201202076 六、發明說明： 【發明所屬之技術領域】 [0001] 本發明涉及一種車載道路照明系統，尤其涉及—種1^1)車 載道路照明系統。 [0002] ❹ 〇 【先前技術】 車載道路照明系統對安全行車具有至關重要的作用，尤 其是設置在車頭的照明大燈在照明度不佳的道路上可為 駕敏員提供較佳可視範圍以增加行車的安全性。傳统的 照明大燈採用高耗能的氙氣燈，氦氣燈等鹵素燈。隨 LED等的亮度提高’越来相多的車輛採用led燈來作為車 燈。目前白光LED模組為藍光LEl^結合黃光螢光物質激發 產生白光，該藍光LED結合黃光螢光物質的氮合物為固定 產生白光。然而，白光LED模組的白光的色溫值偏高，通 常介於4500K至6500K之間，這樣的光線會讓人感到刺眼 。另外白光LED模組的演色性僅能達到80% ,這樣的效能 對於車輛頭燈不同色溫的需求是不夠的。由於雨天、下 雪或是晴天的能見度完全不同，所需要車燈呈現的色溫 也是不同的’若在這些不同的狀況下不能有效調整車燈 的色溫對於駕駛者是非常危險的。 [0003] 【發明内容】 有鑒於此，有必要提供一種色溫可調整的車载道路照明 系統。 [0004] 一種車載道路照明系統，其包括：一車燈裝置以及一控 制裝置。該車燈裝置包含至少一第一LED單元以及至少一 第二LED單元。其中第一LED單元提供一第—色溫，第二 099122915 表單編號A0101 第3頁/共17頁 0992040384-0 201202076 LED單元提供一區別于第一色溫的第二色溫。該控制裝置 與該車燈裝置連結，用以改變該第二LED單元至第一LED 單元的亮度比以使由第二LED單元及第一LED單元發出的 光線混合後生成具有一預定色溫的光線。 [0005] [0006] [0007] [0008] 099122915 本發明車載道路照明系統具有不同的LED單元，通過控制 裝置對不同LED單元的調整能控制該車燈裝置整體光源的 色溫表現，從而可適應情境照明的需求即時調整，達到 不同色溫變化的目的，使得駕駛人眼部有舒適的感覺相 對地增加行車的安全。 【實施方式】 下面將結合附圖對本發明作一具體介紹。 請參閱圖1，所示為本發明車載道路照明系統第一實施例 的方塊示意圖，車載道路照明系統100包括一車燈裝置12 以及一控制裝置14，一感測器裝置16以及一使用者系統 介面18。 車燈裝置12包含至少一第一LED單元126以提供具有第一 色溫的光線，以及至少一第二LED單元128以提供具有不 同於第一色溫的第二色溫的光線。該第一 LED單元126的 數量可以是第二LED單元128的四倍以提供令人舒適的視 覺感受，但並不用以限制本發明。該第一LED單元126以 及第二LED單元128的總數量可以是2的η次倍數（2n其中η 為非零的自然數）。本實施例中，該車燈裝置12的第一 LED單元126發出冷色系光線，第二LED單元128發出暖色 系光線。該第一LED單元126的第一色溫的範圍從 450 OK (Kelvin)至6 50 0K而第二色溫範圍則小於330 0K， 表單編號A0101 第4頁/共17頁 0992040384-0 201202076 例如該第一LED單元126以及第二LED單元128分別為白光 LED以及紅光LED，以提供一個發光頻寬較廣的簡單結構 〇 [0009] 控制裝置14與該車燈裝置12連接，以改變該第二LED單元 128與第一 LED單元126的亮度比以及控制該車燈裝置12 產生的色溫。第一以及第二LED單元126、128的激發電 流由該控制裝置14提供。LED的發光亮度會因應電流量的 調整而改變，因此第一以及第二LED單元126、128的混 合光線色溫可通過調整供給至第一以及第二LED單元126 〇 、128的電流強度來控制。 [0010] 感測器裝置16包含至少一光感測器162、濕度感測器164 、速度感測器166以及距離感測器168。可以理解，該感 測器裝置16内還可以集合有其他的用以表徵環境參數的 感測器，如氣壓感測器、海拔感測器等以採集所需要的 參數。本實施例中的感測器裝置16設置於車輛的前方用 以檢測環境亮度、濕度、車輛速度、距離等資訊並將上 Q 述資訊傳送至該控制裝置14，藉以作為參考來對車輛的 各種運行狀態進行調整。該控制裝置14包含一處理器142 以依據來自於感測器裝置16以及來自於使用者系統介面 18的控制資訊，分配該第一以及第二LED單元126、128 的觸發電流。控制裝置14内包括一存儲裝置，以儲存多 個不同的照明模式144，例如；陽光照明模式144a、雨天 照明模式144b、高速照明模式144c、霧中照明模式144d 等，每一個照明模式144均包含色溫或是亮度的預設電流 參數值，使得該控制裝置14可以對應於照明模式144的現 099122915 表單編號A0101 第5頁/共17頁 0992040384-0 201202076 況’控制第一以及第二LED單元126、128的發光亮度。 [0011] [0012] 使用者系統介面1 8用以為使用者提供操作介面，例如； 可以是一資訊輸入鍵盤。該使用者系統介面18可以顯示 感測器裝置16檢測的資訊或是建議一個照明模式丨,使 用者可以通過使用者系統介面18輸入照明指令，從而不 論是通過使用者人工的操作或是該控制裝置14一個軟體 程式的自動操作，該車載道路照明系統1〇〇的照明及色溫 均可以被調整。藉由控制裝置14以及第一和第二LED單元 126、128，任何顏色層次以及光束亮度都可通過混合不 同π度的光線實現例如模擬出一般白熾..燈高斯光束 (Gaussian profile)的光束亮度。車燈裝置η產生的 色溫範圍從2500K至6500K，演色性能達到8〇%至85%而 發光頻寬可以涵蓋整個可見光範圍。 請參閱圖2及圖3所示，該車燈裝置12包含一基座122以及 複數反射器124。該車燈裝置μ還可以根據需求設置一燈 罩、一透鏡或是一透明的外殼(圖中_樨示）於第一和第 二LED單元I26、指前方气以對牟燈裝置丨2為保護以及 適當的光線分配。本第一實施例中，該基座122為一平板 ，第一和第二LED單元126、128以陣列排列的方式設置 於該基座122上。該基座122可以具有不同的形狀以適應 不同的照明需求及車輛的外形設計需求。該第一和第二 LED單元126、128可以根據需求設置成多種不同的排列 方式，如將該第一和第二LED單元126、128排成一排設 置於電路載體123上以形成一個光帶，或者將多排第一和 第二LED單元126、128排列於電路載體123上從而構成一 099122915 表單編號A0101 第6頁/共17頁 0992040384-0 201202076 個發光陣列。該反射器124為反射體設有複數容置槽以容 置該第一和第二LED單元126、128，龙具有一凹面甩以 集中發射的光線。 [0013] 控制裝置14採用逐次的方式，例如，可以逐個、逐列、 Ο ο [0014] 逐一排改變第一和第二LED單元126、128的亮度。例如 當一輛汽車由霧區駛進陽光區域，第一和第二LED單元 126、128的亮度可由最亮狀態自第一排至最後一排以逐 排逐次並且連續性的關掉而漸漸變暗。因為該每一排第 二LED單元128相對於第— LED單元126具有相同的數量比 率’在這段時間這樣的操作下色溫的改變也是同樣逐漸 的改變，可防正亮度突然的改變使駕駛員眼光模糊。這 樣逐次改變的操作下該車燈裝置12亮度的改變對觀看者 是舒適且安全地’並且可降低故障的機率。控制裝置14 不但可以改變色溫也可以修改照明的分佈。第一和第二 LED單元126、128依照每一個LED單元排列的位置及角度 會產生不同的照明分佈。例如，一個遠光燈模式LED單元 在一個長程範圍中具有集中的照明分佈並給予高電流， 在一個近光燈模式則給予低電流或甚至不需電流。 請參閱圖4 ’本發明車載道路照明系統第二實施例的車燈 裝置，與第一實施例主要不同包括車燈裝置22的形狀， LED單元226、228、229的排列以及LED單元226、228、 229的發光《該基座（圖中未標示）被反射器224覆蓋，基 座以及反射器224兩者具有一環狀，其俯視圖呈一個圓形 。該車燈裝置22更包括複數個第三LED單元229提供具有 第三色溫的光線，該第三色溫不同於第—以及第二色溫 099122915 表單編號A0101 第7頁/共17頁 0992040384-0 201202076 。第一、第二和第三LED單元226、228、229被排列形成 一個複數的同心圓。其中第一色溫的範圍從4500K至 6500K發出冷色系白光，第二色溫則是小於3300K發出暖 色系的光，第三色溫乃超過5300K發出冷色系光。例如該 第一、第二和第三LED單元226、228、229分別為白光 LED、黃（綠）光LED 、以及藍光LED。該第一、第二和第 三LED單元226、228 ' 229都被排列為圓形或環狀。控制 裝置14可一環一還逐次的改變該第一、第二和第三LED單 元226、228、229的亮度。 [0015] 請參閱圖5 ’本發明車載道路照明系統第三實施例的車燈 裝置，相較於第二實施例主要不同在於第一和第二LED單 元326、328的數量以及排列方式所產生的發光效果。該 第二LED單元328被第一LED單元326環繞，第一LED單元 326的數量是該第二LED單元328的兩倍。本實施例中第 一和第二LED單元326、328的數量總合是24，而該第一 和第二LED單元326、328分別羌白先LED以及紅光LED。 +? ...:.. i..... 車燈裝置在演色性的改善，媒秦丨高色溫的適應性，使控 W: '； " Ί.-- 制裝置更具智慧’對於各種不同的情境狀況可預先設置 適當的照明模式’讓行車安全更獲得改良。 [0016] 應該指出，上述實施例僅為本發明的較佳實施方式，本 領域技術人員還可在本發明精神内做其他變化。這些依 據本發明精神所做的變化，都應包含在本發明所要求保 護的範圍之内。 【圖式簡單說明】 [οοπ]圖1是本發明車載道路照明系統第一實施例的方塊示意圖 099122915 表單編號A0101 第8頁/共17頁 0992040384-0 201202076 [0018] 圖2是圖1車載道路照明系統的車燈裝置的俯視圖。 [0019] 圖3是圖1車載道路照明系統的車燈裝置的部分剖視圖。 [0020] 圖4是本發明車載道路照明系統第二實施例車燈裝置的俯 視圖。 [0021] 圖5是本發明車載道路照明系統第三實施例車燈裝置的俯 視圖。201202076 VI. Description of the Invention: [Technical Field of the Invention] [0001] The present invention relates to an in-vehicle road lighting system, and more particularly to a 1^1) on-vehicle road lighting system. [0002] ❹ 〇 [Prior Art] Vehicle road lighting system plays a vital role in safe driving, especially the headlights installed on the front of the car can provide a better visual range for the driver on the road with poor illumination. To increase the safety of driving. Traditional lighting headlights use high-energy Xenon lamps, halogen lamps and other halogen lamps. As the brightness of LEDs and the like increases, more and more vehicles use led lights as the lights. At present, the white LED module emits white light by the blue light LEl^ combined with the yellow fluorescent material, and the blue LED combines with the yellow light fluorescent substance to fix the white light. However, the white light color of the white LED module is high, usually between 4500K and 6500K, which makes the light dazzling. In addition, the color rendering of white LED modules can only reach 80%. This kind of performance is not enough for the different color temperature of vehicle headlights. Since the visibility of rainy days, snow, or sunny days is completely different, the color temperature required for the lights is different. 'If the color temperature of the lights cannot be effectively adjusted under these different conditions, it is very dangerous for the driver. SUMMARY OF THE INVENTION In view of the above, it is necessary to provide an on-vehicle road lighting system with adjustable color temperature. [0004] An in-vehicle road lighting system includes: a vehicle light device and a control device. The light device includes at least one first LED unit and at least one second LED unit. The first LED unit provides a first color temperature, the second 099122915 form number A0101 page 3 / 17 page 0992040384-0 201202076 The LED unit provides a second color temperature different from the first color temperature. The control device is coupled to the lamp device for changing a brightness ratio of the second LED unit to the first LED unit to mix light emitted by the second LED unit and the first LED unit to generate light having a predetermined color temperature. . [0007] [0007] [0008] 099122915 The vehicle road lighting system of the present invention has different LED units, and the adjustment of different LED units by the control device can control the color temperature performance of the overall light source of the lamp device, thereby adapting to the situation. The demand for lighting is adjusted in real time to achieve different color temperature changes, so that the driver's eyes have a comfortable feeling and relatively increase the safety of driving. [Embodiment] Hereinafter, the present invention will be specifically described with reference to the accompanying drawings. Referring to FIG. 1 , a block diagram of a first embodiment of a vehicle road lighting system according to the present invention is shown. The vehicle road lighting system 100 includes a vehicle light device 12 and a control device 14 , a sensor device 16 and a user system . Interface 18. The light unit 12 includes at least one first LED unit 126 to provide light having a first color temperature, and at least one second LED unit 128 to provide light having a second color temperature different from the first color temperature. The number of first LED units 126 may be four times that of the second LED unit 128 to provide a comfortable visual experience, but is not intended to limit the invention. The total number of the first LED unit 126 and the second LED unit 128 may be an integer multiple of 2 (2n where η is a non-zero natural number). In this embodiment, the first LED unit 126 of the lamp unit 12 emits cool light, and the second LED unit 128 emits warm light. The first color temperature of the first LED unit 126 ranges from 450 OK (Kelvin) to 6 50 0K and the second color temperature range is less than 330 0K, Form No. A0101 Page 4 / Total 17 Page 0992040384-0 201202076 For example, the first The LED unit 126 and the second LED unit 128 are respectively a white LED and a red LED to provide a simple structure with a wide illumination bandwidth. [0009] The control device 14 is connected to the lamp device 12 to change the second LED. The brightness ratio of the unit 128 to the first LED unit 126 and the color temperature produced by the headlight unit 12. The excitation currents of the first and second LED units 126, 128 are provided by the control device 14. The luminance of the LED changes depending on the adjustment of the amount of current, so that the mixed light color temperatures of the first and second LED units 126, 128 can be controlled by adjusting the current intensity supplied to the first and second LED units 126, 128. [0010] The sensor device 16 includes at least one photo sensor 162, a humidity sensor 164, a speed sensor 166, and a distance sensor 168. It will be appreciated that other sensors for characterizing environmental parameters, such as barometric sensors, altitude sensors, etc., may be incorporated within the sensor device 16 to acquire the required parameters. The sensor device 16 in this embodiment is disposed in front of the vehicle for detecting information such as ambient brightness, humidity, vehicle speed, distance, and the like, and transmitting the above-mentioned information to the control device 14 as a reference for various vehicles. The operating state is adjusted. The control device 14 includes a processor 142 for distributing the trigger currents of the first and second LED units 126, 128 in accordance with control information from the sensor device 16 and from the user system interface 18. The control device 14 includes a storage device for storing a plurality of different illumination modes 144, such as a sunlight illumination mode 144a, a rainy illumination mode 144b, a high speed illumination mode 144c, an in-fog illumination mode 144d, etc., each of which includes a color temperature. Or the preset current parameter value of the brightness, so that the control device 14 can correspond to the current mode 099122915 of the illumination mode 144. Form No. A0101 Page 5 / 17 page 0992040384-0 201202076 Condition 'Control the first and second LED units 126, The brightness of 128 light. [0012] The user system interface 18 is used to provide an operation interface for the user, for example, and may be an information input keyboard. The user system interface 18 can display the information detected by the sensor device 16 or suggest a lighting mode, and the user can input the lighting command through the user system interface 18, whether by manual operation of the user or the control. The device 14 is automatically operated by a software program, and the illumination and color temperature of the vehicle road lighting system can be adjusted. By means of the control device 14 and the first and second LED units 126, 128, any color gradation and beam brightness can be achieved by mixing light of different π degrees, for example to simulate a general incandescent light beam of a Gaussian profile. . The color range of the lamp unit η ranges from 2500K to 6500K, and the color rendering performance reaches 8〇% to 85%. The illuminating bandwidth can cover the entire visible range. Referring to Figures 2 and 3, the lamp unit 12 includes a base 122 and a plurality of reflectors 124. The lamp device μ can also be provided with a lamp cover, a lens or a transparent casing (shown in the figure) on the first and second LED units I26 and the front air to protect the xenon lamp device 丨2. And proper light distribution. In the first embodiment, the pedestal 122 is a flat plate, and the first and second LED units 126, 128 are disposed on the pedestal 122 in an array arrangement. The pedestal 122 can have different shapes to accommodate different lighting needs and the shape design requirements of the vehicle. The first and second LED units 126, 128 can be arranged in a plurality of different arrangements according to requirements, such as the first and second LED units 126, 128 are arranged in a row on the circuit carrier 123 to form a light strip. Or, a plurality of rows of first and second LED units 126, 128 are arranged on the circuit carrier 123 to form a 099122915 form number A0101 page 6 / a total of 17 pages 0992040384-0 201202076 light array. The reflector 124 is provided with a plurality of accommodating grooves for the reflector to accommodate the first and second LED units 126, 128, and the dragon has a concave surface to concentrate the emitted light. [0013] The control device 14 adopts a sequential manner, for example, the brightness of the first and second LED units 126, 128 may be changed one by one, one by one, one by one. For example, when a car enters the sun area from the fog area, the brightness of the first and second LED units 126, 128 can be gradually changed from the first row to the last row in a row from the first row to the last row, and the continuity is gradually turned off. dark. Since the second LED unit 128 of each row has the same number ratio with respect to the first LED unit 126, the change of the color temperature under such operation during the operation is also gradually changed, preventing the sudden change of the positive brightness from causing the driver to change. The vision is blurred. Such a change in brightness of the lamp unit 12 under the successively changed operation is comfortable and safe for the viewer' and the probability of failure can be reduced. The control device 14 can change the color temperature as well as the distribution of the illumination. The first and second LED units 126, 128 produce different illumination distributions depending on the position and angle of each LED unit arrangement. For example, a high beam mode LED unit has a concentrated illumination distribution and gives high current over a long range, and a low current or even no current in a low beam mode. Referring to FIG. 4, the vehicle lamp device of the second embodiment of the vehicle road lighting system of the present invention mainly differs from the first embodiment in the shape of the lamp device 22, the arrangement of the LED units 226, 228, 229, and the LED units 226, 228. Illumination of 229. The pedestal (not shown) is covered by a reflector 224. Both the pedestal and the reflector 224 have an annular shape and a circular shape in plan view. The lamp unit 22 further includes a plurality of third LED units 229 for providing light having a third color temperature different from the first and second color temperatures 099122915 Form No. A0101 Page 7 of 17 0992040384-0 201202076. The first, second and third LED units 226, 228, 229 are arranged to form a plurality of concentric circles. The first color temperature ranges from 4500K to 6500K to emit cool white light, the second color temperature is less than 3300K to emit warm light, and the third color temperature is more than 5300K to emit cool color. For example, the first, second, and third LED units 226, 228, 229 are a white LED, a yellow (green) LED, and a blue LED, respectively. The first, second and third LED units 226, 228' 229 are all arranged in a circular or ring shape. The control unit 14 can change the brightness of the first, second and third LED units 226, 228, 229 one by one and one by one. [0015] Please refer to FIG. 5, a vehicle lamp device of a third embodiment of the vehicle road lighting system of the present invention, which differs mainly from the second embodiment in the number and arrangement of the first and second LED units 326, 328. Glowing effect. The second LED unit 328 is surrounded by a first LED unit 326, the number of first LED units 326 being twice that of the second LED unit 328. In this embodiment, the total number of the first and second LED units 326, 328 is 24, and the first and second LED units 326, 328 are respectively white LEDs and red LEDs. +? ...:.. i..... The improvement of the color rendering of the lamp unit, the adaptability of the medium color to the high color temperature, makes the control W: '; " Ί.-- The device is more intelligent' For a variety of different situation conditions, the appropriate lighting mode can be preset to make the driving safety more improved. [0016] It should be noted that the above-described embodiments are merely preferred embodiments of the present invention, and those skilled in the art may make other changes within the spirit of the present invention. All changes made in accordance with the spirit of the invention are intended to be included within the scope of the invention as claimed. BRIEF DESCRIPTION OF THE DRAWINGS [FIG. 1] FIG. 1 is a block diagram of a first embodiment of a vehicle road lighting system of the present invention. 099122915 Form No. A0101 Page 8 of 17 0992040384-0 201202076 [0018] FIG. Top view of the lighting device of the lighting system. 3 is a partial cross-sectional view of a lamp device of the in-vehicle road lighting system of FIG. 1. 4 is a top plan view of a vehicle light device of a second embodiment of the vehicle road lighting system of the present invention. 5 is a top plan view of a vehicle light device of a third embodiment of the vehicle road lighting system of the present invention.
【主要元件符號說明】 [0022] 車載道路照明系統： 100 [0023] 車燈裝置：12、22 [0024] 基座：122 [0025] 電路載體：123 [0026] 反射器：124、224 ' .：! - ：*· ... [0027] 第一LED單元：126 1:··. '226 '326 / P'' [0028] 第二LED單元·· 128 ' 228 ' 328 [0029] 第三LED單元：229 [0030] 控制裝置：14 [0031] 處理器：142 [0032] 照明模式：144 [0033] 陽光照明模式：144a 099122915 表單編號A0101 第9頁/共17頁 0992040384-0 201202076 [0034] 雨天照明模式：144b [0035] 高速照明模式：144c [0036] 霧中照明模式：144d [0037] 感測器裝置：1 6 [0038] 光感測器：162 [0039] 濕度感測器：164 [0040] 速度感測器：166 [0041] 距離感測器：168 [0042] 使用者系統介面：18 099122915 表單編號A0101 第10頁/共17頁 0992040384-0[Main component symbol description] [0022] Vehicle road lighting system: 100 [0023] Car light device: 12, 22 [0024] Base: 122 [0025] Circuit carrier: 123 [0026] Reflector: 124, 224 '. :! - :*· ... [0027] First LED unit: 126 1:··. '226 '326 / P'' [0028] Second LED unit ·· 128 ' 228 ' 328 [0029] Third LED unit: 229 [0030] Control unit: 14 [0031] Processor: 142 [0032] Illumination mode: 144 [0033] Sunlight mode: 144a 099122915 Form number A0101 Page 9 of 17 0992040384-0 201202076 [0034 Rainy day lighting mode: 144b [0035] High-speed lighting mode: 144c [0036] In-fog lighting mode: 144d [0037] Sensor device: 1 6 [0038] Light sensor: 162 [0039] Humidity sensor: 164 [0040] Speed sensor: 166 [0041] Distance sensor: 168 [0042] User system interface: 18 099122915 Form number A0101 Page 10 / Total 17 page 0992040384-0