201124661 六、發明說明： 【發明所屬之技術領域】 本發明係為一種線照明裝置，特別是應用於一檢測設備上， 用以對-檢測區提供均勻地照射光源，以降低因待測物不規則表 面產生的不規則反射光，增加檢測結果的精確度。 【先前技術】 習知應用於檢測設備的照明裝置，通常都是採用光源直接照 射於檢測區上方式，然而這種方式多半無法達到均勻的光線照 籲明，舉例來說，若用來檢測具有不規則表面的待測物(如雷射標籤 或光碟片背面等)時，由於會造成不規則且不穩定的反射光，進而 影響景>像感測器的成像品質，導致檢測良率下降及/或是誤檢率 上升。 為改善前述照明上的缺失，另有可以產生均勻線型照明光源 的已知技術，如圖1所示，其主要是將光源u設置於檢測區的底 座12上兩側，同時利用一反射罩13作光學漫射(如圖中虛線所 不）’藉以達到在檢測區14上產生均勻線型光源的目的，然而此技 φ 術仍然存在照射光源不夠均勻的缺點，原因在於檢測區雖然可以 知到來自各個不同方向角度射入的光源，但由於不同方向角度射 入到達檢測區的光線路徑不相等，以致於光線的衰減程度不一， 因此會造成在檢測具有不規則結構的待測物(如具有雷射結構的物 品)時’仍舊會產生不規則的反射光，造成影像感測器15的成像品 質不佳，導致檢測精確度下降。 【發明内容】 有鑑於此’本發明之主要目的在於提供一種應用於檢測設備 上之線照明裝置，該線照明裝置能夠提供檢測區均勻且穩定的線 性光源’以降低因待測物不規則表面所產生的不規則反射光，大 201124661 幅提昇檢測結果的精確度。 根據上述目的’本發明提出一種確實可以將光源均勻射入於 檢測區上的一線照明裝置，該線照明裝置係設置於檢測設備的一 檢測區上，用以提供一影像感測器攝取該檢測區影像時所需之照 明光源，包括有： 複數線型光源，係以該檢測區為中心，呈圓弧拱形分佈設置 於該檢測區上方，以同時朝向該檢測區投射光線；及 一光擴散件，設置在介於該檢測區與該等線型光源之間，用 Φ 以使來自該等線型光源投射之光線均勻擴散後射向線型檢測區 其中，本發明之線照明裝置可進一步包括一補光裝置，該補 光裝置可提供與該影像感測器檢測方向相同之一同轴光，增加來 自該影像感測器方向的光源。 其中，該補光裝置包括有： 一線型光源；及 一分光鏡，設置於該影像感測器攝取影像的路徑中，用以將 該線型光源所產生之光線反射後形成一道入射於該檢測區上並且 *與該影像感測器檢測方向相同的照射光源。 “爲使熟悉該項技藝人士瞭解本發明之目的、特徵及功效，兹 =下述具體實施例，並配合所附之圖式，對本發明詳加說明如 【實施方式】 圖2係揭示本發照明裝置應用於—拾㈣^心示意201124661 VI. Description of the Invention: [Technical Field] The present invention is a line illumination device, particularly applied to a detection device for providing uniform illumination of a light source to a detection area to reduce the object to be tested Irregularly reflected light generated by the regular surface increases the accuracy of the detection results. [Prior Art] Conventionally, an illumination device applied to a detection device usually adopts a method in which a light source directly illuminates a detection area, but this method is often unable to achieve uniform illumination, for example, if used for detection When the object to be tested on an irregular surface (such as a laser tag or the back of a disc) causes irregular and unstable reflected light, which affects the image quality of the image sensor, the detection yield is degraded. And / or the rate of false positives has increased. In order to improve the aforementioned lack of illumination, there is another known technique for generating a uniform linear illumination source. As shown in FIG. 1, the main purpose is to arrange the light source u on both sides of the base 12 of the detection area while using a reflector 13 Optical diffusion (not shown in the figure) "to achieve the purpose of producing a uniform linear light source on the detection zone 14, however, this technique still has the disadvantage that the illumination source is not uniform enough, because the detection zone can be known from Light sources that are incident at different angles, but because the ray paths that enter the detection area at different angles are not equal, so that the degree of attenuation of the light is different, it may cause the object to be tested to have an irregular structure (for example, When the object of the laser structure is used, it still produces irregular reflected light, which causes the image quality of the image sensor 15 to be poor, resulting in a decrease in detection accuracy. SUMMARY OF THE INVENTION In view of the above, the main object of the present invention is to provide a line illumination device applied to a detection device capable of providing a uniform and stable linear light source of a detection area to reduce an irregular surface of the object to be tested. The irregular reflected light produced, the 201124661 large increase the accuracy of the test results. According to the above object, the present invention provides a line illuminating device which can accurately inject a light source into a detection area, and the line illuminating device is disposed on a detection area of the detecting device for providing an image sensor to take the detection. The illumination source required for the image of the area includes: a plurality of linear light sources, wherein the detection area is centered, and an arc-arc distribution is disposed above the detection area to simultaneously project light toward the detection area; and a light diffusion And disposed between the detection area and the linear light source, and Φ is used to uniformly diffuse the light projected from the linear light sources to the linear detection area, wherein the line illumination device of the present invention may further comprise a supplement The light device can provide one of the same coaxial light as the image sensor to detect, and increase the light source from the image sensor. The light-filling device includes: a line-type light source; and a beam splitter disposed in the path of the image sensor for capturing images, for reflecting the light generated by the line-type light source to form an incident on the detection area And the illumination source that is in the same direction as the image sensor. "In order to make the person skilled in the art understand the purpose, features and effects of the present invention, the following specific embodiments are described in detail with reference to the accompanying drawings. FIG. Lighting device applied - pick up (four) ^ heart
叫、口入1 π极凋衮置的一檢 攝取該檢測區31影像時所 括有佈置在檢測區31上方 201124661 的複數線型光源21，以及設置在介於檢測區31與前述複數線型光 源21之間的一光擴散件22。 其中該線型光源21的設置數量不拘，可依照所需之照明亮度 來決定配置數量以及光源型式。請配合圖2所示，圖中係顯示本 發明線照明裝置應用於一檢測裝置之側視示意圖；如圖所示，該 等線型光源21係以該檢測區31為中心，彼此保持平行並且呈圓 弧拱形分佈設置於該檢測區31上方，以同時朝向該檢測區31投 射光線。 所有線型光源21距離檢測區31的長度最好都相等，避免射 向檢測區31的光線路徑因為不等長而導致光線衰減程度不一致。 此外，線型光源21可以採用一般檢測裝置常用的燈管或是由複數 LED燈所構成之LED燈條。 月’J述之光擴散件22係為斷面呈圓弧拱形之長條罩體，該光擴 政件22係為一光擴散介質，由於該光擴散件22被設置在介於檢 測區31與該等線型光源21之間，讓線型光源21射向光擴散件22 7光線會在透過該光擴散件22時產生擴散作用，使得投射到檢測 區31上的光線均勻且柔和。於圖中所揭之光擴散件係為一半 圓筒，罩體’惟於實施時，光擴散件22包含但不限於圖中所示之 半圓筒造型，本發明之光擴散件22亦可選用一平板狀造型或各種 類似之其他造型。 經由上述之實施例，我們可以得到一種有別於習知技術之線 :明装置’係應用於一檢測設備上，例如印刷品檢測設備，並且 此夠對檢/舰31 ^:供均自丨峨射光源，可有效降低目制物不規 則表面產生的;^規貞,丨反射光，提高待測物受測結果的精確度。 為了進一步補強來自該影像感測器32攝像方向的照射光源， 如圖4所示，本發明可進一步設置一補光裝置4〇，用以提供與影 201124661 像感測器32檢測方向相同之一同轴光（如圖中虛線所示）。該補 光裝置40可利用一線型光源41以及一分光鏡42加以構成；實施 中所揭之分光鏡42係設置於該影像感測器32攝取影像的路徑 中，用以將線型光源41所產生之光線反射後，形成一道通過光擴 散件22上所開設之槽孔221，直接入射於該檢測區31上並且與影 像感測器32檢測方向相同的一道照射光源，增加來自影像感測器 32方向的光源。其中，前述之線型光源41包含但不限於一般檢測 裝置常用的燈管或是由複數LED燈所構成之LED燈條。 由以上說明可知，本發明之線照明裝置優點在於無論影像感 測器32位於任何角度照射檢測區31，線型光源21都可以作更均 勻的分配，所有線型光源21到檢測區31之間的光線路徑在各方 向上盡量保持等長的關係，並因為在線型光源21與檢測區31之 間置入一光擴散件22 ’可以使光線在經過光擴散件22後，均勻分 佈入射至檢測區31，以達到最佳的均勻照射光源。另外，附加的 補光裝置40’可配合影像感測器32的檢測方向隨之調整方向，以 補足同軸方向的光源。 以上所述，僅為本發明之較佳實施例而已，並非用來限定本 發明實施之範圍，舉凡依本發明之申請專利範圍所做的均等變化 與修飾，皆為本發明專利範圍所涵蓋。 201124661 【圖式簡單說明】 圖1係為習知檢測用之光產生器裝置； 圖2係為本發明線照明裝置之實施例立體示意圖； 圖3係為本發明線照明裝置之實施例侧視示意圖；及 圖4係為本發明線照明裝置之使用示意圖。 【主要元件符號說明】 光源Π 底座12 反射罩13 檢測區14 影像感測器15 線照明裝置2 線型光源21 光擴散件22 槽孔221 檢測區31 影像感測器32 補光裝置40 線型光源41 分光鏡42A detection of the π 极 衮 摄取 摄取 摄取 摄取 摄取 摄取 摄取 摄取 摄取 摄取 该 该 该 该 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 A light diffusing member 22 between. The number of the linear light sources 21 is not limited, and the number of configurations and the type of the light source can be determined according to the required illumination brightness. Please refer to FIG. 2, which is a side view showing a line illumination device of the present invention applied to a detecting device; as shown, the linear light sources 21 are centered on the detecting region 31 and are parallel to each other and present. An arcuate arch is disposed above the detection zone 31 to simultaneously project light toward the detection zone 31. Preferably, the lengths of all of the linear light sources 21 from the detection zone 31 are equal, so that the light path to the detection zone 31 is prevented from being inconsistent due to unequal lengths. In addition, the linear light source 21 can be a lamp tube commonly used in general detection devices or an LED light bar composed of a plurality of LED lamps. The light diffusing member 22 of the month is a long strip having a circular arc-shaped cross section, and the optical diffusing member 22 is a light diffusing medium, since the light diffusing member 22 is disposed between the detecting regions. Between the linear light source 21 and the linear light source 21, the linear light source 21 is directed toward the light diffusing member. The light is diffused when passing through the light diffusing member 22, so that the light projected onto the detecting portion 31 is uniform and soft. The light diffusing member disclosed in the figure is a half cylinder, and the cover body 'only when implemented, the light diffusing member 22 includes but is not limited to the semi-cylindrical shape shown in the drawing, and the light diffusing member 22 of the present invention can also be selected. A flat shape or a variety of other similar shapes. Through the above embodiments, we can obtain a line different from the prior art: the device is applied to a detecting device, such as a print detecting device, and this is sufficient for the inspection/ship 31 ^: The light source can effectively reduce the irregular surface generated by the target; the 贞 贞, 丨 reflect the light, and improve the accuracy of the measured result of the object to be tested. In order to further reinforce the illumination source from the imaging direction of the image sensor 32, as shown in FIG. 4, the present invention may further provide a light-filling device 4A for providing the same direction as the detection of the image 201124661 image sensor 32. Coaxial light (shown by the dotted line in the figure). The light-filling device 40 can be configured by using a linear light source 41 and a beam splitter 42. The beam splitter 42 disclosed in the embodiment is disposed in the path of the image sensor 32 for capturing images for generating the linear light source 41. After the light is reflected, a light source 221 is formed through the slot 221 formed in the light diffusing member 22, directly incident on the detecting area 31 and detected in the same direction as the image sensor 32, and is added from the image sensor 32. Directional light source. The linear light source 41 includes, but is not limited to, a lamp tube commonly used in general detection devices or an LED light bar composed of a plurality of LED lamps. As can be seen from the above description, the line illumination device of the present invention has an advantage in that the line type light source 21 can be more evenly distributed, regardless of the image sensor 32 at any angle of the illumination detecting area 31, and the light between all the line type sources 21 to the detection area 31. The path is kept as long as possible in all directions, and because a light diffusing member 22' is placed between the linear light source 21 and the detecting region 31, the light can be uniformly distributed to the detecting region 31 after passing through the light diffusing member 22. To achieve the best uniform illumination source. In addition, the additional light-filling device 40' can be adjusted in accordance with the detection direction of the image sensor 32 to complement the light source in the coaxial direction. The above is only the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. The equivalent variations and modifications made by the scope of the present invention are covered by the scope of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of an embodiment of a line illumination device of the present invention; FIG. 3 is a perspective view of an embodiment of a line illumination device of the present invention; FIG. 4 is a schematic view showing the use of the line lighting device of the present invention. [Main component symbol description] Light source 底座 Base 12 Reflector 13 Detection area 14 Image sensor 15 Line illuminator 2 Linear light source 21 Light diffuser 22 Slot 221 Detection area 31 Image sensor 32 Filling device 40 Linear light source 41 Beam splitter 42