CN204717399U - Lighting device - Google Patents
Lighting device Download PDFInfo
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- CN204717399U CN204717399U CN201520157608.5U CN201520157608U CN204717399U CN 204717399 U CN204717399 U CN 204717399U CN 201520157608 U CN201520157608 U CN 201520157608U CN 204717399 U CN204717399 U CN 204717399U
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Abstract
The utility model provides a kind of lighting device, and lighting device (10) comprises white light source (18W) and in the region of 490nm ~ 520nm, has the blue-green light source (18C) of peak wavelength; The luminous flux of blue-green light source (18C) is less than 30% relative to the ratio of the luminous flux of white light source (18W).Even if the utility model, when utilizing television camera to carry out taking and playing, also can improve the color reprodubility of lighting object thing.
Description
Technical field
Embodiment of the present utility model relates to a kind of lighting device and the lighting space method for designing that improve color reprodubility.
Background technology
In the past, for the lighting devices such as the Projecting Lamp such as used in arena, in order to illuminate the irradiation object thing being positioned at a distant place with sufficient brightness, high output is widely used for its light source and is relatively easy to high-intensity discharge (High Intensity Discharge, HID) lamp (high-intensity discharge lamp).On the other hand, recently, replace HID lamp just gradually and use and can expect that the high efficiency light-emitting component such as long-life and energy-conservation light emitting diode (Light Emitting Diode, LED) is used as light source.
But, generally speaking, the color reprodubility of high efficiency light-emitting component is poor, the color of lighting object thing not only in arena carrying out throwing light on to use the lighting device of high efficiency light-emitting element seems not nature, and when utilizing television camera (television camera) to take lighting object thing and playing, the color reprodubility of the image that reception is play and shown out is on TV sometimes also poor.
Prior art document
Patent document
Patent document 1: Japanese Patent Laid-Open 2013-114916 publication
Utility model content
[utility model problem to be solved]
Problem to be solved in the utility model is to provide a kind of lighting device and lighting space method for designing, even if described lighting device is when utilizing television camera to carry out taking and playing, also can improve the color reprodubility of lighting object thing.
[technological means of dealing with problems]
The lighting device of embodiment comprises white light source and in the region of 490nm ~ 520nm, has the blue-green light source of peak value (peak) wavelength.The luminous flux of blue-green light source is less than 30% relative to the ratio of the luminous flux of white light source.
The lighting device of embodiment comprises: white light source, and correlated colour temperature is 3000K ~ 6500K; And the 2nd light source, be emitted in light xy chromatic diagram meeting 0.08≤x≤0.21,0.27≤y≤0.72, and the luminous flux of described 2nd light source is less than 30% relative to the ratio of the luminous flux of described white light source.
In addition, described lighting device comprises: red light source, in the region of 620nm ~ 660nm, have peak wavelength, and the total luminous flux of described blue-green light source and described red light source is more than 8% of the overall luminous flux of lighting device.
The lighting device of embodiment comprises: white light source, and correlated colour temperature is 3000K ~ 6500K; 2nd light source, is emitted in light xy chromatic diagram meeting 0.08≤x≤0.21,0.27≤y≤0.72; And the 3rd light source, be emitted in light xy chromatic diagram meeting 0.48≤x≤0.72,0.28≤y≤0.45, and the luminous flux of described 2nd light source is less than 24% relative to the ratio of the luminous flux of described white light source and the luminous flux of described 3rd light source is less than 13% relative to the ratio of the luminous flux of described white light source.
The lighting device of embodiment comprises: blue LED, in the region of 400nm ~ 480nm, have peak wavelength; And luminescent coating, comprise yellow fluorophor and green-emitting phosphor, and cover described blue LED, described green-emitting phosphor has peak wavelength in the region of 480nm ~ 520nm and half breadth is below 50nm.
In addition, described luminescent coating is included in the red-emitting phosphors in the region of 600nm ~ 680nm with peak wavelength.
(effect of utility model)
According to the utility model, even if when utilizing television camera to carry out taking and playing, the color reprodubility improving lighting object thing also can be expected.
Detailed description of the invention
Below, referring to figs. 1 through Fig. 9, the 1st embodiment is described.
Fig. 1 represents lighting device 10.Lighting device 10 is such as the Projecting Lamp used in arena.Lighting device 10 possess body 11, power subsystem 12, for arranging the setting table 13 of described body 11 and power subsystem 12.
The housing 16 that body 11 has front surface opening and the diffuser (cover) 17 that the front surface opening of housing 16 is closed.In the inside of body 11, be configured with multiple light source 18, and correspond to each light source 18 and be configured with reflector 19 respectively, this reflector 19 carries out optically focused to the light from light source 18 and controls luminous intensity distribution.
In present embodiment, when observing from the front surface of body 11, be configured with 6 light sources 18 at periphery, and be configured with 1 light source 18 at central portion.Further, the light source 18 of periphery is set to white light source 18W.The light source 18 of central authorities is set to blue-green light source (blue or green (cyan) color light source) 18C as the 2nd light source, or is set to blue-green light source 18C and both the red light source 18R as the 3rd light source.
First, the light source 18 of the central authorities of illumination apparatus 10 is that the situation of blue-green light source (cyan light source) 18C is described.
White light source 18W sends the white light of correlated colour temperature 3000K ~ 6500K.White light source 18W is White LED, this White LED have as light-emitting component blue LED die and cover the yellow fluorophor of this blue LED die.White light source 18W sends point photodistributed white light blue light and sodium yellow being carried out mixing, and described blue light is sent by blue led, and described sodium yellow is sent by this blue light excites by yellow fluorophor.Further, point Light distribation A relatively of the white light that white light source 18W sends is represented in Fig. 2.
Blue-green light source 18C sends light as described below, and the peak wavelength of this light is 490nm ~ 520nm, and half breadth is below 60nm, and meets 0.08≤x≤0.21,0.27≤y≤0.72 on the xy chromatic diagram shown in Fig. 3.Blue-green light source 18C is the blue-green LED with described colourity and half breadth.The luminous flux of blue-green light source 18C is less than 30% relative to the ratio of the luminous flux of white light source 18W.Fig. 4 represents point Light distribation B relatively, this relatively point Light distribation B be in point Light distribation A relatively of Fig. 2, with (white light) 90:(blue green light) ratio of the light flux ratio of 10 and blue green light that the blue-green light source 18C that is mixed with dominant wavelength 500nm and half breadth 40nm sends.
And power subsystem 12 supplies electric power to each light source 18, to make each light source 18 luminous.
Further, multiple lighting device 10 is arranged on to erect and is arranged on the top of arenic pillar or arenic roof etc., to arena internal radiation light.
The light irradiated from lighting device 10 comprises from the white light of white light source 18W and the blue green light from blue-green light source 18C, becomes point Light distribation B relatively shown in Fig. 4.
Table 1 represents point Light distribation B relatively of point Light distribation A and white light source 18W+ blue-green light source 18C relatively for white light source 18W, obtains the result of average color rendering index Ra and television lighting colour developing evaluation number (Television Lighting Consistency Index) Qa respectively.
Table 1
| Point Light distribation relatively | Ra | Qa |
| A | 82 | 66 |
| B | 85 | 90 |
In the relative point of Light distribation B that white light and blue green light are mixed, compared with point Light distribation A relatively of only adularescent light, average color rendering index Ra and television lighting colour developing evaluation number Qa all uprises, and especially television lighting colour developing evaluation number Qa significantly improves.
Uprised by average color rendering index Ra, thus the color reprodubility of the object of observation of arena when observing from the people being positioned at arena can be improved.
Uprised by television lighting colour developing evaluation number Qa, thus when utilizing television camera also to play in arena to take, the color reprodubility of captured image can be improved, therefore, it is possible to the color reprodubility of the image improving reception broadcasting and show out on TV.
So, lighting device 10 is by being mixed white light with blue green light and being irradiated, thus average color rendering index Ra can not only be improved, and television lighting colour developing evaluation number Qa can be improved, the color reprodubility of image when can improve the color reprodubility of the actual object of observation and televise.
And then, by making the luminous flux of blue-green light source 18C be less than 30% relative to the ratio of the luminous flux of white light source 18W, thus sufficient color reprodubility can be guaranteed.If the luminous flux of blue-green light source 18C is greater than 30% relative to the ratio of the luminous flux of white light source 18W, then the ratio regular meeting of blue green light becomes too much, thus produces the impact of color reprodubility decline.
Fig. 5 represents the relation of the luminous flux of blue-green light source 18C relative to the aberration duv on the ratio of the luminous flux of white light source 18W, average color rendering index Ra and television lighting colour developing evaluation number Qa and CIE 1960 UCS chromatic diagram.By mixing blue green light, thus Ra and Qa improve, but with about 30% blue green light mixing ratio for boundary, Ra, Qa will maintain or decline.Thus, the ratio of blue green light it is preferable that less than 30%.On the other hand, according to JIS Z 8725:1999, in the scope that aberration duv is in-0.02≤duv≤0.02, correlated colour temperature can be expressed as.If depart from this scope, then cannot be defined as the white possessing correlated colour temperature, therefore become in just (plus) side with green, to become with pink colour in negative (minus) side factitious photochromic.In the scope of this aberration duv, average color rendering index Ra and television lighting colour developing evaluation number Qa presents good value, and the luminous flux of blue-green light source 18C is the scope of about less than 16% relative to the ratio of the luminous flux of white light source 18W.If consider himself naturality photochromic, then more preferably glaucous mixing ratio is set to less than 17%.
And, if average color rendering index Ra uprises, then there is the tendency that efficiency declines, but the efficiency of blue-green light source 18C declines, and for the lighting device 10 combined by white light source 18W and blue-green light source 18C, can maintain high efficiency few.
Next, the light source 18 of the central authorities of illumination apparatus 10 is described for the situation of both blue-green light source 18C and red light source 18R.Structure and the characteristic of white light source 18W and blue-green light source 18C are described above.
Red light source 18R sends light as described below, and the peak wavelength of this light is 620nm ~ 660 nm, and meets 0.48≤x≤0.72,0.28≤y≤0.45 on xy chromatic diagram.Red light source 18R is the red LED with described colourity.Further, the aggregate value of the luminous flux of blue-green light source 18C and the luminous flux of red light source 18R is more than 8% of the luminous flux of lighting device entirety.And then the luminous flux of blue-green light source 18C is greater than the luminous flux of red light source 18R.
Fig. 6 represents point Light distribation C relatively, this relatively point Light distribation C be in point Light distribation A relatively of Fig. 2, with (white light) 95:(red light) ratio of the light flux ratio of 5 and red light that the red light source 18R that is mixed with dominant wavelength 640nm sends.
Fig. 7 represents point Light distribation D relatively, this relatively point Light distribation D be in point Light distribation A relatively of Fig. 2, with (white light) 90:(blue green light) 6:(red light) 4 the ratio of light flux ratio and red light that the red light source 18R of blue green light that the blue-green light source 18C that is mixed with dominant wavelength 500nm sends and dominant wavelength 640nm sends.
Table 2 represents white light source 18W, blue-green light source 18C and red light source 18R luminous flux separately and the light flux ratio of lighting device entirety.In addition, blue-green light source 18C and red light source 18R both can be set to same quantity by the light flux ratio of blue-green light source 18C and red light source 18R, utilize power subsystem to adjust light flux ratio, also can become the mode of the light flux ratio of regulation when full light to adjust blue-green light source 18C and red light source 18R quantity separately.
The light irradiated from lighting device 10 comprises from the white light of white light source 18W, from the blue green light of blue-green light source 18C and the red light from red light source 18R, becomes point Light distribation D relatively shown in Fig. 7.
Table 2
Table 3 represents point Light distribation B relatively, point Light distribation C relatively of white light source 18W+ red light source 18R, the relative point Light distribation D of white light source 18W+ blue-green light source 18C+ red light source 18R that relatively divide Light distribation A, white light source 18W+ blue-green light source 18C for white light source 18W, obtains the result of average color rendering index Ra and television lighting colour developing evaluation number Qa respectively.
Table 3
| Point Light distribation relatively | Ra | Qa |
| A | 82 | 66 |
| B | 85 | 90 |
| C | 93 | 83 |
| D | 96 | 96 |
By white light, in point Light distribation D relatively that blue green light and red light mix, compared with point Light distribation A relatively of only adularescent light, average color rendering index Ra and television lighting colour developing both evaluation number Qa all significantly uprises, and, compared with point Light distribation B relatively that white light and blue green light are mixed, average color rendering index Ra and television lighting colour developing both evaluation number Qa all uprises, especially average color rendering index Ra significantly uprises, and, compared with point Light distribation C relatively that white light and red light are mixed, average color rendering index Ra and television lighting colour developing both evaluation number Qa all uprises, especially television lighting colour developing evaluation number Qa significantly uprises.
Uprised by average color rendering index Ra, thus the color reprodubility of the object of observation of arena when observing from the people being positioned at arena can be improved.
Uprised by television lighting colour developing evaluation number Qa, thus when utilizing television camera also to play in arena to take, the color reprodubility of captured image can be improved, therefore, it is possible to the color reprodubility of the image improving reception broadcasting and show out on TV.
So, lighting device 10 is by being mixed white light, blue green light and red light and being irradiated, thus average color rendering index Ra can not only be improved, and television lighting colour developing evaluation number Qa can be improved, the color reprodubility of image when can improve the color reprodubility of the actual object of observation and televise.
And then, be more than 8% of the luminous flux of lighting device entirety by the aggregate value of the luminous flux of the luminous flux and red light source 18R that make blue-green light source 18C, thus sufficient color reprodubility can be guaranteed.If the aggregate value of the luminous flux of blue-green light source 18C and the luminous flux of red light source 18R is less than 8% of the luminous flux of lighting device entirety, then the ratio of blue green light and red light is few, therefore cannot obtain the abundant raising of color reprodubility.In addition, the aggregate value of the luminous flux of blue-green light source 18C and the luminous flux of red light source 18R is suitably set in the scope guaranteeing color reprodubility relative to the upper limit of the luminous flux of lighting device entirety, but is preferably less than 25%.
And then, by the luminous flux making the luminous flux of blue-green light source 18C be greater than red light source 18R, thus average color rendering index Ra can be improved, television lighting colour developing evaluation number Qa can be improved again.
And, when lighting device 10 possesses white light source 18W, blue-green light source 18C and red light source 18R, preferably, the luminous flux of blue-green light source 18C is less than 24% relative to the ratio of the luminous flux of white light source 18W, and the luminous flux of red light source 18R is less than 13% relative to the ratio of the luminous flux of white light source 18W.
Fig. 8 is that transverse axis gets the light flux ratio of blue-green light source 18C relative to white light source 18W, and the longitudinal axis gets the light flux ratio of red light source 18R relative to white light source 18W, represents the distribution of the average color rendering index Ra of the light mixed with each light flux ratio.
Fig. 9 is that transverse axis gets the light flux ratio of blue-green light source 18C relative to white light source 18W, and the longitudinal axis gets the light flux ratio of red light source 18R relative to white light source 18W, represents the distribution of the television lighting colour developing evaluation number Qa of the light mixed with each light flux ratio.
In addition, in Fig. 8 and Fig. 9, use white light source 18W, x=0.085 of correlated colour temperature 5000K and blue-green light source 18C, x=0.706 of y=0.587 and the red light source 18R of y=0.292.
Further, known according to Fig. 8, average color rendering index Ra be made to present the good value of more than 85, and suitably the longitudinal axis is less than 13%, and namely the luminous flux of red light source 18R is less than about 13% relative to the ratio of the luminous flux of white light source 18W.
Known according to Fig. 9, television lighting colour developing evaluation number Qa be made to present the good value of more than 85, and suitably transverse axis is less than 24%, and namely the luminous flux of blue-green light source 18C is less than about 24% relative to the ratio of the luminous flux of white light source 18W.
Therefore, for the lighting device 10 presenting following mixed light, average color rendering index Ra and the television lighting evaluation number Qa that develops the color is all good, the color reprodubility of image when can improve the color reprodubility of the actual object of observation and televise, described mixed light is that the luminous flux of blue-green light source 18C is less than 24% relative to the ratio of the luminous flux of white light source 18W, and the mixed light that the luminous flux of red light source 18R is less than 13% relative to the ratio of the luminous flux of white light source 18W.
Next, Figure 10 represents the 2nd embodiment.In addition, identical symbol is used for the structure identical with the 1st embodiment, and omit illustrating for this structure and action effect.
Figure 10 represents arenic plane, multiple lighting devices 10 that arena 30 possesses the place 31 of carrying out racing, the auditorium 32 arranged around place 31 and throws light on to (mainly place 31) in arena 30.Multiple lighting device 10 is such as arranged on and is adjacent to arena 30 and erects the top of multiple pillars 33 arranged, or when arena 30 possesses roof, multiple lighting device 10 is arranged at roof.
Lighting device 10 comprises multiple 1st lighting device 10a and at least 1 the 2nd lighting device 10b.The basic structure of lighting device 10 is same with the structure shown in Fig. 1.
1st lighting device 10a sends the white light of correlated colour temperature 3000K ~ 6500K, and this point of Light distribation is same with point Light distribation A relatively shown in Fig. 2.7 light sources 18 that 1st lighting device 10a is equivalent to the lighting device 10 shown in Fig. 1 are all the situation of white light source 18W.
2nd lighting device 10b sends light as described below, and the peak wavelength of this light is 490nm ~ 520nm, and half breadth is below 60nm, and meets 0.08≤x≤0.21,0.27≤y≤0.72 on the xy chromatic diagram shown in Fig. 3.7 light sources 18 that 2nd lighting device 10b is equivalent to the lighting device 10 shown in Fig. 1 are all the situation of both blue-green light source 18C or blue-green light source 18C and red light source 18R.
Further, the light from the 1st lighting device 10a be arranged in arena 30 mixed with the light from the 2nd lighting device 10b and exposed in arena 30 (mainly place 31).
The light splitting distribution of shadow surface become from the 1st lighting device 10a white light, with point Light distribation mixed from the blue green light of the 2nd lighting device 10b or blue green light and red light.When this light splitting is distributed in the 2nd lighting device 10b to irradiate blue green light and the light flux ratio of white light and blue green light is 90:10, same with point Light distribation B relatively shown in Fig. 4, when the 2nd lighting device 10b irradiates blue green light and red light and the light flux ratio of white light, blue green light and red light is 90:6:4, and relatively divide Light distribation D same shown in Fig. 7.Therefore, it is possible to improve average color rendering index Ra and television lighting colour developing evaluation number Qa.
And, because the 1st lighting device 10a and the 2nd lighting device 10b is independent, therefore by adjusting the 1st lighting device 10a be arranged in arena 30 and the number of units ratio of the 2nd lighting device 10b, thus can free setting white light and the light flux ratio of blue green light or the light flux ratio of white light, blue green light and red light.
So, by together using the 2nd lighting device 10b sending blue green light or the 2nd lighting device 10b sending blue green light and red light with the 1st lighting device 10a sending white light, and the number of units ratio adjusting these lighting devices is to set light flux ratio, thus the color reprodubility of image when can improve the color reprodubility of the actual object of observation and televise.Further, the lighting space method for designing of the color reprodubility raising realized in the lighting space of arena 30 and so on can be provided for.
Next, Figure 11 illustrates the 3rd embodiment.In addition, identical symbol is used for the structure identical with described embodiment, and omit illustrating for this structure and action effect.In addition, the basic structure of lighting device 10 is same with the structure shown in Fig. 1.
Figure 11 represents the profile of the light source 18 of lighting device 10.Light source 18 is provided with multiple blue led 41 on the substrate 40, and cover these blue leds 41 and be formed with luminescent coating 42.Luminescent coating 42 contains in the transparent resins such as silicone (silicone) resin and is dispersed with yellow fluorophor 43Y and green-emitting phosphor 43G equably.
Blue led 41 has peak wavelength in the region of 400nm ~ 480nm.
Green-emitting phosphor 43G has peak wavelength in the region of 480nm ~ 520nm, and half breadth is below 50nm.
If the maximum of energy is set to 1, be then more than 0.6 in the scope being distributed in 520nm ~ 600nm from the relative light splitting of the light of luminescent coating 42 outgoing.
The light splitting distribution of light source 18 becomes point Light distribation white light and blue green light mixed.This point of Light distribation is same with point Light distribation B relatively shown in Fig. 4.
So, lighting device 10 irradiates from light source 18 light white light and blue green light mixed, therefore average color rendering index Ra can not only be improved, and television lighting colour developing evaluation number Qa can be improved, the color reprodubility of image when can improve the color reprodubility of the actual object of observation and televise.
And, in the transparent resin of luminescent coating 42, except yellow fluorophor 43Y and green-emitting phosphor 43G, also can containing being also dispersed with red-emitting phosphors 43R equably.
Red-emitting phosphors 43R has peak wavelength in the region of 600nm ~ 680nm.
If the maximum of energy is set to 1, being then distributed in the scope of 520nm ~ 660nm from the relative light splitting of the light of luminescent coating 42 outgoing is more than 0.6.
The light splitting distribution of light source 18 becomes point Light distribation white light, blue green light and red light mixed.This point of Light distribation is same with point Light distribation D relatively shown in Fig. 7.
So, lighting device 10 irradiates from light source 18 light white light, blue green light and red light mixed, therefore average color rendering index Ra can not only be improved, and television lighting colour developing evaluation number Qa can be improved, the color reprodubility of image when can improve the color reprodubility of the actual object of observation and televise.
Some embodiments of the present utility model are illustrated, but these embodiments are only illustration, are not intended the scope limiting utility model.The embodiment of these novelties can be implemented with other various forms, in the scope of purport not departing from utility model, can carry out various omission, displacement, change.These embodiments or its be out of shape be included in utility model scope or purport in, and to be included in the scope with its equalization.
Accompanying drawing explanation
Fig. 1 is the stereogram of the lighting device representing the 1st embodiment.
Fig. 2 is the relative light splitting distribution map of the white light source of the lighting device representing the 1st embodiment.
Fig. 3 is the chromatic diagram of the chromaticity range of the blue-green light source of the expression lighting device representing the 1st embodiment.
Fig. 4 is the relative light splitting distribution map of the white light source+blue-green light source of the lighting device representing the 1st embodiment.
Fig. 5 is the chart of the relation of the light flux ratio of blue-green light source relative to white light source of the expression lighting device representing the 1st embodiment, average color rendering index Ra and television lighting colour developing evaluation number Qa and aberration.
Fig. 6 is the relative light splitting distribution map of the white light source+red light source of the lighting device representing the 1st embodiment.
Fig. 7 is the relative light splitting distribution map of the white light source+red light source+blue-green light source of the lighting device representing the 1st embodiment.
Fig. 8 is the blue-green light source of the expression lighting device representing the 1st embodiment and red light source relative to the chart of the light flux ratio of white light source and the relation of average color rendering index Ra.
The chart of relation of Fig. 9 to be the blue-green light source of the expression lighting device representing the 1st embodiment and red light source relative to the light flux ratio of white light source and television lighting develop the color evaluation number Qa.
Figure 10 is the arenic plane of the lighting device arranging expression the 2nd embodiment.
Figure 11 is the profile of the light source of the lighting device representing the 3rd embodiment.
Reference numeral:
10: lighting device
10a: the 1 lighting device
10b: the 2 lighting device
11: body
12: power subsystem
13: setting table
16: housing
17: diffuser
18: light source
18C: as the blue-green light source (cyan light source) of the 2nd light source
18R: as the red light source of the 3rd light source
18W: white light source
19: reflector
30: arena
31: place
32: auditorium
33: pillar
40: substrate
41: blue led
42: luminescent coating
43G: green-emitting phosphor
43R: red-emitting phosphors
43Y: yellow fluorophor
Claims (7)
1. a lighting device, is characterized in that, comprising:
White light source;
Blue-green light source, has peak wavelength in the region of 490nm ~ 520nm, and
The luminous flux of described blue-green light source is less than 30% relative to the ratio of the luminous flux of described white light source.
2. lighting device according to claim 1, is characterized in that, comprising:
Red light source, has peak wavelength in the region of 620nm ~ 660nm,
The total luminous flux of described blue-green light source and described red light source is more than 8% of the overall luminous flux of lighting device.
3. a lighting device, is characterized in that, comprising:
White light source, correlated colour temperature is 3000K ~ 6500K; And
2nd light source, is emitted in light xy chromatic diagram meeting 0.08≤x≤0.21,0.27≤y≤0.72, and
The luminous flux of described 2nd light source is less than 30% relative to the ratio of the luminous flux of described white light source.
4. lighting device according to claim 3, is characterized in that, comprising:
Red light source, has peak wavelength in the region of 620nm ~ 660nm,
The total luminous flux of described 2nd light source and described red light source is more than 8% of the overall luminous flux of lighting device.
5. a lighting device, is characterized in that, comprising:
White light source, correlated colour temperature is 3000K ~ 6500K;
2nd light source, is emitted in light xy chromatic diagram meeting 0.08≤x≤0.21,0.27≤y≤0.72; And
3rd light source, is emitted in light xy chromatic diagram meeting 0.48≤x≤0.72,0.28≤y≤0.45, and
The luminous flux of described 2nd light source is less than 24% relative to the ratio of the luminous flux of described white light source and the luminous flux of described 3rd light source is less than 13% relative to the ratio of the luminous flux of described white light source.
6. a lighting device, is characterized in that, comprising:
Blue LED, has peak wavelength in the region of 400nm ~ 480nm; And
Luminescent coating, comprises yellow fluorophor and green-emitting phosphor, and covers described blue LED, and described green-emitting phosphor has peak wavelength in the region of 480nm ~ 520nm and half breadth is below 50nm.
7. lighting device according to claim 6, is characterized in that,
Described luminescent coating is included in the red-emitting phosphors in the region of 600nm ~ 680nm with peak wavelength.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014-177952 | 2014-09-02 | ||
| JP2014177952A JP6376338B2 (en) | 2014-09-02 | 2014-09-02 | Lighting device |
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| Publication Number | Publication Date |
|---|---|
| CN204717399U true CN204717399U (en) | 2015-10-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520157608.5U Expired - Fee Related CN204717399U (en) | 2014-09-02 | 2015-03-19 | Lighting device |
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| JP (1) | JP6376338B2 (en) |
| CN (1) | CN204717399U (en) |
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|---|---|---|---|---|
| JP6801549B2 (en) * | 2017-03-27 | 2020-12-16 | 東芝ライテック株式会社 | Lighting equipment for tennis courts |
| JP7018595B2 (en) * | 2018-09-10 | 2022-02-14 | パナソニックＩｐマネジメント株式会社 | Lighting system for stadium |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5909694B2 (en) * | 2011-01-24 | 2016-04-27 | パナソニックＩｐマネジメント株式会社 | Lighting device |
| US20130143334A1 (en) * | 2011-12-01 | 2013-06-06 | Hung Ta Trading Co., Ltd. | Method of enhancing color rendering index of a white led |
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2014
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| Publication number | Publication date |
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| JP2016051681A (en) | 2016-04-11 |
| JP6376338B2 (en) | 2018-08-22 |
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