TW201447243A - Light sensor and sensing method for discriminating light source and adjusting output of visible light sensor - Google Patents

Light sensor and sensing method for discriminating light source and adjusting output of visible light sensor Download PDF

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TW201447243A
TW201447243A TW102119651A TW102119651A TW201447243A TW 201447243 A TW201447243 A TW 201447243A TW 102119651 A TW102119651 A TW 102119651A TW 102119651 A TW102119651 A TW 102119651A TW 201447243 A TW201447243 A TW 201447243A
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light
sensing
visible light
unit
sensing unit
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TW102119651A
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Wei-Yang Ou
Meng-Yong Lin
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Sitronix Technology Corp
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Abstract

The present invention relates to a visible light sensor and sensing method for discriminating light source and adjusting output of visible light sensor. The visible light sensor comprises a first light sensing unit, a second light sensing unit and a light source discriminator. The first light sensing unit senses an intensity within a visible light spectrum and outputs a corresponding first sensing signal. The second light sensing unit senses an intensity within another spectrum different from the visible light spectrum sensed by the first light sensing unit and outputs a corresponding second sensing signal. The light source discriminator receives the first and second sensing signals, calculates the output proportion of the first and second sensing signals, and discriminates a light source according to the output proportion.

Description

照明光源種類辨識與可見光感測器輸出修正方法 Illumination source type identification and visible light sensor output correction method

本發明乃是與一種可見光感測器及其感測方法相關，且尤其是與可進行光源辨識之可見光感測器及其感測方法相關。 The present invention relates to a visible light sensor and a sensing method thereof, and more particularly to a visible light sensor that can perform light source identification and a sensing method thereof.

光學感測器是利用光敏元件，如光二極體(photo-diode)將光訊號轉換為電訊號的感測器。現在常用光敏元件的感應波長在可見光頻譜附近，如可見光頻譜內、紅外線波長和紫外線波長。光學感測器不只是應用於光的測量，更常用於作為探測元件，組成其它類型的感測器，對非電量(如溫度等)進行檢測，只要將這些非電量轉換為光訊號的變化，便可實現對非電量的檢測。 An optical sensor is a sensor that converts an optical signal into an electrical signal using a photosensitive element, such as a photo-diode. The sensing wavelengths of commonly used photosensitive elements are now in the vicinity of the visible light spectrum, such as in the visible light spectrum, the infrared wavelength, and the ultraviolet wavelength. Optical sensors are not only used for the measurement of light, but are often used as detector elements to form other types of sensors. To detect non-electricity (such as temperature), simply convert these non-electric quantities into changes in optical signals. The detection of non-electricity can be achieved.

在可見光感測器的應用上，通常希望可見光感測器輸出與實際照度一樣，照度的定義是可見光頻譜上各波長的輸入能量，透過人眼視效函數權重調整計算而得。然而，由於可見光感測器對各波長輸入能量的權重難以和人眼視效函數完全一致，因此在不同照明光源下，或可見光感測器常置於各種透明覆蓋件之外殼內的應用，如透明玻璃(cover glass)、透光壓克力或透明玻璃加上墨印(ink)等情形，可見光感測器的輸出將出現不同偏差，如第1圖所示。 In the application of the visible light sensor, it is generally desired that the visible light sensor output is the same as the actual illuminance, and the illuminance is defined as the input energy of each wavelength in the visible light spectrum, which is calculated by adjusting the weight of the human visual function function. However, since the weight of the input energy of the visible light sensor is not completely consistent with the visual function of the human eye, applications under different illumination sources or visible light sensors are often placed in the outer casing of various transparent covers, such as transparent. In the case of glass (cover glass), transparent acrylic or transparent glass plus ink, the output of the visible light sensor will exhibit different deviations, as shown in Figure 1.

本發明之一目的係在提供一種可見光感測器及其感測方 法，透過計算對應一可見光頻譜內的光強度的光感測訊號與對應不同於此可見光頻譜的光強度的光感測訊號的輸出比率，藉此判斷出目前的照明光源種類。 One of the objectives of the present invention is to provide a visible light sensor and a sensing side thereof. The method determines the current illumination source type by calculating an output ratio of the light sensing signal corresponding to the light intensity in the visible light spectrum and the light sensing signal corresponding to the light intensity different from the visible light spectrum.

本發明之另一目的係在提供一種可見光感測器及其感測方法，藉由所辨識出的光源種類修正可見光感測單元的輸出，以使其輸出更符合實際照度。 Another object of the present invention is to provide a visible light sensor and a sensing method thereof, wherein the output of the visible light sensing unit is corrected by the identified type of light source to make the output more in line with the actual illumination.

依據本發明，提供一種可見光感測器，包括一第一光感測單元、一第二光感測單元及一光源辨識單元。第一光感測單元感測一可見光頻譜內的光強度，並對應輸出一第一光感測訊號。第二光感測單元感測不同於第一感測單元感測之可見光頻譜的另一光頻譜的光強度，並對應輸出一第二光感測訊號。光源辨識單元接收第一、第二光感測訊號，計算第一、第二光感測訊號的輸出比率，並依據第一、第二光感測訊號的輸出比率判斷出一光源種類。 According to the present invention, a visible light sensor includes a first light sensing unit, a second light sensing unit, and a light source identifying unit. The first light sensing unit senses the light intensity in a visible light spectrum and correspondingly outputs a first light sensing signal. The second light sensing unit senses the light intensity of another light spectrum different from the visible light spectrum sensed by the first sensing unit, and correspondingly outputs a second light sensing signal. The light source identification unit receives the first and second light sensing signals, calculates an output ratio of the first and second light sensing signals, and determines a light source type according to the output ratios of the first and second light sensing signals.

依據本發明，提供一種可見光感測方法，包括下列步驟：接收由一第一光感測單元感測一可見光頻譜內的光強度，並對應輸出的一第一光感測訊號，及由以一第二光感測單元感測該不同於第一感測單元感測之可見光頻譜的另一光頻譜的光強度，並對應輸出的一第二光感測訊號；計算第一、第二光感測訊號的輸出比率；及依據第一、第二光感測訊號的輸出比率判斷出一光源種類。 According to the present invention, there is provided a visible light sensing method, comprising the steps of: receiving a first light sensing signal that is sensed by a first light sensing unit in a visible light spectrum, and correspondingly outputting a first light sensing signal, and The second light sensing unit senses the light intensity of the other light spectrum different from the visible light spectrum sensed by the first sensing unit, and correspondingly outputs a second light sensing signal; calculates the first and second light senses The output ratio of the test signal; and determining the type of the light source according to the output ratio of the first and second optical sensing signals.

由上述中可以得知，本發明之可見光感測器及其感測方法可進行光源辨識之感測機制，並且可依據需求，更進一步針對可見光感測輸出進行修正，以符合實際照度。 It can be seen from the above that the visible light sensor of the present invention and the sensing method thereof can perform the sensing mechanism of the light source identification, and can further correct the visible light sensing output according to the requirements to conform to the actual illumination.

1、2‧‧‧可見光感測器 1, 2‧‧‧ visible light sensor

11‧‧‧第一光感測單元 11‧‧‧First light sensing unit

12‧‧‧第二光感測單元 12‧‧‧Second light sensing unit

13‧‧‧光源辨識單元 13‧‧‧Light source identification unit

14‧‧‧修正單元 14‧‧‧Correction unit

000、002‧‧‧入射光源 000, 002‧‧‧ incident light source

001‧‧‧透明覆蓋件 001‧‧‧Transparent cover

111‧‧‧可見光鍍膜 111‧‧‧ Visible coating

112‧‧‧可見光 112‧‧‧ Visible light

113、123‧‧‧感光元件 113, 123‧‧‧Photosensitive elements

114、124‧‧‧類比數位轉換單元 114, 124‧‧‧ analog digital conversion unit

121‧‧‧第二光鍍膜 121‧‧‧Second light coating

122‧‧‧第二頻譜光 122‧‧‧Second spectrum light

S100、S110、S120、S130‧‧‧步驟 S100, S110, S120, S130‧‧‧ steps

第1圖為理想視效函數與可見光感測器的輸出頻譜比較圖。 Figure 1 is a comparison of the ideal visual effect function and the output spectrum of the visible light sensor.

第2圖顯示依據本發明之一實施例之可見光感測器之一系統方塊圖。 Figure 2 is a block diagram showing one of the visible light sensors in accordance with an embodiment of the present invention.

第3圖顯示依據本發明之一實施例之可見光感測單元之一光學鍍膜與電路示意圖。 3 is a schematic view showing an optical coating and a circuit of a visible light sensing unit according to an embodiment of the present invention.

第4圖顯示不同照明光源的頻譜波長示意圖。 Figure 4 shows a schematic diagram of the spectral wavelengths of different illumination sources.

第5圖顯示依據本發明之另一實施例之可見光感測器之一透明覆蓋、光學鍍膜與電路示意圖。 Fig. 5 is a view showing a transparent cover, an optical coating, and a circuit of a visible light sensor according to another embodiment of the present invention.

第6圖顯示不同透明玻璃之波長對穿透率對照圖。 Figure 6 shows a comparison of wavelength versus transmittance for different transparent glasses.

第7圖顯示依據本發明之另一實施例之可見光感測器之一系統方塊圖。 Figure 7 is a block diagram showing one of the visible light sensors in accordance with another embodiment of the present invention.

第8圖顯示依據本發明之一實施例之可見光感測方法之一流程步驟示意圖。 Figure 8 is a schematic diagram showing one of the flow steps of a visible light sensing method according to an embodiment of the present invention.

第9圖顯示依據本發明之另一實施例之可見光感測方法之一流程步驟示意圖。 Figure 9 is a flow chart showing one of the steps of the visible light sensing method according to another embodiment of the present invention.

為進一步說明各實施例，本發明乃提供有圖式。此些圖式乃為本發明揭露內容之一部分，其主要係用以說明實施例，並可配合說明書之相關描述來解釋實施例的運作原理。配合參考這些內容，本領域具有通常知識者應能理解其他可能的實施方式以及本發明之優點。圖中的元件並未按比例繪製，而類似的元件符號通常用來表示類似的元件。 To further illustrate the various embodiments, the invention is provided with the drawings. The drawings are a part of the disclosure of the present invention, and are mainly used to explain the embodiments, and the operation of the embodiments may be explained in conjunction with the related description of the specification. With reference to such content, those of ordinary skill in the art should be able to understand other possible embodiments and advantages of the present invention. Elements in the figures are not drawn to scale, and similar elements are generally used to represent similar elements.

首先，請一併參考第2圖及第3圖，其中第2圖顯示依據本發明之一實施例之可見光感測器之一系統方塊圖，第3圖顯示依據本發明之一實施例之可見光感測單元之一光學鍍膜與電路示意圖。如第2圖所示，可見光感測器1包括一第一光感測單元11、一第二光感測單元12及一光源辨識單元13。第一光感測單元11及第二光感測單元12皆與光源辨識單元13連接，輸出訊號至光源辨識單元13。 First, please refer to FIG. 2 and FIG. 3 together, wherein FIG. 2 shows a system block diagram of a visible light sensor according to an embodiment of the present invention, and FIG. 3 shows visible light according to an embodiment of the present invention. One of the sensing units is an optical coating and circuit schematic. As shown in FIG. 2 , the visible light sensor 1 includes a first light sensing unit 11 , a second light sensing unit 12 , and a light source identifying unit 13 . The first light sensing unit 11 and the second light sensing unit 12 are both connected to the light source identifying unit 13 and output signals to the light source identifying unit 13.

第一光感測單元11感測出一可見光頻譜內的光強度，並對應輸出一第一光感測訊號。如第3圖所示，在本實施例中，第一光感測單元11示例性地包括一可見光鍍膜111、至少一感光元件(PD1)113、及一類比數位轉換單元(ADC1)114。第一光感測單元11接收一入射光源000，經可見光鍍膜111後形成可見光112。 The first light sensing unit 11 senses the light intensity in a visible light spectrum and outputs a first light sensing signal correspondingly. As shown in FIG. 3, in the present embodiment, the first light sensing unit 11 illustratively includes a visible light coating 111, at least one photosensitive element (PD1) 113, and an analog-to-digital conversion unit (ADC1) 114. The first light sensing unit 11 receives an incident light source 000 and forms visible light 112 after being coated by the visible light 111.

需注意的是，第一光感測單元11並不限制於此，亦可為其 他結構，如光的過濾並不限定採可見光鍍膜111的方式進行。在本實施例中，感光元件113接收經可見光鍍膜111過濾後的光112，並感測經過濾後可見光頻譜的光強度，示例以類比轉數位電路ADC輸出第一光感測訊號。 It should be noted that the first light sensing unit 11 is not limited thereto, and may be The structure of the light, such as the filtering of light, is not limited to the manner in which the visible light coating 111 is applied. In the present embodiment, the photosensitive element 113 receives the light 112 filtered by the visible light coating 111 and senses the light intensity of the filtered visible light spectrum. For example, the first light sensing signal is output by the analog-to-digital circuit ADC.

第二光感測單元12感測不同於第一感測單元11感測之可見光頻譜的另一光頻譜的光強度，並對應輸出一第二光感測訊號。如第3圖所示，在本實施例中，第一光感測單元12示例性地包括一入射光源000、第二光感測元件12示例性地包括一不同於可見光鍍膜111之第二光鍍膜121、至少一感光元件(PD2)123、及一類比數位轉換單元(ADC2)124。第二光感測單元12接收一入射光源000，經第二光鍍膜121後形成第二頻譜光122。 The second light sensing unit 12 senses the light intensity of another light spectrum different from the visible light spectrum sensed by the first sensing unit 11 and correspondingly outputs a second light sensing signal. As shown in FIG. 3, in the present embodiment, the first light sensing unit 12 illustratively includes an incident light source 000, and the second light sensing element 12 illustratively includes a second light different from the visible light coating 111. The coating 121, at least one photosensitive element (PD2) 123, and an analog-to-digital conversion unit (ADC2) 124. The second light sensing unit 12 receives an incident light source 000 and forms a second spectral light 122 after passing through the second photo-coated film 121.

第二光感測單元12可為紅外光感測器、或感測波長545nm的光感測器，在此係以紅外光感測器為例，然本發明並不限於此。 The second light sensing unit 12 may be an infrared light sensor or a light sensor that senses a wavelength of 545 nm. Here, the infrared light sensor is taken as an example, but the invention is not limited thereto.

光源辨識單元13接收從第一光感測單元11及第二光感測單元12傳送來的第一、第二光感測訊號，計算第一、第二光感測訊號的輸出比率，以獲得供判斷光源種類之至少一非理想人眼視效函數以及光頻譜特徵，並且依據第一、第二光感測訊號的輸出比率判斷出一光源種類。在本實施例中，光源辨識單元13是以邏輯電路(硬體元件)或軟體方式為例來進行計算，判斷光源種類的機制，舉例來說是以所獲得的光頻譜特徵於一內建資料庫中進行比對，此資料庫中已預先存有各類照明光源的光頻譜特徵，如第4圖所示，然本發明並不限於此。 The light source identification unit 13 receives the first and second light sensing signals transmitted from the first light sensing unit 11 and the second light sensing unit 12, and calculates an output ratio of the first and second light sensing signals to obtain And determining at least one non-ideal human visual function and optical spectrum characteristic of the type of the light source, and determining a light source type according to an output ratio of the first and second optical sensing signals. In this embodiment, the light source identification unit 13 is a logic circuit (hardware component) or a software mode as an example to calculate the mechanism of the light source type, for example, the built-in data is obtained by using the obtained optical spectrum characteristics. In the library, the optical spectrum characteristics of various types of illumination sources are pre-stored in this database, as shown in Fig. 4, but the invention is not limited thereto.

請參考第5圖，其顯示依據本發明之另一實施例之可見光感測單元之一透明覆蓋、光學鍍膜與電路示意圖。與第3圖相比較，於該至少一感光元件外側，另增加一透明覆蓋件001，示例性地包括其上堆疊有該至少一濾光膜層及至少一色料層。外部的入射光源002經該透明覆蓋件001產生經過濾之入射光源000給第一光感測單元11與第二光感測單元12。 Please refer to FIG. 5, which shows a transparent cover, an optical coating and a circuit diagram of a visible light sensing unit according to another embodiment of the present invention. In addition to FIG. 3, a transparent cover 001 is additionally disposed outside the at least one photosensitive element, and exemplarily includes the at least one filter film layer and at least one color layer stacked thereon. The external incident light source 002 generates the filtered incident light source 000 to the first photo sensing unit 11 and the second photo sensing unit 12 via the transparent cover 001.

在第5圖之光源辨識單元13，包含考慮因透明覆蓋件001造成入射光源002至經過濾之入射光源000產生的誤差。以透明玻璃為例，透明玻璃對不同波長之穿透率(transmittance)如第6圖所示，正確依據第一、第二光感測訊號的輸出比率判斷出一光源種類。 The light source recognizing unit 13 of FIG. 5 includes an error caused by considering the incident light source 002 caused by the transparent cover 001 to the filtered incident light source 000. Taking transparent glass as an example, the transmittance of the transparent glass to different wavelengths is as shown in Fig. 6, and the type of the light source is correctly determined according to the output ratio of the first and second light sensing signals.

請參考第7圖，其顯示依據本發明之另一實施例之可見光感測器之一系統方塊圖。在此為了簡明說明本實施例，僅說明本實施例與前一實施例第2圖之差異。本實施例與前一實施例之差異在於可見光感測器2更包括一修正單元14接收第一光感測單元11與光源辨識單元13之輸出，並依據光源辨識單元13判斷出的光源種類修正第一光感測單元11之輸出，以使第一光感測單元11之輸出符合實際照度。 Please refer to FIG. 7, which shows a system block diagram of a visible light sensor according to another embodiment of the present invention. Here, in order to explain the present embodiment in a concise manner, only the difference between the present embodiment and the second embodiment of the previous embodiment will be described. The difference between the present embodiment and the previous embodiment is that the visible light sensor 2 further includes a correction unit 14 that receives the output of the first light sensing unit 11 and the light source identifying unit 13 and corrects the light source according to the light source identifying unit 13 The output of the first light sensing unit 11 is such that the output of the first light sensing unit 11 conforms to the actual illuminance.

另請參考第8圖，其顯示依據本發明之一實施例之可見光感測方法之一流程步驟示意圖。為了清楚說明本實施例，在此請一併參考第2圖之可見光感測器1，然本實施例並不限於實施於如第2圖所示之可見光感測器1。如第8圖中所示，首先，光源辨識單元13接收由一第一光感測單元11感測一可見光頻譜內的光強度，並對應輸出的一第一光感測訊號，及由以一第二光感測單元12感測不同於第一感測單元之感測光頻譜的光強度，並對應輸出一第二光感測訊號(步驟S100)。 Please also refer to FIG. 8 , which shows a schematic diagram of one of the flow steps of the visible light sensing method according to an embodiment of the present invention. In order to clarify the present embodiment, reference is made to the visible light sensor 1 of FIG. 2, but the embodiment is not limited to the visible light sensor 1 as shown in FIG. As shown in FIG. 8 , first, the light source identification unit 13 receives a light intensity in a visible light spectrum detected by a first light sensing unit 11 and correspondingly outputs a first light sensing signal, and The second light sensing unit 12 senses the light intensity different from the sensing light spectrum of the first sensing unit, and correspondingly outputs a second light sensing signal (step S100).

接著，光源辨識單元13計算第一、第二光感測訊號的輸出比率(步驟S110)，以獲得至少一非理想人眼視效函數以及光頻譜特徵，並且依據第一、第二光感測訊號的輸出比率判斷出一光源種類(步驟S120)。 Next, the light source recognizing unit 13 calculates an output ratio of the first and second photo sensing signals (step S110) to obtain at least one non-ideal human visual function and optical spectral characteristics, and according to the first and second optical sensing The output ratio of the signal determines a light source type (step S120).

另請參考第9圖，其顯示依據本發明之另一實施例之可見光感測方法之一流程步驟示意圖。為了清楚說明本實施例，在此請一併參考第7圖之可見光感測器2，然本實施例並不限於實施於如第7圖所示之可見光感測器2。如第8圖中所示，首先，光源辨識單元13接收由一第一光感測單元11感測一可見光頻譜內的光強度，並對應輸出的一第一光感測訊號，及由以一第二光感測單元12感測不同於第一感測單元之感測光頻譜的光強度，並對應輸出一第二光感測訊號(步驟S100)。 Please refer to FIG. 9 , which shows a schematic diagram of a process step of a visible light sensing method according to another embodiment of the present invention. In order to clarify the present embodiment, reference is made to the visible light sensor 2 of FIG. 7, but the embodiment is not limited to the visible light sensor 2 as shown in FIG. As shown in FIG. 8 , first, the light source identification unit 13 receives a light intensity in a visible light spectrum detected by a first light sensing unit 11 and correspondingly outputs a first light sensing signal, and The second light sensing unit 12 senses the light intensity different from the sensing light spectrum of the first sensing unit, and correspondingly outputs a second light sensing signal (step S100).

接著，光源辨識單元13計算第一、第二光感測訊號的輸出比率(步驟S110)，以獲得至少一非理想人眼視效函數以及光頻譜特徵，並且依據第一、第二光感測訊號的輸出比率判斷出一光源種類(步驟S120)。 Next, the light source recognizing unit 13 calculates an output ratio of the first and second photo sensing signals (step S110) to obtain at least one non-ideal human visual function and optical spectral characteristics, and according to the first and second optical sensing The output ratio of the signal determines a light source type (step S120).

繼而，修正單元14接收光源辨識單元13的訊號後，依據光源辨識單元13判斷出的光源種類修正第一光感測單元11之輸出，以使第一光感測單元11之輸出符合實際照度(步驟S130)。 Then, after receiving the signal of the light source recognizing unit 13, the correcting unit 14 corrects the output of the first photo sensing unit 11 according to the type of the light source determined by the light source recognizing unit 13, so that the output of the first photo sensing unit 11 conforms to the actual illumination ( Step S130).

是故，由上述中可以得知，本發明之可見光感測器及其感測方法可進行光源辨識之感測機制，並且可依據需求，更進一步針對可見光感測輸出進行修正，以符合實際照度。 Therefore, as can be seen from the above, the visible light sensor of the present invention and the sensing method thereof can perform the sensing mechanism of the light source identification, and can further correct the visible light sensing output according to the requirements to conform to the actual illumination. .

以上敍述依據本發明多個不同實施例，其中各項特徵可以單一或不同結合方式實施。因此，本發明實施方式之揭露為闡明本發明原則之具體實施例，應不拘限本發明於所揭示的實施例。進一步言之，先前敍述及其附圖僅為本發明示範之用，並不受其限囿。其他元件之變化或組合皆可能，且不悖于本發明之精神與範圍。 The above description is based on a number of different embodiments of the invention, wherein the features may be implemented in a single or different combination. Therefore, the disclosure of the embodiments of the present invention is intended to be illustrative of the embodiments of the invention. Further, the foregoing description and the accompanying drawings are merely illustrative of the invention and are not limited. Variations or combinations of other elements are possible and are not intended to limit the spirit and scope of the invention.

1‧‧‧可見光感測器 1‧‧‧ Visible light sensor

11‧‧‧第一光感測單元 11‧‧‧First light sensing unit

12‧‧‧第二光感測單元 12‧‧‧Second light sensing unit

13‧‧‧光源辨識單元 13‧‧‧Light source identification unit

Claims (10)

一種可見光感測器，包括：一第一光感測單元，感測一可見光頻譜內的光強度，並對應輸出一第一光感測訊號；一第二光感測單元，感測不同於該第一感測單元感測之該可見光頻譜的另一光頻譜的光強度，並對應輸出一第二光感測訊號；及一光源辨識單元，接收該第一、第二光感測訊號，計算該第一、第二光感測訊號的輸出比率，並依據該第一、第二光感測訊號的輸出比率判斷出一光源種類。 A visible light sensor includes: a first light sensing unit that senses a light intensity in a visible light spectrum and correspondingly outputs a first light sensing signal; and a second light sensing unit that senses different The first sensing unit senses the light intensity of another optical spectrum of the visible light spectrum, and correspondingly outputs a second light sensing signal; and a light source identifying unit receives the first and second light sensing signals and calculates The output ratios of the first and second photo-sensing signals are determined according to the output ratios of the first and second photo-sensing signals. 如申請專利範圍第1項所述之可見光感測器，其更包括一修正單元，接收該第一光感測單元與該光源辨識單元之輸出，並依據該光源辨識單元判斷出該光源種類修正該第一光感測單元之輸出。 The visible light sensor of claim 1, further comprising a correction unit, receiving the output of the first light sensing unit and the light source identification unit, and determining the light source type correction according to the light source identification unit The output of the first light sensing unit. 如申請專利範圍第1項或第2項所述之可見光感測器，其中該第二光感測單元為感測波長紅外光頻譜的光感測器。 The visible light sensor of claim 1 or 2, wherein the second light sensing unit is a light sensor that senses a spectrum of wavelength infrared light. 如申請專利範圍第1項或第2項所述之可見光感測器，其中該第二光感測單元為感測波長545nm的光感測器。 The visible light sensor of claim 1 or 2, wherein the second light sensing unit is a light sensor that senses a wavelength of 545 nm. 如申請專利範圍第1項或第2項所述之可見光感測器，其中該第一光感測單元與該第二光感測單元分別包括：至少一濾光膜層；至少一感光元件，接收經該濾光膜層過濾後的光，並感測經過濾後的光強度，以輸出一感光訊號；及一類比數位轉換單元，連接該至少一感光元件，接收該感光訊號，並將該感光訊號作類比數位形式轉換為該第一光感測訊號或該第二光感測訊號。 The visible light sensor of the first or second aspect of the invention, wherein the first light sensing unit and the second light sensing unit respectively comprise: at least one filter film layer; at least one photosensitive element, Receiving light filtered by the filter layer, and sensing the filtered light intensity to output a photosensitive signal; and an analog-digital conversion unit connecting the at least one photosensitive element, receiving the photosensitive signal, and The photosensitive signal is converted into the first optical sensing signal or the second optical sensing signal by analog digital form. 如申請專利範圍第5項所述之可見光感測器，其更包括： 一透明覆蓋件，設置於該至少一感光元件外側，其上堆疊有該至少一濾光膜層及至少一色料層，使該可見光感測器外部的光經該至少一濾光膜層及該至少一色料層過濾、分色而由該至少一感光元件感測。 The visible light sensor of claim 5, further comprising: a transparent cover member disposed on the outer side of the at least one photosensitive element, wherein the at least one filter film layer and the at least one color layer are stacked thereon, and the light outside the visible light sensor passes through the at least one filter layer and the At least one color layer is filtered and separated and sensed by the at least one photosensitive element. 一種可見光感測方法，包括下列步驟：接收由一第一光感測單元感測一可見光頻譜內的光強度，並對應輸出的一第一光感測訊號，及由以一第二光感測單元感測不同於該第一感測單元感測之該可見光頻譜的另一光頻譜的光強度，並對應輸出的一第二光感測訊號；計算該第一、第二光感測訊號的輸出比率；及依據該第一、第二光感測訊號的輸出比率判斷出一光源種類。 A visible light sensing method includes the steps of: receiving a light intensity in a visible light spectrum detected by a first light sensing unit, and correspondingly outputting a first light sensing signal, and sensing by a second light The unit sensing is different from the light intensity of the other optical spectrum of the visible light spectrum sensed by the first sensing unit, and correspondingly outputting a second light sensing signal; calculating the first and second light sensing signals An output ratio; and determining a light source type based on an output ratio of the first and second photo sensing signals. 如申請專利範圍第7項所述之可見光感測方法，其中，該計算該第一、第二光感測訊號的輸出比率之步驟包括獲得供判斷該光源種類之至少一非理想人眼視效函數以及光頻譜特徵。 The visible light sensing method of claim 7, wherein the calculating the output ratio of the first and second light sensing signals comprises obtaining at least one non-ideal human visual effect for determining the type of the light source Function and optical spectrum characteristics. 如申請專利範圍第7項所述之可見光感測方法，其更包括：依據判斷出的該光源種類修正該第一光感測單元之輸出。 The visible light sensing method of claim 7, further comprising: correcting an output of the first light sensing unit according to the determined type of the light source. 如申請專利範圍第9項所述之可見光感測方法，其中，修正該第一光感測單元之輸出步驟係針對該第一光感測單元的至少一非理想人眼視效函數進行修正。 The visible light sensing method of claim 9, wherein the correcting the output step of the first light sensing unit corrects at least one non-ideal human visual effect function of the first light sensing unit.
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