201206245 六、發明說明： 【發明所屬之技術領域】 本發明係屬於小型投射燈的設計及控制範嘴，主要以KGB LED作為投射燈的發光體，藉由微控制器及定電流晶片的整 合，以達成可規晝調變投射燈進行全彩之投射功能，增進投射 燈的功能及應用場合。 【先前技術】201206245 VI. Description of the Invention: [Technical Field] The present invention belongs to the design and control of a small projection lamp, and mainly uses a KGB LED as an illuminator for a projection lamp, and is integrated by a microcontroller and a constant current chip. In order to achieve the full-color projection function of the adjustable projection lamp, the function and application of the projection lamp are enhanced. [Prior Art]
投射燈廣泛應用於展示櫃、櫥穿及各型裝潢需求場合， 以襯托出展示物品的特色或營造出郎的氣氛。傳制投&燈 以鹵素燈為主，每每於展示櫃上投射出寶石的璀燦或營造出空 間的溫馨氣氛。惟此習用的鹵素燈屬高耗電產品，且其只能投 射出單色之色澤，朗上有其揭祕。隨著節能減碳的潮流， 以LEf為發光源的投射燈設計亦衍然成為投射燈的主流，其低 耗電1的特性為地球的環保注入了 一股新的力量。如M3i43〇〇 公告案’即結合了單色·及驅動電路板，辅以散熱之設計製 造出LED投射燈。又如M259997之省電投射燈泡，以冷陰極管 及反光板達成投射燈的設計，強調其可變化較多發光 擇。但在眾多的投射燈設計中，仍難跳脫；== 式，在需要多種色彩顯示的應用場合，必須由不同顏色的投色 燈組合才能達到所需功能。 / 【發明内容】 為了改善習用技藝中投射燈僅具備單一顏色投射的侷限 性，本發明的目的在於設計一以RGB Lm)為發光單元的投射 燈，藉由調變RGB LED三顏色不同的功率輸出控制，以達成各 種色彩變化的功能。Projection lamps are widely used in display cabinets, cabinets and various types of decorative occasions to bring out the characteristics of the display items or create a ambience. The bulbs and lamps are based on halogen lamps, each of which projects the jewels on the display cabinet or creates a warm atmosphere. However, the conventional halogen lamp is a high-power-consumption product, and it can only project a single color, and it has its secret. With the trend of energy saving and carbon reduction, the design of the projection lamp with LEf as the light source has become the mainstream of the projection lamp. Its low power consumption 1 has injected a new force into the earth's environmental protection. For example, the M3i43〇〇 Announcement combines a monochrome and drive circuit board with a heat sink design to produce an LED projection lamp. Another example is the power-saving projection bulb of M259997. The cold cathode tube and the reflector are used to achieve the design of the projection lamp, emphasizing that it can change more illumination options. However, in many projection lamp designs, it is still difficult to escape; ==, in applications that require multiple color displays, it is necessary to combine the color of the different colors to achieve the desired function. SUMMARY OF THE INVENTION In order to improve the limitation of a single color projection in a conventional art, the object of the present invention is to design a projection lamp with RGB Lm as a light-emitting unit, by modulating the power of three colors of RGB LEDs. Output control to achieve a variety of color changes.
為達成上述之目的’本發明之設計主要包括有一投射燈座 及一可調變RGB LED發光單元所構成。發光單元包含一 RGB LED 電路板，其上佈有複數個RGB LE：D及定電流控制IC ; 一主控 電路板’其上佈有一主控晶片，並連接必要之控制線到RGB LED 201206245 主控電路板上連接有—按_投射燈座表面，以循環 按壓產生預設之燈色變換。該燈座設計為環形構造，例如 圓柱體、傘形等習知之構形，燈座底部可供組設RGB LED電控 板及主控電路板，燈殼底部引出電源線連接到插座，燈座側邊 鑲嵌有一按鈕連接到主控電路板，以進行燈色控制之切換。 為使貴審查委員進-步了解本個之技娜徵及功效，兹 進一步配合實施例作說明如下。 【實施方式】 一如圖一、二所示，為本發明全彩RGB LED投射燈的立體 示意圖及分解圖，主要包括一燈座1〇&RGB LED發光單元 201燈座10為一中空圓型殼體101，内部適當深處環設有一 ，環102 ’擂環102為沿殼體内部向内設置之突起，俾供發光 單元20向内置入之固定支撐。殼體1〇1底部則設有一電源通 孔103，以供電源線1〇4之穿設。另於殼體1〇1表面設有一通 孔105 ’該通孔105可供一按鈕開關1〇6設置，中空殼體之開 口端可依需求增設一透明鏡片1〇7。 RGB LED發光單元20包括有一 RGB LED電路板2〇1及 主控電路板220，電路板201其上佈有複數個RGB LED 2〇2 排列於電路板201表面’電路板2〇1另面則佈有定電流控制冗 203與信號連接器204 ;主控電路板220，其上佈有與電路板 201連接之連接器221及主控晶片222, RGB LED電路板表面 可增設一反光片205 ’以增加投射之亮度。RGB LED是將紅、 藍、綠二色LED —體封裝於一單體内。例如本發明實施例以 ADL-5050RGB進行設計，如圖三之示意圖所示，其内部一體 封裝有R、G、B三色之LED，分別對RGB三個顏色的LED 進行灰度的調整，即可變化出所欲顏色的顯示。各色澤灰度調 節的解析度決定RGB LED所能顯示顏色的能力。本發明係將 圖三中LED的陽極連接至電源端，而陰極連接到具pWM調 變能力的定電流1C。如圖四所示發光單元控制之電路示意圖， DM632晶片具備16個輸出通道，每一通道可丨6位元脈寬調 201206245 變(PWM)導通功率，三個通道可控制一顆RGBLED的色澤變 化。本發明實施例中以四顆RGB LED為列，因此所需之 DM632晶片為一顆。如所需之RGB LED數超過五顆，可視需 要串接複數個DM632晶片，以串列通信協定傳送控制命令。In order to achieve the above object, the design of the present invention mainly comprises a projection lamp holder and a variable-variable RGB LED illumination unit. The illuminating unit comprises an RGB LED circuit board on which a plurality of RGB LE:D and constant current control ICs are disposed; a main control circuit board is provided with a main control chip and the necessary control lines are connected to the RGB LED 201206245 main Connected to the control board - press _ to project the surface of the lamp holder, and press the cycle to generate a preset lamp color change. The lamp holder is designed as a ring structure, such as a cylindrical body, an umbrella shape, and the like. The bottom of the lamp holder can be provided with an RGB LED electronic control board and a main control circuit board, and the power cable is connected to the socket at the bottom of the lamp housing, and the lamp holder is connected. The side is inlaid with a button connected to the main control board for switching the color control. In order to enable your review committee to further understand the features and functions of this technology, we will further explain the following examples. [Embodiment] As shown in FIG. 1 and FIG. 2, it is a perspective view and an exploded view of a full-color RGB LED projection lamp of the present invention, which mainly includes a lamp holder 1 〇 & RGB LED illumination unit 201 lamp holder 10 is a hollow circle The housing 101 has a ring in the inner portion of the ring, and the ring 102' is formed as a protrusion extending inwardly along the interior of the housing, and the light-emitting unit 20 is fixedly supported by the built-in light. A power supply hole 103 is provided at the bottom of the housing 1〇1 for the passage of the power supply line 1〇4. In addition, a through hole 105 is disposed on the surface of the casing 1'. The through hole 105 is provided for a button switch 1〇6, and a transparent lens 1〇7 can be added to the opening end of the hollow casing. The RGB LED lighting unit 20 includes an RGB LED circuit board 2〇1 and a main control circuit board 220. The circuit board 201 is provided with a plurality of RGB LEDs 2〇2 arranged on the surface of the circuit board 201. The circuit board 2〇1 is on the other side. The main control circuit board 220 is provided with a connector 221 and a main control chip 222 connected to the circuit board 201, and a reflective sheet 205 can be added to the surface of the RGB LED circuit board. To increase the brightness of the projection. The RGB LED encapsulates the red, blue and green LEDs into a single body. For example, the embodiment of the present invention is designed with ADL-5050RGB, as shown in the schematic diagram of FIG. 3, and the LEDs of three colors R, G, and B are integrally packaged therein, and gray scale adjustment is performed on the LEDs of three colors of RGB, that is, The display of the desired color can be changed. The resolution of each shade of gray is determined by the ability of the RGB LED to display colors. The present invention connects the anode of the LED of Figure 3 to the power supply terminal and the cathode to the constant current 1C with pWM modulation capability. As shown in the circuit diagram of the lighting unit control shown in Figure 4, the DM632 chip has 16 output channels, each channel can be 6-bit pulse width modulation 201206245 variable (PWM) conduction power, and three channels can control the color change of one RGB LED. . In the embodiment of the present invention, four RGB LEDs are listed, so the required DM632 wafer is one. If the number of RGB LEDs required is more than five, it may be necessary to serially connect a plurality of DM632 chips to transmit control commands in a serial communication protocol.
圖五為DM632晶片工作的簡單示意圖，j)CK為串列通訊 時脈，每一通道的灰度控制命令為16位元，16通道共需256 位元，因此控制各顆RGB LED的燈色變化時，只需依RGB 的色碼表，預先將每一燈色的色碼值存於記憶體，將256位元 的命令依序自DAI傳入，再行下達LAT的栓鎖命令，即可達 成各顆RGB LED的燈色控制。圖五的REXT為LED輸出電 流的設定，連接一限流電阻到地。SOMODE/GCK則為串列輸 模式設定或外接時脈設定，本發明並未使用。 以本發明之實施例為例，如預設之切換顏色為1〇色，配 合DM632的晶片為16通道，共需i〇xi6 WORD的命令陣列， 其可於程式中宣告顏色陣列如下，主程式再依操作將對應的顏 色陣列傳送到定電流控制板，即可達成燈色的控制。 const unsigned int COLOR[10][16]={ {Oxfe00,〇xfc〇〇,〇xfc〇〇,〇xf8〇〇,〇xf8〇〇5〇xf〇〇〇}〇xe〇〇〇}〇xe〇〇〇5〇xc〇〇〇}〇x8〇〇〇〇x8〇〇〇〇 xOOOO,0x0000,〇x〇〇〇〇s〇x〇〇〇〇5〇x〇〇〇〇}5 ， i〇x”，Ox卿xffif，〇xff7F，〇xfffi；〇x卿爾加戰㈨卿潇加卿狀雖卿以 ffe，0xbffc，0xfifc }， i°ii^i^〇xffi,〇xffi,0xffefs〇x^0xffi5〇x^0x^0x^0x^0jrfdff»〇xffii〇xff 圖六即為控制板主控程式的流程圖。#1〜#3方塊為主控晶片 222基本10接腳的輸出入設定、SPI串列通信模式規晝，以及 初始顯示燈色的設定。本發明以8位元的SPJ模式通信，因此 所欲顯示的COLOR陣列16 WORD讀取後，必須分為32次透 過SPI接腳傳送’圖示中所標示之spI傳送迴圈#4〜#8即負責 此一功能。#8方塊送出栓鎖信號後，如圖五所示，此時RGB LED的顯示控制即由DM632晶片所負責。#9方塊則偵測是否[“ 6 201206245 有按鈕按下，沒有按鈕操作則進入等待模式，直到有按钮按 下。#10〜#14的功能為按鈕偵測，若是短按鈕，則直接將顏色 陣列的索引值加一’以切換到新的顏色顯示。而若按壓時間超 過一預定長度，例如2秒鐘’則關掉燈號，即所有DM632通 道的輸出功率為0，再進入#9的等待按鍵迴圈βFigure 5 is a simplified diagram of the operation of the DM632 chip. j) CK is the serial communication clock. The gray level control command for each channel is 16 bits, and the 16 channels require 256 bits. Therefore, the color of each RGB LED is controlled. When changing, simply store the color code value of each light color in the memory according to the color code table of RGB, and then input the 256-bit command from the DAI in order, and then issue the LAT latch command. Light color control of each RGB LED can be achieved. REXT in Figure 5 is the setting of the LED output current, connecting a current limiting resistor to ground. SOMODE/GCK is a serial transmission mode setting or an external clock setting, which is not used in the present invention. For example, in the embodiment of the present invention, if the preset switching color is 1 color, and the DM632 chip is 16 channels, a command array of i〇xi6 WORD is required, which can declare the color array in the program as follows, the main program According to the operation, the corresponding color array is transmitted to the constant current control board to achieve the control of the light color. Const unsigned int COLOR[10][16]={ {Oxfe00,〇xfc〇〇,〇xfc〇〇,〇xf8〇〇,〇xf8〇〇5〇xf〇〇〇}〇xe〇〇〇}〇xe〇 〇〇5〇xc〇〇〇}〇x8〇〇〇〇x8〇〇〇〇xOOOO,0x0000,〇x〇〇〇〇s〇x〇〇〇〇5〇x〇〇〇〇}5 , i〇x ", Ox Qing xffif, 〇xff7F, 〇xfffi; 〇x Qinger Jia war (nine) Qing 潇 plus Qing qing although ffe, 0xbffc, 0xfifc }, i°ii^i^〇xffi, 〇xffi, 0xffefs〇x^ 0xffi5〇x^0x^0x^0x^0jrfdff»〇xffii〇xff Figure 6 is the flow chart of the control board main control program. #1~#3 block is the main control chip 222 basic 10 pin input and output settings, SPI The serial communication mode specification and the initial display color setting. The present invention communicates in an 8-bit SPJ mode, so the COLOR array 16 WORD to be displayed must be divided into 32 times through the SPI pin. The spI transmission loops #4~#8 indicated in the figure are responsible for this function. After the #8 block sends the latch signal, as shown in Figure 5, the display control of the RGB LED is responsible for the DM632 chip. #9方块 detects if [" 6 201206245 has button press , without the button operation, enter the standby mode until a button is pressed. The function of #10~#14 is button detection. If it is a short button, the index value of the color array is directly added by one to switch to the new color display. If the pressing time exceeds a predetermined length, for example, 2 seconds', the signal is turned off, that is, the output power of all DM632 channels is 0, and then the waiting button loop of #9 is entered.
以本發明使用之DM632晶片’由於其pwm解析度為16 位元’ RGB三色所能解析之顏色解析度達248，已超過1類肉 眼所能辨別的範圍。因此本發明進一步利用DM632的特性， 使投射燈亦能具備調整亮度的功能。其主要功能說明如丁： 如圖五所示，DM632的每一通道灰度控制為16位元，但 在設計上可以只使用8位元，如此顏色的變化仍可達到224 色’滿足投射燈的應用需求。如果要得到最大的亮度，此8位 元應位於最高有效位元(如圖七(a)所示），即最左邊的8位元， 而其他8位元則設為〇。但如果將此8位元從第二最高有效位 元開始(如圖七(b)所示）’則此時的輸出功率即降到一半。若如 圖七(i)所示，置於最低有效位元的八個Wt，其顯示亮度就只 有圖七(a)的256分之一了。而圖七①為〇功率輸出模式，即燈 號全滅。 依此原理，本發明將顏色陣列建成8位元架構，如下所示： const char COLOR[1〇][16]={ {Oxfe,Oxfc,Oxfc5Oxf8,Oxf8,〇xfD,(keO,OxeO,OxcO,Oxfif,〇x8〇5〇x〇〇5〇x〇〇5〇x〇〇〇^ {Oxfif,Oxfif,Oxfif,OxfF5Oxfif,〇xfi；〇xff;〇xfF,〇xfif5〇xfif,〇xff;〇xefj〇xff 〇xff〇xbf ^ s {OxfnOxfb^xfiF^Oxfi^Oxff^Ox^Oxff^o^o^^^^^ 此時進行顏色陣列讀取時，將依亮度的需求，對讀入的陣列資 料作處理。參考圖八，步驟#10偵測按鈕按下後，步驟#11偵 測按紐是否放開’步驟#12同時啟動迴圈計數，當迴圈計數值 大於一預叹值時，按纽命令解讀為亮度的調整。此時步驟糾4 將讀進的顏色陣列依圖七的位元格式依序處理，並將處理後的 資料以spi模式輸出到DM632即時調整RGB LED的亮度。 201206245 只要按紐沒，開，燈色會依圖七格式從最亮慢慢變化到全滅， 使用者觀察⑦度到合適值即可放開按紐，此後投射燈即可維持 在設定的亮度顯示。 綜上所述，本案深具產業之利用性，且查市面上之相關產 品及已核紅專利公告巾’並未見與本發明實質之技術特徵相 同者，亦合乎新穎性及進步性之法定專利申請要件。爰依法提 出專利申凊’懇请貴審查委員能早曰賜予本案專利，以碟保 申請人之權益。惟本案所揭露者，僅為本發明之較佳實施例 自不能以此限定本發明之權利範圍’凡依本發明精神所 效變更或修飾者’仍涵蓋於本發明之申請專利範圍中。 201206245 【圖式簡單說明】 第一圖RGB LED投射燈立體示意圖 第二圖RGB LED投射燈構件分解示意圖 第三圖RGB LED接腳示意圖 第四圖RGB LED投射燈控制電路示意圖 第五圖DM632定電流1C方塊圖 第六圖RGB LED投射燈軟體控制流程圖 第七圖RGB LED投射燈亮度控制示意圖 第八圖亮度調整之RGB LED投射燈軟體控制流程圖 【主要元件符號說明】 10投射燈燈座 101殼體 102擋環 103電源通孔 104電源線 105按紐通孔 106按纽 107透光片 20發光單元 201 RGB LED電路板The DM632 wafer used in the present invention has a color resolution of 248 due to its pwm resolution of 16 bits' RGB three colors, which exceeds the range that can be discerned by a class of human eyes. Therefore, the present invention further utilizes the characteristics of the DM632, so that the projection lamp can also have the function of adjusting the brightness. The main function description is as shown in Figure 5. As shown in Figure 5, the gray level of each channel of the DM632 is controlled to 16 bits, but only 8 bits can be used in design. The color change can still reach 224 colors. Application requirements. If you want to get the maximum brightness, this 8-bit should be in the most significant bit (as shown in Figure 7(a)), which is the leftmost 8-bit, and the other 8-bit is set to 〇. However, if the 8-bit is started from the second most significant bit (as shown in Fig. 7(b)), the output power at this time is reduced to half. As shown in Figure 7(i), the eight Wt placed in the least significant bit has a display brightness of only 256 of Figure 7(a). Figure 7 is the power output mode, that is, the lamp is completely off. In accordance with this principle, the present invention constructs a color array into an 8-bit architecture as follows: const char COLOR[1〇][16]={ {Oxfe, Oxfc, Oxfc5Oxf8, Oxf8, 〇xfD, (keO, OxeO, OxcO, Oxfif, 〇x8〇5〇x〇〇5〇x〇〇5〇x〇〇〇^ {Oxfif, Oxfif, Oxfif, OxfF5Oxfif, 〇xfi; 〇xff; 〇xfF, 〇xfif5〇xfif, 〇xff; 〇xefj 〇xff 〇xff〇xbf ^ s {OxfnOxfb^xfiF^Oxfi^Oxff^Ox^Oxff^o^o^^^^^ At this time, when the color array is read, the array data to be read will be read according to the brightness requirement. For processing, refer to Figure 8. After step #10 detects that the button is pressed, step #11 detects whether the button is released. Step #12 starts the loop count at the same time. When the loop count value is greater than a pre-sigh value, press The new command is interpreted as the brightness adjustment. At this time, the step 4 corrects the read color array according to the bit format of Figure 7, and outputs the processed data to the DM632 in real time to adjust the brightness of the RGB LED. 201206245 As long as the button is not turned on, the color of the light will change from the brightest to the completely off according to the format of Figure 7. The user can open the button after observing 7 degrees to the appropriate value, and then the projection lamp can be maintained. In summary, the case is of industrial applicability, and the relevant products on the market and the patented red-patented notices have not seen the same technical features as the essence of the present invention, and are also novel and Progressive statutory patent application requirements. 提出Proposed patent application in accordance with the law' 恳Please ask your review board to give the patent as soon as possible, in order to protect the rights of the applicant. However, the disclosure of this case is only a preferred embodiment of the present invention. The scope of the present invention is not limited by the scope of the present invention. Any change or modification according to the spirit of the present invention is still covered by the scope of the present invention. 201206245 [Simplified Schematic] FIG. The second figure RGB LED projection lamp component decomposition diagram The third diagram RGB LED pin diagram The fourth diagram RGB LED projection lamp control circuit diagram The fifth diagram DM632 constant current 1C block diagram sixth figure RGB LED projection lamp software control flow chart seventh Figure RGB LED projection lamp brightness control diagram Eighth diagram brightness adjustment RGB LED projection lamp software control flow chart [main component symbol description] 10 projection lamp 102 snap ring 101 of the housing 103 through hole 104 power supply line 105 through the button hole 106 button 107 light-transmitting sheet 201 RGB LED light-emitting unit 20 of the circuit board
202 RGB LED 203定電流控制IC 204連接器 205反光片 220主控電路板 221連接器 222主控晶片202 RGB LED 203 constant current control IC 204 connector 205 reflector 220 main control board 221 connector 222 master chip