TWI339262B - Testing system and method for eccentricity of a lens - Google Patents
Testing system and method for eccentricity of a lens Download PDFInfo
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1339262 六 [0001] [0002] [0003] [0004] 095149818 099年09月28日修正替换頁 發明說明： 【發明所屬之技術領域】 本發明涉及一種光學檢測製程，尤其涉及一種鏡片偏心 檢測系統及方法。 【先前技術】 近年來，由於數位資訊產業暴發性之成長，小尺寸光學 透鏡如讀寫鏡頭、數位相機、手機相機與光通訊等相關 元件之應用需求大幅增加。軸對稱光學透鏡於製作或系 統組裝時，光軸與旋轉對稱軸若不重合，將產生偏心誤 差。偏心誤差對於小尺寸光學透鏡之成像品質具有關鍵 性之影響，因此，對於透鏡及透鏡元件偏心誤差之檢測 評估，係製作高精度光學透襄:元件之重要步:驟之一。 偏心誤差檢測方法通常包括機械測量法與光學測量法。 光學測量法又分為穿透式量測法與反射式量測法，其測 量精度較機械測量法高，應用亦更為廣泛◊穿透式量測 法為由一準直儀投射出十字標線平行光束，經待測透鏡 或透鏡組聚焦於某焦點，再由另一自準直儀配合適當物 鏡將此焦點導入目鏡或CCD(Charge Coupled Devices ，電荷耦合元件）觀察反射回來之十字線，若光學系統光 轴偏離機械旋轉軸，則由目鏡或螢幕上觀察到之十字線 會繞著某中心旋轉，旋轉半徑經幾何換算後即為透鏡偏 心量。通常來說，先前技術之偏心檢測方法通常以透鏡 或透鏡組之幾何中心軸為旋轉軸，故換算出之透鏡偏心 量為相對於測量基準轴即透鏡幾何中心軸之偏心狀況。 惟，隨著模造玻璃成型與射出成型等相關模具產業之蓬 表單編號A0101 第3頁/共17頁 0993346864-0 1339262 I η λ η Λγ η ι~» α **% η ι— 乙。口 勃發展，射出成型鏡片得到越來越廣泛之應用，然該等 射出成型鏡片通常具有毛邊，經澆口剪斷製程後復具有 缺口，故其幾何中心軸不易精確確定，易於產生誤差， 導致偏心測量結果不夠準確。其次，鏡片通常具有中心 部與週邊部，以鏡片整體之幾何中心軸旋轉計算得出之 偏心量包括週邊部之誤差，不能真實反映起光學作用之 中心部之偏心情況。BACKGROUND OF THE INVENTION 1. Field of the Invention This invention relates to an optical inspection process, and more particularly to a lens eccentricity detection system and method. [Prior Art] In recent years, due to the explosive growth of the digital information industry, the demand for applications of small-sized optical lenses such as reading and writing lenses, digital cameras, mobile phone cameras, and optical communication has increased significantly. When the axisymmetric optical lens is assembled or assembled in the system, if the optical axis does not coincide with the axis of rotational symmetry, an eccentricity error will occur. The eccentricity error has a critical influence on the imaging quality of small-sized optical lenses. Therefore, the detection and evaluation of eccentricity errors of lenses and lens elements is one of the important steps in the fabrication of high-precision optical lenses. The eccentricity error detection method usually includes mechanical measurement and optical measurement. Optical measurement method is divided into transmissive measurement method and reflective measurement method. Its measurement accuracy is higher than that of mechanical measurement method, and its application is more extensive. Penetration measurement method is to project the cross mark by a collimator. A parallel beam of light is focused on a focus by the lens or lens group to be tested, and another focus is introduced into the eyepiece or CCD (Charge Coupled Devices) by another self-collimator and a suitable objective lens to observe the reflected crosshair. If the optical axis of the optical system deviates from the mechanical rotation axis, the crosshair observed by the eyepiece or the screen will rotate around a certain center, and the radius of rotation will be the lens eccentricity after geometric conversion. In general, the eccentricity detection method of the prior art generally uses the geometric central axis of the lens or lens group as the rotation axis, so that the converted lens eccentricity is an eccentricity with respect to the measurement reference axis, that is, the geometric center axis of the lens. However, with the mold industry such as molding glass forming and injection molding, Form No. A0101 Page 3 of 17 0993346864-0 1339262 I η λ η Λγ η ι~» α **% η ι—B. The development of the boom, injection molding lenses have been used more and more widely, but these injection molding lenses usually have burrs, and there are gaps after the gate cutting process, so the geometric central axis is not easy to determine accurately, and it is easy to produce errors, resulting in The eccentricity measurement results are not accurate enough. Secondly, the lens usually has a central portion and a peripheral portion, and the eccentricity calculated by the rotation of the geometric central axis of the lens includes the error of the peripheral portion, and cannot truly reflect the eccentricity of the central portion of the optical action.
[0005] 有鑑於此，有必要提供一種測量精度較高，能準確反映 待測鏡片或鏡片組之偏心情況之偏心檢測系統及方法。 【發明内容】 [0006] 以下，將以實施例說明能準·確应条待璿測繞ΐ片或鏡片組 之偏心情況之偏心檢測系統二 [0007] 一種鏡片偏心檢測系統，用於對待檢測鏡片進行偏心檢 測，所述待檢測鏡片包括主體部及圍繞主體部之週邊部 ，所述偏心檢測系統包括承載裝置、驅動裝置與檢測裝 置，所述承載裝置用於固持待檢測鏡片，所述驅動裝置 用於帶動承載裝置旋轉，所述檢測裝置用於對待檢測鏡 片進行偏心檢測，所述承載裝置具有與待檢測鏡片之週 邊部内徑相配合之固持部，該固持部之外徑與所述週邊 部之内徑相等。 [0008] 一種鏡片偏心檢測系統，用於對待檢測鏡片進行偏心檢 測，所述待檢測鏡片包括主體部及圍繞主體部之週邊部 ，所述偏心檢測系統包括承載裝置、驅動裝置與檢測裝 置，所述承載裝置具有一用於固持待檢測鏡片之固持部 ，所述驅動裝置用於帶動承載裝置旋轉，所述檢測裝置 095149818 表單編號 Α0101 第 4 頁/共 17 頁 0993346864-0 [_9] [_9][0005] In view of the above, it is necessary to provide an eccentricity detecting system and method that have high measurement accuracy and can accurately reflect the eccentricity of a lens or a lens group to be tested. SUMMARY OF THE INVENTION [0006] Hereinafter, an eccentricity detecting system capable of accurately determining the eccentricity of a winding piece or a lens group according to an embodiment will be described by way of example [0007] A lens eccentricity detecting system for detecting The lens is subjected to eccentricity detection, the lens to be detected includes a main body portion and a peripheral portion surrounding the main body portion, and the eccentricity detecting system includes a carrying device, a driving device and a detecting device, wherein the carrying device is for holding a lens to be detected, the driving The device is configured to drive the rotation of the carrying device, and the detecting device is configured to perform eccentricity detection on the lens to be inspected, the carrying device has a holding portion matched with an inner diameter of a peripheral portion of the lens to be inspected, an outer diameter of the holding portion and the periphery The inner diameter of the part is equal. [0008] A lens eccentricity detecting system for performing eccentricity detection on a lens to be detected, the lens to be detected includes a main body portion and a peripheral portion surrounding the main body portion, and the eccentricity detecting system includes a carrying device, a driving device and a detecting device, The carrying device has a holding portion for holding a lens to be inspected, and the driving device is for driving the carrying device to rotate, the detecting device 095149818 Form No. 1010101 Page 4 of 17 0993346864-0 [_9] [_9]
[0010][0010]
099年09月28日孩正替換頁 用於對待檢測鏡片進行偏心檢測，所述承栽裝置之固持 '^之外徑與所述週邊部之内徑相對應。 種鏡片偏心檢測方法’包括步驟：提供一待檢測鏡片 與―偏心檢測系統，所述待檢測鏡片包括主體部與圍繞 主體邹之週邊部，所述偏心檢測系統包括承載裝置、驅 動裝置與檢測裝置，所述承載裝置具有與待檢測鏡片之 避邊部内徑相配合之固持部，該固持部之外徑與所述週 邊邹之内徑相等；將待檢測鏡片固設於承載裝置固持部 ’並使主體部之t心軸與承栽裝置之中心軸重合；驅動 敦置帶動承載裝置及放置於其上之待檢測鏡片沿主體部 之中心軸進行旋轉；檢測裝_喪轉之鏡芥弹行偏心檢 剩，獲得鏡片偏心狀況。V: · 〜種鏡片偏心檢測方法，包括步驟：提供一待檢測鏡片 與~偏心檢測系統，所述待檢測鏡片包括主體部與圍繞 主體部之週邊部，所述偏心、檢判:系統包掉承載裝置、驅 勤裝置與檢測裝置，所述物_具有用於固持待檢測 鏡片之固持部，制持部之外福㈣述週邊部之内徑相 对應；將待制鏡片放置於承餘置轉部，並使主體 部之中心轴與承載裝置之中心軸重合；驅動裝置帶動承 栽聚置及放置於其上之待檢測鏡片沿承栽裝置中心袖進 行旋轉；檢測裝置對待檢測鏡片進行偏心檢測，獲得鏡 片偏心狀況。 [0011] 相敉於无珂技術 095149818 、凡久々次將待檢測鏡片之週邊 部卡固於承餘置_料部，從蚊得待㈣鏡片之 旋轉軸與待檢雜h體部之中叫重合 表尊编號麵1 第5頁/共171 0993346864 1339252 偏^量為主體部相對於旋轉軸之偏心情況，不包括週邊 15之灰差，檢咧結果較為準確。 【實施方式] [0012]September 28, 099 Child Replacement Page For the eccentricity detection of the test lens, the outer diameter of the holding device corresponds to the inner diameter of the peripheral portion. The lens eccentricity detecting method includes the steps of: providing a to-be-detected lens and an eccentricity detecting system, the to-be-detected lens comprising a main body portion and a peripheral portion surrounding the main body, the eccentricity detecting system comprising a carrying device, a driving device and a detecting device The carrying device has a holding portion that cooperates with the inner diameter of the edge portion of the lens to be inspected, and the outer diameter of the holding portion is equal to the inner diameter of the peripheral portion; the lens to be inspected is fixed to the holding portion of the carrying device and Aligning the t-axis of the main body with the central axis of the loading device; driving the bearing device and the lens to be detected placed thereon to rotate along the central axis of the main body; detecting the mirror The eccentricity is checked and the lens eccentricity is obtained. V: · a lens eccentricity detecting method, comprising the steps of: providing a to-be-detected lens and an eccentricity detecting system, the to-be-detected lens comprising a main body portion and a peripheral portion surrounding the main body portion, the eccentricity, the judgment: the system is wrapped off a carrying device, a driving device and a detecting device, wherein the object has a holding portion for holding the lens to be inspected, and the inner portion of the peripheral portion of the holding portion is corresponding to the inner portion of the holding portion; a rotating portion, and the central axis of the main body portion coincides with a central axis of the carrying device; the driving device drives the lens to be detected and placed thereon to rotate along the center sleeve of the loading device; the detecting device performs eccentricity on the detecting lens Detection, obtaining lens eccentricity. [0011] In contrast to the flawless technology 095149818, the peripheral part of the lens to be inspected is stuck in the rest of the material section, and the mosquito is waiting for (four) the rotation axis of the lens and the body to be inspected. Coincidence Table No. 1 Page 5 / Total 171 0993346864 1339252 The deviation is the eccentricity of the main part relative to the rotation axis, excluding the gray difference of the periphery 15, and the inspection result is more accurate. Embodiments [0012]
將、”σ合附圖，對本技術方案之實施方式作進一步之 詳細說明。 [0013] 請參閱 入 圖1及圆2 ,本實施方式之待檢測鏡片100為一内-:片包括主體部110與週邊部120。所述主體部 I為鏡片中起光學作用之部分，其凹或凸之形狀視具體 而求之發散或會聚之光學性能而定。該週邊部12〇為圓環 肤，ih m ,, .一The embodiment of the present technical solution will be further described in detail with reference to the accompanying drawings. [0013] Referring to FIG. 1 and the circle 2, the lens 100 to be inspected in this embodiment is an inner-: piece including the main body portion 110. And the peripheral portion 120. The main body portion I is an optically active portion of the lens, and the shape of the concave or convex shape depends on the optical properties of the specific divergence or convergence. The peripheral portion 12 is a toroidal skin, ih m ,, .
马♦ <元竽*r王貝&叩疋w热π A w I圍並連轾主體部110，主要作用為放置、支撐相鄰 [0014] 請參閱圖 f Λ：'<· ..， .·： t：,. ..., q .¾:龜.:十渾 、 ，本實施方式提^系統200， :士待k测鞔片1〇〇進行偏心檢測。該偏心檢測系統 匕括承栽骏置210、驅動裝置220及檢測裝置230。所 述氣栽裝置21〇用於固持待檢測鏡片叫，所述驅動裝置 220用於帶動承栽裝置210旋轉，所述檢測裝置230用於 對待檢測鏡片100進行.Ma ♦ < Yuan 竽 * r Wang Bei & 叩疋 w hot π A w I and connected to the main body 110, the main role is to place, support adjacent [0014] See Figure f Λ: '<· . ., ..: t:,. ..., q .3⁄4: Turtle.: Ten Commandments, This embodiment provides a system 200, and the eccentricity detection is performed. The eccentricity detecting system includes a carrier 210, a driving device 220, and a detecting device 230. The air bearing device 21 is for holding a lens to be detected, and the driving device 220 is for driving the bearing device 210 to rotate. The detecting device 230 is used for the lens 100 to be inspected.
[0015] 所述承載裝置21 Q可以具有與待檢測鏡片_之〆個表面 形狀相同之承載面以實現兩者之緊密嵌合，承載裝置21〇 亦可以具有嵌槽i_X嵌置該待檢測鏡片⑽。本實施例中， 所述承載裝置210包括一固持部2"與一開設於承載狀置 210中心之光通孔212。該固持部2H為圓環狀體，其外 徑D與待檢測鏡月100之週邊部120之内徑d (參圖2)相 同。承載裝置21G之光通孔212之直徑d，與待檢測鏡片 095149818 0993346864-0 :^部12^；^，以不影響檢測光束之射 1339262 099年09月28日修正替换頁 入、射出為宜。通常來說，光通孔212之直徑D’可小於 主體部120之直徑。 [0016] 所述驅動裝置220可藉由動力裝置實現旋轉，並可藉由皮 . 帶、齒輪或其他方式與承載裝置210相連，故，驅動裝置 220之旋轉可帶動承載裝置210進行同速或不同速地旋轉 。本實施例中，所述驅動裝置220為一圓柱體，與承載裝 置210之間以皮帶221相連，因此，當驅動裝置220旋轉 時先帶動皮帶221運動，皮帶221之運動再帶動承載裝置 ® 210繞中心軸旋轉。 [0017] 所述檢測裝置230包括用於對待檢測鏡片100進行偏心狀[0015] The carrying device 21 Q may have the same bearing surface as the surface of the lens to be detected to achieve a close fitting of the two, and the carrying device 21 may also have a recess i_X to embed the lens to be inspected. (10). In this embodiment, the carrying device 210 includes a holding portion 2" and a light through hole 212 opened in the center of the carrying portion 210. The holding portion 2H is an annular body whose outer diameter D is the same as the inner diameter d (see Fig. 2) of the peripheral portion 120 of the mirror month 100 to be detected. The diameter d of the optical through hole 212 of the carrying device 21G, and the lens 095149818 0993346864-0 : ^ 12 ^ ^ ^ of the to-be-detected lens, so as not to affect the detection beam of the light 1339226 099 September 28, the replacement page is inserted, the injection is appropriate . Generally, the diameter D' of the light through hole 212 may be smaller than the diameter of the body portion 120. [0016] The driving device 220 can be rotated by the power device, and can be connected to the carrier device 210 by a belt, a gear or the like. Therefore, the rotation of the driving device 220 can drive the carrier device 210 to perform the same speed or Rotate at different speeds. In this embodiment, the driving device 220 is a cylinder and is connected with the carrying device 210 by a belt 221. Therefore, when the driving device 220 rotates, the belt 221 is driven to move, and the movement of the belt 221 drives the carrying device® 210. Rotate around the central axis. [0017] The detecting device 230 includes an eccentric shape for the lens 100 to be detected
• ·. -V 況檢測之顯微鏡單元2 31與用'於顧示待檢測鏡片1 0 0之偏 心狀況之顯示器232。所述顯‘微鏡單元231與承載裝置 210同軸設置，並與顯示器232連結。該顯微鏡單元231 可以為穿透式、反射式或折射式顯微鏡。本實施例中， 所述顯微鏡單元231為穿透式顯微鏡，依光軸方向依次包 φ 括光源233、標示有投影標記24.1之投影鏡片234、第一 透鏡235、第二透鏡236、標示有校正標記242之校正鏡 片237及第三透鏡238。光源233用於發出檢測光束，依 測量精度要求不同可選用普通光源或雷射光源。通常來 說，普通光源之測量精度為10秒，雷射光源之測量精度 為5秒。光源233與將要放置待檢測鏡片100之承載裝置 21 0之間沿檢測光束方向依次設置有投影鏡片234與第一 透鏡235，投影鏡片234具有十字形之投影標記241，第 一透鏡235可發散光束。第二透鏡236、校正鏡片237與 第三透鏡238沿檢測光束方向依次設置於承載裝置210上 095149818 表單編號A0101 第7頁/共17頁 0993346864-0 1339262 [0018] [0019] [0020] [0021] [0022] [0023] [0024] 095149818 I uj月2G日孩正替接頁 側’第二透鏡236可會聚光束，校正鏡片237具有十字形 之校正標記242，第三透鏡238用於發散光束。 所述顯示器232設置於顯微鏡單元231之上側，可顯示檢 測光束經過複數個光學元件後形成之投影標記241及校正 標記242之像，供操作者觀察、記錄該二標記之位置。 當然’ 5亥檢測裝置2 3 0可進一步包括一移動平臺與一角度 感測器。移動平臺用於固設承載裝置21〇與驅動裝置22〇 ，使承栽裝置210帶動放置於其上之鏡片根據檢測需要移 | 入或移出預定檢測位置。角度感測器用於感測承載裝置 210之旋轉角度，則操作者可更韦一才得出旋轉至某一具 體角度時之該二標記之具體窗^|§琢 下面將逐錢明制本_ 心檢測系 統之檢測方法。 第一步，提供待檢測鏡片100與偏心檢測系統2〇〇。 提供如圖1、圖2所示之待檢測鏡片100與如圖3所示之鏡 < 片偏心檢測系統2〇〇。 第二步，將待檢測鏡片100設置於承載裝置21〇。 凊參閱圖4，將待檢測鏡Μ 00放置於承載裝置210時，由 於週邊部120之内徑d與承載裝置21()固持部211之外徑D 相同，故週邊部12〇可恰好卡固於固持部211外部，主體 ，110則固設於承載裝置21〇之上。由此，藉由卡固週邊 。1$120之内控可將待檢測鏡片1咖設於承栽裝置210， 並確保主趙部11〇之中心輪與承載裝置21〇之中心袖重合 表單編號A0101 0993346864-0 1339262 099年09月28日庚正替換頁 剛第三步，驅動裝置220帶動承載裝置210及放置於其上之 待檢測鏡片1 〇 0進行旋轉^ • 剛由於承栽裝置21。之中心軸與主體部11〇之中心軸重合， 故驅動裝置帶動承載裝置210與待檢測鏡片100以主體部 110之中心袖旋轉。 闕第四步，檢測裝置23〇對待檢測鏡片剛進行偏心檢測， Φ 獲得該鏡片之偏心狀況。 闕I體地說，統233發出之可見光束或雷射光束依次經過 帶有投影標記241之投影鏡擁、《一，_235、待檢 測鏡片100、第二透鏡236 與_以2之校正鏡 片237與第三透鏡238，最後光束形成之投影標記⑷盘 校正標記242之像顯示於顯示器奶1中，投影鏡片” 234之十字形投影標記241經過待檢測鏡片㈣成像再顯 *於顯示器232,校正鏡片:237之十字形校正標記⑷未 經待檢測鏡片_成像顯示於顯示器232，故操作者 該二標記之像之位置即可得出待檢測鏡片刚之偏心 。若待檢測鏡片1GG偏心，顯示器饥將顯示出投 241之像以某一半徑圍繞校正標記如之像旋轉，根;旋 轉半位，即可換算出待檢測鏡片刚之偏心量。本 中，所述偏心量為主體部110相對旋轉軸即主體部11〇中列 心轴之偏心量。 _ i述系統及方法之優點在於：待檢測鏡片係以主體部中 心抽為轉抽旋轉之情況下進行偏心檢測，獲得之偏:量 095149818 表軍編號腦丨 丨9頁/共17頁 0993346864-0 [0030]1339262 [0031] [0032] [0033] [0034] [0035] [0036] [0037] [0038] [0039] [0040] [0041] I 099年0% 23 5 g正替条頁~] 為待檢測鏡片之主體部相對旋轉軸之偏心量，不包括週 邊部之誤差，檢測結果較為準確。 综上所述，本發明確已符合發明專利之要件，爰依法提 出專利申請。惟，以上所述者僅為本發明之較佳實施方 式，本發明之範圍並不以上述實施方式為限，舉凡熟習 本案技藝之人士援依本發明之精神所作之等效修飾或變 化，皆應涵蓋於以下申請專利範圍内。 【圖式簡單說明】 g 圖1係本技術方案實施方式提供之待檢測鏡片示意圖。• The microscope unit 2 31 for the -V condition detection and the display 232 for the eccentricity of the lens 100 to be detected. The display micro-mirror unit 231 is disposed coaxially with the carrier device 210 and coupled to the display 232. The microscope unit 231 can be a transmissive, reflective or refractive microscope. In this embodiment, the microscope unit 231 is a transmissive microscope, and includes a light source 233, a projection lens 234 marked with a projection mark 24.1, a first lens 235, and a second lens 236, which are marked with correction, in the direction of the optical axis. The correcting lens 237 and the third lens 238 of the mark 242. The light source 233 is used to emit a detection beam, and an ordinary light source or a laser light source may be selected depending on the measurement accuracy requirement. Generally speaking, the measurement accuracy of an ordinary light source is 10 seconds, and the measurement accuracy of a laser light source is 5 seconds. A projection lens 234 and a first lens 235 are disposed between the light source 233 and the carrier device 21 0 where the lens 100 to be inspected is to be placed, along the direction of the detection beam. The projection lens 234 has a cross-shaped projection mark 241, and the first lens 235 can divergence the beam. . The second lens 236, the correcting lens 237 and the third lens 238 are sequentially disposed on the carrying device 210 along the direction of the detecting beam. 095149818 Form No. A0101 Page 7 / Total 17 Page 0993346864-0 1339262 [0018] [0020] [0012] [0024] [0024] [0024] [0024] 095149818 I uj month 2G day child replacement page side 'second lens 236 can converge the beam, correction lens 237 has a cross-shaped correction mark 242, third lens 238 for diverging the beam . The display 232 is disposed on the upper side of the microscope unit 231, and can display an image of the projection mark 241 and the correction mark 242 formed after the detection beam passes through the plurality of optical elements, for the operator to observe and record the position of the two marks. Of course, the 5H detection device 230 can further include a mobile platform and an angle sensor. The mobile platform is used for fixing the carrying device 21〇 and the driving device 22〇, so that the lens placed on the loading device 210 is moved into or out of the predetermined detecting position according to the detection requirement. The angle sensor is used to sense the rotation angle of the carrying device 210, and the operator can obtain the specific window of the two marks when rotating to a specific angle. The detection method of the heart detection system. In the first step, the lens 100 to be inspected and the eccentricity detecting system 2 are provided. A lens 100 to be inspected as shown in Figs. 1 and 2 and a mirror & sheet eccentricity detecting system 2 shown in Fig. 3 are provided. In the second step, the lens 100 to be inspected is placed on the carrying device 21A. Referring to FIG. 4, when the mirror Μ 00 to be inspected is placed on the carrying device 210, since the inner diameter d of the peripheral portion 120 is the same as the outer diameter D of the retaining portion 211 of the carrying device 21, the peripheral portion 12 can be rigidly clamped. Outside the holding portion 211, the main body 110 is fixed on the carrying device 21A. Thus, by clamping the perimeter. The internal control of 1$120 can set the lens to be inspected to the loading device 210, and ensure that the center wheel of the main Zhao 11 is coincident with the center sleeve of the carrying device 21〇 Form No. A0101 0993346864-0 1339262 September 28, 2008 Just after the third step of the Geng positive replacement page, the driving device 220 drives the carrying device 210 and the lens 1 to be detected on the rotating device 1 to rotate. The central axis coincides with the central axis of the main body portion 11A, so that the driving device drives the carrier device 210 and the lens 100 to be detected to rotate with the center sleeve of the main body portion 110. In the fourth step, the detecting device 23 performs the eccentricity detection on the detecting lens, and Φ obtains the eccentricity of the lens. In other words, the visible beam or the laser beam emitted by the system 233 passes through the projection mirror with the projection mark 241, "1, _235, the lens 100 to be inspected, the second lens 236 and the correction lens 237 of _2". With the third lens 238, the projection mark formed by the last beam (4) the image of the disc correction mark 242 is displayed in the display milk 1, and the cross-shaped projection mark 241 of the projection lens "234" is imaged by the to-be-detected lens (4) and displayed on the display 232, corrected. Lens: 237 cross-shaped correction mark (4) without the lens to be detected _ imaging is displayed on the display 232, so the position of the image of the two marks can be obtained by the operator to obtain the eccentricity of the lens to be detected. If the lens to be detected is eccentric, the display The hunger will show that the image of the cast 241 rotates around the correction mark with a certain radius, and rotates the half position to convert the eccentric amount of the lens to be detected. In the present case, the eccentric amount is relative to the main body 110. The rotating shaft is the eccentric amount of the central mandrel 11 。. The advantage of the system and method is that the lens to be detected is eccentrically detected by taking the center of the main body as a rotary rotation. The deviation: the amount of 095149818, the number of the cerebral palsy, 9 pages, a total of 17 pages, 0993346864-0 [0030] 1339262 [0033] [0034] [0035] [0036] [0038] [0039] [0040] [0041] I 099 0% 23 5 g positive strips ~] is the eccentricity of the main body relative to the axis of rotation of the lens to be inspected, excluding the error of the peripheral portion, the detection result is more accurate. As described above, the present invention has indeed met the requirements of the invention patent, and the patent application is filed according to law. However, the above description is only a preferred embodiment of the present invention, and the scope of the present invention is not limited to the above embodiment, and the present invention is familiar to the case. The equivalent modifications or variations of the skilled person in the spirit of the present invention are intended to be included in the scope of the following claims. [FIG. 1] FIG. 1 is a schematic view of a lens to be inspected provided by an embodiment of the present technical solution.
圖2係本技術方案實施方式提供之:待撿，鄉鏡.片沿圖1中Π-Π方向之剖視圖。 VFIG. 2 is a cross-sectional view of the embodiment of the present technical solution taken along the Π-Π direction of FIG. 1 . V
."I 圖3係本技術方案實施方式揭：&之篇"片Λ怎檢測系統示意 圖。 圖4係本技術方案實施方式之鏡片偏心檢測狀態示意圖。 【主要元件符號說明】 100:待檢測鏡片 110 :主體部 120 :週邊部 200 :偏心檢測系統 210 :固持裝置 211 :固持部 212 :光通孔."I Figure 3 is an embodiment of the technical solution: & FIG. 4 is a schematic diagram of a lens eccentricity detection state according to an embodiment of the present technical solution. [Description of main component symbols] 100: lens to be inspected 110: main body portion 120: peripheral portion 200: eccentricity detecting system 210: holding device 211: holding portion 212: optical through hole
095149818 表單編號Α0101 第10頁/共17頁 0993346864-0 1339262 099年09月28日核正替換頁 [0042] 220 :驅動裝置 [0043] 221 :皮帶 [0044] 230 :檢測裝置 [0045] 231 :顯微鏡單元 [0046] 232 :顯示器 [0047] 2 3 3 :光源 • [0048] 234 :投影鏡片 [0049] 235 :第一透鏡 [0050] 236:第二透鏡 " [0051] 237 :校正鏡片 [0052] 238 :第三透鏡 [0053] 241 :投影標記 . _ [0054] 242 :校正標記 095149818 表單編號A0101 第11頁/共17頁 0993346864-0095149818 Form No. 1010101 Page 10/Total 17 Page 0993346864-0 1339262 September 28, 2008, Nuclear Replacement Page [0042] 220: Drive [0043] 221: Belt [0044] 230: Detection device [0045] 231: Microscope unit [0046] 232: Display [0047] 2 3 3 : Light source • [0048] 234: Projection lens [0049] 235: First lens [0050] 236: Second lens " [0051] 237: Correction lens [ 0052] 238: third lens [0053] 241: projection mark. _ [0054] 242: correction mark 095149818 form number A0101 page 11/total 17 page 0993346864-0
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| TWI339262B true TWI339262B (en) | 2011-03-21 |
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