Γ M326190 光學式掃描型指紋辨識系统，其主要乃如公告編號第 544630號「使用線性感測器以掃描指紋的方法及裝置」 乙案之專利範圍第1項及第12項所述，其用於掃描指紋 之裝置，係包括：一線性成像裝置；一實質圓筒狀的透明 滾筒，其具有一外圓周表面和兩端部’該透明滾筒可繞著 一縱向軸旋轉，該透明滾筒被設計成讓一手指可在該外圓 周表面滾動；一光源’位於適當位置以導引光線穿過該透 明滾筒的圓周表面；以及一聚焦裝置，讓被導引穿過該透 ❿ 明滾筒的圓周表面的光線集中到該線性成像裝置上。其用 於偵測該滚筒旋轉動作之旋轉偵測器，則係包括：一藕合 至該滚筒的溝槽輪；一第二光源，位於適當位置以導引光 線穿過該溝槽輪；以及一光線偵測器，位於適當位置以備 測被導引光線穿過該溝槽輪。然其乃存有下列缺點，亦有 待改進： 一、其用於掃描指紋襞置中呈實質圓筒狀之透明滾 筒，因其係呈圓枉形滾筒狀，因此當手指在其外圓周表面 馨 滚動時，將因其呈圓形曲面導致與手指接觸滑動時，產生 施力不均的缺點。 5、其祕_該賴旋轉動作之祕制器其必 須由：-藕合至該滾筒的溝槽輪、一位於適當位置以導引 光線穿過該溝槽輪之第二光源及一光線俄測器，位於適當 位置以偵測被導引光線穿過該溝槽輪之光線偵測器所組 成，而使得其整個構件乃相當複雜，相對造成在製造成本 及組立上之不便。 6 ：M326190 紋接觸面之每-邊3 1-側突設-操圖控制鑛片3 2，旅 使該呈突設狀態之擷圖控制鰭片3 2可去撥動—棟圖開 關3 3 (如第八圖所示）。 ) 進而藉由上述結構組成，本創作之滾動式線型指紋辨 識器即可藉由透光元件3係採以多邊形柱體製成，而來提 供其作為指紋接觸面之每-邊3 i外表面作接觸滾動 時’因多邊形_之每-邊3 m—平面狀態之外表 ®，且透光元件3呈多邊雜體設計τ，手指不致有左右 參 平移的問題；再加上，其呈多邊形枉體之每一邊3丄一側 犬《χ擷圖控制鰭片32,並配合一擷圖開關3 3設計， 故，取影像的速度可以由手指6滾動多邊形柱體的速度 决疋’且即可利用透光元件3旋轉動作去對線型光學感測 器2下達擷圖指令。 、因此，當採呈多邊形柱體製成而具透明及可滾動之透 光元=3,在其每-邊3 !皆呈平面狀態以作為指紋接觸 面而提供手指6置於其上作滾動時，除了即可利用透光元 _ 件3在被手指6滾動而旋轉，使其呈多邊形柱體之每一邊 3 1 —侧突設之擷圖控制鰭片3 2，即可去撥動一擷圖開 關3 3，而來偵測透光元件3的動作，並且判斷擷取線型 光學感測器2上圖像的時間點及下達擷圖之指令，同時， 即可配合利用光學照明裝置4導引光線穿過透光元件3 呈平面狀態而作為指紋接觸面之外表面去照射到手指 6 ’再利用光學成像裝置5透過捕捉透光元件3外表面所 射出的光線而獲得該指紋影像，最後由線型光學感測器2 ；M326190 將該收集之線段影像資料重新組合，達到準確地擷取指紋 影像之效果。 請再參閱第八圖所示，可進一步在多邊形枉體製成之 透光元件3，其於每一邊3 1交接處之每個尖角3 1 1兩 側刀別设以防滑結構7 ’令手指6在每一邊3 1所呈平 面之面與面間作滾動時，達到可防止因摩擦力不足而位移 缺失。 請參閱第九圖所示，擷圖控制鰭片3 2亦可用透光元 件3所呈多邊形枉體之各個尖角3 1 1代替，令其達到同 樣可去撥動一擷圖開關3 3，而來偵測透光元件3的動 作’並且判斷擷取線型光學感測器2上圖像的時間點及下 達擷圖指令。 請參閱第十圖所示，除了上述採多邊形柱體製成之透 光元件3、線型光學感測器2、光學照明裝置4、暨一光 學成像裝置5外，更可以在透光元件3與光學成像裝置5 之間，再加上一個或一個以上以一體成型之壓克力加上鍍 媒反射面或設計成内全反射面，進而作為轉折光線使模組 體得以壓縮之鏡子8、及一設於位光學照明裝置4適當位 置’而可使光學照明裝置4之打光較為均勻且打光路徑得 以控制之光導管9。 另外，對於線型光學感測器2解析度的限制：請參閱 第十一圖所示，無論是幾邊形柱體所製成的透光元件3， 其線型光學感測器2的畫素將受多邊形柱體製成的透光元 件3的各個邊長j和柱體長度γ的限制，若線型光學感測 /M326190 心 • 器2的規格已限定，則採多邊形柱體製成的透光元件3的 設計須符合下列公式： 2d /Γ M326190 Optical Scanning Fingerprint Identification System, which is mainly described in Bulletin No. 544630 “Method and Device for Scanning Fingerprints Using Line Sensors”. The patent scopes 1 and 12 of Case B are used. The apparatus for scanning a fingerprint includes: a linear imaging device; a substantially cylindrical transparent roller having an outer circumferential surface and both end portions. The transparent roller is rotatable about a longitudinal axis, and the transparent roller is designed Having a finger rolling on the outer circumferential surface; a light source 'located in position to direct light through the circumferential surface of the transparent cylinder; and a focusing device for guiding through the circumferential surface of the lens The light is concentrated on the linear imaging device. The rotation detector for detecting the rotation of the drum comprises: a groove wheel coupled to the drum; a second light source located at an appropriate position to guide light through the groove wheel; A light detector is positioned to prepare for the guided light to pass through the groove wheel. However, it has the following shortcomings and needs to be improved: 1. It is used to scan the transparent roller in a substantially cylindrical shape in the fingerprint device, because it is in the shape of a round dome, so when the finger is on its outer circumference surface When rolling, there is a disadvantage that uneven force is applied when sliding with a finger due to a circular curved surface. 5, its secret _ the rotation of the secret device must be: - the groove wheel to the drum, a second light source in a suitable position to guide light through the groove wheel and a ray The detector is located at a suitable position to detect the light detector that guides the light through the groove wheel, so that the entire component is quite complicated, which is relatively inconvenient in manufacturing cost and assembly. 6 : M326190 Each side of the grain contact surface 3 - Side protrusion - Control the ore piece 3 2, the bridge makes the protruding state control the fin 3 2 can be toggled - the building switch 3 3 (as shown in Figure 8). And by the above structural composition, the scrolling linear fingerprint reader of the present invention can be made by using a transparent cylinder 3 to adopt a polygonal cylinder to provide the outer surface of each side of the fingerprint contact surface. When making a contact scroll, 'Because the polygon_ each side - 3 m - the plane state is outside the table ®, and the light transmissive element 3 is in the polygonal miscellaneous design τ, the finger does not have the problem of left and right parameter translation; plus, it is a polygon 枉Each side of the body has 3 sides of the dog. "The figure is controlled by the fin 32 and is designed with a switch 3 3 . Therefore, the speed of taking the image can be determined by the speed of the finger 6 rolling the polygonal cylinder. The linear optical sensor 2 is rotated by the light transmitting element 3 to issue a mapping command. Therefore, when the transparent cylinder is made of a transparent cylinder and has a transparent and rollable light-transmitting element=3, it is in a planar state on each side of the same as the fingerprint contact surface, and the finger 6 is placed thereon for scrolling. In addition, the light-transmitting element_3 can be rotated by the finger 6 to be rotated on the side of each side of the polygonal cylinder, and the fins 3 2 can be flipped. The switch 3 3 is used to detect the action of the light-transmitting element 3, and the time point of capturing the image on the line-type optical sensor 2 and the command to release the image are determined, and at the same time, the optical illumination device 4 can be used together. The guiding light passes through the light transmitting element 3 in a planar state and serves as a surface of the fingerprint contact surface to illuminate the finger 6'. The optical imaging device 5 transmits the light emitted from the outer surface of the light transmitting element 3 to obtain the fingerprint image. Finally, the linear optical sensor 2; M326190 recombines the collected line image data to achieve accurate capture of the fingerprint image. Referring to FIG. 8 again, the light transmissive element 3 can be further formed in a polygonal body, and each of the sharp corners 3 1 1 of each side of the intersection of 3 1 is provided with a non-slip structure 7 ' When the finger 6 is rolled between the plane of the plane on each side 31 and the surface, it is prevented that the displacement is missing due to insufficient friction. Referring to FIG. 9 , the control fins 3 2 can also be replaced by the sharp corners 3 1 1 of the polygonal body of the light-transmitting element 3, so that the same can be used to toggle the switch 3 3 . To detect the action of the light transmissive element 3 and to determine the time point at which the image on the line type optical sensor 2 is captured and to issue a map command. Referring to the tenth figure, in addition to the above-mentioned light-transmitting element 3 made of a polygonal cylinder, the linear optical sensor 2, the optical illumination device 4, and the optical imaging device 5, the light-transmitting element 3 can be Between the optical imaging device 5, plus one or more integral embossing electrodes plus a plating reflective surface or an internal total reflection surface, and then used as a mirror to compress the module body, and A light pipe 9 is provided which is disposed at the appropriate position of the optical illumination device 4 to make the illumination of the optical illumination device 4 relatively uniform and the light path is controlled. In addition, for the limitation of the resolution of the linear optical sensor 2, as shown in the eleventh figure, the pixel of the linear optical sensor 2 will be the light transmissive element 3 made of the prismatic cylinder. The length of each side j of the light transmissive element 3 made of a polygonal cylinder and the length γ of the cylinder are limited. If the specification of the linear optical sensing/M326190 core 2 is limited, the light is made of a polygonal cylinder. Component 3 must be designed in accordance with the following formula: 2d /
Pixel number(V) > — ^>d< Pixei number(V)x 1( rPixel number(V) > — ^>d< Pixei number(V)x 1( r
Pixel number(H) Pixei number(V)x ^ 其中 Pixelnumber(H)為水平列畫素，Pixelnumber(V)為 垂直行畫素’rf為採多邊形柱體製成的透光元件3的各個 邊長，£為柱體長度，y*為手指指紋之紋路與紋路之間距。 • 【圖式簡單說明】 第一圖··係本創作之結構實施示意圖（透光元件呈三邊形 柱體，前視方向）。 第一圖·係本創作之結構實施示意圖（透光元件呈四邊形 柱體，前視方向）。 第三圖：係本創作之結構實施示意圖（透光元件呈五邊形 柱體，前視方向）。 第四圖·係本創作之結構實施示意圖（透光元件呈六邊形 馨 柱體，前視方向）。 第五圖：係本創作之結構中，有關透光元件之後視方向示 意圖（透光元件以呈六邊形柱體為例）。 第六圖：係本創作之結構中，有關透光元件之後視方向示 意圖（透光元件以呈六邊形柱體，其擷圖控制鰭 片呈另一型態設計為例）。 第七圖：係本創作之結構中，有關透光元件之後視方向示 思圖（透光元件以呈六邊形柱體，其擷圖控制鰭 • M326190 " 片呈又一型態設計為例）。 第八圖：係本創作之結構實施示意圖（透光元件以呈六邊 形柱體為例，侧視方向）。 第九圖：係本創作之結構中，有關透光元件以尖角為擷圖 控制鰭片之旋轉動作示意圖（透光元件以呈六邊 形柱體為例，後視方向）。 ‘ 第十圖：係本創作之蟑構另一實施示意圖（透光元件以 呈五邊形柱體為例，前視方向）。 • 第十一圖：係本創作之結構中，若光學感測器的規格已限 定時，透光元件設計須符合之條件示意圖。 【主要元件符號說明】 (2)線型光學感測器 （3 )透光元件 (3 1 )每一邊 （3 1 1 )尖角 (3 2)擷圖控制鰭片 （3 3)擷圖開關 (4)光學照明裝置 （5)光學成像裝置 (6 )手指 (8 )鏡子 (Θ )邊長 (/ )間距 (7)防滑結構 (10)光導管 (€)柱體長度 12Pixel number(H) Pixei number(V)x ^ where Pixelnumber(H) is the horizontal column pixel and Pixelnumber(V) is the vertical line pixel 'rf is the length of each side of the light transmissive element 3 made of the polygonal cylinder , £ is the length of the cylinder, y* is the distance between the texture and the line of the finger fingerprint. • [Simple description of the diagram] The first diagram is a schematic diagram of the structure of the creation (the light-transmissive element is a triangular cylinder, the front view direction). The first picture is a schematic diagram of the structure of the creation (the light-transmissive element is a quadrilateral cylinder, the front view direction). The third picture is a schematic diagram of the structure of the creation (the light-transmitting element is a pentagon cylinder, the front view direction). The fourth figure is a schematic diagram of the structure of the creation (the light-transmitting element is a hexagonal cylinder, the front direction). Fig. 5: In the structure of the present invention, the rear view of the light-transmitting element is shown (the light-transmitting element is taken as a hexagonal cylinder). Figure 6: In the structure of this creation, the rear view of the light-transmitting element is shown (the light-transmitting element is in the shape of a hexagonal cylinder, and the pattern-controlling fin is another type of design). Figure 7: In the structure of the creation, the light-transmitting component is viewed in the direction of the rear view (the light-transmissive element is in the shape of a hexagonal cylinder, and its flip-flop control fin • M326190 " example). Figure 8: Schematic diagram of the structure of the creation of this creation (the light-transmitting element is in the form of a hexagonal cylinder, side view direction). The ninth picture: In the structure of the present invention, the light-transmitting element is controlled by a sharp angle as a schematic diagram for controlling the rotation of the fin (the light-transmitting element is in the form of a hexagonal cylinder, and the rear-view direction). ‘The tenth picture: another implementation diagram of the structure of the creation (the light-transmitting element is in the form of a pentagonal cylinder, the front view direction). • Figure 11: In the structure of this creation, if the specifications of the optical sensor are limited, the design of the light-transmitting component must meet the conditions. [Description of main component symbols] (2) Linear optical sensor (3) Light-transmitting component (3 1 ) Each side (3 1 1 ) Sharp corner (3 2) Cut-out control fin (3 3) Cut-out switch ( 4) Optical illumination device (5) Optical imaging device (6) Finger (8) Mirror (Θ) Side length (/) Spacing (7) Anti-skid structure (10) Light pipe (€) Column length 12