Lighting fixtures that change with the seasons and methods for controlling the lighting fixtures

Abstract

The present application relates to a seasonally changing lamp and a control method for the lamp, which can simulate the changes in light in different seasons, different time periods and different temperatures, and meet people's indoor lighting needs throughout the year. The seasonally changing lamp includes: a light source module; a clock device for detecting the current season and the current time period, the current season is spring, summer, autumn and winter, and the current time period is the daytime period and the nighttime period; a temperature sensor for detecting the current temperature; and a control device connected to the light source module, the clock device and the temperature sensor, for controlling the light source module to emit light according to the current season, the current time period and the current temperature.

Description

Technical Field

[0001] The present application belongs to the field of lighting technology, and in particular, relates to a lamp that changes with the seasons and a control method for the lamp. Background Art

[0002] People need different amounts of light throughout the year. For example, the light intensity is high in summer and low in winter. People also need different amounts of light at different times and temperatures in the same season. Although existing lamps have a variety of color temperatures and brightness that can be adjusted, they still cannot automatically adjust the color temperature of lamps according to seasonal changes, simulate the light changes throughout the year, and meet people's lighting needs. Summary of the invention

[0003] In view of this, the embodiments of the present application provide a lamp that changes with the seasons and a control method for the lamp to solve the problem that the lamps in the prior art cannot simulate the changes in light throughout the year.

[0004] A first aspect of an embodiment of the present application provides a lamp that changes with the seasons, comprising: a light source module; a clock device for detecting the current season and the current time period, wherein the current season is spring, summer, autumn and winter, and the current time period is the daytime period and the nighttime period; a temperature sensor for detecting the current temperature; and a control device connected to the light source module, the clock device and the temperature sensor, and for controlling the light source module to emit light according to the current season, the current time period and the current temperature.

[0005] In one embodiment, the light source module is controlled to emit light according to the current season, the current time period and the current temperature, including: if the current season is summer, the current time period is the daytime period or the nighttime period, and the current temperature is greater than or equal to a preset temperature, the light source module is controlled to emit a first white light, and the color temperature of the first white light is greater than or equal to 5000K;

[0006] If the current season is spring, the current time period is daytime, and the current temperature is greater than or equal to the preset temperature, or if the current season is summer, the current time period is daytime, and the current temperature is less than the preset temperature, or if the current season is autumn, the current time period is daytime, and the current temperature is greater than the preset temperature, the light source module is controlled to emit a second white light, and the color temperature of the second white light is 4000K to 5000K;

[0007] If the current season is spring, the current time period is daytime, and the current temperature is lower than the preset temperature, or if the current season is summer, the current time period is nighttime, and the current temperature is lower than the preset temperature, or if the current season is autumn, the current time period is daytime, and the current temperature is lower than the preset temperature, or if the current season is winter, the current time period is daytime, and the current temperature is higher than the preset temperature, then the light source module is controlled to emit a third white light, and the color temperature of the third white light is 3500K to 4000K;

[0008] If the current season is spring, the current time period is night time period, the current temperature is less than the preset temperature or the current temperature is greater than the preset temperature, or if the current season is autumn, the current time period is night time period, the current temperature is less than the preset temperature or the current temperature is greater than the preset temperature, or if the current season is winter, the current time period is day time period, the current temperature is less than the preset temperature, or if the current season is winter, the current time period is night time period, and the current temperature is greater than the preset temperature, then the light source module is controlled to emit the fourth white light, and the color temperature of the fifth white light is 2700K to 3000K;

[0009] If the current season is winter, the current time period is night time, and the current temperature is lower than the preset temperature, the light source module is controlled to emit the fifth white light, and the color temperature of the fifth white light is lower than 2700K.

[0010] In one embodiment, the wavelength of the first white light is 400-700nm, wherein the absolute spectral power of the 435-475nm band is less than 0.8, and the absolute spectral power of the 475-492nm band is greater than 0.7; the wavelength of the second white light is 400-700nm, wherein the absolute spectral power of the 435-475nm band is less than 0.75, and the absolute spectral power of the 475-492nm band is greater than 0.7; the wavelength of the third white light is 400-700nm, wherein the absolute spectral power of the 435-475nm band is less than 0.75, and the absolute spectral power of the 475-492nm band is greater than 0.7 The absolute spectral power of the wavelength band of 475-492nm is less than 0.65, and the absolute spectral power of the wavelength band of 475-492nm is greater than 0.6; the wavelength of the fourth white light is 400-700nm, wherein the absolute spectral power of the wavelength band of 435-475nm is less than 0.5, and the absolute spectral power of the wavelength band of 475-492nm is less than 0.8; the wavelength of the fifth white light is 400-700nm, wherein the absolute spectral power of the wavelength band of 435-475nm is less than 0.5, and the absolute spectral power of the wavelength band of 475-492nm is less than 0.8.

[0011] In one embodiment, in the first white light, the second white light, the third white light, the fourth white light and the fifth white light, the absolute spectral power in the 640-700 nm band is greater than 0.7.

[0012] In one embodiment, the light source module includes a first LED light source, a second LED light source, a third LED light source, a fourth LED light source and a fifth LED light source, and the control device is respectively connected to the first LED light source to the fifth LED light source, and is used to respectively control the first LED light source to emit the first white light, control the second LED light source to emit the second white light, control the third LED light source to emit the third white light, control the fourth LED light source to emit the fourth white light, and control the fifth LED light source to emit the fifth white light.

[0013] In one embodiment, the light source module includes a sixth LED light source and a seventh LED light source, and the control device is connected to the sixth LED light source and the seventh LED light source, and is used to control the sixth LED light source and the seventh LED light source to emit light so that the light emitted by the two can be mixed to form the first white light to the fifth white light.

[0014] In one embodiment, the first LED light source and the second LED light source both include a first light-emitting unit, a second light-emitting unit and a third light-emitting unit, the first light-emitting unit includes a first blue light chip and a first fluorescent film arranged on the light-emitting side of the first blue light chip, the second light-emitting unit includes a second blue light chip and a second fluorescent film arranged on the light-emitting side of the second blue light chip, the third light-emitting unit includes a third blue light chip and a third fluorescent film arranged on the light-emitting side of the third blue light chip, the light emission wavelengths of the first blue light chip, the second blue light chip and the third blue light chip are 440 to 475 nm, and the wavelength of light formed by mixing the light emitted by the first light-emitting unit, the second light-emitting unit and the third light-emitting unit is 400 to 700 nm.

[0015] In one embodiment, the first fluorescent film, the second fluorescent film and the third fluorescent film all include a first film layer, a second film layer and a third film layer, the first film layer includes a first phosphor with a light-emitting wavelength of 480 to 500 nm, the second film layer includes a second phosphor with a light-emitting wavelength greater than 500 nm and less than 620 nm, the third film layer includes a third phosphor with a light-emitting wavelength greater than or equal to 620 nm, and the mass ratio of the first phosphor, the second phosphor and the third phosphor is (25 to 60): (25 to 55): (13 to 60).

[0016] In one embodiment, the first phosphor includes phosphor A with a light-emitting wavelength of 488 to 492 nm, the second phosphor includes phosphor B1 and phosphor B2 with light-emitting wavelengths of 523 to 542 nm, the third phosphor includes phosphor C1, phosphor C2 and phosphor C3 with light-emitting wavelengths of 628 to 681 nm, phosphor D with a light-emitting wavelength of 718 to 722 nm, phosphor E with a light-emitting wavelength of 738 to 742 nm, and phosphor F with a light-emitting wavelength of 793 to 797 nm.

[0017] In one embodiment, in the first LED light source, the phosphor A accounts for 50-85% of the total mass of the first film layer; the mass ratio of the phosphor B1 and the phosphor B2 is (35-85): (25-85), and the phosphor B1 and the phosphor B2 account for 40-77% of the total mass of the second film layer; the mass ratio of the phosphor C1 and the phosphor C2 and the phosphor C3, the phosphor D, the phosphor E, and the phosphor F is (3-20): (1-20): (3-35): (7-50): (7-35): (1-45), and the phosphor C1 and the phosphor C2 and the phosphor C3, the phosphor D, the phosphor E, and the phosphor F account for 50-85% of the total mass of the third film layer;

[0018] In the second LED light source, the phosphor A accounts for 50-75% of the total mass of the first film layer; the mass ratio of the phosphor B1 and the phosphor B2 is (30-65): (20-65), and the phosphor B1 and the phosphor B2 account for 50-75% of the total mass of the second film layer; the mass ratio of the phosphor C1, the phosphor C2, the phosphor C3, the phosphor D, the phosphor E, and the phosphor F is (10-25): (10-25): (10-40): (20-50): (15-40): (20-40), and the phosphor C1, the phosphor C2, the phosphor C3, the phosphor D, the phosphor E, and the phosphor F account for 50-70% of the total mass of the third film layer;

[0019] In the third LED light source, the phosphor A accounts for 25-50% of the total mass of the first film layer; the mass ratio of the phosphor B1 and the phosphor B2 is (25-45): (15-45), and the phosphor B1 and the phosphor B2 account for 35-55% of the total mass of the second film layer; the mass ratio of the phosphor C1 and the phosphor C2 and the phosphor C3, the phosphor D, the phosphor E, and the phosphor F is (12-25): (15-35): (20-40): (30-60): (20-40): (20-50), and the phosphor C1 and the phosphor C2 and the phosphor C3, the phosphor D, the phosphor E, and the phosphor F account for 45-70% of the total mass of the third film layer.

[0020] In the fourth LED light source, the phosphor A accounts for 40-65% of the total mass of the first film layer; the mass ratio of the phosphor B1 and the phosphor B2 is (35-55): (30-55), and the phosphor B1 and the phosphor B2 account for 45-65% of the total mass of the second film layer; the mass ratio of the phosphor C1 and the phosphor C2 and the phosphor C3, the phosphor D, the phosphor E, and the phosphor F is (15-25): (20-45): (30-50): (40-70): (30-50): (30-50), and the phosphor C1 and the phosphor C2 and the phosphor C3, the phosphor D, the phosphor E, and the phosphor F account for 50-70% of the total mass of the third film layer.

[0021] In the fifth LED light source, the phosphor A accounts for 30-60% of the total mass of the first film layer; the mass ratio of the phosphor B1 and the phosphor B2 is (20-55): (10-55), and the phosphor B1 and the phosphor B2 account for 30-60% of the total mass of the second film layer; the mass ratio of the phosphor C1 and the phosphor C2 and the phosphor C3, the phosphor D, the phosphor E, and the phosphor F is (15-35): (20-45): (30-60): (40-90): (30-60): (30-70), and the phosphor C1 and the phosphor C2 and the phosphor C3, the phosphor D, the phosphor E, and the phosphor F account for 55-87% of the total mass of the third film layer.

[0022] In one of the embodiments, in the sixth LED light source, the phosphor A accounts for 50-85% of the total mass of the first film layer; the mass ratio of the phosphor B1 and the phosphor B2 is (35-85): (25-85), and the phosphor B1 and the phosphor B2 account for 40-77% of the total mass of the second film layer; the mass ratio of the phosphor C1, the phosphor C2, the phosphor C3, the phosphor D, the phosphor E, and the phosphor F is (3-20): (1-20): (3-35): (7-50): (7-35): (1-45), and the phosphor C1, the phosphor C2, the phosphor C3, the phosphor D, the phosphor E, and the phosphor F account for 50-85% of the total mass of the third film layer;

[0023] In the seventh LED light source, the phosphor A accounts for 30-60% of the total mass of the first film layer; the mass ratio of the phosphor B1 and the phosphor B2 is (20-55): (10-55), and the phosphor B1 and the phosphor B2 account for 30-60% of the total mass of the second film layer; the mass ratio of the phosphor C1 and the phosphor C2 and the phosphor C3, the phosphor D, the phosphor E, and the phosphor F is (15-35): (20-45): (30-60): (40-90): (30-60): (30-70), and the phosphor C1 and the phosphor C2 and the phosphor C3, the phosphor D, the phosphor E, and the phosphor F account for 55-87% of the total mass of the third film layer.

[0024] A second aspect of an embodiment of the present application provides a method for controlling lamps that change with the seasons, including: detecting the current season and the current time period, the current season including spring, summer, autumn and winter, the current time period including the daytime period and the nighttime period; detecting whether the current temperature is greater than or equal to a preset temperature; and controlling the light source module to emit light based on the current season, the current time period and whether the current temperature is greater than or equal to the preset temperature.

[0025] Compared with the prior art, the embodiments of the present application have the following beneficial effects: the embodiments of the present application provide a lamp that changes with the seasons and a method for controlling the lamp, which can simulate changes in light in different seasons, different time periods, and different temperatures, and meet people's indoor lighting needs throughout the year; moreover, the light wavelength emitted by the embodiments of the present application is visible light in different bands within the range of 400 to 700 nm. Compared with traditional white light lighting, the wavelengths of the first white light and the second white light are more complete, the absolute spectral power of each band is closer to natural light, and the lighting is comfortable. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0027] Figure 1 is a schematic diagram of the structure of a lamp that changes with the seasons provided in an embodiment of the present application;

[0028] Figure 2 is a schematic structural diagram of a first LED light source provided in an embodiment of the present application;

[0029] Figure 3 is a spectrum diagram of the first LED light source provided in the embodiment of the present application; wherein, Figure 3 Figure a in the figure is the spectrum diagram of the first light-emitting unit, Figure 3 Figure b in the figure is the spectrum diagram of the second light-emitting unit. Figure 3 Figure c in the figure is the spectrum diagram of the third light-emitting unit. Figure 3 Figure d in the figure is a composite spectrum of the first light-emitting unit to the third light-emitting unit. Figure 3 Figure e in the figure is the spectrum formed by the dual blue light chips;

[0030] Figure 4 is a flow chart of the implementation of the method for controlling lamps that change with seasons provided in an embodiment of the present application;

[0031] Figure 5 is a spectrum diagram (5644K) of the first white light provided in the embodiment of the present application;

[0032] Figure 6 is a spectrum diagram of the second white light provided in the embodiment of the present application (4737K);

[0033] Figure 7 is a spectrum diagram of the third white light (3870K) provided in the embodiment of the present application;

[0034] Figure 8 is a spectrum diagram (2830K) of the fourth white light provided in the embodiment of the present application;

[0035] Fig. 9 This is a spectrum diagram of the fifth white light (2260K) provided in an embodiment of the present application.

[0036] Reference numerals:

[0037] 10. First light-emitting unit; 11. First blue light chip; 12. First fluorescent film; 20. Second light-emitting unit; 21. Second blue light chip; 22. Second fluorescent film; 30. Third light-emitting unit; 31. Third blue light chip; 32. Third fluorescent film. DETAILED DESCRIPTION

[0038] In the following description, specific details such as specific system structures, technologies, etc. are provided for the purpose of illustration rather than limitation, so as to provide a thorough understanding of the embodiments of the present application. However, it should be clear to those skilled in the art that the present application may also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to prevent unnecessary details from obstructing the description of the present application.

[0039] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0040] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0041] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0042] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0043] The changes in sunlight throughout the year play a very important role in the natural rhythm of human body and physiological regulation. As more and more social activities of modern humans are carried out indoors, although some lamps can adjust different color temperatures according to needs, they still cannot simulate sunlight throughout the year and cannot meet people's lighting needs in different seasons.

[0044] Based on the problems existing in the prior art, the embodiments of the present application provide a lamp that changes with the seasons and a control method for the lamp. On the one hand, by detecting the current season, the current time period and the current temperature, the changes in sunlight in the corresponding period are simulated to meet people's indoor lighting needs throughout the year and conform to human's natural work and rest patterns and physiological regulation; on the other hand, the wavelength of light emitted by the embodiments of the present application is 400-700nm, which is more in line with natural light and has a more complete spectrum wavelength than traditional white light. Among them, the light intensity of cyan light and blue light is 95% similar to the spectral power in natural light, and the effect of simulating sunlight is better.

[0045] like Figure 1 As shown, the first aspect of the embodiment of the present application provides a lamp that changes with the seasons, which is used in indoor lighting places to simulate the different lighting of sunlight throughout the year to meet the lighting needs of people indoors. Its structure mainly includes a light source module, a clock device, a temperature sensor and a control device, and the control device is electrically connected to the light source module, the clock device and the control device respectively. Among them, the clock device is used to detect the current season and the current time period, the current season is spring, summer, autumn and winter, and the current time period is the daytime period and the nighttime period; the temperature sensor is used to detect the current temperature; and the control device is used to control the light source module to emit light according to the current season, the current time period and the current temperature.

[0046] Among them, the lamp is provided with a shell structure by default, and the shell structure is used to accommodate the light source module, the clock device and the temperature sensor, and is used to fix the light source module, the clock device and the temperature sensor in an indoor place. The control device can be arranged inside or outside the shell. The shell structure of the lamp is not limited. The installation between the shell and the light source module, the clock device, the temperature sensor and the control device can refer to the prior art. After the control device of the embodiment of the present application receives the electrical signal sent by the clock device and the temperature sensor, the circuit structure of the light source module is controlled by current or voltage. The specific circuit structure of the control device is not limited.

[0047] In one embodiment, the clock device is a timing circuit that can record the dates of the Gregorian and lunar calendars of a year and the clock of a day. The specific circuit structure can refer to the prior art and is not specifically limited in the embodiments of the present application. Considering that my country divides the four seasons according to the lunar calendar, the changing law of sunlight is more in line with the lunar calendar date. Therefore, the four seasons can be divided by the beginning of spring, summer, autumn and winter on the lunar calendar date as the starting time of each season, and the color temperature change of the lamp can be controlled within the corresponding date.

[0048] In one embodiment, the temperature sensor is used to detect the outdoor temperature in a natural environment. Since the color temperature of sunlight in natural environments with different temperatures is different in the same season and the same time period, for example, the color temperature of sunlight on a cloudy day is low and the light intensity is weak, while the color temperature of sunlight on a sunny day is high and the light intensity is high. Therefore, by detecting the current temperature, the color temperature of indoor lamps can be further adjusted to be more in line with the natural luminescence law of sunlight.

[0049] The embodiment of the present application adjusts the light source module to different color temperatures by detecting the current season, current time period and current temperature. The principle is as follows: the current date and current time period are detected by a clock device, and the season corresponding to the current date is obtained according to the four seasons, and the time period is divided into daytime period and nighttime period according to the day and night law; the current temperature is detected by a temperature sensor, and it is determined whether the current temperature is greater than or equal to the preset temperature. Since 25°C is the most suitable temperature for the human body, the preset temperature can be set to 25°C; the control device controls the light source module to emit corresponding light according to the detected current season, current time period and current temperature.

[0050] Specifically, the light emitted by the light source is controlled according to the current season, current time period and current temperature as follows:

[0051] If the current season is summer, the current time period is daytime or nighttime, and the current temperature is greater than or equal to a preset temperature, the light source module is controlled to emit a first white light, and the color temperature of the first white light is greater than or equal to 5000K;

[0052] If the current season is spring, the current time period is daytime, and the current temperature is greater than or equal to the preset temperature, or if the current season is summer, the current time period is daytime, and the current temperature is less than the preset temperature, or if the current season is autumn, the current time period is daytime, and the current temperature is greater than the preset temperature, the light source module is controlled to emit a second white light, and the color temperature of the second white light is 4000K to 5000K;

[0053] If the current season is spring, the current time period is daytime, and the current temperature is lower than the preset temperature, or if the current season is summer, the current time period is nighttime, and the current temperature is lower than the preset temperature, or if the current season is autumn, the current time period is daytime, and the current temperature is lower than the preset temperature, or if the current season is winter, the current time period is daytime, and the current temperature is higher than the preset temperature, then the light source module is controlled to emit a third white light, and the color temperature of the third white light is 3500K to 4000K;

[0054] If the current season is spring, the current time period is night time period, the current temperature is less than the preset temperature or the current temperature is greater than the preset temperature, or if the current season is autumn, the current time period is night time period, the current temperature is less than the preset temperature or the current temperature is greater than the preset temperature, or if the current season is winter, the current time period is day time period, the current temperature is less than the preset temperature, or if the current season is winter, the current time period is night time period, and the current temperature is greater than the preset temperature, then the light source module is controlled to emit the fourth white light, and the color temperature of the fifth white light is 2700K to 3000K;

[0055] If the current season is winter, the current time period is night time, and the current temperature is lower than the preset temperature, the light source module is controlled to emit a fifth white light, and the color temperature of the fifth white light is lower than or equal to 2700K.

[0056] As described above, when the clock device recognizes that the current season is spring, the temperature sensor recognizes that the current temperature is lower than 25°C, and emits the third white light during the daytime period, and emits the fourth white light during the nighttime period; when the temperature sensor recognizes that the current temperature is higher than 25°C, it emits the second white light during the daytime period, and emits the fourth white light during the nighttime period;

[0057] When the clock device recognizes that the current season is summer, the temperature sensor recognizes that the current temperature is lower than 25°C, and emits the second white light during the daytime period and the third white light during the nighttime period; when the temperature sensor recognizes that the current temperature is higher than 25°C, it emits the first white light during the daytime period and the third white light during the nighttime period;

[0058] When the clock device recognizes that the current season is autumn, the temperature sensor recognizes that the current temperature is lower than 25°C, and emits the third white light during the daytime and the fourth white light during the nighttime; when the temperature sensor recognizes that the current temperature is higher than 25°C, it emits the second white light during the daytime and the fourth white light during the nighttime;

[0059] When the clock device recognizes that the current season is winter, the temperature sensor recognizes that the current temperature is lower than 25°C, and emits a fourth white light during the day and a fifth white light during the night; when the temperature sensor recognizes that the current temperature is higher than 25°C, it emits a third white light during the day and a fourth white light during the night.

[0060] The embodiments of the present application simulate the lighting changes in the natural environment in different seasons, temperatures and time periods of the year by setting white light of multiple different color temperatures, so as to meet people's indoor lighting needs throughout the year and conform to the natural routine and physiological regulation of human beings.

[0061] Wherein, for the optical parameters of the first white light, the second white light, the third white light, the fourth white light and the fifth white light, the wavelength is a continuous spectrum of 400 to 700 nm.

[0062] In the first white light, the absolute spectral power of the 435-475nm band is less than 0.8, and the absolute spectral power of the 475-492nm band is greater than 0.7;

[0063] In the second white light, the absolute spectral power of the 435-475nm band is less than 0.75, and the absolute spectral power of the 475-492nm band is greater than 0.7;

[0064] In the third white light, the absolute spectral power of the 435-475nm band is less than 0.65, and the absolute spectral power of the 475-492nm band is greater than 0.6;

[0065] In the fourth white light, the absolute spectral power of the 435-475nm band is less than 0.5, and the absolute spectral power of the 475-492nm band is less than 0.8;

[0066] In the fifth white light, the absolute spectral power in the 435-475nm band is less than 0.5, and the absolute spectral power in the 475-492nm band is less than 0.8.

[0067] The wavelength ranges of various colors of light in visible light are as follows: the wavelength of red light is 622-700nm, the wavelength of orange light is 597-622nm, the wavelength of yellow light is 577-597nm, the wavelength of green light is 492-577nm, the wavelength of cyan light is 475-492nm, the wavelength of blue light is 435-475nm, and the wavelength of purple light is 380-435nm. It can be seen that the 475-492nm band in the embodiment of the present application corresponds to cyan light, and the 435-475nm band corresponds to blue light. The absolute spectral power of the first white light, the second white light, the third white light, the fourth white light, and the fifth white light provided in the embodiment of the present application fit the illumination spectrum of the natural environment. For example, the cyan light and blue light with higher optical power in the first white light fit the spectral power of summer illumination, and the cyan light and blue light with lower optical power in the fifth white light also fit the spectral power of winter illumination.

[0068] In the embodiment of the present application, in the first white light, the second white light, the third white light, the fourth white light and the fifth white light, the absolute spectral power of the 640-700nm band is greater than 0.7. The 640-700nm band in the embodiment of the present application corresponds to red light. Since the red light is imaged on the back of the retina, the saturated red light in the embodiment of the present application can adjust the visual focal length, prevent the eye axis from lengthening, promote eye blood circulation, prevent eye fatigue, and improve the health level of light.

[0069] In an embodiment of the present application, the light source module includes a first LED light source, a second LED light source, a third LED light source, a fourth LED light source and a fifth LED light source, and the control device is respectively connected to the first LED light source to the fifth LED light source, and is used to respectively control the first LED light source to emit a first white light, control the second LED light source to emit a second white light, control the third LED light source to emit a third white light, control the fourth LED light source to emit a fourth white light, and control the fifth LED light source to emit a fifth white light.

[0070] The light source module includes a sixth LED light source and a seventh LED light source. The control device controls the mixed light emitted by the sixth LED light source and the seventh LED light source to meet the color temperature of the first white light to the fifth white light. The color temperature of the sixth LED light source is greater than or equal to 5000K, and the color temperature of the seventh LED light source is less than or equal to 2700K.

[0071] The first to fifth LED light sources are controlled to emit first to fifth white lights respectively, or the light emitted by the sixth to seventh LED light sources are controlled to be mixed to form the first to fifth white lights, so as to simulate the changes in light color temperature of the natural environment in different seasons, temperatures and time periods of the year, meet people's indoor lighting needs throughout the year, and conform to the natural laws of life and physiological regulation of human beings.

[0072] In the embodiment of the present application, the structures of the first LED light source to the seventh LED light source are the same, and the only difference is that the color temperatures of the two are different. The embodiment of the present application takes the structure of the first LED light source as an example for explanation. Figure 2 As shown, the structure of the first LED light source mainly includes a first light-emitting unit 10, a second light-emitting unit 20 and a third light-emitting unit 30. In this embodiment, there are multiple arrangements of the first light-emitting unit 10, the second light-emitting unit 20 and the third light-emitting unit 30. In one embodiment, the first light-emitting unit 10, the second light-emitting unit 20 and the third light-emitting unit 30 are spaced apart and distributed in a triangle, and can adopt packaging methods such as 3535 and 5050 to form a triangular layout; in another embodiment, the first light-emitting unit 10, the second light-emitting unit 20 and the third light-emitting unit 30 are arranged in a straight line, and can adopt a 5630 packaging method. In other embodiments, the first light-emitting unit 10, the second light-emitting unit 20 and the third light-emitting unit 30 can also adopt other arrangements.

[0073] In a specific embodiment, the first light-emitting unit 10 includes a first blue light chip 11 and a first fluorescent film 12, the second light-emitting unit 20 includes a second blue light chip 21 and a second fluorescent film 22, and the third light-emitting unit 30 includes a third blue light chip 31 and a third fluorescent film 32. The fluorescent film is arranged on the light-emitting side of the blue light chip, and is used to convert the blue light emitted by the blue light chip into white light. The emission wavelengths of the first blue light chip 11, the second blue light chip 21 and the third blue light chip 31 are all 440 to 475 nm, preferably 440 to 460 nm. In the embodiment of the present application, the emission wavelengths of the first blue light chip 11, the second blue light chip 21 and the third blue light chip 31 may be the same or different, and those skilled in the art may select according to actual needs. The wavelength of the light formed by mixing the light emitted by the first light-emitting unit 10, the second light-emitting unit 20 and the third light-emitting unit 30 is 400 to 700 nm.

[0074] Specifically, the first fluorescent film, the second fluorescent film and the third fluorescent film all include a first film layer, a second film layer and a third film layer arranged in sequence along the light emitting direction, the first film layer includes a first fluorescent powder with a light emission wavelength of 480 to 500 nm, the second film layer includes a second fluorescent powder with a light emission wavelength greater than 500 nm and less than 620 nm, the third film layer includes a third fluorescent powder with a light emission wavelength greater than or equal to 620 nm, and the mass ratio of the first fluorescent powder, the second fluorescent powder and the third fluorescent powder is (25 to 60): (25 to 55): (13 to 60). The film thickness of any one of the first film layer, the second film layer and the third film layer is 0.06 mm to 0.15 mm.

[0075] Furthermore, the first phosphor includes phosphor A having a light-emitting wavelength of 488 to 492 nm, the second phosphor includes phosphor B1 and phosphor B2 having light-emitting wavelengths of 523 to 542 nm, the third phosphor includes phosphor C1, phosphor C2 and phosphor C3 having light-emitting wavelengths of 628 to 681 nm, phosphor D having a light-emitting wavelength of 718 to 722 nm, phosphor E having a light-emitting wavelength of 738 to 742 nm, and phosphor F having a light-emitting wavelength of 793 to 797 nm.

[0076] When the first LED light source to the fifth LED light source are controlled to emit the first white light to the fifth white light respectively, in the first LED light source, the phosphor A accounts for 50 to 85% of the total mass of the first film layer;

[0077] The mass ratio of phosphor B1 to phosphor B2 is (35-85):(25-85), and phosphor B1 and phosphor B2 account for 40-77% of the total mass of the second film layer;

[0078] The mass ratio of phosphor C1, phosphor C2, phosphor C3, phosphor D, phosphor E and phosphor F is (3-20): (1-20): (3-35): (7-50): (7-35): (1-45), and phosphor C1, phosphor C2, phosphor C3, phosphor D, phosphor E and phosphor F account for 50-85% of the total mass of the third film layer;

[0079] In the second LED light source, the phosphor A accounts for 50-75% of the total mass of the first film layer;

[0080] The mass ratio of phosphor B1 to phosphor B2 is (30-65):(20-65), and phosphor B1 and phosphor B2 account for 50-75% of the total mass of the second film layer;

[0081] The mass ratio of phosphor C1, phosphor C2, phosphor C3, phosphor D, phosphor E and phosphor F is (10-25): (10-25): (10-40): (20-50): (15-40): (20-40), and phosphor C1, phosphor C2, phosphor C3, phosphor D, phosphor E and phosphor F account for 50-70% of the total mass of the third film layer;

[0082] In the third LED light source, the phosphor A accounts for 25 to 50% of the total mass of the first film layer;

[0083] The mass ratio of phosphor B1 to phosphor B2 is (25-45):(15-45), and phosphor B1 and phosphor B2 account for 35-55% of the total mass of the second film layer;

[0084] The mass ratio of phosphor C1, phosphor C2, phosphor C3, phosphor D, phosphor E and phosphor F is (12-25): (15-35): (20-40): (30-60): (20-40): (20-50), and phosphor C1, phosphor C2, phosphor C3, phosphor D, phosphor E and phosphor F account for 45-70% of the total mass of the third film layer.

[0085] In the fourth LED light source, the phosphor A accounts for 40 to 65% of the total mass of the first film layer;

[0086] The mass ratio of phosphor B1 to phosphor B2 is (35-55): (30-55), and phosphor B1 and phosphor B2 account for 45-65% of the total mass of the second film layer;

[0087] The mass ratio of phosphor C1, phosphor C2, phosphor C3, phosphor D, phosphor E and phosphor F is (15-25): (20-45): (30-50): (40-70): (30-50): (30-50), and phosphor C1, phosphor C2, phosphor C3, phosphor D, phosphor E and phosphor F account for 50-70% of the total mass of the third film layer.

[0088] In the fifth LED light source, the phosphor A accounts for 30-60% of the total mass of the first film layer;

[0089] The mass ratio of phosphor B1 to phosphor B2 is (20-55):(10-55), and phosphor B1 and phosphor B2 account for 30-60% of the total mass of the second film layer;

[0090] The mass ratio of phosphor C1, phosphor C2, phosphor C3, phosphor D, phosphor E and phosphor F is (15-35): (20-45): (30-60): (40-90): (30-60): (30-70), and phosphor C1, phosphor C2, phosphor C3, phosphor D, phosphor E and phosphor F account for 55-87% of the total mass of the third film layer.

[0091] When the sixth LED light source to the seventh LED light source are controlled to emit the first white light to the fifth white light respectively,

[0092] In the sixth LED light source, the phosphor A accounts for 50-85% of the total mass of the first film layer;

[0093] The mass ratio of phosphor B1 to phosphor B2 is (35-85): (25-85) phosphor B1 and phosphor B2 account for 40-77% of the total mass of the second film layer;

[0094] The mass ratio of phosphor C1, phosphor C2, phosphor C3, phosphor D, phosphor E and phosphor F is (3-20): (1-20): (3-35): (7-50): (7-35): (1-45), and phosphor C1, phosphor C2, phosphor C3, phosphor D, phosphor E and phosphor F account for 50-85% of the total mass of the third film layer;

[0095] In the seventh LED light source, the phosphor A accounts for 30-60% of the total mass of the first film layer;

[0096] The mass ratio of phosphor B1 to phosphor B2 is (20-55):(10-55), and phosphor B1 and phosphor B2 account for 30-60% of the total mass of the second film layer;

[0097] The mass ratio of phosphor C1, phosphor C2, phosphor C3, phosphor D, phosphor E and phosphor F is (15-35): (20-45): (30-60): (40-90): (30-60): (30-70), and phosphor C1, phosphor C2, phosphor C3, phosphor D, phosphor E and phosphor F account for 55-87% of the total mass of the third film layer.

[0098] By controlling the mass ratio of the first phosphor, the second phosphor, and the third phosphor within the above range, the peak shape and wavelength of the peak in the white light spectrum generated by the embodiment of the present application can be adjusted, and the optical power of visible light of different wavelengths in the white light can be adjusted to adjust the energy density of visible light of different wavelengths in the white light, thereby adjusting the effective band of the white light, further widening the effective band of the white light, or adjusting the wavelength of the effective band.

[0099] Specifically, the first phosphor may include GaYAG yellow-green powder, the second phosphor may include nitride blue-green powder, and the third phosphor may include nitride, Y3AL 12 :C and fluoride. Phosphors of various luminescent wavelengths can be directly purchased from the market.

[0100] Compared with mixing three phosphor formulas into one layer, the three-layer phosphor film provided in the embodiment of the present application can make the overall light loss of the light source relatively small and the light efficiency higher. It is worth noting that the color temperature of the light source can be adjusted accordingly by changing the phosphor mass ratio, concentration and film thickness. Under the conditions of a certain phosphor ratio and film thickness, the concentration of the first phosphor, the second phosphor and the third phosphor determines the color temperature of the white light generated by the first LED light source and the second LED light source. The higher the concentration, the lower the color temperature, and the lower the concentration, the higher the color temperature.

[0101] For example, Figure 5 As shown, in the embodiment of the present application, a first LED light source with a color temperature of 5644K is used to generate a first white light. The horizontal axis is the light emission wavelength, and the vertical axis is the absolute spectral power.

[0102] In the first LED light source, the phosphor A is Y3(Al,Ga)5O12 with a light emission wavelength of 490nm, the mass of the phosphor A is (45-65), and the concentration of the phosphor A is 60-85%, that is, after being mixed with silica gel, the phosphor A accounts for 60-85% of the total mass of the first film layer;

[0103] Phosphor B1 uses BaSi2O2N2 with a light emission wavelength of 525nm, and phosphor B2 uses BaSi2O2N2 with a light emission wavelength of 540nm. The mass ratio of phosphor B1 to phosphor B2 is (55-70): (45-70), and the concentration is 60-85%. That is, after being mixed with the film-forming material (such as silica gel), phosphor B1 and phosphor B2 account for 60-85% of the total mass of the second film layer.

[0104] Phosphor C1 uses (Ca, Sr)AlSiN3 with a light emission wavelength of 630nm, phosphor C2 uses (Ca, Sr)AlSiN3 with a light emission wavelength of 660nm, phosphor C3 uses (Ca, Sr)AlSiN3 with a light emission wavelength of 679nm, phosphor D uses (Ca, Sr)AlSiN3 with a light emission wavelength of 720nm, phosphor E uses (Ca, Sr)AlSiN3 with a light emission wavelength of 740nm, and phosphor F uses (Ca, Sr)AlSiN3 with a light emission wavelength of 760nm. The phosphor is (Ca, Sr)AlSiN3 with a diameter of 795nm, and the mass ratio of phosphor C1, phosphor C2, phosphor C3, phosphor D, phosphor E and phosphor F is (3-10): (3-10): (3-25): (7-30): (7-20): (1-30), and the concentration is 40-60%. That is, after mixing with silica gel, phosphor C1, phosphor C2, phosphor C3, phosphor D, phosphor E and phosphor F account for 40-60% of the total mass of the third film layer.

[0105] For example, Figure 6 As shown, in the embodiment of the present application, a second LED light source with a color temperature of 4737K is used to generate a second white light. The horizontal axis is the light emission wavelength, and the vertical axis is the absolute spectral power.

[0106] In the second LED light source, the phosphor A is Y3(Al, Ga)5O12 with a light emission wavelength of 490 nm, the mass of the phosphor A is (25-40), and the concentration of the phosphor A is 60-75%, that is, after being mixed with silica gel, the phosphor A accounts for 60-75% of the total mass of the first film layer;

[0107] Phosphor B1 uses BaSi2O2N2 with a luminescent wavelength of 525nm, and phosphor B2 uses BaSi2O2N2 with a luminescent wavelength of 540nm. The mass ratio of phosphor B1 to phosphor B2 is (40-55): (30-55), and the concentration is 60-70%. That is, after mixing with silica gel, phosphor B1 and phosphor B2 account for 60-70% of the total mass of the second film layer.

[0108] Phosphor C1 uses (Ca, Sr)AlSiN3 with a light emission wavelength of 630nm, phosphor C2 uses (Ca, Sr)AlSiN3 with a light emission wavelength of 660nm, phosphor C3 uses (Ca, Sr)AlSiN3 with a light emission wavelength of 679nm, phosphor D uses (Ca, Sr)AlSiN3 with a light emission wavelength of 720nm, phosphor E uses (Ca, Sr)AlSiN3 with a light emission wavelength of 740nm, and phosphor F uses (Ca, Sr)AlSiN3 with a light emission wavelength of 7 95nm (Ca, Sr)AlSiN3, the mass ratio of phosphor C1, phosphor C2, phosphor C3, phosphor D, phosphor E and phosphor F is (10-15): (10-15): (10-20): (20-30): (15-25): (1-30), and the concentration is 55-70%. That is, after mixing with silica gel, phosphor C1, phosphor C2, phosphor C3, phosphor D, phosphor E and phosphor F account for 55-70% of the total mass of the third film layer.

[0109] For example, Figure 7 As shown, in the embodiment of the present application, a third LED light source with a color temperature of 3870K is used to generate a third white light. The horizontal axis is the light emission wavelength, and the vertical axis is the absolute spectral power.

[0110] In the third LED light source, the phosphor A is Y3(Al, Ga)5O12 with a light emission wavelength of 490 nm, the mass of the phosphor A is (25-35), and the concentration of the phosphor A is 25-40%, that is, after being mixed with silica gel, the phosphor A accounts for 25-40% of the total mass of the first film layer;

[0111] Phosphor B1 uses BaSi2O2N2 with a luminescent wavelength of 525nm, and phosphor B2 uses BaSi2O2N2 with a luminescent wavelength of 540nm. The mass ratio of phosphor B1 to phosphor B2 is (25-30): (15-20), and the concentration is 60-70%. That is, after mixing with silica gel, phosphor B1 and phosphor B2 account for 35-45% of the total mass of the second film layer.

[0112] Phosphor C1 uses (Ca, Sr)AlSiN3 with a light emission wavelength of 630nm, phosphor C2 uses (Ca, Sr)AlSiN3 with a light emission wavelength of 660nm, phosphor C3 uses (Ca, Sr)AlSiN3 with a light emission wavelength of 679nm, phosphor D uses (Ca, Sr)AlSiN3 with a light emission wavelength of 720nm, phosphor E uses (Ca, Sr)AlSiN3 with a light emission wavelength of 740nm, and phosphor F uses (Ca, Sr)AlSiN3 with a light emission wavelength of 79 5nm (Ca, Sr)AlSiN3, the mass ratio of phosphor C1, phosphor C2, phosphor C3, phosphor D, phosphor E and phosphor F is (12-17): (15-20): (20-20): (30-40): (20-25): (30-30), and the concentration is 40-61%. That is, after mixing with silica gel, phosphor C1, phosphor C2, phosphor C3, phosphor D, phosphor E and phosphor F account for 40-61% of the total mass of the third film layer.

[0113] For example, Figure 8 As shown, in the embodiment of the present application, a fourth LED light source with a color temperature of 2830K is used to generate a fourth white light. The horizontal axis is the light emission wavelength, and the vertical axis is the absolute spectral power.

[0114] In the fourth LED light source, the phosphor A is Y3(Al, Ga)5O12 with a light emission wavelength of 490 nm, the mass of the phosphor A is (30-40), and the concentration of the phosphor A is 50-65%, that is, after being mixed with silica gel, the phosphor A accounts for 50-65% of the total mass of the first film layer;

[0115] Phosphor B1 uses BaSi2O2N2 with a luminescent wavelength of 525nm, and phosphor B2 uses BaSi2O2N2 with a luminescent wavelength of 540nm. The mass ratio of phosphor B1 to phosphor B2 is (45-55): (40-55), and the concentration is 55-60%. That is, after mixing with silica gel, phosphor B1 and phosphor B2 account for 55-60% of the total mass of the second film layer.

[0116] Phosphor C1 uses (Ca, Sr)AlSiN3 with a light emission wavelength of 630nm, phosphor C2 uses (Ca, Sr)AlSiN3 with a light emission wavelength of 660nm, phosphor C3 uses (Ca, Sr)AlSiN3 with a light emission wavelength of 679nm, phosphor D uses (Ca, Sr)AlSiN3 with a light emission wavelength of 720nm, phosphor E uses (Ca, Sr)AlSiN3 with a light emission wavelength of 740nm, and phosphor F uses (Ca, Sr)AlSiN3 with a light emission wavelength of 79 5nm (Ca, Sr)AlSiN3, the mass ratio of phosphor C1, phosphor C2, phosphor C3, phosphor D, phosphor E and phosphor F is (15-20): (20-30): (30-40): (40-50): (30-40): (30-40), and the concentration is 50-70%. That is, after mixing with silica gel, phosphor C1, phosphor C2, phosphor C3, phosphor D, phosphor E and phosphor F account for 50-70% of the total mass of the third film layer.

[0117] For example, Fig. 9 As shown, in the embodiment of the present application, a fifth LED light source with a color temperature of 2260K is used to generate the fifth white light. The horizontal axis is the light emission wavelength, and the vertical axis is the absolute spectral power.

[0118] In the fifth LED light source, the phosphor A is Y3(Al, Ga)5O12 with a light emission wavelength of 490 nm, the mass of the phosphor A is (7-20), and the concentration of the phosphor A is 30-45%, that is, after being mixed with silica gel, the phosphor A accounts for 30-45% of the total mass of the first film layer;

[0119] Phosphor B1 uses BaSi2O2N2 with a luminescent wavelength of 525nm, and phosphor B2 uses BaSi2O2N2 with a luminescent wavelength of 540nm. The mass ratio of phosphor B1 to phosphor B2 is (20-40): (10-30), and the concentration is 30-45%. That is, after mixing with silica gel, phosphor B1 and phosphor B2 account for 30-45% of the total mass of the second film layer.

[0120] Phosphor C1 uses (Ca, Sr)AlSiN3 with a light emission wavelength of 630nm, phosphor C2 uses (Ca, Sr)AlSiN3 with a light emission wavelength of 660nm, phosphor C3 uses (Ca, Sr)AlSiN3 with a light emission wavelength of 679nm, phosphor D uses (Ca, Sr)AlSiN3 with a light emission wavelength of 720nm, phosphor E uses (Ca, Sr)AlSiN3 with a light emission wavelength of 740nm, and phosphor F uses (Ca, Sr)AlSiN3 with a light emission wavelength of 79 5nm (Ca, Sr)AlSiN3, the mass ratio of phosphor C1, phosphor C2, phosphor C3, phosphor D, phosphor E and phosphor F is (25-35): (30-45): (40-60): (60-90): (45-60): (50-70), and the concentration is 65-87%. That is, after mixing with silica gel, phosphor C1, phosphor C2, phosphor C3, phosphor D, phosphor E and phosphor F account for 65-87% of the total mass of the third film layer.

[0121] In the embodiment of the present application, a sixth LED light source and a seventh LED light source with two different color temperatures are mixed to form first to fifth white lights. By way of example, the first LED light source and the fifth LED light source can be mixed to obtain the first to fifth white lights. The specific formulas of the sixth LED light source and the seventh LED light source refer to the first LED light source and the fifth LED light source, which will not be repeated here.

[0122] Another implementation method provided by the embodiment of the present application uses a dual blue light chip to excite the first white light to the fifth white light of the full spectrum, specifically using a fourth blue light chip with a light-emitting wavelength of 452 to 457 nm, a fifth blue light chip with a light-emitting wavelength of 463 to 467 nm, and phosphors excited by the fourth blue light chip and the fifth blue light chip, the phosphors include a first green powder with a light-emitting wavelength of 510 to 514 nm, a second green powder with a light-emitting wavelength of 532 to 537 nm, and a red powder with a light-emitting wavelength of 652-658 nm, and the mass percentage of the first green powder is 5%-10%, the mass percentage of the second green powder is 82%-90%, and the mass percentage of the red powder is 3%-10%. The light-emitting wavelength of the dual blue light chip and the percentage of the phosphor are specifically referred to the prior art, and through the spectral coupling between the two blue light chips and the phosphors, the emitted white light spectrum can also be close to the natural spectrum.

[0123] However, compared with the prior art, the spectrum of white light generated by the white light LED light source using dual blue light chips has a sharp peak, the light intensity changes rapidly along the wavelength direction, and the fluctuation is obvious. It has a high light intensity only in a small wavelength range before and after the peak. The light intensity of visible light in other bands is low, and the color temperature is difficult to adjust, and the phototherapy effect is poor. The white light generated by the light source of the embodiment of the present application has the characteristics of a broad spectrum. The spectrum of white light has a flat peak in the wavelength range of 400 to 700nm. In the wide band before and after the peak, the visible light power and energy density are similar. When the white light is used in phototherapy, the effective band is wide and the phototherapy effect is good.

[0124] For example, Figure 3 As shown, Figure 3 (a) is the spectrum diagram of the first light-emitting unit, Figure 3 (b) is the spectrum diagram of the second light-emitting unit. Figure 3 (c) is the spectrum of the third light-emitting unit. The mixed light emitted by the three light-emitting units can form Figure 3 The spectrum shown in (d) is Figure 3 (e) in the figure is a spectrum diagram formed by a dual blue light chip. As can be seen from the figure, the light source module composed of the first light-emitting unit, the second light-emitting unit and the third light-emitting unit, and the light source module composed of the fourth light-emitting unit and the fifth light-emitting unit can emit full-spectrum white light. The spectrum diagram of white light has a flat peak in the wavelength range of 400 to 700nm, and in a wide band before and after the peak, the optical power value of the red light part in the composite spectrum of the first light-emitting unit to the third light-emitting unit is significantly higher than the optical power value of the red light part in the spectrum formed by the dual blue light chip. The full-spectrum white light emitted by the light source module composed of the first light-emitting unit, the second light-emitting unit and the third light-emitting unit is closer to natural light.

[0125] like Figure 4 As shown, based on the structure of the above-mentioned lamp, the second aspect of the embodiment of the present application provides a control method of the lamp that changes with the seasons, simulating the color temperature change of sunlight throughout the year, and the control method includes the following steps:

[0126] S101, detecting the current season and the current time period, wherein the current season includes spring, summer, autumn and winter, and the current time period includes a daytime period and a nighttime period;

[0127] A clock device is used to detect the current date. Taking into account that my country's lunar calendar date is more in line with the changing pattern of the four seasons, the beginning of spring, beginning of summer, beginning of autumn and beginning of winter in the lunar calendar are set as the starting time points of each season. The current season can be determined by the lunar date detected by the clock device; a clock device is used to detect the current time period. According to the law of day and night, a day period can be divided into a daytime period and a nighttime period. For example, the daytime period is from 6 a.m. to 7 p.m., and the nighttime period is from 7 p.m. to 6 a.m. It should be noted that the time periods can also be divided according to the law of day and night in different seasons.

[0128] S102, detecting whether the current temperature is greater than or equal to a preset temperature;

[0129] The temperature sensor is used to detect the current temperature. The temperature sensor can be used to detect the outdoor temperature in a natural environment. In the same season and the same period, the color temperature of sunlight is also different. When the outdoor temperature is relatively high, it can be considered that the color temperature of sunlight is relatively high. When the outdoor temperature is relatively low, it can be considered that the color temperature of sunlight is relatively low. For example, the color temperature of the sun on a cloudy day is low, and the color temperature of the sun on a sunny day is high.

[0130] By judging whether the current temperature is greater than or equal to the preset temperature, it is further judged whether the current temperature is high or low. Since the most comfortable temperature for the human body is 25 degrees Celsius, 25 degrees Celsius is used as the standard for dividing high and low temperatures. When the current temperature is greater than or equal to 25 degrees Celsius, the color temperature of the lamp is greater than the color temperature of the lamp when the current temperature is less than 25 degrees Celsius.

[0131] S103 . Control the light source module to emit light according to the current season, the current time period, and whether the current temperature is greater than or equal to a preset temperature.

[0132] According to the current season, current time period and current temperature, the light source module is controlled to emit light, simulating the sunlight conditions throughout the year to meet people's lighting needs. Specifically,

[0133] If the current season is summer, the current time period is daytime or nighttime, and the current temperature is greater than or equal to a preset temperature, the light source module is controlled to emit a first white light, and the color temperature of the first white light is greater than or equal to 5000K;

[0134] If the current season is spring, the current time period is daytime, and the current temperature is greater than or equal to the preset temperature, or if the current season is summer, the current time period is daytime, and the current temperature is less than the preset temperature, or if the current season is autumn, the current time period is daytime, and the current temperature is greater than the preset temperature, the light source module is controlled to emit a second white light, and the color temperature range of the second white light is 4000K to 5000K;

[0135] If the current season is spring, the current time period is daytime, and the current temperature is lower than the preset temperature, or if the current season is summer, the current time period is nighttime, and the current temperature is lower than the preset temperature, or if the current season is autumn, the current time period is daytime, and the current temperature is lower than the preset temperature, or if the current season is winter, the current time period is daytime, and the current temperature is higher than the preset temperature, then the light source module is controlled to emit a third white light, and the color temperature range of the third white light is 3500K to 4000K;

[0136] If the current season is spring, the current time period is night time period, the current temperature is less than the preset temperature or the current temperature is greater than the preset temperature, or if the current season is autumn, the current time period is night time period, the current temperature is less than the preset temperature or the current temperature is greater than the preset temperature, or if the current season is winter, the current time period is day time period, the current temperature is less than the preset temperature, or if the current season is winter, the current time period is night time period, and the current temperature is greater than the preset temperature, then control the light source module to emit a fourth white light, and the color temperature of the fourth white light is 2700K to 3000K;

[0137] If the current season is winter, the current time period is night time, and the current temperature is lower than the preset temperature, the light source module is controlled to emit the fifth white light, and the color temperature of the fifth white light is lower than 2700K.

[0138] For the first white light to the fifth white light, the wavelengths are all 400 to 700 nm, the wavelengths are complete, and the spectrum of each band is close to the natural spectrum. For example, Figures 5 to 9 The spectra of the first to fifth white lights are listed, among which,

[0139] The color temperature of the first white light is 5644K, the absolute spectral power of the 435-475nm band is greater than 0.8, and the absolute spectral power of the 475-492nm band is greater than 0.7;

[0140] The color temperature of the second white light is 4737K, the absolute spectral power of the 435-475nm band is less than 0.7, and the absolute spectral power of the 475-492nm band is less than 0.6;

[0141] The color temperature of the third white light is 3870K, the absolute spectral power of the 435-475nm band is less than 0.6, and the absolute spectral power of the 475-492nm band is less than 0.5;

[0142] The color temperature of the fourth white light is 2830K, the absolute spectral power of the 435-475nm band is less than 0.5, and the absolute spectral power of the 475-492nm band is less than 0.4;

[0143] The color temperature of the fifth white light is 2260K, the absolute spectral power in the 435-475nm band is less than 0.4, and the absolute spectral power in the 475-492nm band is less than 0.3.

[0144] The 475-492nm band in the embodiment of the present application corresponds to cyan light, and the 435-475nm band corresponds to blue light. The absolute spectral powers of the first white light to the fifth white light provided in the embodiment of the present application are consistent with the light spectrum of the natural environment. For example, the cyan light and blue light with higher light power in the first white light are consistent with the spectral power of summer light, and the cyan light and blue light with lower light power in the fifth white light are also consistent with the spectral power of winter light.

[0145] In the embodiment of the present application, the absolute spectral power of the 640-700nm band in the first white light, the second white light, the third white light, the fourth white light and the fifth white light is greater than 0.8. The 640-700nm band in the embodiment of the present application corresponds to red light. Since the red light is imaged on the back of the retina, the saturated red light in the embodiment of the present application can adjust the visual focal length, prevent the eye axis from lengthening, and has the effect of promoting eye blood circulation and preventing eye fatigue.

[0146] It should be understood that the size of the serial numbers of the steps in the above embodiments does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0147] The embodiments described above are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, a person skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application, and should all be included in the protection scope of the present application.

Claims

1. A lamp that changes with the seasons, characterized in that: include: Light source module; A clock device, used for detecting a current season and a current time period, wherein the current season is spring, summer, autumn and winter, and the current time period is a daytime period and a nighttime period; Temperature sensor, used to detect the current temperature; as well as A control device, connected to the light source module, the clock device and the temperature sensor, for controlling the light source module to emit light according to the current season, the current time period and the current temperature; The controlling the light source module to emit light according to the current season, current time and current temperature includes: If the current season is summer, the current time period is daytime or nighttime, and the current temperature is greater than or equal to a preset temperature, the light source module is controlled to emit a first white light, and the color temperature of the first white light is greater than or equal to 5000K; If the current season is spring, the current time period is daytime, and the current temperature is greater than or equal to the preset temperature, or if the current season is summer, the current time period is daytime, and the current temperature is less than the preset temperature, or if the current season is autumn, the current time period is daytime, and the current temperature is greater than the preset temperature, the light source module is controlled to emit a second white light, and the color temperature of the second white light is 4000K to 5000K; If the current season is spring, the current time period is daytime, and the current temperature is lower than the preset temperature, or if the current season is summer, the current time period is nighttime, and the current temperature is lower than the preset temperature, or if the current season is autumn, the current time period is daytime, and the current temperature is lower than the preset temperature, or if the current season is winter, the current time period is daytime, and the current temperature is higher than the preset temperature, then the light source module is controlled to emit a third white light, and the color temperature of the third white light is 3500K to 4000K; If the current season is spring, the current time period is night time period, the current temperature is less than the preset temperature or the current temperature is greater than the preset temperature, or if the current season is autumn, the current time period is night time period, the current temperature is less than the preset temperature or the current temperature is greater than the preset temperature, or if the current season is winter, the current time period is day time period, the current temperature is less than the preset temperature, or if the current season is winter, the current time period is night time period, and the current temperature is greater than the preset temperature, then control the light source module to emit a fourth white light, and the color temperature of the fourth white light is 2700K to 3000K; If the current season is winter, the current time period is night time, and the current temperature is lower than the preset temperature, the light source module is controlled to emit a fifth white light, and the color temperature of the fifth white light is lower than or equal to 2700K; The light source module includes a first LED light source, a second LED light source, a third LED light source, a fourth LED light source and a fifth LED light source, and the control device is connected to the first LED light source to the fifth LED light source, respectively, and is used to control the first LED light source to emit the first white light, control the second LED light source to emit the second white light, control the third LED light source to emit the third white light, control the fourth LED light source to emit the fourth white light, and control the fifth LED light source to emit the fifth white light; Or the light source module includes a sixth LED light source and a seventh LED light source, and the control device is connected to the sixth LED light source and the seventh LED light source, and is used to control the sixth LED light source and the seventh LED light source to emit light, so that the light emitted by the two can be mixed to form the first white light to the fifth white light; The first LED light source to the seventh LED light source all include a first light-emitting unit, a second light-emitting unit and a third light-emitting unit, the first light-emitting unit includes a first blue light chip and a first fluorescent film arranged on the light-emitting side of the first blue light chip, the second light-emitting unit includes a second blue light chip and a second fluorescent film arranged on the light-emitting side of the second blue light chip, the third light-emitting unit includes a third blue light chip and a third fluorescent film arranged on the light-emitting side of the third blue light chip, the light emission wavelengths of the first blue light chip, the second blue light chip and the third blue light chip are 440-475nm, and the wavelength of the light emitted by the first light-emitting unit, the second light-emitting unit and the third light-emitting unit is 400-700nm; The first fluorescent film, the second fluorescent film and the third fluorescent film all include a first film layer, a second film layer and a third film layer which are stacked in sequence along the light emitting direction, the first film layer includes a first phosphor with a light emitting wavelength of 480 to 500 nm, the second film layer includes a second phosphor with a light emitting wavelength greater than 500 nm and less than 620 nm, the third film layer includes a third phosphor with a light emitting wavelength greater than or equal to 620 nm, the mass ratio of the first phosphor, the second phosphor and the third phosphor is (25 to 60): (25 to 55): (13 to 60), and the film thickness of any one of the first film layer, the second film layer and the third film layer is 0.06 mm to 0.15 mm.

2. The seasonally changing lamp according to claim 1, characterized in that: The wavelength of the first white light is 400-700 nm, wherein the absolute spectral power in the 435-475 nm band is less than 0.8, and the absolute spectral power in the 475-492 nm band is greater than 0.7; The wavelength of the second white light is 400-700 nm, wherein the absolute spectral power in the 435-475 nm band is less than 0.75, and the absolute spectral power in the 475-492 nm band is greater than 0.7; The wavelength of the third white light is 400-700 nm, wherein the absolute spectral power in the 435-475 nm band is less than 0.65, and the absolute spectral power in the 475-492 nm band is greater than 0.6; The wavelength of the fourth white light is 400-700 nm, wherein the absolute spectral power in the 435-475 nm band is less than 0.5, and the absolute spectral power in the 475-492 nm band is less than 0.8; The wavelength of the fifth white light is 400-700 nm, wherein the absolute spectral power in the 435-475 nm band is less than 0.4, and the absolute spectral power in the 475-492 nm band is less than 0.

7.

3. The seasonally changing lamp according to claim 1, characterized in that: In the first white light, the second white light, the third white light, the fourth white light and the fifth white light, the absolute spectral power in the 640-700 nm band is greater than 0.

7.

4. The seasonally changing lamp according to claim 1, characterized in that: The first phosphor includes phosphor A with a light-emitting wavelength of 488 to 492 nm, the second phosphor includes phosphor B1 and phosphor B2 with light-emitting wavelengths of 523 to 542 nm, the third phosphor includes phosphor C1, phosphor C2 and phosphor C3 with light-emitting wavelengths of 628 to 681 nm, phosphor D with a light-emitting wavelength of 718 to 722 nm, phosphor E with a light-emitting wavelength of 738 to 742 nm, and phosphor F with a light-emitting wavelength of 793 to 797 nm.

5. The seasonally changing lamp according to claim 4, characterized in that: In the first LED light source, the phosphor A accounts for 50-85% of the total mass of the first film layer; The mass ratio of the phosphor B1 to the phosphor B2 is (35-85):(25-85), and the phosphor B1 and the phosphor B2 account for 40-77% of the total mass of the second film layer; The mass ratio of the phosphor C1, phosphor C2, phosphor C3, phosphor D, phosphor E, and phosphor F is (3-20): (1-20): (3-35): (7-50): (7-35): (1-45), and the phosphor C1, phosphor C2, phosphor C3, phosphor D, phosphor E, and phosphor F account for 50-85% of the total mass of the third film layer; In the second LED light source, the phosphor A accounts for 50-75% of the total mass of the first film layer; The mass ratio of the phosphor B1 to the phosphor B2 is (30-65): (20-65), and the phosphor B1 and the phosphor B2 account for 50-75% of the total mass of the second film layer; The mass ratio of the phosphor C1, phosphor C2, phosphor C3, phosphor D, phosphor E, and phosphor F is (10-25): (10-25): (10-40): (20-50): (15-40): (20-40), and the phosphor C1, phosphor C2, phosphor C3, phosphor D, phosphor E, and phosphor F account for 50-70% of the total mass of the third film layer; In the third LED light source, the phosphor A accounts for 25-50% of the total mass of the first film layer; The mass ratio of the phosphor B1 to the phosphor B2 is (25-45): (15-45), and the phosphor B1 and the phosphor B2 account for 35-55% of the total mass of the second film layer; The mass ratio of the phosphor C1, phosphor C2, phosphor C3, phosphor D, phosphor E, and phosphor F is (12-25): (15-35): (20-40): (30-60): (20-40): (20-50), and the phosphor C1, phosphor C2, phosphor C3, phosphor D, phosphor E, and phosphor F account for 45-70% of the total mass of the third film layer; In the fourth LED light source, the phosphor A accounts for 40-65% of the total mass of the first film layer; The mass ratio of the phosphor B1 to the phosphor B2 is (35-55): (30-55), and the phosphor B1 and the phosphor B2 account for 45-65% of the total mass of the second film layer; The mass ratio of the phosphor C1, phosphor C2, phosphor C3, phosphor D, phosphor E, and phosphor F is (15-25): (20-45): (30-50): (40-70): (30-50): (30-50), and the phosphor C1, phosphor C2, phosphor C3, phosphor D, phosphor E, and phosphor F account for 50-70% of the total mass of the third film layer; In the fifth LED light source, the phosphor A accounts for 30-60% of the total mass of the first film layer; The mass ratio of the phosphor B1 to the phosphor B2 is (20-55):(10-55), and the phosphor B1 and the phosphor B2 account for 30-60% of the total mass of the second film layer; The mass ratio of the phosphor C1, phosphor C2, phosphor C3, phosphor D, phosphor E, and phosphor F is (15-35): (20-45): (30-60): (40-90): (30-60): (30-70), and the phosphor C1, phosphor C2, phosphor C3, phosphor D, phosphor E, and phosphor F account for 55-87% of the total mass of the third film layer.

6. The seasonally changing lamp according to claim 4, characterized in that: In the sixth LED light source, the phosphor A accounts for 50-85% of the total mass of the first film layer; The mass ratio of the phosphor B1 to the phosphor B2 is (35-85):(25-85), and the phosphor B1 and the phosphor B2 account for 40-77% of the total mass of the second film layer; The mass ratio of the phosphor C1, phosphor C2, phosphor C3, phosphor D, phosphor E, and phosphor F is (3-20): (1-20): (3-35): (7-50): (7-35): (1-45), and the phosphor C1, phosphor C2, phosphor C3, phosphor D, phosphor E, and phosphor F account for 50-85% of the total mass of the third film layer; In the seventh LED light source, the phosphor A accounts for 30-60% of the total mass of the first film layer; The mass ratio of the phosphor B1 to the phosphor B2 is (20-55):(10-55), and the phosphor B1 and the phosphor B2 account for 30-60% of the total mass of the second film layer; The mass ratio of the phosphor C1, phosphor C2, phosphor C3, phosphor D, phosphor E, and phosphor F is (15-35): (20-45): (30-60): (40-90): (30-60): (30-70), and the phosphor C1, phosphor C2, phosphor C3, phosphor D, phosphor E, and phosphor F account for 55-87% of the total mass of the third film layer.

7. A method for controlling a seasonally changing lamp according to any one of claims 1 to 6, characterized in that: include: Detecting a current season and a current time period, wherein the current season includes spring, summer, autumn and winter, and the current time period includes a daytime period and a nighttime period; Detect whether the current temperature is greater than or equal to the preset temperature; The light source module is controlled to emit light according to the current season, the current time period and whether the current temperature is greater than or equal to a preset temperature.

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