CN103906309A - Light source device and lighting device - Google Patents

Abstract

The present disclosure relates to a light source device and a lighting device, which can provide different physiological stimulation light. The light source device comprises a light emitting module and a control unit. The light emitting module provides light. The control unit switches the light emitted by the light emitting module between a first light and a second light, wherein the physiological stimulus value of the second light is smaller than that of the first light, and the color temperature of the second light is substantially the same as that of the first light.

Description

Light supply apparatus and lighting device

Technical field

The disclosure relates to a kind of light supply apparatus and lighting device, and is particularly related to a kind of light supply apparatus and lighting device that different physiological stimulation light are provided.

Background technology

Along with Edison (Thomas Alva Edison) invention bulb, the light source that electric power produces has not only been lighted night, has also lighted the mankind's civilization, by this artificial light source, the mankind are utilized the time at night, thereby have further driven the development of science and technology with education.And at light source, the impact of physiological stimulation is studied, Yasukouchi, research finds that the light source of high color temperature at night suppresses the secretion of melatonin than the light source of low colour temperature.Secondly from since calendar year 2001, the relation of the research of Branard to human eye and physiological effect (biological effect), further point out to illustrate the secretion of light source and melatonin and the relation of physiological effect, and show light source curve corresponding to physiological stimulation (2001Action Spectrum for Melatonin Regulation in Humans:Evidence for a Novel Circadian Photoreceptor) as Fig. 1.And further can illustrate that light source different wave length (400nm-550nm) is by Different Effects physiological stimulation (circadian stimulus, CS), judge the physiological stimulation influence degree of light source to human body, therefore, if in the time night or daytime using light source, need the frequency spectrum composition by being applicable to light source, appropriate artificial light light source is provided.

In addition,, for the object of power saving, current lighting device has the trend of light-emitting diode as light source module that adopts.But, in order to make light source module produce white light, be to utilize on blue light-emitting diode to be coated with fluorescent layer so that the blue light of part is converted to gold-tinted etc. mostly, and by blue light and mixing of the gold-tinted exciting producing white light.Above-mentioned blue light illumination is after human body retina, suppress the secretion of melatonin via Human Physiology clock system, there is higher physiological stimulation value, contribute to promote job performance, but, its main crest of blue light-emitting diode that general white light emitting diode (White LED) light source module uses is between 445nm to 460nm, according to light radiation bio-safety standard IEC 62471, effective blue light harm (Effective blue light hazard) that the blue light of this wave band causes the retina of eyes is the most serious.

Summary of the invention

Embodiment of the present disclosure provides a kind of light supply apparatus, comprises light emitting module and control unit.Light emitting module provides light.Control unit switches the light that light emitting module sends between the first light and the second light, and wherein the physiological stimulation value of the second light is less than the physiological stimulation value of the first light, and the second light is identical in fact with the colour temperature of the first light.

Embodiment of the present disclosure provides a kind of light supply apparatus, comprises light emitting module and control unit.Light emitting module provides light.Control unit switches the light that light emitting module sends between the first light and the second light, and wherein the physiological stimulation value of the first light has more the more than 5% of physiological stimulation value of the second light than the physiological stimulation value of the second light.

Embodiment of the present disclosure provides a kind of lighting device, comprises the first light source and secondary light source.The first light source is in order to provide the first light, and it has the first physiological stimulation value.Secondary light source is in order to provide the second light, and it has the second physiological stimulation value.Wherein, the first light has identical in fact colour temperature with the second light, and the first physiological stimulation value is different from the second physiological stimulation value.

Embodiment of the present disclosure provides a kind of lighting device, comprising: the first light source module, and transmitting the first light beam is in the first field of illumination, and wherein above-mentioned the first light source module, comprises blue light wafer, in order to produce blue light; And secondary light source module, transmitting the second light beam is in the second field of illumination; The main crest value wave-length coverage of the blue light that wherein above-mentioned blue light wafer produces is between 461nm to 480nm.

Embodiment of the present disclosure provides a kind of lighting device, comprising: light source module, and transmitting light beam, wherein above-mentioned light source module, comprises blue light wafer, in order to produce blue light, and the main crest value wave-length coverage of above-mentioned blue light is between 461nm to 480nm.

Embodiment of the present disclosure provides a kind of light source module, in order to launch light beam, comprising: blue light wafer, in order to produce blue light, wherein the main crest value wave-length coverage of above-mentioned blue light is between 461nm to 480nm.

For above-mentioned feature and advantage of the present disclosure can be become apparent, special embodiment below, and coordinate accompanying drawing to be described in detail below.

Brief description of the drawings

Fig. 1 shows the corresponding curve of light source and physiological stimulation.

Fig. 2 A is the schematic diagram of the light supply apparatus in embodiment of the present disclosure.

Fig. 2 B changes according to the one of the light supply apparatus in Fig. 2 A embodiment.

Fig. 2 C is the relative light intensity of light and the spectrum schematic diagram of optical wavelength sending according to the light supply apparatus in Fig. 2 B embodiment.

Fig. 2 D shows light supply apparatus in Fig. 2 B embodiment and has in the different periods sequential chart of different light illumination modes.

Fig. 2 E is the calcspar according to light supply apparatus in Fig. 2 A.

The schematic diagram of the chromaticity coordinates type of the defined same colour temperature of Tu3Shi ANSI.

Fig. 4 A is the schematic diagram of the light supply apparatus in another embodiment of the present disclosure.

Fig. 4 B shows the curve of spectrum of the first light in Fig. 4 A embodiment.

Fig. 4 C shows the curve of spectrum of the second light in Fig. 4 A embodiment.

Fig. 4 D shows light supply apparatus in Fig. 4 A embodiment and has in the different periods sequential chart of different light illumination modes.

Fig. 5 A is the schematic diagram of the light supply apparatus in another embodiment of the present disclosure.

Fig. 5 B shows the curve of spectrum of the first light in Fig. 5 A embodiment.

Fig. 5 C shows the curve of spectrum of the second light in Fig. 5 A embodiment.

Fig. 5 D shows light supply apparatus in Fig. 5 A embodiment and has in the different periods sequential chart of different light illumination modes.

Fig. 6 A is the schematic diagram of the light supply apparatus in an embodiment more of the present disclosure.

Fig. 6 B shows the curve of spectrum of the light that light supply apparatus 500 provides respectively under each colour temperature condition to Fig. 6 I.

Fig. 6 J shows light supply apparatus in Fig. 6 A embodiment and has in the different periods sequential chart of different light illumination modes.

Fig. 7 is the schematic diagram of the lighting device of first embodiment of the present disclosure.

Fig. 8 is the schematic diagram of the first light source module of first embodiment of the present disclosure.

Fig. 9 is the schematic diagram of another example of the first light source module of the present disclosure.

Figure 10 is the schematic diagram of the lighting device of second embodiment of the present disclosure.

Figure 11 is the schematic diagram of the lighting device of third embodiment of the present disclosure.

Figure 12 is the schematic diagram of the lighting device of fourth embodiment of the present disclosure.

Embodiment

(first implements kenel)

Fig. 2 A is the schematic diagram of the light supply apparatus in embodiment of the present disclosure, Fig. 2 B changes according to the one of the light supply apparatus in Fig. 2 A embodiment, Fig. 2 C is the relative light intensity of light and the spectrum schematic diagram of optical wavelength sending according to the light supply apparatus in Fig. 2 B embodiment, please refer to Fig. 2 A to Fig. 2 C, in the present embodiment, light supply apparatus 100 comprises light emitting module 110 and control unit 120.Light emitting module 110 provides light B.In the present embodiment, the light that the meaning of light B representative is sent for light emitting module 110, can have dispersion angle, but not is defined in specific direction of transfer.Control unit 120 is the first light L1 or the second light L2 in order to the light B that switches light emitting module 110 and send.Wherein, the physiological stimulation value of the second light L2 (circadian stimulus/photometry, CS/P) is less than the physiological stimulation value of the first light L1, and the second light L2 is identical in fact with the colour temperature of the first light L1.By this, light supply apparatus 100 can be under the situation that is difficult for allowing user perceive photochromic temperature variation, there is the first light L1 of high physiological stimulation or the second light L2 of low physiological stimulation according to practical service environment, time and object to select to provide, to maintain the natural physiological period of user and enough light sources are provided simultaneously.

Specifically, in the present embodiment, physiological stimulation value (CS/P) is defined as follows shown in formula:

$\mathrm{CS}=\underset{\mathrm{vis}}{\&Integral;}\mathrm{CS}\left(\mathrm{\&lambda;}\right)\&CenterDot;{\mathrm{<figure-callout\; id="0"\; label="P"\; filenames="HDA0000447950980000031.png,HDA0000447950980000071.png"\; state="\{\{state\}\}">P</figure-callout>}}_{0\mathrm{\&lambda;}}\&CenterDot;\mathrm{d\&lambda;}$

$P=\underset{\mathrm{vis}}{\&Integral;}P\left(\mathrm{\&lambda;}\right)\&CenterDot;{\mathrm{<figure-callout\; id="0"\; label="P"\; filenames="HDA0000447950980000031.png,HDA0000447950980000071.png"\; state="\{\{state\}\}">P</figure-callout>}}_{0\mathrm{\&lambda;}}\&CenterDot;\mathrm{d\&lambda;}$

$\mathrm{CS}/P=\frac{\underset{\mathrm{vis}}{\&Integral;}\mathrm{CS}\left(\mathrm{\&lambda;}\right)\&CenterDot;{\mathrm{<figure-callout\; id="0"\; label="P"\; filenames="HDA0000447950980000031.png,HDA0000447950980000071.png"\; state="\{\{state\}\}">P</figure-callout>}}_{0\mathrm{\&lambda;}}\&CenterDot;\mathrm{d\&lambda;}}{\underset{\mathrm{vis}}{\&Integral;}P\left(\mathrm{\&lambda;}\right)\&CenterDot;{\mathrm{<figure-callout\; id="0"\; label="P"\; filenames="HDA0000447950980000031.png,HDA0000447950980000071.png"\; state="\{\{state\}\}">P</figure-callout>}}_{0\mathrm{\&lambda;}}\&CenterDot;\mathrm{d\&lambda;}}$

Wherein, CS (λ) represents the mankind's physiology function, and P (λ) represents the mankind's photopic vision function, and P0 λ represents the spectrum after mixed light completes, and CS represent mixed light complete after the physiological stimulation value of spectrum, P represent mixed light complete after the intensity level of spectrum.Wherein, having about photopic vision function P (λ) is the definition according to Commission Internationale De L'Eclairage (Commission internationale de l' é clairage, CIE).And the Action spectrum (1997) that the mankind's physiology function CS (λ) can propose with reference to Professor Brainard, as shown in Figure 1, the physiology function that the non-vision physiological function of human body (2005) that Mark Rea proposes and German pre-standard DIN V propose, and light supply apparatus of the present disclosure 100 is applicable to various physiology functions.And, the schematic diagram of the chromaticity coordinates type of the defined same colour temperature of Tu3Shi ANSI (American national standard institute, ANSI), please refer to Fig. 3, in the present embodiment, be the definition according to ANSI with the definition of colour temperature.In other words,, according to the light source of the same colour temperature of this standard design, the color distortion of human eye is difficult for discovering.It is as follows that the detailed coordinate figure of the chromaticity coordinates type of the ANSI's definition wherein, illustrating in Fig. 3 schematic diagram please refer to table 1:

Table 1

Wherein, the data area of table 1 can be scaled the tolerance quadrangle reference color temperature S1 to S8 in Fig. 3.For example, drop on the color temperature coordinate value pair in tolerance quadrangle reference color temperature S1 human eye is very approaching, and the rest may be inferred.More specifically, the tolerance quadrangle in table 1 can further be scaled color temperature value scope as following table 2:

Table 2

Wherein, the data area of table 2 can be scaled the oval reference color temperature e1 to e8 in Fig. 3, furthermore, and these oval reference color temperature e1 to e8 that is MacAdam (David MacAdam) ellipse.For example, drop on each color temperature coordinate value in oval reference color temperature e1 very approaching for human eye, the rest may be inferred.It should be noted that table 1 and the coordinate data in table 2 are that to illustrate colour temperature in fact in the present embodiment identical, actual coordinate data please refer to the latest definition of ANSI, and the disclosure is not as limit.In another embodiment, the identical in fact representative of colour temperature is in same oval reference color temperature.By this, light supply apparatus 100 can be under the situation that is difficult for allowing user perceive photochromic colour temperature variation, to select to provide the light source of different physiological stimulation values, also simultaneously provide enough light source to maintain user's physiological period according to practical service environment, time and object.

Specifically, please refer to Fig. 2 A, control unit 120 can make light emitting module 110 switch between multiple light-emitting modes, these light-emitting modes comprise the first physiological stimulation pattern and the second physiological stimulation pattern, light emitting module 110 comprises multiple luminescence unit D, and these luminescence units D can comprise electroluminescent cell, luminescence generated by light element or its combination.Wherein luminescence unit D comprises at least one the first luminescence unit D1, at least one the second luminescence unit D2 and at least one the 3rd luminescence unit D3, the first luminescence unit D1 provides light W1 for the first time, the second luminescence unit D2 provides light W2 for the second time, and the 3rd luminescence unit D3 provides light W3 for the third time.Wherein, at least one crest value scope of light W1 can be greater than 420nm and be less than 480nm for the first time, and at least one crest value scope of light W2 can be greater than 480nm and be less than 540nm for the second time, and at least one crest value scope of light W3 can be greater than 540nm for the third time.

In the time that control unit 120 makes light emitting module 110 switch to the first physiological stimulation pattern, control unit 120 makes the Part I P1 of these luminescence units D that the first light L1 is provided, wherein the first light L1 can comprise light W1 and for the second time light W2 for the first time, and in the time that control unit 120 makes light emitting module 110 switch to the second physiological stimulation pattern, control unit 120 makes the Part II P2 of these luminescence units D that the second light L2 is provided, wherein the second light L2 can comprise light W1 and for the third time light W3 for the first time, and the first light L1 is identical in fact with the colour temperature of the second light L2, therefore can in the situation that not affecting user's colour temperature sensation, change physiological stimulation value to meet different demands.

In addition, the light supply apparatus 100 that light supply apparatus 100 ' in Fig. 2 B illustrates to Fig. 2 A is similar, wherein in Fig. 2 B, each luminescence unit correspondence provides light crest value scope as Fig. 2 A embodiment declared range, but difference is, the Part I P1 ' of the light supply apparatus 100 ' in Fig. 2 B also can comprise the 3rd luminescence unit D3.

Wherein, under the first physiological stimulation pattern, the first light L1 ' that Part I P1 ' provides can comprise for the first time light W1, light W2 and light W3 for the third time for the second time.And under the second physiological stimulation pattern, the second light L2 ' that Part II P2 ' provides can comprise light W1 and for the third time light W3 for the first time.

Wherein, Fig. 2 B completes frequency spectrum after mixed light as shown in Figure 2 C, because the physiological stimulation value of light W2 is for the second time greater than the physiological stimulation value of light W3 for the third time, therefore the first light L1 ' is though be identical colour temperature 3000K with the second light L2 ', due to its mixed light spectrum difference, therefore physiological stimulation value difference, first its spectrum of light L1 ' is as the mixed light curve of spectrum SH1 in Fig. 2 C, physiological stimulation value CS/P is about 0.43 as calculated afterwards, and its mixed light spectrum of the second light L2 ' is as the curve of spectrum SL1 in Fig. 2 C, its physiological stimulation value CS/P is about 0.27 as calculated afterwards, that is the CS/P that calculates of above formula, wherein the physiological stimulation value of the first light L1 ' be about afterwards as calculated the second light L2 ' physiological stimulation value 159%.By this, can make the second light L2 ' and the physiological stimulation value of the first light L1 ' have more significant difference.And can reach above-mentioned object, the disclosure is not as limit.

Furthermore, control unit 120 can make the light B that light emitting module 110 ' sends the multiple different periods in one day switch on demand the first physiological stimulation pattern (the first light L1 ' is provided) or the second physiological stimulation pattern (the second light L2 ' is provided).Specifically, Fig. 2 D shows light supply apparatus in Fig. 2 B embodiment and has in the different periods sequential chart of different light illumination modes, please refer to Fig. 2 B and Fig. 2 D, for example, light supply apparatus 100 ' can be applicable to restaurant's illumination, can provide colour temperature at operating time (9:00 to 18:00 being illustrated in as Fig. 2 D) is 3000K and the first light L1 ' with higher physiological stimulation value, to improve attendant's alertness and work ethos, also can allow tenant there is visual snugness sense simultaneously.And at night (18:00 to 22:00 being illustrated in as Fig. 2 D), light emitting module 110 ' in light supply apparatus 100 ' can be switched to that colour temperature is similarly 3000K but the second light L2 ' with lower physiological stimulation value, can reduce attendant to night shift and tenant's physiological stimulation colour temperature in the situation that not affecting illumination, to avoid affecting, melatonin is secreted and the health that affects attendant and tenant.It should be noted that sequential in Fig. 2 D is only for illustrating the present embodiment, can change to some extent according to enforcement demand in other embodiments, the disclosure is not as limit.

Further, Fig. 2 E is the calcspar according to light supply apparatus in Fig. 2 A, please refer to Fig. 2 E, in the present embodiment, light supply apparatus 100 also can comprise User's Interface 130, and the signal of the operation corresponding to user UR that control unit 120 is inputted according to User's Interface 130 determines the current residing light illumination mode of light supply apparatus 100.Specifically, control unit 120 is for example microprocessor, and can make light emitting module 110 switch to respectively different light illumination modes in multiple different times according to time management data DT, and wherein time management data DT is relevant to biological physiological clock.For example, time management data DT can be as pattern data switching time in the sequential chart in Fig. 2 D, and so the disclosure is not as limit.More specifically, light supply apparatus 100 also can comprise data writing system DR, time management data DT can be connected and be received and be stored in memory cell SV with control unit 120 by data writing system DR, and control unit 120 can be by being written into time management data DT to control control unit 120 and to make the light source driver module DM of light emitting module 110 drive Part I P1 or Part II P2, to reach the effect described in Fig. 2 A embodiment from memory cell SV.On the other hand, light supply apparatus 100 also can comprise connecting interface 140, and the time management data DT from data writing system DR is passed to control unit 120 by connecting interface 140, and wherein connecting interface 140 is wired connection interface or wireless connections interface.For example, connecting interface 140 is for example hand switch or remote controller, and user UR can utilize hand switch or remote controller to choose or change the light illumination mode of light supply apparatus 100.And on the other hand, light supply apparatus 100 also can be according to the content of time management data DT, automatically choose according to the time or change light illumination mode, with the demand of the person of being used in conjunction with UR.

But the light emitting module 110 of the light supply apparatus 100 in Fig. 2 A embodiment can provide the first light L1 and the second light L2 with identical colour temperature and different physiological stimulation values.But in other embodiments, also can provide the light with identical or different colour temperature and different physiological stimulation values.

For example, Fig. 4 A is the schematic diagram of the light supply apparatus in another embodiment of the present disclosure, similar to Fig. 2 A embodiment, and light supply apparatus 300 comprises the first luminescence unit D1, the second luminescence unit D2, and the 3rd luminescence unit D3 can comprise D31 and D32.

Wherein the Part I P13 of light supply apparatus 300 comprises the first luminescence unit D1, the second luminescence unit D2, the 3rd luminescence unit D31, its correspondence produces for the first time light W1, for the second time light W2 and light W3 for the third time, wherein, for the second time light W2 can by fluorophor by light W1 for the first time excite produce (the second luminescence unit D2 can be fluorophor), light W3 is produced by light-emitting diode for the third time.The luminous Part II P23 of light supply apparatus 300 comprises the first luminescence unit D1 and the 3rd luminescence unit D32, and its correspondence produces light W1 and for the third time light W3 for the first time.Wherein, light W1 can be the light being produced by light-emitting diode for the first time, for the third time light W3 can by fluorophor by light W1 for the first time excite produce (the 3rd luminescence unit D32 can be fluorophor).Wherein, at least one crest value scope of light W1 is greater than 420nm and is less than 480nm for the first time, and at least one crest value scope of light W2 is greater than 480nm and is less than 540nm for the second time, and at least one crest value scope of light W3 is greater than 540nm for the third time.

In Fig. 4 A embodiment, difference is in the light supply apparatus 300 in Fig. 4 A, and control module 320 is switched the light B3 that light emitting module 310 sends between the first light L13 and the second light L23, and the first light L13 is not identical with the colour temperature of the second light L23.

Fig. 4 B shows the curve of spectrum of the first light L13 in Fig. 4 A embodiment, and Fig. 4 C shows the curve of spectrum of the second light L23 in Fig. 4 A embodiment.In the present embodiment, Fig. 4 B is taking 6500k colour temperature as example, and Fig. 4 C is taking 3000k colour temperature as example.Calculate and push away to such an extent that the physiological stimulation value of the first light L13 of providing of the light emitting module 310 of light supply apparatus 300 is about 0.94 via above-mentioned each formula by the curve of spectrum in Fig. 4 B and Fig. 4 C, and the physiological stimulation value of the second light L23 is about 0.27, wherein the physiological stimulation value of the first light L13 is about 3.48 times of physiological stimulation value of the second light L23, and the physiological stimulation value of the first light L13 has more the more than 5% of physiological stimulation value of the second light L23 than the physiological stimulation value of the second light L23.

Fig. 4 D shows light supply apparatus in Fig. 4 A embodiment and has in the different periods sequential chart of different light illumination modes.By this, light supply apparatus 300 can be applicable to illumination at home, as Fig. 4 D illustrates, the light emitting module 310 of light supply apparatus 300 in the daytime the period (for example 9:00 to 18:00) provide have high physiological stimulation value and high color temperature (6500k) light source so that people feel salubrious and can improve spirit, for example, provide the light source with low physiological stimulation value and low colour temperature (3000k) so that people has cosy sensation in the period at night (18:00 to 22:00).Wherein, the curve of spectrum of above-mentioned physiological stimulation numerical value and Fig. 4 B and Fig. 4 C, in other embodiments also can be different according to actual demand only for the present embodiment is described, the disclosure is not as limit.

Fig. 5 A is the schematic diagram of the light supply apparatus in another embodiment of the present disclosure, similar to Fig. 2 A embodiment, but in the present embodiment, light emitting module 410 also comprises at least one the 4th luminescence unit D4.Wherein, the first luminescence unit D1 provides light W1 for the first time, and the second luminescence unit D2 provides light W2 for the second time, and the 3rd luminescence unit D3 provides light W3 for the third time, and the 4th luminescence unit D4 provides light W4 the 4th time.And as Fig. 5 A illustrates, Part I P14 can comprise the first luminescence unit D1, the second luminescence unit D2 and the 4th luminescence unit D4, and Part II P24 can comprise the first luminescence unit D1, the 3rd luminescence unit D3 and the 4th luminescence unit D4.In the time that control unit 420 makes light emitting module 410 switch to the first physiological stimulation pattern, the first luminescence unit D1 sends light W1 for the first time, the second luminescence unit D2 sends light W2 for the second time, and the 4th luminescence unit D4 send light W4 the 4th time, in the time that control unit 420 makes light emitting module 410 switch to the second physiological stimulation pattern, the first luminescence unit D1 sends light W1 for the first time, the 3rd luminescence unit D3 sends light W3 for the third time, and the 4th luminescence unit D4 sends light W4 the 4th time, wherein the physiological stimulation value of light W1 is greater than the physiological stimulation value of light W2 for the second time for the first time, and the physiological stimulation value of light W2 is greater than the physiological stimulation value of light W3 for the third time for the second time.In brief, under the first physiological stimulation pattern, the first light L14 that the light emitting module 410 of light supply apparatus 400 provides can comprise light W1, for the second time light W2 and the 4th light W4 for the first time.And under the second physiological stimulation pattern, the second light L24 that the light emitting module 410 of light supply apparatus 400 provides can comprise light W1, for the third time light W3 and the 4th light W4 for the first time.Can there is similar effect to the light supply apparatus 100 of embodiment in Fig. 2 A by this.

In other words, the light emitting module 410 of light supply apparatus 400 can comprise the first luminescence unit D1, the second luminescence unit D2, the 3rd luminescence unit D3 and the 4th luminescence unit D4.Wherein, the at least the first luminescence unit D1, the second luminescence unit D2 and the 4th luminescence unit D4 can form the first light source (being Part I P14) and send the first light L14, and the first luminescence unit D1, the 3rd luminescence unit D3 and the 4th luminescence unit D4 can form secondary light source (being Part II P24) and send the second light L24.Wherein, the first light source is identical in fact from secondary light source colour temperature and have different physiological stimulation values.

In the present embodiment, the first luminescence unit D1 in Fig. 5 A can be light-emitting diode, for the second time light W2 can by the first fluorophor by light W1 for the first time excite produce, and for the third time light W3 can by the second fluorophor by light W1 for the first time excite produce, in other words, in the present embodiment, the second luminescence unit D2 and the 3rd luminescence unit D3 can be luminescence generated by light (as fluorescence) material, and it can be subject to for the first time light W1 and excites and produce the W2 of light for the second time of different crest value scopes and light W3 for the third time.In addition, in the present embodiment, the 4th luminescence unit D4 is for example light-emitting diode, but in other embodiments, the 4th luminescence unit D4 or can be the embedded photoluminescent material (as fluorophor) that is subject to optical excitation and produce the 4th light W4, the disclosure is not as limit.In another embodiment, the first luminescence unit D1, the second luminescence unit D2, the 3rd luminescence unit D3 and the 4th luminescence unit D4 can be the combination of light-emitting diode or light-emitting diode and the fluorophor with different crest value scopes.

Fig. 5 B shows the curve of spectrum of the first light L14 in Fig. 5 A embodiment, and Fig. 5 C shows the curve of spectrum of the second light L24 in Fig. 5 A embodiment, Fig. 5 D shows light supply apparatus in Fig. 5 A embodiment and has in the different periods sequential chart of different light illumination modes, specifically, at least one crest value scope of light W1 is greater than 420nm and is less than 480nm for the first time, at least one crest value scope of light W2 is greater than 480nm and is less than 540nm for the second time, at least one crest value scope of light W3 is greater than 540nm and is less than 590nm for the third time, and at least one crest value scope of the 4th light W4 is greater than 590nm and is less than 680nm.Wherein, when light supply apparatus 400 is during in the first physiological stimulation pattern, the spectrum of the first light L14 that light emitting module 410 provides is as the mixed light curve of spectrum in Fig. 5 B.When light supply apparatus 400 is during in the second physiological stimulation pattern, the mixed light spectrum of the second light L24 that light emitting module 410 provides is as the curve of spectrum in Fig. 5 C.In the present embodiment, Fig. 5 B and Fig. 5 C are taking 6500K colour temperature as example, and by the curve of spectrum in Fig. 5 B and Fig. 5 C, the physiological stimulation value that can be derived from the first light L14 of light supply apparatus 400 is about 0.94, and the physiological stimulation value of the second light L24 is about 0.79.By this, light supply apparatus 400 can be applicable to operating illumination (as hospital or industrial light), as Fig. 5 D illustrates, period (for example 9:00 to 18:00) provides the light source with high physiological stimulation value and high color temperature also can improve spirit so that staff feels salubrious to the light emitting module 410 of light supply apparatus 400 in the daytime, the light source that has low physiological stimulation value but still maintain high color temperature for example, was provided in the period at night (18:00 to 22:00), to reduce the physiological stimulation to the staff in work in night, to avoid affecting staff's health.Wherein, the curve of spectrum of above-mentioned physiological stimulation numerical value and Fig. 5 B and Fig. 5 C, in other embodiments also can be different according to actual demand only for the present embodiment is described, the disclosure is not as limit.It should be noted that, light supply apparatus 400 in Fig. 5 A also can be as the light supply apparatus 300 in Fig. 4 A embodiment, by adjusting for the first time light W1, the ratio between light W2, for the third time light W3 and the 4th light W4 to be to provide different-colour and different physiological stimulation value difference different the first light L14 and the second light L24 reaching more than 5% for the second time, relevant describes in detail and can, with reference to Fig. 2 A and Fig. 4 A embodiment, not repeat them here.

Fig. 6 A is the schematic diagram of the light supply apparatus in an embodiment more of the present disclosure, Fig. 6 B shows the curve of spectrum of the light that light supply apparatus 500 provides respectively under each colour temperature condition to Fig. 6 I, similar to the embodiment of Fig. 5 A, and there is the W1 of light for the first time of same wave peak value scope, light W2, light W3, the 4th light W4 for the third time for the second time, but difference is, in the present embodiment, the light emitting module 510 of the light supply apparatus 500 of Fig. 6 A can provide the more groups of light sources with the different-colour of height physiological stimulation value under these light illumination modes.For example, in the present embodiment, when the first luminescence unit D11 included in the light emitting module 510 of light supply apparatus 500 and the first luminescence unit D12 provide light W1 for the first time, when the second luminescence unit D2 provides for the second time light W2 and the 4th luminescence unit D4 that the 4th light W4 is provided, the light emitting module 510 of light supply apparatus 500 can be by adjusting light W1 for the first time, the ratio of light W2 and the 4th light W4 for the second time, for example, to provide the first light L15 (6500K with higher physiological stimulation value according to user demand respectively, CS/P value 0.82), the 3rd light L35 (for example 5000K, CS/P value 0.67), the 5th light L55 (for example 4000K, CS/P value 0.54) and the 7th light L75 (for example 3000K, CS/P value 0.39).On the other hand, when the first luminescence unit D11 in the light emitting module 510 of light supply apparatus 500 and the first luminescence unit D13 provide light W1 for the first time, when the 3rd luminescence unit D3 provides for the third time light W3 and the 4th luminescence unit D4 that the 4th light W4 is provided, the light emitting module 510 of light supply apparatus 500 can be by adjusting light W1 for the first time, the ratio of light W3 and the 4th light W4 for the third time, to provide the second light L25 (6500K with lower physiological stimulation value according to user demand respectively, CS/P value 0.72), the 4th light L45 (5000K, CS/P value 0.57), the 6th light L65 (4000K, CS/P value 0.45) and the 8th light L85 (3000K, CS/P value 0.30).Therefore, the light emitting module 510 of light supply apparatus 500 can provide the light source of more groups of colour temperatures compared to the light emitting module 110 and 110 ' of the light supply apparatus 100 of Fig. 2 A and Fig. 2 C and 100 ', can meet by this various user demands, and have good application potential.

Specifically, in the present embodiment, light supply apparatus 500 can comprise the first physiological stimulation pattern, the second physiological stimulation pattern, the 3rd physiology stimulus modality, the 4th physiological stimulation pattern, the 5th physiological stimulation pattern, the 6th physiological stimulation pattern, the 7th physiological stimulation pattern and the 8th physiological stimulation pattern.And, control unit 520 make light emitting module 500 respectively at the light sending under these physiological stimulation patterns at the first light L15 (curve of spectrum is as Fig. 6 B), the second light L25 (curve of spectrum is as Fig. 6 C), the 3rd light L35 (curve of spectrum is as Fig. 6 D), the 4th light L45 (curve of spectrum is as Fig. 6 E), the 5th light L55 (curve of spectrum is as Fig. 6 F), the 6th light 65 (curve of spectrum is as Fig. 6 G), between the 7th light L75 (curve of spectrum is as Fig. 6 H) and the 8th light L85 (curve of spectrum is as Fig. 6 I), switch, and then can provide more multiple sets of light sources.

More specifically, the physiological stimulation value of the second light L25 is less than the physiological stimulation value of the first light L15, and the second light L25 is identical in fact with the colour temperature of the first light L15.The physiological stimulation value of the 4th light L45 is less than the physiological stimulation value of the 3rd light L35, and the 4th light L45 is identical in fact with the colour temperature of the 3rd light L35.The physiological stimulation value of the 6th light L65 is less than the physiological stimulation value of the 5th light L55, and the 6th light L65 is identical in fact with the colour temperature of the 5th light L55.The physiological stimulation value of the 8th light L85 is less than the physiological stimulation value of the 7th light L75, and the 8th light L85 is identical in fact with the colour temperature of the 7th light L75.And the colour temperature colour temperature not identical in fact and the second light L25, the 4th light L45, the 6th light L65 and the 8th light L85 of the first light L15, the 3rd light L35, the 5th light L55 and the 7th light L75 is not identical in fact.In other words, the light emitting module 510 of light supply apparatus 500 can be by adjusting for the first time light W1, the ratio of light W2, for the third time light W3 and the 4th light W4 for the second time, and the light of more groups of colour temperatures can be provided, and each group can be switched with the light of colour temperature between high physiological stimulation value and low physiological stimulation value.

Furthermore, in the present embodiment, the light emitting module 510 of light supply apparatus 500 can comprise the first luminescence unit D11, D12 and D13, the second luminescence unit D2, the 3rd luminescence unit D3 and the 4th luminescence unit D4.Wherein, the first luminescence unit D11 and D12, the second luminescence unit D2 and the 4th luminescence unit D4 can form the first light source (being Part I P1) and respectively at sending the first light L15, the 3rd light L35, the 5th light L55 or the 7th light L75 under each physiological stimulation pattern.On the other hand, the first luminescence unit D11 and D13, the 3rd luminescence unit D3 and the 4th luminescence unit D4 can form secondary light source (being Part II P2) and respectively at sending the second light L25, the 4th light L45, the 6th light L65 or the 8th light L85 under each physiological stimulation pattern.

By this, light supply apparatus 500 can be by changing for the first time light W1, light W2, the light mixng proportion of light W2, for the third time light W3 and the 4th light W4 for the second time for the second time, and can, under 6500K colour temperature condition, between the first light L15 of the high physiological stimulation value of tool and the second light L25 of the low physiological stimulation value of tool, switch.Also can, under 5000K colour temperature condition, between the 3rd light L35 of the high physiological stimulation value of tool and the 4th light L45 of the low physiological stimulation value of tool, switch.Also can, under 4000K colour temperature condition, between the 5th light L55 of the high physiological stimulation value of tool and the 6th light L65 of the low physiological stimulation value of tool, switch.And also can, under 3000K colour temperature condition, between the 7th light L75 of the high physiological stimulation value of tool and the 8th light L85 of the low physiological stimulation value of tool, switch.So, light supply apparatus 500 can have larger application potential.

In addition, furthermore, the first above-mentioned light L15 has the different physiological stimulation values of same colour temperature from the second light L25, the 3rd light L35 has the different physiological stimulation values of same colour temperature from the 4th light L45, the 5th light L55 has the different physiological stimulation values of same colour temperature from the 6th light L65, and the 7th light L75 has the different physiological stimulation values of same colour temperature from the 8th light L85.But in other embodiments, the physiological stimulation value that the first light L15 and the second light L25 also can be different-colour and the first light L15 has more the more than 5% of physiological stimulation value of the second light L25 than the physiological stimulation value of the second light L25.The physiological stimulation value that the 3rd light L35 and the 4th light L45 also can be different-colour and the 3rd light L35 has more the more than 5% of physiological stimulation value of the 4th light L45 than the physiological stimulation value of the 4th light L45.The physiological stimulation value that the 5th light L55 and the 6th light L65 also can be different-colour and the 5th light L55 has more the more than 5% of physiological stimulation value of the 6th light L65 than the physiological stimulation value of the 6th light L65.The physiological stimulation value that the 7th light L75 and the 8th light L85 also can be comparable the 8th light L85 of physiological stimulation value of different-colour and the 7th light L75 has more the more than 5% of physiological stimulation value of the 8th light L85.By this, also can have to the light supply apparatus 500 in Fig. 6 A and there is similar effect.

Fig. 6 J shows light supply apparatus in Fig. 6 A embodiment and has in the different periods sequential chart of different light illumination modes, please refer to Fig. 6 J, for example, light supply apparatus 500 can be applicable to office lighting, wherein, the period (as the 8:00 to 11:00 in Fig. 6 J) can switch to the first physiological stimulation pattern so that light emitting module 510 provides high color temperature (6500K) and has the first light L15 of high physiological stimulation value to light supply apparatus 500 in the daytime.And in the lunch break period (11:00 to 13:00), 500 of light supply apparatuses can switch to the second physiological stimulation pattern so that light emitting module 510 provides high color temperature and has the second light L25 of low physiological stimulation value, can reduce the physiological stimulation to the staff in having a rest.Then, light supply apparatus 500 can switch back the first physiological stimulation pattern (13:00 to 16:00) after lunch break finishes to promote operating efficiency the period in the afternoon again.And at next period in night (after the 18:00 in Fig. 6 J), 500 of light supply apparatuses can switch to the 7th physiological stimulation pattern so that light emitting module 510 provides the 7th light L75 of low colour temperature (3000K).And light supply apparatus 500 also can switch to the 8th physiological stimulation pattern so that light emitting module 510 provides low colour temperature (3000K) and has the 8th light L85 of minimum physiological stimulation value at the length of one's sleep (after the 22:00 in Fig. 6 J).In addition, light supply apparatus 500 can provide more kinds of combination of light sources, by this to coordinate application widely.

Light supply apparatus in embodiment of the present disclosure can provide colour temperature identical and light that physiological stimulation value is different by control unit control light emitting module.Light emitting module also can be by multi-group light-emitting unit so that the light of many group colour temperatures to be provided, and each group also can be switched with the light of colour temperature between the light of different physiological stimulation values.In addition, the light supply apparatus in embodiment of the present disclosure also can provide physiological stimulation value difference different more than 5% light by control unit control light emitting module, and these light can have diverse colour temperature, or has the colour temperature of these light of part identical.By this, light supply apparatus can be in response to practical service environment, time and object to select to provide the light source with different physiological stimulation values, to maintain the natural physiological period of user and enough light sources are provided simultaneously.Light supply apparatus of the present disclosure can be in order to the lighting device of illumination or as the back lighting device backlight of display, but not as limit.

In addition, in each embodiment as disclosed above, also can comprise and there is the luminescence unit that at least one crest scope is greater than 461nm and is less than the blue light of 480nm,, light supply apparatus as disclosed above and light emitting module are in the situation that keeping colour temperature, provide the blue light of low blue light harm as composition light, by this, can be in colour temperature almost in immovable situation, adjust according to demand the physiological stimulation value of light, and the light providing has low blue light harm, under using even long-time, also can not cause excessive injury to retina.

(second implements kenel)

The of the present disclosure second light source module and lighting device of implementing kenel adopted main crest value wave-length coverage to be positioned at the blue light wafer between 461nm to 480nm; reduce the wavelength between the larger 445nm to 460nm of retina harm, can protect user's eyes.Optionally utilize in addition secondary light source module increase the brightness of environment and strengthen the physiological stimulation factor, to improve user's operating efficiency.

Fig. 1 is the schematic diagram of the lighting device 1 of first embodiment of the present disclosure.Lighting device 1 comprises the first light source module 10, secondary light source module 20 and the 3rd light source module 30.The first light source module 10 is in order to launch the first light beam L1 ' in the first field of illumination Z1, and secondary light source module 20 is in order to launch the second light beam L2 ' in the second field of illumination Z2, and the 3rd light source module 30 is in order to launch the 3rd light beam L3 ' in the 3rd field of illumination Z3.Above-mentioned the first field of illumination Z1 is defined as the region of user's activity, and above-mentioned the second field of illumination Z2 and the 3rd field of illumination Z3 are positioned at a wall W1 ' and/or a ceiling W2 '.The first field of illumination Z1 can be desktop S1 ' in the present embodiment, and the second field of illumination Z2 is positioned at wall W1 ', and the 3rd field of illumination Z3 is positioned at ceiling W2 '.

Above-mentioned the first light beam L1 ' has primary optic axis AX1 and the first beam angle A1, and the first light beam L1 ' advances along primary optic axis AX1.Angle between above-mentioned primary optic axis AX1 and a vertical direction D1 ' is 0 degree to 45 degree, and the first beam angle A1 is between 30 degree to 80 degree or is less than 45 degree.In the present embodiment, above-mentioned angle can be 0 degree, and the first beam angle A1 can be 45 degree.

Above-mentioned the second light beam L2 ' has the second optical axis AX2 and the second beam angle A2, and the second light beam L2 ' advances along the second optical axis AX2.Angle between above-mentioned the second optical axis AX2 and above-mentioned vertical direction D1 ' is 45 degree to 90 degree, and the second beam angle A2 is between 60 degree to 130 degree.Above-mentioned angle can be 90 degree in the present embodiment, and the second beam angle A2 can be 80 degree.

Above-mentioned the 3rd light beam L3 ' has the 3rd optical axis AX3 and the 3rd beam angle A3, and the 3rd light beam L3 ' advances along the 3rd optical axis AX3.Angle between above-mentioned the 3rd optical axis AX3 and vertical direction D1 ' is 0 degree to 60 degree, and the 3rd beam angle A3 is that between 70 degree to 170 degree, above-mentioned angle can be 0 degree in the present embodiment, and the 3rd beam angle A3 can be 100 degree.

Above-mentioned the first light beam L1 ', the second light beam L2 ' and the 3rd light beam L3 ' can be white light, and colour temperature (CCT) can be 2500K to 3500K, 4000K to 5000K or 6000K to 7000K.

Above-mentioned the first light source module 10 can comprise multiple blue light wafers 11.Can be light-emitting diode in the wafer described in the disclosure.It is blue light-emitting diode that blue light wafer 11 can be gallium nitride (GaN), the substrate adopting in its brilliant technique of heap of stone can be sapphire (Sapphire), carborundum (SiC) or silicon etc., therefore blue light wafer 11 can produce a blue light, and the main crest value wave-length coverage of blue light is between 461nm to 480nm, and main crest value wavelength is about 463nm in the present embodiment.

Moreover light source module of the present disclosure can be made up of at the phosphor body that other photochromic wafers or other have wavelength conversion (wavelengthconverter) function of arranging in pairs or groups of the blue light wafer 11 between 461nm to 480nm above-mentioned main crest value wave-length coverage.For example, can arrange in pairs or groups gold-tinted wafer, collocation green wafer and red wafer or arrange in pairs or groups green wafer, cyan wafer and red wafer of blue light wafer.In addition, blue light wafer also can arrange in pairs or groups gold-tinted phosphor body, collocation gold-tinted phosphor body and ruddiness phosphor body, collocation green wafer is with ruddiness phosphor body, green glow phosphor body and the red wafer of arranging in pairs or groups or arrange in pairs or groups the various combinations such as green wafer, gold-tinted phosphor body and ruddiness phosphor body, do not limited.Below for above-mentioned several combinations as an example.

Fig. 2 is the schematic diagram of the first light source module 10 of first embodiment of the present disclosure.In the present embodiment, the exiting surface of each blue light wafer 11 is provided with a fluorescent layer 12.Fluorescent layer can comprise the green glow phosphor body of approximately 1 to 20 percentage by weights and the ruddiness phosphor body of 1 to 20 percentage by weight, and green glow phosphor body can be silicate phosphor body (SilicatePhosphor) or aluminate-series phosphor body (AluminatePhosphor), ruddiness phosphor body can be nitride based phosphor body (NitridePhosphor) or sulfide-based phosphor body (SulfidePhosphor).In the time that blue light passes through fluorescent layer 12, above-mentioned part blue light is formed green glow and ruddiness by fluorescent layer 12, via the white light that is mixed to form of above-mentioned blue light, green glow and ruddiness, i.e. and the first light beam L1 '.

By above-mentioned main crest value wave-length coverage at the blue light wafer 11 between 461nm to 480nm and fluorescent layer 12, make effective blue light Hazard factor (bluelighthazardactionfactor) of the unit light energy of the first light beam L1 ' be about 0.133, meet the associated safety specification of blue light.Effectively blue light Hazard factor is lower is representing, the degree that retina is subject to blue light light evil is lower.

The main crest value wave-length coverage of the blue light wafer 11 therefore adopting due to the present embodiment is between 461nm to 480nm; therefore can avoid the retina blue light of human body to endanger larger main crest value wave-length coverage at the blue light between 445nm to 460nm, and then reach effect of protection user eyes.

Above-mentioned effective blue light Hazard factor (BLH/W) is defined as effective blue light harm value (effectivebluelighthazardradiationquantities of every watt of (W) light radiation, BLH), wherein effectively blue light harm value can be calculated via following formula.

BLH＝∫X _eλ·B(λ)dλ

Xe λ in above-mentioned formula is spectral power distribution (SpectralPowerDistribution), and B (λ) is for effectively indigo plant evil weighting function and λ are wavelength.

In another example, fluorescent layer comprises the gold-tinted phosphor body of 1 to 20 percentage by weight and the ruddiness phosphor body of 1 to 20 percentage by weight, it is phosphor body, silicate phosphor body or aluminate-series phosphor body etc. that gold-tinted phosphor body can be YAG, and ruddiness phosphor body can be nitride based phosphor body (NitridePhosphor) or sulfide-based phosphor body (SulfidePhosphor).In the time that blue light passes through fluorescent layer 12, above-mentioned part blue light is formed gold-tinted and ruddiness by fluorescent layer 12, via the white light that is mixed to form of above-mentioned blue light, gold-tinted and ruddiness, i.e. and the first light beam L1 '.

Under the irradiation of the white light forming via above-mentioned blue light wafer 11 and fluorescent layer 12, user's eyes are compared with indefatigability and produce injury.

Fig. 3 is the schematic diagram of another example of the first light source module 10 of the present disclosure.In this example, the first light source module 10 also comprises multiple green light LED wafers 13.It is green light LED that green light LED wafer 13 can be gallium nitride (GaN), and in order to produce a green glow, the substrate adopting in its brilliant technique of heap of stone can be sapphire (Sapphire), carborundum (SiC) or silicon substrate etc.Fluorescent layer 12 comprises one 1 to 20 percentage by weight ruddiness phosphor bodies.Ruddiness phosphor body can be nitride based phosphor body or sulfide-based phosphor body.In the time that blue light passes through fluorescent layer 12, above-mentioned part blue light is converted to ruddiness by fluorescent layer 12, and after mixing via above-mentioned ruddiness, blue light and green glow, form a white light, i.e. the first light beam L1 '.

In the present embodiment, above-mentioned green glow preferably wave-length coverage is 500nm to 540nm, and the wave-length coverage of above-mentioned ruddiness is 620nm to 680nm.Under the irradiation of the white light forming via above-mentioned blue light wafer 11, fluorescent layer 12 and green wafer 13, user's eyes are compared with indefatigability and produce injury.

Above-mentioned secondary light source module 20 can comprise multiple blue light wafers 21, and the exiting surface of each blue light wafer 21 is provided with a fluorescent layer 22.Above-mentioned the 3rd light source module 30 can comprise multiple blue light wafers 31, and the exiting surface of each blue light wafer 31 is provided with a fluorescent layer 32.The thin portion structure of secondary light source module 20 and the 3rd light source module 30 can be identical or similar, please refer to the explanation about the first light source module 10 in above-mentioned disclosed embodiment.The blue light wafer 21,31 of secondary light source module 20 and the 3rd light source module 30 and the fluorescent layer 22,32 arranging thereon can be same or similar with above-mentioned disclosed the first light source module 10, and in secondary light source module 20 and the 3rd light source module 30, above-mentioned green wafer 13 also can be set.

In the present embodiment, the main crest value wave-length coverage of the blue light of the blue light wafer 21,31 in secondary light source module 20 and the 3rd light source module 30 can be between 461nm to 480nm, also can, between 420nm to 460nm, for example, can be 455nm, 447nm or 441nm.That is, the main crest value of the blue light of the blue light wafer 21,31 in above-mentioned secondary light source module 20 and the 3rd light source module 30 is less than the main crest value of the blue light of the blue light wafer 11 in the first light source module 10, can increase by this luminous efficiency (LuminousEfficacy) and the environment blue light of the white light LEDs in secondary light source module 20 and secondary light source module 20.

Effective blue light Hazard factor of above-mentioned the first light source module 10 can be less than or equal to above-mentioned secondary light source module 20 and the 3rd light source module 30 effective blue light Hazard factor 10%, 20% or 30%, can be in the present embodiment 10%.In addition, the more above-mentioned secondary light source module 20 of the physiological stimulation factor of above-mentioned the first light source module 10 and the physiological stimulation factor of the 3rd light source module 30 are large 10%, 20% or 30%, or the first light source module, secondary light source module, the 3rd light source module all have the identical physiological stimulation factor.In the present embodiment, the physiological stimulation factor of the first light source module can be compared with the physiological stimulation factor about 10% of secondary light source module and the 3rd light source module.The physiological stimulation factor is higher represents that human body is subject to after the stimulation of blue light, can degree of stepping up vigilance (alertness), and then increase study or operating efficiency.

The physiological stimulation factor (CS/W) is defined as every watt of physiological stimulation value (circadianstimulus) that (W) light radiation is contained, wherein has physiological stimulation value to calculate via following formula.

CS=∫X _eλ·C(λ)dλ

Xe λ in above-mentioned formula is spectral power distribution (SpectralPowerDistribution), and C (λ) is for circadian rhythm action function and λ are wavelength round the clock.

Above-mentioned the second light beam L2 ' and the 3rd light beam L3 ' are that the wall W1 ' or the ceiling W2 ' that expose to surrounding throw light on, and can there is the blue light ingredient of higher rate, to increase the blue light of environment, and by being projected to wall W1 ' or the diffuse reflection of ceiling W2 ' forming section, can expand the region that pattern of retinal ganglion cells receives blue light, increase alertness.In addition, also because of above-mentioned diffuse reflection, the blue light of environment is uniformly distributed in human body retina after spreading, and generally speaking, can reduce the effective blue light harm value for eyes simultaneously.

In addition, the luminous efficiency (lm/W) of above-mentioned secondary light source module 20 and the 3rd light source module 30 can be compared with the luminous efficiency of the first light source module 10 large 10%, 20% or 30%, maybe can there is identical luminous efficiency, can be in the present embodiment 10%, to reach energy-conservation effect.Separately, in published embodiment, the first light source module 10, secondary light source module 20 and the 3rd light source module 30 can optionally be opened or close according to user's demand.

In the present embodiment, the parameter of the first light source module 10, secondary light source module 20 and the 3rd light source module 30 can reference table 1.In the parameter of the 1st group, secondary light source module 10 and the 3rd light source module 20 are closed, the low blue light harm of the first light beam L1 ' tool that the first light source module 10 irradiates downwards.With reference to the parameter of the 2nd group, it can be applicable to daytime, because the second light beam L2 ' and the 3rd light beam L3 ' that expose to metope and ceiling have the higher physiological stimulation factor, and can be by increasing physiological stimulation, raising work and learning efficiency.With reference to the 3rd group of parameter, because the second light beam L2 ' and the 3rd light beam L3 ' have the colour temperature of 6000K to 7000K, it can be applicable in work or study with reduction eye fatigue degree.With reference to the 4th group of parameter, due to the colour temperature that the second light beam L2 ' and the 3rd light beam L3 ' have 4000K to 5000K, can make the state of human body in loosening to set up.With reference to the 5th group of parameter, because the second light beam L2 ' and the 3rd light beam L3 ' have the lower physiological stimulation factor, can be applicable to work at home, reduction is for physiological interference.With reference to the 6th group of parameter, because the reference color temperature of the second light beam L2 ' and the 3rd light beam L3 ' is 2500K to 3000K, it has the minimum physiological stimulation factor, lives in the house that is therefore applied to night, can be in order to loosen health and not affect the secretion of melatonin.With reference to the 7th group of parameter, select secondary light source module 20 and the 3rd light source module 30 with high luminous efficiency can reach energy-conservation effect in order to space illumination.

Therefore,, according to disclosing of this specification, those skilled in the art can manufacture lighting device 1 according to different demands.

Form 1:

Fig. 4 is the schematic diagram of the lighting device 1a of second embodiment of the present disclosure.The Main Differences of the second embodiment and the first embodiment is as follows.Angle between the 3rd optical axis AX3 and the vertical direction D1 ' of the 3rd light source module 30a is 30 degree to 60 degree, and above-mentioned angle is about 45 degree in the present embodiment, can improve by this energy utilization rate of the 3rd light source module 30a.

Fig. 5 is the schematic diagram of the lighting device 1b of third embodiment of the present disclosure.The Main Differences of the 3rd embodiment and the first embodiment is as follows.In the 3rd embodiment, the 3rd light source module 30 is not set.Angle between the second optical axis AX2 and the vertical direction D1 ' of secondary light source module 20b is 35 degree to 70 degree, above-mentioned angle is about 50 degree in the present embodiment, the second light beam L2 ' of secondary light source module 20b irradiates in the second field of illumination Z2 and the 3rd field of illumination Z3, namely irradiate in wall W1 ' and ceiling W2 ' simultaneously, can or not need too bright environment for less space, energy-conservation effect is provided.

The pattern of above-mentioned lighting device is taking at strips or square as example explanation such as the common pendent lamps of the common Grille lamp of office or school, but be not restricted to above-mentioned pattern, the outward appearance of lighting device also can be spherical (as bulb lamp), the shape such as oval, trapezoidal.The schematic diagram of the lighting device 1c that the 6th figure is fourth embodiment of the present disclosure.Lighting device 1c can be a bulb lamp, and it is one spherical to comprise that a load-carrying unit 40, above-mentioned load-carrying unit 40 can be, and can be made by materials such as metal, plastic cement, glass.The first light source module 10c is arranged at the top of the load-carrying unit 40 of lighting device 1c.Secondary light source module 20c and the 3rd light source module 30c are arranged at respectively the sidewall of load-carrying unit 40.The surface of load-carrying unit 40 is a ball shape curved surface, therefore arrange along the surface of load-carrying unit 40 respectively by the first light source module 10c, secondary light source module 20c and the 3rd light source module 30c, can make the first light source module 10c, secondary light source module 20c and the 3rd light source module 30c irradiate respectively different field of illuminations.

In sum, lighting device of the present disclosure has adopted main crest value wave-length coverage to be positioned at the blue light wafer between 461nm to 480nm, has reduced the wavelength between the larger 445nm to 460nm of retina harm, can protect user's eyes.Optionally utilize in addition secondary light source module increase the brightness of environment and strengthen the physiological stimulation factor, to improve user's operating efficiency.

In addition, disclosed lighting device and light source module in of the present disclosure second implements kenel, also can be as disclosed in this case first implement lighting device and light supply apparatus in kenel, control it by a control unit ratio of the each composition light in light beam is provided, thereby the light that colour temperature is identical in fact, physiological stimulation value is different can be provided according to demand.Simultaneously; even if be controlled in identical in fact colour temperature but in the situation of different physiological stimulation values; in the light beam that lighting device in the second enforcement kenel of the present disclosure and light source module provide; owing to having reduced the wavelength between the larger 445nm to 460nm of retina harm; even therefore under long-time use; also can protect user's eyes, and reduce the physiological stimulation to user.In other words, of the present disclosure first implement kenel and second implement kenel can be in conjunction with for the design of optical source wavelength, the function that can reach to reach the first enforcement kenel and the second enforcement kenel simultaneously.

Although the disclosure with embodiment openly as above; so it is not in order to limit the disclosure, and those skilled in the art, not departing from spirit and scope of the present disclosure; when doing a little change and retouching, therefore protection range of the present disclosure is when being as the criterion depending on appended claims confining spectrum.

Claims (15)

1. a light supply apparatus, is characterized in that comprising:

Light emitting module, provides light, and this light at least comprises the first light and the second light; And

Control unit switches the light that this light emitting module sends between this first light and the second light, and wherein the physiological stimulation value of this second light is less than the physiological stimulation value of this first light, and this second light is identical in fact with the colour temperature of this first light.

2. light supply apparatus as claimed in claim 1, wherein this light emitting module comprises at least the first luminescence unit, at least one the second luminescence unit and at least one the 3rd luminescence unit, this first luminescence unit provides light for the first time, this second luminescence unit provides light for the second time, and the 3rd luminescence unit provides light for the third time, wherein this for the first time at least one crest value scope of light be greater than 420nm and be less than 480nm, this for the second time at least one crest value scope of light be greater than 480nm and be less than 540nm, this for the third time at least one crest value scope of light be greater than 540nm.

3. light supply apparatus as claimed in claim 2, this first light at least comprises this light and this light for the second time for the first time; This second light at least comprises this light and this light for the third time for the first time.

4. light supply apparatus as claimed in claim 3, wherein this first light more comprises this light for the third time.

5. light supply apparatus as claimed in claim 2, wherein this light emitting module also comprises at least one the 4th luminescence unit, and the 4th luminescence unit provides light the 4th time, and at least one crest value scope of the 4th light is greater than 590nm and is less than 680nm.

6. light supply apparatus as claimed in claim 5, this first light comprises this light, this light and the 4th light for the second time for the first time; This second light comprises this light, for the third time light and the 4th light for the first time.

7. light supply apparatus as claimed in claim 5, this light emitting module also provides at least one the 3rd light and at least one the 4th light, this control unit switches the light that this light emitting module sends between this first light, this second light, the 3rd light and the 4th light, the physiological stimulation value of the 4th light is less than the physiological stimulation value of the 3rd light, and the 4th light is identical in fact with the colour temperature of the 3rd light, and this first light is not identical in fact with the colour temperature of the 3rd light.

8. light supply apparatus as claimed in claim 7, the 3rd light comprises this light, this light and the 4th light for the second time for the first time, this for the first time light, for the second time light and the 4th light intensity portfolio ratio in the 3rd light be different from this light, this light and the 4th light intensity portfolio ratio in this first light for the second time for the first time; The 4th light comprises this light, this light and the 4th light for the third time for the first time, this for the first time light, light and the 4th light intensity in the 4th light are different from this light, this light and the 4th light intensity in this second light for the third time for the first time for the third time for these.

9. light supply apparatus as claimed in claim 7, wherein this control unit makes the multiple different periods of this light emitting module in one day switch to respectively this first light, this second light, the 3rd light and the 4th light.

10. light supply apparatus as claimed in claim 1, wherein this control unit makes the multiple different periods of this light emitting module in one day switch to respectively this first light and this second light.

11. light supply apparatuses as claimed in claim 1, wherein this light supply apparatus also comprises User's Interface, the signal of the operation corresponding to user that this control unit sends according to this User's Interface determines this light that light emitting module provides.

12. light supply apparatuses as claimed in claim 11, wherein this control unit makes light emitting module provide respectively this different light in multiple different times according to time management data, and wherein these time management data are relevant to biological physiological clock.

13. light supply apparatuses as claimed in claim 12, wherein this light supply apparatus also comprises data writing system, these time management data are received and are stored in memory cell by this control unit by data writing system, and this control unit is by being written into these time management data to control this control unit from this memory cell.

14. 1 kinds of light supply apparatuses, is characterized in that comprising:

Light emitting module, provides light, and this light at least comprises the first light and the second light; And

Control unit switches this light that this light emitting module sends between this first light and this second light, and wherein the physiological stimulation value of this first light has more the more than 5% of physiological stimulation value of this second light than the physiological stimulation value of this second light.

15. 1 kinds of lighting devices, is characterized in that comprising:

The first light source, in order to the first light to be provided, it has the first physiological stimulation value; And

Secondary light source, in order to the second light to be provided, it has the second physiological stimulation value,

Wherein, this first light has identical in fact colour temperature with this second light, and this first physiological stimulation value is different from this second physiological stimulation value.

Images