CN214625083U - Light source module and lighting device comprising same - Google Patents
Light source module and lighting device comprising same Download PDFInfo
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- CN214625083U CN214625083U CN202022764281.1U CN202022764281U CN214625083U CN 214625083 U CN214625083 U CN 214625083U CN 202022764281 U CN202022764281 U CN 202022764281U CN 214625083 U CN214625083 U CN 214625083U
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Abstract
The utility model provides a light source module and include lighting device of this light source module, the light source module includes blue light generation portion, cyan light generation portion, yellow-green light generation portion, ruddiness generation portion includes first additional luminous body and second additional luminous body, the light that first additional luminous body sent forms the main emission peak in the red light district, the light that the second additional luminous body sent forms the secondary emission peak in the red light district, the spectral intensity of secondary emission peak is 30.0~80.0% of the spectral intensity of main emission peak, the emission light of light source module is the white light of colour temperature at 3000K ~6000K, on CIE1931 colour space, with black body locus BBL's distance duv ═ 0. ~ 0.007. The utility model provides a light source module has optimized spectral distribution specially to the special demand of prevention myopia, has added the narrowband red light phosphor powder, changes red light zone specific area's energy distribution. Work, life, study under the luminous environment that this application light source module and lamps and lanterns provided can alleviate visual fatigue, and then prevent near-sighted emergence and delay near-sighted process.
Description
Technical Field
The utility model relates to a light source module reaches lighting device including this light source module.
Background
With the continuous deepening of the information society, the incidence rate of myopia also shows a rapid development trend. Ten years ago, the number of myopia patients in Japan, Korea, Singapore and other countries is much higher than that in China, however, the joint investigation of the Ministry of health and education in 2018 shows that the number of myopia patients in China is the top of the world. Myopia is caused by the fact that the axis of the eye changes, so that external parallel light rays cannot be focused on the retina but fall in front of the retina after entering the eyeball, and a clear image cannot be obtained. At present, myopia control is mainly performed by medical means such as wearing frame glasses and orthokeratology, and great inconvenience and trouble are brought to daily life of children and teenagers. The means for preventing myopia is also single, namely outdoor activities. It has been proved effective in preventing myopia when it is used outdoors for about 2 hours per day. However, the feasibility of performing long-term outdoor activities is not high due to the heavy burden of the teenager's lessons.
Primate studies found that long wavelength red illumination might prevent myopia or retard myopia by creating a signal related to myopic defocus to prevent axial elongation resulting from form deprivation or hyperopic defocus. In a study of long wavelength red light, the red light illumination of the wavelength can increase the dopamine content in retina and inhibit the increase of the axis of eyes caused by myopia. Meanwhile, the red light promotes the blood circulation of the choroid and improves the blood supply of the retina and the sclera. In a study of 264 myopic children, repeated low intensity red light treatments for 3 months were found to be free of retinal damage and to stop the progression of myopia in school-age children.
At present, no professional spectrum design is available for the white light LED on the market aiming at relieving asthenopia, preventing myopia and delaying the development of myopia. These studies suggest whether it is possible to obtain the effect of preventing myopia by providing a special illumination light source in combination with the above results.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the above problem, look for one kind and can alleviate visual fatigue and prevent near-sighted and delay the light source module of near-sighted development and reach the lighting device including this light source module.
The utility model discloses a realize above-mentioned function, the technical scheme who adopts provides a light source module, a serial communication port, include:
a blue light generating part which emits a first color light with a peak wavelength of 430-470 nm in a blue light region;
a cyan light generation part which emits a second color light with a peak wavelength of 470-510 nm in a cyan region;
a yellow-green light generating part which emits third color light with the peak wavelength of 510-600 nm in a yellow-green light region;
a red light generating part which emits fourth color light with a peak wavelength of 600-780 nm, the red light generating part comprises a first additional luminophor and a second additional luminophor, the first additional luminophor is arranged to receive part of the light emitted by the blue light generating part and convert the light into light with a peak wavelength of 630-690 nm to form a main emission peak in the red light region, the second additional luminophor is arranged to receive part of the light emitted by the blue light generating part and convert the light into light with a peak wavelength of 610-640 nm to form a secondary emission peak in the red light region, the spectral intensity of the secondary emission peak is 30.0-80.0% of the spectral intensity of the main emission peak,
the first color, the second color light, the third color light and the fourth color light are mixed to form the emitting light of the light source module, the emitting light is white light with a color temperature of 3000K-6000K, and the emitting light is in a CIE1931 color space and is at a distance duv = -0.007 with a black body locus BBL.
Preferably, the half-width of the main emission peak is not more than 30.0 nm.
Preferably, the blue light generating part emits a first color light with a peak wavelength in a blue region of 440-460 nm; the cyan light generation part emits second color light with the peak wavelength of 480-500 nm in the cyan region.
Preferably, the ratio of the spectral radiation energy of the light emitted by the red light generating part in a red light region of 600-780 nm to the total radiation energy of the light emitted by the light source module in a visible light region of 380-780 nm is not less than 25.0%.
Preferably, the ratio of the spectral radiant energy of the light emitted by the red light generating part within the range of 630-690 nm to the total radiant energy of the light emitted by the light source module within the range of 380-780 nm is 15.0-50.0%.
Preferably, the ratio of spectral radiant energy of light emitted from the blue light generating part in a blue light region of 430 to 470nm to total radiant energy of light emitted from the light source module in a visible light region of 380 to 780nm is 15.0 to 50.0%.
Preferably, the ratio of spectral radiant energy of the light emitted by the cyan light generating part in a cyan region 470-510 nm to the total radiant energy of the light emitted by the light source module in a visible region, namely, in a range of 380 nm-780 nm, is 10.0-30.0%.
Preferably, the ratio of spectral radiant energy of the light emitted by the cyan light generating part in a cyan region 470-510 nm to the total radiant energy of the light emitted by the light source module in a visible region, namely, in a range of 380 nm-780 nm, is 10.0-20.0%.
Preferably, the light emitted from the blue light generating part forms a first peak in a blue light region of 430-470 nm, and the spectral intensity of the first peak is 20.0-100.0% of the spectral intensity of the main emission peak.
Preferably, the spectral intensity of the first peak is 30.0-80.0% of the spectral intensity of the main emission peak.
Preferably, the light emitted from the cyan light generating part forms a second peak in the cyan light region 470-510 nm, and the spectral intensity of the second peak is 25.0-100.0% of the spectral intensity of the main emission peak.
Preferably, the spectral intensity of the second peak is 35.0-80.0% of the spectral intensity of the main emission peak.
Preferably, the distance duv = -0.005 between the emitted light of the light source module and the black body locus BBL in the CIE1931 color space.
Preferably, the blue light generating part is a blue LED with the peak wavelength of emitted light of 430-470 nm; the first additional luminous body is red fluorescent powder with the peak wavelength of 630-690 nm, and the second additional luminous body is red fluorescent powder with the peak wavelength of 610-640 nm.
Preferably, the first additional luminophor is narrow-band phosphor with half width less than or equal to 30.0 nm.
Preferably, the cyan light generating part is a cyan light LED or cyan fluorescent powder with a peak wavelength of 470-510 nm; the yellow-green light generating part is yellow fluorescent powder and/or green fluorescent powder with the peak wavelength of 510-600 nm.
Preferably, the yellow-green light generating part comprises at least one green phosphor with the peak wavelength of 510-545 nm and at least one yellow phosphor with the peak wavelength of 510-545 nm.
The utility model also provides a lighting device, including above-mentioned light source module.
The utility model provides a light source module has optimized spectral distribution specially to the special demand of prevention myopia, has added the narrowband red light phosphor powder, changes red light zone specific area's energy distribution. Work, life, study under the light environment that this application light source module reaches lighting device including this light source module provided can alleviate visual fatigue, and then prevent near-sighted emergence and delay near-sighted process.
Drawings
Fig. 1 is a schematic structural diagram of a light source module according to a preferred embodiment of the present invention;
FIG. 2 is a CIE1931 color coordinate diagram according to the preferred embodiments 1-7 of the present invention;
FIG. 3 is a graph of the emission spectrum of the preferred embodiment 1 of the present invention;
FIG. 4 is a graph of the emission spectrum of the preferred embodiment 2 of the present invention;
FIG. 5 is a graph of the emission spectrum of the preferred embodiment 3 of the present invention;
FIG. 6 is a graph of the emission spectrum of the preferred embodiment 4 of the present invention;
FIG. 7 is a graph of the emission spectrum of the preferred embodiment 5 of the present invention;
FIG. 8 is a graph of the emission spectrum of the preferred embodiment 6 of the present invention;
FIG. 9 is a graph of the emission spectrum of the preferred embodiment 7 of the present invention;
fig. 10 is a schematic structural view of a lighting device according to a preferred embodiment of the present invention.
Detailed Description
The light source module and the lighting device provided by the present application are further described in detail with reference to the accompanying drawings and some preferred embodiments consistent with the present application.
The common white light LED in the market generates white light by mixing RGB light, and a blue light chip excites green and red fluorescent powder, and then the red, green and blue are mixed to form the white light. Whereas primate studies found that long wavelength red illumination might prevent myopia or retard myopia by creating a signal related to myopic defocus to prevent axial elongation resulting from form deprivation or hyperopic defocus. In a study of long wavelength red light, the red light illumination of the wavelength can increase the dopamine content in retina and inhibit the increase of the axis of eyes caused by myopia. Meanwhile, the red light promotes the blood circulation of the choroid and improves the blood supply of the retina and the sclera. Therefore, the energy of the light source module L1 in the waveband of 630-690 nm is increased, namely, besides the conventional red fluorescent powder, the red fluorescent powder with the peak wavelength of 630-690 nm is additionally added. In addition, researches show that teenagers are most sensitive to energy in the blue light wave band of 415-465 nm, and the condition that the teenagers are exposed to high blue light for a long time (particularly at night) and are possibly damaged by retinal epithelial cells due to the fact that the teenagers are exposed to the high blue light for a long time and the vision health is damaged is avoided as much as possible. Therefore, this application light source module L1 still adds blue light generation portion to blue light district energy replaces partial blue light energy, reduces the blue light in the emergent light and accounts for than, realizes the effect of better protection eyesight.
One embodiment of the light source module L1 of the present application is a mixed white LED package chip, as shown in fig. 1, which can be a general chip package structure or COB package structure LED chip, and the light source module L1 at least includes a blue light generator 1 and a package 2 covering the blue light generator 1.
The blue light generating part 1 is a blue light LED chip, and is directly excited by a semiconductor material to emit light, a peak wavelength of the light emission is 430 to 470nm, preferably 440 to 460nm, and a light color is blue, where the light emitted by the blue light generating part 1 is referred to as a first color light. The LED Chip (LED Chip) comprises a positive mounting or a reverse mounting, and a single LED Chip or a plurality of LED chips are connected together in series, parallel or series-parallel.
The blue light generating part 1 is covered by the packaging part 2, the packaging part 2 is also covered by a blue light generating part 201, and second color light with the peak wavelength being 470-510 nm, preferably 480-500 nm, is emitted; a yellow-green light generating part 202 which emits a third color light with a peak wavelength of 510-600 nm in a yellow-green light region; the red light generation unit 203 emits a fourth color light having a peak wavelength of 600 to 780nm in a red light region. In the present embodiment, the cyan light generating portion 201, the yellow-green light generating portion 202, and the red light generating portion 203 are all phosphors, which receive part of the light emitted from the blue light generating portion 1 and convert it into light of a corresponding color. In other preferred embodiments, the cyan light generator 201 can also be a cyan LED emitting cyan light with a peak wavelength in the cyan region 470-510 nm.
In the present embodiment, the package portion 2 includes a base material 204, which may be transparent silicone or transparent resin, wherein the transparent resin may be one of epoxy resin and urea resin. The substrate material 204 is doped with cyan fluorescent powder with peak wavelength of 470-510 nm as a cyan light generating part 201, yellow and/or green fluorescent powder with peak wavelength of 510-600 nm as a yellow-green light generating part 202, and red fluorescent powder with peak wavelength of 600-780 nm as a red light generating part 203, and the mixture is uniformly mixed and then covered on the blue light generating part 1.
Because the color is a visual feeling of a human body, the spectrum boundary of each color is not accurately defined, for the convenience of expression, some color intervals are automatically divided in the application, namely a blue light area is 430-470 nm, a cyan light area is 470-510 nm, a yellow-green light area is 510-600 nm, and a red light area is 600-780 nm. The cyan fluorescent powder, the yellow fluorescent powder, the green fluorescent powder and the red fluorescent powder can be one fluorescent powder or a mixture of several fluorescent powders, and the fluorescent powder can be regarded as the fluorescent powder with the color only if the peak wavelength of the emitted light is within the light color range expressed by people. Specifically, in the present embodiment, the cyan light generating portion 201 is a single phosphor material, and the yellow-green light generating portions 202 each include two kinds of phosphors, which are formed by mixing at least one kind of green phosphor having a peak wavelength of 510 to 545nm and at least one kind of yellow phosphor having a peak wavelength of 510 to 545 nm. Two kinds of fluorescent powder with different peak wavelengths are added, mainly to provide better color rendering property.
The first color light, the second color light, the third color light and the fourth color light emitted from the blue light generating part 1, the cyan light generating part 201, the yellow-green light generating part 202 and the red light generating part 203 are mixed to form the emitting light of the light source module L1. The light source module L1 is mainly used as an illumination light source, so the synthesized emitted light is white light with a color temperature of 3000K-6000K, and the distance duv = -0.007, preferably duv = -0.005, from the black body locus BBL in CIE1931 color space.
In order to achieve the application purpose, the solution provided by the application focuses on improving the energy ratio of the emergent light of the light source module L1 in a red light region, especially in a 630-690 nm region. Therefore, in the present embodiment, two kinds of phosphors are used for the red light generating portion 203, the red light generating portion 203 includes a first additional light emitter and a second additional light emitter, the first additional light emitter is arranged to receive a part of the light emitted from the blue light generating portion 1 and convert the light into light having a peak wavelength of 630 to 690nm to form a main emission peak in a red light region, and the second additional light emitter is arranged to receive a part of the light emitted from the blue light generating portion 1 and convert the light into light having a peak wavelength of 610 to 640nm to form a sub-emission peak in the red light region. The first additional luminous body and the second additional luminous body are red fluorescent powder, and the difference is that the light-emitting peak wavelengths of the first additional luminous body and the second additional luminous body are different. The second additional luminophor is red fluorescent powder with peak wave of 610-640 nm, and the second additional luminophor has the same function as the red fluorescent powder in the conventional white light LED and mainly balances light color. The first additional luminous body is red fluorescent powder with the peak wavelength of 630-690 nm, energy in a 630-690 nm section is added, in order to ensure that the added red light energy can effectively achieve the purpose of the application, namely, the energy is mainly concentrated in a set wavelength section, the first additional luminous body is preferably narrow-band red fluorescent powder, namely, the half width of the fluorescent powder is not more than 30.0nm, and the half width of a main emission peak in the emission spectrum of the light source module L1 is not more than 30.0nm because the main emission peak is formed by the first additional luminous body. Meanwhile, in order to ensure the energy in the 630-690 nm section, the spectral intensity of the secondary emission peak is required to be 30.0-80.0% of the spectral intensity of the main emission peak.
After the first additional luminous body is added to increase the energy of the red light region, the ratio of the spectral radiation energy of the light emitted by the red light generating part 203 in the red light region of 600-780 nm to the total radiation energy of the light emitted by the light source module L1 in the visible light region of 380-780 nm is not less than 25.0%, and particularly the ratio of the spectral radiation energy in the 630-690 nm to the total radiation energy of the light emitted by the light source module L1 in the visible light region of 380-780 nm is 15.0-50.0%.
In addition, research shows that teenagers are most sensitive to energy in the blue light band of 415-465 nm and should be prevented from being exposed to high blue light for a long time (especially at night), so that the light source module L1 provided in the embodiment limits the blue light energy emitted by the teenagers. The light emitted from the blue light generating part 1 forms a first peak in the blue light region of 430 to 470nm, and the spectral intensity of the first peak is 20.0 to 100.0%, preferably 30.0 to 80.0%, of the spectral intensity of the main emission peak. And the ratio of the spectral radiant energy of the first peak in the blue light region of 430-470 nm to the total radiant energy of the light source module L1 in the visible light region, i.e. 380-780 nm, is 15.0-50.0%, preferably 10.0-30.0%.
The blue light can be partially compensated by the blue light, so that the blue light generating part 201 is disposed in the light source module L1, and the light emitted from the blue light generating part 201 forms a second peak in the blue light region 470-510 nm, and the spectral intensity of the second peak is 25.0-100.0%, preferably 35.0-80.0%, of the spectral intensity of the main emission peak. And the ratio of the spectral radiant energy of the second peak in the cyan region 470-510 nm to the total radiant energy of the light source module in the visible region of the emitted light, namely, in the range of 380 nm-780 nm, is 10.0-30.0%, preferably 10.0-20.0%.
In the above description, in a preferred embodiment of the present application, the blue light generating unit 1, the cyan light generating unit 201, the yellow-green light generating unit 202, and the red light generating unit 203 can be selected from a variety of options, and table 1 below gives some specific LED or phosphor types and their light emitting parameters for each light generating unit, table 2 gives 7 specific examples, and specific options for the blue light generating unit 1, the cyan light generating unit 201, the yellow-green light generating unit 202, and the red light generating unit 203 in each example.
TABLE 1
In table 1, x and y represent coordinate values of light colors of emitted light of the red LED on x and y axes on the CIE1931 color coordinate system, Peak represents a Peak wavelength of the red LED, and Hw represents a half width of an emission Peak. The above values are actual values of the phosphors used in the examples, and are not intended to limit the present invention, because the peak wavelength and half width of the phosphors may deviate slightly from the above values due to the purity and particle size of the phosphors in actual production, and the deviation value is generally controlled to be within ± 5nm, and it should be understood that other schemes within this range are equivalent to the above phosphors.
TABLE 2
According to the model selection of each light generating part in table 2, 7 preferred embodiments of the light source module L1 of the present application are formed by combining the light generating parts, the characteristic parameters of the emitted light of each embodiment are shown in table 3, and the positions on the CIE1931 color coordinate system are shown in fig. 2. Wherein x and y represent coordinate values of light colors of light emitted by the light source module of the embodiment on x and y axes of a CIE1931 color coordinate system, CCT is a color temperature, duv represents a distance and a direction of color deviation from a Planckian locus in the color coordinate system, and CRI is a color rendering index.
TABLE 3
In table 3, although the light source module L1 of the present application increases the energy of the red light region and decreases the energy of the blue light region, the light color of the cyan light generating portion 201 still remains white, and in the CIE1931 color space, the distance duv = -0.007 from the black body locus BBL, and most duv = -0.005, as shown in fig. 2. The yellow-green light generating part 202 uses a mixture of yellow phosphor and green phosphor, so that the light source module L1 has good color rendering property, and the CRI is above 85.
In order to achieve the objective of alleviating asthenopia and preventing myopia, which is mainly achieved by energy ratio of different wave bands, table 4 lists the spectral characteristics of the light source module L1 in examples 1-7, and the emission spectra of the light source modules in examples 1-7 are shown in fig. 3-9. The energy ratio of the blue light region is the ratio of the spectral radiation energy in the region of 430-470 nm in the total radiation energy of the light source module L1 in the visible light region; the energy proportion of the cyan region is the proportion of the spectral radiation energy in the 470-510 nm region in the total radiation energy of the light source module L1 in the visible light region, and the energy proportion of the red region is the proportion of the spectral radiation energy in the 600-780 nm region in the total radiation energy of the light source module L1 in the visible light region; the energy ratio of the spectral radiation energy in the region of 630-690 nm in the red region 2 is the ratio of the total radiation energy of the light source module L1 in the visible region. In addition, for the spectral intensity, we use a relative spectrum, i.e. the highest intensity in the whole spectrum is 100%, and other positions are expressed by relative ratio with the highest peak, so the peak wavelength intensities of the blue light, the cyan light and the secondary emission peak in the following table all refer to the ratio with the intensity of the primary emission peak.
TABLE 4
As can be seen from table 4, the spectra of the emitted lights of examples 1 to 7 all meet the energy distribution requirement proposed in the implementation, and it is found in the subsequent experiments that the light source module L1 of examples 1 to 7 can alleviate fatigue to some extent while achieving the lighting effect, and is expected to achieve the purpose of preventing myopia.
Fig. 10 shows a lighting device according to a preferred embodiment of the present application, which is a table lamp in this implementation, and includes a lamp holder 61, a lamp post 62, and a base 63, where the light source module L1 is disposed at the position of the lamp holder. In other preferred embodiments, the light source module L1 can also be applied to various lamps such as ceiling lamps, down lamps, and spot lamps. This is not a limitation of the present application.
The foregoing description of the preferred embodiments of the invention has been presented for purposes of illustration and description and is not intended to be exhaustive or to limit the invention to the precise forms disclosed, and obviously, many modifications and variations may be made which will be apparent to those skilled in the art and are intended to be included within the scope of the invention as defined by the following claims.
Claims (18)
1. A light source module, comprising:
a blue light generating part which emits a first color light with a peak wavelength of 430-470 nm in a blue light region;
a cyan light generation part which emits a second color light with a peak wavelength of 470-510 nm in a cyan region;
a yellow-green light generating part which emits third color light with the peak wavelength of 510-600 nm in a yellow-green light region;
a red light generating part which emits fourth color light with a peak wavelength of 600-780 nm, the red light generating part comprises a first additional luminophor and a second additional luminophor, the first additional luminophor is arranged to receive part of the light emitted by the blue light generating part and convert the light into light with a peak wavelength of 630-690 nm to form a main emission peak in the red light region, the second additional luminophor is arranged to receive part of the light emitted by the blue light generating part and convert the light into light with a peak wavelength of 610-640 nm to form a secondary emission peak in the red light region, the spectral intensity of the secondary emission peak is 30.0-80.0% of the spectral intensity of the main emission peak,
the first color, the second color light, the third color light and the fourth color light are mixed to form the emitting light of the light source module, the emitting light is white light with a color temperature of 3000K-6000K, and the emitting light is in a CIE1931 color space and is at a distance duv = -0.007 with a black body locus BBL.
2. The light source module of claim 1, wherein the half-width of the main emission peak is not greater than 30.0 nm.
3. The light source module of claim 2,
the blue light generating part emits first color light with the peak wavelength being 440-460 nm in a blue light region;
the cyan light generation part emits second color light with the peak wavelength of 480-500 nm in the cyan region.
4. The light source module according to claim 2, wherein a ratio of spectral radiant energy of the light emitted from the red light generating part in a red light region of 600 to 780nm to total radiant energy of the light emitted from the light source module in a visible light region of 380 to 780nm is not less than 25.0%.
5. The light source module according to claim 4, wherein a ratio of spectral radiant energy of the light emitted from the red light generating part in a range of 630 to 690nm to a total radiant energy of the light emitted from the light source module in a visible region, that is, in a range of 380 to 780nm, is 15.0 to 50.0%.
6. The light source module according to claim 2, wherein a ratio of spectral radiant energy of the light emitted from the blue light generating part in a blue region of 430 to 470nm to a total radiant energy of the light emitted from the light source module in a visible region of 380 to 780nm is 15.0 to 50.0%.
7. The light source module according to claim 1, wherein a ratio of spectral radiant energy of the light emitted from the cyan light generating portion in a cyan region 470 to 510nm to a total radiant energy of the light emitted from the light source module in a visible region, that is, in a range of 380nm to 780nm, is 10.0 to 30.0%.
8. The light source module according to claim 7, wherein a ratio of spectral radiant energy of the light emitted from the cyan light generating portion in a cyan region 470 to 510nm to a total radiant energy of the light emitted from the light source module in a visible region, that is, in a range of 380nm to 780nm, is 10.0 to 20.0%.
9. The light source module of claim 2, wherein the blue light generating portion emits light having a first peak within a range of 430-470 nm of a blue light region, and the spectral intensity of the first peak is 20.0-100.0% of the spectral intensity of the main emission peak.
10. The light source module according to claim 9, wherein the spectral intensity of the first peak is 30.0-80.0% of the spectral intensity of the main emission peak.
11. The light source module according to claim 2, wherein the cyan light generating portion emits light having a second peak within a cyan region of 470-510 nm, and the spectral intensity of the second peak is 25.0-100.0% of the spectral intensity of the main emission peak.
12. The light source module according to claim 11, wherein the spectral intensity of the second peak is 35.0-80.0% of the spectral intensity of the main emission peak.
13. The light source module as claimed in claim 2, wherein the light source module emits light at a distance duv = -0.005 from the black body locus BBL in CIE1931 color space.
14. The light source module as claimed in any one of claims 1 to 13, wherein the blue light generating part is a blue LED emitting light with a peak wavelength of 430 to 470 nm; the first additional luminous body is red fluorescent powder with the peak wavelength of 630-690 nm, and the second additional luminous body is red fluorescent powder with the peak wavelength of 610-640 nm.
15. The light source module of claim 14, wherein the first additional light emitter is a narrow-band phosphor having a half-width of 30.0nm or less.
16. The light source module of claim 14, wherein the cyan light generating part is a cyan light LED or a cyan phosphor having a peak wavelength of 470-510 nm; the yellow-green light generating part is yellow fluorescent powder and/or green fluorescent powder with the peak wavelength of 510-600 nm.
17. The light source module of claim 16, wherein the yellow-green light generator comprises at least one green phosphor having a peak wavelength of 510-545 nm and at least one yellow phosphor having a peak wavelength of 510-545 nm.
18. An illumination device, comprising: the light source module according to any one of claims 1 to 17.
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| CN112420902A (en) * | 2020-11-26 | 2021-02-26 | 欧普照明股份有限公司 | Light source module and lighting device comprising same |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112420902A (en) * | 2020-11-26 | 2021-02-26 | 欧普照明股份有限公司 | Light source module and lighting device comprising same |
| WO2022111312A1 (en) * | 2020-11-26 | 2022-06-02 | 欧普照明股份有限公司 | Light source module and illumination apparatus comprising said light source module |
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