經濟部智慧財產局員工消費合作社印一衣 507451 A7 7071twf.doc/006 07 五、發明說明（/ ) 本發明是有關於一種影像掃描裝置，且特別是有關 於一種透光板爲曲面結構之影像掃描裝置，其可以縮小影 像掃描裝置的體積。 隨著電腦性能的進步，以及網際網路、多媒體技術 的發展，影像掃描器（Scanner)已成爲個人電腦不可或缺的 標準配備。對於常用之平台式掃描器而言，一般包括一光 學系統以及一掃描傳動機構，透過光學系統可以將文件資 料之影像傳遞至一光感測器，光感測器可以是電荷耦合元 件（Charge-Coupled Device，CCD)或接觸式影像感測器 (contact image sensor，CIS)，而掃描傳動機構通常以步 進馬達爲驅動動力。另外，光感測器可以直接架構在掃描 傳動機構上，而直接進行掃瞄；亦可以將光感測器固定， 而透過一組光學鏡片架構在掃描傳動機構上，將掃描之光 線經光學鏡片組傳遞至光感測器進行掃描。 請參照第1圖，其繪示習知掃描器之立體圖。一掃 描器100具有一盒體110，在盒體110的內部具有一光學 系統(未繪示)及一掃描傳動機構(未繪示）。另外在盒體110 的上方開口部具有一透光板120,而文件（未繪示）可以放 置在透光板120上，藉由光學系統及掃描傳動機構來進行 掃描之動作。 在上述習知掃描器的結構中，由於透光板120爲平 板狀之結構，當欲掃描面積較大之文件時，則透光板120 的面積亦必須變大，使得掃描器1〇〇的水平截面積亦相對 地增加，如此掃描器100在空間擺設上的彈性便會顯得不 本紙張尺度適用中國國家標準（CNS)A.】規格（210 x 297公f ) ------------Aw ^--------^ — ------- (請先閱讀背面之注意事項再填寫本頁) 507451 A7 B7 7071twf.doc/006Yin Yiyi, Employee Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs, 507451 A7 7071twf.doc / 006 07 V. Description of the Invention (/) The present invention relates to an image scanning device, and in particular, to an image in which a light transmitting plate has a curved structure The scanning device can reduce the size of the image scanning device. With the improvement of computer performance and the development of Internet and multimedia technology, the Scanner has become an indispensable standard equipment for personal computers. For common platform scanners, they generally include an optical system and a scanning transmission mechanism. Through the optical system, the image of document data can be transmitted to a light sensor. The light sensor can be a charge-coupled device (Charge- Coupled Device (CCD) or contact image sensor (CIS), and the scanning transmission mechanism is usually driven by a stepping motor. In addition, the light sensor can be directly mounted on the scanning transmission mechanism for direct scanning; the light sensor can also be fixed, and a set of optical lens structures can be used on the scanning transmission mechanism to pass the scanned light through the optical lens. The group is passed to the light sensor for scanning. Please refer to FIG. 1, which shows a perspective view of a conventional scanner. A scanner 100 has a box body 110, and an optical system (not shown) and a scanning transmission mechanism (not shown) are provided inside the box body 110. In addition, a transparent plate 120 is provided at the upper opening of the box body 110, and a document (not shown) can be placed on the transparent plate 120 and scanned by an optical system and a scanning transmission mechanism. In the structure of the above-mentioned conventional scanner, since the light-transmitting plate 120 is a flat plate-shaped structure, when a document having a large area is to be scanned, the area of the light-transmitting plate 120 must also be large, so that the scanner 100 The horizontal cross-sectional area has also increased relatively, so that the flexibility of the scanner 100 in the space will appear to be different from the paper size. Applicable to China National Standard (CNS) A.] Specifications (210 x 297 male f) ------- ----- Aw ^ -------- ^ — ------- (Please read the notes on the back before filling this page) 507451 A7 B7 7071twf.doc / 006
五、發明說明（2J 足，致使無法有效利用空間。 因此本發明的目的就是在提供一種影像掃描裝置， 可以有效縮減影像掃描裝置的水平截面積，進而達到輕、 薄、短、小的要求，並不受限於欲掃描之文件的大小。 爲達成本發明之上述和其他目的，提供一種影像掃 描裝置，可用以掃描一文件，其至少包括：一盒體，此盒 體係爲中空的形狀，且盒體具有一開口部。一透光板，此 透光板爲曲面結構，且透光板嵌合於盒體之開口部，而文 件可置於透光板上。一光學系統，此光學系統位於盒體的 內部，且光學系統包括一燈源、一光感測器、一鏡片組、 一透鏡組，透過該光學系統可以將該文件之影像傳送到該 光感測器中。 依照本發明的一較佳實施例，其中上述之燈源的形 式可彎曲呈弧狀或爲直柱狀。另外，上述之透鏡組具有還 原文件影像之功能，然而亦可藉由一還原鏡或一軟體，將 經由透光板之文件影像還原成文件原始之影像。此外，影 像掃描裝置可以透過扣合片、壓合條或文件蓋，將文件固 定於透光板上。再者，透光板的材質可以是玻璃。 爲讓本發明之上述和其他目的、特徵、和優點能更 明顯易懂，下文特舉一較佳實施例，並配合所附圖式，作 詳細說明如下： 圖式之簡單說明： 第1圖繪示習知掃描器之立體圖。 第2圖繪示依照本發明一較佳實施例的一種影像掃 4 本紙張尺度適用中國國家標準（CNS)A4規格（2】0 X 297公复） (請先閱讀背面之注意事項㈣填寫本頁) rl裝 經濟部智慧財產局員工消費合作社印製 經濟部智慧財產局員工消費合作社印製 507451 7071twf.doc/006 gy 五、發明說明（J ) 描裝置之立體圖。 第3圖繪示依照本發明影像掃描裝置內部的光學系 統示意圖。 第3A圖繪示依照本發明另一實施例的影像掃描裝 置內部之光學系統剖面示意圖。 第4圖繪示依照第2圖中剖面線I - I之剖面示意 圖。 第5圖繪示本發明影像掃描裝置內之一種燈源與透 光板相關配置的示意圖。 第6圖繪示本發明影像掃描裝置內之另一種燈源與 透光板相關配置的示意圖。 第7圖繪示本發明影像掃描裝置上方之扣合片的示 意圖。 第7A圖繪示本發明影像掃描裝置之扣合片的組裝 示意圖。 第8圖繪示本發明影像掃描裝置上方之壓合條的示 意圖。 第8A圖繪示第8圖中剖面線Π-Π之剖面示意圖。 第9圖繪示本發明影像掃描裝置上方之文件蓋的示 意圖。 ， 第9A圖繪示第9圖中剖面線m-m之剖面示意圖。 第ίο圖繪示依照本發明影像掃描裝置之光學系統 剖面示意圖。 5 本紙張尺度適用中國國家標準（CNS)Al規格（2】〇 χ 297公釐） (請先閱讀背面之注意事項再填寫本頁)V. Description of the invention (2J is sufficient, which makes it impossible to effectively use space. Therefore, the object of the present invention is to provide an image scanning device that can effectively reduce the horizontal cross-sectional area of the image scanning device, thereby achieving light, thin, short, and small requirements. It is not limited to the size of the document to be scanned. In order to achieve the above and other objects of the present invention, an image scanning device is provided for scanning a document, which includes at least: a box body, the box system has a hollow shape, And the box body has an opening part. A light-transmitting plate, the light-transmitting plate has a curved structure, and the light-transmitting plate is fitted in the opening of the box body, and the document can be placed on the light-transmitting plate. An optical system, this optical The system is located inside the box body, and the optical system includes a light source, a light sensor, a lens group, and a lens group, and the image of the document can be transmitted to the light sensor through the optical system. A preferred embodiment of the invention, wherein the form of the above-mentioned lamp source can be curved in an arc shape or a straight column shape. In addition, the above-mentioned lens group has a function of restoring a document image, however The image of the document passing through the translucent plate can be restored to the original image of the document by a reduction mirror or a software. In addition, the image scanning device can fix the document to the translucent plate through a clasp, a compression strip or a document cover. In addition, the material of the light-transmitting plate may be glass. In order to make the above and other objects, features, and advantages of the present invention more comprehensible, a preferred embodiment is given below with the accompanying drawings, The detailed description is as follows: Brief description of the drawings: Figure 1 shows a perspective view of a conventional scanner. Figure 2 shows an image scan according to a preferred embodiment of the present invention. ) A4 specification (2) 0 X 297 public reply) (Please read the precautions on the back ㈣ fill in this page) doc / 006 gy V. Description of the invention (J) A perspective view of the scanning device. Figure 3 shows a schematic diagram of the optical system inside the image scanning device according to the present invention. Figure 3A shows another implementation according to the present invention. Figure 4 is a schematic cross-sectional view of the optical system inside the image scanning device. Figure 4 shows a schematic cross-section according to the section line I-I in Figure 2. Figure 5 shows a light source in the image scanning device of the present invention related to a light transmitting plate Schematic diagram of the configuration. FIG. 6 is a schematic diagram of the related configuration of another light source and the light transmitting plate in the image scanning device of the present invention. FIG. 7 is a schematic diagram of the fastening piece above the image scanning device of the present invention. FIG. 7A FIG. 8 is a schematic diagram of the assembly of the fastening piece of the image scanning device of the present invention. FIG. 8 is a schematic view of the compression strip above the image scanning device of the present invention. FIG. 8A is a schematic sectional view of the section line Π-Π Fig. 9 is a schematic diagram of a document cover above the image scanning device of the present invention. Fig. 9A is a schematic diagram of a cross-section line mm in Fig. 9. Figure ίο is a schematic cross-sectional view of an optical system of an image scanning device according to the present invention. 5 This paper size applies to Chinese National Standard (CNS) Al specifications (2) 0 χ 297 mm (Please read the precautions on the back before filling this page)
經濟部智慧財產局員工消費合作杜印製 507451 A7 7 07 ltwf. doc/ 00 6 __ B7_ 五、發明說明（Zp 圖式之標示說明： 100 :掃描器 200、300 :影像掃描裝置 110、210 :盒體 212 :開口部 120、220、420 :透光板 230 :光學系統 232、242、432 :燈源 234、434 :反射鏡 236、436 :透鏡組 238 :還原鏡 240、440 :光感測器 270 :扣合片 272 :凸塊 274 :凹口 280 :壓合條 282 :突起 310 :文件蓋 320 :文件蓋接合機構 330 :軟質結構體 244、444 ··光線 202、402 :文件 2〇4、404 :影像 250 :距離 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） -------------. I -----I ^-— — — 1111« — (請先閱讀背面之注意事項再填寫本頁) 507451 A7 B7 7 07ltwf·doc/00 6 五、發明說明（t) 實施例 (請先閱讀背面之注音？事項再填寫本頁) 請參照第2圖、第3圖，其中第2圖繪示依照本發 明一較佳實施例的一種影像掃描裝置之立體圖，而第3圖 繪示依照本發明影像掃描裝置內部的光學系統剖面示意 圖。一影像掃描裝置200，可用以掃描一文件202，其包 括一盒體210、一透光板220、一光學系統230，其中盒體 210係爲中空的形狀，且盒體210具有一開口部212。另外 透光板220爲曲面結構，而透光板220嵌合於盒體210之 開口部212，而文件202可置於透光板220上。此外，透 光板220的材質可以是玻璃。 如第3圖所示，光學系統230係由一燈源232、一 鏡片組、一光感測器240所組成，其中鏡片組可包括多個 反射鏡234(miiroi·)、一透鏡組236(lens)，其運作方式如下： 一燈源232射出一光線244到文件202上，而文件202的 影像204會反射至反射鏡234，經由反射作用，影像204 會通過透鏡組236，然後再投射於光感測器240中，其中 光感測器240可以是電荷耦合元件(CCD)。 經齊部fe»曰慧財產¾員X消費合作杜印製 請參照第4圖，其繪示依照第2圖中剖面線I - I之 剖面示意_。在上述的結構中，透光板220爲曲面的結構， 而文件(未繪示)係平貼於透光板220上進行掃描的動作， 並且就掃描同樣大小的文件而言，曲面結構之透光板220 上的文件投影到平面之距離250會小於習知平板結構之透 光板上的文件投影到平面的距離，故盒體210的開口部212 7 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） 507451 071twf.doc/006 A7 B7 經濟部智慧財產局員工消費合作社印製 五、發明說明（g ) 截面積可以縮小，因而可縮減影像掃描裝置200的水平截 面積，突破了傳統掃描器的侷限。 就影像掃描裝置內部的燈源與透光板相關配置而 言，可以有如下的方式，分別繪示於第5圖、第6圖，其 中第5圖繪示本發明影像掃描裝置內之一種燈源與透光板 相關配置的示意圖，而第6圖繪示本發明影像掃描裝置內 之另一種燈源與透光板相關配置的示意圖。如第5圖所示， 燈源232可以彎曲呈弧狀，而燈源232之弧狀曲率半徑與 透光板220之曲率半徑相同，並且燈源232的形狀可依透 光板220之曲率不同而不同。如第6圖所示，燈源242亦 可以爲直柱狀。一般而言，在習知平面狀之透光板上的文 件，其文件中心的亮度會高於兩邊，然而若依本發明第6 圖之設計，由於透光板220中心區域距燈源242較遠，可 以使燈源242較均勻地投射到透光板220上，使照射到透 光板220上文件(未繪示)之亮度較一致。 請參照第3圖，由於透光板220爲曲面的緣故，因 此文件202的影像204會呈現出彎曲的現象。爲解決此問 題，可以藉由透鏡組236將影像204還原成文件202在平 放時的影像，如此透鏡組236即具有還原影像的功能。另 外如第3A圖所示，其繪示依照本發明另一實施例的影像 掃描裝置內部的光學系統剖面示意圖，其中亦可以加入一 還原鏡238置於光感測器240與透鏡組236之間，然而還 原鏡238的配置並非侷限於上述的方式，亦可以安置在光 學系統230中的其他環節，只需在光感測器240接收到影 8 (請先閱讀背面之注音？ ‘ 事 填寫本頁) :裝 · 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） 經濟邨智慧財產局員工消費合作社印製 507451 五、發明說明) 像時，係爲文件202在平放時的影像即可。另外，亦可以 利用軟體控制的方式，將影像資料經過適當地運算轉換， 還原影像204成文件在平放時的影像。 影像掃描裝置還可以有一固定文件結構，其結構可 以有多種形式，分別繪示於第7圖、第8圖、第9圖，其 中第7圖繪示本發明影像掃描裝置上方之扣合片的示意 圖；第8圖繪示本發明影像掃描裝置上方之壓合條的示意 圖；第9圖繪示本發明影像掃描裝置上方之文件蓋的示意 圖。如第7圖所示，多個扣合片270位於透光板220之邊 緣，透過扣合片270可以將文件(未繪示）固定於透光板220 上，而扣合片270之組裝方式可以參見第7A圖，其繪示 本發明影像掃描裝置之扣合片的組裝示意圖，扣合片270 具有二凸塊272，盒體210靠近開口部212的地方還具有 二凹口 274，而扣合片270可以利用凸塊272與凹口 274 嵌合，使扣合片270固定於盒體210上。 請參見第8圖、第8A圖，其中第8A圖繪示第8圖 中剖面線Π-Π之剖面示意圖。多個壓合條280位於透光板 220的邊緣，藉由壓合條280可以將文件(未繪示）固定於透 光板220上，並且每一壓合條280的頂端部份還具有一突 起282，却此可以將文件壓合的更緊密，其中壓合條280 係直接成型於盒體210之開口部212的外緣。 請參見第9圖、第9A圖，其中第9A圖繪示第9圖 中剖面線ΠΙ -瓜之剖面示意圖。影像掃描裝置300還具有一 文件蓋310以及一文件蓋接合機構320，文件蓋接合機構 9 本紙張尺度適用中國國家標準（CNS)A4規格（210>< 297公釐） ^ - I I-----^----------— (請先閱讀背面之注意事項再填寫本頁) 507451 7〇71twf.doc/006 A7 B7 經齊節替慧犲轰笱員X消費合阼fi印製 五、發明說明（ί) 320位於文件蓋310之邊緣，藉由文件蓋接合機構320可 以將文件蓋310與盒體210連結，而文件蓋310爲一曲面 結構，且文件蓋310之曲率半徑與透光板220之曲率半徑 相同。另外，在文件蓋310的下方還具有一軟質結構體33〇， 如此當文件盡310盡合時，可以使文件（未繪示）貼緊於透 光板220上，而增進影像掃描的效果，其中軟質結構體330 的材質可以包括海綿(Sponge)或麥拉薄片(Myler Sheet)。 另外’曲面結構之影像掃描裝置亦可以應用在透射 式的光學系統中，其結構如第10圖所示，其中第1〇圖繪 示依照本發明影像掃描裝置之光學系統剖面示意圖。其中 燈源432係位於透光板420的上方，當燈源432射出一光 線444到文件402上之後，文件402的影像404會透射至 至下方的反射鏡434，經由反射作用，影像404會通過透 鏡組436，然後再投射於光感測器440中。由於上述的透 光板420係爲曲面結構，故影像404依然會有壓縮或扭曲 的現象，其解決方式與上述實施例雷同，可以使用還原鏡 或軟體控制的方式，在此不再贅述。而燈源432的形式可 以是圓弧狀亦可以是直柱狀。 綜上所述，本發明之影像掃描裝置，由於透光板爲 曲面的結構，而文件係平貼於透光板上進行掃描的動作， 因此曲面結構之透光板上的文件投影到平面之距離會縮 小，如此盒體的開口部截面積亦可以減少，因而可縮減影 像掃描裝置的水平截面積，突破了傳統掃描器的侷限，並 且本發明之影像掃描裝置不受限於欲掃描之文件的大小。 (請先閱讀背面之注音？事項¾填寫本頁) 裝·！ I 訂·！ ！！ #- 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） 507451 A7 7071twf,doc/006 D„ _d/_ 五、發明說明（q ) 而本發明之影像掃描裝置可應用於掃描器結構、傳真機結 構或影印機結構等。 雖然本發明已以一較佳實施例揭露如上，然其並非 用以限定本發明，任何熟習此技藝者，在不脫離本發明之 精神和範圍內，當可作些許之更動與潤飾，因此本發明之 保護範圍當視後附之申請專利範圍所界定者爲準。 ------------裝·--- (請先閱讀背面之注咅？事項再填寫本頁) 訂-------- 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐）Consumption cooperation by employees of the Intellectual Property Bureau of the Ministry of Economic Affairs, printed 507451 A7 7 07 ltwf. Doc / 00 6 __ B7_ V. Description of the invention (Zp diagram: 100: Scanner 200, 300: Image scanning device 110, 210: Box 212: openings 120, 220, 420: light transmitting plate 230: optical system 232, 242, 432: light source 234, 434: reflector 236, 436: lens group 238: reduction mirror 240, 440: light sensing Device 270: Fastening piece 272: Bump 274: Notch 280: Press-fit strip 282: Protrusion 310: Document cover 320: Document cover joining mechanism 330: Soft structure 244, 444, Light 202, 402: File 2 4, 404: Image 250: Distance to this paper scale Applicable to China National Standard (CNS) A4 specification (210 X 297 mm) -------------. I ----- I ^- — — — 1111 «— (Please read the notes on the back before filling this page) 507451 A7 B7 7 07ltwf · doc / 00 6 V. Description of the invention (t) Examples (Please read the note on the back? Matters before filling in this (Page) Please refer to FIG. 2 and FIG. 3, wherein FIG. 2 shows a perspective view of an image scanning device according to a preferred embodiment of the present invention, and FIG. 3 A schematic cross-sectional view of an optical system inside an image scanning device according to the present invention. An image scanning device 200 can be used to scan a document 202, which includes a box 210, a transparent plate 220, and an optical system 230, where the box 210 is It has a hollow shape, and the box body 210 has an opening portion 212. In addition, the light transmitting plate 220 is a curved structure, and the light transmitting plate 220 is fitted into the opening portion 212 of the box body 210. The document 202 can be placed on the light transmitting plate 220. In addition, the material of the translucent plate 220 may be glass. As shown in FIG. 3, the optical system 230 is composed of a light source 232, a lens group, and a light sensor 240. The lens group may include multiple A mirror 234 (miiroi ·) and a lens group 236 (lens) operate as follows: A light source 232 emits a light 244 onto the document 202, and the image 204 of the document 202 is reflected to the mirror 234 and is reflected by the reflection Function, the image 204 will pass through the lens group 236 and then be projected into the light sensor 240, wherein the light sensor 240 may be a charge coupled device (CCD). Please refer to Figure 4 for printing. The cross-section of the cross-section line I-I in Fig. 2 is schematic. In the above structure, the light-transmitting plate 220 is a curved structure, and the document (not shown) is attached to the light-transmitting plate 220 for scanning, and As far as scanning documents of the same size, the distance 250 on which the document on the light-transmitting plate 220 with a curved structure is projected to the plane is smaller than the distance on the plane when the document on the light-transmitting plate with the conventional plate structure is projected, so the opening of the box 210 Department 212 7 This paper size is in accordance with Chinese National Standard (CNS) A4 (210 X 297 mm) 507451 071twf.doc / 006 A7 B7 Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 5. The invention description (g) The cross-sectional area can be The reduction can reduce the horizontal cross-sectional area of the image scanning device 200 and break through the limitations of the conventional scanner. As far as the related arrangement of the light source and the light-transmitting plate in the image scanning device is concerned, there are the following ways, which are respectively shown in FIG. 5 and FIG. 6, wherein FIG. 5 shows a lamp in the image scanning device of the present invention. A schematic diagram of the related configuration of the light source and the transparent plate, and FIG. 6 is a schematic diagram of the related configuration of another light source and the transparent plate in the image scanning device of the present invention. As shown in FIG. 5, the light source 232 may be bent into an arc shape, and the arc-shaped curvature radius of the light source 232 is the same as the curvature radius of the light transmitting plate 220, and the shape of the light source 232 may be different according to the curvature of the light transmitting plate 220. But different. As shown in FIG. 6, the light source 242 may also be a straight column. Generally speaking, the brightness of the center of the document on the conventional planar transparent plate will be higher than that of the two sides. However, according to the design of FIG. 6 of the present invention, since the central area of the transparent plate 220 is farther from the light source 242, As a result, the light source 242 can be projected onto the light-transmitting plate 220 more uniformly, so that the brightness of a document (not shown) illuminated on the light-transmitting plate 220 can be more uniform. Please refer to FIG. 3, since the light-transmitting plate 220 is a curved surface, the image 204 of the document 202 will appear curved. To solve this problem, the lens group 236 can be used to restore the image 204 to the image of the file 202 when it is flat, so that the lens group 236 has the function of restoring the image. In addition, as shown in FIG. 3A, it is a schematic cross-sectional view of an optical system inside an image scanning device according to another embodiment of the present invention. A reduction mirror 238 can also be added to be placed between the light sensor 240 and the lens group 236. However, the configuration of the reduction mirror 238 is not limited to the above-mentioned method, and it can also be placed in other links in the optical system 230, as long as it receives the shadow 8 at the light sensor 240 (please read the phonetic on the back first? (Page): Packing · This paper size is in accordance with China National Standard (CNS) A4 (210 X 297 mm). It is printed by Economic Consumers' Property Bureau, Consumer Cooperatives, 507451. 5. Description of the invention. Time image. In addition, you can also use software to control the image data through proper calculation and conversion to restore the image 204 into an image when the document is placed flat. The image scanning device may also have a fixed file structure, and its structure may have various forms, which are respectively shown in FIG. 7, FIG. 8, and FIG. 9, and FIG. 7 shows the fastening piece above the image scanning device of the present invention. Schematic diagram; FIG. 8 illustrates a schematic diagram of a compression strip above the image scanning device of the present invention; and FIG. 9 illustrates a schematic diagram of a document cover above the image scanning device of the present invention. As shown in FIG. 7, a plurality of fastening pieces 270 are located on the edge of the light-transmitting plate 220. Through the fastening pieces 270, a document (not shown) can be fixed on the light-transmitting plate 220. Refer to FIG. 7A, which illustrates the assembly diagram of the fastening piece of the image scanning device of the present invention. The fastening piece 270 has two protrusions 272, and the box body 210 has two notches 274 near the opening 212. The engaging piece 270 can be fitted with the notch 274 by using the convex block 272 to fix the engaging piece 270 on the box body 210. Please refer to FIG. 8 and FIG. 8A, where FIG. 8A is a schematic cross-sectional view of the section line Π-Π in FIG. A plurality of pressing strips 280 are located on the edge of the light-transmitting plate 220, and a document (not shown) can be fixed on the light-transmitting plate 220 by the pressing strips 280, and a top portion of each of the pressure-pressing strips 280 also has a The protrusions 282, however, can compress the documents more tightly. The compression strip 280 is directly formed on the outer edge of the opening portion 212 of the box body 210. Please refer to FIG. 9 and FIG. 9A, where FIG. 9A is a schematic cross-sectional view of the section line II-melon in FIG. The image scanning device 300 also has a document cover 310 and a document cover joining mechanism 320. The document cover joining mechanism 9 is a paper size that conforms to the Chinese National Standard (CNS) A4 specification (210 > < 297 mm) ^-I I-- --- ^ ------------ (Please read the precautions on the back before filling out this page) 507451 7〇71twf.doc / 006 A7 B7 Jinghui for the Hui Xuanmen X consumer cooperation阼 fiPrinting 5. Description of the invention (ί) 320 is located on the edge of the document cover 310. The document cover 310 can be connected to the box body 210 by the document cover joining mechanism 320, and the document cover 310 has a curved structure, and the document cover 310 The curvature radius is the same as the curvature radius of the transparent plate 220. In addition, there is a soft structure 33o under the document cover 310, so that when the document 310 is fully matched, the document (not shown) can be attached to the transparent plate 220 to improve the effect of image scanning. The material of the soft structure 330 may include a sponge or a Myler Sheet. In addition, the image scanning device with a 'curved surface structure' can also be applied to a transmissive optical system, and its structure is shown in Fig. 10, where Fig. 10 is a schematic cross-sectional view of the optical system of the image scanning device according to the present invention. The light source 432 is located above the light-transmitting plate 420. After the light source 432 emits a light 444 onto the document 402, the image 404 of the document 402 will be transmitted to the reflecting mirror 434 below. Through reflection, the image 404 will pass The lens group 436 is then projected into the light sensor 440. Since the light-transmitting plate 420 has a curved structure, the image 404 may still be compressed or distorted. The solution is the same as that in the above embodiment, and a reduction mirror or software control method can be used, which will not be repeated here. The form of the light source 432 may be circular or straight. In summary, in the image scanning device of the present invention, since the light transmitting plate is a curved structure, and the document is scanned flatly on the light transmitting plate, the document on the light transmitting plate with the curved structure is projected onto the plane. The distance will be reduced, so that the cross-sectional area of the opening of the box body can also be reduced, so the horizontal cross-sectional area of the image scanning device can be reduced, which breaks through the limitations of the traditional scanner, and the image scanning device of the present invention is not limited to documents to be scanned the size of. (Please read the Zhuyin on the back? Matters ¾ Fill out this page) I order! !! !! #-This paper size applies the Chinese National Standard (CNS) A4 specification (210 X 297 mm) 507451 A7 7071twf, doc / 006 D. _d / _ 5. Description of the invention (q) The image scanning device of the present invention can be applied to Scanner structure, facsimile machine structure, photocopier structure, etc. Although the present invention has been disclosed above with a preferred embodiment, it is not intended to limit the present invention. Any person skilled in the art will not depart from the spirit and scope of the present invention. In addition, some changes and retouching can be made, so the scope of protection of the present invention shall be determined by the scope of the appended patent application. ------------ Equipped · --- (Please First read the note on the back? Matters and then fill out this page) Order -------- This paper size applies to China National Standard (CNS) A4 (210 X 297 mm)