M282167 八、新型說明： 【新型所屬之技術領域】 本新型是«於-種反射鏡，且特別是相於—種增加感·感應範 圍（detecting range)的反射鏡之結構改良。 【先前技術】 市面上隶#用於谓測人體的電子元件為焦電型紅外線感應器 (Pyroelectric Infrared Sensor)，利用它的特性，我們可以做出許多的 應用。其中以防盜器材所利用的程度最高，當感應器發現能量分布密度跟 之鈾有所差異之日寸，感應杰就會產生一個信號，而把燈打亮，或是開啟馨 報器，而達到防盜的效果。 ° 目鈾使用被動式紅外線（PIR)來偵測人體的絕大部分產品都是透過高 密度聚乙烯（HDPE)材質所作成的透鏡陣列來聚焦人體所散發出之紅外線， 經聚焦之紅外線會經由一反射鏡的反射，射入感應器的感應區中]、 美國專利號5103346提出-種具有18〇度探測範圍的探測器（detect〇r WITH 180 DETECTING RANGE)，係揭露一反射鏡（signal deflect〇r)，此 反射叙具有多個平面型恶的反射面，但是此種反射鏡除了具有所能涵蓋的 範圍有限的缺點外，由於入射光線的角度皆不同，因此必須要去計算反射 點的位置。 、。斤 此外，美國專利號5103346提出一種具有寬的探測範圍之探測器 (DETECTOR WITH WIDE DETECTING RANGE)，係揭露-反射鏡，具有多^ 稱配置的反射單το (reflecting units)，而人射之紅外線是使用具有單一 焦距的透鏡（lens)聚焦，紅外線的人射路徑各為S3、S4、S5及％，但皆 經由Es點入射，雖然反射鏡解決了入射角度不同的問題，但是所聚集的紅 外線能量卻無法達到最集中之狀態。 ..... 【新型内容】 因此，本新型之目的在於提供一種反射鏡之結構改良，此反射鏡可與 一感應器搭配使用，用以增加感應器的感應範圍。 一 基於上述目的，本新型提供一種反射鏡之結構改良，此反射鏡適於將 由各方向入射之光線反射至一感應器上，其中反射鏡具有至少一摘圓曲 M282167 面，此橢圓曲面具有一第一焦點及一第二焦點·，且將感應器之感應區配置 於該第二焦點上，由各方向入射之光線通過橢圓曲面的第一焦點後，經由 橢圓曲面的反射會朝向第二焦點，而由感應器接收，藉此可使感應器的感 應範圍超過180度。 有關本新型之較佳實施例與技術内容，茲配合圖式說明如下： 【實施方式】 首先’請參閱「第1圖及第2圖」，橢圓的形狀係取決於長軸％、短轴 2b及焦距c的長短，其關係式為c2+b2=a2，值得注意的是，橢圓有一特性， 即具有雙焦點f】、f2，從任一焦點所發出的光線或聲波經反射之後，一定會 通過另個焦點’所以當有 > —個能置匯聚糸統’將能量匯聚於第^焦點上， 就會經由反射而匯聚至另一焦點上，因此可將這種特性應用在被動式紅外 線感應器（PIR SENSOR)上，將PIR SENSOR所沒有涵蓋到的範圍經由本新 型之反射鏡，將人體所產生之紅外線經由反射進入pIR SENS〇R的感應區。 明參閱「弟3圖及苐4圖」’本新型之反射鏡1〇，在本實施例中適於與 一感應裔20 (如焦電型紅外線感應器）搭配使用，用以將由各方向入射之 光線（如紅外線）反射至此感應器2〇的感應區22上。反射鏡1〇具有一橢 圓曲面12，此橢圓曲面12具有一第一焦點14及一第二焦點Μ，且將上述 感應器20之感應區22配置於第二焦點16上。 由於透過反射鏡1〇之橢圓曲面12的雙焦點特性，因此由各方向入射 之光線通過橢圓曲面12的第一焦點14後，再經由橢圓曲面12的反射會朝 向第二焦點16，而由感應器20之感應區22接收，如此一來可使感應器2〇 的感應範圍超過180度。 請參閱「第5圖」，在本實施例中，反射鏡10具有多個橢圓曲面12, 這些橢圓曲面12各具有一第一焦點14及一相同之第二焦點16，且將上述 感應為20之感應區22配置於第二焦點16上，同樣地，由各方向入射之光 線通過母個橢圓曲面12的第一焦點14後，再經由這些橢圓曲面a的反射 會朝向共同的第一焦點上，而由感應器2〇之感應區22接收。換言之， 當反射鏡10之橢圓曲面12設置為多個時，這些橢圓曲面12的第二焦點16 設計重合於一點上。 M282167 系示上所述’本新型反射鏡之結構改良至少具有下列優點· 1.由於採用橢圓曲面的反射鏡，當運用在人體紅外線偵測時，其偵 的範圍可包括感應态之箾方、下方、左右兩側及感應器左右後方等處，、直 感應範圍可超過180度。 一 2.由於採用橢圓曲面的反射鏡，只要瞄準橢圓曲面其中之一的焦點對 於設計者來說，不用計算反射點的位置，因此可節省設計的時間。 3二由於採用橢圓曲面的反射鏡，即便入射光線角度不同，可針對每個 角度母個點計算所需透鏡的曲率半徑，以達最佳化。 然本新型已以較佳實關揭露如上，然其並非用以限定本新型，任M282167 VIII. Description of the new model: [Technical field to which the new model belongs] The new model is a «Yu-type mirror, and in particular, a structural improvement of a kind of mirror that increases the sensing and sensing range. [Previous technology] The electronic component used in the market for measuring human bodies is a pyroelectric infrared sensor (Pyroelectric Infrared Sensor). With its characteristics, we can make many applications. Among them, the use of anti-theft equipment is the highest. When the sensor finds that the energy distribution density is different from that of uranium, the sensor will generate a signal and turn on the light or turn on the alarm device to achieve Anti-theft effect. ° Uranium uses passive infrared (PIR) to detect most human bodies. Most of the products use a lens array made of high-density polyethylene (HDPE) to focus the infrared rays emitted by the human body. The focused infrared rays pass through a The reflection of the reflecting mirror enters the sensing area of the sensor], US Pat. No. 5,103,346-a detector with 180 DETECTING RANGE (detector WITH 180 DETECTING RANGE), reveals a reflector (signal deflect). r), this reflection model has multiple flat-type reflective surfaces, but in addition to the shortcomings of this type of mirror, the angle of the incident light is different, so the position of the reflection point must be calculated. . . In addition, U.S. Patent No. 5103346 proposes a detector with a wide detection range (DETECTOR WITH WIDE DETECTING RANGE), which is a disclosure-reflector with multiple reflection units το (reflecting units), and humans emit infrared rays. It is focused using a lens with a single focal length. The infrared human radiation paths are S3, S4, S5, and%, but they are all incident through the Es point. Although the reflector solves the problem of different incident angles, the collected infrared rays Energy cannot reach its most concentrated state. ..... [New content] Therefore, the purpose of this new model is to provide a structural improvement of a reflector, which can be used with a sensor to increase the sensing range of the sensor. Based on the above purpose, the present invention provides a structural improvement of a reflecting mirror, which is adapted to reflect light incident from various directions onto a sensor, wherein the reflecting mirror has at least one rounded M282167 surface, and the elliptical curved surface has a The first focus and a second focus, and the sensing area of the sensor is arranged on the second focus. After the light incident from various directions passes the first focus of the elliptical surface, the reflection through the elliptical surface will face the second focus. And received by the sensor, so that the sensing range of the sensor can exceed 180 degrees. The preferred embodiments and technical contents of the present invention are described below with reference to the drawings: [Embodiment] First, please refer to "Figure 1 and Figure 2". The shape of the ellipse depends on the long axis% and the short axis 2b. And the length of the focal length c, the relationship is c2 + b2 = a2. It is worth noting that the ellipse has a characteristic, that is, it has a double focus f], f2. After the light or sound emitted from any focus is reflected, it will definitely Through another focus 'so when there is an energy convergence system', the energy is focused on the ^ th focus, it will be focused on another focus through reflection, so this characteristic can be applied to passive infrared sensing The device (PIR SENSOR) passes the range not covered by PIR SENSOR through the new type of mirror, and reflects the infrared rays generated by the human body into the sensing area of pIR SENSOR through reflection. Please refer to "Figure 3 and Figure 4" for details. "This new type of mirror 10 is suitable for use with an inductive sensor 20 (such as a pyroelectric infrared sensor) in this embodiment, and is used to make it incident from all directions. The light (such as infrared) is reflected on the sensing area 22 of the sensor 20. The reflecting mirror 10 has an elliptical curved surface 12 having a first focal point 14 and a second focal point M, and the sensing area 22 of the sensor 20 is disposed on the second focal point 16. Due to the bifocal characteristics of the elliptic curved surface 12 passing through the mirror 10, the light incident from each direction passes through the first focal point 14 of the elliptical curved surface 12, and then is reflected by the elliptic curved surface 12 toward the second focal point 16. The sensing area 22 of the sensor 20 receives, so that the sensing range of the sensor 20 can exceed 180 degrees. Please refer to FIG. 5. In this embodiment, the reflector 10 has a plurality of elliptic curved surfaces 12, each of which has a first focal point 14 and an identical second focal point 16, and the above induction is 20 The sensing area 22 is arranged on the second focal point 16. Similarly, after the light incident from each direction passes through the first focal point 14 of the elliptic curved surface 12, the reflection through these elliptic curved surfaces a will be directed toward the common first focal point. And received by the sensing area 22 of the sensor 20. In other words, when the elliptic curved surfaces 12 of the reflector 10 are provided in plurality, the second focal points 16 of these elliptic curved surfaces 12 are designed to coincide at one point. M282167 refers to the above-mentioned improvement of the structure of this new mirror has at least the following advantages: 1. Because of the use of elliptic curved mirrors, when used in infrared detection of the human body, its detection range can include the square of the inductive state, Below, the left and right sides, and the left and right rear of the sensor, the direct sensing range can exceed 180 degrees. A 2. Because of the use of an elliptical curved mirror, as long as the focus of one of the elliptic curved surfaces is aimed at the designer, it is not necessary to calculate the position of the reflection point, so the design time can be saved. 32. Due to the use of elliptic curved mirrors, even if the angle of the incident light is different, the required curvature radius of the lens can be calculated for each angle to optimize the lens. However, the new model has been disclosed as above with better practice, but it is not used to limit the new model.
何热習=技藝者，在不脫離本新型之精神和範圍内，而所作些許之更動與 /閏飾，皆應崎於本新型巾，目此本新型之舰細當視後社巾請 範圍所界定者為準。 M282167 【圖式簡單說明】 „ 第1圖，係為表示橢圓之長軸、短軸及焦距的示意圖。 第2圖，係為光線通過橢圓雙焦點的光路示意圖。 第3圖，係為本新型具有單一橢圓曲面之反射鏡搭配一感應器的立體 結構圖。 第4圖，係為本新型具有單一橢圓曲面之反射鏡搭配一感應器的側視 圖。 第5圖，係為本新型具有多個橢圓曲面之反射鏡搭配一感應器的立體 結構圖。 【主要元件符號說明】Herexie = an artist, without departing from the spirit and scope of the new model, all the changes and / or decorations should be used in this new type of towel. For this reason, the ship of this new type should be considered as a poster. The ones defined shall prevail. M282167 [Schematic description] „Figure 1 is a schematic diagram showing the major axis, short axis and focal length of the ellipse. Figure 2 is a schematic diagram of the light path through which the light passes through the double focus of the ellipse. Figure 3 is a novel model A three-dimensional structure diagram of a reflector with a single elliptical curved surface and a sensor. Figure 4 is a side view of a new type of mirror with a single elliptical curved surface and an inductor. Three-dimensional structure diagram of an elliptic curved mirror with a sensor. [Description of Symbols of Main Components]
10............反射鏡 12............橢圓曲面 14............第一焦點 16............第二焦點 20............感應器 22............感應區10 ............ Reflector 12 ............ Elliptic curved surface 14 ............ First focus 16 ... ......... Second focus 20 ............ Sensor 22 ............ Sensor zone