561777 8404twf.doc/006 A7 B7 五、發明說明（/ ) 本發明是有關於一種可調式光學透鏡組固定方法及 其結構，且特別是有關於一種應用於光學掃描器之光學透 鏡組的可調式光學透鏡固定方法及其結構。 (請先閱讀背面之注意事項再填寫本頁) 隨著軟硬體的進步，掃描器已成爲許多電腦使用者 的基本配備之一，它可以將文件、雜誌、書籍、圖片等之 文字或圖像資料，掃描輸入電腦並加以處理。在各種掃描 器中，平台式掃描器是最常用的一種，在平台式掃描器中， 掃描模組是以可以來回拉動的方式安裝於一透明平台下 方，以掃描置於透明平台上的文件。又掃描模組本身不具 動力，因此需要例如像伺服馬達、齒輪、皮帶等傳動機構 來帶動。又欲使用一平台式掃描器來掃描一文件時，必須 將文件置放於透明平台上，再將文件蓋板蓋上，以壓迫文 件平貼於透明平台，然後進行掃描。 經濟部智慧財產局員工消費合作社印製 習知光學掃描器之掃描模組（參照第1圖），於其 外殻700中具有一光源100、一反射鏡組400、一光學鏡 頭500、以及一光學感測器，比如是電荷耦合元件 (CCD)600。進行掃描時，光源100係照射文稿200，經過 反射或透射得到一影像光。反射鏡組400係由多個反射鏡 片（401、402、403)所組合，並配置於影像光的光路上，其 係可以將置於透光板300上之文稿200影像導入反射鏡組 4〇〇中，經過反射鏡組400的反射再傳送至光學鏡頭500。 光學鏡頭500係可以接收反射鏡組400所傳送之文稿200 的影像光並成像於電荷耦合元件600。 其中，習知之光學鏡頭500，如第2圖所示，是將 3 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） 經濟部智慧財產局員工消費合作社印製 561777 94〇4twf.doc/006 幻 __ B7 五、發明說明（之） 由多片光學透鏡（511、512、513)組成之光學透鏡組510， 固定於一圓形的光學透鏡套筒520中所組成，並調校好各 光學透鏡間之相對位置與焦距，以成單一鏡頭形式之光學 鏡頭500。之後，再利用軸孔配合的方式，直接將光學鏡 頭500置於外殼700上一圓形之鏡頭套筒710內，待調校 好焦距後，再予以點膠或是以螺絲固定之方式增加其固定 力。 由上述可知，習知光學鏡頭500之組裝固定方式， 於多片光學透鏡（511、512、513)組裝於圓形的光學透 鏡套筒520內時，必須先進行一次個別光學透鏡之調校； 又於光學鏡頭500組裝至鏡頭套筒710內時，必須進行另 一次整個光學透鏡組之焦距的調校。如此需要多次的組裝 與調校與程序，造成工時與成本之增加。 因此，本發明的目的在於提出一種可調式光學透鏡 組固定結構，應用於一光學掃描器之掃描模組內的光學透 鏡組，於射出成形時直接於掃描模組之外殼上，形成數個 用於置放固定光學透鏡之溝槽，以得以直接將光學透鏡組 直接固定於掃描模組之外殻上，一方面可視需求而調整變 更透鏡之種類與數量，另一方面可減少零件數及節省光學 透鏡調校之工時。 依照本發明的上述目的，本發明提出一種可調式光 學透鏡固定方法，應用於一光學掃描模組中，用以固定一 光學透鏡組。此光學掃描模組至少包括一主體外殻、一光 源、一反射鏡組以及一光學感測器。其中，光源、反射鏡 4 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） --------訂--------線 (請先閱讀背面之注意事項再填寫本頁) 561777 A7 8404twf . doc/006 五、發明說明（^ ) 組及光學感測器皆配置位於主體外殻內，光源用以照射一 (請先閱讀背面之注意事項再填寫本頁) 文稿並獲得一影像光，反射鏡組配置於此影像光的光路徑 中，使影像光投射至光感測器。而前述光學透鏡組具有至 少一光學透鏡。本發明之可調式光學透鏡固定方法包括： 於主體外殼內形成一光學透鏡座，此光學透鏡座具 有至少一溝槽，適於配置固定前述光學透鏡組之光學透 鏡，使其位於光感測器與反射鏡組之間、影像光的光路徑 上，以接收影像光並成像於光學感測器。 其中，光學透鏡座爲以一體成形之方式形成於主體 外殻內。且此方法更包括提供一固定蓋，固定於光學透鏡 座上，使光學透鏡組夾持固定於光學透鏡座與固定蓋之 間。又固定蓋固定於光學透鏡座上之方式，包括以卡勾固 定之方式以及利用螺絲鎖固之方式。 又，本發明提出一種可調式光學透鏡固定結構，應 用於一光學掃描模組中，用以固定一光學透鏡組。此光學 掃描模組至少包括一主體外殻、一光源、一反射鏡組以及 一光學感測器。其中，光源、反射鏡組及光學感測器皆配 置位於主體外殼內。 經濟部智慧財產局員工消費合作社印製 前述之光源用以照射一文稿並獲得一影像光，反射 鏡組則配置於此影像光的光路徑中，使影像光投射至光感 測器。而前述之光學透鏡組具有至少一光學透鏡。 本發明之可調式光學透鏡固定結構係包括一光學透 鏡座，位於前述主體外殻內且與主體外殻爲一體成形，此 光學透鏡座呈一凹槽狀，此凹槽之兩端爲貫穿開口，且凹 5 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） 經濟部智慧財產局員工消費合作社印製 561777 8404twf . doc/ 006 pj _ B7 五、發明說明（4 ) 槽之內側壁上具有至少一溝槽，適於配置固定光學透鏡組 之光學透鏡，使光學透鏡組位於光感測器與反射鏡組之 間、影像光的光路徑上，以接收影像光並成像於光學感測 器。 又，本發明提出一種可調式光學掃描模組，包括： 一主體外殼、一光源、一光學感測器、一反射鏡組、一光 學透鏡組、以及一光學透鏡座。其中，光源配置於主體外 殻內，用以照射一文稿並獲得一影像光。光學感測器，亦 配置於主體外殼內，用於接受此影像光以產生影像。反射 鏡組也配置於主體外殻內，且位於影像光的光路徑中，使 影像光投射至光感測器。光學透鏡組也配置於主體外殼 內，其具有至少一光學透鏡。光學透鏡座位於主體外殼內， 呈一凹槽狀，此凹槽之兩端爲貫穿開口，其內側壁上具有 至少一溝槽，適於配置固定光學透鏡組之光學透鏡，並使 光學透鏡組位於光感測器與反射鏡組之間、影像光的光路 徑上，以接收影像光並成像於光學感測器。 其中，光學透鏡座可於射出成形時與主體外殻一體 成形。而凹槽之形狀爲配合光學透鏡之形狀，例如爲半圓 形。又可增加一固定蓋固定於光學透鏡座上，將光學透鏡 組固定於凹槽與固定蓋之間，以加強光學透鏡組之固定 性。 依照本發明之特徵，直接於掃描模組之外殻上，形 成數個用於置放固定光學透鏡之溝槽，以直接將光學透鏡 組直接固定於掃描模組之外殻上，如此可減少零件數及節 6 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） --------^--------- (請先閱讀背面之注意事項再填寫本頁) A7 561777 8404twf . doc/006 ______B7______ 五、發明說明（f ) 省光學透鏡調校之工時。 又，依照本發明之特徵，掃描模組之外殼上所形成 用於固定光學透鏡之溝槽，使其得以可視需求而調整更換 不同種類與數量之透鏡。 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圖繪示習知光學掃描器之剖面示意圖； 第2圖繪示習知光學掃描器之光學鏡頭固定結構立 體示意圖； 第3圖繪示本發明較佳實施例光學掃描器之剖面示 意圖； 第4圖繪示本實施例光學掃描器之光學鏡頭固定結 構立體示意圖； 第5圖繪示本實施例光學掃描器之可調式光學鏡頭 固定結構組裝後之剖面示意圖； 第6圖繪示本實施例光學掃描器之可調式光學鏡頭 固定結構中，固定蓋之以螺絲鎖固立體示意圖。 圖式標號說明 100、1100 ··光源 200、1200 :文稿 300、1300 :透光板 7 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） ---------------- (請先閱讀背面之注意事項再填寫本頁) 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 561777 8404twf.doc/006 A7 B7 五、發明說明（& ) 400、 1400 :反射鏡組 401、 402、403、1401、1402、1403 :反射鏡片 500 :光學鏡頭 510、 1510 :光學透鏡組 511、 512、513、1511、1512、1513:光學透鏡 520 :光學透鏡套筒 600、1600 :光學感測器 700、1700 :外殼 710 :鏡頭套筒 1520 :固定蓋 1522 :卡勾 1524 :第一螺絲孔 1710 :光學透鏡座 1711 :凹槽 1712 :卡槽 1713 :第二螺絲孔 1800 :螺絲 較佳實施例 本發明可調式光學掃描器之掃描模組（參照第3 圖），於其外殻1700中具有一光源1100、一反射鏡組1400、 一光學透鏡組1510、以及一光學感測器，比如是電荷耦合 元件(CCD)1600。進彳了掃描時，光源1100係照射文稿1200 ’ 經過反射或透射得到一影像光。反射鏡組1400係由多個 反射鏡片（1401、1402、1403)所組合，並配置於影像光的 8 I-------I! til — — — — — · (請先閱讀背面之注意事項再填寫本頁) 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） 經濟部智慧財產局員工消費合作社印製 561777 8 4 0 4 twf . doc/〇 〇 6 A7 B7 五、發明說明（/^ ) 光路上，其係可以將置於透光板1300上之文稿1200影像 導入反射鏡組14〇〇中，經過反射鏡組1400的反射再傳送 至光學透鏡組1510。光學透鏡組1510係可以接收反射鏡 組1400所傳送之文稿1200的影像光並成像於電荷耦合元 件 1600 。 本發明之可調式光學透鏡固定方法，是以一體成形 之方式，於外殻1700上形成一光學透鏡座1710，此光學 透鏡座1710具有多條溝槽1711，每一條溝槽1711可用以 配置固定光學透鏡組1510相對應之一光學透鏡（例如爲 1511、1512、1513)。此方法更提供一固定蓋1520，固定 於光學透鏡座1710上，以更加穩固地將光學透鏡（例如 爲1511、1512、1513)夾持固定於透鏡座1710與固定蓋 1520之間。而固定蓋1520固定於光學透鏡座1710上之方 式，包括以卡勾固定之方式以及利用螺絲鎖固之方式。 接著敘述本發明之可調式光學透鏡固定結構。其 中，光學透鏡組1510具有多片光學透鏡（如第3圖中之 1511、1512、1513)。而對其之固定方式，如第4圖所示， 本發明是於外殻1700上，設計一光學透鏡座1710，此光 學透鏡座1710爲兩端開口貫穿之凹槽狀，此凹槽內具有 多條溝槽1711，每一條溝槽1711可用以配置光學透鏡組 1510相對應之一光學透鏡1511、1512、1513，再以化學 黏著之方式予以固定。如此使得光學透鏡組1510位於光 感測器1600與反射鏡組1400之間、影像光的光路徑上， 以接收此影像光並成像於光學感測器1600。又可另外再加 9 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） --------^--------- (請先閱讀背面之注意事項再填寫本頁) 777 6 A7 8404twf.doc/006 五、發明說明（S ) 一固定蓋1520固定於光學透鏡座171〇上，以將光學透鏡 組1510夾持固定於光學透鏡座171〇之凹槽與此固定蓋 1520之間，以更加確保光學透鏡組151〇可穩固地固定於 光學透鏡座1710上。其組裝後之剖面圖如第5圖所示。 而固定蓋1520固定於光學透鏡座1710上之方式， 包括以卡勾1522扣合於光學透鏡座1710上之卡槽171¾如 第4圖所示）；或是以螺絲1800經由固定蓋152〇之第一 螺絲孔1524,鎖入光學透鏡座1710之第二螺絲孔1713(如 第6圖所示）；或是點膠黏合等其他方式。 其中，光學透鏡座1710爲以一體成形之方式，於 射出成形時與主體外殻1700 —起形成。而每一條溝槽1711 間之相對位置也可於射出成形時先予以精確的形成，使得 後續光學透鏡組1510於組裝時即可達到所要求之相對位 置與間距，而不必要經過多次的調校。如此可節省許多工 時與成本，且減少零件數（如習知之光學透鏡套筒520)。 每一條溝槽1711之位置也可於模具上予以調整。 又，光學透鏡座1710之凹槽的剖面形狀，爲配合 光學透鏡之形狀，例如本實施例之光學透鏡1511、1512、 1513爲圓形，光學透鏡座1710之凹槽的剖面形狀則爲半 圓形。故光學透鏡座1710之凹槽的剖面形狀可以爲任何 形狀，以配合光學透鏡之形狀。 相同地，固定蓋1520爲配合光學透鏡1511、1512、 1513之形狀，可設計成如第3圖所示具有一半圓形剖面、 兩端爲貫穿開口之凹槽狀，以方便組裝固定。且此凹槽之 10 ----I--------- (請先閱讀背面之注意事項再填寫本頁) 經濟部智慧財產局員工消費合作社印製 本紙張尺度適用中國國家標準（CNS)A4規格mo X 297公釐） 561777 8 4 04 twf . doc/0 〇 6 A7 B7 五、發明說明（q ) 剖面形狀也是可配合光學透鏡之形狀而爲任意之形狀。 又，前述之凹槽數量與種類，並不限於如圖所示之 三個，其可視需求設計，使本發明之固定結構可以視需求 而調整更換不同種類與數量之透鏡。 依照上述本發明之實施例可知，本發明至少具有下 列優點： (1) 光學透鏡座與主體外殼爲一體成形，可減少零件數以降 低成本。 (2) 溝槽間之相對位置也可於射出成形時先予以精確的形 成，使得後續光學透鏡組於組裝時即可達到所要求之 相對位置與間距，而不需經過多次的調校，如此可節 省許多組裝工時與成本。 (3) 所形成之多個溝槽，可視需求而調整變更透鏡之種類與 數量，使此固定結構之應用範圍更加靈活。 雖然本發明已以較佳實施例揭露如上，然其並非g 以限定本發明，任何熟習此技藝者，在不脫離本發明;^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。 -----------------— ！訂· —--nlll^^wi. (請先閱讀背面之注意事項再填寫本頁} 經濟部智慧財產局員工消費合作社印製 本紙張尺度顧中國國家標準（CNS)A4規格（210 X 297公爱) '— -^------561777 8404twf.doc / 006 A7 B7 V. Description of the invention (/) The present invention relates to a method and structure for fixing an adjustable optical lens group, and in particular to an adjustable type of an optical lens group applied to an optical scanner Optical lens fixing method and structure. (Please read the precautions on the back before filling this page) With the advancement of software and hardware, the scanner has become one of the basic equipment for many computer users. It can translate text or images of documents, magazines, books, pictures, etc. Scan data into a computer and process it. Among various scanners, the platform scanner is the most commonly used one. In the platform scanner, the scanning module is installed under a transparent platform in a way that can be pulled back and forth to scan documents placed on the transparent platform. The scanning module itself has no power, so it needs to be driven by transmission mechanisms such as servo motors, gears, and belts. When you want to use a platform scanner to scan a document, you must place the document on the transparent platform, and then cover the document cover to press the document flat against the transparent platform, and then scan. The consumer cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs prints a scanning module of a conventional optical scanner (refer to FIG. 1), and has a light source 100, a mirror group 400, an optical lens 500, and a The optical sensor is, for example, a charge coupled device (CCD) 600. When scanning, the light source 100 irradiates the document 200 and obtains an image light through reflection or transmission. The mirror group 400 is a combination of a plurality of reflecting lenses (401, 402, 403) and is arranged on the optical path of the image light. It can introduce the image of the document 200 placed on the light transmitting plate 300 into the mirror group 4. 〇, the reflection through the mirror group 400 is transmitted to the optical lens 500. The optical lens 500 can receive the image light of the document 200 transmitted by the mirror group 400 and form an image on the charge-coupled device 600. Among them, the conventional optical lens 500, as shown in Figure 2, applies 3 paper sizes to the Chinese National Standard (CNS) A4 specification (210 X 297 mm). It is printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs 561777 94〇 4twf.doc / 006 Magic __ B7 V. Description of the invention (the) An optical lens group 510 composed of a plurality of optical lenses (511, 512, 513) is fixed in a circular optical lens sleeve 520, And adjust the relative position and focal length of each optical lens to form an optical lens 500 in the form of a single lens. After that, the optical lens 500 is directly placed in a circular lens sleeve 710 on the housing 700 by using the shaft hole matching method. After the focal length is adjusted, it is then dispensed or screwed to increase it. Fixing force. From the above, it is known that the assembly and fixing method of the optical lens 500 is known. When multiple optical lenses (511, 512, 513) are assembled in a circular optical lens sleeve 520, an individual optical lens must be adjusted first. When the optical lens 500 is assembled into the lens sleeve 710, another adjustment of the focal length of the entire optical lens group must be performed. This requires multiple assembly and adjustments and procedures, resulting in increased man-hours and costs. Therefore, an object of the present invention is to provide an adjustable optical lens group fixing structure, which is applied to an optical lens group in a scanning module of an optical scanner, and is directly formed on the housing of the scanning module during injection molding to form several applications. The groove for fixing the optical lens is placed so that the optical lens group can be directly fixed on the housing of the scanning module. On the one hand, the type and quantity of the lens can be adjusted and changed according to requirements, on the other hand, the number of parts and savings can be reduced. Working hours of optical lens adjustment. According to the above object of the present invention, the present invention provides a method for fixing an adjustable optical lens, which is applied to an optical scanning module to fix an optical lens group. The optical scanning module includes at least a main body housing, a light source, a mirror group and an optical sensor. Among them, light source and reflector 4 This paper size is applicable to China National Standard (CNS) A4 specification (210 X 297 mm) -------- Order -------- Line (Please read the Note: Please fill in this page again.) 561777 A7 8404twf .doc / 006 5. The description of the invention (^) and the optical sensor are all located in the main body housing. The light source is used to illuminate one (please read the precautions on the back before filling) (This page), and obtain an image light. The mirror group is arranged in the light path of the image light, so that the image light is projected to the light sensor. The aforementioned optical lens group has at least one optical lens. The method for fixing an adjustable optical lens of the present invention includes: forming an optical lens holder in a main body housing, the optical lens holder having at least one groove, which is suitable for disposing and fixing the optical lens of the optical lens group, so that the optical lens is located in a light sensor; And the mirror group on the light path of the image light to receive the image light and form an image on the optical sensor. The optical lens holder is integrally formed in the main body housing. Moreover, the method further includes providing a fixing cover fixed on the optical lens holder so that the optical lens group is clamped and fixed between the optical lens holder and the fixing cover. The method of fixing the fixing cover on the optical lens holder includes a method of fixing with a hook and a method of fixing with a screw. In addition, the present invention provides an adjustable optical lens fixing structure, which is used in an optical scanning module to fix an optical lens group. The optical scanning module includes at least a main body housing, a light source, a mirror group, and an optical sensor. Among them, the light source, the mirror group and the optical sensor are all arranged in the main body casing. Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs, the aforementioned light source is used to irradiate a document and obtain an image light, and the mirror group is arranged in the light path of the image light, so that the image light is projected to the light sensor. The aforementioned optical lens group has at least one optical lens. The adjustable optical lens fixing structure of the present invention includes an optical lens holder, which is located in the main body housing and is integrally formed with the main body housing. The optical lens holder has a groove shape, and two ends of the groove are through openings. , And concave 5 This paper size applies Chinese National Standard (CNS) A4 (210 X 297 mm) Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 561777 8404twf .doc / 006 pj _ B7 V. Description of the invention (4) Slot There is at least one groove on the inner side wall, which is suitable for disposing the optical lens of the fixed optical lens group, so that the optical lens group is located between the light sensor and the reflecting mirror group on the light path of the image light to receive the image light and form an image For optical sensors. In addition, the present invention provides an adjustable optical scanning module including: a main body housing, a light source, an optical sensor, a reflecting mirror group, an optical lens group, and an optical lens holder. Wherein, the light source is arranged in the main body shell to irradiate a document and obtain an image light. The optical sensor is also arranged in the main body casing, and is used for receiving the image light to generate an image. The mirror group is also disposed in the main body casing and is located in the light path of the image light, so that the image light is projected to the light sensor. The optical lens group is also disposed in the main body housing and has at least one optical lens. The optical lens holder is located in the housing of the main body and has a groove shape. Both ends of the groove are through openings. The inner side wall has at least one groove, which is suitable for disposing the optical lens for fixing the optical lens group. It is located between the light sensor and the mirror group on the light path of the image light to receive the image light and form an image on the optical sensor. Among them, the optical lens holder can be integrally formed with the main body housing during the injection molding. The shape of the groove is a shape that matches the shape of the optical lens, for example, a semicircular shape. In addition, a fixed cover can be added to fix the optical lens holder, and the optical lens group can be fixed between the groove and the fixed cover, so as to strengthen the fixation of the optical lens group. According to the features of the present invention, a plurality of grooves for fixing the optical lens are formed directly on the housing of the scanning module, so as to directly fix the optical lens group on the housing of the scanning module. Number of parts and section 6 This paper size is applicable to China National Standard (CNS) A4 (210 X 297 mm) -------- ^ --------- (Please read the precautions on the back first (Fill in this page again) A7 561777 8404twf .doc / 006 ______B7______ V. Description of the invention (f) Save the man-hours of optical lens adjustment. In addition, according to the features of the present invention, grooves for fixing optical lenses are formed on the housing of the scanning module, so that different types and quantities of lenses can be adjusted and replaced according to requirements. In order to make the above and other objects, features, and advantages of the present invention more comprehensible, a preferred embodiment is given below in conjunction with the accompanying drawings to make a detailed description as follows: Brief description of the drawings FIG. 1 Fig. 2 is a schematic cross-sectional view of a conventional optical scanner; Fig. 2 is a three-dimensional schematic view of a fixed structure of an optical lens of a conventional optical scanner; Fig. 3 is a schematic cross-sectional view of an optical scanner according to a preferred embodiment of the present invention; FIG. 5 is a perspective view of the optical lens fixing structure of the optical scanner of the present embodiment; FIG. 5 is a schematic cross-sectional view of the adjustable optical lens fixing structure of the optical scanner of the present embodiment after assembly; FIG. 6 is an optical scanner of the present embodiment. In the adjustable optical lens fixing structure, the three-dimensional schematic diagram of the fixing cover is screw-locked. Explanation of drawing symbols 100, 1100 ·· Light source 200, 1200: Manuscript 300, 1300: Translucent plate 7 This paper size applies to China National Standard (CNS) A4 specification (210 X 297 mm) -------- -------- (Please read the notes on the back before filling out this page) Printed by the Employees 'Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs Printed by the Employees' Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs Printed by 561777 8404twf.doc / 006 A7 B7 5 &Amp; Invention 400 & 1400: Mirror group 401, 402, 403, 1401, 1402, 1403: Reflective lens 500: Optical lens 510, 1510: Optical lens group 511, 512, 513, 1511, 1512, 1513 : Optical lens 520: Optical lens sleeve 600, 1600: Optical sensor 700, 1700: Housing 710: Lens sleeve 1520: Fixed cover 1522: Hook 1524: First screw hole 1710: Optical lens holder 1711: Groove 1712: card slot 1713: second screw hole 1800: preferred embodiment of the screw The scanning module of the adjustable optical scanner of the present invention (refer to FIG. 3) has a light source 1100 and a mirror group in its housing 1700 1400, an optical lens group 1510, and an optical sensor, such as A charge coupled device (CCD) 1600. When scanning is performed, the light source 1100 illuminates the document 1200 ′ and reflects or transmits an image light. Mirror group 1400 is a combination of multiple reflecting lenses (1401, 1402, 1403) and is arranged on the 8 I ------- I! Til — — — — — · (Please read the Note: Please fill in this page again.) This paper size is in accordance with Chinese National Standard (CNS) A4 (210 X 297 mm). Printed by the Employees' Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs. 561777 8 4 0 4 twf .doc / 〇〇6 A7 B7 5. Description of the invention (/ ^) On the optical path, the image of the document 1200 placed on the light-transmitting plate 1300 can be introduced into the mirror group 1400, and then reflected by the mirror group 1400 and then transmitted to the optical lens group 1510. The optical lens group 1510 can receive the image light of the document 1200 transmitted by the mirror group 1400 and form an image on the charge-coupled element 1600. In the method for fixing an adjustable optical lens of the present invention, an optical lens holder 1710 is formed on the housing 1700 in an integrated manner. The optical lens holder 1710 has a plurality of grooves 1711, and each groove 1711 can be used for configuration and fixing. The optical lens group 1510 corresponds to one optical lens (for example, 1511, 1512, and 1513). This method further provides a fixing cover 1520, which is fixed on the optical lens holder 1710, so as to more firmly clamp and fix the optical lens (for example, 1511, 1512, 1513) between the lens holder 1710 and the fixing cover 1520. The method for fixing the fixing cover 1520 to the optical lens holder 1710 includes a method of fixing with a hook and a method of fixing with a screw. Next, the adjustable optical lens fixing structure of the present invention will be described. Among them, the optical lens group 1510 has a plurality of optical lenses (such as 1511, 1512, and 1513 in FIG. 3). As for the fixing method, as shown in FIG. 4, the present invention designs an optical lens holder 1710 on the housing 1700. The optical lens holder 1710 is in the shape of a groove opened at both ends, and the groove is provided with There are a plurality of grooves 1711, and each groove 1711 can be used to configure an optical lens 1511, 1512, 1513 corresponding to the optical lens group 1510, and then fixed by chemical adhesion. In this way, the optical lens group 1510 is located between the light sensor 1600 and the reflector group 1400 on the light path of the image light to receive the image light and form an image on the optical sensor 1600. An additional 9 paper sizes are applicable to the Chinese National Standard (CNS) A4 (210 X 297 mm) -------- ^ --------- (Please read the note on the back first Please fill in this page again for details) 777 6 A7 8404twf.doc / 006 V. Description of the invention (S) A fixing cover 1520 is fixed on the optical lens holder 1710 to clamp and fix the optical lens group 1510 on the optical lens holder 171〇 Between the groove and the fixing cover 1520, to further ensure that the optical lens group 1510 can be stably fixed on the optical lens holder 1710. The sectional view after assembly is shown in FIG. 5. The method of fixing the fixing cover 1520 to the optical lens holder 1710 includes a hook groove 1522 that is fastened to the optical lens holder 1710 (as shown in FIG. 4); or a screw 1800 through the fixing cover 1520. The first screw hole 1524 is locked into the second screw hole 1713 of the optical lens holder 1710 (as shown in FIG. 6); or other methods such as glue bonding. The optical lens holder 1710 is formed integrally with the main body housing 1700 during injection molding. The relative position between each groove 1711 can also be accurately formed during injection molding, so that the subsequent optical lens group 1510 can achieve the required relative position and spacing during assembly, without having to undergo multiple adjustments. school. This can save many man-hours and costs, and reduce the number of parts (such as the conventional optical lens tube 520). The position of each groove 1711 can also be adjusted on the mold. The cross-sectional shape of the groove of the optical lens holder 1710 matches the shape of the optical lens. For example, the optical lenses 1511, 1512, and 1513 of this embodiment are circular, and the cross-sectional shape of the groove of the optical lens holder 1710 is semicircular. shape. Therefore, the cross-sectional shape of the groove of the optical lens holder 1710 can be any shape to match the shape of the optical lens. Similarly, the fixing cover 1520 is matched with the shape of the optical lenses 1511, 1512, and 1513, and can be designed to have a semi-circular cross-section as shown in FIG. And 10 of this groove ---- I --------- (Please read the precautions on the back before filling this page) Printed on paper standards of the Ministry of Economic Affairs and Intellectual Property Bureau's Consumer Cooperatives, this paper applies Chinese national standards (CNS) A4 size mo X 297 mm) 561777 8 4 04 twf .doc / 0 〇6 A7 B7 V. Description of the invention (q) The cross-sectional shape can be any shape according to the shape of the optical lens. In addition, the foregoing number and type of grooves are not limited to the three shown in the figure, and can be designed according to requirements, so that the fixing structure of the present invention can be adjusted and replaced with lenses of different types and numbers according to requirements. According to the above embodiments of the present invention, it can be known that the present invention has at least the following advantages: (1) The optical lens holder and the main body casing are integrally formed, which can reduce the number of parts and reduce the cost. (2) The relative position between the grooves can also be accurately formed during injection molding, so that subsequent optical lens groups can achieve the required relative position and spacing during assembly, without having to undergo multiple adjustments. This can save many assembly man-hours and costs. (3) The multiple grooves formed can be adjusted and changed according to the needs of the type and number of lenses, making the application of this fixed structure more flexible. Although the present invention has been disclosed as above with a preferred embodiment, it is not a g to limit the present invention. Anyone skilled in this art will not depart from the present invention; within the spirit and scope, there can be some changes and decorations, so this The scope of protection of the invention shall be determined by the scope of the attached patent application. -------------------! Order · —-- nlll ^^ wi. (Please read the precautions on the back before filling out this page} Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs This paper is printed in accordance with China National Standard (CNS) A4 (210 X 297) Love) '--^ ------