TWI626394B - Illumination system - Google Patents
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Abstract
一種照明系統，其包括光源裝置以及演算單元。演算單元耦接於光源裝置且依據物體的反射頻譜、視覺配色函數、視覺喜好修正函數或其組合輸出控制訊號至光源裝置。光源裝置依據控制訊號輸出照明光束，使物體在照明光束的照射下趨近目標視覺感受。另提供一種使物體呈現目標視覺感受的方法。An illumination system includes a light source device and a calculation unit. The calculation unit is coupled to the light source device and outputs the control signal to the light source device according to the reflection spectrum of the object, the visual color matching function, the visual preference correction function, or a combination thereof. The light source device outputs the illumination beam according to the control signal, so that the object approaches the target visual perception under the illumination of the illumination beam. A method of presenting an object with a visual perception of the object is also provided.
Description
本揭露是有關於一種照明系統以及照明方法，且特別是有關於一種可使物體呈現目標視覺感受的照明系統及其控制方法。The present disclosure relates to an illumination system and a lighting method, and more particularly to an illumination system and a control method thereof for causing an object to present a visual perception of a target.
不同光源頻譜具有不同的色調。因此，在不同光源頻譜的照射下，被照物會呈現不同的視覺感受。舉例而言，在色調偏紅之光源頻譜的照射下，物體會偏暖色調，而在色調偏藍之光源頻譜的照射下，物體會偏冷色調。在商業應用上，物體所呈現的視覺感受會影響消費者的購物慾望。光源頻譜若能依設計需求而作適當的調整，將有助於提升賣場的買氣。Different source spectra have different tones. Therefore, under the illumination of different light source spectrums, the objects will exhibit different visual perceptions. For example, under the illumination of the spectrum of the source of the reddish color, the object will have a warmer hue, while under the illumination of the spectrum of the source of the bluish color, the object will have a cooler hue. In commercial applications, the visual perception of objects can affect a consumer's desire to shop. If the spectrum of the light source can be properly adjusted according to the design requirements, it will help to increase the buying power of the store.
本揭露提供一種照明系統，其可使物體在照明光束的照射下趨近目標視覺感受。本揭露還提供一種使物體呈現目標視覺感受的方法。The present disclosure provides an illumination system that can cause an object to approach a target visual experience under illumination of an illumination beam. The present disclosure also provides a method of presenting an object with a visual perception of the object.
本揭露的一種照明系統，其包括光源裝置以及演算單元。演算單元耦接於光源裝置且依據物體的反射頻譜、視覺配色函數、視覺喜好修正函數或其組合輸出控制訊號至光源裝置。光源裝置依據控制訊號輸出照明光束，使物體在照明光束的照射下趨近目標視覺感受。An illumination system of the present disclosure includes a light source device and a calculation unit. The calculation unit is coupled to the light source device and outputs the control signal to the light source device according to the reflection spectrum of the object, the visual color matching function, the visual preference correction function, or a combination thereof. The light source device outputs the illumination beam according to the control signal, so that the object approaches the target visual perception under the illumination of the illumination beam.
在本揭露的一實施例中，上述的光源裝置包括複數個發光元件。發光元件具有不同發光頻譜，且光源裝置依據控制訊號調變發光元件的發光強度。In an embodiment of the present disclosure, the light source device includes a plurality of light emitting elements. The light-emitting elements have different light-emitting spectra, and the light source device modulates the light-emitting intensity of the light-emitting elements according to the control signals.
在本揭露的一實施例中，上述的照明系統更包括輸入單元。輸入單元輸入物體的色彩編碼。演算單元耦接於輸入單元且依據色彩編碼計算出物體的反射頻譜。In an embodiment of the disclosure, the illumination system further includes an input unit. The input unit inputs the color code of the object. The calculation unit is coupled to the input unit and calculates a reflection spectrum of the object according to the color coding.
在本揭露的一實施例中，上述的照明系統更包括標準光源以及取像裝置。取像裝置在物體被標準光源照射下取得物體的反射頻譜。演算單元耦接於取像裝置且自取像裝置取得物體的反射頻譜。In an embodiment of the disclosure, the illumination system further includes a standard light source and an image capturing device. The image capturing device obtains a reflection spectrum of the object when the object is illuminated by a standard light source. The calculation unit is coupled to the image capturing device and obtains a reflection spectrum of the object from the image capturing device.
在本揭露的一實施例中，上述的照明系統更包括取像裝置。取像裝置取得背景光譜以及物體在背景光譜下所反射的頻譜。演算單元耦接於取像裝置且依據背景光譜以及物體在背景光譜下所反射的頻譜計算出物體的反射頻譜。In an embodiment of the disclosure, the illumination system further includes an image capture device. The image capture device takes the background spectrum and the spectrum that the object reflects in the background spectrum. The calculation unit is coupled to the image capturing device and calculates a reflection spectrum of the object according to the background spectrum and the spectrum reflected by the object in the background spectrum.
在本揭露的一實施例中，上述的照明系統更包括色卡以及取像裝置。取像裝置適於取得物體以及色卡在相同背景光譜下所反射的頻譜。演算單元耦接於取像裝置且依據物體以及色卡所反射的頻譜計算出物體的反射頻譜。In an embodiment of the disclosure, the lighting system further includes a color card and an image capturing device. The imaging device is adapted to take the spectrum of the object and the color card reflected by the same background spectrum. The calculation unit is coupled to the image capturing device and calculates a reflection spectrum of the object according to the object and the spectrum reflected by the color card.
在本揭露的一實施例中，上述的視覺喜好修正函數指示(indicate)目標視覺感受。演算單元依據視覺喜好修正函數修正控制訊號，以調變照明光束的光強度，使物體在照明光束的照射下落在孟塞爾顏色系統(Munsell Color System)之明度N4至明度N6的範圍內。In an embodiment of the present disclosure, the visual preference correction function described above indicates a target visual experience. The calculation unit corrects the control signal according to the visual preference correction function to modulate the light intensity of the illumination beam so that the illumination of the illumination beam falls within the range of the brightness N4 to the brightness N6 of the Munsell Color System.
在本揭露的一實施例中，上述的視覺喜好修正函數包括多個轉換矩陣。演算單元依據視覺設定條件從轉換矩陣篩選出至少一目標轉換矩陣。演算單元依據所述至少一目標轉換矩陣輸出對應的控制訊號，以調變照明光束的頻譜，從而校正物體在照明光束的照射下的明度、色相以及彩度的其中至少一者而趨近目標視覺感受。In an embodiment of the present disclosure, the visual preference correction function described above includes a plurality of transformation matrices. The calculation unit filters at least one target transformation matrix from the transformation matrix according to the visual setting condition. The calculating unit outputs a corresponding control signal according to the at least one target conversion matrix to modulate a spectrum of the illumination beam, thereby correcting at least one of brightness, hue and chroma of the object under illumination of the illumination beam to approach the target vision Feel.
在本揭露的一實施例中，上述的視覺設定條件指示目標視覺感受。各轉換矩陣對應目標視覺感受分別具有權重值，且所述至少一目標轉換矩陣對應目標視覺感受的權重值高於50%。In an embodiment of the present disclosure, the visual setting condition described above indicates a target visual experience. Each of the transformation matrices has a weight value corresponding to the target visual perception, and the weight value of the at least one target transformation matrix corresponding to the target visual experience is higher than 50%.
在本揭露的一實施例中，上述的演算單元建構在光源裝置中或建構在行動裝置、閘道器或雲端系統。In an embodiment of the present disclosure, the above calculation unit is constructed in a light source device or constructed in a mobile device, a gateway or a cloud system.
在本揭露的一實施例中，上述的照明系統更包括儲存單元。儲存單元儲存依使用者喜好或習慣所設定的參數。In an embodiment of the disclosure, the lighting system further includes a storage unit. The storage unit stores parameters that are set according to user preferences or habits.
本揭露的一種使物體呈現目標視覺感受的方法，包括以下步驟：令演算單元依據物體的反射頻譜、視覺配色函數、視覺喜好修正函數或其組合輸出控制訊號至光源裝置；以及光源裝置依據控制訊號輸出照明光束，使物體在照明光束的照射下趨近目標視覺感受。A method for causing an object to present a target visual experience includes the steps of: causing the calculation unit to output a control signal to the light source device according to the reflection spectrum of the object, a visual color matching function, a visual preference correction function, or a combination thereof; and the light source device according to the control signal The illumination beam is output such that the object approaches the target visual perception under the illumination of the illumination beam.
在本揭露的一實施例中，上述的光源裝置包括複數個發光元件。發光元件具有不同發光頻譜，且光源裝置依據控制訊號調變發光元件的發光強度。In an embodiment of the present disclosure, the light source device includes a plurality of light emitting elements. The light-emitting elements have different light-emitting spectra, and the light source device modulates the light-emitting intensity of the light-emitting elements according to the control signals.
在本揭露的一實施例中，上述使物體呈現目標視覺感受的方法更包括以下步驟：藉由輸入單元輸入物體的色彩編碼；以及演算單元耦接於輸入單元且依據色彩編碼計算出物體的反射頻譜。In an embodiment of the present disclosure, the method for causing an object to present a target visual experience further includes the steps of: inputting a color coding of the object by the input unit; and coupling the calculation unit to the input unit and calculating the reflection of the object according to the color coding. Spectrum.
在本揭露的一實施例中，上述使物體呈現目標視覺感受的方法更包括以下步驟：以標準光源照射物體；在物體被標準光源照射下藉由取像裝置取得物體的反射頻譜；以及令演算單元自取像裝置取得物體的反射頻譜。In an embodiment of the present disclosure, the method for causing an object to present a target visual experience further includes the steps of: illuminating the object with a standard light source; obtaining a reflection spectrum of the object by the image capturing device after the object is illuminated by the standard light source; and calculating the calculation The unit takes the reflection spectrum of the object from the image capturing device.
在本揭露的一實施例中，上述使物體呈現目標視覺感受的方法更包括以下步驟：藉由取像裝置取得背景光譜以及物體在背景光譜下所反射的頻譜；以及令演算單元依據背景光譜以及物體在背景光譜下所反射的頻譜計算出物體的反射頻譜。In an embodiment of the present disclosure, the method for causing an object to present a target visual experience further includes the steps of: obtaining a background spectrum by the image capturing device and a spectrum reflected by the object in the background spectrum; and causing the calculation unit to perform the background spectrum according to The spectrum reflected by the object in the background spectrum calculates the reflection spectrum of the object.
在本揭露的一實施例中，上述使物體呈現目標視覺感受的方法更包括以下步驟：藉由取像裝置取得物體以及色卡在相同背景光譜下所反射的頻譜；以及令演算單元依據物體以及色卡所反射的頻譜計算出物體的反射頻譜。In an embodiment of the present disclosure, the method for causing an object to present a target visual experience further includes the steps of: acquiring an image of the object and the color card reflected by the color spectrum in the same background spectrum by the image capturing device; and causing the calculation unit to be based on the object and The spectrum reflected by the color card calculates the reflection spectrum of the object.
在本揭露的一實施例中，上述的視覺喜好修正函數指示目標視覺感受。演算單元依據視覺喜好修正函數修正控制訊號，以調變照明光束的光強度，使物體在照明光束的照射下落在孟塞爾顏色系統之明度N4至明度N6的範圍內。In an embodiment of the present disclosure, the visual preference correction function described above indicates a target visual experience. The calculation unit corrects the control signal according to the visual preference correction function to modulate the light intensity of the illumination beam so that the illumination of the illumination beam falls within the range of brightness N4 to brightness N6 of the Munsell color system.
在本揭露的一實施例中，上述視覺喜好修正函數包括多個轉換矩陣。演算單元依據視覺設定條件從轉換矩陣篩選出至少一目標轉換矩陣。演算單元依據所述至少一目標轉換矩陣輸出對應的控制訊號，以調變照明光束的頻譜，從而校正物體在照明光束的照射下的明度、色相以及彩度的其中至少一者而趨近目標視覺感受。In an embodiment of the present disclosure, the visual preference correction function includes a plurality of transformation matrices. The calculation unit filters at least one target transformation matrix from the transformation matrix according to the visual setting condition. The calculating unit outputs a corresponding control signal according to the at least one target conversion matrix to modulate a spectrum of the illumination beam, thereby correcting at least one of brightness, hue and chroma of the object under illumination of the illumination beam to approach the target vision Feel.
在本揭露的一實施例中，上述的演算單元以有線或無線的方式傳輸控制訊號至光源裝置。In an embodiment of the disclosure, the calculation unit transmits the control signal to the light source device in a wired or wireless manner.
在本揭露的一實施例中，上述的使物體呈現目標視覺感受的方法更包括令儲存單元儲存依使用者喜好或習慣所設定的參數，所述參數包含照明光束的頻譜、光強度、色溫等照明光束的光特性。In an embodiment of the present disclosure, the method for causing an object to present a target visual experience further includes: causing the storage unit to store a parameter set according to a user's preference or habit, the parameter including a spectrum, an illumination intensity, a color temperature, and the like of the illumination beam. The light characteristics of the illumination beam.
為讓本揭露的上述特徵和優點能更明顯易懂，下文特舉實施例，並配合所附圖式作詳細說明如下。The above described features and advantages of the present invention will be more apparent from the following description.
圖1繪示光源及視覺配色函數對人眼接收到之物體色彩的影響。圖1中各個方框的橫座標代表波長，且波長範圍落在380nm至780nm之間。請參照圖1及式(1)-(4)，物體在光源裝置照射下所反射的頻譜O(λ)是由光源裝置的發光頻譜S(λ)與物體本身的反射頻譜R(λ)相乘後再積分而得。由於人眼對於短(420nm至440nm)、中(530nm至540nm)、長(560nm至580nm)波長之光束的敏感度(sensitivity)不同，因此，人眼接收到的物體色彩(例如由三色刺激值X、Y、Z表示)是由視覺配色函數、、(參見虛線圈起處)分別與物體在光源裝置照射下所反射的頻譜O(λ)相乘後再積分的結果(式2-3中的k為常數)。換句話說，人眼接收到的物體色彩與物體在光源裝置照射下的真實色彩會有差異。另外，人眼對於不同色彩的視覺感受也會受到視覺喜好或主觀認知而有所差異，例如看到藍色的物體會覺得比較涼爽。鑑於上述，本揭露提出一種照明系統及使物體呈現目標視覺感受的方法。此方法應用所述照明系統且依據上述與視覺相關之因子(包括物體的反射頻譜、視覺配色函數以及視覺喜好)調整照明系統之光源裝置所輸出的照明光束，使物體在照明光束的照射下趨近目標視覺感受。(1)(2)(3)(4)Figure 1 illustrates the effect of the light source and the visual color matching function on the color of the object received by the human eye. The abscissas of the various blocks in Figure 1 represent wavelengths and the wavelength range falls between 380 nm and 780 nm. Referring to FIG. 1 and equations (1)-(4), the spectrum O(λ) reflected by the object under illumination by the light source device is reflected by the light-emitting spectrum S(λ) of the light source device and the reflection spectrum R(λ) of the object itself. After the multiplication, you will get points. Since the human eye has different sensitivity to short (420 nm to 440 nm), medium (530 nm to 540 nm), and long (560 nm to 580 nm) wavelength beams, the color of the object received by the human eye (for example, by tristimulus) The value X, Y, Z) is determined by the visual color matching function , , (Refer to the starting point of the dotted circle) respectively, and multiply the result by multiplying the spectrum O(λ) reflected by the object under the illumination of the light source device (k in the equation 2-3 is a constant). In other words, the color of the object received by the human eye is different from the true color of the object illuminated by the light source device. In addition, the human eye's visual perception of different colors may be different by visual preference or subjective cognition. For example, objects that see blue will feel cooler. In view of the above, the present disclosure proposes an illumination system and a method of presenting an object with a visual perception of the object. The method applies the illumination system and adjusts the illumination beam output by the light source device of the illumination system according to the above-mentioned visual correlation factors (including the reflection spectrum of the object, the visual color matching function and the visual preference), so that the object tends to be illuminated by the illumination beam. Near target visual experience. (1) (2) (3) (4)
圖2是依照本揭露的一實施例的一種照明系統的示意圖。圖3是依照本揭露的一實施例的一種使物體呈現目標視覺感受的方法的流程示意圖。請參照圖2，照明系統100包括光源裝置110以及演算單元120。光源裝置110適於提供照明物體O用的照明光束IB。舉例而言，光源裝置110可包括複數個發光元件(未繪示)。發光元件可為發光二極體，但不以此為限。發光元件具有不同發光頻譜。具體地，發光元件的發光頻譜可由兩種以上的波段組成，且各波段的發光強度可獨立調變。在本實施例中，發光元件的發光頻譜例如由紅光、綠光以及藍光所組成，且發光元件包括紅光發光二極體、綠光發光二極體以及藍光發光二極體，但不以此為限。在另一實施例中，發光元件的發光頻譜也可具有四種波段。2 is a schematic diagram of an illumination system in accordance with an embodiment of the present disclosure. FIG. 3 is a schematic flow chart of a method for causing an object to present a target visual experience according to an embodiment of the disclosure. Referring to FIG. 2 , the illumination system 100 includes a light source device 110 and a calculation unit 120 . The light source device 110 is adapted to provide an illumination beam IB for illuminating the object O. For example, the light source device 110 can include a plurality of light emitting elements (not shown). The light emitting element may be a light emitting diode, but is not limited thereto. The illuminating elements have different illuminating spectra. Specifically, the light-emitting spectrum of the light-emitting element may be composed of two or more wavelength bands, and the light-emitting intensity of each wavelength band may be independently modulated. In this embodiment, the light-emitting spectrum of the light-emitting element is composed of, for example, red light, green light, and blue light, and the light-emitting elements include a red light-emitting diode, a green light-emitting diode, and a blue light-emitting diode, but This is limited. In another embodiment, the illuminating spectrum of the illuminating element can also have four bands.
演算單元120耦接於光源裝置110，其適於輸出控制訊號CS至光源裝置110，使光源裝置110依據控制訊號CS調變不同波段(顏色)之發光元件的發光強度。演算單元120可以有線或無線的方式傳輸控制訊號CS至光源裝置110。在一實施例中，演算單元120可以建構在光源裝置110中或是建構在行動裝置、閘道器或雲端系統等處。The calculation unit 120 is coupled to the light source device 110, and is adapted to output the control signal CS to the light source device 110, so that the light source device 110 modulates the luminous intensity of the light-emitting elements of different wavelength bands (colors) according to the control signal CS. The calculation unit 120 can transmit the control signal CS to the light source device 110 in a wired or wireless manner. In an embodiment, the calculation unit 120 may be constructed in the light source device 110 or constructed in a mobile device, a gateway, or a cloud system.
請參照圖2及圖3，使物體O呈現目標視覺感受的方法可包括以下步驟：令演算單元120依據物體O的反射頻譜、視覺配色函數、視覺喜好修正函數或其組合輸出控制訊號CS至光源裝置110(步驟S200)；以及光源裝置110依據控制訊號CS輸出照明光束IB，使物體O在照明光束IB的照射下趨近目標視覺感受(步驟S300)。Referring to FIG. 2 and FIG. 3, the method for causing the object O to present the target visual experience may include the following steps: causing the calculation unit 120 to output the control signal CS to the light source according to the reflection spectrum of the object O, the visual color matching function, the visual preference correction function, or a combination thereof. The device 110 (step S200); and the light source device 110 outputs the illumination beam IB according to the control signal CS, so that the object O approaches the target visual experience under the illumination of the illumination beam IB (step S300).
進一步而言，演算單元120是依據上述與視覺相關之因子(包括物體的反射頻譜、視覺配色函數以及視覺喜好)的其中一者、其中兩者或全部來調變自光源裝置110輸出之照明光束IB的光源頻譜。舉例而言，若欲使人眼所接收到的物體色彩趨近物體O的真實色彩，則可令演算單元120依據物體O的反射頻譜以及視覺配色函數來修正控制訊號CS，使修正後的光源頻譜足以補償視覺配色函數對於色彩感知的影響。在本揭露中，視覺配色函數可為對應CIE XYZ色彩空間的視覺配色函數、、，也可為對應CIE RGB色彩空間的視覺配色函數、、。若欲進一步校正物體O在照明光束IB的照射下的視覺感受，例如調變物體O的明度(Value)、色相(Hue)以及彩度(Chroma)的其中至少一者，則可令演算單元120進一步依據視覺喜好修正函數來調變自光源裝置110輸出之照明光束IB的光源頻譜。Further, the calculation unit 120 modulates the illumination beam output from the light source device 110 according to one or more of the above-mentioned factors related to the vision (including the reflection spectrum of the object, the visual color matching function, and the visual preference). IB's source spectrum. For example, if the color of the object received by the human eye is to be close to the true color of the object O, the calculation unit 120 may modify the control signal CS according to the reflection spectrum of the object O and the visual color matching function to make the corrected light source. The spectrum is sufficient to compensate for the effects of visual color matching functions on color perception. In the disclosure, the visual color matching function can be a visual color matching function corresponding to the CIE XYZ color space. , , Can also be a visual color matching function corresponding to the CIE RGB color space , , . If the visual perception of the object O under the illumination of the illumination beam IB is to be further corrected, for example, at least one of the brightness, the hue, and the chroma of the object O, the calculation unit 120 may be caused. The spectrum of the light source of the illumination beam IB output from the light source device 110 is further modulated according to a visual preference correction function.
具體地，視覺喜好修正函數指示目標視覺感受。若欲讓物體O在照明光束IB的照射下呈現色彩鮮豔的視覺感受(即高飽和度)，則可令演算單元120依據視覺喜好修正函數修正控制訊號CS，以調變照明光束IB的光強度，使物體O在照明光束IB的照射下落在孟塞爾顏色系統之明度N4至明度N6的範圍內。在此架構下，視覺喜好修正函數可包括將反射頻譜轉換成CIE La*b*色彩空間的計算矩陣以及在色座標(a*、b*)固定下調整明度值(L)的計算矩陣，以藉由提升各波段發光元件的發光強度，來調變照明光束IB的光強度。Specifically, the visual preference correction function indicates the target visual experience. If the object O is to be subjected to a bright visual perception (ie, high saturation) under the illumination of the illumination beam IB, the calculation unit 120 may modify the control signal CS according to the visual preference correction function to modulate the light intensity of the illumination beam IB. The illumination of the object O at the illumination beam IB falls within the range of the brightness N4 to the brightness N6 of the Munsell color system. Under this architecture, the visual preference correction function may include a calculation matrix that converts the reflection spectrum into a CIE La*b* color space and a calculation matrix that adjusts the brightness value (L) under the fixed color coordinates (a*, b*) to The light intensity of the illumination beam IB is modulated by increasing the luminous intensity of the light-emitting elements of each band.
在另一實施例中，視覺喜好修正函數可包括多個轉換矩陣。各轉換矩陣適於調變照明光束IB的光源頻譜，從而校正物體O在照明光束IB的照射下的明度、色相以及彩度的其中至少一者而趨近目標視覺感受。由於不同的人在相同的光源頻譜以及相同的物體色彩下可能有不同的視覺感受(如溫暖、愉快、舒適、冰冷或恐怖等感受)。藉由多組人因實驗統計分析不同的物體色彩在不同的光源頻譜下所帶給人的視覺感受，則可建構出多個轉換矩陣，其中各轉換矩陣對應每個視覺感受會依據人因實驗結果而有獨立的權重。演算單元120可依據視覺設定條件(例如包括視覺感受及權重大小)從轉換矩陣篩選出至少一目標轉換矩陣。此外，演算單元120依據所述至少一目標轉換矩陣輸出對應的控制訊號CS，以調變照明光束IB的頻譜，從而校正物體O在照明光束IB的照射下的明度、色相以及彩度的其中至少一者而趨近目標視覺感受。In another embodiment, the visual preference correction function can include a plurality of transformation matrices. Each of the conversion matrices is adapted to modulate the source spectrum of the illumination beam IB, thereby correcting at least one of the brightness, hue, and chroma of the object O under illumination of the illumination beam IB to approach the target visual perception. Because different people may have different visual perceptions (such as warmth, happiness, comfort, coldness or horror) in the same source spectrum and the same object color. By using multiple groups of people to analyze the visual perception of different object colors in different light source spectrums due to experimental statistics, multiple transformation matrices can be constructed, in which each transformation matrix corresponds to each human visual experience according to human factors. As a result, there are independent weights. The calculation unit 120 may filter at least one target transformation matrix from the transformation matrix according to visual setting conditions (eg, including visual perception and weight magnitude). In addition, the calculating unit 120 outputs a corresponding control signal CS according to the at least one target conversion matrix to modulate the spectrum of the illumination beam IB, thereby correcting at least the brightness, hue and chroma of the object O under the illumination of the illumination beam IB. One approaches the target visual experience.
進一步而言，視覺設定條件指示目標視覺感受。各轉換矩陣對應目標視覺感受分別具有權重值，且所述至少一目標轉換矩陣對應目標視覺感受的權重值高於50%。舉例而言，若視覺設定條件是使物體O在照明光束IB的照射下呈現舒適及冰冷的感受，且目標轉換矩陣對應舒適及冰冷的感受的權重值須高於50%，則演算單元120可依據此視覺設定條件從轉換矩陣篩選出一或複數個目標轉換矩陣，並選擇其中一個目標轉換矩陣作為最適化的目標轉換矩陣或將全部的目標轉換矩陣回饋至光源裝置110，並由使用者去選擇。在一實施例中，照明系統100還可進一步包括儲存單元，以儲存依使用者喜好或習慣所設定的參數，作為統計分析之參考。所述參數可包含照明光束IB的頻譜、光強度或色溫等照明光束IB的光特性，但不以此為限。Further, the visual setting condition indicates the target visual experience. Each of the transformation matrices has a weight value corresponding to the target visual perception, and the weight value of the at least one target transformation matrix corresponding to the target visual experience is higher than 50%. For example, if the visual setting condition is that the object O exhibits a comfortable and cold feeling under the illumination of the illumination beam IB, and the weight value of the target conversion matrix corresponding to the comfortable and cold feeling must be higher than 50%, the calculation unit 120 may The visual setting condition selects one or a plurality of target transformation matrices from the transformation matrix, and selects one of the target transformation matrices as the optimized target transformation matrix or feeds all the target transformation matrices to the light source device 110, and is selected by the user. . In an embodiment, the illumination system 100 may further include a storage unit to store parameters set according to user preferences or habits as a reference for statistical analysis. The parameter may include the optical characteristics of the illumination beam IB such as the spectrum, the light intensity or the color temperature of the illumination beam IB, but is not limited thereto.
在執行步驟S200之前，可先使演算單元120取得物體O的反射頻譜(步驟S100)。以下列舉幾種取得物體O的反射頻譜的方法，但本揭露不以此為限。在本實施例中，照明系統100可進一步包括輸入單元130，以輸入物體O的色彩編碼CI(如供應商提供之色座標)。輸入單元130可以是僅具輸入功能的裝置(如鍵盤或觸控面板)或是具輸入及顯示功能的裝置(如觸控顯示面板)。演算單元120耦接於輸入單元130且依據色彩編碼CI計算出物體O的反射頻譜。Before performing step S200, the calculation unit 120 may first obtain the reflection spectrum of the object O (step S100). Several methods for obtaining the reflection spectrum of the object O are listed below, but the disclosure is not limited thereto. In the present embodiment, the illumination system 100 may further include an input unit 130 to input a color code CI of the object O (such as a color coordinate provided by a supplier). The input unit 130 may be a device having only an input function (such as a keyboard or a touch panel) or a device having an input and display function (such as a touch display panel). The calculation unit 120 is coupled to the input unit 130 and calculates the reflection spectrum of the object O according to the color coding CI.
在一實施例中，照明系統100亦可藉由標準光源以及取像裝置的設置取得物體O的反射頻譜。取像裝置用以取得物體O被標準光源照射下的反射頻譜。取像裝置可以是任何適於擷取物體顏色資訊的裝置，如電荷耦合元件(Charge Coupled Device, CCD)或互補式金屬氧化物半導體(CMOS)等，但不以此為限。演算單元120耦接於取像裝置且自取像裝置取得物體O的反射頻譜。In an embodiment, the illumination system 100 can also obtain the reflection spectrum of the object O by the arrangement of the standard light source and the image capturing device. The image capturing device is used to obtain a reflection spectrum of the object O illuminated by the standard light source. The image capturing device may be any device suitable for capturing color information of an object, such as a charge coupled device (CCD) or a complementary metal oxide semiconductor (CMOS), but is not limited thereto. The calculation unit 120 is coupled to the image capturing device and obtains a reflection spectrum of the object O from the image capturing device.
在另一實施例中，照明系統100也可省略標準光源的設置，且藉由取像裝置取得背景光譜以及物體O在背景光譜下所反射的頻譜。再由耦接於取像裝置的演算單元120依據背景光譜以及物體O在背景光譜下所反射的頻譜去進行歸一化計算，而獲得物體O的反射頻譜。In another embodiment, the illumination system 100 can also omit the setting of the standard light source, and the background spectrum and the spectrum reflected by the object O in the background spectrum are obtained by the image capturing device. Then, the calculation unit 120 coupled to the image capturing device performs normalization calculation according to the background spectrum and the spectrum reflected by the object O in the background spectrum, and obtains the reflection spectrum of the object O.
在又一實施例中，照明系統100可藉由色卡以及取像裝置的設置取得物體O的反射頻譜。具體地，藉由取像裝置取得物體O以及色卡在相同背景光譜下所反射的頻譜。再由耦接於取像裝置的演算單元120依據物體O以及色卡所反射的頻譜計算出物體O的反射頻譜。舉例而言，若色卡在所述背景光譜下所反射的頻譜不同於其原有的反射頻譜，則可藉由對比色卡的反射頻譜與色卡在所述光譜下反射的頻譜，去獲得可計算出物體O之反射頻譜的逆矩陣(inverse matrix)。In still another embodiment, the illumination system 100 can obtain the reflection spectrum of the object O by the color card and the setting of the image capture device. Specifically, the image of the object O and the color spectrum reflected by the color card in the same background spectrum is obtained by the image capturing device. The calculation unit 120 coupled to the image capturing device calculates the reflection spectrum of the object O according to the object O and the spectrum reflected by the color card. For example, if the color spectrum reflected by the color card in the background spectrum is different from the original reflection spectrum, the contrast spectrum of the color card and the spectrum reflected by the color card in the spectrum can be obtained. The inverse matrix of the reflection spectrum of the object O is calculated.
綜上所述，本揭露提出一種照明系統及使物體呈現目標視覺感受的方法，其依據物體的反射頻譜、視覺配色函數、視覺喜好修正函數或其組合調整光源裝置所輸出之照明光束，使物體在照明光束的照射下趨近目標視覺感受。在商業應用上，藉由照明系統提供所需之照明效果，有助於提升消費慾望以及營造消費氣氛。In summary, the present disclosure provides an illumination system and a method for causing an object to present a visual perception of an object, which adjusts an illumination beam output by the light source device according to a reflection spectrum of the object, a visual color matching function, a visual preference correction function, or a combination thereof, so that the object Approaching the target visual perception under illumination of the illumination beam. In commercial applications, the lighting system provides the required lighting effects, which helps to increase consumer desire and create a consumer atmosphere.
雖然本揭露已以實施例揭露如上，然其並非用以限定本揭露，任何所屬技術領域中具有通常知識者，在不脫離本揭露的精神和範圍內，當可作些許的更動與潤飾，故本揭露的保護範圍當視後附的申請專利範圍所界定者為準。The present disclosure has been disclosed in the above embodiments, but it is not intended to limit the disclosure, and any person skilled in the art can make some changes and refinements without departing from the spirit and scope of the disclosure. The scope of protection of this disclosure is subject to the definition of the scope of the appended claims.
100‧‧‧照明系統
110‧‧‧光源裝置
120‧‧‧演算單元
130‧‧‧輸入單元
CI‧‧‧色彩編碼
CS‧‧‧控制訊號
IB‧‧‧照明光束
O‧‧‧物體
O(λ)‧‧‧頻譜
R(λ)‧‧‧反射頻譜
S(λ)‧‧‧發光頻譜
S100、S200、S300‧‧‧步驟
X、Y、Z‧‧‧三色刺激值
、、‧‧‧視覺配色函數100‧‧‧Lighting system
110‧‧‧Light source device
120‧‧‧ calculus unit
130‧‧‧Input unit
CI‧‧‧ color coding
CS‧‧‧Control signal
IB‧‧‧Lighting beam
O‧‧‧ objects
O(λ)‧‧‧ spectrum
R(λ)‧‧‧ reflection spectrum
S(λ)‧‧‧ luminescence spectrum
S100, S200, S300‧‧‧ steps
X, Y, Z‧‧‧ tristimulus values
, , ‧‧‧Visual color matching function
圖1繪示光源及視覺配色函數對人眼接收到之物體色彩的影響。 圖2是依照本揭露的一實施例的一種照明系統的示意圖。 圖3是依照本揭露的一實施例的一種使物體呈現目標視覺感受的方法的流程示意圖。Figure 1 illustrates the effect of the light source and the visual color matching function on the color of the object received by the human eye. 2 is a schematic diagram of an illumination system in accordance with an embodiment of the present disclosure. FIG. 3 is a schematic flow chart of a method for causing an object to present a target visual experience according to an embodiment of the disclosure.
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| CN101235955A (en) * | 2008-03-05 | 2008-08-06 | 中国科学院安徽光学精密机械研究所 | LED based spectrum distribution adjustable illuminating source system |
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