TW201108123A - Laser barcode scanner and its scanning mechanism - Google Patents
Laser barcode scanner and its scanning mechanism Download PDFInfo
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- TW201108123A TW201108123A TW98128198A TW98128198A TW201108123A TW 201108123 A TW201108123 A TW 201108123A TW 98128198 A TW98128198 A TW 98128198A TW 98128198 A TW98128198 A TW 98128198A TW 201108123 A TW201108123 A TW 201108123A
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201108123 六、發明說明： 【發明所屬之技術領域】 本發明係關於一種條碼掃描裝置之設計，特別是關於 一種雷射條碼掃描裝置及其掃描機構。 【先前技術】 查條碼掃描裝置目前已廣泛應用在各種領域中。例如 在百貨公司、超級市場、商品賣場、物料管理…等場合中皆 • 已普遍採用條碼掃描裝置作為電子輔助設備，藉由該條碼掃 描裝置之輔助，使工作人員可以迅速且有效率地讀取各項產 品之價格及其它產品資訊，再配合電腦的運算處理，而可達 到節省人力、提昇工作效率、自動化管理之需求。 在已知的條碼掃描技術中有各種不同之類型，例如在 中華民國新型專利公告號第422375中揭露了 一種雷射條碼 閱讀器之光學裝置，其包括有一雷射光源、一曲面反射鏡、 一稜鏡，其中該曲面反射鏡係設於該雷射光源之前以一帶動 • 裝置帶動其振動，藉該稜鏡折射該雷射光束使其當該曲面反 射鏡振動時同時帶動稜鏡而改變雷射光束之行進方向形成 一段直線光點進行動態掃描一條碼，掃描該條碼之反射光束 經該曲面反射鏡收集射向一光感應器感應該條碼影像。 由於技術的演進’使得條碼掃描之技術由早期单純的 掃描光線閱讀方式漸漸演進至全方位之條碼掃描技術。習知 的全方位條碼掃描裝置主要是在基座殼體之一側端配置一 雷射二極體，該雷射二極體所發出之雷射光經由複數片反射 201108123 鏡片反射後投射至一多面反射鏡，該多面反射鏡連結有一馬 達，而可在該馬達之驅動之下而旋轉。故該雷射光在投射向 該多面反射鏡時，會在不同時間投射至該多面反射鏡之其中 一個鏡面，再由該多面反射鏡之其中一個鏡面以不同之投射 角度而反射至環鄰於該多面反射鏡之一環列反射鏡組之其 中一個反射鏡片，由該環列反射鏡組之反射鏡片之反射而投 射出一掃描雷射光至一標的條碼，如此即可產生掃描雷射光 至一標的條碼，而進行全方位之條碼掃描功能。 【發明内容】 本發明所欲解決之技術問題 然而，習知條碼掃描裝置在光學效果方面，因其作動 原理係由反射鏡的角度變化改變掃描光束之掃描動線而構 成一直線之掃描線，是從角度變化轉為直線變化。故掃描光 束位在掃描線兩端的運動速度會比在掃描線中央的運動速 度為快，造成掃描時的速度不穩定，難以精確判讀條碼。而 全方位條碼掃描裝置雖具有較佳之條碼閱讀效果，且較不會 受到雷射光投射角度與標的條碼間之限制，但是多面反射鏡 在馬達驅動之下而旋轉，以不同鏡面不同角度反射雷射光 時，因雷射光在鏡面上反射點的位置皆不相同，造成掃描時 在斜邊的變形量大，難以精確判讀條碼，需要後續以軟體作 校正才能克服。 緣此，本發明之目的即是提供一種雷射條碼掃描裝置 及其掃描機構’其結構之設計使掃描時之掃描線具有極佳的 201108123 線性度，以精確判讀條碼。 本發明解決問題之技術手段 -插解決習知技術之問題所採用之技術手段俾為 種雷射條碼掃料置，包括—基座殼體、 為 置、一投狀光複合鏡、—旋轉反射鏡…餘^ 接收裝置。 先201108123 VI. Description of the Invention: [Technical Field] The present invention relates to the design of a bar code scanning device, and more particularly to a laser bar code scanning device and a scanning mechanism thereof. [Prior Art] Bar code scanning devices have been widely used in various fields. For example, in department stores, supermarkets, merchandise stores, material management, etc. • Barcode scanning devices have been widely used as electronic aids, and with the aid of the bar code scanning device, staff can read quickly and efficiently. The price of each product and other product information, together with the computer's computing processing, can achieve the need to save manpower, improve work efficiency, and automate management. There are various types of known bar code scanning techniques. For example, in the Republic of China, New Patent Publication No. 422375, an optical device for a laser bar code reader is disclosed, which includes a laser light source, a curved mirror, and a稜鏡, wherein the curved mirror is disposed in front of the laser light source to drive the vibration by the device, and the laser beam is used to refract the laser beam to change the lightning while the curved mirror is vibrating. The traveling direction of the beam forms a straight line of light to dynamically scan a code, and the reflected beam that scans the barcode is collected by the curved mirror and is incident on a light sensor to sense the barcode image. Due to the evolution of technology, the technology of bar code scanning has gradually evolved from an early simple scanning light reading method to a comprehensive bar code scanning technology. The conventional omni-directional bar code scanning device mainly comprises a laser diode disposed at one side of the base housing, and the laser light emitted by the laser diode is reflected by a plurality of reflections 201108123 and projected to a plurality of A face mirror coupled to a motor and rotatable under the driving of the motor. Therefore, when the laser light is projected onto the polygon mirror, it is projected to one of the mirrors of the polygon mirror at different times, and then one of the mirror faces of the polygon mirror is reflected at a different projection angle to the ring. One of the reflective mirrors of one of the polygon mirrors, the reflection of the reflective mirror of the loop mirror group projects a scanning laser light to a target barcode, thereby generating a scanning laser light to a target barcode And carry out a full range of barcode scanning functions. SUMMARY OF THE INVENTION The technical problem to be solved by the present invention is that, in the optical effect, the conventional bar code scanning device is configured to change the scanning moving line of the scanning beam by the angle change of the mirror to form a scanning line of a straight line. Change from angle change to straight line change. Therefore, the scanning beam position moves faster at both ends of the scanning line than at the center of the scanning line, causing the scanning speed to be unstable, and it is difficult to accurately interpret the barcode. The omni-directional bar code scanning device has better barcode reading effect and is less restricted by the projection angle between the laser light and the target bar code, but the polygon mirror rotates under the motor drive to reflect the laser light at different angles of different mirrors. When the position of the reflection point of the laser light on the mirror surface is different, the amount of deformation on the oblique side during scanning is large, and it is difficult to accurately interpret the barcode, which needs to be corrected by software. Accordingly, it is an object of the present invention to provide a laser bar code scanning device and a scanning mechanism thereof which are designed such that the scanning line during scanning has an excellent linearity of 201108123 for accurate interpretation of the bar code. The technical means for solving the problem of the invention - the technical means adopted for solving the problem of the conventional technology, is a laser bar code sweeping device, including - a base shell, a set, a cast light composite mirror, - a rotating reflection Mirror... rest ^ receiving device. first
光源產生裝置設置在基座殼體，用以產生一光束，、 以一預定之光束投射路徑投射出。投光收光複合鏡設置在= 束投射路徑，光源產生裝置所產生之光束投射至投光收光複 合鏡後，以一投光路徑反射出。 旋轉反射鏡與反射鏡組構成雷射條碼掃描裝置之掃描 機構’其中旋轉反射鏡設置在投光收光複合鏡之投光路徑， 包括一基體’基體之頂面以一傾斜角度形成有一反射鏡面， 並受一驅動裝置依一預定之旋轉軸向驅動旋轉，投光收光複 合鏡所反射之光束向基體之頂面入射後，由旋轉反射鏡藉旋 轉將入射之光束呈幅射狀反射出。反射鏡組係由複數片具有 一預定傾斜角度之反射鏡片以旋轉反射鏡為等光程交點位 置，作為幾何中心配置而成，旋轉反射鏡所反射之光束掃過 反射鏡組之各反射鏡片，再由環列反射鏡組之各反射鏡片反 射出掃描光束，掃描光束之掃描動線係構成一掃描圖案進行 掃描。 光接收裝置設置在基座殼體且位在投光收光複合鏡之 收光路徑’掃描後之回授光束經由反射鏡組及旋轉反射鏡之 201108123 反射後由投光收光複合鏡聚焦反射至光接收骏置。 在本發明之較佳實施例中，光源產生裝置所產生之光 束為雷射光束。投光收紐合鏡為—曲面鏡教在㈠央部位 鏡’且旋轉反射鏡受驅動旋轉時，依投光 光路經為旋轉軸向。在反射鏡组的結構方 片間呈J衣列配置且相互緊鄰。 本發明對照先前技術之功效 經由本發明所採用之技術手段，由於 射鏡片以_反射鏡為等絲交點位置，作幾=之各反 而成。旋轉反射鏡在受㈣而旋轉時，2=中心配置 射’反射光束等光程地以旋轉反射鏡為向= 出，掃過反射鏡Μ之各反射則。 巾讀狀反射 轉所產生之誤差，對應各^的位置不存在因旋 束之掃插動線所構成 、：光程亦相同，故掃描光 碼。且各度佳，可精確判讀條 本發明所採用的且體〜，度位置之條碼。 附呈圖式作進—步之說明…’將藉由以下之實施例及The light source generating means is disposed on the base housing for generating a light beam which is projected by a predetermined beam projection path. The light-emitting and collecting mirror is disposed on the beam projection path, and the light beam generated by the light source generating device is projected to the light-emitting and collecting mirror, and is reflected by a light projecting path. The rotating mirror and the mirror group constitute a scanning mechanism of the laser bar code scanning device. The rotating mirror is disposed on the light projecting path of the light-emitting and light-receiving composite mirror, and comprises a base body. The top surface of the base body is formed with a mirror surface at an oblique angle. And being driven by a driving device according to a predetermined rotation axis, and the light beam reflected by the light-emitting and collecting mirror is incident on the top surface of the substrate, and the rotating beam is reflected by the rotating mirror. . The mirror group is composed of a plurality of reflecting mirrors having a predetermined inclination angle, and the rotating mirrors are arranged at the intersection of the optical paths, and are arranged as geometric centers. The reflected beams of the rotating mirrors sweep through the reflecting mirrors of the mirror group. Then, the scanning beams are reflected by the reflecting mirrors of the ring mirror group, and the scanning moving lines of the scanning beam form a scanning pattern for scanning. The light-receiving device is disposed in the base housing and is positioned behind the light-receiving path of the light-receiving and collecting mirror. The scanned light beam is reflected by the mirror group and the rotating mirror 201108123, and then reflected and reflected by the light-emitting and collecting mirror. To the light receiving Jun. In a preferred embodiment of the invention, the beam produced by the light source generating means is a laser beam. The light-receiving and closing mirror is a curved mirror that teaches (in the central part of the mirror) and the rotating mirror is driven to rotate, according to the optical path of the projecting light. Between the structural panels of the mirror group, they are arranged in a J-column arrangement and are adjacent to each other. The present invention compares the effects of the prior art. According to the technical means adopted by the present invention, since the lens is in the position of the intersection of the mirrors, the inverse of each of the mirrors is made. When the rotating mirror is rotated by (4), 2 = the center is arranged to reflect the optical path such as the reflected beam, and the rotating mirror is used as the direction of the rotating mirror, and the reflection of each of the mirrors is swept. The error caused by the reading of the towel is reflected by the sweeping line corresponding to the rotation of each of the positions of the wiper, and the optical path is also the same, so the optical code is scanned. And each degree is good, and the bar code of the body ~, degree position used in the invention can be accurately interpreted. Attachment of the drawing - the description of the step ... will be by the following examples and
f實施方式J 參間苐1圖及第2圖所 例之立體岐树Ί知本糾較佳實施 4例之上視圖。本發明較佳實施 201108123 例之雷射條碼掃描裝置100包括一基座殼體1、一光源產生 裝置2、一投光收光複合鏡3、一旋轉反射鏡4、一反射鏡 組5及一光接收裝置6。 基座殼體1由一底座11及一透明防塵罩12對合而成， 其内部設置有光源產生裝置2、投光收光複合鏡3、旋轉反 射鏡4、反射鏡組5及光接收裝置6。 光源產生裝置2設置在基座殼體1的側邊，用以產生 光束，其所產生之光束可為雷射光束。 投光收光複合鏡3鎖固於基座殼體1之透明防塵罩12 底部，投光收光複合鏡3為一曲面鏡31，並在其中央部位 具有一中心平面鏡32，投光收光複合鏡3投光時係經由中 心平面鏡32反射，收光時則由曲面鏡31聚焦反射。 旋轉反射鏡4設置在基座殼體1之底座11之底部，其 包括一基體41，基體41之頂面以一傾斜角度形成有一反射 鏡面42，且基體41之底部連接有一驅動裝置40。 反射鏡組5設置在基座殼體1中，係由複數片具有一 預定傾斜角度之反射鏡片5a、5b(在圖式中僅針對後續說明 書中會提及之元件進行標號）以一等光程交點位置為幾何中 心配置，即以旋轉反射鏡4為等光程交點位置，作為幾何中 心配置而成，與旋轉反射鏡4作為雷射條碼掃描裝置100 中用於改變光束路徑以進行掃描之掃描機構。在本實施例 中，反射鏡組5之各個反射鏡片5a、5b之間係相互緊鄰配 置，且包括有至少三片以上之反射鏡片5a、5b(圖式中為28 片之反射鏡片），各個反射鏡片5a、5b間係呈環列配置。 201108123 光接收裝置6設置在基座殼體1的側邊，其對應投光 收光複合鏡3，且鄰近光源產生裝置2，以便於投光收光複 合鏡3之光程路徑設計，用以接收掃描後之回授光束。 參閱第3圖及第4圖所示，在進行掃描時，由光源產 生裝置2產生一光束B，並以一預定之光束投射路徑R23 向投光收光複合鏡3投射出。f Embodiment J is a top view of the four examples of the three-dimensional eucalyptus tree. The laser bar code scanning device 100 of the preferred embodiment of the present invention includes a base housing 1, a light source generating device 2, a light-emitting and light-receiving composite mirror 3, a rotating mirror 4, a mirror group 5 and a Light receiving device 6. The base housing 1 is formed by a base 11 and a transparent dust cover 12, and is provided with a light source generating device 2, a light-emitting and light-receiving composite mirror 3, a rotating mirror 4, a mirror group 5, and a light receiving device. 6. The light source generating means 2 is disposed on the side of the base housing 1 for generating a light beam which is a laser beam. The light-receiving light-receiving composite mirror 3 is locked on the bottom of the transparent dust cover 12 of the base housing 1, and the light-receiving light-receiving composite mirror 3 is a curved mirror 31, and has a central plane mirror 32 at the central portion thereof, and the light is collected and collected. When the composite mirror 3 projects light, it is reflected by the center plane mirror 32, and when it is received, it is focused and reflected by the curved mirror 31. The rotating mirror 4 is disposed at the bottom of the base 11 of the base housing 1, and includes a base 41. The top surface of the base 41 is formed with a reflecting surface 42 at an oblique angle, and a driving device 40 is connected to the bottom of the base 41. The mirror group 5 is disposed in the base housing 1 by a plurality of reflecting mirrors 5a, 5b having a predetermined inclination angle (in the drawings, only the components mentioned in the subsequent description are labeled) The intersection position is a geometric center configuration, that is, the rotating mirror 4 is at the position of the equal optical path intersection, and is configured as a geometric center, and the rotating mirror 4 is used as a laser bar code scanning device 100 for changing the beam path for scanning. Scanning mechanism. In this embodiment, each of the reflecting mirrors 5a, 5b of the mirror group 5 is disposed in close proximity to each other, and includes at least three or more reflecting mirrors 5a, 5b (in the figure, 28 reflecting mirrors), each of which The reflective lenses 5a and 5b are arranged in a ring array. The light receiving device 6 is disposed on the side of the base housing 1 and corresponds to the light-emitting and collecting mirror 3, and is adjacent to the light source generating device 2, so as to facilitate the optical path design of the light-emitting and collecting mirror 3 for Receiving the scanned beam after scanning. Referring to Figs. 3 and 4, when scanning is performed, a light beam B is generated by the light source generating means 2, and is projected to the light projecting/recombining mirror 3 by a predetermined beam projecting path R23.
投光收光複合鏡3設置在該光束投射路徑R23，光源 產生裝置2所產生之光束B投射至投光收光複合鏡3後， 由投光收光複合鏡3之中心平面鏡32反射，以—投光路徑 R34向旋轉反射鏡4反射出。 旋轉反射鏡4設置在投光收光複合鏡3 1衩元路沿 R34,投光收光複合鏡3所反射之光束B向旋轉反射鏡4戈 基體41之頂面入射至反射鏡面“，基體Μ受驅動裝置4 依預定+之旋轉細向驅動，而以一旋轉方向I旋轉。旋轉石 射鏡4藉旋轉將人射之光束B呈幅射狀反射出，掃過反肩 見、且5之各反射鏡片5&、外。在本發明之較佳實施例中 糸以技―光收域合鏡3之投光路徑KM為旋轉轴向。 旋轉反射鏡4將人射之光束8反射至反射鏡組5之j 播鏡片5&’再由反射鏡組5之反射鏡片5a反射出_ 而變化掃描光束81的位置會隨旋轉反射鏡4之旋車 而變化，在反射籍y < ,, 掃描光束W 原掃描光束B1的位置移動^ u，以：2 掃描光束之掃描動線構成-侧 =卜飾描條碼(圖未*)進行掃描。 圖掃描條碼後反射回來之回授光束B〇，先 201108123 後經由反射鏡組5及旋轉反射鏡4之反射，投射至投光收光 複合鏡3。光·裝置6位在投光收光複合鏡3 <收光路徑 R36 ’回授光束BG由投光收錢合鏡3之曲面鏡31聚焦反 射經收光路徑R36至光接收裝置6。 …、The light projecting/collecting mirror 3 is disposed in the beam projecting path R23, and the light beam B generated by the light source generating device 2 is projected to the light projecting/collaring mirror 3, and then reflected by the center plane mirror 32 of the light projecting/collecting mirror 3 to The light projecting path R34 is reflected toward the rotating mirror 4. The rotating mirror 4 is disposed on the light-emitting and collecting mirror 3 1 unit along the R34, and the beam B reflected by the light-emitting and collecting mirror 3 is incident on the mirror surface of the rotating mirror 4 to the mirror surface. The driven device 4 is driven in a fine direction by a predetermined rotation of the rotation, and is rotated in a rotation direction I. The rotating stone mirror 4 reflects the beam B of the human beam by radiation, sweeping over the back shoulder, and 5 In the preferred embodiment of the present invention, the light projecting path KM of the light-receiving mirror 3 is used as the rotation axis. The rotating mirror 4 reflects the beam 8 of the human beam to The mirror lens 5&' of the mirror group 5 is reflected by the mirror 5a of the mirror group 5, and the position of the scanning beam 81 varies with the rotation of the rotating mirror 4, in the reflection y < Scanning beam W The position of the original scanning beam B1 is moved by ^ u to: 2 scan the scanning beam of the scanning beam to form - side = drawing the bar code (not shown) to scan. The scanning beam B reflected back after scanning the bar code 〇, first 201108123, after the reflection through the mirror group 5 and the rotating mirror 4, projecting to the light-receiving light-receiving composite 3. Optical device 6 position in the light-receiving light-receiving composite mirror 3 <Light-receiving path R36 'The feedback light beam BG is focused and reflected by the curved mirror 31 of the light-emitting and collecting mirror 3 through the light-receiving path R36 to the light receiving device 6 ...,
參閱第6圖及第7圖，由於旋轉反射鏡4受驅動以旋 轉方向I旋轉，當旋轉反射鏡4旋轉到另—個位置時，其反 射之光束B掃過反射鏡組5之另—片反射鏡片％，再:反 == 反射鏡片A反射出掃描光束B3進行掃描。掃 描先束B3的位置隨旋轉反射鏡4之旋轉而變化，在反射於 片5b上由掃描光束B3的位置移動到掃描光束的， 其掃描動線在空間中構成另—角度之掃描線L2,可對另」 角度位置之待掃描條碼（圖未示）進行掃描。 “由此可知，旋轉反射鏡4以旋轉方向1旋轉，將^ 之光束B呈幅射狀反射出，其反射之光束b會掃過: =5之各反射鏡片5&、513’再由各反射鏡片53、％反射、 =光束扪、B2、B3、B4，掃描光束之掃描動 每 ^鏡片會構成—掃描線。由於光束B係入射至旋 二η面42上的同一點’且由於反射鏡組5之各; ，=a、5b以旋轉反射鏡4為等光程交點位置， :播而成，故掃描線的線性度佳，可精確判讀條螞; 過全部的反射鏡片後’各掃描線更集合構成 全方位掃描圖型他 、__ m 啤战， 由以上之實 崎衫⑽碼掃插 田乂上之實施财知，本發明所 裝置及其掃描機構確八 ’、、、'掃— Μ具產業上之利用價值，故本發明業已」 201108123 合於專利之要件。惟以上之敘述僅為本發明之較佳實施例說 明，凡精於此項技藝者當可依據上述之說明而作其它種種之 改良，惟這些改變仍屬於本發明之發明精神及以下所界定之 專利範圍中。 【圖式簡單說明】 第1圖係顯示本發明較佳實施例之立體圖； 第2圖係顯示本發明較佳實施例之上視圖； 第3圖係顯示第2圖中3-3斷面之斷面圖； 第4圖係顯示本發明於掃描投光時之光程路徑示意圖； 第5圖係顯示本發明於掃描收光時之光程路徑示意圖； 第6圖係顯示本發明於旋轉反射鏡旋轉一定角度後掃描投 光時之光程路徑示意圖之一； 第7圖係顯示本發明於旋轉反射鏡旋轉一定角度後掃描投 光時之光程路徑示意圖之二； 第8圖係顯示本發明於掃描時之掃描線構成之全方位掃描 圖型之示意圖。 【主要元件符號說明】 雷射條碼掃描裝置 基座殼體 底座 透明防塵罩 光源產生裝置 100 1 11 12 2 201108123Referring to FIGS. 6 and 7, since the rotating mirror 4 is driven to rotate in the rotational direction I, when the rotating mirror 4 is rotated to another position, the reflected beam B sweeps across the other of the mirror group 5. Reflecting lens %, then: reverse == Reflecting lens A reflects scanning beam B3 for scanning. The position of the scanning pre-beam B3 changes with the rotation of the rotating mirror 4, and is moved to the scanning beam by the position of the scanning beam B3 on the reflecting sheet 5b, and the scanning moving line forms the scanning line L2 of the other angle in the space. The bar code to be scanned (not shown) of the other angular position can be scanned. "It can be seen that the rotating mirror 4 rotates in the direction of rotation 1, and the beam B of the beam is reflected in a radial form, and the reflected beam b is swept: = 5 of each of the reflecting mirrors 5 & 513' Reflective lens 53, % reflection, = beam 扪, B2, B3, B4, scanning of the scanning beam will constitute a scan line. Since beam B is incident on the same point on the spin-on surface 42 and due to reflection Each of the mirror groups 5; , = a, 5b with the rotating mirror 4 as the position of the intersection of the optical path, : broadcast, so the linearity of the scanning line is good, can accurately read the strip; after all the reflective lenses The scan line is more integrated to form an omnidirectional scan pattern, __m beer battle, and the implementation of the above-mentioned Sakisaki (10) code sweeping on the field, the device of the present invention and its scanning mechanism are indeed eight ',,, ' Sweep - the use value of the cookware industry, so the invention has been "201108123" in conjunction with the requirements of the patent. The above description is only for the preferred embodiment of the present invention, and those skilled in the art can make other various improvements according to the above description, but these changes still belong to the inventive spirit of the present invention and the following definitions. In the scope of patents. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a perspective view showing a preferred embodiment of the present invention; Fig. 2 is a top view showing a preferred embodiment of the present invention; and Fig. 3 is a view showing a section 3-3 in Fig. 2 FIG. 4 is a schematic view showing the optical path of the present invention during scanning and light projection; FIG. 5 is a schematic view showing the optical path of the present invention during scanning and collecting light; and FIG. 6 is a view showing the present invention for rotating reflection One of the schematic diagrams of the path of the optical path when the mirror is rotated at a certain angle; FIG. 7 is a schematic diagram showing the path of the optical path when the rotating mirror is rotated at a certain angle and then scanning the light; FIG. 8 shows the present A schematic diagram of an omnidirectional scan pattern formed by a scan line at the time of scanning. [Main component symbol description] Laser barcode scanning device Base housing Base Transparent dust cover Light source generator 100 1 11 12 2 201108123
3 31 32 4 40 41 42 5 5a、5b3 31 32 4 40 41 42 5 5a, 5b
6 B BO6 B BO
B1、B2、B3、B4 IB1, B2, B3, B4 I
LI、L2 P R23 R34 R36 投光收光複合鏡 曲面鏡 中心平面鏡 旋轉反射鏡 驅動裝置 基體 反射鏡面 反射鏡組 反射鏡片 光接收裝置 光束 回授光束 掃描光束 旋轉方向 掃描線 全方位掃描圖型 光束投射路徑 投光路徑 收光路徑 -11 -LI, L2 P R23 R34 R36 Projection Recuper Mirror Curved Mirror Center Mirror Rotary Mirror Drive Base Mirror Reflector Mirror Reflector Lens Light Receiver Beam Feedback Beam Scanning Beam Rotation Direction Scan Line Omnidirectional Scan Pattern Beam Projection Path projection path light collection path -11 -
Claims (1)
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW98128198A TW201108123A (en) | 2009-08-21 | 2009-08-21 | Laser barcode scanner and its scanning mechanism |
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| TW98128198A TW201108123A (en) | 2009-08-21 | 2009-08-21 | Laser barcode scanner and its scanning mechanism |
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| TW201108123A true TW201108123A (en) | 2011-03-01 |
| TWI469058B TWI469058B (en) | 2015-01-11 |
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| US5235167A (en) * | 1988-10-21 | 1993-08-10 | Symbol Technologies, Inc. | Laser scanning system and scanning method for reading bar codes |
| TWI227861B (en) * | 2003-05-19 | 2005-02-11 | Zebex Ind Inc | Scanning device and method of laser barcode reader |
| KR100636347B1 (en) * | 2004-08-18 | 2006-10-19 | 엘지전자 주식회사 | Raster Scanning Display System |
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