Light source module and lighting device

Abstract

The utility model provides a light source module and a lighting device. The light source module comprises: a first light emitting member for emitting a first white light beam; the spectrum of the first white light beam comprises a light-emitting peak value in a purple wavelength region; the second light emitting part is used for emitting a second white light beam; the spectrum of the second white light beam comprises a light-emitting peak value in a red wavelength region; the processing unit is coupled to the first light-emitting part and the second light-emitting part; the switching unit is coupled to the processing unit, and the switching unit is used for selectively switching to a first mode or a second mode; wherein when the switching unit is switched to the first mode, the processing unit controls at least the first light-emitting part to be lightened; and when the switching unit is switched to the second mode, the processing unit controls the first light-emitting part to be extinguished and the second light-emitting part to be lightened.

Description

Technical Field

[0001] The utility model relates to the field of light sources, and in particular to a light source module and a lighting device. Background Art

[0002] People have the best visual comfort under natural light. The most commonly used white light source on the market is a blue chip coated with yellow phosphor particles that can be excited by blue light. The blue light emitted by the chip and the yellow light emitted by the phosphor particles complement each other to form white light. However, compared with the solar spectrum, the above white light spectrum has lower continuity and integrity, which makes it difficult to meet the needs of healthy lighting.

[0003] Common eye protection lamps in the prior art generally use ultraviolet light chip packaging to make the light source of the lamp to supplement the short-wave ultraviolet light missing in the light spectrum of traditional conventional lamps, so as to make the spectrum continuity close to the solar spectrum to simulate natural daylight.

[0004] However, there is no sunlight in the dark environment at night. During the use at night, the short-wave purple light emitted by the light source of this eye protection lamp will affect the user's day and night cycle, delay sleep, and then cause sleep quality problems, making it difficult to meet the user's healthy lighting needs.

[0005] Therefore, it is necessary to design a new light source module and lighting device to overcome the above defects. Utility Model Content

[0006] The purpose of the utility model is to provide a light source module and a lighting device, wherein the light source module can be switched to a first mode or a second mode; the first mode is to emit a first white light beam with short-wave purple light, so as to simulate natural daylight in daytime use scenarios and provide comfortable eye protection; the second mode is to emit a second white light beam with an enhanced red light component, so as to suppress myopia in night use scenarios, reduce the impact of short-wave purple light on the user's circadian rhythm, and help the healthy use of the eyes.

[0007] To achieve the above-mentioned purpose, the utility model provides a light source module and a lighting device. The light source module includes a first light emitting element for emitting a first white light beam; the spectrum of the first white light beam includes a light emission peak in the purple wavelength region;

[0008] A second light emitting element, for emitting a second white light beam; the spectrum of the second white light beam includes a light emission peak in a red wavelength region;

[0009] A processing unit coupled to the first light emitting element and the second light emitting element;

[0010] A switching unit, coupled to the processing unit, for selectively switching to a first mode or a second mode;

[0011] When the switching unit switches to the first mode, the processing unit controls at least the first light-emitting element to light up; when the switching unit switches to the second mode, the processing unit controls the first light-emitting element to turn off and the second light-emitting element to light up.

[0012] Preferably, the light source module further comprises a substrate, and the plurality of first light emitting elements and second light emitting elements are arranged alternately and at intervals on the substrate, or the plurality of first light emitting elements and second light emitting elements are arranged in parallel and respectively linearly distributed on the substrate.

[0013] Preferably, the substrate has a plurality of substrates, and the plurality of substrates are arranged in a rectangular array.

[0014] Preferably, the color temperature of the first white light beam is different from the color temperature of the second white light beam; the color temperature of the second white light beam is less than 4000K.

[0015] Preferably, the light source module further includes:

[0016] A clock unit, used to detect whether the current time is a daytime period or a nighttime period;

[0017] Wherein, the switching unit is also coupled to the clock unit; when the current time is a daytime period, the switching unit switches to the first mode; when the current time is a nighttime period, the switching unit switches to the second mode.

[0018] Preferably, the light source module further includes:

[0019] A light sensing device, the light sensing device is oriented toward the non-illuminated area to sense ambient light;

[0020] The processing unit is coupled to the light sensing device, and the processing unit further adjusts the illumination parameters of the first light emitting element and / or the second light emitting element based on the sensing value of the light sensing device.

[0021] Preferably, the lighting parameters include luminous intensity and color temperature.

[0022] Preferably, the first light emitting element comprises a purple light chip and a first wavelength conversion element; the purple light chip emits purple light to excite the first wavelength conversion element to generate the first white light beam;

[0023] The luminous peak of the purple light chip is 415nm, and the first wavelength conversion element includes blue fluorescent particles, green fluorescent particles and red fluorescent particles.

[0024] Preferably, the second light emitting element comprises a blue light chip and a second wavelength conversion element, the blue light chip emits blue light to excite the second wavelength conversion element to generate the second white light beam;

[0025] The second wavelength conversion element includes red fluorescent particles with a light emission peak within a wavelength range of 610-680 nm to enhance the red light component in the second white light beam.

[0026] Preferably, a lighting device comprises the light source module.

[0027] Compared with the prior art, the light source module provided by the utility model has a first light-emitting component and a second light-emitting component. Based on the switching unit in the light source module, the user can freely switch to the first mode or the second mode. Among them, the first mode is that at least the first light-emitting component is lit. In the first mode, the light source module can emit a first white light beam with a purple light component to simulate natural daylight, effectively boost spirits and inhibit eye axis growth, inhibit myopia, improve visual comfort, and facilitate use in daytime scenes. In the second mode, only the second light-emitting component is lit, and the light source module emits a second white light beam with a red light component to effectively inhibit myopia, and by extinguishing the first light-emitting component, the purple light component can be reduced to inhibit the secretion of melatonin of the user, avoid affecting the user's circadian rhythm, and meet the user's healthy lighting needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a structural block diagram of a light source module according to an embodiment of the present utility model;

[0029] Figure 2 It is a schematic diagram of the configuration of the first light-emitting element and the second light-emitting element in one embodiment of the utility model;

[0030] Figure 3 It is a schematic diagram of the configuration of the first light-emitting element and the second light-emitting element in one embodiment of the utility model;

[0031] Figure 4 It is a structural block diagram of a light source module according to an embodiment of the utility model. DETAILED DESCRIPTION

[0032] In order to provide a further understanding of the purpose, structure, features, and functions of the present invention, the present invention is described in detail below with reference to the embodiments.

[0033] Certain words are used in the specification and claims to refer to specific components. Those with ordinary knowledge in the field should understand that manufacturers may use different terms to refer to the same component. This specification and claims do not use differences in names as a way to distinguish components, but rather use differences in components' functions as the criteria for distinction. The term "including" mentioned throughout the specification and claims is an open-ended term and should be interpreted as "including but not limited to".

[0034] Reference Figure 1As shown, a schematic diagram of the structure of the light source module 1 of the utility model is disclosed. The light source module 1 proposed by the utility model can be used in a variety of lighting devices, such as table lamps, floor lamps, piano lamps, etc.

[0035] The light source module 1 includes a first light-emitting element 10, a second light-emitting element 11, a processing unit 13 and a switching unit 12. The first light-emitting element 10 is used to emit a first white light beam, and the second light-emitting element 11 is used to emit a second white light beam. The first white light beam has a purple light component, and the spectrum of the first white light beam includes a light emission peak in the purple wavelength region; the second white light beam contains a red light component, and the spectrum of the second white light beam includes a light emission peak in the red wavelength region. The processing unit 13 is coupled to the first light-emitting element 10 and the second light-emitting element 11, and the switching unit 12 is coupled to the processing unit 13. The switching unit 12 is used to selectively switch to the first mode or the second mode.

[0036] Among them, in the daytime use scenario, when the user operates the switching unit 12 to switch to the first mode, the processing unit 13 controls the first light-emitting component 10 to light up, or the processing unit 13 controls the first light-emitting component 10 and the second light-emitting component 11 to light up. In the first mode, preferably only the first light-emitting component 10 is lit, and the light source module 1 emits a first white light beam with a purple light component, which is close to the real solar spectrum, and by supplementing the purple light component, it can effectively boost spirits and inhibit the growth of the eye axis, thereby achieving the effect of slowing down myopia and improving visual comfort. In addition, in the first mode, the first light-emitting component 10 and the second light-emitting component 11 can also be controlled to light up as needed, so that the light source module 1 emits a first white light beam with a purple light component and a red light component, thereby supplementing the purple light component and the red light component lacking in the conventional light source module 1, enhancing the continuity and integrity of the spectrum, approaching the full spectrum of sunlight, and meeting the user's healthy lighting needs.

[0037] In the night use scenario, when the user operates the switching unit 12 to switch to the second mode, the processing unit 13 controls the second light-emitting element 11 to light up, the first light-emitting element 10 to turn off, and the light source module 1 emits a first white light beam with a red light component. By supplementing the red light component, the user's eye energy cells can be effectively activated, eye fatigue can be reduced, and myopia can be alleviated. And by turning off the first light-emitting element 10, the effect of the short-wave purple light component on the user's melatonin secretion can be suppressed, the effect on the user's circadian rhythm can be reduced, and the delay in the user's sleep can be avoided, so as to meet the user's healthy lighting needs.

[0038] It can be seen that based on the switching unit 12 in the light source module 1, it can switch to the first mode (daytime use scenario) or the second mode (nighttime use scenario), so as to supplement the purple light component in the daytime use scenario, simulate natural daylight, suppress myopia and improve visual comfort, and supplement the red light component in the night use scenario, suppress myopia while reducing the impact of purple light on the user's circadian rhythm, thereby promoting healthy use of the eyes.

[0039] In one embodiment, the first light-emitting element 10 is preferably a full-spectrum white light LED lamp bead packaged with a purple light chip, including a purple light chip and a first wavelength conversion element, wherein the first wavelength conversion element includes blue fluorescent particles, green fluorescent particles and red fluorescent particles mixed in a certain proportion. It can be understood that the purple light chip emits purple light to excite the first wavelength conversion element to generate the first white light beam to supplement the purple light required to delay myopia. Preferably, the luminous peak of the purple light chip is 415nm, but the utility model is not limited to this.

[0040] Furthermore, the second light-emitting element 11 is preferably a full-spectrum white light LED lamp bead packaged by a blue light chip, including a blue light chip and a second wavelength conversion element, wherein the second wavelength conversion element includes red fluorescent particles (preferably red fluorescent particles with high photoluminescence quantum efficiency and thermal stability) to enhance the red light component in the second white light beam. The blue light chip emits blue light to excite the second wavelength conversion element to generate the second white light beam to supplement the beneficial red light required to delay myopia. Preferably, the second wavelength conversion element is a mixed fluorescent particle, which contains red fluorescent particles with a luminescent peak in the wavelength range of 610-680nm, but the utility model is not limited thereto. The second light-emitting element 12 using red fluorescent particles with such a peak can show excellent color reproducibility in red areas such as orange, red, and crimson, thereby enhancing the red light component in the second white light beam.

[0041] like Figure 2 As shown, in one embodiment, the light source module 1 further includes a substrate 16, and a plurality of the first light emitting element 10 and the second light emitting element 11 are provided. The plurality of the first light emitting elements 10 and the second light emitting elements 11 are alternately spaced on the substrate 16 in sequence, so that the first white light beam and the second white light beam are evenly irradiated. When the first white light beam and the second white light beam are both lit, the light mixing effect is even and excellent, and the structure is simple, the reliability is high, and there is sufficient space for heat dissipation, which effectively improves the life of the device.

[0042] like Figure 3As shown, in one embodiment, the above-mentioned substrate 16 has multiple substrates 16, and the multiple substrates 16 are arranged in a rectangular array, and the above-mentioned multiple first light-emitting elements 10 and second light-emitting elements 11 are parallel and respectively distributed linearly. In this way, the luminous brightness and luminous area of ​​the light source module 1 can be increased, the uniformity of the lighting can be improved, and a certain uniform luminous flux and illumination can be achieved in the lighting area.

[0043] Furthermore, the color temperature of the first white light beam is different from the color temperature of the second white light beam. When the first light-emitting element 10 and the second light-emitting element 11 are both lit, the first white light beam and the second white light beam are fully mixed, and the overall color temperature can be adjusted by adjusting the driving current ratio of the two light-emitting elements. In addition, the color temperature of the second white light beam is less than 4000K, so that in the second mode (night use scenario), it can effectively avoid the second white light beam emitted by the light source module 1 from having a high color temperature and causing damage to the user's retina.

[0044] Please refer to Figure 4 As shown, in one preferred embodiment, the light source module 1 further includes a clock unit 14, and the clock unit 14 is used to detect whether the current time is a daytime period or a nighttime period. The switching unit 12 is coupled to the clock unit 14. If the current time is a daytime period, the switching unit 12 can automatically switch to the first mode, and the processing unit 13 controls at least the first light-emitting element 10 to light up, so as to simulate natural daylight in the daytime use scenario, supplement the purple light component lacking in the conventional light source in the prior art, and suppress myopia.

[0045] When the clock unit 14 detects that the current time is the night time period, the switching unit 12 can automatically switch to the second mode, and the processing unit 13 controls the second light-emitting component 11 to light up and the first light-emitting component 10 to turn off, thereby supplementing the red light component and suppressing myopia. By turning off the first light-emitting component 10, the influence of the purple light component on the user's circadian rhythm can be reduced. The degree of automation is high, and it is more convenient for users to use.

[0046] Furthermore, in a preferred embodiment, the daytime time period includes a time period before sunset and a dusk time period after sunset. In the daytime usage scenario (first mode), when the current time is the time period before sunset, the processing unit 13 controls only the first light-emitting element 10 to light up to simulate natural daylight; when the current time is the dusk time period, the processing unit 13 controls both the first light-emitting element 10 and the second light-emitting element 11 to light up and adjusts the light-emitting ratio of the first light-emitting element 10 and the second light-emitting element 11 to help the healthy use of the eyes.

[0047] Please refer to Figure 4As shown, in one embodiment, the light source module 1 further includes a light sensing device 15, which is disposed toward the non-illuminated area to sense ambient light. The processing unit 13 is also used to adjust the lighting parameters of the first light-emitting element 10 and / or the second light-emitting element 11 according to the sensing value of the light sensing device 15, so as to achieve the effect of comfortable eye protection. The lighting parameters include luminous intensity and color temperature.

[0048] In summary, the utility model proposes a light source module 1 and a lighting device including the same. When the light source module 1 is used during the daytime, the switching unit 12 is operated to the first mode, and the processing unit 13 controls at least the first light-emitting component 10 to light up, so that the light source module 1 emits a first white light beam having at least short-wave purple light, so as to supplement the purple light component in the daytime use scenario, enhance the continuity and integrity of the spectrum, simulate natural daylight, and boost spirits and inhibit the growth of the eye axis, effectively inhibit myopia, and achieve the effect of comfortable eye protection. When the light source module 1 is used during the night time period, the switching unit 12 is operated to the second mode. At this time, the processing unit 13 controls only the second light-emitting component 11 to light up, so as to supplement the red light component to inhibit myopia, and reduce the influence of the purple light component on the circadian rhythm, avoid delaying the user's sleep, and meet the user's healthy lighting needs.

[0049] The present invention has been described by the above-mentioned relevant embodiments, however, the above-mentioned embodiments are only examples for implementing the present invention. It must be pointed out that the disclosed embodiments do not limit the scope of the present invention. On the contrary, any changes and modifications made without departing from the spirit and scope of the present invention are within the scope of patent protection of the present invention.

Claims

1. A light source module, characterized in that: include: A first light emitting element, configured to emit a first white light beam; the spectrum of the first white light beam includes a light emission peak in a purple wavelength region; A second light emitting element, configured to emit a second white light beam; the spectrum of the second white light beam includes a light emission peak in a red wavelength region; A processing unit coupled to the first light emitting element and the second light emitting element; A switching unit, coupled to the processing unit, for selectively switching to a first mode or a second mode; When the switching unit switches to the first mode, the processing unit controls at least the first light-emitting element to light up; when the switching unit switches to the second mode, the processing unit controls the first light-emitting element to turn off and the second light-emitting element to light up.

2. The light source module according to claim 1, characterized in that: It also includes a substrate, on which a plurality of first light-emitting components and second light-emitting components are alternately and spaced apart, or a plurality of first light-emitting components and second light-emitting components are arranged in parallel and linearly distributed on the substrate.

3. The light source module according to claim 2, characterized in that: The substrate has a plurality of substrates, and the plurality of substrates are arranged in a rectangular array.

4. The light source module according to claim 1, characterized in that: The color temperature of the first white light beam is different from the color temperature of the second white light beam; the color temperature of the second white light beam is less than 4000K.

5. The light source module according to claim 1, characterized in that: Also includes: A clock unit, used to detect whether the current time is a daytime period or a nighttime period; Wherein, the switching unit is also coupled to the clock unit; When the current time is a daytime period, the switching unit switches to the first mode; when the current time is a nighttime period, the switching unit switches to the second mode.

6. The light source module according to claim 1, characterized in that: Also includes: A light sensing device, the light sensing device is oriented toward the non-illuminated area to sense ambient light; The processing unit is coupled to the light sensing device, and the processing unit further adjusts the illumination parameters of the first light emitting element and / or the second light emitting element based on the sensing value of the light sensing device.

7. The light source module according to claim 6, characterized in that: The lighting parameters include luminous intensity and color temperature.

8. The light source module according to claim 1, characterized in that: The first light emitting element comprises a purple light chip and a first wavelength conversion element; the purple light chip emits purple light to excite the first wavelength conversion element to generate the first white light beam; The luminous peak of the purple light chip is 415nm, and the first wavelength conversion element includes blue fluorescent particles, green fluorescent particles and red fluorescent particles.

9. The light source module according to claim 1, characterized in that: The second light emitting element comprises a blue light chip and a second wavelength conversion element, wherein the blue light chip emits blue light to excite the second wavelength conversion element to generate the second white light beam; The second wavelength conversion element includes red fluorescent particles with a light emission peak within a wavelength range of 610-680 nm to enhance the red light component in the second white light beam.

10. A lighting device, characterized in that: Comprising the light source module as described in any one of claims 1-9.

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