M326633 八、新型說明： 【新型所屬之技術領域】 . 本案係一種雨滴感測裝置，尤指一種廣面積雨滴感測裝 置，其光導管内設計特定角度，可依光源進入玻璃之全反射光 、強度精確感測雨滴多寡。 【先前技術】 按汽車雨刷的主要功能係刮除附著於擋風玻璃上的水潰 及污垢，以提供駕駛者清晰的視野。而於下雨時，駕駛人係以 鲁人為判斷前擋風玻璃承受落雨量之模糊程度，再以手動方式調 整雨刷啟動旋鈕，而此動作不僅會使駕駛人分心，亦使玻璃落 雨量刮除之清晰度不一，兩者均與駕駛安全息息相關。為減少 駕駛者於行駛時的瞬間分心，及確保玻璃落雨量刮除保持定 罝’以提升車輛主動性安全，裝設具有感測器之智慧型雨刷， 乃目前各車廠亟需投注心力的開發方向。 智慧型雨刷之核心在於感測器，而針對前擔風玻璃之雨量 刮除普遍採用兩種感應方式，其一為車速感應式，另一則為兩 滴量感應式。由於車速感應器僅針對車輛行進速度，自動判斷 •雨刷的來回刮除頻率，由於其係間接判斷單位時間於前擋風玻 $的總洛雨量’因此誤判的機會甚高。而兩滴感應式則根據前 擔風玻璃上的落雨量多寡，以自動控制雨刷之往復頻率。而現 行之雨滴感應式感測器可概分為：光學反射型感測器 (Reflective Sensor)、音頻型感測器(Audio Sensor)及傳導型感 測器(Conductive Sensor)，其中以光學反射型雨滴感測器較不 容易受到干擾，包括BMW、Benz、Renault、Mazda車系等 均採用光學反射式雨滴感測器。傳統之光學反射式感應器之感 測原理必然包含有光源、光感元件、電路、邏輯判斷單元、光 導管等元件，亦即當雨滴感測器偵測到雨滴至一定量時，可自 5 M326633 動啟動雨刷，而其作動頻率的大小，則取決於前擋風玻璃作為 光導管時，其光線在光導管内全反射行進的衰減程度，當前擋 風玻璃之雨滴數量越多，則光導管内全反射的光強度將大幅^ 減，當光衰減程度越嚴重，則雨刷作動頻率必須越大。 & 如本國專利公告第450362號(2001年)之「感應式擋風玻 璃自動雨刷系統偵測器」專利案，該價測器包括透明體、感測 器、第一光源及第二光源所構成，該透明體具有特定之角度， 以便將產生之折射線或散射線投照於感應器上，而減少感^器 •之照度’感應器因照度減少而啟動雨刷裝置，而將擋風玻璃上 之異物予以掃除，以保持檔風玻璃之能見度。該專利為目前主 流架構，惟其光導管之透明體必須具有一定角度，以致在安 時將面臨非常繁雜的困擾與難題。此外，本國專利公止第 466192號(2001年)之「光學式汽車雨刷自動控制系統°」專利 案，其揭露一種於車上近檔風玻璃適當位置設有一攝像器，以 供取得車前之影像，藉由影像之比對可判斷不同程度雨i或擋 璃之ί潔程度，而自動啟動雨刷或適時喷出清潔水，以i 供良好的駕駛視野之汽車雨刷控制系統。該專利的問題在於 $進時’車擋風玻璃之前影像不斷變化，以致於比對時恐合 此外，如本國專利公告第595717號(2〇〇4年 璃自動_系統偵測器」專利案，其係前述公告^\ 專彻，其娜料縣从感應器之 ρ弓田、。又有缚狀物，該筒狀物係介於透明體及濾光片之 :之直直ΐϊί照射到感應器，以防止感應器；受到陽 ί #射光H是以，顯見該公告第 誤判的情#料受.界觀干擾，以導致 精由對先前麟的描述，可㈣臟额光學反射型雨量 6 M326633 或雨滴感測器業已成為主流，然而前述各種光學式感測器 構不健全，或因容易受到外界光源干擾，已為商業"市場° $ 棄。目前的國内、外相關商品之設計架構必須準備九個以 鏡面模組’不易降低製造成本。有鑑於現有感測器之光風只 零件數量過多，顯見在光學領域設計之改良空間甚大， 亟待改善的課題。 向具有 【新型内容】 有鑑於此’本案發明人本於多年來從事光學感測器 -究的經驗，期能改善前述光學式雨量或雨滴感測器之諸夕^^ 1 i裝ί再。三實驗與測試’進而發展出本專案之「^積^滴感 本案主要目的在於提供一種廣面積雨滴感測裝置，复 光全反射原理，使光導管之鏡面數量降低，且光導管一用 方式製造，零件數可縮減至最少，使模具費用相對降低。^^ 本案所使用光源數量可縮減至最少，使電路及零件成介’ 降低。尤有進者，藉由精巧簡單的機械構造及忑學亦j對 光訊號傳輸可靠與穩定。 疋予叹叶，使得 本案次要目的在於提供一種廣面積雨滴感測裝 光學探測鏡為無機或有機透明材料所製成之楔形稜柱體二中該 本案另一目的在於提供一種廣面積雨滴感測裝/ 透明材料縣可透光機，其為無&或具基&之透= 該 之。例如，該透明材料以玻璃為佳。 材枓為 本案再一目的在於提供一種廣面積雨滴感測裝 ，源發射的光線包括可見或不可見之光線。其中，誃ς = 光二極體或雷射二極體，所發射的光線為紅外線為‘。"、為毛 =成前，之目的本案之—種廣面積_感職置 =於車輛雨刷糸統，其包括：—發光裝置，係置於 2 璃之-侧’其可以—特定角度㈣光源觀 7M326633 VIII. New description: [New technical field] The case is a raindrop sensing device, especially a wide-area raindrop sensing device. The light pipe is designed with a specific angle, which can enter the total reflected light and intensity of the glass according to the light source. Accurately sense the amount of raindrops. [Prior Art] The main function of the car wiper is to remove the water and dirt attached to the windshield to provide a clear view of the driver. When it rains, the driver judges the fog of the front windshield by the Lu people, and then manually adjusts the wiper start knob, which not only distracts the driver, but also causes the glass to fall. In addition to the varying degrees of clarity, both are closely related to driving safety. In order to reduce the driver's instant distraction while driving, and to ensure that the glass falling rain is scraped and kept fixed to enhance the initiative safety of the vehicle, a smart wiper with a sensor is installed, which is currently in need of betting. Development direction. The core of the smart wiper is the sensor, and the two types of induction are commonly used for the rain of the front windshield. One is the speed-sensing type and the other is the two-drop induction type. Since the speed sensor is only for the speed of the vehicle, it is automatically judged that the wiper's back and forth scraping frequency is indirectly determined because it indirectly determines the total amount of rain in the front windshield. The two-drop induction type automatically controls the reciprocating frequency of the wiper according to the amount of rain on the front windshield glass. The current raindrop sensor can be broadly divided into: Optical Reflective Sensor, Audio Sensor, and Conductive Sensor, which are optically reflective. Raindrop sensors are less susceptible to interference, including optical reflective raindrop sensors for BMW, Benz, Renault, and Mazda. The sensing principle of the traditional optical reflective sensor necessarily includes components such as a light source, a light sensing component, a circuit, a logic judging unit, a light pipe, etc., that is, when the raindrop sensor detects a raindrop to a certain amount, it can be 5 M326633 activates the wiper, and the frequency of its actuation depends on the attenuation of the total reflection of the light in the light guide when the front windshield is used as the light guide. The more the current rainshield is, the more the light guide is. The intensity of the reflected light will be greatly reduced. When the degree of light attenuation is more severe, the frequency of the wiper actuation must be greater. &, as in the "Inductive Windshield Automatic Wiper System Detector" patent of National Patent Publication No. 450362 (2001), the price detector includes a transparent body, a sensor, a first light source and a second light source. The transparent body has a specific angle so as to illuminate the generated refracting line or scattering line on the sensor, and reduce the illuminance of the sensor. The sensor activates the wiper device due to the reduced illumination, and the windshield is turned on. The foreign matter on the upper part is removed to maintain the visibility of the windshield. This patent is currently the main stream structure, but the transparent body of the light pipe must have a certain angle, so that it will face very complicated troubles and problems in peacetime. In addition, the patent of the "Optical Automobile Wiper Automatic Control System °" patent of National Patent No. 466192 (2001) discloses that a camera is provided at an appropriate position on the windshield of the vehicle for obtaining the front of the vehicle. Image, by comparing the images to determine the degree of rain i or the thickness of the glass, and automatically start the wiper or spray the clean water in time to provide a good driving vision of the car wiper control system. The problem with this patent is that the image of the front of the car's windshield is constantly changing, so that it is more likely to be compared. In addition, such as the national patent publication No. 595717 (2〇〇4 years glass automatic_system detector) patent case It is the same as the above announcement ^\, and its Nao County is from the sensor of the bow field, and there is a binding, the tube is between the transparent body and the filter: the straight ΐϊ ί irradiation To prevent the sensor; to receive the ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ M326633 or raindrop sensors have become mainstream, but the various optical sensors described above are not perfect, or because they are easily interfered by external light sources, they have been abandoned for commercial use. The current domestic and foreign related products are designed. The architecture must prepare nine mirror-based modules, which are not easy to reduce the manufacturing cost. In view of the fact that the existing sensors have only a large number of parts, it is obvious that there is a lot of room for improvement in the design of the optical field, and there is a need for improvement. In view of this, the inventor of this case has been engaged in the experience of optical sensors for many years, and can improve the eve of the above-mentioned optical rainfall or rain sensor. ^3 1 The main purpose of this project is to provide a wide-area raindrop sensing device, the principle of total light reflection, so that the number of mirrors of the light pipe is reduced, and the light pipe is manufactured by one method, and the number of parts can be reduced. At the very least, the cost of the mold is relatively reduced. ^^ The number of light sources used in this case can be reduced to a minimum, so that the circuit and the parts are reduced. Especially, the mechanical signal and the drop-out are also used. The transmission is reliable and stable. The second purpose of this case is to provide a wide-area raindrop sensing optical detector mirror made of inorganic or organic transparent material. The other purpose of this case is to provide a Wide-area raindrop sensing device / transparent material county opaque machine, which is no & or has a base & permeable = for example. For example, the transparent material is preferably glass. It is to provide a wide-area raindrop sensing device. The light emitted by the source includes visible or invisible light. Among them, 誃ς = light diode or laser diode, the emitted light is infrared. ', " For the purpose of Mao = before, the purpose of this case is a wide area _ sensory position = in the vehicle wiper system, including: - illuminating device, placed on the 2 glass - side 'can be - specific angle (four) light source view 7