200910160 九、發明說明： 【發明所屬之技術領域】 本發明係有關於―縣啡魏置及財法，尤指-種不變形光斑取 樣裝置及其方法。 【先前技術】 在2004年曰發表-篇用於光學電腦滑氣之雷射光斑圖案技術，其利用 平均雷射光斑」大柯變_職出#縣_著光源與觀面相對運 動而移動的贿’只魏知道雷射⑽在舰器上移_平均速度就可推 知光源與被照面之相對運動資訊，進而可運用此技術於雷射滑鼠 斑是被照面散射光於倾器上互相干涉而得之影像，其影像強度與散縣 路彼此間之相位差有關。當雷射光源與被照面有相對運動時，散射光路之 2差將麵减變’隨之在碰H上之干涉影像亦產生變化，所以 射光斑是很料W。軸规改變崎雜賊 強度不太會變化，因它只與雷射光源強度触照面反射率有關 =被照面械運動時，此二條件並沒有改變，因此影 j 2，加上導致產生光斑的表面粗輪度是均句分佈的， = t的雷射細悄密度應料太錢化，此絲補航 均大 日，3 w ’於細年6細妾受 後在2004年1 β 19日，中國_，張宏志g 實現滑鼠功能之專利：「-種滑鼠光帛“ ：斑 月通過IPC專利審核，張宏志先生之專專議年1 均光大小就可預知。張宏志先生如姻水平、上下各二 =’ ，#射光輯著移動， 下移動方向之資訊，再由取樣時間内，光斑通過偵檢器的數 200910160 鱗㈣光轉时均轉，知道紐鶴方向與距 離就可异传光源與被照面之相對移動資訊，這就是張宏志先生所提出之訊 號處理方法。 j樣的想法亦被安捷倫公司使用於光斑筆之專利，在應年4月，安 捷倫提出用上、下、左、右、中等五個感知器，感知器彼此距離約等於光 斑平均大小的原則，姻光斑通過五域知器相關時序進而求得光斑移 資訊。 安捷倫公司於2005年2月公佈了他們雷射滑鼠的專利，該篇專利中特 別強調-般滑鼠光學讀取頭的雷射光斑尺寸大小，約從數百奈米到數微 米’比起:個感測位元尺寸3〇微米而言，實在太小，—個感測位元可以容 下數十個光斑，因此光賴號之變化顯得不，很料有平均效應，所 以不易直接光斑訊號來取得有效資訊。安捷倫強調其專利並不是純粹 利用雷射光斑而已’他們提出鏡面反射之光學讀取頭設計，採用反射角等 於入射角的光路設計’將二維感·設於反射㈣於人射角的位置，量取 此時之反射光及歸光之職，再加时析制絲触照面相對移 資訊。 、我們亦開發雷射滑鼠相關專利，該篇專利係一種光斑取像裝置與方 法’針對雷射光斑容賴形及光斑尺寸太小不易辨識制題給予合理解 決。我們提出利用非鏡面反射二維光斑取像裝置’在散射角與反射角相差 約10。的位置來量取雷射光斑’並引進光圈限制了被照面散射光進入二維偵 檢器的入射視場角’如此可有效抑制光斑變形4，並且因為縮小光圈孔徑， 使光斑變大大於感測位元尺寸’達到光斑影像既大且不易變形之效果，這 對光斑圖形識別非常有幫助。 利用光斑平均尺寸不改變的原則來做為訊號處理的基礎，所開發出來 =雷射滑鼠，在某些反射面（如光滑表面）拽標隨意不酬跳動現象， 這可歸咎於被照面愈光滑，光斑影像愈弱，尺寸也因而變得愈小，因此用 平均法就可能造成-些誤差導舰號處理結果不穩定，當此技術應用到手 200910160 指導覽料需要精密角度解析之魏時，就無法滿足需求。 、，利用鏡面反射結縣取制光姆彡像可时為二鐵份，主要成份來 自平面的均勻反射光及少部份來自粗__散射光，均勻反射光相位一 致而粗糙驗散射光其她則纽變，此二種不嶋性的光彼此會互相 干涉瓜成干賴形’解析前後干涉騎的相關性，可以得到光源與被照面 2目，移動胃訊今若被照面非常城;，則均自反射光將大為減少，散射光 能量增加’她變化快速，不利卿相干性之識別。 我們之前所開發出光斑取像裝置與方法，採用非鏡面反射二維取像震 ’並利用將級尺寸變大，更使光源與被照面有減移動時，盆光 ::變化財效限制，以致光_形不㈣形，有利於圖形識別。ς因 的觀測限制了散射光人射至二維碰器之視，所以在物體表面 右If =，限制成—小區域，而且取像裝置與被照面的相對移動距離是 β πΓϊ否貞〗無'祕持峨察的小_在移動時纽不變賴特性，這 =ΓΤ的應用，對物體表面進行大面積的檢測尤其為甚。若要 使維持先科變形賴容騎姆__變長就必麗加 ^ 物體表面的距離來補償移動距離變 a 兄和 ⑽H 的貞面作用，如此-來將使整個光學 頭變大，不利目前輕薄短小之猶，故仍有改善之空間。“ 【發明内容】 本發明之目的之一，在於提供— 用限光餘得顺數不變戦斑r種不變城斑取像裝置及其方法，利 本發月之目的之-，在於提供—種不彡^ ^ ^ 用影像重魏些不變形光斑，形 輝像裝置及其方法，利 本發明之目❹一 + 積之不變形光斑圖。 、’在於提供一種不變形光取後择署及豆方 發明所產生之光斑圖依據物體表面之=，取像«及其方去，本 變形的，所以本發明之光賴 化而產生’又醜光斑圖為不 為達到上述之目的，本發明具三維變化之物體表面。 ’、為種不變形光斑取像裝置及其方法， 200910160 该不變形光斑取像裝置包含—光發㈣、—限光模組及—感測器，該限光 模組設於該感測器前’該p艮光模組係包含《：限光件，該些限光件係排列 為一維或二維陣列，當該光發射器發射一光源至一物體表面，產生至少一 散射光，通過該限光模組限制該至少一散射光，並產生複數繞射光，該些 繞射光相互干涉產生複數不變形光斑，且成像於該感測器上，最後依據該 些光斑得到一大面積且不變形之光斑圖。 【實施方式】 茲為使貴審查委員對本發明之結構特徵及所逹成之功效有更進一步 之瞭解與認識，謹佐以較佳之實施例及配合詳細之說明，說明如後： 凊參閱第一 A圖，係本發明之一較佳實施例之結構示意圖。如圖所示， 本發明提供一種不變形光斑取像裝置，其包含一光發射器1〇、一限光模組 12及一感測器14。該光發射器1〇係發射一具高同調性之光源至一物 體表面2 ’如：雷射光，所以該光發射器1〇為面射型雷射（Vertical CavHy200910160 IX. INSTRUCTIONS: [Technical Field to Which the Invention Is Applicable] The present invention relates to a county-type morphine and a financial method, and more particularly to a non-deformable spot sampling device and method thereof. [Prior Art] Published in 2004 - a laser spot pattern technology for optical computer slippery, which uses the average laser spot" Da Ke changed _ occupation out #县_ with the relative movement of the light source and the moving surface Bribe 'only Wei knows that the laser (10) moves up on the ship _ the average speed can infer the relative motion information of the light source and the illuminated surface, and then this technique can be used to irradiate the laser spot on the laser. The resulting image is related to the phase difference between the image and the scattered county roads. When the laser light source and the illuminated surface move relative to each other, the difference between the scattered light paths will be reduced by the surface, and the interference image on the touch H will also change, so the spot is very expected. The axis gauge changes the intensity of the thief, which is not changed because it is only related to the reflectivity of the laser source intensity touch surface. When the surface is moved by the surface, the two conditions are not changed, so the shadow j 2 is added, which causes the spot to be generated. The coarse radii of the surface are evenly distributed, and the density of the laser of = t should be too much money. This silk replenishment is big day, 3 w 'after the fine year 6 fine 妾 after the 2004 1 β 19 , China _, Zhang Hongzhi g patent to achieve the function of the mouse: "------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Mr. Zhang Hongzhi, if the level of marriage, the upper and lower two = ', #光光, the movement, the direction of the movement direction, and then by the sampling time, the spot passes through the number of detectors 200910160 scales (four) light turn all the time, know the new crane The direction and distance can transmit the relative movement information of the light source and the illuminated surface. This is the signal processing method proposed by Mr. Zhang Hongzhi. The j-like idea was also used by Agilent for the patent of the spot pen. In April of this year, Agilent proposed the use of five perceptrons of up, down, left, right and medium. The distance between the sensors is about equal to the average size of the spot. The illuminating spot obtains the spot shift information through the sequence of the five-domain finder. In February 2005, Agilent announced the patents for their laser mouse, which emphasizes the size of the laser spot of a mouse-like optical pickup, ranging from hundreds of nanometers to several micrometers. : The size of a sensing bit is 3 〇 micron, it is too small, a sensing bit can accommodate dozens of spots, so the change of the light lag does not appear, it is expected to have an average effect, so it is not easy to directly spot signal Get effective information. Agilent emphasizes that its patents are not purely using laser flares. They have proposed an optical pickup design that uses specular reflection. The optical path design with a reflection angle equal to the angle of incidence is set at the position of the reflection (four) at the angle of the person. Measure the position of the reflected light and the return light at this time, and then add the relative movement information of the silk touch surface. We have also developed a patent related to laser mouse. This patent is a kind of spot imaging device and method. It is designed to understand the problem that the laser spot size and the spot size are too small to be easily identified. We propose to use a non-specular reflection two-dimensional spot imaging device' to have a difference between the scattering angle and the reflection angle of about 10. The position to measure the laser spot' and introduce the aperture to limit the incident field of view of the scattered light entering the two-dimensional detector. This can effectively suppress the spot deformation 4, and because the aperture aperture is reduced, the spot becomes larger than the sense The measurement of the bit size 'to achieve the effect of the spot image is large and not easy to deform, which is very helpful for spot pattern recognition. Using the principle that the average size of the spot does not change as the basis for signal processing, it has been developed = laser mouse, which is arbitrarily beaten on some reflective surfaces (such as smooth surfaces), which can be attributed to being illuminated. Smooth, the weaker the spot image, the smaller the size. Therefore, the average method may cause some errors to be unstable. When this technique is applied to the hand of 200910160, the precision of the angle analysis is required. It is impossible to meet the demand. The use of specular reflection to obtain a light image can be two irons, the main component is from the plane of uniform reflected light and a small part from the coarse __ scattered light, the uniform reflected light phase is consistent and the rough light is scattered. She is new, these two kinds of indecent light will interfere with each other, and the correlation between the interference and the riding can be obtained. The light source and the illuminated face can be obtained, and the mobile stomach is now very urban; , the self-reflected light will be greatly reduced, and the scattered light energy will increase 'herself changes quickly, which is unfavorable for the identification of coherence. We have previously developed a spot-receiving device and method that uses non-specular reflection to take two-dimensional image shocks and uses the size of the stage to be larger, and the light source and the illuminated surface are reduced. So that the light _ shape is not (four) shape, which is conducive to graphic recognition. The observation of the cause limits the view of the scattered light to the two-dimensional impactor, so the right If = on the surface of the object is limited to a small area, and the relative moving distance between the image capturing device and the illuminated surface is β π Γϊ no 贞 〗 'The secret _ small _ in the moving time does not depend on the characteristics, this = ΓΤ application, the large-area detection of the surface of the object is especially true. In order to maintain the syllabic deformation, Lai Rong _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ At present, there is still room for improvement. [Explanation] One of the objects of the present invention is to provide a non-invariant urban spot image capturing device and method thereof with a limited light-retaining singularity, and the purpose of the present invention is to provide ——————— ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ The spot pattern produced by the Department and the Bean Inventor is based on the surface of the object, taking the image «and its side, the deformation, so the light of the invention is produced and the ugly spot is not for the above purpose, The invention has a three-dimensionally changing surface of the object. ', a non-deformable spot image capturing device and method thereof, 200910160 The non-deformable spot image capturing device comprises a light emitting (four), a light limiting module and a sensor, the limit The optical module is disposed in front of the sensor. The p-light module comprises: a light-limiting member, and the light-limiting members are arranged in a one-dimensional or two-dimensional array, and the light emitter emits a light source to the first At least one scattered light is generated on the surface of the object, and is limited by the light limiting module At least one scatters light and generates a plurality of diffracted lights that interfere with each other to generate a plurality of non-deformed spots, which are imaged on the sensor, and finally obtain a large-area and non-deformed spot pattern according to the spots. </ br> </ br> </ br> </ br> < br /> < br /> < br /> < br /> < br /> < br /> < br /> A schematic diagram of a preferred embodiment of the present invention. As shown, the present invention provides a non-deformable spot imaging device that includes a light emitter 1 , a light limiting module 12 , and a sensor 14. The light emitter 1 emits a high-coherence light source to an object surface 2' such as: laser light, so the light emitter 1 is a surface-emitting laser (Vertical CavHy
Surface Emitting Laser，VCSEL)、邊射型雷射(Edge Emission Laser， EEL)、尚同調性之氣體雷射、高同調性之固體雷射或可發射窄頻光而具有 尚同調性的發光二極體，而該光源1〇〇之照射該物體表面2之面積依據預 設之面積大小而調整該光發射器。而該限光模組12係具有複數限光件， 該些限光件排列為一維或二維陣列，而本實施例之每一限光件包含一光圈 121及一成像透鏡122，該光圈121設於該成像透鏡122與該物體表面2之 間，該些光圈121及該些成像透鏡122分別排列為一維或二維陣列，該感 測器14設於該限光模組12之後，其為--維或二維感測器，如：CCD或 CMOS 〇 〆 當該光發射器10發射該光源1〇〇至該物體表面2時，產生至少一散射 光102’ s亥至少一散射光102的特性係隨著該物體表面2的粗糖度而定，如·· 該物體表面2為一光滑面（鏡面）時，該光源100投射至該物體表面2所 產生之散射光102將集中到一反射方向且與該光源1〇〇能量相同；或者該 8 200910160 物體表面2呈粗糙面（霧面）’該光源loo投射至該物體表面2後，產生各 方向之散射光102。 由上述可知，如果該物體表面2為粗糙而具有高低不平之三維變化， 將造成該光源1〇〇投射後，產生該至少一散射光1〇2，並使該至少一散射光 102往任意方向傳播，進而產生易於辨識的光斑。相反地，粗糙度越低的該 物體表面2，當該光源100投射至該物體表面2時，散射效應越不明顯 產生的光斑越不易辨識。 承上述，當該光源100投射至該物體表面2後，產生該至少一散射光1〇2， 利用該限光模組12接受該至少一散射光102,而該限光模組12具有該些限 光件，該些限光件排列為一維或二维陣列，而每一限光件包含一光圈^21 與一成像透鏡122，該成像透鏡122設於該光圈121之後，即設於該光圈 121與該躺n 14之間’該些限光件限繼至少—散射光⑽進入該感測 器14之入射視場角，入射視場角之大小決定於該光圈121與該成像透鏡122 之距離，以及該光圈丨21與該成像透鏡122之直徑，又因該些光圈121之 孔徑使該至少-散射光1G2產生複數繞射光，該些繞射光通過該些成像透 鏡122產生複數光斑’並可依據該光圈121之孔徑大小控制其光斑大小， 而該些光喊像_細|| 14，進而鎌該些光酿影像重整產生一大面 積且不變形光斑圖。 請參閱第-B圖，係本發明光圈位置與人射視場角之關係之光路徑示意 圖如圖所示’上述第一 A圖之實施例該限光模組之該些限光件包含呈 陣列之該些成像透鏡122及呈陣列之該些光圈121，第1β圖只繪出該些成 像透鏡122之-透鏡122及該些光圈121之一光圈121表示，而該光圈i2i 可以置放於G點或置放於H點。置放在H點處的該光圈⑵和該成像透鏡 122所組成的龜光件，比置放在G點處的該光圈ΐ2ι和該成像透鏡所 組成的該限光件’會阻齡光軸較遠的散射光。由本光雜示意圖可知， 在》玄二成像透鏡122及該感測器14之間的該些光圈⑵，該些光圈⑵的 位置可以控制人射視場角的大小。於此本實補舉出當就源投射於該物 200910160 體表面2上E、F兩點’產生至少—散射光1〇2，該至少一散射光1〇2通過 该成像透鏡122，若設置該光圈121於G點處時，使該光源投射於e、f兩 點所產生之該至少-散射光102皆可經由該成像透鏡（22，成像於該感測器 14之E’、F’兩點，但F’點的光通量大於E’點的光通量。若設置該光 圈121於Η點處’將使只有靠近光軸之F點可經由該成像透鏡122，而成像 於該感測器14之F’ St，離光轴較遠之Ε點則無法經由該成像透鏡122， 成像於該制H 14上。本實施例巾’該細之個係孔徑細(aperture stop)，該成像透鏡122之作用係場光闌（field st〇p)。本實施例只舉該些 限光件之一限光件為例，本實施例之該限光模組12係具有該些限光件，該 些限光件排列為一維或二維陣列’適當調整該光圈121之大小及位置可同 時達到控制光斑尺寸及有效限制該至少一散射光1〇2進入該感測器14之入 射視場角。 請一併參閱第一 C圖，係本發明之另一較佳實施例之結構示意圖。如圖 所不，與第一 A圖之實施例之不同在於，本實施例該限光模組12包含複數 限光件，每一限光件係亦包含一成像透鏡122及一光圈121，但該成像透鏡 122設於該光圈121之前，即該光圈121設於該成像透鏡122與該感測器 14之間。 另參閱第一 D圖，係本發明之另一較佳實施例之結構示意圖。如圖所 不：與第一 A圖之實施例不同在於，該限光模組12係包含該些限光件，每 —限光件係一成像透鏡123,而該成像透鏡123周圍係設置一擋光片124, 因該擋光片124具有該第一 A圖之該光圈121的作用，使該至少一散射光 1〇2產生繞射效應’進而產生該些繞射光，並與該物體表面2之照射面積共 同作用限制該至少一散射光1〇2進入該感測器μ之入射視場角，且通過其 中心所設之該成像透鏡123 ’而在該感測器14上產生該些光斑圖。 凊參閱第二圖，係本發明之另一較佳實施例之結構示意圖。如圖所示， 與第一 A圖之實施例不同在於，本實施例之該限光模組12包含該些限光 件’每—限光件包含一成像透鏡122、一第一光圈125及一第二光圈126， 200910160 而該成像透鏡122設於該第一光圈125及該第二光圈126之後，即該成像 透鏡122设於該第一光圈126及該感測器14之間，而由該限光模組12至 該感測器14間之排列係先放置該第一光圈125，接著放置該第二光圈126， 再放置該成像透鏡122，最後放置該感測器14。當該光發射器1〇發射該光 源100至該物體表面2產生該至少一散射光1〇2，該些第一光圈125阻擋部 分之該至少一散射光102，限制該至少一散射光102進入該感測器14，當 部分之該至少一散射光102通過該些第一光圈125後，利用該些第二光圈 126再度限制部分之該至少一散射光102進入該感測器14。該些第一光圈 125和該些光圈126的直徑大小和兩者之間的距離決定了部份該至少一散射 光102進入該感測器14的入射視場角，進而使入射視場角内之該至少一散 射光102產生該些繞射光，形成該些光斑並通過該些成像透鏡122成像於 該感測器14上，然後依據該些光斑經影像重整形成一大面積且不變形之光 斑圖。上述έ亥些成像透鏡122、該些第一光圈125及該些第二光圈126之排 列亦可將該些成像透鏡122設於該些第一光圈125及該些第二光圈126之 前，即該些第一光圈125及該些第二光圈126設於該成像透鏡122與該感 測器14之間。另該些成像透鏡122亦可設置於該些第一光圈125及該些第 二光圈126之間。 請參閱第三Α圖，係本發明之產生二次散射光之示意圖。如圖所示，與 第- B圖之實施例不同在於’每—限光件包含該成像透鏡122及該光圈 121，並於該感測器14上加設一套筒141，因該感測器14具有該套筒i4i。 該物縣面2不在人射視場㈣亦即非峨區域之〗闕產生之該至少一 散射光102投射至該套筒14ι内側之丨’點上，丨，點將產生一二次散射光 104’該二讀射光⑽可通過設㈣點上之該細121而射向該感測器14 之I點上’邊一次散射光1〇4若無法有效去除，將會增加該感測器μ之 背景雜訊，不利訊號處理。 —明參閱第二8圖，係本發明之另一較佳實施例之光路徑示意圖。如圖所 不，與第三A ®之不同在於，為了阻擋該至少—散射光1()2投射至該套筒 200910160 141内侧所產生之該二次散射光進入該感測器14，而造成該感測器14產生 背景雜訊’因此於該限光模組12前設置一前級限光模組16，而該前級限光 模組16係具有複數前級限光件，該些前級限光件係複數前級光圈ι61，並 排列為一維或二維陣列，於本實施例只舉該些限光件之一限光件及該些前 級限光件之一前級限光件作表示。因該前級限光模組16係設於該物體表面 2與該限光模組12之間’該限光模組12之該些限光件係包含該些成像透鏡 122及該些光圈121，所以該物體表面2與該成像透鏡122間設置該前級光 圈161，該成像透鏡122與該感測器14之間設置該光圈121，當該光源投 射至該物體表面2之F點及I點，落於訊號區域之F點所產生之該至少一 散射光102可通過該前級光圈161、該成像透鏡122及該光圈121直接入射 至感測器14而成像，落於非訊號區域之I點所產生之該至少一散射光1〇2 被該前級光圈161所限制阻擋，而其餘通過該前級光圈161之該至少一散 射光103,投射至該套筒14所產生之該二次散射光亦無法進入該感測器 14，如此可有效降低为景雜訊光，提高該感測器14之訊噪比。本實施例為 說明於该限光模組12前增設該前級限光模組16可有效阻擋經該光源投射 之該物體表面2所產生之該至少一散射光1〇3投射至另一物體表面所產生 之δ亥一-人散射光，避免该二次散射光進入該感測器Μ，有效降低該感測器 14之背景雜訊。 請參閱第三C圖，係本發明之另一較佳實施例之結構示意圖。如圖所 不’與第一 c圖之實施例不同在於’每一限光件包含該雜透鏡122及該 光圈121，並於呈陣列之該些成像透鏡122前，與該物體表面2間加入呈陣 列之該些前級光圈161 ’該前級光圈161可有效阻擋，該物體表面2所產生 之該至少-散射光1G2所產生之該二次散射光，避免該二次散射光進入該 感測器14。 上述第- Α圖至第二(：圖皆為本發明之不變形光斑取像褒置之較佳實施 例’該不變形光斑取像裝置主要具有-光發射H、—限光模組及—感測器， 而該限光模組包含該些限光件，該些限光件排列為一維或二維陣列，並讓 12 200910160 限光件與相鄰之限耕在該物體表面2之取賴 每一限光件成像之最大相對光程差變化量遠小於該光源之波長ί而= -限光件成像於域·之光料會_，Μ糊影像重整，將透= 限先模組所產生的該些光斑，重整為一個大面積且不 〆 可應用於電腦滑鼠、手指導覽号、知雜光斑圖進而 手臂精密定位_。 a慧卡、三靴__裝置或機械 本發明之碑料棘料置具轉狀· 組取像，再加上影像重整而獲得一大面積不變形光斑圖。若是取像2Ϊ 斑圖像’將因成像透鏡與物體表_相對 f度分布異於移«的光斑圖像。本不變形光斑取像裝置“了 ^ 件限制入賴場角，轴_紐光件相的 面發生撕移動時，此—小細成像在域· 口 =太大賴化’所叫糊像的光謎分布也辭不變，光斑圖像 :二但:會變形’然而，其相對移動距離則受到-定的限制，才能維 例卿：錄伟與料祕料4倍驗長度，放 裝二叙Η二、統中’由於該限光件之作用’該物體表面相對於取像 ^ 4 ’其成像光斑在移動前後可產生最大相對光程差變化量 公式為· A(nL)~^-c〇sz0 {Λ >. Y U； ΤΙ斑平均直，，d為該不變形光斑取像裝置與該物體表面相對之 物贈二^為，測器至該物體表面之垂直距離，θ為取像裝置光軸與該 於桐之乂肖。為了達到光獅變形，相對絲差變化4必須遠小 於一個波長，△㈣)〈小對—設計完成的取健置而言，δ、_都是固定 =1滿足利《场光斑不變形條件，由⑴式得知，可容許的移動距 離d就會㈣限制。如果將光斑取像裝置應用到小型電子裝置上，如：腿 13 200910160 及筆S己型電腦等，勢必要縮小該感測器至該物體表面之垂直距離(2γ)，此 時右要滿足△(吡)<<;1，就無法容忍較大的移動距離(幻，因此限制了光斑取 像裝置的實用性。本發明提出具有呈陣列之限光模組之不變形光斑取像裝 置及其方法，可以在小結構尺寸（r)，滿足光程差變化量Δ(”ζ)遠小於一個 波長的條件，對物體表面進行大面積的偵測，得到大面積不變形光斑圖， 整個大面積不變形光斑圖又沒有移動距離(d)的限制。假設限光模組陣 列中每獨立的限光件都滿足△㈣^<<;1光斑變 _距離為L。我們讓兩相鄰限光件的距離，/，小於 场角限制之下’物體表面之取像區域有部份重疊，而反應在光斑圖上，重 疊的部份，為入射視場角和/ <d咖的不變形限制使得兩_限光件看到的 光斑圖像疋-樣的，再轉列巾兩兩鴻的光關整理成—連續光斑圖。 限光件，當它移動了距離7’所看到的取像區域為其緊鄰限光 取像區域’而此—限光件移動前後，重複看到的區域就 二半之=分，重疊部分的光斑圖是不變形的。限光模組中兩兩相鄰 的大面積連續光關，在取像裝置移動了 /距離i^ 錢「移動==疋不變的，再移動/距離，依然保持著光斑圖像樣式。 二移動過程中連續光斑圖最邊緣的—端不斷有圖像的消失，而另一端 則有新取像區域的光斑產生。综合本 可岸用钱K細轉裝置之特點，本技術 胸Γ 雜長_大_触圖。本 =33=裝置之該限光模組所產生之該些光斑，該些光斑經 到之大面積光斑圖亦不變形。 因每先斑林變形，使最後得 α月參閱第四圖，係本發明之產生複數光斑之示意圖。如 H提供-種不咖光峰縣置，财變形光絲像健^模 組12，該限光模組12係包含複數限光件，該些限 限先模 列。而本實施例只舉該些限光件呈—維陣列 14 200910160 ^ 2及一，圈121，而該成像透鏡U2之放大倍率設為Μ，Μ在此範例設 ，0. 5而每限光件所取樣之物縣面21與相鄰之該限光件所取樣之物 表面22部份重4 ’當該光雜射於·體表面2所產生之該至少-散射 私辨主通過該限光模組12，每一限光件於該感測器之成像是分開的，如該 ^體表面Ai面會成像於A1，面，同理該物體表面βι面成像於扮，面，該 物體表面ci面成像於C1，面。雖然該A1面與該βι面有部分重疊，該βΐ 面與該Cl面有部分重疊，但由於該限光件及成像倍率之作用，A1，、扮， t cr S皆是獨立分開的，因此本發明裝置可以有效分割該物體表面2， 到複數成像區域。更於該限光模組12前設置—前級限光模組16阻 =光源投射於該物體表面2所產生之該至少—散射光⑽所產生之二次 進人該感測器’提高賊·之訊噪比。上述方式可 二 維陣列之限光模組。 請^第五圖’係本發明之另—較佳實施例之影像重絲細。如圖 /右邱田物體表面2分割為複數區塊23，每一區機23與相鄰之區塊 =卩分㈣’織經蝴㈣之傾形光崎像裝_鍾光斑3， 該些光斑3成雜該感測器為分開的，其中兩相祕㈣重疊的部分 ^像2次’如區塊2,3,4,5等’有些區塊23則重覆取像3次，如區塊⑴& 目岐讓該物體表面2 f訊全部被記錄，不_不變形光斑 取像裝置與職體表面2產生相對鶴時，顏該倾絲2的資訊，由 於該限光模組中每-限光件之幾何結構完全—致，而且在每—區塊 =^斑3幾乎不變形’因此只要透過重整影像，即使該物體表面 =，塊23的大面積區塊相對取騎置產生位移，經該不變形光斑取= 之触光斑3，触光崎影像重紐所得狀光_ 4只會移動 併參考第-C圖及第六A圖，係本發明之另—較佳實 示意圖。如圖所示，本實施例係提供一種不變形光斑= 裝置及其方法，可應麟1撕鼠，财變形光斑取像裝鶴包含 15 200910160 、-限光模组12及—感測器14，應用於該雷射糾之實施方法 ==1G ’該光發㈣1(H_，、⑽靡__對之一 物體表面2 ’並產生至少-散射光⑽，接著執行步驟犯，該至少 =2進入該限光模組12，該限光模組12包含複數限光件，限制該至少一 進人該感卿14之人射視場角，每—限光件產生複數繞射光， …、後執行步驟S14，該些限光件所產生之該些繞射光互相干涉，產 斑’再執行步驟S16，依據該些光斑進行影像重整產生一光斑圖，最後 步驟S18，以該光斑圖為基準，重複步驟S1(^步驟得到另—光斑圖， 並依據原本之該光斑_另—光斑_對，觸該不變形細取像 否相對於該物體表面2產生移動’更進—步可判斷該不變形光斑取像裝= 的移動方向與㈣距離大小，以作為電職標的移動^外設於該 鼠之該不變形光斑取像裝置之結構可如第三c圖，於該物體表面2鱼^ 先模組12 置-前級限光模、组16，如此於執行步驟Μ後，執行轉 S1卜利麟前紐光模組16阻擋經該統投射至該物體表面2所產生之 該至少-散射光102所產生之該二次散射光，減少該❹,m 14之 訊’以提升該些光斑之辨識度。 /w 請-併參考第-C 第六B圖，係本發明之另—較佳實施例之結構示 意圖及其另-流程示賴。如圖所示，本實施例係提供—種不變形光斑取 像裝置及其方法’隨光_係依據具三維變化之該物體表面2而產生， ^ 乂可用於辨識具二維變化之該物體表面2’進而應用於指紋辨識敦置或精 密疋位上，應驗順具三輕化之該物縣面2之實施方法係先執行 S20，該光發射器1〇係發射-光源至與具三維變化之該物體表面2，並 產生至少-散射光1〇2，接著執行步驟S22，該至少一散射光1Q2進入該限 光模組12 ’該限光模組12 &含複數限光件，限制該至少一散射光1〇2進入 該感測器14之人射視場角，每—限光件產生複數繞射光，然後執行步驟 S24 ’該些限光件所產生之該些繞射光互相干涉，產生複數光斑，再執行步 驟S26，依據該些光斑進行影像重整產生一光斑圖，而該感測器14可連接 16 200910160 該之==元二存至少-參考光斑圖’最後執行細8，_ 置所產生該參考光斑圖判斷該不變形光斑取像裝 裝置應用於缺«触取像 内，應用時經由^變」 才曰紋之參考光斑圖建置於該儲存單元 圖比對，以督龄 圖與儲存於該儲存單元之參考光斑 該不變形光斑取二?第另外::辨識具三維賊 12 H-W—、°冓了如第二C圖’於該物體表面與該限光模組 該前二光彳於執行步驟2G後，執行步驟S21，利用 Η之背, A，_感測器 圖之圖之貫施例與該第六β圖之實施例不同在於，本發明之第六A _不變形級取像裝置餘如雷紐鼠或精蚊㈣時，該不 像袭置為可移動的，相對該不變形光斑取像裝置之該物體表面 動。本發明之第六β圖之實施例係不變形光斑取像裝置用於如手 ^却_、智慧卡或三維指紋身份辨識裝置等具三維變化之該物體表面辨 5、〜=維物體表面為可移騎，該不變形光斑取像裝置制定不動的。 由述可知’本發明係提出一種不變形光斑取像裝置及其方法，利用於 該感测H前加裝舰賴組，舰絲组包含複數限光件，該些限光件排 列為-維或二_列’ t該光職射至難體表面產生該 ==触產线些_，進喊_不變形光斑，最後依據t 轉重媽A面積且錢形光_，醇㈣之該光斑· SA φ之一維變化而產生’所以該光斑圖可用於判斷具有三維變化 之物體表面’又_光_具有不變形的特性，所以從產生位移之物體表 面所得到之光賴為不變形，並與產生位移前之触圖_，耻可以清 楚辨識光斑圖的移動進而獲得物體位移的資訊。本發明之不變形光斑取像 200910160 裝置可驗電輯鼠、手料覽器、 三維指紋身份辨 械手臂精蚊赠、麟。 綜上所述，本發明係實為—具有新雛、進步性及可供產業彻者，應 符合我國專利法所規定之專利申請要件級，爰依法提出發明專利申請， 祈鈞局早曰賜准專利，至感為禱。 明香㈣ΐ所述者，僅為本發明之—較佳實施例而已，並翻來限定本發 施之範圍，舉凡依本發明申請專利範圍所述之形狀、構造、特徵及精 斤為之均等變化與修飾，均應包括於本發明之中請專利範圍内。 Ρ 【圖式簡單說明】 Α®.本發明之—較佳實施例之結構示意圖； 二Β圖：本發明之另—較佳實施例之光路徑示意圖； C圖：本發明之另—較佳實施例之結構示意圖； D圖：本發明之另—較佳實施例之結構示意圖； 圖.本發明之另__紐實關之結構示意圖； 本發敗產生二次散縣之示意圖； =圖：本發明之另—較佳實施例之光路徑示意圖； -C圖：本發明之另—較佳實施例之結構示意圖； 四圖：本發明之產生複數光斑之示意圖； 第^圖.本發明之另—較佳實施例之影像重整示意圖； =圖：本發明之另一較佳實施例之流程示意圖；以及 圖.本發明之另-較佳實補之流程示意圖。 【主要元件符號說明】 10光發射器 W光源 1()2散射光 18 200910160 103 散射光 104 二次散射光 12 限光模組 121 光圈 122 成像透鏡 123 成像透鏡 124 擋光片 125 第一光圈 126 第二光圈 14 感測器 141 套筒 16 前級限光模組 161 前級光圈 2 物體表面 21 物體表面 22 物體表面 23 區塊 3 光斑 4 光斑圖Surface Emitting Laser (VCSEL), Edge Emission Laser (EEL), gas beam that is similar to tone, solid laser with high homology, or light-emitting diode that emits narrow-frequency light And the area of the surface 2 of the object illuminated by the light source 1 调整 adjusts the light emitter according to a predetermined area size. The light-limiting module 12 has a plurality of light-limiting members, and the light-receiving members are arranged in a one-dimensional or two-dimensional array. Each of the light-limiting members of the embodiment includes an aperture 121 and an imaging lens 122. The optical sensor 121 and the imaging lens 122 are respectively arranged in a one-dimensional or two-dimensional array, and the sensor 14 is disposed behind the light-limiting module 12, It is a dimensional or two-dimensional sensor, such as: CCD or CMOS. When the light emitter 10 emits the light source 1 to the surface 2 of the object, at least one scattered light 102' s at least one scattering is generated. The characteristics of the light 102 depend on the coarse sugar content of the surface 2 of the object. If the surface 2 of the object is a smooth surface (mirror surface), the scattered light 102 generated by the light source 100 projected onto the surface 2 of the object will be concentrated. To a reflection direction and the same energy as the light source 1; or the 8 200910160 surface 2 of the object is a rough surface (matte surface). After the light source loo is projected onto the surface 2 of the object, the scattered light 102 in each direction is generated. It can be seen from the above that if the surface 2 of the object is rough and has a three-dimensional variation of unevenness, the light source 1〇〇 is projected to generate the at least one scattered light 1〇2, and the at least one scattered light 102 is directed in any direction. Spread, which in turn produces an easily recognizable spot. Conversely, the lower the roughness of the surface 2 of the object, the less the scattering effect is, the less pronounced the scattering effect is when the source 100 is projected onto the surface 2 of the object. In the above, when the light source 100 is projected onto the surface 2 of the object, the at least one scattered light 1 〇 2 is generated, and the at least one scattered light 102 is received by the light limiting module 12, and the light limiting module 12 has the a light-receiving member, the light-receiving members are arranged in a one-dimensional or two-dimensional array, and each of the light-receiving members comprises an aperture 21 and an imaging lens 122. The imaging lens 122 is disposed behind the aperture 121, that is, Between the aperture 121 and the lying n 14 'the light limiting members limit at least the scattered light (10) into the incident field of view of the sensor 14, the magnitude of the incident field of view is determined by the aperture 121 and the imaging lens 122 The distance, and the diameter of the aperture 丨 21 and the imaging lens 122, and the apertures of the apertures 121 cause the at least-scattered light 1G2 to generate a plurality of diffracted lights, and the diffracted lights generate a plurality of spots through the imaging lenses 122. The spot size can be controlled according to the aperture size of the aperture 121, and the light shouting images _ fine|| 14, and then the photo-reconstructed image re-formation produces a large area and a non-deformed spot pattern. Please refer to FIG. 4B , which is a schematic diagram of the optical path of the relationship between the aperture position and the angle of view of the human object, as shown in the above-mentioned embodiment of the first embodiment, the light-limiting members of the light-limiting module include The imaging lens 122 of the array and the apertures 121 of the array, the first β diagram only shows the lens 121 of the imaging lens 122 and the aperture 121 of the apertures 121, and the aperture i2i can be placed on Point G or place at point H. The aperture (2) placed at the H point and the tomographic member composed of the imaging lens 122, the optical aperture ΐ2ι placed at the G point and the optical limiting member formed by the imaging lens will block the optical axis Far scattered light. It can be seen from the present optical diagram that the positions of the apertures (2) between the "Secondary imaging lens 122" and the sensor 14 can control the size of the human field of view. In this case, when the source is projected on the surface 2 of the object 200910160, the two points E and F generate at least the scattered light 1〇2, and the at least one scattered light 1〇2 passes through the imaging lens 122. When the aperture 121 is at the G point, the at least-scattered light 102 generated by causing the light source to be projected at two points e and f can pass through the imaging lens (22, and imaged on the E', F' of the sensor 14. Two points, but the luminous flux of the F' point is greater than the luminous flux of the E' point. If the aperture 121 is set at the defect point, the point F near the optical axis will be imaged by the imaging lens 122, and the sensor 14 is imaged. The F' St, the point farther from the optical axis, cannot be imaged on the H 14 via the imaging lens 122. In this embodiment, the thin film has an aperture stop, and the imaging lens 122 The operation is a field st〇p. In this embodiment, only one of the light-limiting members is used as an example. The light-limiting module 12 of the embodiment has the light-limiting members. The light-limiting members are arranged in a one-dimensional or two-dimensional array. The size and position of the aperture 121 can be appropriately adjusted to simultaneously control the spot size and the effective limit. The at least one scattered light 1 〇 2 enters the incident field of view of the sensor 14. Please refer to the first C diagram, which is a schematic structural view of another preferred embodiment of the present invention. The embodiment of the present invention is different in the embodiment of the present invention. The optical limiting module 12 includes a plurality of optical limiting members. Each of the optical limiting members further includes an imaging lens 122 and an aperture 121. Before the aperture 121, the aperture 121 is disposed between the imaging lens 122 and the sensor 14. See also the first D diagram, which is a schematic structural view of another preferred embodiment of the present invention. The embodiment of the first embodiment is different in that the light-limiting module 12 includes the light-limiting members, each of the light-limiting members is an imaging lens 123, and a light-blocking sheet 124 is disposed around the imaging lens 123. The light-blocking sheet 124 has the function of the aperture 121 of the first A-picture, so that the at least one scattered light 1 〇 2 generates a diffraction effect' to generate the diffracted light, and cooperates with the illumination area of the object surface 2 Limiting the incident angle of view of the at least one scattered light 1〇2 into the sensor μ, and passing The imaging lens 123' is disposed at the center thereof to generate the spot patterns on the sensor 14. Referring to the second figure, a schematic structural view of another preferred embodiment of the present invention is shown. The embodiment of the first embodiment is different in that the light-limiting module 12 of the embodiment includes the light-limiting members each of the light-limiting members comprising an imaging lens 122, a first aperture 125 and a second aperture 126. The imaging lens 122 is disposed between the first aperture 125 and the second aperture 126, and the imaging lens 122 is disposed between the first aperture 126 and the sensor 14 by the optical limiting module 12 The arrangement between the sensors 14 first places the first aperture 125, then the second aperture 126, the imaging lens 122 is placed, and the sensor 14 is placed. When the light emitter 1 emits the light source 100 to the surface 2 of the object to generate the at least one scattered light 1〇2, the first apertures 125 block a portion of the at least one scattered light 102, restricting the at least one scattered light 102 from entering The sensor 14 is configured to re-limit the portion of the at least one scattered light 102 into the sensor 14 after the at least one scattered light 102 passes through the first apertures 125. The diameters of the first apertures 125 and the apertures 126 and the distance between the apertures 126 determine the incident angle of view of the at least one scattered light 102 into the sensor 14, thereby causing an incident field of view. The at least one scattered light 102 generates the diffracted lights, and forms the light spots and is imaged on the sensor 14 through the imaging lenses 122, and then forms a large area and is not deformed according to the spots according to the image reforming. Spot diagram. The arrangement of the imaging lenses 122, the first apertures 125, and the second apertures 126 may be disposed before the first apertures 125 and the second apertures 126. The first aperture 125 and the second aperture 126 are disposed between the imaging lens 122 and the sensor 14 . The imaging lens 122 may also be disposed between the first apertures 125 and the second apertures 126. Please refer to the third diagram, which is a schematic diagram of the secondary scattered light produced by the present invention. As shown in the figure, the difference from the embodiment of the first-B is that the 'each light-limiting member includes the imaging lens 122 and the aperture 121, and a sleeve 141 is added to the sensor 14 because the sensing is performed. The device 14 has the sleeve i4i. The object county 2 is not in the human field of view (4), that is, the non-defective area, and the at least one scattered light 102 is projected onto the inside of the sleeve 141, and the point will generate a second scattered light 104. 'The second reading light (10) can be directed to the point I of the sensor 14 by setting the thin 121 on the (four) point. 'One scattered light 1〇4 if it cannot be effectively removed, the sensor μ will be added. Background noise, unfavorable signal processing. - See Figure 2 for a light path diagram of another preferred embodiment of the present invention. As shown in the figure, the third A ® is different in that the secondary scattered light generated by the at least scattered light 1 ( ) 2 projected to the inside of the sleeve 200910160 141 enters the sensor 14 , thereby causing The sensor 14 generates background noise. Therefore, a front-level light-limiting module 16 is disposed in front of the light-limiting module 12, and the front-level light-limiting module 16 has a plurality of front-level light-limiting members. The light-receiving element is a plurality of pre-level apertures ι61, and is arranged in a one-dimensional or two-dimensional array. In this embodiment, only one of the light-limiting members and one of the front-level light-limiting members are pre-leveled. Light parts are shown. The light-receiving module 16 is disposed between the surface 2 of the object and the light-limiting module 12. The light-receiving members of the light-limiting module 12 include the imaging lenses 122 and the apertures 121. Therefore, the front aperture 161 is disposed between the surface 2 of the object and the imaging lens 122. The aperture 121 is disposed between the imaging lens 122 and the sensor 14 when the light source is projected to the F point and the surface of the surface 2 of the object. The at least one scattered light 102 generated at the point F of the signal area can be directly incident on the sensor 14 through the front aperture 161, the imaging lens 122, and the aperture 121, and is imaged in the non-signal area. The at least one scattered light 1〇2 generated by the I point is blocked by the front aperture 161, and the remaining at least one scattered light 103 passing through the front aperture 161 is projected to the sleeve 14 The sub-scattered light also cannot enter the sensor 14, so that the noise of the scene can be effectively reduced, and the signal-to-noise ratio of the sensor 14 is improved. In this embodiment, the front light-limiting module 16 is disposed in front of the light-limiting module 12 to effectively block the at least one scattered light generated by the object surface 2 projected by the light source to be projected onto another object. The δHai-human scattered light generated by the surface prevents the secondary scattered light from entering the sensor Μ, effectively reducing the background noise of the sensor 14. Please refer to the third C diagram, which is a schematic structural view of another preferred embodiment of the present invention. The difference between the embodiment and the first embodiment is that each of the light-limiting members includes the lens 122 and the aperture 121, and is inserted between the surface of the object and the surface of the image lens 122. The pre-stage aperture 161 ′′ of the array can effectively block the secondary scattered light generated by the at least-scattered light 1G2 generated by the object surface 2 to prevent the secondary scattered light from entering the sense Detector 14. The above-mentioned first to second (the figure is a preferred embodiment of the non-deformed spot image capturing device of the present invention), the non-deformed spot image capturing device mainly has a light emitting H, a light limiting module and a sensor, wherein the light-limiting module includes the light-limiting members, the light-limiting members are arranged in a one-dimensional or two-dimensional array, and the 12 200910160 light-limiting member and the adjacent ones are ploughed on the surface 2 of the object Depending on the wavelength of the light source, the maximum relative optical path difference of each light-limiting component is much smaller than the wavelength of the light source. ί== The light-limited component is imaged in the field. The image is re-formed and the image is re-defined. The spots generated by the module are reformed into a large area and can be applied to a computer mouse, a hand guide, a miscellaneous spot pattern, and a precise positioning of the arm. _ a smart card, three boots __ device or Mechanically, the tablet of the present invention is provided with a rotating shape, a group image, and an image reconstruction to obtain a large area of a non-deformed spot pattern. If the image is taken, the image will be compared with the object table. The f-degree distribution is different from the spot image of the shifting. The non-deformed spot-receiving device "is limited to the angle of the field, axis_new When the surface of the phase of the piece is torn, this small-magnification image in the domain · mouth = too large Lai's called the photo puzzle distribution is also unchanged, the spot image: two but: will be deformed 'however, The relative movement distance is subject to a certain limit, in order to maintain the case: the record of the Wei and the material secrets 4 times the length, the placement of the second Η Η 2, the middle of the 'because of the role of the light-limiting member' For example, ^ 4 'the imaging spot can produce the maximum relative optical path difference before and after the movement. The formula is · A(nL)~^-c〇sz0 {Λ >. YU; the freckle is straight, and d is the non-deformation. The spot image capturing device is opposite to the surface of the object, and the vertical distance of the detector to the surface of the object, θ is the optical axis of the image capturing device and the ridge of the tong. In order to achieve the light lion deformation, the relative silk difference The change 4 must be much smaller than a wavelength, △ (4)) <small pair - the design is completed, δ, _ are fixed = 1 to satisfy the "field spot non-deformation condition, known by (1), allowable The moving distance d will be limited to (4). If the spotting device is applied to a small electronic device, such as: leg 13 20091016 0 and pen S-type computer, etc., it is necessary to reduce the vertical distance (2γ) of the sensor to the surface of the object, at this time the right to satisfy △ (pyrid) <<; 1, can not tolerate a large movement The distance (the illusion, thus limiting the practicality of the spot image capturing device. The present invention proposes a non-deformable spot image capturing device having an array of light-limiting modules and a method thereof, which can satisfy the optical path difference in a small structure size (r) The variation Δ("ζ) is much smaller than the condition of one wavelength, and the surface of the object is detected by a large area, and a large-area non-deformed spot pattern is obtained, and the entire large-area non-deformed spot pattern has no limitation of the moving distance (d). Each independent light-limiting member in the light-limiting module array satisfies Δ(4)^<;1 spot change_distance is L. We let the distance between two adjacent light-limiting members, /, less than the field angle limit, partially overlap the image-taking area of the object surface, and react on the spot pattern, the overlapping part is the incident field of view angle and / <d coffee is not deformed so that the image of the light spot seen by the two light-limiting pieces is 疋-like, and then the light of the two-two-hundred sheets is arranged into a continuous spot pattern. The light-limiting member, when it moves the distance 7', the image-taking area is close to the light-receiving image-taking area, and the light-receiving element is moved before and after, and the area repeatedly seen is divided into two parts, the overlapping part The spot pattern is not deformed. The large-area continuous light of two adjacent two in the light-limiting module is moved in the image capturing device/distance i^ money "moving == 疋 unchanged, then moving / distance, still maintaining the spot image style. During the movement, the edge of the continuous spot pattern continuously disappears, while the other end has the spot of the new image area. The characteristics of this shore-use money K fine-turn device, the technology of the chest _大_触图.This =33=the light spots generated by the light-limiting module of the device, and the large-area spot patterns of the light spots are not deformed by each of the light spots. Referring to the fourth figure, it is a schematic diagram of the present invention for generating a plurality of light spots. For example, H provides a type of non-Gai Guangfeng county, and the financial deformation light wire is like a health module 12, and the light limiting module 12 includes a plurality of light limiting members. In this embodiment, only the light-limiting members are arranged in a dimension array 14 200910160 ^ 2 and a circle 121, and the magnification of the imaging lens U2 is set to Μ, Μ in this example 5, the surface of the object 21 sampled by each of the light-limiting members and the surface of the object 22 sampled by the adjacent light-limiting member The weight 4' is generated when the light is incident on the surface 2 of the body, and the at least one scattering is passed through the light-limiting module 12, and each of the light-limiting members is separated from the image of the sensor, such as the ^ The surface of the body surface Ai is imaged on the surface of A1, and the surface of the object is imaged on the surface of the object. The surface of the surface of the object is imaged on C1, the surface. Although the surface of the A1 is partially overlapped with the surface of the β1 surface, the surface of the β surface is partially overlapped. Partially overlapping with the Cl surface, but due to the function of the light limiting member and the imaging magnification, A1, T, and t cr S are independently separated, so the device of the present invention can effectively divide the surface 2 of the object to the plurality of imaging regions. Further, the front light-receiving module 16 is disposed in front of the light-limiting module 12 - the light source is projected on the surface 2 of the object, and the generated light is generated by the at least the scattered light (10). The signal-to-noise ratio of the thief. The above method can be a two-dimensional array of light-limiting modules. Please Fig. 5 is another embodiment of the present invention. The image of the preferred embodiment is fine. Figure/right Qiutian object surface 2 Divided into a plurality of blocks 23, each zone machine 23 and adjacent blocks = 卩 (4) 'weaving butterfly (four) tilting light image _ clock spot 3, the spots 3 are mixed with the sensor is separated, wherein the two parts secret (four) overlapping parts ^ like 2 times 'such as blocks 2, 3, 4, 5, etc. 'some blocks 23 are repeated Take the image 3 times, such as block (1) & 岐 岐 岐 岐 岐 岐 岐 岐 岐 岐 岐 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该The geometry of each of the light-limiting members in the light-limiting module is completely uniform, and is hardly deformed in each block = ^ spot 3, so as long as the image is reformed, even if the surface of the object = a large area of the block 23 The block is displaced relative to the riding position, and the light spot 3 of the non-deformed spot is taken, and the light _ 4 of the light-changing image is only moved and refers to the first-C figure and the sixth-A picture, which is the present invention. Another - a better schematic. As shown in the figure, the embodiment provides a non-deformation spot=device and a method thereof, and the lining 1 tortoise, the financial deformation spot-like image loading crane includes 15 200910160, the light-limiting module 12 and the sensor 14 Applying the method of laser correction ==1G 'The light (4) 1 (H_,, (10) 靡__ pairs an object surface 2' and generates at least - scattered light (10), and then performs the step, which is at least = 2 Entering the light-limiting module 12, the light-limiting module 12 includes a plurality of light-limiting members, which limit the angle of the field of view of the at least one person entering the person, and each of the light-limiting members generates a plurality of diffracted lights, ... Step S14, the diffracted lights generated by the light-receiving members interfere with each other, and the spot is generated, and step S16 is performed, and image reconstruction is performed according to the spots to generate a spot pattern. Finally, step S18 is based on the spot pattern. , repeating step S1 (^ step to obtain another-spot map, and according to the original spot _ another - spot _ pair, touch the non-deformed fine take-up image relative to the surface of the object 2 to move more steps can be judged The non-deformed spot takes the moving direction of the image mount and (4) the distance to serve as the electric job. The structure of the non-deformable spot image capturing device of the mouse can be as shown in the third c-picture, on the surface of the object 2, the first module 12 is set to the front-end optical mode, the group 16 is thus executed. After the step, the S1 Bu Lilin front neon module 16 blocks the secondary scattered light generated by the at least-scattered light 102 generated by the system to be projected onto the surface 2 of the object, thereby reducing the ❹, m 14 'to enhance the recognition of the spots. /w Please - and refer to the -C sixth figure B, is a structural schematic diagram of another preferred embodiment of the present invention and its other process flow. As shown in the figure, The present embodiment provides a non-deformable spot image capturing device and a method thereof, which are generated according to the surface 2 of the object having a three-dimensional variation, and 乂 can be used to identify the surface 2' of the object having a two-dimensional variation and then apply In the fingerprint identification or precision clamping position, the implementation method for verifying the lightening of the object county 2 is performed first, and the light emitter 1 emits a light source to the surface of the object having a three-dimensional change. 2, and generate at least - scattered light 1 〇 2, and then perform step S22, the at least one scattered light 1Q2 Into the light-limiting module 12', the light-limiting module 12 & includes a plurality of light-limiting members, limiting the angle of incidence of the at least one scattered light 1〇2 into the sensor 14, and each light-limiting member is generated The plurality of diffracted lights are then subjected to step S24. The diffracted lights generated by the light-receiving members interfere with each other to generate a plurality of spots, and then step S26 is performed, and image reconstruction is performed according to the spots to generate a spot pattern, and the sensing is performed. The device 14 can be connected to 16 200910160. The == element 2 is stored at least - the reference spot pattern 'final execution detail 8, _ is generated to generate the reference spot pattern to determine that the non-deformed spot image capturing device is applied to the missing «touch image, When the application is applied, the reference spot pattern of the ridge pattern is built in the comparison of the storage unit map, and the non-deformed spot is taken as the reference spot and the reference spot stored in the storage unit. The second:: The thief 12 HW-, ° 冓 as shown in the second C picture 'on the surface of the object and the light-limiting module, the first two lights after performing step 2G, step S21 is performed, using the back of the ,, A, _ sensor The difference between the embodiment of the figure and the embodiment of the sixth figure is that the present invention When the sixth A _ non-deformation level image capturing device of the Ming dynasty or the mosquito (4) is used, the image is not movable, and the surface of the object is moved relative to the non-deformed spot image capturing device. The embodiment of the sixth beta image of the present invention is a non-deformable spot image capturing device for recognizing the surface of the object having three-dimensional changes such as a hand, a smart card or a three-dimensional fingerprint identification device, and the surface of the object is The bicycle can be moved, and the non-deformable spot image capturing device is fixed. It can be seen from the above that the present invention provides a non-deformation spot image capturing device and a method thereof, which are used to install a ship-fronting group before the sensing H, and the ship group includes a plurality of light-limiting members, and the light-limiting members are arranged in a dimension. Or two _ column 't the light job to the difficult body surface to produce the == touch production line some _, into the shouting _ no deformation spot, and finally according to t to transfer the mother A area and money shape light _, alcohol (four) of the spot One dimension of SA φ changes to produce 'so that the speckle pattern can be used to judge the surface of an object having three-dimensional changes' and the _light_ has no deformation characteristics, so the light obtained from the surface of the displaced object is not deformed, and With the touch map before the displacement, the shame can clearly identify the movement of the spot map and obtain the information of the displacement of the object. The non-deformed spot image of the present invention is 200910160. The device can be used to check the electric mouse, the hand material viewer, the three-dimensional fingerprint identification arm, and the mosquito net gift. To sum up, the present invention is a new breed, progressive and available for industry, and should meet the requirements of the patent application requirements of the Patent Law of China, and file an invention patent application according to law. Quasi-patent, to the feeling of prayer. The present invention is only the preferred embodiment of the present invention, and is intended to limit the scope of the present application, and the shape, structure, characteristics, and fineness of the invention as described in the scope of the present application are equally varied. And modifications are intended to be included in the scope of the invention. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 2 is a schematic view showing the structure of a preferred embodiment of the present invention; FIG. 2 is a schematic view showing a light path of another preferred embodiment of the present invention; BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic view showing the structure of another preferred embodiment of the present invention; FIG. 3 is a schematic view showing the structure of the other __Newsguan; A schematic diagram of a light path of another preferred embodiment of the present invention; -C: a schematic structural view of another preferred embodiment of the present invention; and four drawings: a schematic diagram of generating a complex light spot of the present invention; The image reorganization diagram of the preferred embodiment; = diagram: a schematic flowchart of another preferred embodiment of the present invention; and a schematic diagram of another embodiment of the present invention. [Main component symbol description] 10 light emitter W light source 1 () 2 scattered light 18 200910160 103 scattered light 104 secondary scattered light 12 light limiting module 121 aperture 122 imaging lens 123 imaging lens 124 light blocking plate 125 first aperture 126 Second aperture 14 Sensor 141 Sleeve 16 Pre-light limit module 161 Front aperture 2 Object surface 21 Object surface 22 Object surface 23 Block 3 Spot 4 Spot pattern