Ultrahigh solar spectrum similarity simulation light source, lamp and circuit
By using simulated light sources of deep red light sources and white light sources, the problem of existing spectral evaluation algorithms ignoring near violet and deep red light is solved, achieving high-accurate solar spectrum fitting, enhancing the health benefits of lighting devices.
Patent Information
- Application Number
- CN202510167571.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-14
- Publication Date
- 2025-06-27
AI Technical Summary
The existing light source spectral evaluation algorithm ignores near-violet and deep red light when evaluating the fit of the solar spectrum, and cannot accurately evaluate the fit of the solar spectrum. The full spectrum scheme lacks a weak component intensity of 670nm-780nm.
A simulated light source composed of a dark red light source and a white light source. The dark red light source includes an electroluminescent component and a photoluminescent component. The luminescent material contains a dark red phosphor, and is paired with a conventional full-spectral light source with GFC ≥95%.
High accuracy fitting of the solar spectrum is achieved, which increases the health benefits of lighting devices, protects eye health, and improves the eyes' perception of color contrast.
Smart Images
Figure CN120212446A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of light sources, and particularly to a simulated light source with ultra-high solar spectrum similarity, a lamp, and a circuit. Background Art
[0002] With the continuous evolution of lighting technology, people's demand for LED lighting has gradually evolved from the initial brightness and luminous efficacy to the pursuit of natural light environment and its impact on human physical and mental health. Therefore, lamps that can simulate the effect of natural sunlight have begun to appear in the public eye and have gradually become a research hotspot in the lighting industry. How to scientifically evaluate the fitting degree between a light source spectrum and the solar spectrum is the basis for evaluating its performance and application value.
[0003] Currently, there are mainly three algorithm coefficients for evaluating the fitting degree of a light source spectrum with respect to the solar spectrum: the GFC (Goodness-of-Fit Coefficient), the ASD (Average Spectral Difference) proposed by Luminus Devices, and the MC (Match Coefficient) of the determination coefficient proposed in the SGS standard.
[0004]
[0005] However, the applicable range of GFC is 430 - 687 nm, and the applicable range of ASD is 425 - 690 nm. When evaluating the fitting degree of a solar-like spectrum, the near-ultraviolet light and deep red light are ignored, and the fitting degree of the solar spectrum cannot be accurately evaluated. Therefore, the present invention will use the MC value of the SGS standard as the first evaluation index for the solar-like fitting degree of the light source spectrum.
[0006] In addition, in the existing full-spectrum solutions, the component intensity in the range of 670 nm - 780 nm is weak or basically absent, while the deep red light in the range of 670 nm - 900 nm has some special health benefits - it can regulate the metabolism and aging of mitochondria on the retina, increase the production of adenosine triphosphate (ATP) and reduce pro-inflammatory reactive oxygen species (ROS), playing a role in slowing down vision decline, and at the same time can significantly improve the eye's perception of color contrast. Summary of the Invention
[0007] To solve the above technical problems, in the first aspect of the present application, a simulated light source with ultra-high solar spectrum similarity is proposed, including:
[0008] A deep red light source and a white light source, and the deep red light source and the white light source form a fitting sunlight containing deep red light; the deep red light source includes: an electroluminescent component, a photoluminescent component, and a bracket.
[0009] An electroluminescent component and a photoluminescent component are provided on a bracket, and the photoluminescent component is coated on the outside of the electroluminescent component; wherein, the luminescent material of the photoluminescent component includes a deep red phosphor.
[0010] The electroluminescent component includes an LED chip, and the LED chip is a near-ultraviolet blue chip with a luminous wavelength range of 380 - 430 nm.
[0011] Specifically, the LED chip includes one or more near-ultraviolet blue chips with a luminous wavelength range of 380 - 430 nm.
[0012] Specifically, the LED chip includes one or more near-ultraviolet blue chips with a luminous wavelength range of 380 - 420 nm.
[0013] Specifically, the peak wavelength range of the deep red phosphor emission is 600 - 1000 nm, and the full width at half maximum range is 35 - 160 nm.
[0014] Specifically, the deep red phosphor includes at least one of the following: aluminate, gallate, molybdate, tungstate, silicate, nitride, oxynitride, sulfide.
[0015] Specifically, it further includes: a reflector cup; a deep red light source and a white light source are arranged in the reflector cup.
[0016] Specifically, it further includes: a reflector cup; the number of reflector cups ≥ 2, a deep red light source is arranged in the first reflector cup; one or more white light sources are arranged in each of the remaining reflector cups, and the white light source includes a full-spectrum white light with a color temperature of 2700K - 6500K.
[0017] Specifically, the deep red light source in the reflector cup is encapsulated by SMD or COB.
[0018] In the second aspect of the present application, a lamp with an ultra-high solar spectrum similarity simulation light source is provided, including: an upper light-emitting diffusion plate, an outer frame, a heat dissipation component, a light-emitting light source, wherein the light-emitting light source has the above-mentioned ultra-high solar spectrum similarity simulation light source.
[0019] In the third aspect of the present application, a circuit of an ultra-high solar spectrum similarity simulation light source is provided, including: a rectifier circuit, a constant current dimming control circuit, a DC-DC control circuit, an auxiliary power supply circuit, a radio frequency communication module, and an LED light source; the rectifier circuit is respectively connected to the constant current dimming control circuit and the auxiliary power supply circuit; the auxiliary power supply circuit is configured to supply power to the radio frequency communication module; the radio frequency communication module transmits control signals to the constant current dimming control circuit and the DC-DC control circuit respectively; the constant current dimming control circuit is connected to the DC-DC control circuit; the DC-DC control circuit is connected to the LED light source.
[0020] The beneficial effects of the embodiments of the present application compared with the prior art are as follows:
[0021] The health benefits of the lighting device are increased, which helps to protect the user's eyesight and improve the eyes' perception of color contrast, relieve the growth of refractive eyes, produce a hyperopia effect, and inhibit lens-induced myopia, thus protecting eye health;
[0022] The specially tuned deep red light spectrum lamp beads, combined with a conventional full-spectrum light source with GFC≥95%, can make up for the weak or basically non-existent components in the 380-430nm and 670-780nm ranges in the existing full-spectrum solutions;
[0023] Multiple packaging technology solutions can cooperate with the dimming algorithm to achieve various effects. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] The drawings are included to provide a further understanding of the embodiments and are incorporated into and constitute a part of this specification. The drawings illustrate the embodiments and, together with the description, are used to explain the principles of the present application. Other embodiments and many of the expected advantages of the embodiments will be readily apparent as they become better understood by reference to the following detailed description. The elements of the drawings are not necessarily to scale with each other. The same reference numerals refer to corresponding similar components.
[0025] Figure 1 is the spectrum of a deep red light phosphor light source excited by a near-ultraviolet blue light chip of an ultra-high solar spectrum similarity simulation light source according to an embodiment of the present application;
[0026] Figure 2 is the spectrum of the deep red light source of an ultra-high solar spectrum similarity simulation light source according to an embodiment of the present application Figure 1 ;
[0027] Figure 3 is the spectrum of the deep red light source of an ultra-high solar spectrum similarity simulation light source according to an embodiment of the present application Figure 2 ;
[0028] Figure 4 is the SMD schematic diagram of an ultra-high solar spectrum similarity simulation light source according to a specific embodiment of the present application;
[0029] Figure 5 is the COB schematic diagram of an ultra-high solar spectrum similarity simulation light source according to a specific embodiment of the present application;
[0030] Figure 6 is the 4000K full-spectrum diagram of an ultra-high solar spectrum similarity simulation light source according to a specific embodiment of the present application;
[0031] Figure 7 It is the overall light spectrum diagram of a simulated light source with an ultra-high solar spectrum similarity according to a specific embodiment of the present application;
[0032] Figure 8 It is a schematic structural diagram of a lamp of a simulated light source with an ultra-high solar spectrum similarity according to an embodiment of the present application;
[0033] Figure 9 It is a schematic circuit diagram of a circuit of a simulated light source with an ultra-high solar spectrum similarity according to an embodiment of the present application.
[0034] Drawing reference numerals:
[0035] 1. Upper light-emitting diffusion plate; 2. Upper outer frame; 3. Upper light-emitting light source; 4. Heat-dissipating silica gel pad; 5. Heat-dissipating metal part; 6. Lower main light-emitting light source; 7. Foam; 8. Reflective paper; 9. Light guide plate; 10. Anti-glare film; 11. Prismatic plate; 12. Lower outer frame. Detailed implementation manners
[0036] In the following detailed description, reference is made to the accompanying drawings, which form a part of the detailed description and illustrate illustrative specific embodiments in which the present application can be practiced. In this regard, directional terms such as "top", "bottom", "left", "right", "upper", "lower", etc. are used with reference to the orientation of the described figures. Since the components of the embodiments can be positioned in several different orientations, the directional terms are used for the purpose of illustration and the directional terms are in no way limiting. It should be understood that other embodiments can be utilized or logical changes can be made without departing from the scope of the present application. Therefore, the following detailed description should not be taken in a limiting sense, and the scope of the present application is defined by the appended claims.
[0037] An ultra-high solar spectrum similarity simulated light source includes:
[0038] A deep red light source and a white light source, and the deep red light source and the white light source constitute a simulated sunlight containing deep red light; the deep red light source includes: an electroluminescent component, a photoluminescent component, and a bracket;
[0039] The electroluminescent component and the photoluminescent component are arranged on the bracket, and the photoluminescent component is coated on the outside of the electroluminescent component; wherein, the luminescent material of the photoluminescent component includes deep red phosphor;
[0040] The electroluminescent component includes an LED chip, and the LED chip is a near-ultraviolet blue light chip with a light-emitting wavelength range of 380 - 430 nm.
[0041] Specifically, the LED chip includes one or more near-ultraviolet blue light chips with a light-emitting wavelength range of 380 - 430 nm.
[0042] Specifically, the peak wavelength range of the deep red phosphor emission is 600 - 1000 nm, and the full width at half maximum range is 35 - 160 nm.
[0043] Specifically, the deep red phosphor includes at least one of the following: aluminate, gallate, molybdate, tungstate, silicate, nitride, oxynitride, sulfide.
[0044] Specifically, it further includes: a reflector cup; the number of reflector cups ≥ 2, a deep red light source is arranged in the first reflector cup; one or more white light sources are arranged in each of the remaining reflector cups, and the white light source includes full-spectrum white light with a color temperature of 2700K - 6500K.
[0045] Specifically, such as Figure 4 and Figure 5 As shown, the deep red light source in the reflector cup is encapsulated by SMD or COB.
[0046] As Figure 1 shown, in a specific embodiment, the LED chip includes one or more near-ultraviolet blue light chips with a light emission wavelength range of 380 - 420 nm. In this embodiment, the phosphor is Mn4+-doped gallate.
[0047] Exemplarily, when the simulated light source includes 1 reflector cup, the achievable color temperatures include but are not limited to 2700K, 3000K, 3500K, 4000K, 5000K, 5700K, 6500K;
[0048] The different color temperatures have the characteristics shown in the following table:
[0049] Color temperature CRI MC Rf Rg SDCM(ANSI) NIRC NVC 2700K ≥95 ≤0.3 ≥90 ≥100 ≤7 ≥0.8 ≥0.8 3000K ≥95 ≤0.3 ≥95 ≥100 ≤7 ≥0.8 ≥0.8 3500K ≥95 ≤0.3 ≥95 ≥100 ≤7 ≥0.8 ≥0.8 4000K ≥95 ≤0.25 ≥95 ≥100 ≤7 ≥0.8 ≥0.8 5000K ≥95 ≤0.2 ≥95 ≥100 ≤7 ≥0.8 ≥0.8 5700K ≥95 ≤0.2 ≥95 ≥100 ≤7 ≥0.8 ≥0.8 6500K ≥95 ≤0.2 ≥95 ≥100 ≤7 ≥0.8 ≥0.8
[0050] Color temperature CRI MC Rf Rg SDCM(ANSI) NIRC NVC 2700K ≥96 ≤0.25 ≥90 ≥100 ≤7 ≥0.9 ≥0.95 3000K ≥96 ≤0.25 ≥95 ≥100 ≤7 ≥0.9 ≥0.95 3500K ≥96 ≤0.25 ≥95 ≥100 ≤7 ≥0.9 ≥0.95 4000K ≥96 ≤0.2 ≥95 ≥100 ≤7 ≥0.9 ≥0.95 5000K ≥96 ≤0.2 ≥95 ≥100 ≤7 ≥0.9 ≥0.95 5700K ≥96 ≤0.2 ≥95 ≥100 ≤7 ≥0.9 ≥0.95 6500K ≥96 ≤0.2 ≥95 ≥100 ≤7 ≥0.9 ≥0.95
[0051] Color temperature CRI MC Rf Rg SDCM(ANSI) NIRC NVC 2700K ≥98 ≤0.2 ≥90 ≥100 ≤7 ≥0.95 ≥0.95 3000K ≥98 ≤0.2 ≥95 ≥100 ≤7 ≥0.95 ≥0.95 3500K ≥98 ≤0.2 ≥95 ≥100 ≤7 ≥0.95 ≥0.95 4000K ≥98 ≤0.15 ≥95 ≥100 ≤7 ≥0.95 ≥0.95 5000K ≥98 ≤0.15 ≥95 ≥100 ≤7 ≥0.95 ≥0.95 5700K ≥98 ≤0.15 ≥95 ≥100 ≤7 ≥0.95 ≥0.95 6500K ≥98 ≤0.15 ≥95 ≥100 ≤7 ≥0.95 ≥0.95
[0052] Exemplarily, when the simulated light source includes 2 reflector cups, the combinations of each cup include but are not limited to the combinations described in the following table:
[0053]
[0054]
[0055] Exemplarily, when the simulated light source includes 3 reflector cups, the combinations of each cup include but are not limited to the combinations described in the following table:
[0056]
[0057]
[0058] Exemplarily, when the simulated light source includes 4 reflector cups, the combinations of each cup include but are not limited to the combinations described in the following table:
[0059]
[0060] As Figure 6 and Figure 7 shown, in this embodiment, the whole lamp can achieve CRI = 99, R9 = 93.5, MC = 0.11, NVC = 0.97, NIRC = 0.96.
[0061] As Figure 8 shown, in this embodiment, the lamp sequentially includes from top to bottom: an upper light-emitting diffuser plate 1, an upper outer frame 2, an upper light-emitting light source 3, a heat-dissipating silica gel pad 4, a heat-dissipating metal part 5, a lower light-emitting main light source 6, a foam 7, a reflective paper 8, a light guide plate 9, an anti-glare film 10, a prism plate 11, and a lower outer frame 12.
[0062] As Figure 9 shown, in this embodiment, a circuit of an ultra-high solar spectrum similarity simulated light source includes: a rectifying circuit, a constant-current dimming control circuit, a DC-DC control circuit, an auxiliary power supply circuit, a radio frequency communication module, and an LED light source; the rectifying circuit is respectively connected to the constant-current dimming control circuit and the auxiliary power supply circuit; the auxiliary power supply circuit is configured to supply power to the radio frequency communication module; the radio frequency communication module transmits control signals to the constant-current dimming control circuit and the DC-DC control circuit respectively; the constant-current dimming control circuit is connected to the DC-DC control circuit; the DC-DC control circuit is connected to the LED light source.
[0063] Obviously, those skilled in the art can make various modifications and changes to the embodiments of the present application without departing from the spirit and scope of the present application. In this way, if these modifications and changes are within the scope of the claims of the present application and their equivalent forms, the present application also aims to cover these modifications and changes. The word "comprising" does not exclude the presence of other elements or steps not listed in the claims. The simple fact that certain measures are recited in mutually different dependent claims does not indicate that a combination of these measures cannot be used to obtain benefits. Any reference signs in the claims should not be construed as limiting the scope.
Claims
1. A super high solar spectrum similarity simulation light source, characterized in that: include: A deep red light source and a white light source, wherein the deep red light source and the white light source constitute fitting sunlight containing deep red light; The deep red light source comprises: an electroluminescent component, a photoluminescent component and a bracket; An electroluminescent component and a photoluminescent component are arranged on the bracket, and the photoluminescent component is coated on the outside of the electroluminescent component; wherein the luminescent material of the photoluminescent component includes deep red fluorescent powder; The electroluminescent component comprises an LED chip, and the LED chip is a near-ultraviolet blue light chip with a light emission wavelength range of 380-430nm.
2. The ultra-high solar spectrum similarity simulation light source according to claim 1, characterized in that: The LED chip includes one or more near-ultraviolet blue light chips with a light emission wavelength range of 380-430nm.
3. The ultra-high solar spectrum similarity simulation light source according to claim 2, characterized in that: The LED chip includes one or more near-ultraviolet blue light chips with a light emission wavelength range of 380-420nm.
4. The ultra-high solar spectrum similarity simulation light source according to claim 1, characterized in that: The peak wavelength of the deep red phosphor is in the range of 600-1000nm, and the half-wave width is in the range of 35-160nm.
5. The ultra-high solar spectrum similarity simulation light source according to claim 1, characterized in that: The deep red phosphor includes at least one of the following: aluminate, gallate, molybdate, tungstate, silicate, nitride, nitrogen oxide, and sulfide.
6. The ultra-high solar spectrum similarity simulation light source according to claim 1, characterized in that: Also includes: A reflective cup; the deep red light source and the white light source are arranged in the reflective cup.
7. The ultra-high solar spectrum similarity simulation light source according to claim 1, characterized in that: Also includes: Reflective cup; the number of the reflective cups is ≥ 2, the first reflective cup is provided with the deep red light source; each of the remaining reflective cups is provided with one or more white light sources, and the white light source includes full-spectrum white light with a color temperature of 2700K to 6500K.
8. The ultra-high solar spectrum similarity simulation light source according to claim 6 or 7, characterized in that: The deep red light source in the reflective cup is packaged in SMD or COB.
9. A lamp with ultra-high solar spectrum similarity simulating light source, characterized in that: include: An upper light-emitting diffusion plate, an outer frame, a heat sink, and a light-emitting light source, wherein the light-emitting light source is an ultra-high solar spectrum similarity simulation light source as described in any one of claims 1-8.
10. A circuit for simulating a light source with ultra-high solar spectrum similarity, characterized in that: include: A rectifier circuit, a constant current dimming control circuit, a DC-DC control circuit, an auxiliary power supply circuit, a radio frequency communication module and an LED light source; the rectifier circuit is respectively connected to the constant current dimming control circuit and the auxiliary power supply circuit; The auxiliary power supply circuit is configured to supply power to the radio frequency communication module; the radio frequency communication module transmits control signals to the constant current dimming control circuit and the DC-DC control circuit respectively; the constant current dimming control circuit is connected to the DC-DC control circuit; The DC-DC control circuit is connected to the LED light source.