illuminance is less than 300lx and the current time is detected to be in night time, calling a fourth color temperature, wherein the fourth color temperature is 2700K-4000K, acquiring a full spectrum corresponding to the fourth color temperature as a fifth spectrum, automatically generating the fifth illuminance, outputting control parameters of the fifth spectrum and the fifth illuminance, and carrying out supplementary lighting on the local illumination region by the desk lamp light source 100 according to the new control parameters, wherein the fifth illuminance is 350-400 lx.
In order to maintain the illumination effect of the local illumination area, the illumination of the local illumination area is preferably adjusted by adopting a spectrum complementation mode, but when the local illumination area cannot be in an environment with sufficient illumination after dimming, the local illumination area is covered by adopting a high-color-temperature full spectrum and high-illumination mode, and the meaning of adopting the high-color-temperature full spectrum and the high-illumination mode is that the influence of the original environment with low illumination at present is reduced, so that the local illumination area is ensured to reach the basic condition of the illumination of the desk lamp, and meanwhile, the illumination incompatibility caused by different spectrums, color temperatures and illumination is reduced. Meanwhile, the desk lamp light source 100 judges the daytime and nighttime states according to time, and controls the desk lamp light source with different color temperatures, so that a user feels more comfortable in a local illumination area.
The dimming mode with the same color temperature and the same illuminance can enable the illumination in the local illumination area covered by the desk lamp light source 100 to be more coordinated, and the illumination effect is better, but the dimming mode has a defect that the illuminance of the desk lamp light source 100 is limited to a certain extent, so that the illuminance cannot be effectively and greatly improved. Therefore, when the original indoor illuminance is relatively low, even if the illuminance is improved to a certain extent after dimming, the basic illuminance required by the illumination of the desk lamp may still not be ensured. Further, the problem of insufficient illuminance is solved by a coverage mode, in order to improve the illumination effect of the desk lamp and reduce the influence of the environment on the illumination effect of the desk lamp, a full spectrum with high color temperature and high illuminance are adopted, for example, the illuminance output by the desk lamp light source 100 in daytime is 500lx, the color temperature is 5300K, and the full spectrum corresponding to the spectrum 5300K is used as a control parameter; and the illumination of the local illumination area is carried out under the condition of reducing the influence of the original environment as much as possible by taking the full spectrum corresponding to the output illumination at night of 350lx, the color temperature of 4000K and the spectrum of 4000K as control parameters. And different color temperature ranges are adopted in the daytime and at night, so that the adaptability to human eyes and the environment is considered, and discomfort caused by huge color temperature differences inside and outside a local illumination area is avoided.
The collection position of the first color temperature and the first spectrum is close to and not interfered with the output position of the desk lamp light source 100. The collected position is close to the output position of the desk lamp light source 100, so that the color coordinates of the collected position and the output position are consistent and even overlapped, the effect of the fused light is improved, and the collected position and the output position are combined more cooperatively.
In the process of supplementing the local illumination region to the full spectrum by the desk lamp light source 100, the full complement spectrum is synthesized by adopting a multi-light source fusion mode, and because the multi-light source synthesis is adopted, and the fusion of all the light sources at the same point is difficult to realize in position, the fusion effect of the synthesized light sources is poorer along with the longer distance from the light sources in the illumination process, and the larger deviation range from the full complement spectrum is. The desk lamp light source 100 can reduce the simulation effect of the spectrum after being amplified in a far distance, so the collection of the first spectrum should be close to the output position of the desk lamp light source 100, and the measurement is performed at the position closest to the synthesized position of the light beams, which is helpful to improve the feedback speed so as to obtain better synthesis effect. Meanwhile, the desk lamp light source 100 and the original illumination environment realize the consistent color coordinates of the two light sources, and in order to make the color coordinates of the two light sources closer, the acquisition position should be arranged at the output position of indoor illumination so that the two light sources can be combined better
The distance between the desk lamp light source 100 and the light plane is 300-700mm. The light energy within this distance ensures the effect of the desk lamp light source 100 after light fusion with the local illumination zone. The closer the combined light distance of the multiple light sources is, the better the effect of the combined light distance with the environment, the farther the illumination distance is, the worse the combined light effect of the desk lamp light source 100 is, and the worse the spectrum complement effect in the local illumination region is, so that a certain light distance should be limited. And the light plane refers to the position observed by human eyes, such as a tabletop, a book surface and the like.
Example 2
The embodiment is a full spectrum desk lamp lighting method, which presets and stores full spectrums with different color temperatures, and each full spectrum corresponds to one color temperature; the current illuminance and color temperature values can be displayed in a digital manner at any time; by actively selecting the color temperature and the input illuminance, the illuminance is 300lx-500lx; the color temperature is 2700K-6000K; automatically adjusting control parameters of full spectrum and illuminance corresponding to the color temperature; and outputting control parameters of full spectrum and illuminance corresponding to the actively selected color temperature, and carrying out supplementary lighting on the local illumination region by the desk lamp light source 100 according to the new control parameters.
By the active setting, the user can quickly control the desk lamp light source 100 to output a comfortable light source in a space with little influence on no or ambient illumination, and can further keep the local area illumination at a specific color temperature and illuminance. The digital display further assists the user to understand the data representation of the color temperature and the illuminance, so that the user can more intuitively feel the influence of the two on the desk lamp light source 100, and the user can conveniently record the comfortable color temperature and illuminance.
The active setting of color temperature and illuminance provides a freely matched illumination for the local illumination area for the user, and the desk lamp light source 100 is set to be in the morning environment between 8 and 9 in the morning, so that the fatigue is improved and the mood is adjusted. People can be put in natural environment, so as to relieve emotion, improve depression and even depression. Further, each person has different sensitivity, comfort and adaptability to indoor illumination with different illumination, most users lack professional optical knowledge, and cannot express illumination changes required by the users so as to enable equipment to be identified, and the digital display can help the users to quickly form visual perception of color temperature and illumination, so that use experience is improved.
Example 3
The embodiment is a desk lamp applying a full spectrum desk lamp illumination method, comprising a base 200, a desk lamp light source 100, and an adjustable support arm 300 connecting the base 200 and the desk lamp light source 100; the desk lamp light source 100 is composed of a plurality of LED chips with the emission wavelengths uniformly distributed between 380nm and 780nm, and the LED chips at least comprise: LED chips with emission wavelengths of 440-470nm, 520-545nm and 610-630 nm; the driving module is arranged in the base 200 and is respectively connected with each LED chip to control the desk lamp light source 100 to carry out illumination dimming with different spectrums and illumination; a first acquisition module 410 arranged on the back of the desk lamp light source 100 and close to the desk lamp light source 100, and a second acquisition module 420 arranged on the base 200 and capable of acquiring the plane position data of the base 200; the analysis module disposed in the base 200 is respectively connected to the driving module, the first acquisition module 410, and the second acquisition module 420, and is used for simulating, analyzing, and outputting control parameters. The method comprises the steps of carrying out a first treatment on the surface of the A first collection module 410 disposed near the desk lamp light source 100 and a second collection module 420 disposed on the base 200; the analysis module disposed in the base 200 is respectively connected to the driving module, the first acquisition module 410, and the second acquisition module 420, and is used for analyzing and outputting control parameters.
The LED chip has a plurality of combinations:
combination 1, equally dividing 380-780nm into 5 ranges, selecting LED chips with 5 emission wavelengths at close intervals, such as: 440nm, 530nm, 570nm, 615nm, 730nm;
combination 2, equally dividing 380-780nm into 10 ranges, selecting 10 LED chips with emission wavelengths at close intervals, such as: 408nm, 450nm, 468nm, 530nm, 570nm, 562nm, 625nm, 680nm, 730nm, 770nm;
the combination 3 is used for equally dividing 380-780nm into 15 ranges, and 15 LED chips with emission wavelengths are selected at close intervals;
combination 4, dividing each range of 440-470nm, 520-545nm and 610-630nm into two intervals, and selecting the LED chips with 6 emission wavelengths at close intervals;
in combination 5, each of the ranges of 440-470nm, 520-545nm and 610-630nm is divided into three sections, and 9 kinds of LED chips of emission wavelengths are selected at close intervals.
The desk lamp forms a local illumination zone, can be applied to an environment with certain basic illumination, the first acquisition module 410 acquires the current environment color temperature as a first color temperature, and the first acquisition module 410 acquires the current environment spectrum as a first spectrum; the analysis module analyzes and obtains control parameters required by the first color temperature of the local illumination zone and the existing first spectrum is complemented to full spectrum illumination, and the driving module controls the desk lamp light source 100 to carry out supplementary illumination on the local illumination zone according to the control parameters.
The first acquisition module 410 is configured to acquire a first illuminance, a first color temperature, and a first spectrum, and the second acquisition module 420 is configured to acquire illuminance of a local illumination region. The collection point of the illuminance of the second partial illumination area is arranged on the base 200, so that the actual illuminance of the light use plane is more easily reflected in the collection process, and the illuminance collection in the partial illumination area can more accurately reflect the actual effect after dimming. When the illuminance of the second partial illumination region is detected to be insufficient by the actual light plane, the desk lamp light source 100 can be controlled to switch from the dimming mode to the enhancement and coverage mode, and the illumination is performed with high color temperature, high brightness and full spectrum, so that a good illumination effect can be maintained.
Fully considers the original illumination environment, forms a small-range full spectrum illumination for the user in combination with the original illumination environment, and enables the user to provide a natural illumination area for the user by improving the peripheral local range of the user in an uncontrollable environment. Effectively reducing eyestrain and improving mental state. The first color temperature under the original illumination environment is kept unchanged in the dimming process, so that a better effect is achieved when the spectrum in the local illumination area is completed, and rejection between the supplementary illumination and the surrounding environment is avoided. The fusion of the light of the desk lamp 100 with the original lighting environment within the localized lighting environment is facilitated.
Furthermore, in the environment lacking the light source, the analysis module can automatically acquire the full spectrum corresponding to the color temperature for illumination through actively setting the color temperature. The local illumination area at least comprises a region from the eyes of the user covered by the desk lamp light source 100 to the light utilization plane, such as a region between desktops, and the collection of the first color temperature is generally arranged above the desk lamp light source 100 and is positioned on the back surface of the desk lamp light source 100 shielded, so that the first collection module 410 always collects the ambient color temperature which is not influenced by the desk lamp light source 100 in the process of collecting the first color temperature and the first spectrum. By means of spectrum curve simulation, the difference between the first spectrum and the full spectrum corresponding to the first color temperature is analyzed, the complement spectrum required by the full spectrum from the first spectrum complement to the full spectrum corresponding to the first color temperature is obtained, and the parameters of the control desk lamp light source 100 for outputting the complement spectrum are part of the control parameters.
Collecting the current ambient illuminance as a first illuminance; the control parameters include: spectral parameters and illuminance parameters; the local illumination zone is kept at a first color temperature, and the control parameters required by the existing first spectrum to complete the full spectrum illumination are specifically as follows: outputting an illuminance parameter according to the first illuminance; and analyzing the difference between the first spectrum and the full spectrum corresponding to the first color temperature, simulating the complement spectrum required for supplementing the first spectrum to the full spectrum, forming spectral parameters corresponding to the complement spectrum, and controlling the desk lamp light source 100 to supplement illumination to the local illumination region according to the spectral parameters and the illumination parameters. By combining the complement spectrum with the first spectrum under the same color temperature and the same illumination, the light coordination of the local illumination area after spectrum complement can be improved, and the illumination effect can be improved.
The first illuminance is further collected, and the first illuminance is used as an illuminance parameter for controlling the desk lamp light source 100. And on the basis of uniform illuminance and uniform color temperature, the software simulation method is used for obtaining a complement spectrum of the full spectrum corresponding to the first spectrum to the first color temperature in a differential complement mode, and taking the complement spectrum as a spectrum parameter for controlling the output spectrum of the desk lamp light source 100.
Presetting and storing full spectrums with different color temperatures, wherein each full spectrum corresponds to one color temperature; extracting a full spectrum corresponding to the first color temperature as a third spectrum; and simulating a complement spectrum required by complementing the first spectrum to the third spectrum, and forming spectral parameters corresponding to the complement spectrum. The preset stored full spectrum can be conveniently and quickly called during analysis, and a more appropriate full spectrum can be selected according to the composition of the desk lamp light source 100, so that a high-accuracy supplementary spectrum can be obtained more quickly.
The same color temperature has different spectrum expression forms, even the same color temperature and the full spectrum are different, so that the time consumption of randomly obtaining the full spectrum of the corresponding color temperature through calculation and analysis is long, and more calculation is needed. By presetting that each color temperature display of the desk lamp light source 100 has a corresponding full spectrum, when the output color temperature of the desk lamp light source 100 is determined, the target full spectrum, i.e. the third spectrum, in the local illumination zone where the desk lamp light source 100 needs to be adjusted is simultaneously and rapidly determined. After determining the existing first spectrum and the third spectrum as a target, the complement spectrum required by the first spectrum is calculated through analysis and simulation means, and is output in the form of spectrum parameters.
The complement spectrum required for complementing the first spectrum to the third spectrum is simulated, specifically: analyzing and comparing the first spectrum with the third spectrum to obtain the band missing of the first spectrum in the spectrum curve, forming a preliminary complement spectrum complementary to the band missing, and further correcting according to the third spectrum by simulating the effect of combining the preliminary complement spectrum with the first spectrum to obtain the required complement spectrum. The required complement spectrum can be conveniently and rapidly obtained from the angle of complement of the missing wave band.
Under the same color temperature illumination, the non-full spectrum contrast full spectrum differs in low sensitivity to individual light rays. Due to the lack of a certain band, certain wavelength responses of the non-full spectrum are very small, a trough which is obviously different from the full spectrum is formed on the spectrum curve, and the band corresponding to the trough can reflect the missing band of the non-full spectrum. The light sources with different emission wavelengths are adopted to simulate and supplement the power required by different wave bands, then the light source combination and the power proportion required by complementing the first spectrum into the third spectrum are formed through fitting of a plurality of light sources, and the spectrum parameters required by the desk lamp light source 100 are formed.
After the desk lamp light source 100 supplements and illuminates the local illumination area according to the control parameters, collecting the illuminance of the current local illumination area as third illuminance, and if the third illuminance is not less than 300lx, keeping the control parameters output; if the third illuminance is less than 300lx and the current time is detected to be in the daytime, calling a third color temperature which is 5000K-6000K, acquiring a full spectrum corresponding to the third color temperature as a fourth spectrum, automatically generating a fourth illuminance, outputting control parameters of the fourth spectrum and the fourth illuminance, and carrying out supplementary lighting on the local illumination region by the desk lamp light source 100 according to the new control parameters, wherein the fourth illuminance is 450-500 lx; if the third illuminance is less than 300lx and the current time is detected to be in night time, calling a fourth color temperature, wherein the fourth color temperature is 2700K-4000K, acquiring a full spectrum corresponding to the fourth color temperature as a fifth spectrum, automatically generating the fifth illuminance, outputting control parameters of the fifth spectrum and the fifth illuminance, and carrying out supplementary lighting on the local illumination region by the desk lamp light source 100 according to the new control parameters, wherein the fifth illuminance is 350-400 lx.
In order to maintain the illumination effect of the local illumination area, the illumination of the local illumination area is preferably adjusted by adopting a spectrum complementation mode, but when the local illumination area cannot be in an environment with sufficient illumination after dimming, the local illumination area is covered by adopting a high-color-temperature full spectrum and high-illumination mode, and the meaning of adopting the high-color-temperature full spectrum and the high-illumination mode is that the influence of the original environment with low illumination at present is reduced, so that the local illumination area is ensured to reach the basic condition of the illumination of the desk lamp, and meanwhile, the illumination incompatibility caused by different spectrums, color temperatures and illumination is reduced. Meanwhile, the desk lamp light source 100 judges the daytime and nighttime states according to time, and controls the desk lamp light source with different color temperatures, so that a user feels more comfortable in a local illumination area.
The dimming mode with the same color temperature and the same illuminance can enable the illumination in the local illumination area covered by the desk lamp light source 100 to be more coordinated, and the illumination effect is better, but the dimming mode has a defect that the illuminance of the desk lamp light source 100 is limited to a certain extent, so that the illuminance cannot be effectively and greatly improved. Therefore, when the original indoor illuminance is relatively low, even if the illuminance is improved to a certain extent after dimming, the basic illuminance required by the illumination of the desk lamp may still not be ensured. Further, the problem of insufficient illuminance is solved by a coverage mode, in order to improve the illumination effect of the desk lamp and reduce the influence of the environment on the illumination effect of the desk lamp, a full spectrum with high color temperature and high illuminance are adopted, for example, the illuminance output by the desk lamp light source 100 in daytime is 500lx, the color temperature is 5300K, and the full spectrum corresponding to the spectrum 5300K is used as a control parameter; and the illumination of the local illumination area is carried out under the condition of reducing the influence of the original environment as much as possible by taking the full spectrum corresponding to the output illumination at night of 350lx, the color temperature of 4000K and the spectrum of 4000K as control parameters. And different color temperature ranges are adopted in the daytime and at night, so that the adaptability to human eyes and the environment is considered, and discomfort caused by huge color temperature differences inside and outside a local illumination area is avoided.
The LED chips with different emission wavelengths are output according to a certain power proportion under the control of the driving module to form a fixed spectrum. Each LED chip is used for simulating a spectrum curve in a range, the control of the spectrum curve in the band is mainly carried out through power adjustment, a complete multi-LED chip fits a spectrum, in order to keep the inconvenience of the spectrum, the power of each LED chip is fixed according to a certain proportion, and when the brightness needs to be adjusted, the power of each LED chip rises, and the power ratio is fixed.
The collection position of the first color temperature and the first spectrum is close to and not interfered with the output position of the desk lamp light source 100. The collected position is close to the output position of the desk lamp light source 100, so that the color coordinates of the collected position and the output position are consistent and even overlapped, the effect of the fused light is improved, and the collected position and the output position are combined more cooperatively.
In the process of supplementing the local illumination region to the full spectrum by the desk lamp light source 100, the full complement spectrum is synthesized by adopting a multi-light source fusion mode, and because the multi-light source synthesis is adopted, and the fusion of all the light sources at the same point is difficult to realize in position, the fusion effect of the synthesized light sources is poorer along with the longer distance from the light sources in the illumination process, and the larger deviation range from the full complement spectrum is. The desk lamp light source 100 can reduce the simulation effect of the spectrum after being amplified in a far distance, so the collection of the first spectrum should be close to the output position of the desk lamp light source 100, and the measurement is performed at the position closest to the synthesized position of the light beams, which is helpful to improve the feedback speed so as to obtain better synthesis effect. Meanwhile, the desk lamp light source 100 and the original illumination environment realize the consistent color coordinates of the two light sources, and in order to make the color coordinates of the two light sources closer, the acquisition position should be arranged at the output position of indoor illumination so that the two light sources can be combined better
The distance between the desk lamp light source 100 and the light plane is 300-700mm. The light energy within this distance ensures the effect of the desk lamp light source 100 after light fusion with the local illumination zone. The closer the combined light distance of the multiple light sources is, the better the effect of the combined light distance with the environment, the farther the illumination distance is, the worse the combined light effect of the desk lamp light source 100 is, and the worse the spectrum complement effect in the local illumination region is, so that a certain light distance should be limited. And the light plane refers to the position observed by human eyes, such as a tabletop, a book surface and the like.
It should be understood that the foregoing examples of the present invention are merely illustrative of the present invention and are not intended to limit the present invention to the specific embodiments thereof. Any modification, equivalent replacement, improvement, etc. that comes within the spirit and principle of the claims of the present invention should be included in the protection scope of the claims of the present invention.
Claims (8)
1. The full spectrum desk lamp lighting method forms a local lighting area and can be applied to an environment with certain basic lighting, and is characterized in that:
collecting a current environment color temperature as a first color temperature, and collecting a current environment spectrum as a first spectrum; analyzing and obtaining control parameters required by the first spectrum to complement the existing first spectrum to full spectrum illumination, and carrying out supplementary illumination on the local illumination area by the desk lamp light source according to the control parameters;
collecting the current ambient illuminance as a first illuminance; the control parameters include: spectral parameters and illuminance parameters; the local illumination zone is kept at a first color temperature, and the control parameters required by the existing first spectrum to complete the full spectrum illumination are specifically as follows: outputting an illuminance parameter according to the first illuminance; analyzing the difference between the first spectrum and the full spectrum corresponding to the first color temperature, simulating the full spectrum required by supplementing the first spectrum to the full spectrum and forming a spectrum parameter corresponding to the full spectrum, and controlling the desk lamp light source to supplement illumination to the local illumination area according to the spectrum parameter and the illumination parameter;
presetting and storing full spectrums with different color temperatures, wherein each full spectrum corresponds to one color temperature; extracting a full spectrum corresponding to the first color temperature as a third spectrum; and simulating a complement spectrum required by complementing the first spectrum to the third spectrum, and forming spectral parameters corresponding to the complement spectrum.
2. The method for illuminating a full spectrum desk lamp as recited in claim 1, wherein: the simulation of the complement spectrum required for complementing the first spectrum to the third spectrum is as follows: analyzing and comparing the first spectrum with the third spectrum to obtain the band missing of the first spectrum in the spectrum curve, forming a preliminary complement spectrum complementary to the band missing, and further correcting according to the third spectrum by simulating the effect of combining the preliminary complement spectrum with the first spectrum to obtain the required complement spectrum.
3. The method for illuminating a full spectrum desk lamp as recited in claim 1, wherein:
after the desk lamp light source supplements illumination to the local illumination zone according to the control parameters, collecting the illumination of the current local illumination zone as third illumination, and if the third illumination is not less than 300lx, keeping the control parameters output;
if the third illuminance is less than 300lx and the current time is detected to be in the daytime time, calling a third color temperature, wherein the third color temperature is 5000K-6000K, acquiring a full spectrum corresponding to the third color temperature as a fourth spectrum, automatically generating fourth illuminance, wherein the fourth illuminance is 450lx-500lx, outputting control parameters of the fourth spectrum and the fourth illuminance, and supplementing illumination to a local illumination area by a desk lamp light source according to the new control parameters;
if the third illuminance is less than 300lx and the current time is detected to be in night time, a fourth color temperature is called, the fourth color temperature is 2700K-4000K, a full spectrum corresponding to the fourth color temperature is obtained to be a fifth spectrum, the fifth illuminance is automatically generated, the fifth illuminance is 350lx-400lx, control parameters of the fifth spectrum and the fifth illuminance are output, and the desk lamp light source supplements and illuminates the local illumination area according to the new control parameters.
4. The method for illuminating a full spectrum desk lamp as recited in claim 1, wherein: the acquisition position of the first color temperature and the first spectrum is close to the output position of the desk lamp light source and is not interfered with the output position of the desk lamp light source.
5. The method for illuminating a full spectrum desk lamp as recited in claim 1, wherein:
presetting and storing full spectrums with different color temperatures, wherein each full spectrum corresponds to one color temperature;
the current illuminance and color temperature values can be displayed in a digital manner at any time;
actively selecting a color temperature and an input illuminance, wherein the illuminance is 300lx-500lx; the color temperature is 2700K-6000K;
automatically adjusting control parameters of full spectrum and illuminance corresponding to the color temperature;
and outputting control parameters of full spectrum and illuminance corresponding to the actively selected color temperature, and carrying out supplementary lighting on the local lighting area by the desk lamp light source according to the new control parameters.
6. A desk lamp applying a full spectrum desk lamp lighting method as defined in any one of claims 1 to 5, characterized in that:
the desk lamp comprises a base, a desk lamp light source and an adjustable supporting arm for connecting the base and the desk lamp light source;
the desk lamp light source comprises a plurality of LED chips with the emission wavelengths uniformly distributed between 380nm and 780nm, and the LED chips at least comprise: LED chips with emission wavelengths of 440-470nm, 520-545nm and 610-630 nm;
the driving module is arranged in the base and is respectively connected with each LED chip to control the desk lamp light source to carry out illumination dimming with different spectrums and illumination;
the first acquisition module is arranged on the back surface of the desk lamp light source and is close to the desk lamp light source, and the second acquisition module is arranged on the base and can acquire base plane position data;
and the analysis module is arranged in the base and is respectively connected with the driving module, the first acquisition module and the second acquisition module and used for simulating, analyzing and outputting control parameters.
7. A desk lamp as recited in claim 6, wherein: the first acquisition module is used for acquiring first illumination, first color temperature and first spectrum, and the second acquisition module is used for acquiring illumination of a local illumination area.
8. A desk lamp as recited in claim 6, wherein: the LED chips with different emission wavelengths are output according to a certain power proportion under the control of the driving module to form a fixed spectrum.
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| EP1067825A2 (en) * | 1999-07-08 | 2001-01-10 | TARGETTI SANKEY S.p.A. | Device and method for controlled-spectrum lighting |
| CN107432069A (en) * | 2015-01-29 | 2017-12-01 | 索卢姆技术公司 | System and method for producing the light for representing target natural light |
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| US7019464B2 (en) * | 2003-04-24 | 2006-03-28 | Nevins Michael O | Dimmable flex arm lamp |
| WO2020124224A1 (en) * | 2018-12-20 | 2020-06-25 | Sollum Technologies Inc. | Method and system of supplementing the spectral content of illuminating light based on a target illumination spectrum |
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| EP1067825A2 (en) * | 1999-07-08 | 2001-01-10 | TARGETTI SANKEY S.p.A. | Device and method for controlled-spectrum lighting |
| CN107432069A (en) * | 2015-01-29 | 2017-12-01 | 索卢姆技术公司 | System and method for producing the light for representing target natural light |
| US9955546B1 (en) * | 2016-12-14 | 2018-04-24 | The United States Of America As Represented By Secretary Of The Navy | Automated environmental control of color temperature using full spectrum color changing light emitting diodes |
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