CN204164866U - Light source cell and ligthing paraphernalia - Google Patents

Light source cell and ligthing paraphernalia Download PDF

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Publication number
CN204164866U
CN204164866U CN201420541683.7U CN201420541683U CN204164866U CN 204164866 U CN204164866 U CN 204164866U CN 201420541683 U CN201420541683 U CN 201420541683U CN 204164866 U CN204164866 U CN 204164866U
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CN
China
Prior art keywords
light
light source
emitting component
colour temperature
correlated colour
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Expired - Fee Related
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CN201420541683.7U
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Chinese (zh)
Inventor
野口瑶子
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Toshiba Lighting and Technology Corp
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Toshiba Lighting and Technology Corp
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Abstract

The utility model provides a kind of light source cell and ligthing paraphernalia.According to embodiment, provide a kind of light source cell, it comprises three kinds of white light sources and control part.Described three kinds of white light sources have chromaticity coordinate and irradiate below in the domain of definition of correlated colour temperature.The correlated colour temperature of described three kinds of white light sources is different.Described control part can carry out brightness adjustment control for each kind to described three kinds of white light sources.The scheme that the utility model provides can reproduce the correlated colour temperature of wider scope, can suppress again the decline of luminous efficiency or can meet the comfortableness of user.

Description

Light source cell and ligthing paraphernalia
Technical field
Embodiment of the present utility model relates to a kind of light source cell (unit) and ligthing paraphernalia.
Background technology
Such as, the exploitation using light-emitting components such as light emitting diodes (Light Emitting Diode, LED) as the ligthing paraphernalia of light source is being advanced.As using light emitting diode as the ligthing paraphernalia of light source, include, for example lamp affixed to the ceiling (ceiling light), basic illuminating lamp (baselight) or the bulb-shaped LED etc. on ceiling surface being arranged on house etc.For this type of ligthing paraphernalia, expect to be not only illuminate around simply, also will build with the variation of form of life the suitable light space conformed to living scene (scene).Such as, expect the correlated colour temperature reproducing wider scope, and suppress the decline of luminous efficiency.Or, expect the functions such as following: such as consider the impact etc. that the environment of surrounding or light cause organism, and meet the comfortableness of user.
Prior art document
Patent document
Patent document 1: Japanese Patent Laid-Open 2013-98038 publication
Utility model content
[utility model problem to be solved]
Embodiment of the present utility model provides a kind of light source cell and ligthing paraphernalia, can reproduce the correlated colour temperature of wider scope, luminous efficiency can be suppressed again to decline or can meet the comfortableness of user.
[technological means of dealing with problems]
According to embodiment, provide a kind of light source cell, it comprises three kinds of white light sources and control part.Described three kinds of white light sources have chromaticity coordinate and irradiate below in the domain of definition of correlated colour temperature.The correlated colour temperature of described three kinds of white light sources is different.Described control part can carry out brightness adjustment control for each kind to described three kinds of white light sources.
Further, provide a kind of light source cell, described three kinds of white light sources comprise:
1st light-emitting component of the 1st correlated colour temperature;
2nd light-emitting component of 2nd correlated colour temperature lower than described 1st correlated colour temperature; And
Than the 3rd light-emitting component of described 1st correlated colour temperature and low the 3rd correlated colour temperature of described 2nd correlated colour temperature,
Described 2nd correlated colour temperature is present in the region of the correlated colour temperature can reproduced by described 1st light-emitting component and described 3rd light-emitting component.
According to another embodiment, a kind of light source cell is provided, comprises:
1st light source of the 1st correlated colour temperature;
2nd light source, more described 1st light source and be arranged on outside, and colour temperature is different from described 1st correlated colour temperature; And
Control part, can carry out brightness adjustment control respectively to described 1st light source and described 2nd light source,
The ratio of blue light contained in the light of described 1st light source radiation is lower than the ratio of blue light contained in the light of described 2nd light source radiation.
Further, in the scope of described 1st light source more than 580 nanometers, there is peak wavelength, in the scope of described 2nd light source below 500 nanometers, there is peak wavelength.
Further, the ratio that the energy of in the relative spectral power distribution of described 1st light source, below 500 nanometers wavelength region is shared in the energy of full wavelength region is less than 15%,
The ratio that the energy of in the relative spectral power distribution of described 2nd light source, below 500 nanometers wavelength region is shared in the energy of full wavelength region is more than 25%.
According to another embodiment, a kind of ligthing paraphernalia is provided, comprises: described light source cell.
(effect of utility model)
According to embodiment of the present utility model, a kind of light source cell and ligthing paraphernalia can be provided, the correlated colour temperature of wider scope can be reproduced, the decline of luminous efficiency can be suppressed again or the comfortableness of user can be met.
Accompanying drawing explanation
Fig. 1 (a) and Fig. 1 (b) is the schematic isometric of the ligthing paraphernalia representing the light source cell possessing embodiment.
Fig. 2 is the signal exploded view of the ligthing paraphernalia representing embodiment.
Fig. 3 (a) and Fig. 3 (b) is the schematic plan view of the light source cell representing embodiment.
Fig. 4 is the schematic plan view of the example of the light source cell representing embodiment.
Fig. 5 is the block diagram of the structure of the major part of the light source cell representing embodiment.
Fig. 6 is the schematic plan view of the example of the light source cell representing another embodiment.
Fig. 7 (a) and Fig. 7 (b) is the curve map of the relative spectral power distribution representing the light that the light-emitting component of embodiment radiates.
[explanation of symbol]
100: ligthing paraphernalia
110: power supply unit
110a: upper surface
111: fitting portion
113: adapter guide portion
115: control part
115a: set information input/out parts
115b: brightness adjustment control means
115c: store means
116: circuit component
117a:PWM control circuit
117b: ON-OFF control circuit
118a: pattern storage portion
120: apparatus body
120a: lower surface
121: hole
127: remote control signal receiver portion
130,130a: light source portion
131: substrate
131a: lower surface
133: light-emitting component
133a: the 1 light-emitting component
133b: the 2 light-emitting component
133c: the 3 light-emitting component
133d: the 1 light-emitting component
133e: the 2 light-emitting component
134a: the 1 row
134b: the 2 row
134c: the 3 row
134d: the 4 row
135: electric wire
137: power suppling part
138a: the 1 group (group of inner circumferential side)
138b: the 2 group (group of outer circumferential side)
139a: the row of inner circumferential side
139b: the row of outer circumferential side
140: distribution controls portion
141: lens section
141a: part 1
141b: part 2
145: protuberance
150: cover
150a: lower surface
160: indirect light light source portion
161: substrate
163: light-emitting component
165: cover
180: remote-controlled transmitter
210,210a: light source cell
Al: region
AC: commercial ac power source
CN: connector (electrical connection section)
Detailed description of the invention
Below, with reference to accompanying drawing, embodiment is described.For the same section in accompanying drawing, also suitably description is omitted to mark identical numbering, is only described different piece.In addition, accompanying drawing is schematic or conceptual figure, and the thickness of each several part may not be identical with reality with size ratio between the relation of width, part etc.And, even if when representing same section, sometimes also can represent with mutually different size or ratio depending on accompanying drawing.
Fig. 1 (a) and Fig. 1 (b) is the schematic isometric of the ligthing paraphernalia representing the light source cell possessing embodiment.
Fig. 2 is the signal exploded view of the ligthing paraphernalia representing embodiment.
Fig. 3 (a) and Fig. 3 (b) is the schematic plan view of the light source cell representing embodiment.
Fig. 1 (a) is the schematic isometric of the light-emitting area side of the ligthing paraphernalia representing the light source cell possessing embodiment.Fig. 1 (b) be the ligthing paraphernalia representing the light source cell possessing embodiment be the schematic isometric of opposition side with light-emitting area.Fig. 3 (a) is the schematic plan view of the light-emitting area side of the light source cell representing embodiment.Fig. 3 (b) is by the signal enlarged drawing of the region Al amplifying observation shown in Fig. 3 (a).
Ligthing paraphernalia 100 shown in Fig. 1 (a) ~ Fig. 3 (b) is the ligthing paraphernalias being installed to the average family that the ceiling lamp holder main body (hook ceiling body) as distributor uses, and described ceiling lamp holder main body is arranged on utensil installed surface.Ligthing paraphernalia 100 shown in Fig. 1 (a) ~ Fig. 3 (b) is by carrying out room lighting from the light of the light source portion radiation with the multiple light-emitting components be arranged on substrate.But the ligthing paraphernalia of embodiment is not limited to this.Such as, the ligthing paraphernalia of embodiment also can based on illuminating lamp or bulb-shaped lamp (light) etc.Below, lifting so-called lamp affixed to the ceiling is that example is described.
As shown in Fig. 1 (a) ~ Fig. 3 (b), the ligthing paraphernalia 100 of embodiment possesses light source cell 210, distribution controls portion 140 and cover (cover) 150.Light source cell 210 has power supply unit 110, apparatus body 120 and light source portion 130.
Cover 150 is such as milky acrylic resin formed body, has light transmission.The lower surface 150a of cover 150 forms light-emitting area.
The profile of the ligthing paraphernalia 100 shown in Fig. 1 (a) ~ Fig. 3 (b) is circular, but is not limited thereto.Such as, the profile of ligthing paraphernalia 100 also can be oval or square.
Power supply unit 110 has by the flat board of the metal materials such as cold-rolled steel sheet underframe (chassis) formed thereby.The underframe of power supply unit 110 is combined into ring-type.In the inside of the underframe of power supply unit 110, be provided with the circuit component 116 (with reference to Fig. 2) comprising control part 115.As shown in Fig. 1 (b), power supply unit 110 has fitting portion 111 in the central authorities of upper surface 110a.Fitting portion 111 is such as embedded in the ceiling lamp holder main body as connection device (distributor) be arranged on the ceiling of house, and apparatus body 120 is fixed on ceiling.On fitting portion 111, the adapter guide portion (adapter guide) 113 guided ceiling lamp holder main body is installed.
In present specification, for convenience of explanation, observe from power supply unit 110 and cover 150 side is called " below ", observe from cover 150 and power supply unit 110 side is called " top ".Like this too in other inscapes.
Apparatus body 120 is such as by the underframe of the plate forming of the metal materials such as cold-rolled steel sheet.In the substantially central portion of apparatus body 120, be formed with the hole 121 that adapter guide portion 113 is passed.
Light source portion 130 has substrate 131 and multiple light-emitting component (light source) 133, and arranges separably with power supply unit 110 via connecting portion.Light-emitting component 133 is arranged on the lower surface 131a of substrate 131.The structure that 2 plate bases that substrate 131 has the roughly arc-shaped of the width dimensions by having regulation are formed by connecting, is formed as roughly ring-type on the whole.That is, the substrate 131 that entirety is formed as roughly ring-type has 2 substrates through segmentation.Multiple substrate 131 through segmentation, is electrically connected by connector (connector) (electrical connection section) CN via electric wire 135 etc. in the inner side of substrate 131.Substrate 131 is fixed in the lower surface 120a of apparatus body 120.In addition, substrate 131 also can have 4 substrates through segmentation.
By using the substrate through segmentation, the cutting part of substrate 131 can be utilized to absorb thermal contraction to suppress the distortion of substrate 131.In addition, preferably use and be divided into multiple substrates, but also can use the plate base being formed integrally as roughly ring-type.And then, in the inner circumferential side of specific substrate 131, be provided with power suppling part 137.Specifically, power suppling part 137 is connector CN.The output line W be electrically connected with ignition device is connected to power suppling part 137, and the Wiring pattern via substrate 131 supplies electric power to multiple light-emitting component 133.
At the lower surface 131a of substrate 131, be coated with the component that the radiating light of light-emitting component 133 is reflected.Such as, at the lower surface 131a of substrate 131, the resin of the titanium oxide etc. that is scattered here and there is coated with.Be coated with reflecting member by the lower surface 131a at substrate 131, thus can prevent the brightness of the central portion of apparatus body 120 from declining.
The distribution that substrate 131 such as has the insulative substrate such as glass epoxy resin and uses Copper Foil and formed.Reflecting member is coated on the lower surface 131a of the substrate 131 except the part except being equipped with light-emitting component 133.That is, substrate 131 has the distribution covered by reflecting member, and is electrically connected by multiple light-emitting component 133.
Light-emitting component 133 is LED (Light Emitting Diode).Light-emitting component 133 is the LED (package) of surface installing type.As shown in Fig. 3 (a) and Fig. 3 (b), LED is installed along the circumferential direction of the substrate 131 of multi-disc (being 2) annulus (circle) shape.And LED is arranged on different roughly circumferentially concentrically ringed of radius throughout multiple row (being 2 row in the example of Fig. 3 (a)).That is, LED is installed throughout row (the 1st row) 139a of inner circumferential side and row (the 2nd row) 139b of outer circumferential side.
LED roughly has: LED chip (chip), is disposed in the cavity (cavity) formed by pottery (ceramics) or synthetic resin; And the translucent resin of the mold (mold) such as epoxy system resin or silicone (silicone) resin, for sealing LED chip.
The light source portion 130 of embodiment has multiple light-emitting component 133.More specifically, the light source portion 130 of embodiment has the mutually different three kinds of light-emitting components 133 of correlated colour temperature.For the LED be installed on the row 139a of inner circumferential side, correlated colour temperature is about 6500 Kelvin (Kelvin) (K) left and right the 1st light-emitting component (the 1st light source) 133a of (the 1st correlated colour temperature), correlated colour temperature is about about 3000K (the 2nd correlated colour temperature) the 2nd light-emitting component (the 2nd light source) 133b and correlated colour temperature is used to be the 3rd light-emitting component (the 3rd light source) 133c of about about 2000K (the 3rd correlated colour temperature).1st light-emitting component 133a radiates the light of color of sunshine (D).2nd light-emitting component 133b radiates the light of light bulb color (L).
1st light-emitting component 133a, the 2nd light-emitting component 133b and the 3rd light-emitting component 133c circumferentially successively with the 1st light-emitting component 133a, the 2nd light-emitting component 133b and the 3rd light-emitting component 133c air-ground opening roughly at equal intervals and configuring continuously.LED chip is the LED chip of radiation blue light.Fluorophor has been mixed in translucent resin.In order to the light of the daylight colour system of light bulb color (L) and color of sunshine (D) can be radiated, as fluorophor, main use yellow fluorophor or use red-emitting phosphors in order to supplementary red color components, described yellow fluorophor radiates the light of the yellow system that there is complementary color relationship with blue light.The installation form of the LED of the row 139b of outer circumferential side is same with the installation form of the LED of the row 139a of inner circumferential side.
In present specification, for convenience of explanation, be the 1st light-emitting component 133a of about about 6500K by correlated colour temperature, to be the 2nd light-emitting component 133b of about about 3000K and correlated colour temperature be correlated colour temperature in the 3rd light-emitting component 133c of about about 2000K that at least any one is called " white light source " or " main light source ".In other words, " white light source " and " main light source " refers to have chromaticity coordinate in the domain of definition of correlated colour temperature, and the main light source irradiating below.
In addition, the arrangement of the 1st light-emitting component 133a, the 2nd light-emitting component 133b and the 3rd light-emitting component 133c is not specific, can be sequentially different yet, such as, can arrange according to the order of the 2nd light-emitting component 133b, the 1st light-emitting component 133a, the 3rd light-emitting component 133c yet.And preferably, adjacent light-emitting component radiates the mutually different light of correlated colour temperature, but is not particularly limited.As an example, also as the 1st light-emitting component 133a, the 1st light-emitting component 133a, the 2nd light-emitting component 133b, the 2nd light-emitting component 133b, the 3rd light-emitting component 133c and the 3rd light-emitting component 133c, light-emitting component every two ground of radiation with coloured light can be configured continuously.
Control part 115 can carry out the brightness adjustment control (unit control) for often kind of light-emitting component 133.The details of the brightness adjustment control of control part 115 will be described later.
Distribution controls portion 140 is fixed in apparatus body 120, covering luminous element 133 and through segmentation multiple substrates 131 between electrical connection section and power suppling part.The material in distribution controls portion 140 such as comprises resin.Distribution controls portion 140 covers whole light source portion (charging part) 130.Therefore, distribution controls portion 140 has the function of protection light source portion 130.In addition, in the inner circumferential side in distribution controls portion 140, be formed with the protuberance 145 corresponding with the electrical connection section of substrate 131 and power suppling part.Protuberance 145 is formed as size longer than connector size on ring-type direction and circumferential direction.That is, distribution controls portion 140 is for being loaded and unloaded on the structure of apparatus body 120 by rotating, and therefore has protuberance 145, and this protuberance 145 is longer than connector size in the circumferential direction, in order to avoid interfere with electrical connection section CN and electric wire 135 when distribution controls portion 140 rotates.
As shown in Figure 2, distribution controls portion 140 has lens (lens) portion 141.Lens section 141 has part 1 141a and part 2 141b.Part 1 141a covers the light-emitting component 133 of the row 139a of inner circumferential side, controls the luminous intensity distribution of the light-emitting component 133 of the row 139a of inner circumferential side.Part 2 141b covers the light-emitting component 133 of the row 139b of outer circumferential side, controls the luminous intensity distribution of the light-emitting component 133 of the row 139b of outer circumferential side.That is, the distribution controls portion 140 of embodiment controls the luminous intensity distribution of the light-emitting component 133 arranged along each row independently for often arranging.
Thereby, it is possible to alleviate aberration and the brightness disproportionation of lower surface (light-emitting area) 150a of cover 150, realize the homogenising of colourity and brightness.
The light source cell 210 of embodiment is further illustrated with reference to accompanying drawing.
Fig. 4 is the schematic plan view of the example of the light source cell representing embodiment.
Table 1 is the table of the example of the specification of the light-emitting component representing embodiment.
Fig. 5 is the block diagram of the structure of the major part of the light source cell representing embodiment.
Fig. 4 is the schematic plan view of the light source cell observing embodiment from light-emitting area side.
In the example shown in Fig. 4 and table 1, be provided with 34 the 1st light-emitting component 133a.That is, the row 139a along inner circumferential side is provided with 17 the 1st light-emitting component 133a, and circumferentially the row 139b of side is provided with 17 the 1st light-emitting component 133a.The configuration of the 2nd light-emitting component 133b and the configuration of the 3rd light-emitting component 133c same with the configuration of the 1st light-emitting component 133a.1st light-emitting component 133a, the 2nd light-emitting component 133b and the 3rd light-emitting component 133c other specifications are separately as shown in table 1.But the 1st light-emitting component 133a, the 2nd light-emitting component 133b and the 3rd light-emitting component 133c specification are separately not limited to this.
[table 1]
As shown in Figure 5, power supply unit 110 is connected to commercial ac power source AC.Light source portion 130 is connected to power supply unit 110.
Power supply unit 110 plays function as dc source, accepts commercial ac power source AC and generates direct current output.Light source portion 130 is as the aforesaid situation about Fig. 1 (a) ~ Fig. 3 (b).
Indirect light light source portion 160, as shown in Fig. 1 (b), is provided in the rear side (upside) of apparatus body 120, mainly has the function illuminating ceiling surface.Multiple indirect light light source portion 160 is arranged on fitting portion 111 around, has substrate 161 and multiple light-emitting component 163.Substrate 161 is such as formed as roughly OBL flat board.Light-emitting component 163 is that substantially linear is arranged on substrate 161 with arranging along the length direction of substrate 161.The correlated colour temperature of light-emitting component 163 is about about 3000K.Light-emitting component 163 radiates the light of light bulb color (L).
Indirect light light source portion 160 is installed in the position everywhere of the sidewall on power supply unit 110 top.More specifically, as shown in Fig. 1 (b), the top of power supply unit 110 is formed as roughly quadrangle.Indirect light light source portion 160 is installed in the sidewall in roughly power supply unit 110 top of the shape of quadrangle.The indirect light light source portion 160 being arranged on position is everywhere covered by cover 165 respectively.
Control part 115 has set information input/out parts 115a, brightness adjustment control parts 115b and memory unit 115c.Brightness adjustment control parts 115b is connected to set information input/out parts 115a.Memory unit 115c is connected to set information input/out parts 115a.On set information input/out parts 115a, be connected with remote control (remote control) signal receiving part 127.In memory unit 115c, be provided with pattern (mode) storage part 118a.
In brightness adjustment control parts 115b, be provided with pulsewidth modulation (Pulse Width Modulation, PWM) control circuit 117a and switch (switching) control circuit 117b.ON-OFF control circuit 117b is connected to pwm control circuit 117a.As shown in Figure 5, pwm control circuit 117a and ON-OFF control circuit 117b respectively for the 1st light-emitting component 133a, the 2nd light-emitting component 133b, the 3rd light-emitting component 133c and indirect light light source portion 160 light-emitting component 163 and arrange.That is, 4 pwm control circuit 117a and 4 ON-OFF control circuit 117b is provided with.
Thus, control part 115 can control light source portion 130 and indirect light light source portion 160 independently.And control part 115 can carry out the brightness adjustment control (unit control) for often kind of illuminant colour.Therefore, for light source portion 130, the light modulation ratio of often kind of illuminant colour can be adjusted with the changeable light output making often kind of illuminant colour, to correlated colour temperature be the 1st light-emitting component 133a of about about 6500K, the illuminant colour of correlated colour temperature to be the 2nd light-emitting component 133b of about about 3000K and correlated colour temperature be the 3rd light-emitting component 133c of about about 2000K carries out colour mixture, to show required illuminant colour (individual control mode).Such as, user can pass through operating and remote controlling transmitter 180, thus the light modulation ratio of adjustment often kind of illuminant colour is with the light output changing often kind of illuminant colour.
Herein, according to the opinion that the present utility model people obtains, comprise the secretion of the Xanthophyll cycle melatonin (melatonin) of blue light.Therefore, if the illumination that user is subject to comprising blue light is penetrated, then latent time of falling asleep is elongated sometimes.That is, fall asleep and hindered sometimes.Therefore, for light source cell 210 and ligthing paraphernalia 100, expect the correlated colour temperature reproducing wider scope.But, the correlated colour temperature in order to reproduce wider scope is provided with such as two kinds of white light sources, the difference between the correlated colour temperature of a white light source and the correlated colour temperature of another white light source must be strengthened further.So luminous efficiency declines.
More specifically, the visual sense efficiency of light source is weighted than visual sense degree by International Commission on Illumination (CommissionInternationale de l ' Eclairage, CIE) standard.According to CIE standard than visual sense degree, when photopic vision, wavelength is that the visual sense degree of the light of 555 nanometers (nm) reaches maximum.Therefore, the luminous efficiency that relatively many relative energies are distributed in the LED of the low colour temperature of long wavelength side is general lower.
Such as, suppose to realize correlated colour temperature and be 2200K and luminous flux is the situation of the light of 1000 lumens (lumen) (lm).Now, control part 115 carrys out the dimming light sources of light source to 6500K and 2000K with the light flux ratio of 1.5:8.5.So the light of 2200K consumes the electric power of 20 watts of (Watt) (W).And luminous efficiency is 50lm/W.
On the other hand, the light source cell 210 of embodiment has the mutually different three kinds of light-emitting components 133 of correlated colour temperature.In the example shown in Fig. 4 and table 1, the 2nd light-emitting component 133b that light source cell 210 has the 1st light-emitting component 133a that correlated colour temperature is about about 6500K, correlated colour temperature is about about 3000K and correlated colour temperature are the 3rd light-emitting component 133c of about about 2000K.Now, to realize correlated colour temperature be 2200K and luminous flux is the light of 1000 lumens (lm) time, control part 115 carrys out the dimming light sources to the light source of 6500K, the light source of 3000K and 2000K with the light flux ratio of 0.5:3.0:6.5.So the light of 2200K consumes the electric power of 17W.And luminous efficiency is 58lm/W.Thus, light source cell has luminous efficiency during the mutually different three kinds of light-emitting components of correlated colour temperature, and luminous efficiency when having mutually different two kinds of light-emitting components of correlated colour temperature than light source cell is high.
According to embodiment, light source cell 210, in the region of the correlated colour temperature reproduced by two kinds of light-emitting components (being the 1st light-emitting component 133a and the 3rd light-emitting component 133c in embodiment), has the third light-emitting component (being the 2nd light-emitting component 133b in embodiment).Therefore, the light source cell 210 of embodiment and ligthing paraphernalia 100 can reproduce the correlated colour temperature of wider scope, can suppress again the decline of luminous efficiency.
Next, with reference to accompanying drawing, another embodiment is described.
Fig. 6 is the schematic plan view of the example of the light source cell representing another embodiment.
Fig. 7 (a) and Fig. 7 (b) is the curve map of the relative spectral power distribution representing the light that the light-emitting component of embodiment radiates.
Fig. 6 is the schematic plan view representing the light source cell observing embodiment from light-emitting area side.
Fig. 7 (a) is the curve map of the relative spectral power distribution of illustration the 1st light-emitting component.Fig. 7 (b) is the curve map of the relative spectral power distribution of illustration the 2nd light-emitting component.
As shown in Figure 6, the light source portion 130a of the light source cell 210a of embodiment has the mutually different two kinds of light-emitting components 133 of correlated colour temperature.For the LED be installed in the group 138a of inner circumferential side, use the 1st light-emitting component (the 1st light source) 133d that correlated colour temperature is about about 2700K.In the group 138a of inner circumferential side, be provided with the 1st row 134a and the 2nd and arrange 134b.The mutually different roughly concentric circles of 1st row 134a and the 2nd row 134b forming radius.The radius of the 2nd row 134b is greater than the radius of the 1st row 134a.1st light-emitting component 133d installs throughout the 1st row 134a and the 2nd row 134b.
For the LED be installed in the group 138b of outer circumferential side, use the 2nd light-emitting component (the 2nd light source) 133e that correlated colour temperature is about about 5000K.In the group 138b of outer circumferential side, be provided with the 3rd row 134c and the 4th and arrange 134d.1st row 134a, the 2nd row 134b, the mutually different roughly concentric circles of the 3rd row 134c and the 4th row 134d forming radius.The radius of the 3rd row 134c is greater than the radius of the 2nd row 134b.The radius of the 4th row 134d is greater than the radius of the 3rd row 134c.2nd light-emitting component 133e installs throughout the 3rd row 134c and the 4th row 134d.
As shown in Fig. 7 (a), the 1st light-emitting component 133d has peak wavelength in the scope of more than 580nm.In the relative spectral power distribution of the 1st light-emitting component 133d, the ratio shared in the energy of full wavelength region of the ENERGY E 1 of the wavelength region of below 500nm be 15% (percentage (percent)) below.In the example of the curve map shown in Fig. 7 (a), the ratio that the ENERGY E 1 of the wavelength region of below 500nm is shared in the energy of full wavelength region is about about 10%.
As shown in Fig. 7 (b), the 2nd light-emitting component 133e has peak wavelength in the scope of below 500nm.In the relative spectral power distribution of the 2nd light-emitting component 133e, the ratio that the ENERGY E 2 of the wavelength region of below 500nm is shared in the energy of full wavelength region is more than 25%.In the example of the curve map shown in Fig. 7 (b), the ratio that the ENERGY E 2 of the wavelength region of below 500nm is shared in the energy of full wavelength region is about about 34%.
Such as, control part 115 performs following control, that is, from being set to by the light output of the 1st all light-emitting component 133d and the 2nd all light-emitting component 133e maximum and illuminant colour being carried out to the full light state of colour mixture, gradually dim light is carried out to the 1st light-emitting component 133d that correlated colour temperature is about about 2700K.So the illuminant colour of full light state moves closer to the relatively less orange of blue component (orange) look.Then, light-emitting area diminishes towards central part.Thereby, it is possible to relatively reduce the composition of blue light contained in mixed light, reduce the melatonin degree of suppression of indoor occupant, thus can promote to sleep soundly.
Like this, the composition of the blue light of the 1st light-emitting component 133d is less than the composition of the blue light of the 2nd light-emitting component 133e.In other words, the ratio of blue light contained in the light that the ratio of contained in the light that radiates of the 1st light-emitting component 133d blue light is radiated lower than the 2nd light-emitting component 133e.
Accordingly, by configuration, there is the light source (being the 1st light-emitting component 133d and the 2nd light-emitting component 133e in embodiment) of mutually different relative spectral power distribution and can individually control, thus the scene of various light can be built.The quantity being arranged on the 1st light-emitting component 133d of light source cell 210a central part is less than the quantity of the 2nd light-emitting component 133e being arranged on light source cell 210a circumference.Change therefore, it is possible to realize low cost (cost), and, the generation of aberration can be suppressed.
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, replacement, change.In the scope that these embodiments and distortion thereof are included in utility model or purport, and be included in the scope with its equalization.

Claims (6)

1. a light source cell, is characterized in that, comprising:
Three kinds of white light sources, described three kinds of white light sources are the white light sources having chromaticity coordinate and irradiate below in the domain of definition of correlated colour temperature, and described correlated colour temperature is different; And
Control part, can carry out brightness adjustment control for each kind to described three kinds of white light sources.
2. light source cell according to claim 1, is characterized in that,
Described three kinds of white light sources comprise:
1st light-emitting component of the 1st correlated colour temperature;
2nd light-emitting component of 2nd correlated colour temperature lower than described 1st correlated colour temperature; And
Than the 3rd light-emitting component of described 1st correlated colour temperature and low the 3rd correlated colour temperature of described 2nd correlated colour temperature,
Described 2nd correlated colour temperature is present in the region of the correlated colour temperature can reproduced by described 1st light-emitting component and described 3rd light-emitting component.
3. a light source cell, is characterized in that, comprising:
1st light source of the 1st correlated colour temperature;
2nd light source, more described 1st light source and be arranged on outside, and colour temperature is different from described 1st correlated colour temperature; And
Control part, can carry out brightness adjustment control respectively to described 1st light source and described 2nd light source,
The ratio of blue light contained in the light of described 1st light source radiation is lower than the ratio of blue light contained in the light of described 2nd light source radiation.
4. light source cell according to claim 3, is characterized in that,
In the scope of described 1st light source more than 580 nanometers, there is peak wavelength,
In the scope of described 2nd light source below 500 nanometers, there is peak wavelength.
5. the light source cell according to claim 3 or 4, is characterized in that,
The ratio that the energy of in the relative spectral power distribution of described 1st light source, below 500 nanometers wavelength region is shared in the energy of full wavelength region is less than 15%,
The ratio that the energy of in the relative spectral power distribution of described 2nd light source, below 500 nanometers wavelength region is shared in the energy of full wavelength region is more than 25%.
6. a ligthing paraphernalia, is characterized in that, comprising:
Light source cell according to any one of claim 1 to 5.
CN201420541683.7U 2014-03-05 2014-09-19 Light source cell and ligthing paraphernalia Expired - Fee Related CN204164866U (en)

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Cited By (1)

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Publication number Priority date Publication date Assignee Title
CN105715999A (en) * 2016-02-29 2016-06-29 柳州格瑞斯光电科技有限公司 Sleep promoting lighting device

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JP6872732B2 (en) * 2017-04-18 2021-05-19 パナソニックIpマネジメント株式会社 lighting equipment
JP6917960B2 (en) * 2018-08-22 2021-08-11 日立グローバルライフソリューションズ株式会社 LED lighting fixtures

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105715999A (en) * 2016-02-29 2016-06-29 柳州格瑞斯光电科技有限公司 Sleep promoting lighting device

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