M270588 八、新型說明： 【新型所屬之技術領域】 . 本創作係有關種平口式掃描器，特別是關於一種不需移動鏡頭或感測器位 置，即可校正焦距之平台式掃描器。 【先前技術】 在以往所訂來的文件，因在科技尚未發達到研發出電子齡或是電子播 案遺失時’要敎縣存下來，就必_請掃減電子㈣，峨得有效保 存，因此，掃描器也逐漸成為現在科技中重要的一項產品。 · -般而言常見的掃大約分為掌上型掃描器（Handy如耐）、饋紙式 掃描器（Sheetfed Scanner )、平台式掃描器⑺仙时&咖從）、底片掃描器 (Fib Scanner)及滚筒式掃描器（Dr咖Scanner)，其中以平台式婦描器最受歡 迎，其透過内部的光電機組進行掃描，幾乎可以掃描各種類型的文稿，從書籍、 報章雜w甚至疋可樂罐’只要能放在平台式掃描器文件置放玻璃上的物件都 可以進订掃描’加上平台式掃描器高速、穩定的影像品質及低廉價格深受大 幕喜愛，也因此近幾年來，隨著相關配件的開發，如：光罩、片夾等，平台式^ 掃描器也可支援郷片掃描功能，也可以掃描幻燈片和正負底片等。 一般平台式掃描器在進行穿透稿之膠片（叫的掃描時，為使使用者操 作便利便會侧膠片夾（Fll|n H〇lder)來夾持待掃描之膠片物件再將盆 放置在掃描器的文件置放玻璃上來進行穿透式掃描，但是因為夾持穋片夾有其 實際厚度，餅細權舰像—恤射稿恤逝放玻璃上， 如第i圖所示’而使得穿透稿位請會較反射稿位請偏移—段距離^，-造成穿透鋪_ 1G6會落在反射輸_⑽前规，耻纽成離隹- 5 M270588 第2圖所示為本創作之平台式掃描器之内部結構示意圖，平台式掃描器包 括一玻璃平台201，其上係放置至少一掃描元件，並有一光源2〇3照射掃描元件， 以產生-反射·，此反射絲人射至-綱，其触反就_反射出， 並有一感測器205可接收反射光線而產生一影像，或者利用一驅動裝置214移 動一平板玻璃208至鏡頭204及感測器205間，使反射光線透過鏡頭2〇4而入 射至平板玻璃208，再入射至感測器2〇5而產生影像。在平台式掃描器内設置有 一光源203、一玻璃平台201、一鏡頭2〇4、一感測器205,如電荷耦合元件(charge -coupled device ; CCD)及一平板玻璃2〇8，平台式掃描器之光路示意圖如第 3圖及第4贿示，首先如帛3騎示之光路示意目，當欲進行掃歡掃描元件 為反射稿時，將掃描元件放置在玻璃平台上形成一反射稿位置2()2，並且利用光 源照射反射稿，使得掃描元件會產生光線而入射至鏡頭204，此鏡頭204因此將 光線入射至感測器，而在感測器之位置形成-反射稿成像位置206，而產生-影 像，此時平板玻璃208並未移動，然當欲進行掃描之掃描元件為穿透稿，如膠 片時’光路不意圖如第4圖所示，穿透稿位置210因為膠片失厚度的關係，因 此间度會較反射稿位置2G2偏移一段的距離，因此便利用一厚度為t之平板 玻璃208移至鏡頭204及感測器間，使得原本落在反射稿成像位置206前AL距 離之穿透稿成像位置212，會因為加上厚度t之平板玻璃2⑽所造成的影響，而 使付穿透稿成像位置212會往後平移至反射稿成像位置206,而使得反射稿成像 位置206與穿透稿成像位置212重疊。 中如第5圖所示，平板玻璃208之位置，可利用一驅動裝置214來移 動，當务一 ^ ^田％件為穿透稿時，利用驅動裝置214將平板玻璃208移動，如旋轉 至鐘：頭2〇4及感測器間’使得穿透稿成像位置212會往後平移至反射稿成像位 M270588 置206而使焦距洛於同-點’因此不需移動鏡頭⑽或感測器的位置便可達到 對焦校正。 另外’上述之平板玻璃208之厚度係經由鏡頭2〇4設計的光學計算確實 算出實際數值，如第6圖所示’當在光路中加上—平板玻璃娜，會使得成像光 路延長’因此加上-厚度為t之平板玻璃2〇8，使得穿透稿成像位置由原來的A 移至A’ ’如此’在掃描穿透稿時，亦可制如同掃描反射稿之焦距而不必動 到感測器或鏡頭204來重新對焦，其中，平板玻璃2()8之厚度t係由下式計算 出’ N為平板玻璃2〇8之折射係數，AL $穿透稿位置偏移反射稿位置之距離：M270588 8. Description of the new type: [Technical field to which the new type belongs]. This creation is about a flat-mouth scanner, especially a flat-bed scanner that can correct the focal length without moving the lens or sensor position. [Previous technology] In the past, the documents that were ordered in the past, because the technology has not yet reached the electronic age of research and development or the electronic broadcast case is missing, 'To be saved in the county, you must _ please reduce the electronic badges, Ede effectively saved, Therefore, the scanner has gradually become an important product in science and technology. ·-In general, common scans are roughly divided into handheld scanners (Handy), sheetfed scanners, flatbed scanners Xianxian & coffee, Fib Scanner ) And roller scanner (Dr Coffee Scanner), the most popular of which is the platform type scanner, which scans through the internal photoelectric unit, which can scan almost all types of manuscripts, from books, newspapers, and even cola cans. 'As long as it can be placed on the flatbed scanner document placement glass, you can order and scan' coupled with the high speed, stable image quality and low price of the flatbed scanner, which has been loved by the curtain, so in recent years, with the With the development of related accessories, such as photomasks, film holders, etc., the platform ^ scanner can also support the film scanning function, and can also scan slides and negatives. In general, a flatbed scanner performs penetrating film (called scanning, in order to facilitate the operation of the user, it will hold a film holder (Fll | n Holder) to hold the film object to be scanned before placing the pot in The document of the scanner is placed on the glass for penetrating scanning, but because of the actual thickness of the holding cymbals, the cake-like image of the ship—the manuscript shirt is placed on the glass, as shown in Figure i '. The penetrating manuscript will be offset from the reflective manuscript by a distance of ^,-causing the penetrating shop _ 1G6 will fall on the reflection input _ ⑽ front rule, the shame is separated from the 隹-5 M270588 Figure 2 shows this Schematic diagram of the internal structure of the created flatbed scanner. The flatbed scanner includes a glass platform 201 on which at least one scanning element is placed, and a light source 201 is used to illuminate the scanning element to generate-reflection. When it hits the gangue, it touches and reflects back, and a sensor 205 can receive the reflected light to generate an image, or use a driving device 214 to move a flat glass 208 between the lens 204 and the sensor 205, so that The reflected light passes through the lens 204 and enters the flat glass 208, It is then incident on the sensor 205 to generate an image. A light source 203, a glass platform 201, a lens 204, and a sensor 205, such as a charge-coupled device, are arranged in the platform scanner. CCD) and a flat glass 208, the schematic diagram of the optical path of the platform scanner is shown in Figure 3 and the fourth bribe, first of all, as shown in Figure 3, the schematic diagram of the optical path, when you want to scan the scanning element is a reflection draft , Placing the scanning element on a glass platform to form a reflective draft position 2 () 2, and illuminating the reflective draft with a light source, so that the scanning element generates light and enters the lens 204, and this lens 204 therefore emits light to the sensor, At the position of the sensor, a reflection manuscript imaging position 206 is formed, and an image is generated. At this time, the plate glass 208 is not moved, but when the scanning element to be scanned is a penetrating manuscript, such as a film, the optical path is not intended to be As shown in Figure 4, the position 210 of the penetrating manuscript is offset by a distance from the position 2G2 of the manuscript because of the loss of film thickness. Therefore, it is convenient to use a flat glass 208 with a thickness of t to move to the lens 204 and the lens. Test room The penetrating manuscript imaging position 212, which was originally located at the AL distance in front of the reflecting manuscript imaging position 206, will be moved backward to the reflecting manuscript due to the influence caused by the thickness of the flat glass 2⑽. The imaging position 206, so that the reflection draft image position 206 and the penetration draft image position 212 overlap. As shown in Figure 5, the position of the flat glass 208 can be moved by a driving device 214. When the piece is a penetrating manuscript, the driving device 214 is used to move the flat glass 208, such as rotating it to the clock: the head 204 and the sensor ', so that the penetrating manuscript imaging position 212 will be translated to the reflective manuscript imaging position M270588. 206 and the focal length is less than the same-point ', so the focus correction can be achieved without moving the lens or the position of the sensor. In addition, 'the thickness of the above-mentioned flat glass 208 is indeed calculated through the optical calculation designed by the lens 204, as shown in FIG. 6' When the flat glass is added to the optical path, the imaging optical path will be extended '. Top-thickness of the flat glass 208, so that the imaging position of the penetrating manuscript is moved from the original A to A. 'So' When scanning the penetrating manuscript, the focal length of the scanning manuscript can be adjusted without moving the sensor. The lens or lens 204 is used to refocus. Among them, the thickness t of the plate glass 2 () 8 is calculated by the following formula: 'N is the refractive index of the plate glass 20, and the position of the penetrating manuscript offsets the position of the reflecting manuscript. distance:
f_NxAL 本創作提出-種可校正焦距之平台式掃描器，係糊—平板麵，當掃描 元件為反射稿時，不在鏡頭及❹m，人平板玻璃，而#掃描元件為穿透稿 時’便在鏡頭及感測器之間加入平板玻璃，使得原本穿透稿成像位置落於反射 稿成像位置前-段距離之焦距，可在不需移動鏡贼感位置進行重新對焦 之前提下，使得反射稿及穿透稿之成像位置皆位於感測器上，而達到對焦校正。 以上所述係藉由實施例說明本創作之特點，其目的在使熟習該技術者能瞭 解本創作之内容並據以實施，而非限定本創作之專利範圍，故凡其他未脫離本 創作所揭示之精神而完成之等效修飾或修改，仍應包含在以下所述之申請專利 範圍中。 M270588 【圖式簡單說明】 第1圖為習知平台式掃描器之光路示意圖。 第2圖所示為本創作之平台式掃㈣之内部結構示意圖。 第3圖為本創作之平台式掃描器掃描反射稿之光路示意圖。 第4圖為本_之平^掃描器職穿透稿之光路示意圖。 第5圖為本創作之驅動裝置移動平板玻璃之示意圖。 第6圖為本創作之平台式婦描器設置平板玻璃的焦距示意圖 【主要元件符號說明】 1〇4反射稿位置 108反射稿成像位置 203光源 205感測器 208平板玻璃 212穿透稿成像位置 102穿透稿位置 106穿透稿成像位置 201玻璃平台 202反射稿位置 204鏡頭 206反射稿成像位置 210穿透稿位置 214驅動裝置f_NxAL This work proposes a platform-type scanner capable of correcting focal length, which is a paste-flat surface. When the scanning element is a reflection draft, it is not in the lens and ❹m, and it is a flat glass, and #scanning element is a penetrating draft. A flat glass is added between the lens and the sensor, so that the original penetrating manuscript imaging position falls in front of the focal length of the reflecting manuscript imaging position, and can be lifted before refocusing without moving the mirror position to make the reflecting manuscript. The imaging positions of the penetrating manuscript and the penetrating manuscript are located on the sensor to achieve focus correction. The above is the description of the characteristics of this creation through the examples. The purpose is to enable those skilled in the art to understand the content of this creation and implement it, not to limit the scope of patents for this creation. Equivalent modifications or amendments made by the spirit of disclosure should still be included in the scope of patent application described below. M270588 [Schematic description] Figure 1 is a schematic diagram of the optical path of a conventional platform scanner. Figure 2 shows the internal structure of the platform sweeper of the creation. Figure 3 is a schematic diagram of the optical path of the reflective draft scanned by the platform scanner. Figure 4 is a schematic diagram of the light path of the scanner penetrating manuscript. Fig. 5 is a schematic diagram of the moving plate glass driven by the driving device of the creation. Figure 6 is a schematic diagram of the focal length of the flat glass set for the platform-type profiler of the creation. [Description of the main component symbols] 104 Reflected position 108 Reflected position 203 Light source 205 Sensor 208 Flat glass 212 Penetrated position 102 Penetrating manuscript position 106 Penetrating manuscript imaging position 201 Glass platform 202 Reflecting manuscript position 204 Lens 206 Reflecting manuscript imaging position 210 Penetrating manuscript position 214 Driving device