TW202015490A - Light source apparatus - Google Patents

Abstract

A light source apparatus including a light-emitting module and a control unit is provided. The light-emitting module is configured to provide a light. The control unit makes the light emitted from the light-emitting module switched among a plurality of kinds of first light. Correlated color temperatures of the plurality of kinds of first light are different from each other, and circadian action factors of the plurality of kinds of first light are substantially the same as each other. A display apparatus is also provided.

Description

Light source device

The present disclosure relates to a light source device and a display device, and in particular to a light source device and a display device that can provide different physiological stimulation lights.

With the invention of light bulbs by Thomas Alva Edison, the light source generated by electricity not only lights up the night, but also lights up human civilization. With this artificial light source, human beings can use the time of the night, which has further driven Technology and education development. In the study of the influence of light sources on physiological stimuli, Yasukouchi found that light sources with high color temperature at night inhibited melatonin secretion more than light sources with low color temperature. Secondly, since 2001, the relationship between Branard’s research on the human eye and biological effects has further pointed out the relationship between light sources and melatonin secretion and physiological effects, and the light sources and physiological stimuli are shown in Figure 1. Correspondence curve (2001 Action Spectrum for Melatonin Regulation in Humans: Evidence for a Novel Circadian Photoreceptor). Furthermore, it can be explained that different wavelengths of the light source (400nm-550nm) will affect the physiological stimulus (circadian stimulus, CS) differently, and determine the degree of the influence of the light source on the human body's physiological stimulus. Therefore, if the light source is used at night or daytime, it is necessary to use a suitable light source The spectrum composition provides appropriate artificial lighting source.

An embodiment of the present disclosure provides a light source device including a light emitting module and a control unit. The light emitting module is used to provide a light. The control unit switches the light emitted by the light emitting module between a first light and a second light, wherein the spectrum of the first light is different from the spectrum of the second light, and the color temperatures of the second light and the first light are substantially equal to each other The same.

An embodiment of the present disclosure provides a light source device including a light emitting module and a control unit. The light emitting module is used to provide a light. The control unit causes the light emitted by the light emitting module to switch between multiple first rays, the correlated color temperatures (CCT) of the multiple first rays are different from each other, and the physiological stimulation values of the multiple first rays are substantially equal to each other the same.

An embodiment of the present disclosure provides a light source device including a light emitting module and a control unit. The light emitting module is used to provide a light. The control unit is used to change the ratio of a first sub-ray to a second sub-ray to form light. Therefore, the circadian action factor (CAF) of the light and the correlated color temperature are different along the circadian rhythm of sunlight The circadian rhythm action factor of the ray of the factor relative to the trajectory of the correlated color temperature changes relative to the trajectory of the correlated color temperature, where the circadian rhythm action factor of one of the first and second sub-rays relative to the correlated color temperature falls on the sun The circadian rhythm factor of the relative color temperature is below the trajectory of the correlated color temperature, and the coordinates of the other circadian rhythm factor of the first and second sub-rays relative to the correlated color temperature fall on the sunlight. Above the trajectory of color temperature.

An embodiment of the present disclosure provides a light source device including a light emitting module and a control unit. The light emitting module is used to provide a light. The control unit is used to switch the light between a first light and a second light, thus changing at least one of the blue light hazard and physiological stimulation value of the light, wherein the wavelength of the blue main wave peak in the spectrum of the first light is greater than the first The wavelength of the main peak of blue light in the spectrum of two rays.

An embodiment of the present disclosure provides a light source device including a light emitting module and a control unit. The light emitting module is used to provide a light beam, which includes a red sub-beam, a green sub-beam and a blue sub-beam. The control unit is used to change the ratio of the red sub-beam, the green sub-beam and the blue sub-beam to form different white light. The wavelength of the main peak in the spectrum of the blue sub-beam falls within the range of 460 nm to 480 nm.

An embodiment of the present disclosure provides a light source device including a light emitting module and a control unit. The light emitting module is used to provide a light beam, which includes a red sub-beam, a green sub-beam and a blue sub-beam. The control unit is used to change the ratio of the red sub-beam, green sub-beam and blue sub-beam to form different white light. The wavelength of the main peak in the spectrum of the blue sub-beam falls within the range of 440 nm to 450 nm.

An embodiment of the present disclosure provides a light source device including a light emitting module and a control unit. The light emitting module is used to provide a light. The control unit is used to change the ratio of a first sub-ray to a second sub-ray to form light, and thus change the correlated color temperature and blue light hazard of the light. At the same correlated color temperature, the blue light hazard of the light is changeable, and the correlated color temperature of the first sub-ray is lower than the correlated color temperature of the second sub-ray.

An embodiment of the present disclosure provides a light source device including a first light source, a second light source, and a control unit. The first light source is used to generate a first light with a first spectral distribution, wherein the first light has a first color coordinate on a chromaticity diagram. The second light source is used to generate a second light with a second spectral distribution, wherein the second light has a second color coordinate on the chromaticity diagram. The second spectral distribution is different from the first spectral distribution. The control unit is used to drive the first light source and the second light source, wherein the light source device is designed in such a way that the first color coordinate and the second color coordinate substantially match.

An embodiment of the present disclosure provides a light source device including a first light source, a second light source, and a control unit. The control unit is used to control the first light source and the second light source. The first light source is used to provide a first light having a correlated color temperature between 2500 K and 3000 K and a color rendering index greater than 90. The second light source is used to provide a The second light, and the color rendering index of the first light is greater than the color rendering index of the second light.

An embodiment of the present disclosure provides a light source device including a first light-emitting diode light source and a second light-emitting diode light source. The first light-emitting diode light source and the second light-emitting diode light source are configured to be operated in a first operation mode for emitting a first light and configured to be operated in a first mode for emitting a second light In the second operation mode, the first ray and the second ray fall within the same MacAdam ellipse at the target correlated color temperature, and the physiological stimulus value of the first ray is more than the physiological stimulus value of the second ray. At least 5% of the stimulation value, at least one of the first light-emitting diode light source and the second light-emitting diode light source includes at least one light-emitting diode configured to excite at least one fluorescent material to emit light.

An embodiment of the present disclosure provides a light source device including a display and a backlight element for illuminating the display. The backlight element includes a first light-emitting diode light source and a second light-emitting diode light source. Wherein the first light-emitting diode light source and the second light-emitting diode light source are configured to be operated in a first operating mode for emitting a first light and configured to be operated in a first operating mode for emitting a second light In a second mode of operation, the first ray and the second ray fall within the same MacAdam ellipse at the target correlated color temperature, and the physiological stimulus value of the first ray is greater than the physiological stimulus value of the second ray. More than 5% of physiological stimulation value.

An embodiment of the present disclosure provides a light source device including a first light source. The first light source is used to provide a first light. The coordinates of the circadian rhythm factor of the first light relative to the correlated color temperature (CCT, CAF) fall in (2700±100 K, 0.197), (2700±100 K, 0.696), (4500±200 K, 0.474), ( The coordinates of the six circadian rhythm effect factors of 4500±200 K, 1.348), (6500±300 K, 0.759) and (6500±300 K, 1.604) relative to the correlated color temperature are within a first area formed by the vertices.

An embodiment of the present disclosure provides a light source device including a first light source for providing a first light. The circadian rhythm action factor of the first light with respect to the coordinates of the correlated color temperature (CCT, CAF) falls within an area with an upper boundary, a lower boundary, and the circadian rhythm action factor between the upper and lower boundaries The coordinates of the correlated color temperature, where the circadian rhythm factor is relative to the coordinates of the correlated color temperature (2700±100 K, 0.696), (4500±200 K, 1.348) and (6500±300 K, 1.604) on the upper boundary, and the circadian rhythm effect The coordinates of the factor relative to the correlated color temperature (2700±100 K, 0.197), (4500±200 K, 0.474) and (6500±300 K, 0.759) are located on the lower boundary.

In order to make the above-mentioned features and advantages of the present disclosure more comprehensible, the embodiments are specifically described below in conjunction with the accompanying drawings for detailed description as follows.

2A is a schematic diagram of a light source device in an embodiment of the disclosure, FIG. 2B is a variation of the light source device in the embodiment of FIG. 2A, and FIG. 2C is a relative light emitted by the light source device in the embodiment of FIG. 2B. Please refer to FIGS. 2A to 2C for schematic diagrams of light intensity and light wavelength spectrum. In this embodiment, the light source device 100 includes a light emitting module 110 and a control unit 120. The light emitting module 110 provides a light B. In this embodiment, the meaning represented by the light B is that the light emitted by the light emitting module 110 may have a divergence angle, and is not limited to a specific transmission direction. The control unit 120 is used to switch the light B emitted by the light emitting module 110 to a first light L1 or a second light L2. The physiological stimulus value (circadian stimulus/photometry, CS/P) of the second light L2 is smaller than the physiological stimulus value of the first light L1, and the color temperature of the second light L2 and the first light L1 are substantially the same. In this way, the light source device 100 can choose to provide the first light L1 with a high physiological stimulus or the second light with a low physiological stimulus according to the actual use environment, time and purpose in a situation where it is difficult for the user to perceive the change of light color temperature L2, to maintain the user's natural physiological cycle while providing sufficient light source.

其中，CS(λ)代表人類的生理函數，P(λ)代表人類的明視覺函數，P_0λ 代表混光完成後的光譜，而CS代表混光完成後光譜的生理刺激值，P代表混光完成後光譜的強度值。其中，有關於明視覺函數P(λ)是依照國際照明委員會(Commission internationale de l'éclairage，CIE)的定義。並且人類的生理函數CS(λ)可參照Professor Brainard所提出的Action spectrum(1997)，如圖1所示，Mark Rea所提出的人體非視覺生理函數(2005)以及German pre-standard DIN V所提出的生理函數，並且本揭露之光源裝置100可適用於各種生理函數。並且，圖3是美國國家標準協會(American national standard institute，ANSI)所定義的同色溫的色座標型態的示意圖，請參照圖3，在本實施例中，同色溫的定義是依照美國國家標準協會的定義。換言之，依照此一標準設計之同色溫的光源，對人眼而言的顏色差異不易察覺。其中，圖3示意圖中所繪示的美國國家標準協會定義的色座標型態的詳細座標值請參照表1如下： 表1

其中，表1的數據範圍可換算為圖3中的公差四邊形色溫範圍S1至S8。舉例而言，落在公差四邊形色溫範圍S1內的色溫座標值對而人眼而言很接近，依此類推。更詳細而言，表1中的公差四邊形可進一步換算為色溫值範圍如下表2： 表2

其中，表2的數據範圍可換算為圖3中的橢圓色溫範圍e1至e8，進一步而言，這些橢圓色溫範圍e1至e8亦即麥克亞當(David MacAdam)橢圓。舉例而言，落在橢圓色溫範圍e1內的各色溫座標值對而人眼而言很接近，依此類推。值得注意的是，表1與表2中的座標數據為舉例說明本實施例中之實質上色溫相同，實際之座標數據請參照美國國家標準協會的最新定義，本揭露不以此為限。在另一實施例中，色溫實質上相同代表在同一橢圓色溫範圍內。藉此，光源裝置100可在不易讓使用者察覺到光色色溫變化的情形下，依照實際使用環境、時間及目的以選擇提供不同生理刺激值的光源，以維持使用者生理週期並同時提供足夠的光源。In detail, in this embodiment, the definition of the physiological stimulation value (CS/P) is as shown in the following formula:

Among them, CS(λ) represents the physiological function of human beings, P(λ) represents the human vision function, P _0λ represents the spectrum after light mixing is completed, and CS represents the physiological stimulation value of the spectrum after light mixing is complete, P represents the light mixing The intensity value of the spectrum after completion. Among them, the bright vision function P(λ) is in accordance with the definition of the Commission Internationale de l'éclairage (CIE). And the human physiological function CS(λ) can refer to the Action spectrum (1997) proposed by Professor Brainard, as shown in FIG. 1, the human non-visual physiological function proposed by Mark Rea (2005) and the German pre-standard DIN V And the light source device 100 of the present disclosure can be applied to various physiological functions. In addition, FIG. 3 is a schematic diagram of the color coordinate pattern of the same color temperature defined by the American National Standard Institute (ANSI). Please refer to FIG. 3. In this embodiment, the definition of the same color temperature is in accordance with the American National Standard Definition of association. In other words, the light source of the same color temperature designed according to this standard is not easy to detect the color difference for human eyes. Among them, the detailed coordinate values of the color coordinate types defined by the American National Standards Institute shown in the schematic diagram of FIG. 3 are as follows, referring to Table 1 as follows: Table 1

Among them, the data range of Table 1 can be converted into the tolerance quadrilateral color temperature range S1 to S8 in FIG. 3. For example, the color temperature coordinate values that fall within the color temperature range S1 of the tolerance quadrilateral are close to the human eye, and so on. In more detail, the tolerance quadrilaterals in Table 1 can be further converted into color temperature value ranges as shown in Table 2 below: Table 2

Among them, the data range of Table 2 can be converted into the ellipse color temperature range e1 to e8 in FIG. 3, and further, these ellipse color temperature ranges e1 to e8 are also David MacAdam (David MacAdam) ellipses. For example, the color temperature coordinate values that fall within the elliptical color temperature range e1 are very close to the human eye, and so on. It is worth noting that the coordinate data in Table 1 and Table 2 is an example to illustrate that the color temperature in this embodiment is substantially the same. For the actual coordinate data, please refer to the latest definition of the American National Standards Institute. This disclosure is not limited to this. In another embodiment, the color temperatures being substantially the same represent the same elliptical color temperature range. In this way, the light source device 100 can select a light source that provides different physiological stimulation values according to the actual use environment, time and purpose under the situation that the user is not easy to perceive the change of the light color and color temperature, so as to maintain the user's physiological cycle and provide sufficient Light source.

In detail, referring to FIG. 2A, the control unit 120 can switch the light emitting module 110 between a plurality of light emitting modes. The light emitting modes include a first physiological stimulation mode and a second physiological stimulation mode. The light emitting module 110 includes multiple Light-emitting units D, which may include electroluminescent elements, photoluminescent elements, or a combination thereof. The light-emitting unit D includes at least one first light-emitting unit D1, at least one second light-emitting unit D2 and at least one third light-emitting unit D3, the first light-emitting unit D1 provides a first sub-light W1, and the second light-emitting unit D2 provides a first Two sub-beams W2, and the third light-emitting unit D3 provides a third sub-beam W3. The at least one wave peak range of the first sub-ray W1 may be greater than 420nm and less than 480nm, the at least one wave peak range of the second sub-ray W2 may be greater than 480nm and less than 540nm, and the at least one wave peak range of the third sub-ray W3 may be Greater than 540nm.

When the control unit 120 causes the light emitting module 110 to switch to the first physiological stimulation mode, the control unit 120 causes the first part P1 of the light emitting units D to provide the first light L1, where the first light L1 may include the first sub-light W1 and the first light Two sub-lights W2, and when the control unit 120 causes the light emitting module 110 to switch to the second physiological stimulation mode, the control unit 120 causes the second part P2 of these light emitting units D to provide the second light L2, wherein the second light L2 may include The first sub-light W1 and the third sub-light W3, and the color temperature of the first light L1 and the second light L2 are substantially the same, so the physiological stimulation value can be changed to meet different needs without affecting the user's color temperature perception.

In addition, the light source device 100' in FIG. 2B is similar to the light source device 100 shown in FIG. 2A. In FIG. 2B, each light-emitting unit correspondingly provides a peak range of light waves as shown in the embodiment of FIG. 2A. However, the difference is that The first part P1' of the light source device 100' in FIG. 2B may further include a third light emitting unit D3.

In the first physiological stimulation mode, the first light L1' provided by the first part P1' may include a first sub-light W1, a second sub-light W2 and a third sub-light W3. In the second physiological stimulation mode, the second light L2' provided by the second part P2' may include a first sub-light W1 and a third sub-light W3.

The spectrum after mixing light in FIG. 2B is as shown in FIG. 2C. Since the physiological stimulation value of the second sub-ray W2 is greater than the physiological stimulation value of the third sub-ray W3, the first light L1′ and the second light L2′ It is the same color temperature of 3000K. Due to the different light mixing spectrum, the physiological stimulation value is different. The spectrum of the first light L1' is shown as the light mixing spectrum curve SH1 in FIG. 2C. The calculated physiological stimulation value CS/P is about 0.43. The mixed light spectrum of the second light L2' is shown as the spectral curve SL1 in FIG. 2C, and the physiological stimulus value CS/P is calculated to be about 0.27, which is the CS/P calculated by the above formula, where the first light L1' The physiological stimulation value of is calculated to be about 159% of the physiological stimulation value of the second light L2'. Thereby, the physiological stimulation value of the second light L2' and the first light L1' can be more significantly different. However, the above purpose can be achieved, and this disclosure is not limited to this.

Further, the control unit 120 can enable the light B emitted by the light emitting module 110' to be switched to the first physiological stimulation mode (that is, to provide the first light L1') or the second according to needs at various times of the day. Physiological stimulation mode (ie providing the second light L2'). In detail, FIG. 2D depicts a timing chart of the light source device in the embodiment of FIG. 2B having different lighting modes at different periods. Please refer to FIGS. 2B and 2D. For example, the light source device 100' can be applied to restaurant lighting. The first light L1' with a color temperature of 3000K and a high physiological stimulus value can be provided during working hours (as shown in FIG. 2D from 9:00 to 18:00) to improve the vigilance and work spirit of service personnel, At the same time, it also allows the guests to have a visual warmth and comfort. In the evening (as shown in FIG. 2D from 18:00 to 22:00), the light emitting module 110' in the light source device 100' can be switched to the second color temperature which is also 3000K but has a lower physiological stimulation value The light L2' can reduce the physiological stimulation to the service staff and tenants in the evening shift without affecting the color temperature of the lighting, so as to avoid affecting the secretion of melatonin and affecting the health of the service staff and tenants. It is worth noting that the timing in FIG. 2D is only used to illustrate this embodiment. In other embodiments, the timing may vary according to implementation requirements, and the disclosure is not limited thereto.

Furthermore, FIG. 2E is a block diagram of the light source device in FIG. 2A. Please refer to FIG. 2E. In this embodiment, the light source device 100 may further include a user interface 130. The control unit 120 is based on the user interface 130. An input signal corresponding to the operation of the user UR determines the current lighting mode of the light source device 100. In detail, the control unit 120 is, for example, a microprocessor, and can cause the light emitting module 110 to switch to different lighting modes at a plurality of different times according to a time management data DT, wherein the time management data DT and the biological physiological clock Related. For example, the time management data DT may be the mode switching time data as shown in the timing diagram in FIG. 2D, but this disclosure is not limited to this. In more detail, the light source device 100 may further include a data writing system DR, the time management data DT may be received by the data writing system DR and connected to the control unit 120 and stored in a storage unit SV, and the control unit 120 The time management data DT is loaded from the storage unit SV to control the control unit 120 and cause the light source driving module DM of the light emitting module 110 to drive the first part P1 or the second part P2 to achieve the described in the embodiment of FIG. 2A effect. On the other hand, the light source device 100 may further include a connection interface 140 that transmits the time management data DT from the data writing system DR to the control unit 120, where the connection interface 140 is a wired connection interface or a wireless connection interface. For example, the connection interface 140 is, for example, a manual switch or a remote controller. The user UR can use the manual switch or the remote controller to select or change the lighting mode of the light source device 100. On the other hand, the light source device 100 can also automatically select or change the lighting mode according to the content of the time management data DT according to the time to meet the needs of the user UR.

However, the light emitting module 110 of the light source device 100 in the embodiment of FIG. 2A can provide the first light L1 and the second light L2 having the same color temperature and different physiological stimulation values. However, in other embodiments, light with the same or different color temperature and different physiological stimulation values may also be provided.

For example, FIG. 4A is a schematic diagram of a light source device in another embodiment of the present disclosure. Similar to the embodiment of FIG. 2A, the light source device 300 includes a first light-emitting unit D1, a second light-emitting unit D2, and a third light-emitting unit D3. Including D31 and D32.

The first part P13 of the light source device 300 includes a first light-emitting unit D1, a second light-emitting unit D2, and a third light-emitting unit D31, which correspondingly generates a first sub-ray W1, a second sub-ray W2, and a third sub-ray W3, wherein, The second sub-beam W2 can be generated by a phosphor excited by the first sub-beam W1 (ie, the second light-emitting unit D2 can be a phosphor), and the third sub-beam W3 is generated by a light-emitting diode. The second part P23 where the light source device 300 emits light includes a first light-emitting unit D1 and a third light-emitting unit D32, which respectively generate the first sub-light W1 and the third sub-light W3. Wherein, the first sub-light W1 may be light generated by a light-emitting diode, and the third sub-light W3 may be generated by a phosphor excited by the first sub-light W1 (that is, the third light-emitting unit D32 may be a fluorescent light Light body). The at least one wave peak range of the first sub-ray W1 is greater than 420 nm and less than 480 nm, the at least one wave peak range of the second sub-ray W2 is greater than 480 nm and less than 540 nm, and the at least one wave peak of the third sub-ray W3 is greater than 540 nm.

In the embodiment of FIG. 4A, the difference is that in the light source device 300 of FIG. 4A, the control module 320 switches the light B3 emitted by the light emitting module 310 between the first light L13 and the second light L23. The first light The color temperature of L13 and the second light L23 are different.

4B illustrates the spectral curve of the first light L13 in the embodiment of FIG. 4A, and FIG. 4C illustrates the spectral curve of the second light L23 in the embodiment of FIG. 4A. In this embodiment, FIG. 4B takes 6500k color temperature as an example, and FIG. 4C takes 3000k color temperature as an example. The physiological stimulus value of the first light L13 provided by the light-emitting module 310 of the light source device 300 is calculated to be about 0.94 by the spectral curves in FIGS. 4B and 4C through the above calculations, and the physiological value of the second light L23 The stimulation value is about 0.27, wherein the physiological stimulation value of the first light L13 is about 3.48 times the physiological stimulation value of the second light L23, that is, the physiological stimulation value of the first light L13 is more than the physiological stimulation value of the second light L23 The physiological stimulation value of the second light L23 is more than 5%.

FIG. 4D illustrates a timing diagram of the light source device in the embodiment of FIG. 4A having different lighting modes at different periods. Thereby, the light source device 300 can be applied to home lighting. As shown in FIG. 4D, the light emitting module 310 of the light source device 300 can provide a high physiological stimulation value and a high color temperature during daytime periods (eg, 9:00 to 18:00) (6500k) light source to make people feel refreshed and invigorate, at night time (such as 18:00 to 22:00) provides a light source with low physiological stimulation value and low color temperature (3000k) to make people warm and comfortable a feeling of. The above-mentioned physiological stimulation values and the spectral curves of FIGS. 4B and 4C are only used to illustrate this embodiment, and in other embodiments may be different according to actual needs, and the disclosure is not limited thereto. In other embodiments, the light emitting module may provide light with different correlated color temperatures but substantially the same physiological stimulation value in different modes, or light with different or substantially the same optical parameters, which It will be presented in the embodiments of FIGS. 15 to 22B described below.

FIG. 5A is a schematic diagram of a light source device in another embodiment of the present disclosure, similar to the embodiment of FIG. 2A, however, in this embodiment, the light emitting module 410 further includes at least a fourth light emitting unit D4. The first light-emitting unit D1 provides a first sub-light W1, the second light-emitting unit D2 provides a second sub-light W2, the third light-emitting unit D3 provides a third sub-light W3, and the fourth light-emitting unit D4 provides a first Four rays W4. As shown in FIG. 5A, the first part P14 may include a first light emitting unit D1, a second light emitting unit D2 and a fourth light emitting unit D4, and the second part P24 may include a first light emitting unit D1, a third light emitting unit D3 and Fourth light emitting unit D4. When the control unit 420 causes the light-emitting module 410 to switch to the first physiological stimulation mode, the first light-emitting unit D1 emits the first sub-light W1, the second light-emitting unit D2 emits the second sub-light W2, and the fourth light-emitting unit D4 emits the first Four light beams W4, when the control unit 420 causes the light emitting module 410 to switch to the second physiological stimulation mode, the first light emitting unit D1 emits the first light beam W1, the third light emitting unit D3 emits the third light beam W3, and the fourth The light emitting unit D4 emits a fourth sub-ray W4, wherein the physiological stimulation value of the first sub-ray W1 is greater than the physiological stimulation value of the second sub-ray W2, and the physiological stimulation value of the second sub-ray W2 is greater than the physiological stimulation of the third sub-ray W3 value. In short, in the first physiological stimulation mode, the first light L14 provided by the light emitting module 410 of the light source device 400 may include a first sub-light W1, a second sub-light W2, and a fourth sub-light W4. In the second physiological stimulation mode, the second light L24 provided by the light emitting module 410 of the light source device 400 may include a first sub-light W1, a third sub-light W3, and a fourth sub-light W4. Thereby, the light source device 100 of the embodiment in FIG. 2A can have similar effects.

In other words, the light emitting module 410 of the light source device 400 may include a first light emitting unit D1, a second light emitting unit D2, a third light emitting unit D3, and a fourth light emitting unit D4. Among them, at least the first light-emitting unit D1, the second light-emitting unit D2 and the fourth light-emitting unit D4 can form a first light source (ie, the first portion P14) and emit the first light L14, and the first light-emitting unit D1, the third light-emitting unit D3 The fourth light emitting unit D4 can form a second light source (ie, the second part P24) and emit the second light L24. The color temperature of the first light source and the second light source are substantially the same and have different physiological stimulation values.

In this embodiment, the first light-emitting unit D1 in FIG. 5A can be a light-emitting diode, the second sub-light W2 can be generated by a first phosphor excited by the first sub-light W1, and the third sub-light W3 It can be generated by a second phosphor excited by the first sub-ray W1. In other words, in this embodiment, the second light-emitting unit D2 and the third light-emitting unit D3 can be photoluminescent (such as fluorescent) materials, which can Excited by the first sub-ray W1 to generate the second sub-ray W2 and the third sub-ray W3 with different wave peak ranges. In addition, in this embodiment, the fourth light-emitting unit D4 is, for example, a light-emitting diode. However, in other embodiments, the fourth light-emitting unit D4 may be a photoluminescent material that is excited by light to generate a fourth sub-ray W4 ( Such as phosphor), this disclosure is not limited to this. In another embodiment, the first light-emitting unit D1, the second light-emitting unit D2, the third light-emitting unit D3 and the fourth light-emitting unit D4 may be light-emitting diodes or light-emitting diodes with different wave peak ranges and fluorescent light Body combination.

5B depicts the spectral curve of the first light L14 in the embodiment of FIG. 5A, while FIG. 5C depicts the spectral curve of the second light L24 in the embodiment of FIG. 5A, and FIG. 5D depicts the spectral curve of the embodiment in FIG. 5A. The light source device has timing charts with different lighting modes at different time periods. In detail, at least one wave peak range of the first sub-ray W1 is greater than 420 nm and less than 480 nm, and at least one wave peak range of the second sub-ray W2 is greater than 480 nm and less than 540 nm At least one wave peak range of the third sub-ray W3 is greater than 540 nm and less than 590 nm, and at least one wave peak range of the fourth sub-ray W4 is greater than 590 nm and less than 680 nm. Wherein, when the light source device 400 is in the first physiological stimulation mode, the spectrum of the first light L14 provided by the light emitting module 410 is as shown in the light mixing spectrum curve in FIG. 5B. When the light source device 400 is in the second physiological stimulation mode, the light mixing spectrum of the second light L24 provided by the light emitting module 410 is as shown in the spectral curve in FIG. 5C. In this embodiment, FIGS. 5B and 5C take the color temperature of 6500K as an example. With the spectral curves in FIGS. 5B and 5C, it can be concluded that the physiological stimulation value of the first light L14 of the light source device 400 is about 0.94, and the first The physiological stimulation value of the second light L24 is about 0.79. In this way, the light source device 400 can be applied to work lighting (such as hospital or factory lighting). As shown in FIG. 5D, the light emitting module 410 of the light source device 400 can be provided during daylight hours (eg, 9:00 to 18:00). A light source with a high physiological stimulation value and a high color temperature to make the staff feel refreshed and invigorate. At night time (for example, 18:00 to 22:00), a light source with a low physiological stimulation value but still maintaining a high color temperature is provided to Reduce the physiological stimulation of workers working at night to avoid affecting the health of workers. The above-mentioned physiological stimulation values and the spectral curves of FIG. 5B and FIG. 5C are only used to illustrate this embodiment, and in other embodiments may be different according to actual needs, and the disclosure is not limited thereto. It is worth noting that the light source device 400 in FIG. 5A can also be the light source device 300 in the embodiment of FIG. 4A, by adjusting the first sub-ray W1, the second sub-ray W2, the third sub-ray W3 and the fourth sub-ray The ratio between W4 is to provide the first light L14 and the second light L24 with different color temperatures and different physiological stimulus values of more than 5%. For related detailed descriptions, reference may be made to the embodiments shown in FIGS. 2A and 4A, which will not be repeated here.

FIG. 6A is a schematic diagram of a light source device in yet another embodiment of the present disclosure. FIGS. 6B to 6I illustrate the spectral curves of light provided by the light source device 500 under various color temperature conditions, similar to the embodiment of FIG. 5A. And have the first sub-ray W1, the second sub-ray W2, the third sub-ray W3, and the fourth sub-ray W4 with the same wave peak range, but the difference is that in this embodiment, the light source device 500 of FIG. 6A The light emitting module 510 can provide more sets of light sources with different color temperatures with high and low physiological stimulation values under these lighting modes. For example, in this embodiment, when the first light-emitting unit D11 and the first light-emitting unit D12 included in the light-emitting module 510 of the light source device 500 provide the first sub-light W1, the second light-emitting unit D2 provides the second sub-light When the light W2 and the fourth light-emitting unit D4 provide the fourth sub-light W4, the light-emitting module 510 of the light source device 500 can adjust the ratio of the first sub-light W1, the second sub-light W2 and the fourth sub-light W4 to adjust respectively Provide the first light L15 (e.g. 6500K, CS/P value 0.82), the third light L35 (e.g. 5000K, CS/P value 0.67) and the fifth light L55 (e.g. 4000K, CS /P value 0.54) and the seventh light L75 (for example 3000K, CS/P value 0.39). On the other hand, when the first light-emitting unit D11 and the first light-emitting unit D13 in the light-emitting module 510 of the light source device 500 provide the first sub-light W1, the third light-emitting unit D3 provides the third sub-light W3 and the fourth light-emitting unit D4 When the fourth sub-light W4 is provided, the light-emitting module 510 of the light source device 500 can adjust the ratio of the first sub-light W1, the third sub-light W3 and the fourth sub-light W4 to provide a lower physiological level according to the use requirements Stimulus value of the second light L25 (6500K, CS/P value 0.72), fourth light L45 (5000K, CS/P value 0.57), sixth light L65 (4000K, CS/P value 0.45), and eighth light L85 ( 3000K, CS/P value 0.30). Therefore, the light emitting module 510 of the light source device 500 can provide more sets of color temperature light sources than the light emitting modules 110 and 110' of the light source devices 100 and 100' of FIGS. 2A and 2C, thereby meeting various usage requirements. And has good application potential.

In detail, in this embodiment, the light source device 500 may include a first physiological stimulation mode, a second physiological stimulation mode, a third physiological stimulation mode, a fourth physiological stimulation mode, a fifth physiological stimulation mode, a sixth physiological stimulation mode 7. The seventh physiological stimulation mode and the eighth physiological stimulation mode. Furthermore, the control unit 520 causes the light emitting module 500 to emit light under these physiological stimulation modes in the first light L15 (spectral curve shown in FIG. 6B), the second light L25 (spectral curve shown in FIG. 6C), and the third light L35 (Spectral curve shown in Figure 6D), fourth light L45 (spectral curve shown in Figure 6E), fifth light L55 (spectral curve shown in Figure 6F), sixth light 65 (spectral curve shown in Figure 6G), seventh light L75 (spectrum The curve is as shown in Fig. 6H) and the eighth light L85 (the spectral curve is as shown in Fig. 6I), thereby providing more light sources.

In more detail, the physiological stimulation value of the second light L25 is smaller than the physiological stimulation value of the first light L15, and the color temperature of the second light L25 and the first light L15 are substantially the same. The physiological stimulation value of the fourth light L45 is smaller than the physiological stimulation value of the third light L35, and the color temperatures of the fourth light L45 and the third light L35 are substantially the same. The physiological stimulation value of the sixth light L65 is smaller than the physiological stimulation value of the fifth light L55, and the color temperatures of the sixth light L65 and the fifth light L55 are substantially the same. The physiological stimulation value of the eighth light L85 is smaller than the physiological stimulation value of the seventh light L75, and the color temperatures of the eighth light L85 and the seventh light L75 are substantially the same. Moreover, the color temperatures of the first light L15, the third light L35, the fifth light L55, and the seventh light L75 are substantially different, and the color temperatures of the second light L25, the fourth light L45, the sixth light L65, and the eighth light L85 Essentially different. In other words, the light emitting module 510 of the light source device 500 can provide more sets of color temperature light by adjusting the ratio of the first sub-light W1, the second sub-light W2, the third sub-light W3 and the fourth sub-light W4. And each group of light of the same color temperature can be switched between high physiological stimulation value and low physiological stimulation value.

Further, in this embodiment, the light emitting module 510 of the light source device 500 may include first light emitting units D11, D12 and D13, second light emitting units D2, third light emitting units D3 and fourth light emitting units D4. The first light-emitting units D11 and D12, the second light-emitting unit D2 and the fourth light-emitting unit D4 can form a first light source (ie, the first part P1) and emit the first light L15 and the third light L35 in each physiological stimulation mode , The fifth light L55 or the seventh light L75. On the other hand, the first light-emitting units D11 and D13, the third light-emitting unit D3 and the fourth light-emitting unit D4 can form a second light source (ie, the second part P2) and emit the second light L25, the second light in each physiological stimulation mode Four rays L45, sixth rays L65 or eighth rays L85.

By this, the light source device 500 can change the mixing ratio of the first sub-ray W1, the second sub-ray W2, the third sub-ray W3, and the fourth sub-ray W4, and can achieve high physiology at a color temperature of 6500K. The first light L15 with a stimulation value is switched to the second light L25 with a low physiological stimulation value. It is also possible to switch between the third light L35 with a high physiological stimulation value and the fourth light L45 with a low physiological stimulation value under the condition of a color temperature of 5000K. It is also possible to switch between the fifth light L55 with a high physiological stimulation value and the sixth light L65 with a low physiological stimulation value under the condition of a color temperature of 4000K. In addition, it can switch between the seventh light L75 with a high physiological stimulation value and the eighth light L85 with a low physiological stimulation value under the condition of 3000K color temperature. As such, the light source device 500 may have greater application potential.

Furthermore, the first light L15 and the second light L25 have different physiological stimulation values at the same color temperature, the third light L35 and the fourth light L45 have different physiological stimulation values at the same color temperature, and the fifth light L55 and the sixth light L65 has different physiological stimulation values at the same color temperature, and seventh light L75 and eighth light L85 have different physiological stimulation values at the same color temperature. However, in other embodiments, the first light L15 and the second light L25 may also have different color temperatures and the physiological stimulation value of the first light L15 is higher than the physiological stimulation value of the second light L25 by the second light L25 More than 5%. The third light L35 and the fourth light L45 may also have different color temperatures and the physiological stimulation value of the third light L35 is more than 5% of the physiological stimulation value of the fourth light L45 than the physiological stimulation value of the fourth light L45. The fifth light L55 and the sixth light L65 may also have different color temperatures, and the physiological stimulation value of the fifth light L55 is more than the physiological stimulation value of the sixth light L65 by more than 5% of the physiological stimulation value of the sixth light L65. The seventh light L75 and the eighth light L85 may also have different color temperatures and the physiological stimulation value of the seventh light L75 may be more than 5% of the physiological stimulation value of the eighth light L85 than the physiological stimulation value of the eighth light L85. In this way, the light source device 500 in FIG. 6A can also have similar effects.

6J depicts a timing diagram of the light source device in the embodiment of FIG. 6A having different lighting modes at different time periods, please refer to FIG. 6J, for example, the light source device 500 can be applied to office lighting, wherein the light source device 500 is in daylight hours (As shown in FIG. 6J, 8:00 to 11:00) The first physiological stimulation mode can be switched to enable the light emitting module 510 to provide the first light L15 with a high color temperature (6500K) and a high physiological stimulation value. During the lunch break (11:00 to 13:00), the light source device 500 can be switched to the second physiological stimulation mode to enable the light emitting module 510 to provide the second light L25 with a high color temperature and a low physiological stimulation value. Physiological stimulation of the staff at rest. Then, the light source device 500 can switch back to the first physiological stimulation mode again in the afternoon period (13:00 to 16:00) after the end of the lunch break to improve work efficiency. In the evening period after get off work (as after 18:00 in FIG. 6J), the light source device 500 can be switched to the seventh physiological stimulation mode to enable the light emitting module 510 to provide the seventh light L75 with a low color temperature (3000K). In addition, the light source device 500 can be switched to the eighth physiological stimulation mode during sleep time (as shown after 22:00 in FIG. 6J) to enable the light emitting module 510 to provide the eighth light with a low color temperature (3000K) and the lowest physiological stimulation value L85. In addition, the light source device 500 can provide more various light source combinations to match a wider range of applications.

FIG. 7 is a schematic diagram of a light source device according to another embodiment of the present disclosure. FIG. 8A illustrates the spectrum of the light emitted from the light emitting unit and the first light in the first illumination mode in FIG. 7 respectively, and FIG. 8B illustrates the diagram. 7 shows the spectrum of the light and the second light emitted from the light-emitting unit in the second lighting mode respectively, and FIG. 9 illustrates the CIE 1976 u'-v' diagram of the first light and the second light in FIG. 7 (CIE 1976 u'-v' diagram). In FIGS. 8A and 8B, the horizontal axis represents wavelength and the unit is nanometer (nm), and the vertical axis represents spectral intensity and the unit is arbitrary unit. 7, 8A, 8B, and 9, the light source device 100 a of this embodiment is similar to the light source device 100 of FIG. 2A, and the main difference therebetween is that in the light source device 100, the spectrum of the first light L1 is different In the spectrum of the second light L2, and the color temperature of the first light L1 and the color temperature of the second light L2 are substantially the same as each other, the physiological stimulation values of the first light L1 and the second light L2 are not considered here.

In this embodiment, the light source device 100a includes a light emitting module 110a and a control unit 120. The light emitting module is used to provide light B, and the control unit 120 switches the light B emitted by the light emitting module 110a between the first light L1 and the second light L2. The spectrum of the first light L1 (see FIG. 8A) is different from the spectrum of the second light L2 (see FIG. 8B), and the color temperatures of the first light L1 and the second light L2 (see FIG. 9) are substantially the same as each other. Referring to FIG. 9, the color coordinates of the first light L1 and the color coordinates of the second light L2 are substantially on the same line segment representing that the correlated color temperature is 3000 K.

In this embodiment, the control unit 120 causes the light-emitting unit 110a to switch between multiple lighting modes. The lighting mode includes a first lighting mode and a second lighting mode. The light emitting module 110a includes a plurality of light emitting units, for example, a first light emitting unit D1, a second light emitting unit D2, a third light emitting unit D3, a fourth light emitting unit D4, and a fifth light emitting unit D5. When the control unit 120 switches the light-emitting module 110a to the first lighting mode, the control unit 120 causes the first part or all of the light-emitting units to emit the first light L1. In this embodiment, when the control unit 120 switches the light emitting module 110a to the first lighting mode, the control unit 120 causes all the light emitting units (including the first to fifth light emitting units D1-D5) to emit the first light L1. When the control unit 120 switches the light emitting module 110a to the second lighting mode, the control unit 120 causes the second part P2 of the light emitting unit (for example, including the first to fourth light emitting units D1-D4) to emit the second light L2. The first part and the second part are partially identical or completely different from each other.

The light-emitting unit (eg, the first to fifth light-emitting light-emitting units) includes an electroluminescent light-emitting element, a light-induced light-emitting element, or a combination thereof.

In this embodiment, the light emitting module 110a includes at least one first light emitting unit D1, at least one second light emitting unit D2, at least one third light emitting unit D3, at least one fourth light emitting unit D4, at least one fifth light emitting unit D5 . The first light-emitting unit D1 provides a first sub-light W1, the second light-emitting unit D2 provides a second sub-light W2, the third light-emitting unit D3 provides a third sub-light W3, and the fourth light-emitting unit D4 provides a fourth sub-light W4 and the fifth light-emitting unit D5 provide a fifth sub-ray W5. The second part P2 includes at least a first light emitting unit D1, a second light emitting unit D2, a third light emitting unit D3, and a fourth light emitting unit D4.

When the control unit 120 switches the light emitting module 110a to the first lighting mode, the first light emitting unit D1 emits the first sub-light W1, the second light emitting unit D2 emits the second sub-light W2, and the third light emitting unit D3 emits the third sub-light W3, the fourth light emitting unit D4 emits a fourth sub-ray W4 and the fifth light emitting unit D5 emits a fifth sub-ray W5. When the control unit 120 switches the light emitting module 110a to the second lighting mode, the first light emitting unit D1 emits the first sub-light W1, the second light emitting unit D2 emits the second sub-light W2, and the third light emitting unit D3 emits the third sub-light W3 and the fourth light emitting unit D4 emit a fourth sub-ray W4. Furthermore, the fifth sub-ray W5 is an invisible ray.

In this embodiment, one of the first light L1 and the second light L2 may include invisible light. For example, the first sub-ray W1, the second sub-ray W2, the third sub-ray W3 and the fourth sub-ray W4 may be visible rays, and the fifth sub-ray W5 is invisible rays. In particular, in this embodiment, the first sub-ray W1 is blue light, the second sub-ray W2 is green light, the third sub-ray W3 is yellow light, the fourth sub-ray W4 is red light and the fifth sub-light Light W5 is ultraviolet light. Furthermore, in this embodiment, the first light-emitting unit D1 is a first light-emitting diode (LED), the second light-emitting unit D2 is a first phosphor (phophor), and the third light-emitting unit D3 It is the second phosphor, the fourth light emitting unit D4 is the third phosphor and the fifth light emitting unit D5 is the second light emitting diode. The second sub-ray W2 is generated by the first phosphor excited by the first sub-ray W1, the third sub-ray W3 is generated by the second phosphor excited by the first sub-ray W1, and the fourth sub-ray W4 is generated by the first Generated by a third phosphor excited by a sub-ray W1. In this embodiment, the first, second, and third phosphors can be doped into the sealing material covering the first light-emitting unit D1 (eg, the first light-emitting diode).

In this embodiment, the first light L1 includes ultraviolet light, but the second light L2 does not include ultraviolet light. Therefore, when the light emitting module 110a is switched to the first lighting mode, the light emitting module 110a emits the first light L1 including white light and ultraviolet light, so the first light L1 is suitable for illuminating the product containing the fluorescent whitening agent, For example, fabric products. When the light emitting module 110a is switched to the second lighting mode, the light emitting module 110a emits second light L2 including white light but not ultraviolet light, so the second light L2 is suitable for illuminating leather shoes and leather products that are easily damaged by ultraviolet light And artwork, etc. Furthermore, in the light source device 100a of this embodiment, since the color temperatures of the first light L1 and the second light L2 are substantially the same as each other, when multiple light source devices 100a or the light emitting modules 110a are located in the same display space and emit When a light L1 and a second light L2, the light color of the light source device 100a or the light emitting module 110a is the same, and the first light L1 and the second light L2 may respectively achieve different effects.

In another embodiment, the first sub-ray W1 is blue light, the second sub-ray W2 may be cyan light, the third sub-ray W3 may be light yellow light, and the fourth The sub-ray W4 is a red ray and the fifth sub-ray W5 is an ultraviolet ray, so the spectrum of the second ray L2 including the first sub-ray W1, the second sub-ray W2, the third sub-ray W3 and the fourth sub-ray W4 is similar Continuous spectrum for natural white light.

In still another embodiment, the fifth sub-ray W5 may be infrared rays, and the infrared rays may be used in the positioning system. Therefore, the first light L1 can be used for both illumination and positioning.

10 is a schematic diagram of a light source device according to another embodiment of the present disclosure. FIG. 11A illustrates the spectrum of the light emitted from the light emitting unit and the first light in the first illumination mode in FIG. 10 respectively. FIG. 11B shows the spectrum of the light and the second light emitted from the light-emitting unit in the second illumination mode in FIG. 10 respectively. Fig. 12 illustrates the color coordinates of the first and second rays in Fig. 10 in the CIE 1976 u'-v' diagram. In FIGS. 11A and 11B, the horizontal axis represents wavelength and the unit is nanometer (nm), and the vertical axis represents spectral intensity and the unit is arbitrary unit. 10, 11A, 11B, and 12, the light source device 100b in this embodiment is similar to the light source device 100a in FIG. 7, and the main differences therebetween are as follows.

In this embodiment, the general color rendering index (general color rendering index, general CRI) of the first light L1' is greater than the general color rendering index of the second light L2'. The general color rendering index is defined as the average value of the color rendering index R1 (CRI R1) to the color rendering index R8 (CRI R8), and is marked as "Ra". Furthermore, in this embodiment, the luminous efficiency of the second light L2' is greater than the luminous efficiency of the first light L1'.

In this embodiment, the light emitting module 110b includes at least one first light emitting unit D1', at least one second light emitting unit D2', at least one third light emitting unit D3', at least one fourth light emitting unit D4', at least one first light emitting unit Five light emitting units D5' and at least one sixth light emitting unit D6'. The first light-emitting unit D1' provides a first sub-light W1', the second light-emitting unit D2' provides a second sub-light W2', the third light-emitting unit D3' provides a third sub-light W3', and the fourth light-emitting unit D4 'Providing a fourth sub-ray W4', the fifth light-emitting unit D5' provides a fifth sub-ray W5' and the sixth light-emitting unit D6' provides a sixth sub-ray W6'.

When the control unit 120 switches the light emitting module 110b to the first lighting mode, the control unit 120 causes the first part P1' of the light emitting unit (for example: the first, second, third, and fourth light emitting units D1', D2', D3 'And D4') emit the first light L1'. When the control unit 120 switches the light emitting module 110b to the second lighting mode, the control unit 120 causes the second part P2' of the light emitting unit (for example: the first, fifth, and sixth light emitting units D1', D5', D6') The second light L2' is emitted. The first part P1' and the second part P2' are partially the same as each other or completely different from each other. In the present embodiment, the first portion P1' and the second portion P2' are partially identical to each other, because both the first portion P1' and the second portion P2' include the first light emitting unit D1'.

The first part P1' includes at least a first light emitting unit D1', a second light emitting unit D2', a third light emitting unit D3' and a fourth light emitting unit D4'. The second part P2' includes at least a first light-emitting unit D1', a fifth light-emitting unit D5', and a sixth light-emitting unit D6'. When the control unit 120 switches the light-emitting module 110b to the first lighting mode, the first light-emitting unit D1' emits the first sub-light W1', the second light-emitting unit D2' emits the second sub-light W2', and the third light-emitting unit D3' The third sub-beam W3' is emitted and the fourth light-emitting unit D4' emits the fourth sub-beam W4'. When the control unit 120 switches the light-emitting module 110b to the second lighting mode, the first light-emitting unit D1' emits the first sub-light W1', the fifth light-emitting unit D5' emits the fifth sub-light W5' and the sixth light-emitting unit D6' The sixth sub-ray W6' is emitted.

In this embodiment, the first sub-ray W1' is blue, the second sub-ray W2' is green, the third sub-ray W3' is yellow, the fourth sub-ray W4' is red, and the fifth The light is W5' which is red light and the sixth sub-light W6' is light yellowish green light.

In this embodiment, the first light-emitting unit D1' is a first light-emitting diode, the second light-emitting unit D2' is a first phosphor, the third light-emitting unit D3' is a second phosphor, and the fourth light-emitting unit D4' is the third phosphor, the fifth light-emitting unit D5' is the second light-emitting diode and the sixth light-emitting unit D6' is the fourth phosphor. The first phosphor, the second phosphor, and the third phosphor are excited by the light emitted by the seven light-emitting units D7' (for example, the third light-emitting diode) (for example, the seventh sub-ray W7'), and respectively The second sub-ray W2', the third sub-ray W3' and the fourth sub-ray W4' are emitted. The fourth phosphor is excited by the light (e.g., eighth sub-ray W8') emitted from the eighth light-emitting unit D8' (e.g., fourth light-emitting diode), and emits the sixth sub-ray W6'. In this embodiment, for example, the seventh sub-ray W7' and the eighth sub-ray W8' are blue rays. In this embodiment, the first phosphor, the second phosphor and the third phosphor may be doped into the sealing material 113 covering the seventh light-emitting unit D7', and the fourth phosphor may be doped Into the sealing material 115 covering the eighth light emitting unit D8'.

In this embodiment, the general color rendering index of the first light L1' is greater than 90 and greater than the general color rendering index of the second light L2', but the luminous efficiency of the second light L2' is greater than the luminous efficiency of the first light L1'. Therefore, when the light emitting module 110b is switched to the first lighting mode, the light emitting module 110b emits the first light L1' having a higher general color rendering index, so the first light L1' is suitable for illuminating fresh food. Therefore, fresh food may have a better color. When the light-emitting module 110b is switched to the second lighting mode, the light-emitting module 110b emits second light L2' with higher light-emitting efficiency, so the second light L2' is suitable for situations where the light-emitting efficiency needs to be considered. As shown in Figs. 11A, 11B and 12, the first light L1' (Fig. 11A) and the second light L2' (Fig. 11B) have different spectra, but have substantially the same color temperature (Fig. 12). In Fig. 12, the color coordinates of the first light L1' and the color coordinates of the second light L2' are substantially on the same line segment representing that the correlated color temperature is between 2500K and 3000K. Furthermore, the spectrum of the second light L2' has a low physiological stimulation value and a low blue light hazard.

FIG. 13A is a graph showing the spectrum of the light emitted from the light emitting unit and the first light in the first light emitting mode in FIG. 10 according to another embodiment of the present disclosure, and FIG. 13B is a graph showing another embodiment of the present disclosure. FIG. 10 shows the spectra of the light emitted from the light emitting unit and the second light in the second light emitting mode, respectively, and FIG. 14 illustrates the first light and the second light in FIG. 10 according to another embodiment of the present disclosure. The color coordinates in the CIE 1976 u'-v' diagram. In FIGS. 13A and 13B, the horizontal axis represents wavelength and the unit is nanometer (nm), and the vertical axis represents spectral intensity and the unit is arbitrary unit. 10, 13A, 13B, and 14, the structure of the light source device 100b in this embodiment is substantially the same as the structure of the light source device 100b in the embodiments of FIGS. 10, 11A, 11B, and 12, but the main difference therebetween is that In this embodiment (as shown in FIGS. 13A and 13B), the spectra of the first light L1′ and the second light L2′ are different from the embodiments in FIGS. 10, 11A, 11B, and 12 (as shown in FIGS. 11A and 11B). Shown) the spectrum of the first light L1' and the second light L2'.

In this embodiment, the color rendering index R14 (CRI R14) of the first light L1' is greater than the color rendering index R14 of the second light L2', and the color rendering index R13 (CRI R13) of the second light L2' is greater than the first The color rendering index R13 of the light L1'. In particular, in this embodiment, the color rendering index R14 of the first light L1' is greater than 90 and the color rendering index R13 of the second light L2' is greater than 90. Furthermore, in this embodiment, the general color rendering indexes of the first light L1' and the second light L2' are both greater than 84.

In this embodiment, when the light emitting module 110b is switched to the first lighting mode, the light emitting module 110b emits the first light L1' having a higher color rendering index R14, so the first light L1' is suitable for lighting Green plants. Therefore, green plants can have better colors. When the light emitting module 110b is switched to the second lighting mode, the light emitting module 110b emits the second light L2' having a higher color rendering index R13, so the second light L2' is suitable for illuminating a human face or portrait, and Faces or portraits can have better colors. As shown in FIGS. 13A, 13B, and 14, the first light L1' (FIG. 13A) and the second light L2' (FIG. 13B) have different spectra, but have substantially the same color temperature (FIG. 14). In FIG. 14, the color coordinates of the first light L1' and the color coordinates of the second light L2' are substantially on the same line segment representing the correlated color temperature of 4000K.

The light-emitting unit of the above embodiment is not limited to light-emitting diodes or phosphors. In other embodiments, the light-emitting unit may be an organic light-emitting diode (OLED) or other suitable light-emitting elements.

15 is a schematic diagram of a light source device according to another embodiment of the present disclosure, FIG. 16A is a spectrum of sub-rays emitted by the light emitter of FIG. 15, and FIG. 16B is a circadian rhythm effect factor of light emitted by the light-emitting module of FIG. 15. Relative to the correlated color temperature. 15, 16A, and 16B, the light source device 600 in this embodiment includes a light emitting module 610 and a control unit 620. The light emitting module 610 is used to provide light B6. The control unit 620 causes the light B6 emitted by the light emitting module 610 to switch between multiple first lights. The correlated color temperatures (CCT) of the first rays are different from each other, and the circadian action factors of the first rays are substantially the same as each other. The circadian rhythm effect factor is the aforementioned physiological stimulation value (CS/P). For example, in FIG. 16B, the black square dots represent the circadian rhythm effect factor and the correlated color temperature of a first light, and the black square dots arranged substantially along a horizontal line in FIG. 16B represent those belonging to multiple first rays, respectively. Multiple circadian rhythm factors and multiple correlated color temperatures. "The circadian rhythm action factors of these multiple first rays are substantially the same as each other" means that the variation of these circadian rhythm action factors is within ±20% of the average of these circadian rhythm action factors, preferably within the circadian rhythm Within ±10% of the mean value of the action factor.

In this embodiment, the light emitting module 610 includes a plurality of light emitters E1, E2, E3, E41, and E42, respectively emitting sub-beams V1, V2, V3, V41, and V42 in different wavelength ranges, and the sub-beams V1, V2 , V3, V41 and V42 constitute the light B6 provided by the light emitting module 610. The light B6 emitted from the light emitting module 610 is switched between the plurality of first lights by changing the proportion of the sub-lights V1, V2, V3, V41, and V42. The light emitters E1, E2, E3, E41, and E42 include electroluminescent elements, photoluminescent elements, or a combination thereof. The electroluminescence element is, for example, a light-emitting diode chip, and the photoluminescence element is, for example, a phosphor. In this embodiment, the light emitters E1, E2, E3, and E41 are light-emitting diode chips, and the light emitter E42 is a phosphor. Furthermore, the light emitter E41 and the light emitter E42 constitute a light emitter E4, where the light emitter E41 is, for example, a blue light-emitting diode chip, and the light emitter E42 is, for example, yttrium aluminum garnet (YAG) fluorescent The light body, and the light emitter E4 is a white light emitting diode. That is, the sub-ray V41 is a blue sub-ray, the sub-ray V42 is a yellow sub-ray, the sub-ray V41 and the sub-ray V42 constitute a sub-ray V4, and the sub-ray V4 is a white ray. Specifically, when the sub-ray V41 from the light emitter E41 irradiates the light emitter E42, the light emitter E42 converts the sub-ray V41 into the sub-ray V42. The sub-ray V42 and the unconverted sub-ray V41 constitute a sub-ray V4.

In this embodiment, the peak wavelength of the sub-ray V1 falls within the range of 460 nanometers (nm) to 470 nanometers, the peak wavelength of the sub-ray V2 falls within the range of 515 nanometers to 525 nanometers, and the sub-ray V3 The peak wavelength falls within the range of 620 nm to 630 nm and the sub-ray V4 is white light with a correlated color temperature of 3100 K. In this embodiment, the full width at half maximum (FWHM) of each of the sub-beams V1, V2, and V3 emitted by the light-emitting diode chip is less than 40 nm. For example, the half-width of the sub-ray V1 is 25 nm, the half-width of the sub-ray V2 is 32 nm, the half-width of the sub-ray V3 is 18 nm, and the half-width of the sub-ray V4 is 74 In nano, the sub-ray V4 includes the sub-ray V42 and the unconverted sub-ray V41. In this embodiment, the sub-rays V1, V2, V3, and V4 are visible light, but the disclosure is not limited thereto.

The control unit 620 is used to change the ratio of the intensity of the sub-rays V1, V2, V3, V4 by changing the currents or voltages applied to the light emitters E1, E2, E3, and E41, respectively. Switch between lights. In the present embodiment, the ratio of the sub-rays V1, V2, V3, and V4 is changed by the pulse width modulation of the light emitters E1, E2, E3, and E41. For example, when the physiological stimulus value of the light B6 is 0.8 (as shown in FIG. 16B), by performing the pulse width modulation by the control unit 620, the correlated color temperature of the light B6 can be adjusted in the range of 3750K to 5500K. For example, when the physiological stimulus value is 0.8 and the correlated color temperature is 3750K, the duty cycle ratio of the pulse width modulation of the light emitters E1, E2, E3, and E41 is 3:18:17:2. When the physiological stimulation value is 0.8 and the correlated color temperature is 5500K, the ratio of the duty cycle of the pulse width modulation of the light emitters E1, E2, E3, E41 is, for example, 13:11:0:20.

In this embodiment, the Duv values of the various first rays are less than 0.005. For the color consistency of white light, the standard correlated color temperature still has an allowable range of chromaticity. Duv value is defined as the variation perpendicular to the Planckian locus in the CIE 1976 color space, which is used to illustrate the change in chromaticity. Generally speaking, if the Duv value is less than 0.005, the observer cannot easily discern the color inconsistency.

16C is a relationship diagram of the color rendering index of the light emitted by the light emitting module of FIG. 15 with respect to the correlated color temperature. Referring to FIGS. 15, 16A, and 16C, in this embodiment, the control unit 620 also switches the light B6 emitted by the light-emitting module 610 between multiple second lights, where the correlated color temperatures of the multiple second lights are different from each other, and The color rendering indexes of the various second rays are substantially the same as each other. For example, in FIG. 16C, the black square dots refer to the color rendering index and correlated color temperature of a second ray, and the black square dots arranged substantially along a horizontal line in FIG. 16C represent the respective second ray Multiple color rendering indexes and multiple correlated color temperatures. "The color rendering indexes of the various second rays are substantially the same as each other", which means that the color rendering index changes within ±5. In this embodiment, the Duv values of the various second rays are less than 0.005. In this embodiment, when the color rendering index of the light B6 is 85, the pulse color modulation is performed by the control unit 620, and the correlated color temperature of the light B6 can be adjusted within the range of 2700 K to 6500 K.

In this embodiment, the control unit 620 also switches the light B6 emitted from the light emitting module 610 between multiple third lights, where the correlated color temperatures of the multiple third lights are substantially the same as each other, and the Color rendering index or circadian rhythm effect factor (ie physiological stimulation value) are different from each other. "The correlated color temperatures of these multiple third rays are substantially the same as each other" The definition of "correlated color temperatures are substantially the same" as in the second paragraph of the embodiment (that is, paragraph [0006]) and the color temperatures mentioned in Table 2 are substantially the same Definition. In this embodiment, the black square dots in FIG. 16B or FIG. 16C represent the physiological stimulus value and correlated color temperature of a third light, or the color rendering index and correlated color temperature of a third light, and are substantially along the graph The black square dots arranged by the vertical lines of 16B or 16C represent multiple physiological stimulus values and multiple correlated color temperatures belonging to the multiple third rays, respectively, or multiple color rendering indexes and multiple correlated color temperatures belonging to the multiple third rays, respectively. . Furthermore, in this embodiment, the Duv values of the various third rays are less than 0.005. For example, when the correlated color temperature is 3000 K, by performing pulse width modulation by the control unit 620, the physiological stimulation value of the light B6 can be modulated within the range of 0.3 to 0.6. In addition, when the correlated color temperature is 3000 K, the color rendering index of the light B6 can be adjusted within the range of 55 to 93 by the control unit 620 performing pulse width modulation.

The control unit 620 can also switch the light B6 emitted by the light-emitting module 610 between multiple fourth lights, and the circadian rhythm effect factors (ie, physiological stimulation values) of the multiple fourth lights include or are substantially equal to a range of related color temperatures The circadian rhythm action factor of sunlight within, where this correlated color temperature range includes the range from 3000 K to 6500 K. The gray square dots and gray lines in FIG. 16B represent multiple circadian rhythm effect factors corresponding to multiple correlated color temperatures of sunlight, respectively, and all black square dots in FIG. 16B represent the corresponding fourth light rays. Multiple circadian rhythm effect factors for multiple correlated color temperatures. Fig. 16D is a graph showing the relationship between the circadian rhythm factor of sunlight and the correlated color temperature. Referring to FIGS. 15, 16A, 16B, and 16D, in this embodiment, the area of the black square dots in FIG. 16B contains gray square dots and gray lines, which represent the circadian rhythm action factors (such as physiological stimulation Value) The circadian rhythm action factor of the sunlight included in this correlated color temperature range (for example, the correlated color temperature range from 3000 K to 6500 K). Furthermore, in this embodiment, the Duv values of the various fourth rays are less than 0.005.

In this embodiment, the light B6 emitted from the light emitting module 610 passes through the control unit 620 to perform the above-described pulse width modulation to change the ratio of the sub-lights V1, V2, V3, and V4. Switch between multiple third lights and multiple fourth lights.

In the light source device 600 according to this embodiment, since the light B6 emitted from the light emitting module 610 can be switched between a variety of first rays, a variety of second rays, a variety of third rays, and a variety of fourth rays, the light source device 600 Can have more applications.

17 is a schematic diagram of a light source device according to another embodiment of the present disclosure, FIG. 18A is a spectrum of sub-rays emitted by the light emitter of FIG. 17, and FIG. 18B is a circadian rhythm effect factor of light emitted by the light-emitting module of FIG. Relative to the correlated color temperature. 18C is a relationship diagram of the color rendering index of the light emitted by the light emitting element of FIG. 17 relative to the correlated color temperature, where the white square dots represent the color rendering index of the light B6 emitted by the light emitting module in FIG. 17 and the corresponding correlated color temperature. Referring to FIGS. 17, 18A, 18B, and 18C, the light source device 600 a in this embodiment is similar to the light source device 600 in FIG. 15, and the main differences therebetween are as follows. In this embodiment, the light emitting module 610a includes a plurality of light emitters E11a, E12a, E2a, E3a, E4a, E5a, E6a, and E7a, which respectively emit sub-beams of different wavelength ranges V11a, V12a, V2a, V3a, V4a , V5a, V6a and V7a, and the sub-beams V11a, V12a, V2a, V3a, V4a, V5a, V6a and V7a constitute the light B6 provided by the light emitting module 610a. In this embodiment, the light emitters E11a, E2a, E3a, E4a, E5a, E6a, and E7a are light-emitting diode chips, and the light emitter E12a is a phosphor. Furthermore, the light emitter E11a and the light emitter E12a constitute a light emitter E1a, where the light emitter E12a is, for example, a pale yellow-green (lime color) phosphor. When the sub-rays V11a emitted by the light emitter E11a irradiate the light emitter E12a, the light emitter E12a converts the sub-rays V11a into sub-rays V12a. The sub-ray V12a and the unconverted sub-ray V11a form a sub-ray V1a. In this embodiment, nearly all of the sub-rays V11a are converted into sub-rays V12a by the light emitter E12a, and the unconverted sub-rays V11a can be ignored, so the sub-rays V1a can be regarded as having a yellowish green color.

In this embodiment, the peak wavelength of the sub-ray V1a falls within the range of 550 nm to 560 nm, the peak wavelength of the sub-ray V2a falls within the range of 440 nm to 450 nm, and the peak wavelength of the sub-ray V3a Falls within the range of 460 nm to 470 nm, the peak wavelength of the sub-ray V4a falls within the range of 490 nm to 500 nm, and the peak wavelength of the sub-ray V5a falls within the range of 520 nm to 530 nm , The sub-ray V6a falls within the range of 610 nm to 620 nm, and the peak wavelength of the sub-ray V7a falls within the range of 650 nm to 670 nm. Furthermore, for example, the half-height width of the sub-ray V1a is 93 nm, the half-height width of the sub-ray V2a is 16 nm, the half-height width of the sub-ray V3a is 20 nm, and the half-height width of the sub-ray V4a It is 22 nm, the half-height width of the sub-ray V5a is 28 nm, the half-height width of the sub-ray V6a is 14 nm, and the half-height width of the sub-ray V7a is 15 nm.

The control unit 620 is used to change the sub-lights V1a, V2a, V3a, V4a, V5a, V6a, and V7a by changing the current or voltage applied to the light emitters E11a, E2a, E3a, E4a, E5a, E6a, and E7, respectively. The ratio of the intensity, so the light B6 can be switched between a variety of first rays, a variety of second rays, a variety of third rays, and a variety of fourth rays. In this embodiment, the ratio of the sub-rays V1a, V2a, V3a, V4a, V5a, V6a, and V7a is changed by the pulse width modulation of the light emitters E11a, E2a, E3a, E4a, E5a, E6a, and E7a. For example, as shown in FIG. 18B, when the physiological stimulation value of the light B6 is 0.7, the correlated color temperature of the light B6 can be modulated by the control unit 620 to perform pulse width modulation in the range of 2700 K to 6500 K . When the color rendering index of the light B6 is 93, the correlated color temperature of the light B6 can be modulated in the range of 2700 K to 6500 K by the control unit 620 performing pulse width modulation. In addition, when the correlated color temperature of the light B6 is 6000 K, the physiological stimulation value of the light B6 can be modulated within the range of 0.62 to 1.4 by the control unit 620 performing pulse width modulation. When the correlated color temperature of the light B6 is 6000 K, the color rendering index of the light B6 can be modulated in the range of 1 to 98 by the control unit 620 performing pulse width modulation. In this embodiment, the Duv values of the first rays, the second rays, the third rays, and the fourth rays are all less than 0.005.

FIGS. 19A to 19D are graphs of the circadian rhythm effect factor of the light emitted by the light emitting module of FIG. 17 with respect to the correlated color temperature when the color rendering index is greater than 80, 90, 93, and 95, respectively. 17, 18B, and 19A to 19D, the control unit 620 can also switch the light B6 emitted by the light emitting module 610a between a variety of fourth rays, and the circadian rhythm action factors (ie, physiological stimulation values) of the plurality of fourth rays include or It is substantially the same as the circadian action factor of sunlight in a range of correlated color temperatures, where the range of correlated color temperatures is, for example, 3000 K to 6500 K. The gray square dots and gray lines in FIGS. 18B and 19A to 19D represent the circadian rhythm effect factors corresponding to the correlated color temperature of sunlight, respectively, and all the black square dots in FIGS. 18B and 19A to 19D represent the corresponding The factor of the circadian rhythm of the correlated color temperature of the fourth light. In FIGS. 18B, 19A, and 19B, the circadian rhythm effect factors (such as physiological stimulus values) of the multiple fourth rays are included in the day and night of the sunlight within this correlated color temperature range (such as the correlated color temperature range from 3000 K to 6500 K) Rhythm factor. In the embodiment of FIG. 19A, the color rendering indexes of the multiple fourth rays are all greater than 80. In addition, in FIGS. 19C and 19D, the circadian rhythm factor (ie, physiological stimulus value) of the multiple fourth rays is substantially equal to the sun in this correlated color temperature range (for example, the correlated color temperature range from 3000 K to 6500 K) The circadian rhythm action factor of light, where "the circadian rhythm action factor (ie physiological stimulus value) of these multiple fourth rays is substantially equal to the circadian rhythm action factor of sunlight" refers to the circadian rhythm action factor of this multiple fourth rays The deviation of the factor from the circadian rhythm effect factor of sunlight in the corresponding correlated color temperature falls within ±20% of the circadian rhythm factor of the corresponding correlated color temperature, preferably within the corresponding correlated color temperature Within 10% of the circadian rhythm factor.

20 is a schematic diagram illustrating a light source device according to another embodiment of the present disclosure. FIG. 21A is a spectrum of sub-rays emitted by the light emitter of FIG. 20, and FIG. 21B is a circadian rhythm of light emitted by the light-emitting module of FIG. Diagram of the relationship between the acting factor and the correlated color temperature. 21C is a graph of the color rendering index of the light emitted by the light emitting module of FIG. 20 relative to the correlated color temperature, where the white square dots represent the color rendering index of the light B6 emitted by the light emitting module in FIG. 20 and its corresponding correlation Color temperature. 20 and 21A to 21C, the light source device 600b in this embodiment is similar to the light source device 600a in FIG. 17, and the main differences therebetween are as follows. In this embodiment, the light emitter E1b is used to replace the light emitter E1a of FIG. 17. The light emitter E1b is, for example, a light-emitting diode wafer, and the peak wavelength of the sub-ray V1b emitted through the light emitter E1a falls within the range of 550 nm to 560 nm. For example, the half-height width of the sub-ray V1b is 28 nm.

The control unit 620 is used to change the sub-lights V1b, V2a, V3a, V4a, V5a, V6a, and V7a by changing the current and voltage applied to the light emitters E1b, E2a, E3a, E4a, E5a, E6a, and E7a, respectively. The ratio of the intensity, so the light B6 can be switched between a variety of first rays, a variety of second rays, a variety of third rays, and a variety of fourth rays. In this embodiment, the ratio of the sub-rays V1b, V2a, V3a, V4a, V5a, V6a, and V7a is changed by the pulse width modulation of the light emitters E1b, E2a, E3a, E4a, E5a, E6a, and E7a. For example, as shown in FIG. 21B, when the physiological stimulus value of the light B6 is 0.4, the correlated color temperature of the light B6 can be modulated in the range of 2700 K to 6500 K by the control unit 620 performing pulse width modulation. When the color rendering index of the light B6 is 90, the correlated color temperature of the light B6 can be modulated by the control unit 620 by performing pulse width modulation in the range of 2700 K to 6500 K. In addition, when the correlated color temperature of the light B6 is 6000 K, the physiological stimulation value of the light B6 can be modulated within a range of 0.4 to 1.4 by the control unit 620 performing pulse width modulation. When the correlated color temperature of the light B6 is 6000 K, the color rendering index of the light B6 can be modulated within a range of 1 to 92 by the control unit 620 performing pulse width modulation. In this embodiment, the Duv values of the first rays, the second rays, the third rays, and the fourth rays are all less than 0.005.

22A and 22B are graphs showing the relationship between the circadian rhythm effect factor of the light emitted from the light emitting module of FIG. 20 and the correlated color temperature when the color rendering index is greater than 80 and 90, respectively. 20, 21B, 22A, and 22B, the control unit 620 can also switch the light B6 emitted by the light-emitting module 610b between a variety of fourth rays, and the circadian rhythm action factors (ie, physiological stimulation values) of the various fourth rays include or It is substantially equal to the circadian rhythm effect factor of sunlight in a range of correlated color temperatures, where the range of correlated color temperatures is, for example, 3000 K to 6500 K. The gray dots and gray lines in FIGS. 21B, 22A, and 22B represent multiple circadian rhythm effect factors corresponding to multiple correlated color temperatures of sunlight, respectively, and all black square dots in FIGS. 21B, 22A, and 22B represent Multiple circadian rhythm action factors corresponding to multiple correlated color temperatures of the multiple fourth rays, respectively. In FIGS. 21B and 22A, the circadian rhythm action factors (ie physiological stimulus values) of the multiple fourth rays include the circadian rhythm action factors of sunlight in a range of correlated color temperatures (for example, from 3000 K to 6500 K) . In addition, in FIG. 22B, the circadian rhythm effect factors (such as physiological stimulus values) of the multiple fourth rays are substantially the same as the day and night of sunlight in this correlated color temperature range (such as the correlated color temperature range from 3000 K to 6500 K) Rhythm action factor, where "the circadian rhythm action factor (such as physiological stimulus value) of the multiple fourth rays is substantially the same as the circadian rhythm action factor of the sunlight" refers to the circadian rhythm action factor of the multiple fourth rays The deviations of the circadian rhythm action factor of sunlight in the correlated color temperature are respectively ±20% of the corresponding circadian rhythm action factor of the correlated color temperature, preferably ±10% of the corresponding circadian rhythm action factor of the correlated color temperature.

23 is a schematic diagram illustrating a light source device according to another embodiment of the present disclosure. 24A to 24D are spectrums of sub-rays emitted by the light emitters of the four embodiments of FIG. 23. 25A and 25B are diagrams of the relationship between the circadian rhythm action factor of the light emitted by the light-emitting module of FIG. 23 and sunlight with respect to the correlated color temperature. 23 to 25B, the light source device 600c of this embodiment includes a light emitting module 610c and a control unit 620c. The light emitting module 610c is used to provide a light B6c. The control unit 620c is used to change the ratio of a first sub-light V1c to a second sub-light V2c to form light B6c, so the circadian rhythm effect factor of the ray and the correlated color temperature along the circadian rhythm effect factor different from sunlight are relative to The circadian rhythm effect factor of the ray B6c of the trajectory of the correlated color temperature (for example, the dotted line in FIG. 25A) changes with respect to the trajectory of the correlated color temperature (for example, the curve formed by the triangle or circle in FIG. 25A), in which the first The coordinate of the circadian rhythm action factor relative to the correlated color temperature of one of the sub-ray V1c and the second sub-ray V2c falls below the locus of the circadian rhythm action factor of the sunlight relative to the correlated color temperature, and the first sub-ray V1c and the second sub-ray The coordinate of the other circadian action factor of the light V2c with respect to the correlated color temperature falls above the locus of the circadian action factor of sunlight with respect to the correlated color temperature. For example, the correlated color temperature of the first sub-ray V1c is lower than the correlated color temperature of the second sub-ray V2c. In FIG. 25A, the coordinate of the circadian rhythm factor at the left end of the curve formed by the triangle in FIG. 25A relative to the correlated color temperature is expressed as the first sub The coordinate of the circadian rhythm action factor of the light V1c relative to the correlated color temperature, and above the locus of the circadian rhythm action factor of sunlight relative to the correlated color temperature, and the circadian rhythm action of the right end of the curve formed by the triangle in FIG. 25A The coordinate of the factor with respect to the correlated color temperature is expressed as the coordinate of the circadian rhythm effect factor of the second sub-ray V2c with respect to the correlated color temperature, and below the locus of the circadian rhythm effect factor of sunlight with respect to the correlated color temperature. In another embodiment, the coordinates of the circadian rhythm factor relative to the correlated color temperature at the left end of the curve formed by the circle in FIG. 25A are expressed as the coordinates of the circadian rhythm factor of the first sub-ray V1c relative to the correlated color temperature , And below the locus of the circadian rhythm action factor of sunlight relative to the correlated color temperature, and the coordinates of the circadian rhythm action factor relative to the correlated color temperature at the right end of the curve formed by the circle in FIG. 25A are expressed as the second sub The coordinate of the circadian rhythm action factor of the light V2c relative to the correlated color temperature is above the trajectory of the circadian rhythm action factor of the sunlight relative to the correlated color temperature.

In this embodiment, the light-emitting module 610c includes a plurality of light emitters Elc and E2c, which respectively emit a first sub-beam V1c and a second sub-beam V2c. The light emitters Elc and E2c may each include at least one electroluminescent element, at least one photoluminescent element, or a combination thereof. The electroluminescence element is, for example, a light-emitting diode chip, and the photoluminescence element is, for example, a phosphor. In this embodiment, the first sub-ray V1c and the second sub-ray V2c may be white light. The light emitter Elc may include a plurality of light-emitting diode chips of different colors, such as red light-emitting diode chips, green light-emitting diode chips, and blue light-emitting diode chips, or have at least one type of fluorescent light The at least one light-emitting diode chip of the body is, for example, a blue light-emitting diode chip covered with yellow phosphor. Similarly, the light emitter E2c may include a plurality of light-emitting diode chips of different colors, such as red light-emitting diode chips, green light-emitting diode chips, and blue light-emitting diode chips, or may have at least At least one light-emitting diode chip of a phosphor is, for example, a blue light-emitting diode chip covered by a yellow phosphor. FIG. 24A illustrates the spectrum of the first sub-ray V1c and the second sub-ray V2c in one embodiment, and FIG. 24B illustrates the spectrum of the first sub-ray V1c and the second sub-ray V2c in another embodiment. In the embodiment of FIG. 24A, the coordinate of the circadian rhythm factor of the first sub-ray V1c with respect to the correlated color temperature (that is, the coordinate of the left end point of the curve formed by the circle in FIG. 25A) falls on the day and night of sunlight The rhythm factor is below the trajectory of the correlated color temperature, and the circadian rhythm factor of the second sub-ray V2c falls relative to the coordinate of the correlated color temperature (that is, the coordinate of the right end of the curve formed by the circle in FIG. 25A) Above the trajectory of sunlight's circadian rhythm factor relative to the correlated color temperature. Therefore, relative to sunlight, light B6c can be adjusted to have a low correlated color temperature and a low circadian rhythm effect factor, especially at night to maintain the user’s natural physiological cycle while providing sufficient light sources, and relative to sunlight, it can be It is adjusted to have high correlated color temperature and high circadian rhythm effect factor to promote the user's work.

On the other hand, in the embodiment of FIG. 24B, the coordinates of the circadian rhythm effect factor of the first sub-ray V1c with respect to the correlated color temperature (that is, the coordinates of the left end point of the curve formed by the triangle in FIG. 25A) fall on the sun The circadian rhythm factor of light is above the trajectory of the correlated color temperature, and the circadian rhythm factor of the second sub-ray V2c is relative to the coordinate of the correlated color temperature (that is, the coordinate of the right end of the curve formed by the triangle in FIG. 25A ) Falls below the trajectory of the circadian action factor of sunlight relative to the correlated color temperature. Therefore, relative to sunlight, light B6c can be adjusted to have a low correlated color temperature and a high circadian rhythm effect factor to promote the user's work at low correlated color temperature, and relative to sunlight, can be adjusted to have a high correlated color temperature and Low circadian rhythm effect factor to maintain the user's natural physiological cycle at high correlated color temperature.

24C and 24D illustrate the spectra of the first sub-ray V1c and the second sub-ray V2c in two other embodiments. In the embodiment of FIG. 24C, the coordinate of the circadian rhythm factor of the first sub-ray V1c with respect to the correlated color temperature (that is, the coordinate of the left end point of the curve formed by the square in FIG. 25B) falls on the circadian rhythm of sunlight The action factor is below the trajectory of the correlated color temperature, and the coordinate of the circadian rhythm action factor of the second sub-ray V2c relative to the correlated color temperature (ie, the coordinate of the right end point of the curve formed by the square in FIG. 25B) also falls at The circadian action factor of sunlight is below the trajectory of the correlated color temperature. Therefore, when the correlated color temperature is adjusted, the light B6c always has a low circadian rhythm effect factor relative to sunlight to always maintain the user's natural physiological cycle.

On the other hand, in the embodiment of FIG. 24D, the coordinates of the circadian rhythm factor of the first sub-ray V1c with respect to the correlated color temperature (that is, the coordinates of the left end point of the curve formed by the star in FIG. 25B) fall at The circadian rhythm action factor of sunlight is above the trajectory of the correlated color temperature, and the circadian rhythm action factor of the second sub-ray V2c is relative to the coordinate of the correlated color temperature (that is, the right end point of the curve formed by the star in FIG. 25B ) Also falls above the trajectory of sunlight's circadian rhythm factor relative to the correlated color temperature. Therefore, when the correlated color temperature is adjusted, the light ray B6c always has a high circadian rhythm effect factor relative to sunlight to always promote the user's work.

Table 3 below illustrates the optical data for the first and second sub-rays V1c and V2c with different ratios. table 3

In Table 3, the ratio of PWM1 to PWM2 refers to the ratio of the duty cycle of the pulse width modulation of the light emitters E1c and E2c, which is the ratio of the intensity of the first sub-ray V1c and the second sub-ray V2c. In addition, x and y in Table 3 refer to the x and y chromaticity coordinates on the CIE 1931 color space chromaticity diagram.

FIG. 26 is a schematic diagram illustrating a light source device according to another embodiment of the present disclosure. 27A and 27B are the spectrum of the sub-rays emitted by the light emitters of the two embodiments of FIG. 26. 28A and 28B are diagrams of the relationship between the circadian rhythm effect factor of the light emitted by the light-emitting module of FIG. 26 and sunlight relative to the correlated color temperature. Please refer to FIGS. 26 to 28B. The light source device 600d of FIG. 26 is similar to the light source device 600c of FIG. 23, and the main differences therebetween are as follows. In this embodiment, the light emitting module 610d of the light source device 600d further includes a light emitter E3d that emits a third sub-light V3d. The light emitter E3d may include at least one electroluminescent element, at least one photoluminescent element or Its combination. The electroluminescence element is, for example, a light-emitting diode chip, and the photoluminescence element is, for example, a phosphor. In this embodiment, the third sub-ray V3d may be white light. The light emitter E3d may include a plurality of light-emitting diode chips of different colors, such as red light-emitting diode chips, green light-emitting diode chips and blue light-emitting diode chips, or have at least one type of fluorescent light The at least one light-emitting diode chip of the body is, for example, a blue light-emitting diode chip covered with yellow phosphor.

In this embodiment, the control unit 620c is used to change the ratio of the first sub-ray V1c, the second sub-ray V2c and the third sub-ray V3d to form the ray B6d, so the circadian rhythm effect factor of the ray B6d is relative to the coordinate of the relevant color temperature It changes between a region of three vertices Q1, Q2, and Q3 having coordinates of the circadian rhythm acting factors relative to the correlated color temperature at the first sub-ray V1c, the second sub-ray V2c, and the third sub-ray V3d, respectively.

FIG. 27A illustrates the spectrum of the first sub-ray V1c, the second sub-ray V2c and the third sub-ray V3d of one embodiment, and FIG. 27B illustrates the first sub-ray V1c, the second sub-ray V2c and the first The spectrum of three sub-rays V3d. Further, FIG. 28A corresponds to the embodiment of FIG. 27A, and FIG. 28B corresponds to the embodiment of FIG. 27B. In the embodiment of FIG. 27A, the correlated color temperature of the first sub-ray V1c (that is, the correlated color temperature of the vertex Q1) is lower than the correlated color temperature of the second sub-ray V2c (that is, the correlated color temperature of the vertex Q2), and the correlated color temperature of the third sub-ray V3d (Ie the correlated color temperature of vertex Q3) is lower than the correlated color temperature of second sub-ray V2c (ie the correlated color temperature of vertex Q2). Furthermore, the coordinate of the circadian rhythm factor of the first sub-ray V1c relative to the correlated color temperature (that is, the coordinate of the vertex Q1) and the coordinate of the circadian rhythm factor of the third sub-ray V3d relative to the correlated color temperature (that is, the coordinate of the vertex Q3) They are on opposite sides of the circadian rhythm factor of sunlight relative to the trajectory of the correlated color temperature. In this embodiment, the coordinate of the circadian rhythm factor of the first sub-ray V1c with respect to the correlated color temperature (that is, the coordinate of the vertex Q1) falls below the trajectory of the circadian rhythm factor of the sunlight with respect to the correlated color temperature. The coordinate of the circadian rhythm factor of the light V2c relative to the correlated color temperature (that is, the coordinate of the vertex Q2) falls above the trajectory of the circadian rhythm factor of the sunlight relative to the correlated color temperature, and the circadian rhythm factor of the third sub-ray V3d The coordinate of the correlated color temperature (that is, the coordinate of the vertex Q3) falls above the trajectory of the circadian rhythm effect factor of the sunlight relative to the correlated color temperature.

In the embodiment of FIG. 27B, the correlated color temperature of the first sub-ray V1c (that is, the correlated color temperature of the vertex Q1) is lower than the correlated color temperature of the second sub-ray V2c (that is, the correlated color temperature of the vertex Q2), and the correlated color temperature of the third sub-ray V3d (Ie, the correlated color temperature of the vertex Q3) is higher than the correlated color temperature of the first sub-ray V1c (ie, the correlated color temperature of the vertex Q1). Furthermore, the coordinate of the circadian rhythm factor of the second sub-ray V2c with respect to the correlated color temperature (that is, the coordinate of the vertex Q2) and the coordinate of the circadian rhythm factor of the third sub-ray V3d with respect to the correlated color temperature (that is, the coordinate of the vertex Q3) They are on opposite sides of the circadian rhythm factor of sunlight relative to the trajectory of the correlated color temperature. In this embodiment, the coordinate of the circadian rhythm factor of the first sub-ray V1c with respect to the correlated color temperature (that is, the coordinate of the vertex Q1) falls below the trajectory of the circadian rhythm factor of the sunlight with respect to the correlated color temperature. The coordinate of the circadian rhythm factor of the light V2c relative to the correlated color temperature (that is, the coordinate of the vertex Q2) falls above the trajectory of the circadian rhythm factor of the sunlight relative to the correlated color temperature, and the circadian rhythm factor of the third sub-ray V3d The coordinates of the correlated color temperature (that is, the coordinates of the vertex Q3) fall below the trajectory of the circadian rhythm effect factor of the sunlight relative to the correlated color temperature.

Table 4 below shows the optical data for the first sub-ray V1c, the second sub-ray V2c and the third sub-ray V3d with different ratios. Table 4

In Table 4, the ratio of (PWM1):(PWM2):(PWM3) refers to the ratio of the duty cycle of the pulse width modulation of the light emitters E1c, E2c and E3d, which is about the first sub-ray V1c, the second The ratio of the intensity of the sub-ray V2c to the third sub-ray V3d. Furthermore, x and y in Table 4 refer to the x and y color coordinates of the CIE 1931 color space chromaticity diagram.

FIG. 29 is a schematic diagram illustrating a light source device according to another embodiment of the present disclosure. FIG. 30 is a spectrum of the sub-rays emitted from the light emitter of FIG. 29. FIG. FIG. 31 is a relationship diagram of the circadian rhythm action factor of the light emitting module of FIG. 29 and sunlight with respect to the correlated color temperature. Please refer to FIGS. 29 to 31. The light source device 600e of FIG. 29 is similar to the light source device 600d of FIG. 26, and the main differences therebetween are as follows. In this embodiment, the light emitting module 610e of the light source device 600e further includes a light emitter E4e that emits a fourth sub-ray V4e. The light emitter E4e may include at least one electroluminescent element, at least one photoluminescent element or combination. The electroluminescence element is, for example, a light-emitting diode chip, and the photoluminescence element is, for example, a phosphor. In this embodiment, the fourth sub-ray V4e may be white light. The light emitter E4e may include a plurality of light-emitting diode chips of different colors, such as red light-emitting diode chips, green light-emitting diode chips and blue light-emitting diode chips, or have at least one type of fluorescent light The at least one light-emitting diode chip of the body is, for example, a blue light-emitting diode chip covered with yellow phosphor.

In this embodiment, the controller 620c is used to change the ratio of the first sub-ray V1c, the second sub-ray V2c, the third sub-ray V3d and the fourth sub-ray V4e to form the ray B6e, so the circadian rhythm effect factor of the ray B6e The coordinates with respect to the correlated color temperature have four vertices Q1 having coordinates with respect to the correlated color temperature at the circadian rhythm effect factors at the first sub-ray V1c, the second sub-ray V2c, the third sub-ray V3d, and the fourth sub-ray V4e, respectively. Changes between Q2, Q3 and Q4.

FIG. 30 illustrates the spectra of the first sub-ray V1c, the second sub-ray V2c, the third sub-ray V3d, and the fourth sub-ray V4e of FIG. 29. In this embodiment, the correlated color temperature of the first sub-ray V1c (that is, the correlated color temperature of the vertex Q1) is lower than the correlated color temperature of the second sub-ray V2c (that is, the correlated color temperature of the vertex Q2), and lower than that of the fourth sub-ray V4e The correlated color temperature (ie the correlated color temperature of vertex Q4), and the correlated color temperature of the third sub-ray V3d (ie the correlated color temperature of vertex Q3) is lower than the correlated color temperature of the second sub-ray V2c (ie the correlated color temperature of vertex Q2) The correlated color temperature of the fourth sub-ray V4e (that is, the correlated color temperature of the vertex Q4). The coordinates of the circadian rhythm factor of the first sub-ray V1c with respect to the correlated color temperature (that is, the coordinate of the vertex Q1) and the coordinates of the circadian rhythm factor of the third sub-ray V3d with respect to the correlated color temperature (that is, the coordinate of the vertex Q3) are respectively in the sun The circadian rhythm action factor of light relative to both sides of the trajectory of the correlated color temperature, the circadian rhythm action factor of the second sub-ray V2c relative to the correlated color temperature (that is, the coordinate of the vertex Q2) and the circadian rhythm effect of the fourth sub-ray V4e The coordinates of the factor with respect to the correlated color temperature (that is, the coordinate of the vertex Q4) are respectively on opposite sides of the trajectory of the circadian rhythm effect factor of the sunlight with respect to the correlated color temperature. In this embodiment, the coordinate of the circadian rhythm factor of the first sub-ray V1c with respect to the correlated color temperature (that is, the coordinate of the vertex Q1) falls below the trajectory of the circadian rhythm factor of the sunlight with respect to the correlated color temperature. The coordinate of the circadian rhythm factor of the light V2c relative to the correlated color temperature (that is, the coordinate of the vertex Q2) falls above the trajectory of the circadian rhythm factor of the sunlight relative to the correlated color temperature, and the circadian rhythm factor of the third sub-ray V3d The coordinate of the correlated color temperature (that is, the coordinate of the vertex Q3) falls above the trajectory of the circadian rhythm effect factor of sunlight relative to the correlated color temperature, and the coordinate of the circadian rhythm factor of the fourth sub-ray V4e relative to the correlated color temperature (i.e., vertex Q4) The coordinates of) fall below the trajectory of the circadian action factor of sunlight relative to the correlated color temperature.

Table 5 below shows the optical data for the first sub-ray V1c, the second sub-ray V2c, the third sub-ray V3d and the fourth sub-ray V4e with different ratios. table 5

In Table 5, the ratio of (PWM1):(PWM2):(PWM3):(PWM4) refers to the ratio of the duty cycle of the pulse width modulation of the light emitters E1c, E2c, E3d and E4e, which is about the first The ratio of the intensity of the sub-ray V1c, the second sub-ray V2c, the third sub-ray V3d and the fourth sub-ray V4e. Furthermore, x and y in Table 5 refer to the x and y color coordinates of the CIE 1931 color space chromaticity diagram.

FIG. 32 is a spectrum of sub-rays emitted from the light emitter of another embodiment of FIG. 23. 33 is a graph showing the relationship between the circadian rhythm effect factor and the correlated color temperature of the light emitted by the light-emitting module of FIG. 32. FIG. 34A is a relationship diagram of the blue light hazard of the light emitted by the light emitting module of the embodiment of FIG. 32 relative to the correlated color temperature when the correlated color temperature is greater than 5000 K. FIG. 34B is a graph showing the relationship between the blue light hazard and the color rendering index of the light emitted by the light emitting module of the embodiment of FIG. 32 when the correlated color temperature is greater than 5000 K. Please refer to FIG. 23 and FIGS. 32 to 34B. The embodiment of FIG. 32 is similar to the embodiment of FIG. 24A, and the main differences therebetween are as follows. In this embodiment, the controller 620c is used to change the ratio of the first sub-light V1c and the second sub-light V2c to form the light B6c. Therefore, the correlated color temperature and blue light hazard of the light B6c are changed. At the same correlated color temperature, The blue light hazard of light B6c is changeable. For example, a straight line in FIG. 34A represents the coordinate point (ie, diamond point) of the blue light hazard with respect to the related color temperature that can pass through multiple rays of light B6c with different blue light hazards at the same correlated color temperature. In this embodiment, the correlated color temperature of the first sub-ray V1c is lower than that of the second sub-ray V2c, and the first sub-ray V1c and the second sub-ray V2c are white light.

Further, in this embodiment, under the same blue light hazard, the color rendering index of the light B6c is variable. For example, a horizontal line in FIG. 34B represents the coordinate point (ie, diamond point) of the blue light hazard with respect to the correlated color temperature that can pass through multiple rays of light B6c with different color rendering indexes under the same blue light hazard. Therefore, when using a blue light hazard, users can select multiple color rendering indexes.

FIG. 35 is a schematic diagram illustrating a light source device according to another embodiment of the present disclosure. FIG. 36A is a spectrum of red sub-rays V1f, green sub-rays V2f, and first blue sub-rays V3f emitted by the light emitters E1f, E2f, and E3f of FIG. 35. FIG. 36B is a spectrum of the red sub-light V1f, the green sub-light V2f, and the second blue sub-light V4f emitted by the light emitters E1f, E2f, and E4f of FIG. 35. 37A is a graph showing the relationship between the circadian rhythm effect factors of the first light rays VB1f and the second light rays VB2f emitted from the light emitters E1f, E2f, and E3f and the light emitters E1f, E2f, and E4f, respectively, with respect to the x-color coordinates. 37B is a graph showing the relationship between the circadian rhythm effect factors of the first light rays VB1f and the second light rays VB2f emitted from the light emitters E1f, E2f, and E3f and the light emitters E1f, E2f, and E4f, respectively, with respect to the y color coordinate. FIG. 38A is a graph showing the blue light hazards of the first light VB1f and the second light VB2f emitted from the light emitters E1f, E2f, and E3f and the light emitters E1f, E2f, and E4f, respectively, with respect to the color rendering index. FIG. 38B is a graph of the blue light hazards of the first light VB1f and the second light VB2f emitted from the light emitters E1f, E2f, and E3f and the light emitters E1f, E2f, and E4f, respectively, with respect to the circadian rhythm action factor.

Please refer to FIGS. 35 to 38B. The light source device 600f of FIG. 35 is similar to the light source device 600c of FIG. 23, and the main differences therebetween are as follows. In this embodiment, the light emitting module 61Of is used to provide a light B6f. The control unit 620f is used to switch the light B6f between a first light VB1f and a second light VB2f, thus changing at least one of the blue light hazard and the circadian rhythm effect factor of the light B6f. FIG. 36A illustrates the spectrum of the first light VB1f, and FIG. 36B illustrates the spectrum of the second light VB2f. In the spectrum of the first light VB1f (refer to FIG. 36A), the peak wavelength of blue light (e.g., 460 nm in FIG. 36A) is greater than The main peak wavelength of blue light in the spectrum of the second light VB2f (see FIG. 36B) (for example, 447 nm in FIG. 36B).

In this embodiment, the first ray VB1f includes a red sub-ray V1f, a green sub-ray V2f and a first blue sub-ray V3f, and the second ray VB2f includes a red sub-ray V1f, green sub-ray V2f and a second The blue sub-ray V4f, the main peak wavelength (for example, 460 nm) in the spectrum of the first blue sub-ray V3f (refer to FIG. 36A) is greater than the main peak in the spectrum of the second blue sub-ray V4f (refer to FIG. 36B) Wavelength (eg 447 nm). The control unit 620f is used to change the ratio of the red sub-ray V1f, the green sub-ray V2f and the first blue sub-ray V3f and to change the ratio of the red sub-ray V1f, the green sub-ray V2f and the second blue sub-ray V4f, so the At least one of the blue light hazard, the circadian rhythm effect factor, and the color rendering index of one light VB1f and the second light VB2f.

In this embodiment, the light emitting module 610f includes a plurality of light emitters E1f, E2f, E3f, and E4f, respectively emitting red sub-beams V1f, green sub-beams V2f, first blue sub-beams V3f, and second blue sub-beams V4f. The light emitters E1f and E2f may each include at least one electroluminescent element, at least one photoluminescent element, at least one color filter, or a combination thereof. The electroluminescence element is, for example, a light-emitting diode chip or an organic light-emitting diode, and the photoluminescence element is, for example, a phosphor. The light source device 600f may be a display, such as an organic light emitting diode display, a liquid crystal display, a micro light emitting diode display, or any other suitable display, and the light emitting module 610f may include a plurality of light emitters E1f, a plurality of light The emitter E2f, the plurality of light emitters E3f and the plurality of light emitters E4f are alternately arranged to form sub-pixels of the display. However, in other embodiments, the light source device 600f may be a lighting fixture.

In this embodiment, as shown in FIGS. 37A and 37B, at the same x and y color coordinates and the same intensity, the circadian rhythm action factor of the first light VB1f is greater than the circadian rhythm action factor of the second light VB2f, so The user can select the first light VB1f or the second light VB2f according to the required circadian rhythm action factor. In this embodiment, as shown in FIG. 38A, under the same blue light hazard, the color rendering index of the first light VB1f is greater than the color rendering index of the second light VB2f. Therefore, the user can use the color rendering index as required Select the first light VB1f or the second light VB2f. Furthermore, in this embodiment, under the same circadian rhythm action factor, the blue light hazard of the first light VB1f is smaller than the blue light hazard of the second light VB2f, therefore, the user can select the first light according to the desired blue light hazard VB1f or the second light VB2f.

In another embodiment, the light emitting module 610f of the light source device 600f may include a light emitter E1f, a light emitter E2f, and a light emitter E3f, which respectively provide a red sub-light V1f, a green sub-light V2f, and a first blue sub-light V3f (that is, blue sub-rays), but does not include the light emitter E4f. Further, the controller 620f is used to change the ratio of the red sub-light V1f, the green sub-light V2f and the first blue sub-light V3f to form different white light (that is, in FIGS. 37A, 37B, 38A and 38B In, the first rays VB1f) corresponding to different optical data respectively. Furthermore, in the present embodiment, the main peak wavelength in the V3f spectrum of the first blue sub-ray falls within the range of 460 nm to 480 nm. In this embodiment, the light source device 600f can provide light B6f with a high circadian rhythm factor and a high color rendering index.

In yet another embodiment, the light emitting module 610f of the light source device 600f may include a light emitter E1f, a light emitter E2f, and a light emitter E4f, which respectively provide a red sub-beam V1f, a green sub-beam V2f, and a second blue sub-beam V4f (that is, blue sub-rays), but does not include the light emitter E3f. Further, the controller 620f is used to change the ratio of the red sub-light V1f, the green sub-light V2f and the second blue sub-light V4f to form different white light (that is, in FIGS. 37A, 37B, 38A and 38B In, the second rays VB2f) corresponding to different optical data respectively. Furthermore, in the present embodiment, the main peak wavelength in the spectrum of the second blue sub-ray V4f falls within the range of 440 nm to 450 nm. In this embodiment, the light source device 600f can provide light B6f having a low circadian rhythm factor and a low color rendering index.

39 is a schematic diagram of a display device according to an embodiment of the present disclosure. Please refer to FIG. 39. The display device 900 of this embodiment includes a display 800 and a backlight element 701. The display 800 may be a liquid crystal display panel or other suitable spatial light modulator. The backlight element 701 may be any one of the light source devices mentioned above, which is used to illuminate the display 800.

FIG. 40 is a schematic diagram illustrating a light source device according to another embodiment of the present disclosure. FIG. 41A is a graph of the relationship between the sub-light provided by the sub-light source of the first light source of FIG. 40 and the circadian rhythm action factor of sunlight relative to the correlated color temperature. FIG. 41B is a spectrum of sub-rays emitted by the sub-light source of FIG. 40. FIG. FIG. 41C is a spectrum of phosphor I, phosphor II, phosphor III, and phosphor IV of the sub-light source of FIG. 40. FIG. FIG. 41D is a spectrum of blue light-emitting diode wafers having peak wavelengths of 443 nm, 458 nm, and 461 nm in the sub-light source of FIG. 40. Referring to FIGS. 40 to 41D, the light source device 700 of this embodiment is similar to the light source device 600c of FIG. 23, and the main differences therebetween are as follows. In this embodiment, the light source device 700 includes a first light source 710 for providing a first light B6g. In this embodiment, the first light source 710 includes a sub-light source E1g, a sub-light source E2g, a sub-light source E3g, and a sub-light source E4g. The sub-light source E1g includes a light emitter E11g and a encapsulated light emitter E11g The light emitter E12g, the sub-light source E2g includes a light emitter E21g and a light emitter E22g covering the light emitter E21g, the sub-light source E3g includes a light emitter E31g and a light emitter covering the light emitter E31g The emitter E32g and the sub-light source E4g include a light emitter E41g and a light emitter E42g covering the light emitter E41g. In this embodiment, the light emitter E11g is a blue light-emitting diode wafer with a peak wavelength of 458 nm, the light emitter E12g has a resin that accounts for 15% of the light emitter E12g and the light emitter E12g 85% of the phosphor, the proportion of the phosphor of the light emitter E12g is 95% of the phosphor III, and the proportion of the phosphor of the light emitter E12g is 5% of the phosphor II. The light emitter E21g is a blue light-emitting diode chip with a peak wavelength of 461 nm, the light emitter E22g has a resin that accounts for 15% of the weight of the light emitter E22g, and a phosphor that accounts for 85% of the light emitter E22g. The proportion of the phosphor of the light emitter E22g is 90% of the phosphor I, and the proportion of the phosphor of the light emitter E22g is 10% of the phosphor IV. The light emitter E31g is a blue light-emitting diode chip with a peak wavelength of 461 nm, the light emitter E32g has a resin that accounts for 12% of the light emitter E32g and a phosphor that accounts for 88% of the light emitter E32g The specific gravity of the phosphor of the light emitter E32g is 95% of the phosphor I, and the specific gravity of the phosphor of the light emitter E32g is 5% of the phosphor IV. The light emitter E41g is a blue light emitting diode chip with a peak wavelength of 443 nm, the light emitter E42g has a resin that accounts for 10% of the weight of the light emitter E42g, and a phosphor that accounts for 90% of the light emitter E42g The specific gravity of the phosphor of the light emitter E42g is 95% of the phosphor I, and the specific gravity of the phosphor of the light emitter E42g is 5% of the phosphor IV.

In this embodiment, the sub-light source E1g emits a sub-ray V1g, the sub-light source E2g emits a sub-ray V2g, the sub-light source E3g emits a sub-ray V3g, and the sub-light source E4g emits a sub-ray V4g. The sub-rays V1g, V2g, V3g, and V4g are, for example, white light, and the sub-rays V1g, V2g, V3g, and V4g are combined to form the first light B6g.

However, in other embodiments, the sub-light sources E1g, E2g, E3g, and E4g may include multiple light-emitting diode chips with different light colors, such as red light-emitting diode chips, green light-emitting diode chips, and blue The light-emitting diode chip is used to emit a red sub-light, a green sub-light and a blue sub-light, which are combined to form white light. In other embodiments, the sub-light sources E1g, E2g, E3g, and E4g may include a plurality of light-emitting diode chips having different light colors and a plurality of light-emitting diodes having different light colors and covering at least one of these light-emitting diodes Phosphor.

In this embodiment, the color rendering index of the first ray B6g is greater than 80, and the coordinates of the circadian rhythm factors of the sub-rays V1g, V2g, V3g, and V4g with respect to the correlated color temperature (CCT, CAF) are shown in FIG. 41A. The sub-rays The spectra of V1g, V2g, V3g, and V4g are shown in FIG. 41B, and the spectra of phosphors I, II, III, and IV are shown in FIG. 41C, with blue peak wavelengths of 443 nm, 458 nm, and 461 nm, respectively. The spectrum of the color light-emitting diode wafer is shown in FIG. 41D.

In this embodiment, the light source device 700 further includes a control unit 720 electrically connected to the light emitters E11g, E21g, E31g and E41g, and used to adjust the ratio of the sub-lights V1g, V2g, V3g and V4g. Therefore, the coordinates of the circadian rhythm factor of the first light B6g relative to the correlated color temperature (CCT, CAF) can be defined as the apex of the circadian rhythm factor of the sub-rays V1g, V2g, V3g, and V4g relative to the correlated color temperature. The coordinates of the circadian rhythm effect factors of the sub-rays V1g, V2g, V3g, and V4g relative to the correlated color temperature (CCT, CAF) in the area A1 (for example, a polygon) are (2700±100 K, 0.24 ), (2700±100 K, 0.53), (6500±300 K, 1.06) and (6500±300 K, 0.788). However, in other embodiments, the first light source 710 may include a sub-light source that emits sub-light rays like the first light B6g, and by adjusting the composition of the phosphor of the sub-light source and the blue light-emitting diode chip For the type, the coordinate of the circadian rhythm effect factor of the first light B6g relative to the correlated color temperature may be any coordinate that falls in the area A1. Furthermore, in other embodiments, the first light source 710 may include two sub-light sources, three sub-light sources, or five or more sub-light sources that emit sub-rays to form the first light B6g, and by adjusting these sub-lights The composition of the phosphor of the light source and the type of the blue light-emitting diode chip, the coordinates of the circadian rhythm effect factor of the first light B6g relative to the correlated color temperature (CCT, CAF) may be any coordinates that fall in the area A1.

In this embodiment, the color rendering indexes of the sub-rays V1g, V2g, V3g, and V4g are, for example, 81, 81, 81, and 84, respectively, and the correlated color temperatures of the sub-rays V1g, V2g, V3g, and V4g are, for example, 2614 K, 2689 K , 6691 K and 6245 K, the circadian rhythm action factors of the sub-rays V1g, V2g, V3g and V4g are 0.242, 0.534, 1.060 and 0.788, respectively, and the Duv values of the sub-rays V1g, V2g, V3g and V4g are 0.01 and − 0.01, -0.00 and -0.01.

In this embodiment, the coordinate of the circadian rhythm effect factor of the first light B6g relative to the correlated color temperature can be anywhere in the area A1, so the light source device 700 can meet various usage requirements.

42 is a graph showing the relationship between the sub-light provided by the sub-light source of the first light source of the light source device according to another embodiment of the present disclosure and the circadian rhythm action factor of sunlight relative to the correlated color temperature. Referring to FIG. 42, the light source device according to this embodiment is similar to the light source device 700 of FIG. 40, and the main differences therebetween are as follows. In this embodiment, the color rendering index of the first light B6g is greater than 60, and the coordinate of the circadian rhythm factor of the first light B6g relative to the correlated color temperature (CCT, CAF) falls as shown in FIG. 42 (2700± The coordinates of the four circadian rhythm action factors of 100 K, 0.696), (2700±100 K, 0.197), (6500±300 K, 0.759) and (6500±300 K, 1.229) relative to the correlated color temperature are formed by the vertices Within an area A2. In the present embodiment, the first ray B6 is formed by four sub-rays having coordinates of the circadian rhythm action factors at the four vertices shown in FIG. 42 with respect to the correlated color temperature. However, in other embodiments, the first light B6g may be one sub-light, two sub-lights, or three or more sub-lights emitted by one sub-light source, two sub-light sources, or three or more sub-light sources The resulting coordinate of the circadian rhythm action factor of the first light B6g relative to the correlated color temperature can be determined by adjusting the composition of the phosphor and the type of the blue light-emitting diode chip of the sub-light source.

43 is a graph showing the relationship between the sub-light provided by the sub-light source of the first light source of the light source device according to another embodiment of the present disclosure and the circadian rhythm action factor of sunlight relative to the correlated color temperature. Referring to FIG. 43, the light source device according to this embodiment is similar to the light source device 700 of FIG. 40, and the main differences therebetween are as follows. In this embodiment, the color rendering index of the first light B6g is not limited, and the coordinates of the circadian rhythm effect factor of the first light B6g relative to the correlated color temperature (CCT, CAF) fall as shown in FIG. 43 ( 2700±100 K, 0.197), (2700±100 K, 0.696), (4500±200 K, 0.474), (4500±200 K, 1.348), (6500±300 K, 0.759) and (6500±300 K, The coordinates of the six circadian rhythm action factors of 1.604) relative to the correlated color temperature are within an area A3 formed by the vertices. However, in other embodiments, the first light B6g may be emitted by one sub-light source, two sub-light sources, or one sub-light source, two sub-light sources, or three or more sub-light sources The coordinate of the circadian rhythm factor of the first light B6g with respect to the correlated color temperature can be determined by adjusting the composition of the phosphor and the type of the blue light-emitting diode chip of the sub-light source.

44 is an upper and lower boundary of the circadian rhythm effect factor of the sub-light provided by the sub-light source of the first light source of the light source device according to another embodiment of the present disclosure relative to the correlated color temperature and the circadian rhythm effect factor of the sunlight Plot of correlated color temperature. Please refer to FIG. 44, the light source device of the embodiment of FIG. 44 is similar to the light source device of the embodiment of FIG. 43, and the main differences therebetween are as follows. In this embodiment, the circadian action factor of the first light B6g relative to the coordinates of the correlated color temperature (CCT, CAF) falls within an area, which has an upper boundary, a lower boundary, and falls between the upper and lower boundaries Between the coordinates. In this embodiment, the upper boundary is established by fitting a quadratic function to the upper three vertices of FIG. 43, and its coefficient of determination R ² is 1, for example. For example, the upper boundary is a function: CAF=-5E-08×(CCT) ² + 0.0007×(CCT)-0.8439. Furthermore, the lower boundary is established by fitting a quadratic function to the lower three vertices of FIG. 43, and its determination coefficient R ² is 1, for example. For example, the lower boundary is a function: CAF=-8E-09×(CCT) ² + 0.0002×(CCT)-0.3804.

45 is a graph showing the relationship between the sub-light provided by the sub-light source of the first light source of the light source device according to another embodiment of the present disclosure and the circadian rhythm action factor of sunlight relative to the correlated color temperature. Referring to FIG. 45, the light source device according to this embodiment is similar to the light source device 700 of FIG. 40, and the main differences therebetween are as follows. In this embodiment, the color rendering index of the first light B6g is greater than 80, and the coordinates of the circadian rhythm effect factor of the first light B6g with respect to the correlated color temperature (CCT, CAF) fall respectively as shown in FIG. 45 (2700 ±100 K, 0.242), (2700±100 K, 0.534), (4500±200 K, 0.580), (4500±200 K, 0.841), (6500±300 K, 0.788) and (6500±300 K, 1.060 ), the coordinates of the six circadian rhythm action factors relative to the correlated color temperature are between a region A4 formed by the vertices. However, in other embodiments, the first light B6g may be emitted by one sub-light source, two sub-light sources, or one sub-light source, two sub-light sources, or three or more sub-light sources The coordinate of the circadian rhythm factor of the first light B6g with respect to the correlated color temperature can be determined by adjusting the composition of the phosphor and the type of the blue light-emitting diode chip of the sub-light source.

In this embodiment, at the same correlated color temperature, the circadian action factor of the first light B6g falls within ±0.15 of the circadian action factor of sunlight.

46 is a graph showing the relationship between the sub-light provided by the sub-light source of the first light source of the light source device according to another embodiment of the present disclosure and the circadian rhythm action factor of sunlight relative to the correlated color temperature. Referring to FIG. 46, the light source device according to this embodiment is similar to the light source device of FIG. 45, and the main differences therebetween are as follows. In this embodiment, the color rendering index of the first light B6g is greater than 60, and the coordinate of the circadian rhythm effect factor of the first light B6 relative to the correlated color temperature (CCT, CAF) falls within the six circadian rhythms shown in FIG. 46 The coordinate of the action factor with respect to the correlated color temperature is within the range of an area A5 formed by the vertices. In the present embodiment, the first ray B6 is formed by six sub-rays each having the coordinates of the circadian rhythm action factor at the six vertices shown in FIG. 46 with respect to the correlated color temperature. However, in other embodiments, the first light B6g may be emitted by one sub-light source, two sub-light sources, or one sub-light source, two sub-light sources, or three or more sub-light sources The coordinate of the circadian rhythm factor of the first light B6g with respect to the correlated color temperature can be determined by adjusting the composition of the phosphor and the type of the blue light-emitting diode chip of the sub-light source.

Please refer to FIG. 23 again. In an embodiment, the light emitter E1c may be the first light source 710 in any one of the embodiments in FIGS. 40 to 46, and the first sub-ray V1c may be any one in FIGS. 40 to 46. In one embodiment, the first light B6g, the light emitter E2c may be a second light source, and the second sub-light V2c may be a second light. The second light source is similar to the first light source 710, and the coordinates of the circadian rhythm factor of the second light with respect to the correlated color temperature (CCT, CAF) may fall in the area A1 of FIG. 41A, the area A2 of FIG. 42, and the area A3 of FIG. 43 , The area defined by the area A4 of FIG. 45, or the area A5 of FIG. 46, or the upper and lower boundaries of FIG. 44, the difference between them is that the circadian action factor of the second light is relative to the coordinate of the correlated color temperature (CCT , CAF) is different from the coordinate of the circadian rhythm factor of the first light B6g with respect to the correlated color temperature (CCT, CAF).

Further, in this embodiment, the control unit 620c is used to control the first light source 710 (ie, the light emitter E1c) and the second light source (ie, the light emitter E2c), and to combine the first light B6g (ie, the first sub The light V1c) and the second light (second sub-light V2c) output a third light (ie light B6c).

In this embodiment, as shown in FIG. 25A, the coordinate of the circadian rhythm effect factor relative to the correlated color temperature (CCT) of one of the first ray B6g (ie, the first sub-ray V1c) and the second ray (ie, the second sub-ray V2c) , CAF) falls below the trajectory of sunlight's circadian rhythm action factor relative to the correlated color temperature, and as shown in Fig. 25A, the first ray B6g (ie the first sub-ray V1c) and the second ray (ie the second sub-ray The coordinates of the other circadian rhythm action factor relative to the correlated color temperature (CCT, CAF) of V2c) fall above the trajectory of the solar circadian rhythm action factor relative to the correlated color temperature.

In an embodiment, the coordinates of the circadian rhythm factor of the third ray (ie, ray B6c) relative to the correlated color temperature (CCT, CAF) fall below the trajectory of the circadian rhythm factor of the sunlight relative to the correlated color temperature, such as FIG. 25A is a circle or triangle below the trajectory of the circadian action factor of sunlight with respect to the correlated color temperature. In another embodiment, the coordinates of the circadian rhythm factor of the third ray (ie, ray B6c) relative to the correlated color temperature fall above the trajectory of the circadian rhythm factor of the sunlight relative to the correlated color temperature, for example, as shown in FIG. 25A in the sun The circular or triangular shape of the circadian action factor of light relative to the trajectory of the correlated color temperature. In yet another embodiment, the coordinate of the circadian rhythm action factor of the third ray (ie, ray B6c) relative to the correlated color temperature falls on the trajectory of the circadian rhythm action factor of the solar light relative to the correlated color temperature, for example, as shown in FIG. 25A in sunlight The circadian rhythm action factor is a circle or triangle on the trajectory relative to the correlated color temperature.

The aforementioned control unit includes, for example, a central processing unit (central processing unit, CPU), a microprocessor, a digital signal processor (DSP), a programmable controller, and a programmable logic device (programmable logic device, PLD) or other similar devices or combinations of these devices, this disclosure is not limited. In addition, in an embodiment, each function of the control unit may be implemented as multiple codes. These codes will be stored in a memory and executed by the control unit. Alternatively, in an embodiment, each function of the control unit may be implemented as one or more circuits. This disclosure does not limit the implementation of the functions of the control unit by software or hardware.

The aforementioned “physiological stimulation value” may be the aforementioned CS/P value, circadian rhythm factor (CAF) or equivalent melanopic lux (EML), where EML=R×(CAF)×(Lux), where, R is a constant. When considering the response strength of CS(λ) and P(λ), R=1.218. When the light source device is a lighting device, Lux may be illuminance, and when the light source device is a display, Lux may be luminance. The CS/P value in the above embodiment can be replaced with a circadian rhythm action factor or equivalent melanin lux. The circadian rhythm action factor in the above embodiment can be replaced with a CS/P value or equivalent melanin lux.

In summary, the light source device in the embodiment of the present disclosure can control the light emitting module through the control unit to provide light with the same color temperature and different physiological stimulation values. The light-emitting module can also provide multiple sets of color temperature light through multiple sets of light-emitting units, and each set of light with the same color temperature can also be switched between lights with different physiological stimulation values. In addition, the light source device in the embodiment of the present disclosure can also control the light-emitting module through the control unit to provide light with a physiological stimulation value difference of more than 5%, and these lights can have completely different color temperatures, or some of the color temperatures of these lights the same. In this way, the light source device can choose to provide light sources with different physiological stimulation values according to the actual use environment, time and purpose, so as to maintain the user's natural physiological cycle and provide sufficient light sources at the same time. The light source device of the present disclosure may be a lighting device used for illumination or a backlight device used as a backlight of a display, but it is not limited thereto.

In addition, in the light source device according to this embodiment, since the color temperatures of the first light and the second light are substantially the same as each other and the spectrums of the first light and the second light are different, when multiple light source devices or light emitting modules are used for the same The display space emits the first light and the second light respectively, the color of the light of the light source device or the light emitting module is the same, and the first light and the second light may respectively achieve different effects.

In addition, in the light source device according to the present embodiment, since the correlated color temperatures of the plurality of first rays are different from each other, and the circadian rhythm action factors of the plurality of first rays are substantially the same as each other, the light source device can have more applications.

In addition, in the light source device according to the embodiment, the ratio of the first sub-ray to the second sub-ray can be changed, so the circadian rhythm effect factor and the correlated color temperature of the light can be along a circadian rhythm different from sunlight The circadian rhythm of the light of the action factor relative to the trajectory of the correlated color temperature changes relative to the trace of the correlated color temperature, so the light source device can have more applications. In the light source device according to the embodiment, the light can be switched between the first light and the second light, so at least one of the blue light hazard of the light and the circadian rhythm action factor can be changed, so the light source device can have more application. According to the light source device of this embodiment, the ratio of the first sub-ray to the second sub-ray can be changed, so the correlated color temperature of the light and the blue light hazard can be changed, where, at the same correlated color temperature, the blue light hazard of the light is Variable, so users can choose the appropriate blue light hazard according to their needs.

Furthermore, in the light source device according to the embodiment, the coordinates of the circadian rhythm action factor relative to the correlated color temperature of the first light emitted by the first light source may fall within a region of the circadian rhythm action factor relative to the correlated color temperature map Any position, so the light source device according to the embodiment can meet various usage requirements.

Although this disclosure has been disclosed as above with examples, it is not intended to limit this disclosure. Anyone who has ordinary knowledge in the technical field can make some changes and retouching without departing from the spirit and scope of this disclosure. The scope of protection of this disclosure shall be subject to the scope defined in the attached patent application.

100, 100a, 100b, 100’, 300, 400, 500, 600, 600a, 600b, 600c, 600d, 600e: light source device 110, 110a, 110b, 310, 410, 510, 610, 610a, 610b, 610c, 610d, 610f: light emitting module 120, 320, 420, 520, 620, 620c, 620f, 720: control unit 130: user interface 140: connection interface 700: Light source device 701: backlight element 710: the first light source 800: display 900: display device A1, A2, A3, A4, A5: area B, B3, B6, B6c, B6d, B6e, B6f: light B6g: the first light D: light emitting unit D1, D1’, D11, D12, D13: the first light-emitting unit D2, D2’: Second light emitting unit D3, D3’, D31, D32: third light emitting unit D4, D4’: fourth light-emitting unit D5, D5’: Fifth light-emitting unit D6’: Sixth light unit D7’: Seventh light unit D8’: Eighth light-emitting unit DM: light source driver module DR: data writing system DT: Time management data E1, E1a, E12a, E11a, E1c, E1f, E2c, E2, E2a, E2f, E3, E3a, E3d, E3f, E4, E4a, E4e, E4f, E5a, E6a, E7a, E11g, E12g, E21g, E22g, E31g, E32g, E41, E41g, E42, E42g: light emitter E1g, E2g, E3g, E4g: sub-light source e1, e2, e3, e4, e5, e6, e7, e8: elliptical color temperature range L1, L1’, L13, L14, L15, VB1f: the first light L2, L2’, L23, L24, L25, VB2f: second light L35: third light L45: fourth light L55: Fifth light L65: sixth light L75: seventh light L85: Eighth light P1, P1’, P13, P14: Part I P2, P2’, P23, P24: Part 2 S1, S2, S3, S4, S5, S6, S7, S8: tolerance quadrilateral color temperature range Q1, Q2, Q3, Q4: vertices SH1, SL1: Spectral curve SV: storage unit UR: user V1, V1a, V1g, V2g, V3g, V4g, V11a, V12a, V2, V2a, V3, V3a, V4, V4a, V41, V42, V5a, V6a, V7a: sub-rays V1c, W1, W1’: the first sub-ray V1f: red sub-ray V2c, W2, W2’: second sub-ray V2f: green sub-ray V3d, W3, W3’: the third sub-ray V3f: the first blue sub-ray V4e, W4, W4’: the fourth sub-ray V4f: second blue sub-ray W5, W5’: Fifth sub-ray W6’: sixth sub-ray W7’: seventh sub-ray W8’: Eighth sub-ray

FIG. 1 illustrates a curve corresponding to a light source and physiological stimuli. 2A is a schematic diagram of a light source device in an embodiment of the present disclosure. FIG. 2B is a variation of the light source device in the embodiment of FIG. 2A. FIG. 2C is a spectrum diagram of relative light intensity and light wavelength of light emitted by the light source device in the embodiment of FIG. 2B. FIG. 2D illustrates a timing diagram of the light source device in the embodiment of FIG. 2B having different lighting modes at different periods. 2E is a block diagram of the light source device according to FIG. 2A. FIG. 3 is a schematic diagram of the color coordinate pattern of the same color temperature defined by the American National Standards Institute. 4A is a schematic diagram of a light source device in another embodiment of the present disclosure. FIG. 4B illustrates the spectral curve of the first light in the embodiment of FIG. 4A. FIG. 4C illustrates the spectral curve of the second light in the embodiment of FIG. 4A. FIG. 4D illustrates a timing diagram of the light source device in the embodiment of FIG. 4A having different lighting modes at different periods. FIG. 5A is a schematic diagram of a light source device in still another embodiment of the present disclosure. FIG. 5B illustrates the spectral curve of the first light in the embodiment of FIG. 5A. FIG. 5C illustrates the spectral curve of the second light in the embodiment of FIG. 5A. FIG. 5D illustrates a timing diagram of the light source device in the embodiment of FIG. 5A having different lighting modes at different periods. 6A is a schematic diagram of a light source device in still another embodiment of the present disclosure. 6B to 6I illustrate the spectral curves of the light provided by the light source device 500 under various color temperature conditions. FIG. 6J illustrates a timing diagram of the light source device in the embodiment of FIG. 6A having different lighting modes at different periods. 7 is a schematic diagram of a light source device according to another embodiment of the present disclosure. FIG. 8A illustrates the spectra of the light emitted from the light emitting unit and the first light in the first light emitting mode in FIG. 7 respectively. FIG. 8B illustrates the spectrums of the light emitted from the light emitting unit and the second light in the second light emitting mode in FIG. 7 respectively. FIG. 9 illustrates the color coordinates of the first and second rays in FIG. 7 in the CIE 1976 u’-v’ diagram (CIE 1976 u’-v’ diagram). 10 is a schematic diagram of a light source device according to another embodiment of the present disclosure. FIG. 11A illustrates the spectra of the light emitted from the light emitting unit and the first light in the first light emitting mode in FIG. 10 respectively. FIG. 11B is a graph showing the spectra of the light emitted from the light emitting unit and the second light in the second light emitting mode in FIG. 10 respectively. Fig. 12 illustrates the color coordinates of the first and second rays in Fig. 10 in the CIE 1976 u'-v' diagram. FIG. 13A is a diagram illustrating the spectrum of the light emitted from the light emitting unit and the first light in the first light emitting mode in FIG. 10 according to another embodiment of the present disclosure. FIG. 13B illustrates the spectrum of the light and the second light respectively emitted from the light emitting unit in the second light emitting mode in FIG. 10 according to another embodiment of the present disclosure. FIG. 14 illustrates the color coordinates of the first light and the second light in FIG. 10 in the CIE 1976 u’-v’ diagram according to another embodiment of the present disclosure. 15 is a schematic diagram of a light source device according to another embodiment of the present disclosure. 16A is a spectrum of the sub-rays emitted by the light emitter of FIG. FIG. 16B is a relationship diagram of the circadian rhythm action factor of the light emitted by the light emitting module of FIG. 15 with respect to the correlated color temperature. 16C is a relationship diagram of the color rendering index of the light emitted by the light emitting module of FIG. 15 with respect to the correlated color temperature. Fig. 16D is a graph showing the relationship between the circadian rhythm factor of sunlight and the correlated color temperature. FIG. 17 is a schematic diagram of a light source device according to another embodiment of the present disclosure. 18A is a spectrum of the sub-rays emitted by the light emitter of FIG. FIG. 18B is a relationship diagram of the circadian rhythm factor of the light emitted by the light emitting module of FIG. 17 with respect to the correlated color temperature. 18C is a graph showing the color rendering index of light emitted from the light-emitting element of FIG. 17 with respect to the correlated color temperature. FIGS. 19A to 19D are graphs of the circadian rhythm factor of the light emitted from the light emitting module of FIG. 17 with respect to the correlated color temperature when the color rendering index is greater than 80, 90, 93, and 95, respectively. FIG. 20 is a schematic diagram of a light source device according to another embodiment of the present disclosure. FIG. 21A is a spectrum of the sub-rays emitted by the light emitter of FIG. 20. FIG. FIG. 21B is a relationship diagram of the circadian rhythm factor of the light emitted by the light emitting module of FIG. 20 with respect to the correlated color temperature. FIG. 21C is a relationship diagram of the color rendering index of the light emitted by the light emitting module of FIG. 20 relative to the correlated color temperature. 22A and 22B are graphs showing the relationship between the circadian rhythm effect factor of the light emitted from the light emitting module of FIG. 20 and the correlated color temperature when the color rendering index is greater than 80 and 90, respectively. 23 is a schematic diagram illustrating a light source device according to another embodiment of the present disclosure. 24A to 24D are spectrums of sub-rays emitted by the light emitters of the four embodiments of FIG. 23. 25A and 25B are diagrams of the relationship between the circadian rhythm action factor of the light emitted by the light-emitting module of FIG. 23 and sunlight with respect to the correlated color temperature. FIG. 26 is a schematic diagram illustrating a light source device according to another embodiment of the present disclosure. 27A and 27B are the spectrum of the sub-rays emitted by the light emitters of the two embodiments of FIG. 26. 28A and 28B are diagrams of the relationship between the circadian rhythm effect factor of the light emitted by the light-emitting module of FIG. 26 and sunlight relative to the correlated color temperature. FIG. 29 is a schematic diagram illustrating a light source device according to another embodiment of the present disclosure. FIG. 30 is a spectrum of the sub-rays emitted from the light emitter of FIG. 29. FIG. FIG. 31 is a relationship diagram of the circadian rhythm action factor of the light emitting module of FIG. 29 and sunlight with respect to the correlated color temperature. FIG. 32 is a spectrum of sub-rays emitted from the light emitter of another embodiment of FIG. 23. 33 is a graph showing the relationship between the color rendering index of the light emitted by the light emitting module of the embodiment of FIG. 32 and the correlated color temperature. FIG. 34A is a relationship diagram of the blue light hazard of the light emitted by the light emitting module of the embodiment of FIG. 32 relative to the correlated color temperature when the correlated color temperature is greater than 5000 K. FIG. 34B is a graph showing the relationship between the blue light hazard and the color rendering index of the light emitted by the light emitting module of the embodiment of FIG. 32 when the correlated color temperature is greater than 5000 K. FIG. 35 is a schematic diagram illustrating a light source device according to another embodiment of the present disclosure. FIG. 36A is a spectrum of red sub-rays V1f, green sub-rays V2f, and first blue sub-rays V3f emitted by the light emitters E1f, E2f, and E3f of FIG. 35. FIG. 36B is a spectrum of the red sub-light V1f, the green sub-light V2f, and the second blue sub-light V4f emitted by the light emitters E1f, E2f, and E4f of FIG. 35. 37A is a graph showing the relationship between the circadian rhythm effect factors of the first light rays VB1f and the second light rays VB2f emitted from the light emitters E1f, E2f, and E3f and the light emitters E1f, E2f, and E4f, respectively, with respect to the x-color coordinates. 37B is a graph showing the relationship between the circadian rhythm effect factors of the first light rays VB1f and the second light rays VB2f emitted from the light emitters E1f, E2f, and E3f and the light emitters E1f, E2f, and E4f, respectively, with respect to the y color coordinate. FIG. 38A is a graph showing the blue light hazards of the first light VB1f and the second light VB2f emitted from the light emitters E1f, E2f, and E3f and the light emitters E1f, E2f, and E4f, respectively, with respect to the color rendering index. FIG. 38B is a graph of the blue light hazards of the first light VB1f and the second light VB2f emitted from the light emitters E1f, E2f, and E3f and the light emitters E1f, E2f, and E4f, respectively, with respect to the circadian rhythm action factor. 39 is a schematic diagram of a display device according to an embodiment of the present disclosure. FIG. 40 is a schematic diagram illustrating a light source device according to another embodiment of the present disclosure. FIG. 41A is a graph of the relationship between the sub-light provided by the sub-light source of the first light source of FIG. 40 and the circadian rhythm action factor of sunlight relative to the correlated color temperature. FIG. 41B is a spectrum of sub-rays emitted by the sub-light source of FIG. 40. FIG. FIG. 41C is a spectrum of phosphor I, phosphor II, phosphor III, and phosphor IV of the sub-light source of FIG. 40. FIG. FIG. 41D is a spectrum of blue light-emitting diode wafers having peak wavelengths of 443 nm, 458 nm, and 461 nm in the sub-light source of FIG. 40. 42 is a graph showing the relationship between the sub-light provided by the sub-light source of the first light source of the light source device according to another embodiment of the present disclosure and the circadian rhythm action factor of sunlight relative to the correlated color temperature. 43 is a graph showing the relationship between the sub-light provided by the sub-light source of the first light source of the light source device according to another embodiment of the present disclosure and the circadian rhythm action factor of sunlight relative to the correlated color temperature. 44 is the upper and lower circadian rhythm action factors of the sub-light provided by the sub-light source of the first light source of the light source device according to another embodiment of the present disclosure relative to the correlated color temperature and the circadian rhythm action factor of sunlight Plot of the correlated color temperature. 45 is a graph showing the relationship between the sub-light provided by the sub-light source of the first light source of the light source device according to another embodiment of the present disclosure and the circadian rhythm action factor of sunlight relative to the correlated color temperature. 46 is a graph showing the relationship between the sub-light provided by the sub-light source of the first light source of the light source device according to another embodiment of the present disclosure and the circadian rhythm action factor of sunlight relative to the correlated color temperature.

600: Light source device

610: light emitting module

620: control unit

B6: light

E1, E2, E3, E4, E41, E42: optical transmitter

V1, V2, V3, V4, V41, V42: sub-ray

Claims (16)

A light source device, including: A first light source for providing a first light, wherein the coordinates of the circadian rhythm effect factor of the first light relative to the correlated color temperature (CCT, CAF) fall at (2700±100 K, 0.197), (2700±100 K, 0.696), (4500±200 K, 0.474), (4500±200 K, 1.348), (6500±300 K, 0.759) and (6500±300 K, 1.604) six circadian rhythm action factors are relatively related The coordinate of the color temperature is within a first area formed by the vertices. The light source device as described in item 1 of the patent application scope, wherein the color rendering index of the first light is greater than 60, and the coordinate of the circadian rhythm effect factor of the first light relative to the relative color temperature (CCT, CAF) falls in ( The coordinates of the four circadian rhythm action factors of 2700±100 K, 0.696), (2700±100 K, 0.197), (6500±300 K, 0.759) and (6500±300 K, 1.229) relative to the correlated color temperature are the vertices Within a second area. The light source device as described in item 1 of the patent application scope further includes: A second light source for providing a second light, wherein the circadian rhythm effect factor of the second light relative to the coordinate of the correlated color temperature (CCT, CAF) falls within the first area and is different from the first light source The coordinates of the circadian rhythm factor relative to the correlated color temperature (CCT, CAF). The light source device as described in item 3 of the patent application scope further includes: A control unit is used to control the first light source and the second light source to combine the first light and the second light to output a third light. The light source device as described in item 4 of the patent application scope, wherein the coordinates of the circadian rhythm action factor of the third light with respect to the correlated color temperature (CCT, CAF) fall on the locus of the circadian rhythm action factor of the sunlight with respect to the correlated color temperature Below. The light source device as described in item 4 of the patent application scope, wherein the coordinates of the circadian rhythm action factor of the third light with respect to the correlated color temperature (CCT, CAF) fall on the locus of the circadian rhythm action factor of the sunlight with respect to the correlated color temperature Above. The light source device as described in item 4 of the patent application scope, wherein the coordinates of the circadian rhythm action factor of the third light with respect to the correlated color temperature (CCT, CAF) fall on the locus of the circadian rhythm action factor of the sunlight with respect to the correlated color temperature . The light source device as described in item 3 of the patent application scope, wherein the circadian rhythm action factor of one of the first light and the second ray falls relative to the coordinate of the correlated color temperature (CCT, CAF) on the circadian rhythm action factor of sunlight Below the trajectory of the correlated color temperature, and the coordinates of the other circadian action factor of the first ray and the second ray relative to the correlated color temperature fall on the trajectory of the circadian action factor of the sunlight relative to the trajectory of the correlated color temperature Above. The light source device as described in item 1 of the patent application scope, wherein the color rendering index of the first light is greater than 80, and the coordinate of the circadian rhythm effect factor of the first light relative to the correlated color temperature (CCT, CAF) falls in ( 2700±100 K, 0.242), (2700±100 K, 0.534), (4500±200 K, 0.580), (4500±200 K, 0.841), (6500±300 K, 0.788) and (6500±300 K, The coordinates of the six circadian rhythm factors of 1.060) relative to the correlated color temperature are within a third area formed by the vertices. A light source device, including: A light emitting module to provide a light; and A control unit for changing the ratio of a first sub-ray to a second sub-ray to form the ray, so the circadian rhythm effect factor and the correlated color temperature of the ray along the circadian rhythm effect factor different from sunlight are relative to The circadian rhythm action factor of the ray of the correlated color temperature changes relative to the trajectory of the correlated color temperature, wherein the coordinates of the circadian rhythm action factor of one of the first and second sub-rays relative to the correlated color temperature fall on the sun The circadian rhythm action factor of light is below the trajectory of the correlated color temperature, and the other circadian rhythm action factors of the first sub-ray and the second sub-ray fall relative to the correlated color temperature at the circadian rhythm action of the sunlight The factor is above the trajectory of the correlated color temperature. The light source device of claim 10, wherein the control unit is used to change the ratio of the first sub-ray, the second sub-ray, a third sub-ray and a fourth sub-ray to form the light, Therefore, the coordinates of the circadian rhythm action factor of the light with respect to the correlated color temperature have the circadian rhythm action factors of the first sub-ray, the second sub-ray, the third sub-ray and the fourth sub-ray respectively relative to the correlated color temperature The coordinates of the four vertices change within a region. The light source device as described in item 11 of the patent application range, wherein the correlated color temperature of the first sub-ray is less than the correlated color temperature of the second sub-ray and less than the correlated color temperature of the fourth sub-ray, and the correlated color temperature of the third sub-ray Less than the correlated color temperature of the second sub-ray and less than the correlated color temperature of the fourth sub-ray, the coordinates of the circadian rhythm effect factors of the first and third sub-rays with respect to the correlated color temperature fall on the day and night of the sunlight, respectively The circadian rhythm action factors with respect to the relative color temperature trajectory, and the coordinates of the circadian rhythm action factors with respect to the correlated color temperature of the second sub-ray and the fourth sub-ray fall on the sunlight circadian rhythm action factors with respect to The opposite sides of the trajectory of the correlated color temperature. The light source device as described in item 10 of the patent application range, wherein the first sub-ray and the second sub-ray are white light. A light source device, including: A first light source for providing a first light, wherein the circadian rhythm effect factor of the first light relative to the coordinates of the correlated color temperature (CCT, CAF) falls within an area, the area has an upper boundary, a lower boundary and The coordinates of the circadian rhythm acting factor relative to the correlated color temperature between the upper boundary and the lower boundary, wherein the circadian rhythm acting factor relative to the coordinate of the correlated color temperature (2700±100 K, 0.696), (4500±200 K, 1.348) With (6500±300 K, 1.604) located on this upper boundary, the coordinates of the circadian rhythm factor relative to the correlated color temperature (2700±100 K, 0.197), (4500±200 K, 0.474) and (6500±300 K, 0.759 ) Is located on the lower boundary. The light source device as described in item 14 of the patent application range, wherein the upper boundary and the lower boundary are each a quadratic function. The light source device as described in item 14 of the patent application scope further includes: A second light source for providing a second light, wherein the circadian rhythm effect factor of the second light relative to the coordinates of the correlated color temperature (CCT, CAF) falls within the region and is different from the circadian rhythm of the first light Coordinates of the action factor relative to the correlated color temperature (CCT, CAF).

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