A7 B7 五、發明説明（ 發明領域： 本發明係與-種照度調整装置有關 種掃描系統應用領域中的照度調整裝^^ 描時對於待掃描物的照度。 Λ $ 發明背景= 隨著電子工業的進步 7及電子科技應用的 電子工業已成為廿世紀中最重要的工業之一 計算系統及處理系統效能 ,^ 筢上的提昇，已有勉 子產品，如電腦、诵邻 畀越 、丄 ^ 通訊、U及各項消費性雷 被頻繁的應用於日當士年'占 q㊉生活中。在近年來， .電脑等產品在處理述疮& ^ 趣理速度及資料儲存與交換 強，圖形處理的效能大為增加，使 頻繁的使用，而在處理 叩隹影像擷取、處理、 應用上扮演極為重要的角色。 丹遞、 然而，隨著各項影像處理應 理系統效能的提異，掷权口益頻 針接* 掃描^统的影像品質 以使影像感測元件於最佳的操作範園= 圖素感測效果。 發揮. 在不限制本發明精神及應用範圍下， 茲張尺度適 是有關於一 整或修正掃 快速發展， ，隨著多種 來越多的電 子產品等， 於處理器及 能力上的增 系統有更為 及輸出等的 繁及各項處 之要求亦相 品質的要素 的照度值， 最好的影像 T即以一平 -Ί”νΐ〇;^广: Α7 Β7 五、發明説明（ 台式掃瞄器的應用為例，介紹本發明的背景 圖所示，係、為-平台式掃描器中部分結構的：= 圖，待掃描物10放置於文稿玻璃12之上，待掃插物二可 所示的文件、或是如照片、實物等的物體，以 *己錄其表面影像，以目前較為常見之平台式掃插式钟 的設計而言，是將待掃描物10靜置於文稿玻螭Q之:， 並採用移動整個影像擷取裝置14的方式，逐一以平行移 動方式掃描並記錄各個平行線的影像訊號，而影像擷取 裝置14上即可設置光源16，以照亮待掃描物1〇，而使其 表面的影像能夠被順利的讀取。 ' 在影像擷取裝置14之中，一般是透過反射鏡及鏡片 或鏡片組的配合成像，再由如電荷耦合裝置 coupled device; CCD)等的影像感測_元件來感測待掃描物 1 0上的圖像，但是由於影像感測元件是較為敏感的光學 疋件’因此其對影像的感應具有一較佳的亮度的範圍 值’因此若光源對待掃描物丨0提供的照明亮度過高或是 過低’而使待掃描物1〇表面所提供的反射光線過強或過 弱’皆會使影像感測元件對影像感測的能力受到影響， 並導致影像掃描品質的下降。 經濟部中央標準局負工消費合作社印製 (請先閱讀背面之注意事項再填寫本頁} 在理想的設計狀況中，由於光源16的強度、影像感 測元件的感測亮度範圍、控制光源丨6的週邊電路、光源 16與待掃描物10間的距離、以及如鏡片及反射鏡等的各 參數或元件狀態，均為已知之條件，因此在設計時若能 使各條件間的能有良好的配合，理論上可於產品製造時 本紙張尺家標準(CNS (训靡么七 經濟部中央標準局貝工消费合作社印製 A7 B7 五、發明説明（ 產生適當的照射條件，而於掃描時得到良好的影像感測 能力及品質。 然而’由於在實際產品的製造上，各個元件可能在 規格上會與設計值間有差距，以使用小型曰光燈管的光 源1 6為例’其亮度即可能會有約正負丨〇%至丨5%的誤差， 加上電荷賴合元件對光線的敏感程度亦可能有高達1〇%至 15的差距，而以控制曰光燈管的變壓或轉換電路為例， 亦可能因元件及電路特性的不同而有約1〇 %的上下變動 性’因此單以上述三項條件變化的加乘結果，即可能使 系統在對照度的敏度程度上產生極大範圍的變異，而使 系統對待掃描物的掃描效果會因影像亮度的過度飽和或 極度不足而大受影響，亦使影像品質因而劣化。 在目前掃描器的設計及製造上，針對上述的問題， 並無有效的解決方法’而較常使用的補救方式之一，即 是將各個具有不同正負誤差量的元件相組备於同一系統 之中’利用其或正或負的差值產生相互補償的效果，例 如使用亮度過亮的光源與感光特性較差的電荷耦合元件 相配合’而產生相互補償的作用，以減少問題的嚴重 性。 但是以元件替換或配合的方法並無法完全解灰照度 過度或不足的問題，除此之外，此種方，法不僅需為了配 合各個元件的差異性、而增加生產過程的人力與時間成 本’在配合後的精確度亦無法有良好的控制，因而形成 掃描系統設計、製造、及影像素質提昇上的一大難題與 (請先閱讀背面之注意事項再填ίϊ·5本頁)A7 B7 V. Description of the invention (Field of the invention: The present invention relates to a kind of illuminance adjusting device, an illuminance adjusting device in the application field of a scanning system, and an illuminance of an object to be scanned during scanning. Λ $ Background of the invention = With the electronics industry Progress 7 and the electronics industry in the application of electronic technology have become one of the most important industries in the 21st century. The performance of computing systems and processing systems has been improved, and there have been products such as computers, recitations, and more. Communications, U, and various consumer mines are frequently used in Japanese occupations in recent years. In recent years, .computers and other products have been used to deal with sores & ^ interesting reason speed and strong data storage and exchange, The performance of graphics processing has greatly increased, making frequent use, and it plays an extremely important role in processing, image acquisition, processing, and application. Dandy, however, with the improvement of system performance of various image processing The right-to-right pin-to-pin connection * scans the image quality of the system to make the image sensing element in the best operating range = pixel sensing effect. Exerting. Without limiting the spirit and scope of the present invention, Zhang Zhishi is related to the rapid development of a complete or modified scan. With more and more electronic products, etc., the increase in processors and capabilities has increased the complexity and output requirements of various places. The illuminance value of the element of phase quality, the best image T is Yiping-Ί ”νΐ〇; ^ 广: Α7 Β7 V. Description of the invention (Application of desktop scanner as an example, as shown in the background diagram of the present invention, Part of the structure of the flatbed scanner: = drawing, the object to be scanned 10 is placed on the document glass 12, and the object to be scanned 2 can be a document or an object such as a photo, a physical object, etc. * The surface image has been recorded. According to the design of the currently common platform-type sweep-insertion clock, the object to be scanned 10 is placed on the document glass Q: and the entire image capturing device 14 is moved. Scan and record the image signals of each parallel line one by one in a parallel movement mode, and a light source 16 can be set on the image capture device 14 to illuminate the object to be scanned 10 so that the image on the surface can be read smoothly. . 'In the image capture device 14 Generally, imaging is performed through the combination of a mirror and a lens or a lens group, and then an image sensing element such as a charge coupled device (CCD) is used to sense the image on the object 10 to be scanned. The measuring element is a more sensitive optical element, so its sensing of the image has a better range of brightness. Therefore, if the light source to be scanned is too high or too low, the object to be scanned 10 The reflected light provided by the surface is too strong or too weak, will affect the ability of the image sensing element to image sensing, and lead to the degradation of image scanning quality. Printed by the Consumers Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs ( Please read the precautions on the back before filling this page} In an ideal design situation, due to the intensity of the light source 16, the sensing brightness range of the image sensing element, the peripheral circuit that controls the light source, the light source 16, and the object to be scanned 10 The distance between them, as well as various parameters or component states such as lenses and reflectors, are known conditions. Therefore, if the conditions can be well matched, This paper ruler can be used at the time of product manufacturing (CNS (printed by the Central Standards Bureau of the Ministry of Economic Affairs and printed by the Bayer Consumer Cooperative A7 B7). 5. Description of the invention (produces appropriate irradiation conditions, and obtains good images when scanning Sensing ability and quality. However, 'because in the manufacture of actual products, there may be a gap between the specifications of the individual components and the design value. Take the light source 16 using a small fluorescent tube as an example', and its brightness may be about plus or minus 丨 0% to丨 5% error, plus the sensitivity of the charge-dependent components to light may also vary by as much as 10% to 15, and the control of the transformer or conversion circuit of the fluorescent tube as an example, may also be caused by the components and There are about 10% up and down variability due to different circuit characteristics. Therefore, the result of the multiplication of the above three conditions alone may cause the system to produce a wide range of variations in the sensitivity of the contrast and make the system treat The scanning effect of the scanned object will be greatly affected by the excessive saturation or extreme lack of image brightness, and the image quality will be deteriorated. In the current design and manufacture of scanners, there is no effective solution to the above problems. One of the more commonly used remedies is to group components with different positive and negative error amounts in the same system. "Using its positive or negative difference to produce mutual compensation effects, such as using a light source with too bright light and a charge-coupled element with poor photosensitive characteristics" to produce a mutual compensation effect to reduce the severity of the problem. However, the method of component replacement or matching cannot completely solve the problem of excessive or insufficient gray illuminance. In addition, in this way, the method not only needs to increase the labor and time costs of the production process in order to match the differences of each component. After the cooperation, the accuracy can not be well controlled, so it has become a big problem in the design, manufacture, and image quality of the scanning system (please read the precautions on the back before filling in this page).
五、發明説明（） 挑戰。 &JO的及概述： 經濟部中央標準局員工消費合作社印製 本發明的 描系統之中。 本發明的 合各個元件的 本發明的 照度至較佳值 問題，以降低 本發明，中 影像擷取裝置 於受光後反射 描物影像以產 像擷取裝置上 與光源之間， 整光源對待掃 進—步的 點，以供位置 於上述之影像 端於滑槽中滑 目的為提供一種照度調整裝置，可應用於掃 另一目的為提供一種照度調整裝置，用以配 不同公差’調整被掃描受照明的亮度。 另一目的為提供一種照度調整裝置，可調整 ，避免光感測元件受光過度飽和或是不足的 生產成本’提昇掃描系統的影像品質。 掃描系統之照度調整裝置可包含待掃描物、 、光源、以及光源位置調整機構；待掃描物 其表面影像；影像擷取裝置則用以感測待掃 生影像訊號；光源係以可移動方式設置於影 ;光源位置調整機構則設置於影像擷取裝置 以產生光源相對於影像擷取裝置之移動，調 描物之照度。 ’上述之影像擷取裝置上可包含複數個扣合 調整機構扣合於不同位置而變化照度；或是 擷取裝置設置滑槽，並使位置調整機構之兩 動，以調整光源位置而變化照度。 本紙張尺度適用中國國家標準（CNS ) Α4規格（210X297公漦） (請先閱讀背面之注意事項再稹寫本頁) 經濟部中央標隼局負4消费合作社印製 A7 ______137 五、發明説明（) ~~' 圖式筋單說明： 第一圓 為傳統掃描系統中部分結構的側視示意圖。 第二圖 為本發明中之照度調整裝置、在應用於平台式 掃描系統中時’其部分結構的侧視示意囷。 第三圖 為本發明應用圓弧狀滑槽時之側視圖。 發明詳細說明： 本發明中提供一種照度調整裝置，以應用於掃描系統 之中’並可配合各個元件的不同公差，調整被掃描物受照 明的亮度，利用本發明中光源位置調整機構的加入，可調 整光源的位置、而變化光源對於待掃描物之照度。藉由照 度調整裝置的作用，可避免光感測元件在掃描時因受光^ 度飽和或是不足而產生的感測問題，並降低生產成本，提 昇掃描系統的影像品質。 在不限制本發明之精神及應用範圍下，以下即以較 為常見的千台式掃猫..系統之應用為例，介紹本發明的背 景，而熟知此領域技藝者，當可運用等同於本發明中所 介紹之裝置’應用於各種不同的掃描系統之中，而達成 等同之照度調整的目的與效果。 參見第二圖所示，即為本發明中之照度調整裝置、 在應用於平台式掃描系統中時’其部分結構的側視示意 圖’在照度調整裝置之中可包含待掃插物2〇、影像擷取裝 置22、光源24、以及光源位置調整機橼26等。 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公#_ ) II裝—— (請先聞讀背面之注意事項#.’%(?!本.頁} 、-口 經濟部中央標準局貝工消费合作社印製 A7 ___________ B7 五、發明説明（） 待掃描物20即為掃描系統中所欲取得其影像的標的 物，待掃描物20於受光後反射其表面的影像，以提供影像 或文子等圖素組合之資訊，待掃描物2〇可為如圖中所示的 文件、或疋如照片、實物等的其他物體，一般而言，待 掃描物20可放置於圖中所示的透明性平台28上，透明性 平台28可使用一般應用的文稿玻璃或其他的透明性平板 狀承托材質》 影像擷取裝置22則用以感測待掃描物2〇之影像，以產 生可供處理的影像訊號，在影像擷取裝置22之中，可包含 反射鏡片組及鏡頭或鏡片組，以將待掃描物2〇表面受照明 後的影像成像至光學感測元件之上’以目前的應用而言， 光學感測元件可使用如電荷耦合裝置（charge_c〇upled device; CCD)、接觸式影像感測裝置（c〇ntact image sens(n; cis)、或者是其他的光敏性元件，例如金氧半元件（metai oxide semiconductor device; MOS device)等等。 光源24並以可移動的方式設置於影像擷取裝置22之 上’本例中光源24係透過光源位置調整機構26設置於影 像擷取裝置22之上’如圖中虛線所示之不同位置的調整 連結’以目前最為頻繁的應用為例，光源24可使用約略 為長條狀之日光燈管光源、並配合相關的變壓系統及控制 電路，以提供待掃描物20上之掃描區域所需的照明。 位置調整機構26即設置於影像擷取裝置22與光源 24之間，藉由位置調整機構26相對於影像擷取裝置上不 同位置之移動’即可調整光源24對於待掃描物2〇之照 本紙張尺度適用中國國家標準（CNS ) Λ4規格（210X297公釐） Ί-c^------ΪΤ------^1 (請先閱讀背面之注意事項再填{:¾本頁) 經濟部中央標準局員工消費合作社印製 五、發明説明（ 度；如圖中所示，由於在進行掃描時，待掃描物20上 有特定區域的影像會成像至影像感㈣元件上，目此在移動 光源24的位置時，即會改變光源24相對於待掃描物2〇 之距離及光線入射於掃描目標區域的角度，以本例而古， 若光線之入射角為如圖中所示之0，而光源24相對於待 掃描物20的距離為d，則待掃描物2〇表面的照度即會正 比於cos 0，而反比於距離d的平方值’而由此角度及距 離的變化即可連成照度調整的目的。 照度調整裝置26的結構可以多種不同的方式實施， 例如可於影像擷取裝置22上設置多個扣合點，例如圖中 所不之三個扣合點22a、22b、及22c，而位置調整機構 26上即具有可扣合於扣合點的開口 26b，以供位置調整機 構26扣合於不同的位置而變化照度，亦可 多不同位置分布的扣合點。 更 照度調整裝置26的另一種結構，則可於影像擷取裝 置22上設置一組滑槽、如第三圊中所示之滑槽22d，以 長條狀之光源而言，滑槽22d可以成對的方式分設於左右 兩側，位置調整機構2 6可利用其兩端的凸出處2 6 c於滑 槽22d中滑動，以調整光源24的位置而變化照度；以較 佳實施例而言，滑槽22d可為如圖中所示之略呈圓弧形的 滑槽，以達成較為精密的照度調整效果，亦可視設計及所 需之照度調整範圍的不同而使用直線狀或是其他形狀的滑 槽。 而在使用可滑動調整的位置調整機構設計時，為了能 f請先閱讀背面之注意^項再填寫本頁)V. Description of the Invention () Challenge. & JO's and Overview: Printed by the Consumers' Cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs of the present invention. In the present invention, the problem of the illuminance of the present invention, which combines various elements, is better. In order to reduce the present invention, the image capture device reflects the image of the object after receiving light to produce an image capture device and the light source, and the entire light source is to be scanned A further step for the position of the above image to slide in the chute. The purpose is to provide an illuminance adjustment device that can be used for scanning. The other purpose is to provide an illuminance adjustment device for different tolerances to adjust the scan. Illuminated brightness. Another object is to provide an illuminance adjusting device which can be adjusted to avoid over-saturation or insufficient production cost of the light sensing element to improve the image quality of the scanning system. The illuminance adjustment device of the scanning system may include an object to be scanned, a light source, and a light source position adjustment mechanism; an image of a surface of the object to be scanned; an image capturing device for sensing an image signal to be scanned; the light source is set in a movable manner In the shadow; the light source position adjustment mechanism is set on the image capture device to generate a movement of the light source relative to the image capture device, and adjust the illumination of the object. 'The above image capture device may include a plurality of buckle adjustment mechanisms which are fastened at different positions to change the illuminance; or the capture device may be provided with a slide groove and the position adjustment mechanism may be moved to adjust the position of the light source to change the illuminance . This paper size applies Chinese National Standard (CNS) A4 specification (210X297 gong) (Please read the notes on the back before writing this page) Central Standards Bureau of the Ministry of Economic Affairs, printed by A4 Consumer Cooperative, A7 ______137 5. Description of the invention ( ) ~~ 'Illustration of ribs: The first circle is a schematic side view of some structures in a traditional scanning system. The second figure is a schematic side view of a part of the structure of the illuminance adjusting device according to the present invention when it is applied to a flatbed scanning system. The third figure is a side view when an arc-shaped chute is used in the present invention. Detailed description of the invention: The present invention provides an illuminance adjustment device for use in a scanning system, and can adjust the brightness of the scanned object's illumination according to the different tolerances of various components, using the addition of a light source position adjustment mechanism in the present invention, The position of the light source can be adjusted to change the illuminance of the light source on the object to be scanned. By using the function of the illumination adjusting device, it is possible to avoid the sensing problem caused by the saturation or lack of light received by the light sensing element during scanning, reduce the production cost, and improve the image quality of the scanning system. Without limiting the spirit and scope of the present invention, the following is an example of the application of the more common Thousands table sweeping cat .. system to introduce the background of the present invention. Those skilled in the art can use the equivalent of the present invention. The device 'introduced in the application' is used in various scanning systems to achieve the purpose and effect of equivalent illumination adjustment. Referring to the second figure, the illumination adjustment device in the present invention, when applied to a flatbed scanning system, is a “side view schematic view of a part of its structure”. The illumination adjustment device may include objects to be scanned. 20, The image capturing device 22, the light source 24, and the light source position adjustment unit 26 and the like. This paper size is applicable to China National Standard (CNS) A4 specification (210X297 male # _) II pack-(Please read the precautions on the back #. '% (?! 本 .Page),-Central Bureau of Standards, Ministry of Economy Printed by Shelley Consumer Cooperative A7 ___________ B7 V. Description of the invention () The object to be scanned 20 is the target of the image obtained in the scanning system. The object to be scanned 20 reflects the image of its surface after receiving light to provide an image or For information about the combination of pixels and other elements, the object to be scanned 20 can be a file as shown in the figure, or other objects such as photos, physical objects, etc. In general, the object to be scanned 20 can be placed in the image shown in the figure. On the transparency platform 28, the commonly used document glass or other transparent flat plate-like supporting materials can be used for the transparency platform 28. The image capture device 22 is used to sense the image of the object to be scanned 20 to generate The processed image signal may include a reflection lens group and a lens or lens group in the image capturing device 22 to image the illuminated image of the surface of the object to be scanned 20 onto the optical sensing element. In terms of applications, optical The sensing element can be used, for example, a charge-coupled device (CCD), a contact image sensing device (n; cis), or other photosensitive elements, such as a metal-oxide half-element (metai). oxide semiconductor device; MOS device), etc. The light source 24 is movably disposed on the image capture device 22 'in this example, the light source 24 is provided on the image capture device 22 through the light source position adjustment mechanism 26' As shown by the dotted lines in the figure, the adjustment links at different positions are taken as an example. The light source 24 can use an approximately long fluorescent tube light source, and cooperate with the related transformer system and control circuit to provide standby. The illumination required for the scanning area on the scanned object 20. The position adjustment mechanism 26 is set between the image capture device 22 and the light source 24, and the position adjustment mechanism 26 can be moved relative to different positions on the image capture device. The light source 24 is adjusted to the size of the paper of the object to be scanned. The Chinese standard (CNS) Λ4 specification (210X297 mm) Ί-c ^ ------ ΪΤ ------ ^ 1 (please first Read the back Note: Please fill in again {: ¾ page) Printed by the Consumer Cooperatives of the Central Standards Bureau of the Ministry of Economic Affairs 5. Description of the invention (degrees; as shown in the figure, when scanning, there are images of specific areas on the object to be scanned 20 Imaging on the image sensing element, when the position of the light source 24 is moved, the distance of the light source 24 relative to the object to be scanned 20 and the angle of the light incident on the scanning target area will be changed. The incident angle is 0 as shown in the figure, and the distance between the light source 24 and the object to be scanned 20 is d. The illuminance on the surface of the object to be scanned 20 will be proportional to cos 0 and inversely proportional to the square of the distance d. 'And the change in angle and distance can be used for the purpose of illuminance adjustment. The structure of the illuminance adjusting device 26 can be implemented in many different ways. For example, a plurality of fastening points can be set on the image capturing device 22, such as the three fastening points 22a, 22b, and 22c shown in the figure, and the position can be adjusted. The mechanism 26 has an opening 26b that can be fastened to the fastening point, so that the position adjustment mechanism 26 can be fastened at different positions to change the illuminance. There can also be more fastening points distributed at different positions. For another structure of the illuminance adjustment device 26, a set of slide grooves, such as the slide groove 22d shown in the third figure, can be provided on the image capturing device 22. For a long light source, the slide groove 22d can The pairs are arranged on the left and right sides, and the position adjustment mechanism 26 can use the protrusions 2 6 c at both ends to slide in the chute 22d to adjust the position of the light source 24 to change the illuminance. In a preferred embodiment, The chute 22d can be a slightly arc-shaped chute as shown in the figure to achieve a more precise illuminance adjustment effect. Depending on the design and the required illuminance adjustment range, a linear or other shape can be used. Chute. (When using the slide-adjustable position adjustment mechanism design, please read the note on the back ^ before filling this page in order to f)
" A7 B7 五、發明説明（ 經濟部中央標準局貝工消费合作社印製 於調整 的位置 可於影 裝置， 因 感測元 成後， 變異值 的方式 最佳值 的敏度 待掃描 而受到 可彈性 件公差 來降低 需的額 場上的 本 者，在 飾，其 領域而 至良好的照度值時有良好的固定性，避免光源24 於出廠後受到其他外力的因素而產生位移或歪斜， 像擷取裝置22上加入如緊定螺絲或插銷等的定位 以固定光源24於影像擷取裝置22上之位置。 此，藉由本發明中之照度調整裝置，即可於影像 件、光源、及光源之相關電源及控制電路設置完 針對光源的亮度誤差、们象感測元件的感應能力 、以及相關電路的誤差，利用實際掃描訊號測試 ,並透過位置調整機構26的調整，將照度值調整至 ’來補償各個元件的誤差量，修正系統在對於照度 程度上因元件組合所產生的變異，避免系統對於 物的掃描效果因影像亮度的過度飽和或極度不足 影響，而維持影像品質的穩定性，並且藉由照度 調整的特性，可使掃描系統在製造時對於各種元 的容忍度可因而增加，進一步由元件運用的彈性 取得元件的成本，同時消除傳統元件配合方式所 外人力與時間成本，增進產品的穩定性及其在市 競爭能力。 發明以較佳實施例說明如上，而熟悉此領域技藝 不脫離本發明之精神範圍内，當可作些許更動網 專利保護範圍更當視後附之申請專利範圍及其等同 定。 (請先閱讀背面之注意事項#-%;?本筲) 本紙張尺度適用中國國家標準（CNS } A4規格（210X297公瘦" A7 B7 V. Description of the invention (printed at the adjusted position can be used in the shadow device by the Central Bureau of Standardization of the Ministry of Economic Affairs of the Shellfish Consumer Cooperative, due to the sensitivity of the optimal value of the method of variation after the sensing element has been scanned. The elastic element tolerance can be used to reduce the person on the required amount of field. It has a good fixation in the decoration and its field to a good illuminance value, to avoid the light source 24 from being displaced or distorted by other external forces after leaving the factory. Positions such as set screws or bolts are added to the image capturing device 22 to fix the position of the light source 24 on the image capturing device 22. Therefore, the illuminance adjusting device in the present invention can be used for image parts, light sources, and The relevant power source and control circuit of the light source are set to adjust the illuminance value to the brightness error of the light source, the sensing capability of the image sensing element, and the error of the related circuit by using the actual scanning signal test and adjusting by the position adjustment mechanism 26. 'To compensate the error amount of each component, correct the variation of the system due to the combination of components in the degree of illumination, and avoid the system's The scanning effect is affected by the oversaturation or extreme lack of image brightness, which maintains the stability of the image quality. With the characteristics of illumination adjustment, the tolerance of the scanning system to various elements can be increased during manufacture, and further used by components. The flexibility of obtaining the cost of components, while eliminating the labor and time costs of traditional component matching methods, improving the stability of the product and its ability to compete in the market. The invention is described above with reference to the preferred embodiment, and the technology familiar with this field will not depart from the present invention. Within the spirit of the scope, you can make some changes to the scope of the patent protection scope of the network and attach the scope of the patent application and its equivalent. (Please read the precautions on the back #-% ;? This book) This paper standard applies to China Standard (CNS) A4 size (210X297 male thin