200923272 九、發明說明： 【發明所屬之技術領域】 本發明係關於一種發光二極體燈具，尤其是一種可調 整色溫之發光二極體燈具。 【先前技術】 隨著南功率發光一極體晶片之發展，發光二極體晶片 挾其低耗電、小尺寸、壽命長之優點，逐步應用於照明領 域，取代傳統螢光燈、日光燈，成為照明產業之主流產品。 雖然發光一極體晶片已經被應用於日常照明，但是， 現今市面上的發光二極體燈具所能提供之照明，多視其所 搭配之發光二極體燈而定。也就是說，若是所搭配的是冷 白光之發光一極體燈，此發光二極體燈具就只能產生冷白 光的照明’若是搭配的是暖白光之發光二極體燈，此發光 二極麟具H產生暖自光的卿。朗者轉更換所 使用之發光二極體燈，否則，無法改變發光二極體燈具之 照明色溫。 不過，準備不同色溫的發光二極體燈會造成成本的提 高。又，更換發光二極體燈具所使用之發光二極體燈，會 造成使用者使用上料方便。此外，即使準備額外之發光 二極體燈’以也僅能提供二種獨色溫魄擇，而無法 調整出其他不同的色溫。 … 爰是，如何使發光二極體燈具可以隨著使用者之需 求’調整所欲之照明色溫，是本領域技術人員虽欲解決之 200923272 問題。 【發明内容】 本發明之主要目的在於提供一種可直接透過發光二極 體燈具上之旋蛾按鍵’不需更換發光二極舰，即可調 整色溫之發光二極體燈具。 本發明提供之可調整色溫之發光二極體燈具包括至少 第一藍光發光二極體晶片、至少一第二藍光發光二極體 晶=、一封膠體與一控制電路。其中，第二藍光發光二極 體晶片之發献長長於第—藍紐光二極體之發光波長。 封膠體係晴覆蓋第—藍光發光二極體晶片與第二藍光發 光二極體晶片。紅，封雜崎雜有螢光粉，用以將第 γ藍光發光二極體晶片與第二藍光發光二極體晶片之發 光，分別轉換為冷白光與暖白光。控制電路係用以控制第 一藍光發光二極體晶片與第二藍光發光二極體晶片之發光 狀態’以產生不同色溫與亮度之照明。 在本發明之一實施例中，控制電路係透過控制第一藍 光發光二極體晶片或第二藍光發光二極體之發光亮度，以 產生不同色溫之照明。舉例來說，控制電路可透過控制第 一藍光發光二極體晶片之發光亮度與第二藍光發光二極體 疋否發光，或者透過控制第一藍光發光二極體晶片是否發 光與第二藍光發光二極體之發光亮度，以產生不同色溫之 照明。 在本發明之另一實施例中，控制電路係透過控制這些 弟藍光發光二極體晶片中，發光之第一藍光發光二極體 7 200923272 之數量，以產生不同色溫之照明。 在本發明之另一實施例中，控制電路係透過控制這些 第二藍光發光二極體晶片中，發光之第二藍光發光二極體 之數量，以產生不同色溫之照明。 關於本發明之優點與精神可以藉由以下的發明詳述及 所附圖式得到進一步的瞭解。 【實施方式】 第一圖係本發明可調整色溫之發光二極體燈具10 — 較佳實施例之方塊示意圖。如圖中所示，此可調整色溫之 發光二極體燈具10具有一發光二極體模組100、一控制電 路200與一電源供應器300。控制電路200係用以控制發 光二極體模組1〇〇之發光狀態，以產生不同色溫與亮度之 照明。電源供應器300係用以將外界輸入之交流電源，轉 換為可供發光二極體模組1〇〇利用之直流電。 第二圖係本發明發光二極體模組1〇〇 一較佳實施例之 剖面示意圖。如圖中所示，此發光二極體模組1〇〇具有一 鋁基板120、一半導體基板14〇、至少一第一藍光發光二極 體晶片16G (圖中係以二個第-藍光發光二極體晶片為 例）、至少一第二藍光發光二極體晶片18〇 (圖中係以二個 第二藍光發光二極體晶片為例）與一封膠體19〇。鋁基板 120上具有一凹槽122 ’半導體基板14〇係設置於凹槽122 之底部。第-藍光發光二極體晶片繼與第二藍光發光二 極體晶片180係設置於半導體基板14〇上。並且，第二藍 光發光二麵晶片180之發級長長於第4光發光二極 200923272 體晶片160之發光波長。 封耀·體190係填充於凹槽122内，同時覆蓋半導體基 板140、第一藍光發光二極體晶片16〇與第二藍光發光二 極體晶片180。並且，封膠體19〇内係摻雜有螢光粉，用 以將第-藍光發光二極體晶片⑽與第二藍光發光二極體 晶片180之藍光發光，分別轉換為冷白光與暖白光。就一 較佳實施例而言，第一藍光發光二極體晶片16〇之發光波 段為400nm~460nm，第二藍光發光二極體晶片18〇之發光 波段為460nm〜480nm，轉換後產生之冷白光與暖白光之色 溫範圍分別為2500K〜3500K與5500K〜7500K。此外，本發 明之發光二極體模組1〇〇在封膠體190之上更覆蓋有一透 明膠層195。此透明膠層195具有一凸面，以會聚第一藍 光發光二極體晶片160與第二藍光發光二極體晶片18〇所 產生之光線。 第三圖係第一圖之發光二極體燈具一較佳實施例之電 路圖。如圖中所示，此發光二極體燈具之二個第一藍光發 光二極體晶片160係串接至控制電路200。二個第二藍光 發光二極體晶片180亦串接至控制電路200。可透過控制 電路200分別控制流經第一藍色發光二極體晶片16〇之電 流值與流經第二藍色發光二極體晶片180之電流值，以產 生不同色溫的照明。舉例來說，可串接一可變電阻至第一 藍色發光二極體晶片160。透過改變此可變電阻之電阻 值，即可調整流經第一藍色發光二極體晶片160之電流 值。此外’由於流經各個第一藍光發光二極體晶片160之 電流相同’串接在一起之各個第一藍光發光二極體晶片 200923272 160大致具有相同之發光亮度。同理，串接在一起之各個 第二藍光發光二極體晶片180亦大致具有相同之發光亮 度。 值得注意的是，本實施例中只需透過控制電路2〇〇控 制第一藍光發光二極體晶片160之發光亮度或是第二藍光 發光二極體晶片180之發光亮度，即可產生不同色溫之照 明。舉例來說，可透過控制電路200控制第一藍光發光二 極體晶片160之發光亮度與第二藍光發光二極體晶片18〇 是否發光，來控制發光二極體燈具1〇之照明色溫與亮度。 關於控制第一藍光發光一極體晶片180是否發光，舉例來 說’可串接一開關至此第二藍光發光二極體晶片，導通此 開關即可使第二藍光發光二極體晶片18〇發光。在第二藍 光發光一極體晶片180並未發光之情況下，此發光二極體 燈具10係產生冷白光。在第二藍光發光二極體晶片18〇 發光之情況下，此發光二極體燈具10可透過調整第一藍光 發光二極體晶片160之發光亮度，將此發光二極體燈具 之照明色溫由暖白光往冷白光調整。同時，第一藍光發光 二極體晶片160之發光亮度越大，整個發光二極體燈具1〇 之發光凴度也就越大。同理，本實施例之發光二極體燈具 亦可透過控制第一藍光發光二極體晶片160是否發光與第 二藍光發光二極體晶片180之發光亮度，以產生不同色溫 與亮度之照明。 第四圖係本發明可調整色溫之發光二極體燈具1〇另 一較佳實施例之電路圖。如圖中所示，各個第一藍光發光 二極體晶片160係分別連接至控制電路2〇〇，各個第二藍 200923272 光發光一極體晶片180係串接至控制電路200 。可透過控 制電路200分別控制這些第-藍光發光二極體晶片160是 否發，’亦即可決定發光之第-藍光發光二極體晶片160 之數量’以產生不同色溫與亮度之照明。進—步來說，若 是各個第二藍光發光二極體晶片180都發光，此發光二極 體f具10之發光色度將會隨著發光之第—藍光發光二極 體晶片160之數量增加，由暖白光朝向冷白光調整。同時， 發光一極體燈具10之發光亮度也會隨著發光之第一藍光 發光二極體晶片16〇之數量增加而提高。同理，亦可將各 個第一藍光發光一極體晶片180分別連接至控制電路 200，各個第一藍光發光二極體晶片16〇串接至控制電路 2〇〇，透過控制電路200控制這些第二藍光發光二極體晶片 180中，發光之第二藍光發光二極體晶片18〇之數量，以 產生不同色溫與亮度之照明。 第五圖係本發明可調整色溫之發光二極體燈具又 車乂佳實施例之電路圖。如圖中所示，各個第一藍光發光 二極體晶片160係分別連接至控制電路2〇〇，各個第二發 光二極體晶片180係分別連接至控制電路2〇〇。可透過控 制電路200控制這些第一藍光發光二極體晶片16〇與這些 第二藍光發光二極體晶片180中，發光之第一藍光發光二 極體晶片160與第二藍光發光二極體晶片18〇之數量，以 產生不同色溫與凴度之照明。舉例來說，假設第一藍光發 光二極體晶片160與第二藍光發光二極體晶片18〇具有相 同之發光亮度。在轉發光之發S二極體晶⑽，180的 數量的情況下，可透過控制電路200調整發光之第一藍光 200923272 發光二極體晶片160與第二藍光發光二極體晶片180之數 量比，以改變其色溫。亦即，此發光二極體燈具10可以在 固定亮度之情況下，調整照明之色溫。此外，在維持發光 之第一藍光發光二極體晶片160與第二藍光發光二極體晶 片180之數量比的情況下，可透過控制電路200調整發光 之發光二極體晶片160,180的數量，以改變其發光亮度。 亦即’此發光二極體燈具1〇可以在固定色溫之情況下，調 整照明之亮度。 請參照第一與二圖所示，本發明之發光二極體燈具1〇 只需使用一種兼具有冷白光發光與暖白光發光之發光二極 體模組100 ’搭配適當之電路設計’使用者就可以依據其 需求調整發光二極體燈具10之照明的色溫。而不需準備不 同色溫的發光二極體燈，也不需要拆換發光二極體燈具所 使用之發光二極體燈。因此，可以提高使用者使用之便利 性’並且降低裝置成本。 以上所述係利用較佳實施例詳細說明本發明，而非限 制本發明之範®，而且熟知此類技藝人士皆能明瞭，適合 而作些微的改變及調整，仍將不失本發 ; 不脫離本發明之精神和範圍。 要麟在亦 【圖式簡單說明】 > 調整色溫之發光二極體燈具一較佳 第一圖係本發明可 實施例之方塊示意圖； 一立第二圖係第i之發光二極體燈—触實施例之剖面 不意圖； 12 200923272 第三圖係第一圖之可調整色溫之發光二極體燈具之電 路圖； 第四圖係本發明可調整色溫之發光二極體燈具另一較 佳實施例之電路圖；以及 第五圖係本發明可調整色溫之發光二極體燈具又一較 佳實施例之電路圖。 【主要元件符號說明】 發光二極體燈具10 發光二極體模組100 鋁基板120 凹槽122 半導體基板140 第一藍光發光二極體晶片160 第二藍光發光二極體晶片180 封膠體190 透明膠層195 控制電路200 電源供應器300 13200923272 IX. Description of the Invention: [Technical Field] The present invention relates to a light-emitting diode lamp, and more particularly to a light-emitting diode lamp with adjustable color temperature. [Prior Art] With the development of the South Power LED, the LED chip has the advantages of low power consumption, small size and long life, and is gradually applied to the field of illumination, replacing traditional fluorescent lamps and fluorescent lamps. The mainstream products of the lighting industry. Although the illuminating one-pole wafer has been used for daily illumination, the illumination provided by the illuminating diode lamp on the market today depends on the illuminating diode lamp that it is equipped with. That is to say, if it is matched with a cool white light, the light-emitting diode lamp can only produce cold white light illumination. If it is matched with a warm white light LED lamp, this light-emitting diode Lin H produces warm and light. The luminary switch is replaced with the illuminating diode lamp used. Otherwise, the illumination color temperature of the illuminating diode lamp cannot be changed. However, the preparation of light-emitting diode lamps of different color temperatures will result in an increase in cost. Moreover, replacing the LED lamp used in the LED lamp will make it convenient for the user to use the material for loading. In addition, even if an additional light-emitting diode lamp is prepared, only two single-color temperature choices can be provided, and other different color temperatures cannot be adjusted. ... 爰 , 如何 , 如何 如何 如何 如何 如何 如何 如何 如何 如何 如何 如何 如何 如何 如何 如何 如何 如何 如何 如何 如何 如何 如何 如何 如何 如何 如何 如何 如何 如何 如何 如何 发光 。 。 。 。 SUMMARY OF THE INVENTION The main object of the present invention is to provide a light-emitting diode lamp that can directly adjust the color temperature by directly rotating the moth button on the light-emitting diode lamp without replacing the light-emitting diode ship. The light-emitting diode lamp with adjustable color temperature provided by the invention comprises at least a first blue light-emitting diode chip, at least one second blue light-emitting diode crystal, a gel and a control circuit. The second blue light emitting diode chip is longer than the light emitting wavelength of the first blue light diode. The encapsulation system covers the first blue light emitting diode chip and the second blue light emitting diode chip. The red color is mixed with the phosphor powder for converting the luminescence of the first γ blue light emitting diode chip and the second blue light emitting diode chip into cold white light and warm white light, respectively. The control circuit is for controlling the illumination state of the first blue light emitting diode chip and the second blue light emitting diode chip to generate illumination of different color temperatures and brightnesses. In an embodiment of the invention, the control circuit controls the illumination brightness of the first blue light emitting diode chip or the second blue light emitting diode to generate illumination of different color temperatures. For example, the control circuit can control whether the first blue light emitting diode chip emits light and the second blue light emitting diode emits light by controlling whether the first blue light emitting diode chip emits light and the second blue light emitting diode emits light. The brightness of the LEDs to produce illumination of different color temperatures. In another embodiment of the present invention, the control circuit controls the number of first blue light emitting diodes 7 200923272 that are illuminated in the blue light emitting diode chips to generate illumination of different color temperatures. In another embodiment of the present invention, the control circuit controls the number of second blue light emitting diodes that emit light in the second blue light emitting diode chips to produce illumination of different color temperatures. The advantages and spirit of the present invention will be further understood from the following detailed description of the invention. [Embodiment] The first figure is a block diagram of a preferred embodiment of the light-emitting diode lamp 10 of the present invention. As shown in the figure, the light-emitting diode lamp 10 having an adjustable color temperature has a light-emitting diode module 100, a control circuit 200 and a power supply 300. The control circuit 200 is used to control the illumination state of the light-emitting diode module 1 to generate illumination of different color temperatures and brightness. The power supply 300 is used to convert an externally input AC power source into a DC power that can be used by the LED module. The second drawing is a schematic cross-sectional view of a preferred embodiment of the light emitting diode module of the present invention. As shown in the figure, the LED module 1 has an aluminum substrate 120, a semiconductor substrate 14A, and at least a first blue LED substrate 16G (two first-blue light emitting patterns are shown). For example, the diode chip is at least one second blue light-emitting diode chip 18 (for example, two second blue light-emitting diode chips are shown) and a colloid 19 〇. The aluminum substrate 120 has a recess 122'. The semiconductor substrate 14 is disposed at the bottom of the recess 122. The first blue light emitting diode chip is then disposed on the semiconductor substrate 14A in conjunction with the second blue light emitting diode chip 180. Further, the second blue light-emitting two-sided wafer 180 has a longer wavelength than the fourth light-emitting diode 200923272 body wafer 160. The sealing body 190 is filled in the recess 122 while covering the semiconductor substrate 140, the first blue light emitting diode wafer 16A and the second blue light emitting diode wafer 180. Further, the encapsulant 19 is doped with phosphor powder for converting blue light of the first blue light emitting diode chip (10) and the second blue light emitting diode chip 180 into cold white light and warm white light, respectively. In a preferred embodiment, the first blue light-emitting diode wafer 16 has an emission band of 400 nm to 460 nm, and the second blue light-emitting diode chip has an emission band of 460 nm to 480 nm, which is cold after conversion. The color temperature range of white light and warm white light is 2500K~3500K and 5500K~7500K, respectively. In addition, the LED module 1 of the present invention is further covered with a transparent adhesive layer 195 on the encapsulant 190. The transparent adhesive layer 195 has a convex surface to condense the light generated by the first blue light emitting diode 160 and the second blue light emitting diode chip 18 . The third figure is a circuit diagram of a preferred embodiment of the light-emitting diode lamp of the first figure. As shown in the figure, the two first blue light emitting diode chips 160 of the light emitting diode lamp are connected in series to the control circuit 200. The two second blue light emitting diode chips 180 are also connected in series to the control circuit 200. The current value flowing through the first blue light-emitting diode wafer 16 and the current value flowing through the second blue light-emitting diode wafer 180 can be respectively controlled by the control circuit 200 to generate illumination of different color temperatures. For example, a variable resistor can be connected in series to the first blue LED wafer 160. The current value flowing through the first blue light-emitting diode wafer 160 can be adjusted by changing the resistance value of the variable resistor. Further, each of the first blue light-emitting diode wafers 200923272 160 having the same current flowing through the respective first blue light-emitting diode wafers 160 is substantially identical in luminance. Similarly, each of the second blue light emitting diode chips 180 connected in series also has substantially the same luminance. It should be noted that, in this embodiment, the brightness of the first blue light emitting diode chip 160 or the light level of the second blue light emitting diode chip 180 can be controlled by the control circuit 2 to generate different color temperatures. Lighting. For example, the illumination brightness of the first blue light emitting diode chip 160 and the second blue light emitting diode chip 18 can be controlled by the control circuit 200 to control the illumination color temperature and brightness of the light emitting diode lamp. . For controlling whether the first blue light emitting diode chip 180 emits light, for example, 'a switch can be connected in series to the second blue light emitting diode chip, and the second blue light emitting diode chip 18 can be illuminated by turning on the switch. . In the case where the second blue light-emitting one-pole wafer 180 is not illuminated, the light-emitting diode lamp 10 produces cool white light. In the case that the second blue light emitting diode chip 18 illuminates, the illuminating diode lamp 10 can adjust the illuminating brightness of the first blue light emitting diode chip 160, and the illumination color temperature of the illuminating diode lamp is Warm white light adjusts to cool white light. At the same time, the greater the luminance of the first blue light-emitting diode wafer 160, the greater the luminance of the entire light-emitting diode lamp. Similarly, the LED lamp of the present embodiment can also control whether the first blue light emitting diode 160 is illuminated and the brightness of the second blue light emitting diode chip 180 to generate illumination of different color temperatures and brightness. The fourth figure is a circuit diagram of another preferred embodiment of the light-emitting diode lamp of the present invention. As shown in the figure, each of the first blue light-emitting diode chips 160 is connected to the control circuit 2, and each of the second blue 200923272 light-emitting one-pole wafers 180 is serially connected to the control circuit 200. Each of the first-blue light-emitting diode chips 160 can be individually controlled by the control circuit 200, and the number of the first-blue light-emitting diode chips 160 that emit light can be determined to generate illumination of different color temperatures and brightnesses. In the second step, if each of the second blue light-emitting diode chips 180 emits light, the light-emitting chromaticity of the light-emitting diodes f will increase with the number of light-emitting blue-light diode chips 160. , adjusted by warm white light towards cool white light. At the same time, the luminance of the illuminating one-pole luminaire 10 is also increased as the number of illuminating first blue illuminating diode chips 16 is increased. Similarly, each of the first blue light emitting diode chips 180 may be respectively connected to the control circuit 200, and each of the first blue light emitting diode chips 16 is serially connected to the control circuit 2, and these are controlled by the control circuit 200. In the two blue light-emitting diode wafers 180, the number of the second blue light-emitting diode chips 18 illuminates to generate illumination of different color temperatures and brightness. The fifth figure is a circuit diagram of an embodiment of the light-emitting diode lamp and the car-friendly embodiment of the present invention. As shown in the figure, each of the first blue light emitting diode chips 160 is connected to the control circuit 2, and each of the second light emitting diode chips 180 is connected to the control circuit 2, respectively. The first blue light emitting diode chip 16 and the second blue light emitting diode chip 160 and the second blue light emitting diode chip can be controlled by the control circuit 200. The number of 18 inches is used to produce illumination of different color temperatures and temperatures. For example, assume that the first blue light emitting diode chip 160 and the second blue light emitting diode chip 18 have the same light emitting luminance. In the case of the number of S diode crystals (10), 180, the number of light-emitting first blue light 200923272 light-emitting diode wafer 160 and second blue light-emitting diode wafer 180 can be adjusted by the control circuit 200. To change its color temperature. That is, the light-emitting diode lamp 10 can adjust the color temperature of the illumination with a fixed brightness. In addition, in the case of maintaining the ratio of the number of the first blue light emitting diode chips 160 to the second blue light emitting diode chips 180, the number of the light emitting diode chips 160, 180 can be adjusted by the control circuit 200 to Change the brightness of its light. That is, the light-emitting diode lamp can adjust the brightness of the illumination at a fixed color temperature. Referring to the first and second figures, the light-emitting diode lamp of the present invention only needs to use a light-emitting diode module 100' with cold white light and warm white light to match the appropriate circuit design. The color temperature of the illumination of the LED lamp 10 can be adjusted according to the needs thereof. It is not necessary to prepare a light-emitting diode lamp of different color temperature, and it is not necessary to replace the light-emitting diode lamp used in the light-emitting diode lamp. Therefore, the convenience of use by the user can be improved and the cost of the device can be reduced. The above description of the present invention is intended to be illustrative of the present invention and not to limit the scope of the present invention, and it will be understood by those skilled in the art that it is appropriate to make minor changes and adjustments without departing from the present invention; It is within the spirit and scope of the invention. <br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br> - The cross-section of the embodiment is not intended; 12 200923272 The third figure is a circuit diagram of the light-emitting diode lamp with adjustable color temperature of the first figure; the fourth figure is another preferred embodiment of the light-emitting diode lamp with adjustable color temperature of the present invention. The circuit diagram of the embodiment; and the fifth diagram is a circuit diagram of still another preferred embodiment of the light-emitting diode lamp of the present invention. [Description of main components] Light-emitting diode lamp 10 Light-emitting diode module 100 Aluminum substrate 120 Groove 122 Semiconductor substrate 140 First blue light-emitting diode wafer 160 Second blue light-emitting diode wafer 180 Sealant 190 Transparent Rubber layer 195 control circuit 200 power supply 300 13