CN111561667A - LED lamp manufacturing method and LED lamp - Google Patents
LED lamp manufacturing method and LED lamp Download PDFInfo
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- CN111561667A CN111561667A CN201910120504.XA CN201910120504A CN111561667A CN 111561667 A CN111561667 A CN 111561667A CN 201910120504 A CN201910120504 A CN 201910120504A CN 111561667 A CN111561667 A CN 111561667A
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- H—ELECTRICITY
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- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/20—Controlling the colour of the light
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
- F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
- F21K9/90—Methods of manufacture
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V9/00—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters
- F21V9/30—Elements containing photoluminescent material distinct from or spaced from the light source
- F21V9/32—Elements containing photoluminescent material distinct from or spaced from the light source characterised by the arrangement of the photoluminescent material
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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
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/10—Controlling the light source
- H05B47/16—Controlling the light source by timing means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
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Abstract
The invention provides a method for manufacturing an LED lamp and the LED lamp thereof, wherein the LED lamp is in telecommunication connection with a setting device and comprises the following steps: the device comprises a receiving module, a control module and a light emitting module. Wherein the receiving module receives a regulation instruction from the setting device, the control module is electrically connected with the receiving module, the control module comprises a circadian rhythm switching module, and a high circadian rhythm factor mode and a low circadian rhythm factor mode are formed by adjusting the concentration of fluorescent powder; the light emitting module is electrically connected with the control module and is provided with at least one blue LED and a plurality of fluorescent powders with different emission wavelengths for receiving the light emitted by the blue LED and exciting the light; therefore, the control module drives the light-emitting module through the regulating instruction, and a light-emitting mode with circadian rhythm factors with different high and low values at a preset color temperature is formed.
Description
Technical Field
The invention relates to the field of lighting lamps, in particular to a manufacturing method of an LED lamp capable of further setting different high and low circadian rhythm factor expressions under the same color temperature and an LED lamp thereof.
Background
In daily life, the light source most frequently touched by most people belongs to the artificial lighting part except the natural light which is most frequently touched. Light Emitting Diodes (LEDs) made of semiconductor devices are currently a type of light source that is energy-saving and power-saving, and the LEDs have high light emitting efficiency, long lifetime, and color adjustability and robustness superior to conventional light sources. Therefore, many lighting fixtures currently in use are preferably led.
Whether visible light is visible or invisible light is used as the basis for light classification, and visible light and invisible light can be classified, and the wavelength range of visible light is about 380-760 nm, and electromagnetic waves outside the range are invisible light. Since there are different photosensitive cells in human eyes, such as cone and column, the cells will not feel the same to light. For example, the cone-shaped photosensitive cell is a photosensitive cell with color sensitivity and poor sensitivity to light, so that the cone-shaped photosensitive cell has a photosensitive effect in a generally bright environment. In another aspect, the human eye has different sensitivities to light of different wavelengths, and the cone sensitivity curve for light of different wavelengths is known as Photopic curve (or chromatographic sensitivity characteristic state), or luminance function (or luminance function). Generally, the peak of the photopic sensitivity curve is located at a wavelength of about 555nm, meaning that the cones of the human eye have the highest sensitivity to light at a wavelength of 555nm, and 1 watt of green light at a wavelength of 555nm is approximately equal to 683 lumens (Lumen, Lm). As for the photosensitive cells in the shape of columns, the photosensitive cells cannot sense color, but the sensitivity is very sensitive. The sensitivity curve of a columnar cell at different wavelengths is known as Scotopic curve (Achromatic differentiation at low level of illumination curve). The peak of the scotopic sensitivity curve is at a wavelength of about 507nm, and 1 watt of light at 507nm is approximately equal to 1700 lumens (Lumen, Lm). Incidentally, for light of 555nm wavelength, 1 watt is equal to 683 lumens, regardless of the application to photopic or implied sensitivity.
In the evolution of life on earth, the sun and its spectrum and the alternation of the day and night play an important role in the adaptation of humans to the natural environment. As a light receptor, the human eye is deeply influenced by standard light, and the structure and function of the human eye are more familiar in long-term daily work. Therefore, it is desirable that the led-based artificial light source exhibit characteristics, such as color temperature and circadian factor behavior, comparable to standard light. Much of the previous research has focused on well-known luminance and chromaticity parameters, color coordinates, color rendering, radiant luminous efficiency, etc., with less regard to the adjustment settings of circadian factors.
In view of the above, the present invention provides a method for manufacturing an LED lamp capable of further setting different circadian factor expressions at the same color temperature, and an LED lamp thereof, so as to improve the drawbacks of the prior art.
Disclosure of Invention
In view of the above problems, the present invention is directed to a method for manufacturing an LED lamp and an LED lamp thereof, which are capable of effectively applying to various environments or various purposes by providing two or more different circadian factors at a certain fixed color temperature.
In order to achieve the above object, the present invention provides a method for manufacturing an LED lamp, comprising: providing at least one blue LED; providing a plurality of phosphors with different emission wavelengths, wherein the phosphors with different emission wavelengths are used for receiving the light emitted by the blue LED and being excited; selecting a preset color temperature, and selecting at least two kinds of fluorescent powder from the fluorescent powder with different emission wavelengths, so that the at least two kinds of fluorescent powder are excited by the blue LED and then mixed to emit light with the preset color temperature; setting a high circadian rhythm factor mode, and increasing the concentration of the selected fluorescent powder with the emission wavelength close to 480 nm; or reducing the concentration of the selected fluorescent powder with the emission wavelength close to 550 nm; setting a low circadian rhythm factor mode, and reducing the concentration of the selected fluorescent powder with the emission wavelength close to 480 nm; or increasing the concentration of the selected fluorescent powder with the emission wavelength close to 550 nm; therefore, the LED lamp which maintains the preset color temperature and has at least two modes of high and low circadian rhythm factors is manufactured by adjusting the concentration of the fluorescent powder.
Wherein, at the predetermined color temperature, the high circadian factor mode has a high circadian factor H, the low circadian factor mode has a low circadian factor L, and the high circadian factor H is 0.35 at maximum when the predetermined color temperature is 2500K; the low circadian factor L is at least 0.24.
Wherein, at the predetermined color temperature, the high circadian factor mode has a high circadian factor H, the low circadian factor mode has a low circadian factor L, and the high circadian factor H is 0.41 at maximum when the predetermined color temperature is 2700K; the low circadian factor L is at least 0.27.
Wherein, at the predetermined color temperature, the high circadian factor mode has a high circadian factor H, the low circadian factor mode has a low circadian factor L, and the high circadian factor H is 0.46 at maximum when the predetermined color temperature is 3000K; the low circadian factor L is at least 0.35.
Wherein, at the predetermined color temperature, the high circadian factor mode has a high circadian factor H, the low circadian factor mode has a low circadian factor L, and the high circadian factor H is 0.71 at maximum when the predetermined color temperature is 4000K; the low circadian factor L is at least 0.51.
Wherein, at the predetermined color temperature, the high circadian factor mode has a high circadian factor H, the low circadian factor mode has a low circadian factor L, and the high circadian factor H is 0.82 at maximum when the predetermined color temperature is 5000K; the low circadian factor L is at least 0.65.
Wherein, at the predetermined color temperature, the high circadian factor mode has a high circadian factor H, the low circadian factor mode has a low circadian factor L, and the high circadian factor H is 0.90 at maximum when the predetermined color temperature is 6000K; the low circadian factor L is at least 0.75.
Wherein, at the predetermined color temperature, the high circadian factor mode has a high circadian factor H, the low circadian factor mode has a low circadian factor L, and the high circadian factor H is 0.94 at maximum when the predetermined color temperature is 6500K; the low circadian factor L is at least 0.80.
Furthermore, the present invention also provides an LED lamp electrically connected to a setting device, comprising: a receiving module, which receives a regulation instruction from the setting device in a wired or wireless way; a control module electrically connected to the receiving module, the control module comprising a circadian rhythm switching module, wherein the circadian rhythm switching module has a high circadian factor mode and a low circadian factor mode; the high circadian rhythm factor mode and the low circadian rhythm factor mode are respectively formed by adjusting the concentration of fluorescent powder; the light-emitting module is electrically connected with the control module and is provided with at least one blue LED and a plurality of fluorescent powders with different emission wavelengths, and the fluorescent powders with different emission wavelengths are used for receiving the light emitted by the blue LED and being excited; therefore, the control module drives the light-emitting module through the regulating instruction, and a light-emitting mode with circadian rhythm factors with different high and low values at a preset color temperature is formed.
Wherein, the control module further comprises: a color temperature switching module for switching different predetermined color temperatures and further selecting to execute the high circadian factor mode or the low circadian factor mode at the predetermined color temperatures.
Wherein, the control module further comprises: a time zone calibration switching module, which uses global positioning system to confirm the time zone, and automatically modulates the corresponding preset color temperature according to the average sunrise and average sunset time of the local season, and further selects the high circadian factor mode or the low circadian factor mode at the preset color temperature.
Wherein, the control module further comprises: a timing switching module for setting multiple switching periods, automatically modulating the corresponding preset color temperature in the switching periods, and further selecting the high circadian factor mode or the low circadian factor mode at the preset color temperature.
Further, the circadian rhythm switching module further comprises: a standard circadian factor mode having a circadian factor magnitude between the high circadian factor mode and the low circadian factor mode at the fixed predetermined color temperature.
In summary, the LED lamp and the method for manufacturing the LED lamp provided by the present invention can achieve the same color temperature of the LED lamp with both extremely high and extremely low circadian factor performance by only modulating the concentration of the phosphor, so that the user can select the circadian factor at the predetermined color temperature according to the environmental or time requirement, so as to improve the vigilance and excitement of the human body by the high circadian factor, or relax the human body by the low circadian factor. By the invention, the lamp not only provides the lighting effect of visual information identification, but also can improve the influence of lighting light on the physiological and psychological systems of human beings. Embodiments of the specific preferred predetermined color temperature, the high circadian factor value, and the low circadian factor value are as exemplified in the preceding paragraphs. The LED lamp can be further provided with a color temperature switching module, a time zone calibration module, a timing switching module and the like, so that the LED lamp has more diversified lighting state setting and selection.
Drawings
Fig. 1 is a flowchart illustrating steps of a method for manufacturing an LED lamp according to a preferred embodiment of the invention.
Fig. 2 is a schematic block diagram of an LED lamp according to a preferred embodiment of the invention.
Fig. 3 is a schematic view (a) of an application of the LED lamp according to the preferred embodiment of the invention.
Fig. 4 is a schematic view of an application of the LED lamp according to the preferred embodiment of the invention (ii).
FIG. 5 is a graph showing a spectral curve of a standard LED at a color temperature of 2700K.
FIG. 6 is a schematic diagram of a spectral curve of an LED lamp according to a preferred embodiment of the present invention at a color temperature of 2700K and in a low circadian factor mode.
FIG. 7 is a schematic diagram of a spectral curve of an LED lamp according to a preferred embodiment of the present invention at a color temperature of 2700K and in a low circadian factor mode (II).
FIG. 8 is a graph of a spectrum curve of a standard LED at a color temperature of 4000K.
FIG. 9 is a schematic diagram (I) of the spectral curve of the LED lamp of the preferred embodiment of the present invention at a color temperature of 4000K in the high circadian factor mode.
FIG. 10 is a schematic diagram of a spectral curve of an LED lamp according to a preferred embodiment of the present invention at a color temperature of 4000K in a high circadian factor mode (II).
FIG. 11 is a schematic diagram (III) of the spectral curve of the LED lamp of the preferred embodiment of the present invention at a color temperature of 4000K and in a high circadian factor mode.
FIG. 12 is a schematic diagram of a spectral curve of an LED lamp of the preferred embodiment of the present invention at a color temperature of 2500K in a low circadian factor mode.
FIG. 13 is a schematic diagram of a spectral curve of an LED lamp according to a preferred embodiment of the present invention at a color temperature of 3000K and in a low circadian factor mode.
FIG. 14 is a schematic diagram of a spectral curve of an LED lamp according to a preferred embodiment of the present invention at a color temperature of 4000K and in a low circadian factor mode.
FIG. 15 is a schematic diagram of a spectral curve of an LED lamp according to a preferred embodiment of the present invention at a color temperature of 4000K in a high circadian factor mode.
FIG. 16 is a schematic diagram of a spectrum curve of an LED lamp in a 5000K color temperature and high circadian factor mode according to a preferred embodiment of the invention.
FIG. 17 is a schematic diagram of a spectrum curve of an LED lamp of the preferred embodiment of the present invention at a 6500K color temperature in a high circadian factor mode.
Description of reference numerals: 1-an LED light fixture; 10-a receiving module; 11-a control module; 111-circadian rhythm switching module; 1111-high circadian factor mode; 1112-low circadian factor mode; 1113-Standard circadian factor mode; 112-color temperature switching module; 113-time zone calibration switching module; 114-a timing switching module; 12-a light emitting module; 2-setting means; S01-S04-step.
Detailed Description
According to medical research, optical information not only provides visual information recognition for human physiological system, but also further affects physical, physiological and psychological behaviors, and when light enters human eyes, non-visual biological effects are generated at the same time. This effect plays a major role in the formation and release of melatonin, cortisol and other hormones, and ultimately affects human health or performance. For example, it should be stimulated to different degrees during the day and night to prevent adverse effects on the human circadian rhythm. In order to simply characterize the non-ocular biological effects of white light sources, the melatonin suppression spectrum is theoretically combined with a spectral luminous sensitivity function, and an influencing factor, i.e., a Circadian rhythm factor (CAF), is defined. For example, in the workplace, white light with high circadian factor values may increase the alertness and excitement of the staff, whereas in the bedroom white light with low circadian factor values is needed to help people relax.
In order to effectively control the circadian factor, the present invention does not address the correlation between the driving current and the circadian factor. The invention further achieves the lighting performance of high and low circadian rhythm factors at a preset color temperature by utilizing the specific gravity adjustment mode of the fluorescent powder. Basically, circadian rhythm factors may be expressed as CAF { [ P (λ) C (λ) d λ }/{ [ P (λ) V (λ) d λ }. Wherein, C (lambda) melanin sensitivity function, P (lambda) is the highest luminous efficiency, V (lambda) is a photopic sensitivity function, and CAF is obtained by dividing luminous flux of the two. Therefore, the invention further provides a manufacturing method of the LED lamp and the LED lamp thereof, which can further set different high and low circadian rhythm factors to express under the same color temperature.
Please refer to fig. 1, which is a flowchart illustrating steps of a method for manufacturing an LED lamp according to a preferred embodiment of the invention. The method for manufacturing the LED lamp comprises the following steps of firstly, providing at least one blue LED (step S01). Phosphors of a plurality of different emission wavelengths are provided and excited to receive light emitted from the blue LED (step S02). Then, a predetermined color temperature is selected, and at least two kinds of phosphors are selected from the phosphors with different emission wavelengths, so that the at least two kinds of phosphors are excited by the blue LED and then mixed to emit light with the predetermined color temperature (step S03). Then, setting a high circadian rhythm factor mode, and increasing the concentration of the selected fluorescent powder with the emission wavelength close to 480 nm; or reducing the concentration of the selected fluorescent powder with the emission wavelength close to 550 nm; setting a low circadian rhythm factor mode, and reducing the concentration of the selected fluorescent powder with the emission wavelength close to 480 nm; or increasing the concentration of the selected fluorescent powder with the emission wavelength close to 550nm (step S04), thereby making the LED lamp maintaining the predetermined color temperature and having at least two modes of high and low circadian factors by adjusting the concentration of the fluorescent powder. By the LED lamp manufacturing method, the LED lamp which can maintain the preset color temperature and at least has the high and low circadian rhythm factor modes can be manufactured by using a mode of adjusting the concentration of the fluorescent powder, so that the LED lamp can meet the use requirements of various purposes and different circadian rhythm factor modes with different time selections, and the applicability of the LED lamp is greatly improved. Moreover, the method of adjusting the concentration and the proportion of the fluorescent powder is different from other adjusting means in the past, so that the method has more effective and accurate adjusting efficiency, and meanwhile, the method can reduce the adjusting deviation caused by the influence of other control conditions by adjusting the light source structure for emitting light.
The following description will be directed to the LED lamp 1 capable of further selecting different circadian factors of different levels at the same color temperature, please refer to fig. 2 to 4, which are block diagrams and application diagrams of the LED lamp according to the preferred embodiment of the present invention. The LED lamp 1 is in communication connection with a setting device 2, and includes a receiving module 10, a control module 11, and at least one light emitting module 12. The receiving module 10 receives a control command from the setting device 2 in a wired or wireless manner, the light emitting module 12 is electrically connected to the receiving module 10, the control module 11 comprises a circadian rhythm switching module 111, wherein the circadian rhythm switching module 111 has a high circadian factor mode 1111 and a low circadian factor mode 1112; the high circadian factor mode 1111 and the low circadian factor mode 1112 are formed by adjusting the concentration of phosphor, respectively. The light emitting module 12 is electrically connected to the control module 11, the light emitting module 12 has at least one blue LED and a plurality of phosphors with different emission wavelengths, and the phosphors with different emission wavelengths are used for receiving light emitted by the blue LED and being excited. Therefore, the control module drives the light emitting module 12 through the regulating instruction, and a light emitting mode with different circadian rhythm factors with different high and low values at a preset color temperature is formed. The LED lamp 1 can provide at least two circadian rhythm factor modes of light emitting states at the same predetermined color temperature, so that the user can select the high circadian rhythm factor mode 1111 or the low circadian rhythm factor mode 1112 at the predetermined color temperature by himself or herself according to time, place or other requirements, and the LED lamp 1 can provide illumination light more suitable for the user.
The control module 11 of the LED lamp 1 may further include a color temperature switching module 112, the color temperature switching module 112 is provided to switch different predetermined color temperatures, and the high circadian factor mode 1111 or the low circadian factor mode 1112 can be further selected to be executed at the predetermined color temperatures. Therefore, a user can send the regulation and control instruction for switching to different color temperatures to the LED lamp 1 through the setting device 2, so that the LED lamp 1 can further switch the color temperatures, and can select to execute the high circadian rhythm factor mode 1111 or the low circadian rhythm factor mode 1112 after switching to the required preset color temperature, thereby improving the use efficiency of the LED lamp 1.
In addition, the control module 11 may further include a time zone calibration switching module 113, wherein the time zone calibration switching module 113 utilizes a global positioning system to determine a time zone, automatically modulates the corresponding predetermined color temperature according to an average sunrise time and an average sunset time of the local season, and further selects the high circadian factor mode 1111 or the low circadian factor mode 1112 at the predetermined color temperature. Therefore, a user can select the time zone in which the LED lamp is located and automatically adjust the preset color temperature according to the average sunrise and sunset time, so that the user can automatically obtain the most appropriate corresponding illumination along with the time change, and after the preset color temperature is changed, the high circadian rhythm factor mode 1111 or the low circadian rhythm factor mode 1112 can be further selected at the preset color temperature, so that the user can automatically select the appropriate circadian rhythm factor mode according to the location and the environment.
In order to improve the flexibility of the user in modulating the LED lamp 1 and set the lighting state according to the preference, the control module 11 may further include a timing switching module 114, wherein the timing switching module 114 is configured to set a plurality of switching periods, automatically modulate the corresponding predetermined color temperature in the plurality of switching periods, and further select the high circadian factor mode 1111 or the low circadian factor mode 1112 at the predetermined color temperature. Therefore, a user can enable the LED lamp 1 to form a required light-emitting state in a specified time interval according to the daily work and rest or the schedule of the user, for example, a certain period is the reading time of the user, and at the moment, the LED lamp 1 can be set to emit light in the switching period by using the lower preset color temperature and the high circadian rhythm factor mode 1111 corresponding to the preset color temperature, so that the reading efficiency of the user is improved.
In addition to the circadian rhythm switching module 111 including the circadian factor mode 1111 and the circadian factor mode 1112 for modulation selection, the circadian rhythm switching module 111 may further include a standard circadian factor mode 1113, and the standard circadian factor mode 1113 has a circadian factor of a magnitude between the circadian factor mode 1111 and the circadian factor mode 1112 at the predetermined fixed color temperature. Therefore, if the user does not need too high or too low circadian rhythm factors, the LED lamp 1 can achieve the required lighting effect.
As shown in fig. 3 and 4, the setting device 2 can be a portable electronic device such as a smart phone or a tablet computer, so as to allow a user to conveniently set a desired lighting state at any time, of course, the setting device 2 can also be a setting structure directly disposed on the LED lamp 1, in this embodiment, the setting device 2 is a tablet computer, and is set as an example for the remote LED lamp 1. The user can select the required color temperature of the emitted light, the corresponding high, standard or low circadian factor mode through the user interface of the setting device 2, or turn on the global positioning system to make the LED lamp 1 automatically adjust the color temperature according to the time zone calibration switching module 113, and automatically set the switching period to make the LED lamp 1 emit light in the set color temperature and circadian factor mode and other light emitting states in the corresponding switching period. For example, after the user selects the predetermined color temperature and the low circadian rhythm factor mode at the center above the picture, the setting device 2 sends the regulating instruction to the LED lamp 1, the receiving module 10 of the LED lamp 1 receives the regulating instruction, and the control module 11 receives the regulating instruction and then drives the light emitting module 12 according to the color temperature value and the low circadian rhythm factor mode selected by the regulating instruction, so that the light emitting module emits light according to the predetermined color temperature and the low circadian rhythm factor mode, thereby providing the required illumination. Or the button for turning on the global positioning mode is selected, the time zone can be positioned and detected by the time zone calibration switching module 113, so that the LED lamp 1 can automatically adjust the light emitting state. Or as shown in fig. 4, the user can set the color temperature and the circadian rhythm factor mode state in the plurality of switching periods by himself, for example, the time interval of the user inputting the plurality of switching periods is 2 hours and 30 minutes, and select the color temperature of 2500K and the standard circadian rhythm factor mode, at this time, the setting device 2 sends the regulation instruction to the LED lamp 1, the receiving module 10 of the LED lamp 1 receives the regulation instruction, and the control module 11 receives the regulation instruction and then drives the light emitting module 12 according to the predetermined color temperature of 2500K and the standard circadian rhythm factor mode selected by the regulation instruction, so that the light emitting module emits light according to the set predetermined color temperature and the standard circadian rhythm factor mode, and provides the required illumination. Of course, besides the regulation and control setting of the LED lamp 1 by the setting device 2 as shown in the figure, the LED lamp 1 can also simply control the high and low circadian factor modes of the LED lamp 1 at the fixed predetermined color temperature by a dip switch structure arranged on the lamp, thereby achieving the setting effect. The user interface of the setting device 2 shown in the figure is only a better schematic illustration, and does not represent the actual interface design.
In practical applications, the LED lamp 1 and the method for manufacturing the LED lamp can have various color temperatures and the corresponding high circadian factor mode 1111 and the low circadian factor mode 1112. Preferably, the LED lamp 1 has the high circadian factor mode 1111 with a high circadian factor H and the low circadian factor mode 1112 with a low circadian factor L at the predetermined color temperature, and different ones of the high circadian factor H and the low circadian factor L are provided at the predetermined color temperatures, for example, when the predetermined color temperature is 2500K, the high circadian factor H is 0.35 at maximum and the low circadian factor L is 0.24 at minimum; the high circadian factor H is at most 0.41 and the low circadian factor L is at least 0.27 at the predetermined color temperature of 2700K; at the predetermined color temperature of 3000K, the high circadian factor Hmax is 0.46, the low circadian factor Lmin is 0.35; the high circadian factor H is at most 0.71 and the low circadian factor L is at least 0.51 at the predetermined color temperature of 4000K; the high circadian factor H is at most 0.82 and the low circadian factor L is at least 0.65 at the predetermined color temperature of 5000K; the high circadian factor Hmax is 0.90 and the low circadian factor Lmin is 0.75 at the predetermined color temperature of 6000K; the high circadian factor H is at most 0.94 and the low circadian factor L is at least 0.80 at a predetermined color temperature of 6500K.
The comparison results of the high circadian factor and the low circadian factor of the LED lamp 1 of the present invention at various color temperatures with the circadian factor (CAF) of sunlight, standard LEDs and various brand lamps on the market at various color temperatures (CCT) are shown in table 1 below.
TABLE 1
As can be seen from table 1, the LED lamp 1 of the present invention has both the high circadian factor mode and the low circadian factor mode at the same predetermined color temperature, so that it can be selectively changed according to the environment or time. It can be seen that the LED lamp 1 can actually have the lighting performance of both the extremely high and the extremely low circadian rhythm factors only by adjusting the phosphor concentration technology in the present invention.
In the following, the LED lamp 1 with partial color temperature is compared with a standard LED, and the derived adjustment results of the LED lamp 1 under different lighting considerations are described. Referring to fig. 5 to 7, fig. 5 is a graph showing a spectrum curve of a standard LED at a Color temperature of 2700K, a Color-rendering index (CRI) >80, and a circadian factor of 0.36. When the major adjustment focus is on reducing the value of the circadian factor, as shown in fig. 6, it shows the spectral curve diagram of the LED lamp 1 manufactured by adjusting the phosphor concentration in the low circadian factor mode with the predetermined color temperature of 2700K, CRI >76, when the low circadian factor is 0.27. It can be seen that by decreasing the phosphor concentration at an emission wavelength near 480nm or increasing the phosphor concentration at an emission wavelength near 550nm, the color temperature can be maintained at 2700K and have a low circadian factor. Further, in order to consider the color rendering problem, the present invention can also make the LED lamp 1 maintaining the same color temperature and color rendering and having the circadian factor smaller than the standard LED by fine tuning the phosphor concentration, as shown in fig. 7, which is the spectral curve of the LED lamp 1 at 2700K with the predetermined color temperature, CRI >80 and the low circadian factor of 0.27.
Referring to FIGS. 8-11, FIG. 8 is a graph of spectra of a standard LED at color temperatures 4000K, CRI >80 and circadian factors of 0.55. Similarly, when the main adjustment focus is to increase the value of the circadian factor, as shown in FIG. 9, it shows the spectral curve diagram of the LED lamp manufactured by adjusting the phosphor concentration of the present invention under the high circadian factor mode with the predetermined color temperature of 4000K, CRI >70, when the high circadian factor is 0.83, so that the color temperature can be maintained at 4000K and the circadian factor can be increased by decreasing the phosphor concentration with the emission wavelength close to 550nm or increasing the phosphor concentration with the emission wavelength close to 480 nm. If the color rendering is required to be both considered when adjusting the concentration of the phosphor, in addition to the circadian rhythm factor, the LED lamp 1 can be adjusted to the spectral curve state shown in fig. 10, which is the spectral curve state of the LED lamp 1 at 4000K where the predetermined color temperature, CRI >80 and the high circadian rhythm factor are 0.63. After the color rendering property with CRI >80 is preliminarily adjusted, the high circadian factor can be adjusted to be high by adjusting the concentration of the fluorescent powder, as shown in FIG. 11, which is a spectral curve graph of the LED lamp 1 at the predetermined color temperature of 4000K, CRI >80 and the high circadian factor coming to 0.71,
please refer to fig. 12 to 14 in combination with fig. 7, which are spectral graphs of the LED lamp 1 in the low circadian factor mode for each predetermined color temperature. FIG. 12 is a graph showing a spectrum of the LED lamp 1 at the predetermined color temperature of 2500K, CRI >80 and the low circadian factor of the low circadian factor mode of 0.24; FIG. 7 is a graph showing the spectrum of the LED lamp 1 at the predetermined color temperature of 2700K, CRI >80 and the low circadian factor of the low circadian factor mode of 0.27; FIG. 13 is a graph showing a spectrum of the LED lamp 1 at the predetermined color temperature of 3000K, CRI >80 and the low circadian factor of the low circadian factor mode of 0.37; FIG. 14 is a graph showing the spectrum of the LED lamp 1 at the predetermined color temperature of 4000K, CRI >80 and the low circadian factor of the low circadian factor mode of 0.51.
Please refer to fig. 15 to 17, which are graphs of spectra of the LED lamp 1 in the high circadian factor mode for each of the predetermined color temperatures. FIG. 15 is a graph showing a spectrum of the LED lamp 1 at the predetermined color temperature of 4000K, CRI >80 and the high circadian factor of the high circadian factor mode of 0.71; FIG. 16 is a graph showing a spectral curve of the LED lamp 1 at the predetermined color temperature of 5000K, CRI >80 and the high circadian factor of the high circadian factor mode of 0.85; FIG. 17 is a graph showing the spectrum of the LED lamp 1 at the predetermined color temperature of 6500K, CRI >80 and the high circadian factor of the high circadian factor mode of 0.96.
In summary, the LED lamp 1 and the method for manufacturing the LED lamp provided by the present invention can make the LED lamp 1 have both very high and very low circadian rhythm factor expressions at the same color temperature by only modulating the phosphor concentration, so that the user can select the circadian rhythm factor at the predetermined color temperature according to the environmental or time requirement, so as to improve the vigilance and excitement of the human body by the high circadian rhythm factor, or relax the human body by the low circadian rhythm factor. By the invention, the lamp not only provides the lighting effect of visual information identification, but also can improve the influence of lighting light on the physiological and psychological systems of human beings. Embodiments of the specific preferred predetermined color temperature, the high circadian factor value, and the low circadian factor value are as exemplified in the preceding paragraphs. The LED lamp 1 can further be provided with a color temperature switching module 112, a time zone calibration module 113, and a timing switching module 114, so that the LED lamp 1 has more diversified lighting status settings and selections.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention; therefore, the present invention is not limited to the embodiments described above, but is to be construed broadly within its scope.
Claims (20)
1. A method for manufacturing an LED lamp is characterized by comprising the following steps:
providing at least one blue LED;
providing a plurality of phosphors with different emission wavelengths, wherein the phosphors with different emission wavelengths are used for receiving the light emitted by the blue LED and being excited;
selecting a preset color temperature, and selecting at least two kinds of fluorescent powder from the fluorescent powder with different emission wavelengths, so that the at least two kinds of fluorescent powder are excited by the blue LED and then mixed to emit light with the preset color temperature; and
setting a high circadian rhythm factor mode, and increasing the concentration of the selected fluorescent powder with the emission wavelength close to 480 nm; or reducing the concentration of the selected fluorescent powder with the emission wavelength close to 550 nm; setting a low circadian rhythm factor mode, and reducing the concentration of the selected fluorescent powder with the emission wavelength close to 480 nm; or increasing the concentration of the selected fluorescent powder with the emission wavelength close to 550 nm; therefore, the LED lamp which maintains the preset color temperature and has at least two modes of high and low circadian rhythm factors is manufactured by adjusting the concentration of the fluorescent powder.
2. The method of claim 1, wherein the high circadian factor mode has a high circadian factor H at the predetermined color temperature, the low circadian factor mode has a low circadian factor L, and the high circadian factor H is at most 0.35 at the predetermined color temperature of 2500K; the low circadian factor L is at least 0.24.
3. The method of claim 1, wherein the high circadian factor mode has a high circadian factor H at the predetermined color temperature, the low circadian factor mode has a low circadian factor L, and the high circadian factor H is at most 0.41 at the predetermined color temperature of 2700K; the low circadian factor L is at least 0.27.
4. The method of claim 1, wherein the high circadian factor mode has a high circadian factor H at the predetermined color temperature, the low circadian factor mode has a low circadian factor L, and the high circadian factor H is at most 0.46 at the predetermined color temperature of 3000K; the low circadian factor L is at least 0.35.
5. The method of claim 1, wherein the high circadian factor mode has a high circadian factor H at the predetermined color temperature, the low circadian factor mode has a low circadian factor L, and the high circadian factor H is at most 0.71 at the predetermined color temperature of 4000K; the low circadian factor L is at least 0.51.
6. The method of claim 1, wherein the high circadian factor mode has a high circadian factor H at the predetermined color temperature, the low circadian factor mode has a low circadian factor L, and the high circadian factor H is at most 0.82 at the predetermined color temperature of 5000K; the low circadian factor L is at least 0.65.
7. The method of claim 1, wherein the high circadian factor mode has a high circadian factor H at the predetermined color temperature, the low circadian factor mode has a low circadian factor L, and the high circadian factor H is at most 0.90 at the predetermined color temperature of 6000K; the low circadian factor L is at least 0.75.
8. The method of claim 1, wherein the high circadian factor mode has a high circadian factor H at the predetermined color temperature, the low circadian factor mode has a low circadian factor L, and the high circadian factor H is at most 0.94 at the predetermined color temperature of 6500K; the low circadian factor L is at least 0.80.
9. An LED lamp for telecommunication connection with a setting device, comprising:
a receiving module, which receives a regulation instruction from the setting device in a wired or wireless way;
a control module electrically connected to the receiving module, the control module comprising a circadian rhythm switching module, wherein the circadian rhythm switching module has a high circadian factor mode and a low circadian factor mode; the high circadian rhythm factor mode and the low circadian rhythm factor mode are respectively formed by adjusting the concentration of fluorescent powder; and
the light-emitting module is electrically connected with the control module and is provided with at least one blue LED and a plurality of fluorescent powders with different emission wavelengths, and the fluorescent powders with the different emission wavelengths are used for receiving the light emitted by the blue LED and being excited; therefore, the control module drives the light-emitting module through the regulating instruction, and a light-emitting mode with circadian rhythm factors with different high and low values at a preset color temperature is formed.
10. The LED lamp of claim 9, wherein the control module further comprises: a color temperature switching module for switching different predetermined color temperatures and further selecting to execute the high circadian factor mode or the low circadian factor mode at the predetermined color temperatures.
11. The LED lamp of claim 9, wherein the control module further comprises: a time zone calibration switching module, which uses global positioning system to confirm the time zone, and automatically modulates the corresponding preset color temperature according to the average sunrise and average sunset time of the local season, and further selects the high circadian factor mode or the low circadian factor mode at the preset color temperature.
12. The LED lamp of claim 9, wherein the control module further comprises: a timing switching module for setting multiple switching periods, automatically modulating the corresponding preset color temperature in the switching periods, and further selecting the high circadian factor mode or the low circadian factor mode at the preset color temperature.
13. The LED lamp of claim 9, wherein the circadian rhythm switching module further comprises: a standard circadian factor mode having a circadian factor magnitude between the high circadian factor mode and the low circadian factor mode at the fixed predetermined color temperature.
14. The LED lamp of claim 9, wherein the high circadian factor mode has a high circadian factor H at the predetermined color temperature, the low circadian factor mode has a low circadian factor L, and the high circadian factor H is at most 0.35 at the predetermined color temperature of 2500K; the low circadian factor L is at least 0.24.
15. The LED lamp of claim 9, wherein the high circadian factor mode has a high circadian factor H at the predetermined color temperature, the low circadian factor mode has a low circadian factor L, and the high circadian factor H is at most 0.41 at the predetermined color temperature of 2700K; the low circadian factor L is at least 0.27.
16. The LED lamp of claim 9, wherein the high circadian factor mode has a high circadian factor H at the predetermined color temperature, the low circadian factor mode has a low circadian factor L, and the high circadian factor H is at most 0.46 at the predetermined color temperature of 3000K; the low circadian factor L is at least 0.35.
17. The LED lamp of claim 9, wherein the high circadian factor mode has a high circadian factor H at the predetermined color temperature, the low circadian factor mode has a low circadian factor L, and the high circadian factor H is at most 0.71 at the predetermined color temperature of 4000K; the low circadian factor L is at least 0.51.
18. The LED lamp of claim 9, wherein the high circadian factor mode has a high circadian factor H at the predetermined color temperature, the low circadian factor mode has a low circadian factor L, and the high circadian factor H is at most 0.82 at the predetermined color temperature of 5000K; the low circadian factor L is at least 0.65.
19. The LED lamp of claim 9, wherein the LED lamp manufacturing method of claim 2, wherein at the predetermined color temperature, the high circadian factor mode has a high circadian factor H, the low circadian factor mode has a low circadian factor L, and the predetermined color temperature is 6000K, the high circadian factor H is at most 0.90; the low circadian factor L is at least 0.75.
20. The LED lamp of claim 9, wherein the high circadian factor mode has a high circadian factor H at the predetermined color temperature, the low circadian factor mode has a low circadian factor L, and the high circadian factor H is at most 0.94 at the predetermined color temperature of 6500K; the low circadian factor L is at least 0.80.
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| TW108104866 | 2019-02-13 | ||
| TW108104866A TWI670446B (en) | 2019-02-13 | 2019-02-13 | Led lighting device manufacturing method and led lighting device thereof |
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| CN111561667A true CN111561667A (en) | 2020-08-21 |
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| CN (1) | CN111561667A (en) |
| DE (1) | DE102019106405A1 (en) |
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| CN112153786A (en) * | 2020-09-09 | 2020-12-29 | 中山和欣灯饰有限公司 | Lighting device with physiological dimming function and dimming method thereof |
| WO2024109751A1 (en) * | 2022-11-21 | 2024-05-30 | 四川世纪和光科技发展有限公司 | Sleep aid lamp and sleep aid lamp control method |
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| TW202030439A (en) | 2020-08-16 |
| DE102019106405A1 (en) | 2020-08-13 |
| TWI670446B (en) | 2019-09-01 |
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