1290210 五、 中文發明摘要： 一種設有偏心檢測用刻痕之模造鏡片及其偏心檢測方 法，其係於模造鏡片之前、後二面的平面部上且在不影響 光學面成型範圍内，分別設置一個或數個與光學面同心的 刻痕，並使該刻痕可利用工具顯微鏡觀察到；藉此，利用 工具顯微鏡内附的偏心檢測.功能，即可測出模造鏡片的偏 心值，並可標定其偏心方向，以做為模具修正的依據，藉 以取代利用穿透式偏心儀並須搭配治具使用之習知鏡片偏 T苎$方法，而達成降低檢測設備成本，簡化檢測程序， _ 提咼模具修正之工作效率，及更方便達到鏡片控管的效果 w 者。 六、 英文發明摘要：（略） 七、 指定代表圖： (一） 本案指定代表圖為：圖（3)。 (二） 本代表圖之元件符號簡單說明： 鏡片1 光學面10、11 Φ 平面部12、13 刻痕14、15 尖角141 鏡片周緣16 八、 本ί?有，學式時，請揭示最能顯示發明特徵的化 學式：（略） 九、 發明說明： 【發明所屬之技術領域】 本發明係有關一種設有偏心檢測用刻痕之模造鏡片及 2 1290210 其偏心檢測方法，尤指一種在鏡片之前、後面且在光學面 範圍以外的平面部上分別設置一個或數個與光學面同心的 刻痕，且該等刻痕可在工具顯微鏡下觀察到，藉以可利用 工具顯微鏡内附的偏心檢測功能’測出成型鏡片的偏心 值，並可標定偏心方向，以做為該鏡片成型模具修正的依 據。 【先前技術】 „ 按，一模造鏡片如圖1所示之模造鏡片A1，其一般製 程包含下列步驟：先設計該鏡片之前、後二光學面A2，如 φ 設計一凸一凹二非球面；再利用超精密機械加工方式製作 一鏡片成型模具，如利用一超精密機械加工機，並以數位 控制程式（NC)來設定刀具路徑，即設定sag值（切削深 度值），使其自動進行模具之精密機械加工，而就一曲面 鏡片而言，設Z軸為此鏡片的光軸（Optical Axis)，並以 曲面中心為零點（X-Y平面原點），在鏡片曲面上的不同 位置，平行Z軸方向並與X-Y平面的高度差就是sag值， 又該sag值可利用光學方程式如Anamorphic surf ace，1290210 V. Abstract: A molded lens with eccentricity detection and an eccentricity detecting method thereof, which are respectively arranged on the plane portions of the front and rear surfaces of the molded lens and within the molding range which does not affect the optical surface, respectively One or several scorings concentric with the optical surface, and the scoring can be observed with a tool microscope; thereby, the eccentricity value of the molded lens can be measured by using the eccentricity detection function attached to the tool microscope, and Calibrate the eccentric direction as a basis for mold correction, instead of using the transmissive eccentric instrument and the conventional lens bias T苎$ method used in the fixture, to reduce the cost of the testing equipment and simplify the testing procedure, _工作 Mold correction work efficiency, and more convenient to achieve the effect of lens control w. VI. Summary of English invention: (omitted) VII. Designated representative map: (1) The representative representative of the case is: Figure (3). (2) Brief description of the symbol of the representative figure: Lens 1 Optical surface 10, 11 Φ Plane part 12, 13 Scoring 14, 15 Sharp corner 141 Lens circumference 16 Eight, this ί? Yes, please reveal the most Chemical formula showing the characteristics of the invention: (omitted) IX. Description of the invention: [Technical field of the invention] The present invention relates to a molded lens provided with an eccentricity detecting nick and a method for detecting an eccentricity thereof, particularly a lens One or several indentations concentric with the optical surface are respectively disposed on the front, rear and on the plane portion outside the optical surface range, and the incisions can be observed under the tool microscope, whereby the eccentricity detection attached to the tool microscope can be utilized The function 'measures the eccentricity value of the molded lens and can calibrate the eccentric direction as the basis for the correction of the lens forming mold. [Prior Art] „ Press, a molded lens as shown in Figure 1 of the molded lens A1, the general process includes the following steps: first design the lens before and after the optical surface A2, such as φ design a convex one concave two aspheric surface; Then use a super-precision machining method to make a lens molding mold, such as using an ultra-precision machining machine, and setting the tool path with a digital control program (NC), that is, setting the sag value (cutting depth value) to automatically mold the mold. Precision machining, and for a curved lens, the Z axis is the optical axis of the lens (Optical Axis), and the center of the surface is zero (XY plane origin), at different positions on the lens surface, parallel Z The difference between the axis direction and the height of the XY plane is the sag value, and the sag value can use an optical equation such as Anamorphic surf ace,
First Type Toric surface 或 Second Type Toric surfac 等 φ 方程式並配合參數而計算出；再利用該成型模具進行射出 成型（injection molding )製程或壓鑄成型製程，以量產 化製造鏡片；又該成型模具在完成後，一般先試做樣品， 供檢測該鏡片是否偏心，以做為模具修正的依據；又製成 之每一鏡片一般須經檢測程序始能判定為可用之良品。 又關於模造鏡片A1之光學面A2偏心的檢測，習知檢測 技術如圖2所示，係使用一穿透式偏心儀A3並搭配使用一 可旋轉的治具A4，使底部一光源之平行光A5直接穿透待測 鏡片A1的光學面A2以成像在晝面（顯示幕）A6上供檢測使 =，但是穿透式偏心儀A3之價格昂貴，生產成本相對提 鬲，又由於夾持待測鏡片A1的治具A4必須帶動待測鏡片Ai 3 1290210 smA7在晝面（顯示幕）a6上旋轉的直徑作為 〜大小的依據，因此對治具A4本身偏心的之要求後 Γ * 值至少在2 # m ( 1Q 6m )以下’使治具A4成本 2提高，且容易因夾持操作的誤差而影響檢測結果， 對造成模造鏡片A1檢測及控管（品管）的麻煩。又習 °才欢測技術中，在晝面A6上只能判定待測鏡片A1之偏心大 卞，，法分別^定該待測鏡片A1之前、後二不同光學面A2 上如一凸一凹前、後二非球面）的偏心大小，因此雖鋏在 晝面A6上檢測出鏡片A1之偏心大小，卻難以直接做為g且 φ 修，依據，換言之，難以判定該鏡片A1之偏心主=自、 於别、後二不同光學面中那一光學面的誤差，致無法準確 地或有效率地快速去修正該誤差光學面之模具成型面， 對造成模具修正的困擾。 【發明内容】 本發明之主要目的乃在於提供一種設有偏心檢測用刻 痕之模造鏡片，其係於鏡片之前、後二面的平面部上且在 不影響光學面成型範圍内，分別設置一個或數個與光學面 同心的刻痕，並使該等刻痕可在工具顯微鏡下觀察到，使 ⑩ 鏡片在做偏心檢測時，利用工具顯微鏡内附的偏心檢測功 能，即可測出該鏡片的偏心，並可標定偏心方向，以做為 該鏡片成型模具修正的依據，藉以達成降低檢測設備成 本，簡化檢測程序，提高模具修正的工作效率，及增進鏡 片之控管效果者。 本發明再一目的乃在於提供一種設有偏心檢測用刻痕 之模造鏡片，其中該刻痕係於製作該鏡片之成型模具時， 使成型模具上之鏡片光學面與該等刻痕利用超精密加工機 之切削刀具同時加工完成，亦即利用同一次切削動程進行 切削，藉以簡化該刻痕之製程，並確保該等刻痕與光學面 同心。 4The φ equation of First Type Toric surface or Second Type Toric surfac is calculated according to the parameters; the injection molding process is used to perform the injection molding process or the die-casting process to mass-produce the lens; and the molding die is completed. After that, the sample is generally tested first to detect whether the lens is eccentric or not, as a basis for mold correction; and each lens produced is generally determined to be a usable product through the detection process. Also, regarding the detection of the eccentricity of the optical surface A2 of the molded lens A1, the conventional detection technique is as shown in FIG. 2, using a transmissive eccentric A3 in combination with a rotatable fixture A4 to make the parallel light of the bottom one light source. A5 directly penetrates the optical surface A2 of the lens A1 to be tested for imaging on the facet (display screen) A6 for detection, but the price of the penetrating eccentric A3 is expensive, the production cost is relatively high, and The fixture A4 of the measuring lens A1 must drive the diameter of the lens Ai 3 1290210 smA7 to be rotated on the surface (display screen) a6 as the basis of the size, so the requirement for the eccentricity of the fixture A4 itself is at least 2 # m (1Q 6m ) or less 'Improve the cost of the fixture A4 2, and it is easy to affect the detection result due to the error of the clamping operation, which causes troubles in the detection and control (quality control) of the molded lens A1. In the technique of the joyful measurement, only the eccentricity of the lens A1 to be tested can be determined on the surface A6, and the method determines the front and back of the different optical surface A2 of the lens A1 to be tested as a convex and concave front. The eccentricity of the second and the aspherical surface. Therefore, although the eccentricity of the lens A1 is detected on the surface A6, it is difficult to directly treat it as g and φ. According to, in other words, it is difficult to determine the eccentricity of the lens A1. The error of the optical surface in the different optical surfaces of the second and the second, so that the mold molding surface of the error optical surface cannot be corrected accurately or efficiently, which causes troubles in mold correction. SUMMARY OF THE INVENTION The main object of the present invention is to provide a molded lens provided with an eccentricity detecting scribe, which is disposed on the front and rear planar portions of the lens and is disposed within a range that does not affect the optical surface forming. Or a number of nicks concentric with the optical surface, and the nicks can be observed under the tool microscope, so that when the eccentricity detection is performed on the 10 lens, the eccentricity detection function attached to the tool microscope can be used to detect the lens. The eccentricity can be used to calibrate the eccentric direction as a basis for correcting the lens forming mold, thereby achieving a reduction in the cost of the testing equipment, simplifying the testing procedure, improving the working efficiency of the mold correction, and improving the control effect of the lens. Still another object of the present invention is to provide a molded lens provided with an eccentricity detecting score, wherein the score is used to make the optical surface of the lens on the molding die and the precision of the embossing using ultra-precision The cutting tool of the processing machine is simultaneously processed, that is, the cutting is performed by the same cutting stroke, thereby simplifying the process of the scoring and ensuring that the incisions are concentric with the optical surface. 4
1290210 本發明又一目的乃在於提供一種設有偏心檢測用刻痕 之模造鏡片，其中該等刻痕係設於鏡片前、後面之平面部 之不同直徑處，使該等刻痕可在工具顯微鏡下分別觀察 到，進而可分別判定該鏡片前、後面二不同光學面（如一 凸一凹前後二非球面）的偏心大小，藉以可準確且有效率 地分別修正模具中各光學面之成型面，而簡化模具之修正 作業。 本發明另一目的乃在於提供一種模造鏡片之偏心檢測 方法，其係於鏡片之前、後面的平面部上，在不影響光學 面成型範圍内，分別設置一個或數個與光學面同心的刻 痕，且該等刻痕可在工具顯微鏡下觀察到；再利用工具顯 微鏡内附的偏心檢測功能，並藉該等刻痕來檢測該鏡片之 光學面的偏心；藉以降低檢測設備成本，簡化檢測程序， 並方便達成鏡片的控管效果。 本發明又另一目的乃在於提供一種模造鏡片之偏心檢 測方法，其中，當檢測該鏡片之光學面的偏心時，並可同 時標定偏心方向，以做為模具修正的依據，藉以提高模具 修正作業的工作效率。 •【實施方式】 有關本發明為達上述目的、特徵所採用的技術手段及 其功效，茲例舉較佳實施例並配合圖式說明如下：又 參照圖3所示’本發明模造鏡片1的基本結構盥習知 模造鏡片如圖1所示之鏡片A1類似，具有前、後二^ 學面10、11 (如-凸-凹前、後二非球面）及前 面部12、13，而其特徵在於··在模造鏡片丨之前 平面部3、13=且在不影響光學面10、11成型範圍内： 分別Ξί:: ί個與光學面同心的刻痕14、15，= 3 所二t平面部12、13上分別設—個與光温面 10、η同心的刻痕14、15，且該刻痕14、15係可藉㈡ 5 1290210 微鏡2如圖6所示攝影機20之顯示幕21放大觀察到如圖7 所示，並配合X-Y平台22，使鏡片1在作偏心檢測時，利 用工具顯微鏡2内附的偏心檢測功能，即可測出該鏡片1 的偏心值，旅可標定偏心方向，以做為該鏡片成型模具修 正的依據。 又如圖8所示，該刻痕14、15係於製作該鏡片1之成 型模具3時，使成型模具3上對應於鏡片光學面1〇、u之 光學面30、31與對應於刻痕14、15之刻痕32、33，利用超 精密加工機之切削刀具同時一刀加工完成，即藉同一次切 - 削動程加工完成，藉以確保鏡片1上刻痕14、15與光學面 _ 10、11為同心狀態。 再參照圖6、7所示，利用工具顯微鏡2測量鏡片1 的偏心時，係將待測鏡片1放置在X-Y平台22上，待測鏡 片1下方並設有背光光源23，使可藉由攝影機20之顯示幕 21上觀察到刻痕14、15及鏡片周緣16之放大影像如圖7所 示，再藉工具顯微鏡2内附的偏心檢測功能，即可測出該 鏡片1的偏心值；又工具顯微鏡2在點取圖形物件時如圖 7所示，可分別獲得待測鏡片1之光學面10、11的座標及 真圓度等資訊，其中，該座標可用於計算偏心量與偏心方 φ 向（位置），該真圓度可用於判定人工操作的誤差，真圓 度太大則表示人工點選位置不準，或物件擺放不平，或物 件收縮過大，並可分別標定偏心方向，以做為修正該鏡片 成型模具3之依據。 又該刻痕14、15上以各具有一尖角141、151為佳， 使刻痕14、15在背光光源22作用下，仍可在顯示幕21上顯 現一較明確且精細之刻痕14、15之放大影像，藉以增進偏 心量侧之準確度。 再參照圖6、7所示，該刻痕14、15係設於鏡片前、 後面平面部12、13上之不同直徑處，如刻痕14較靠近光學 6 1290210 面1而刻痕15較遠離光學面11，使前、後面二刻痕14、 5可藉工具顯微鏡2及攝影機20而在顯示幕21上分別顯現 口圖7所示，則藉顯示幕21上二分別刻痕14、15分別與鏡 1之周緣16比對，進而可分別判定該鏡片1前、後面二 =同光學面1〇、11的偏心大小，藉以可準確地、有效率地 二正該光學面10、11之成型模具3的光學面3〇/31 ，並簡 化模具3之修正作業。 一$由上可知，本發明模造鏡片1之偏心檢測方法與利用1290210 A further object of the present invention is to provide a molded lens provided with an eccentricity detecting score, wherein the scores are provided at different diameters of the front and rear plane portions of the lens, so that the scores can be in the tool microscope Observed separately, and then the eccentricity of the two different optical surfaces (such as a convex and concave front and rear aspheric surfaces) of the front and rear of the lens can be respectively determined, so that the forming surfaces of the optical surfaces in the mold can be corrected accurately and efficiently. Simplify the correction of the mold. Another object of the present invention is to provide an eccentricity detecting method for a molded lens, which is provided on the front surface of the lens and the rear surface portion, and one or a plurality of nicks concentric with the optical surface are respectively disposed within a range that does not affect the forming of the optical surface. And the nicks can be observed under the tool microscope; the eccentricity detection function attached to the tool microscope is used, and the eccentricity of the optical surface of the lens is detected by the scribes; thereby reducing the cost of the testing device and simplifying the testing procedure And convenient to achieve the control effect of the lens. Still another object of the present invention is to provide an eccentricity detecting method for a molded lens, wherein when the eccentricity of the optical surface of the lens is detected, the eccentric direction can be simultaneously calibrated to serve as a basis for mold correction, thereby improving the mold correction operation. Work efficiency. [Embodiment] The present invention is directed to the technical means and the effects thereof for achieving the above objects and features, and the preferred embodiments are illustrated as follows with reference to the drawings: Referring to Figure 3, the molded lens 1 of the present invention The basic structure is similar to the lens A1 shown in Fig. 1, and has front and rear surfaces 10, 11 (such as - convex-concave front and rear aspheric surfaces) and front portions 12, 13 The feature is that the flat portion 3, 13 = and does not affect the forming range of the optical surface 10, 11 before molding the lens :: respectively Ξί:: ί a nick of the optical surface 14, 15 , = 3 The plane portions 12, 13 are respectively provided with a score 14 and 15 concentric with the light temperature surface 10, η, and the scores 14, 15 can be borrowed (2) 5 1290210 The micromirror 2 is displayed as shown in the camera 20 of FIG. Curtain 21 is magnified and observed as shown in Fig. 7, and with the XY stage 22, when the lens 1 is used for eccentricity detection, the eccentricity value of the lens 1 can be measured by using the eccentricity detecting function attached to the tool microscope 2, and the eccentricity value of the lens 1 can be measured. The eccentric direction is calibrated to serve as a basis for the correction of the lens forming mold. As shown in Fig. 8, the scores 14, 15 are attached to the molding die 3 of the lens 1 so that the optical faces 30, 31 corresponding to the optical surfaces 1 and u of the molding die 3 correspond to the nicks. The scores of the 15 and 15 are 32, 33, and the cutting tool of the ultra-precision machining machine is completed at the same time, that is, the same cutting-cutting process is completed, thereby ensuring the scores 14, 15 and the optical surface on the lens 1 _ 10 11 is concentric. Referring again to FIGS. 6 and 7, when the eccentricity of the lens 1 is measured by the tool microscope 2, the lens 1 to be tested is placed on the XY stage 22, and the backlight source 23 is disposed under the lens 1 to be tested, so that the camera can be used by the camera. The enlarged image of the scores 14, 15 and the peripheral edge 16 of the lens is observed on the display screen 21 of 20, as shown in Fig. 7, and the eccentricity value of the lens 1 can be measured by the eccentricity detecting function attached to the tool microscope 2; When the tool microscope 2 picks up the graphic object as shown in FIG. 7, the coordinates and the roundness of the optical surfaces 10 and 11 of the lens 1 to be tested can be respectively obtained, wherein the coordinate can be used to calculate the eccentricity and the eccentricity φ. To (position), the roundness can be used to determine the error of manual operation. If the roundness is too large, it means that the manual point is not accurate, or the object is unevenly placed, or the object shrinks too much, and the eccentric direction can be separately calibrated. As a basis for correcting the lens forming mold 3. Further, the scores 14, 15 preferably have a sharp corners 141, 151, so that the scores 14, 15 can be applied to the display screen 21 by the backlight source 22, and a clearer and finer score can be displayed on the display screen 14. , 15 magnified image, in order to improve the accuracy of the eccentricity side. Referring again to Figures 6 and 7, the scores 14, 15 are disposed at different diameters on the front and rear planar portions 12, 13 of the lens, such as the score 14 being closer to the optical 6 1290210 face 1 and the score 15 being further away The optical surface 11 is such that the front and back two scores 14, 5 can be respectively displayed on the display screen 21 by the tool microscope 2 and the camera 20, respectively, and the two screens 14 and 15 respectively are displayed on the display screen 21 Compared with the peripheral edge 16 of the mirror 1, the eccentricity of the front and rear surfaces of the lens 1 and the optical surfaces 1 and 11 can be respectively determined, so that the optical surfaces 10 and 11 can be accurately and efficiently formed. The optical surface of the mold 3 is 3〇/31, and the correction work of the mold 3 is simplified. One can be seen from the above, the eccentricity detecting method and utilization of the molded lens 1 of the present invention
# ί透式偏心儀A3搭配一可旋轉的治具A4使用之習知檢測 術並不相同，本發明之檢測方法包含下列步驟： 鏡片成型模具3，並在成型模具3之前、後面的平 2上，且在不影響光學面成型範圍内，預設一個或數個 二光學面30、31同心之刻痕32、33，藉以在成型鏡片1之 ，後面的平面部12、13上形成與光學面1〇、11同心的刻 痕 14、15 ; 利用該成型模具3製造鏡片1 ，使鏡片的前、後面的 1面部12、13上，且在不影響光學面10、n成型範圍内， y刀別形成一個或數個與光學面10、u同心的刻痕14、15， 且該巧痕14、15係可利用一般工具顯微鏡2觀察到； _提供一工具顯微鏡2，並包含攝影機20、顯示幕21 一 X—Y平台22，而平台22下方設有背光光源23 ; 、一使待測鏡片1放在χ—γ平台22上，藉平台22下方之^ 光光源23，使可由攝影機2〇之顯示幕21觀察到上述 背 之刻痕14、15及鏡片周緣16之放大影像； 1 利用工具顯微鏡20内附的偏心檢測功能，並藉診 學面10、11同心的刻痕14、15，來檢測該鏡片j 10、11的偏心； 次*學3 在檢測該鏡片1之光學面10、11的偏心時，可间 定偏心方向，以做為成型模具3修正的依據。 等才1 1290210 綜上所述，本發明「設有偏心檢測用刻痕之模造鏡片 及其偏心檢測方法」，的綠能藉由上述所揭露之構造，達 到所述之功效。且本發明申請前未見於刊物亦未公開使 用，誠已符合發明專利之新穎、進步等要件。 惟，上述所揭之圖式及說明，僅為本發明之實施例而 已，非為限定本發明之實施例；大凡熟悉該項技藝之人 士，其所依本發明之特徵範疇，所作之其它等效變化或修 飾，皆應涵蓋在以下本案之申請專利範圍内。 【圖式簡單說明】 圖1係習知一模造鏡片之剖面示意圖。 圖2係習知模造鏡片之偏心檢測方法示意圖。 圖3係本發明模造鏡片一實施例之剖面示意圖。 圖4係圖3中前平面部一同心刻痕之放大示意圖。 圖5係圖3中後平面部一同心刻痕之放大示意圖。 圖6係本發明模造鏡片之偏心檢測方法示意圖。 圖7係本發明藉工具顯微鏡放大觀察到同心刻痕之檢測示 意圖。 圖8係本發明模造鏡片之成型模具示意圖。 【主要元件符號說明】 (習知技術） 模造鏡片A1 光學面A2 穿透式偏心儀A3 治具A4 平行光A5 晝面A6 焦點A7 (本發明） 8 1290210 鏡片1 光學面10、11 平面部12、13 刻痕14、15 尖角 141 、151 鏡片周緣16 工具顯微鏡2 攝影機20 顯示幕21 X-Y平台22 背光光源23 成型模具3 光學面30、31 刻痕32、33# 透 透 式 A3 is not the same as the conventional detection using a rotatable fixture A4. The detection method of the present invention comprises the following steps: the lens molding die 3, and before the molding die 3, the flat 2 And, without affecting the forming range of the optical surface, one or several two optical surfaces 30, 31 are concentrically scored 32, 33, thereby forming and optically on the rear planar portions 12, 13 of the molded lens 1. Faces 1 and 11 concentric scores 14, 15; The lens 1 is produced by the molding die 3 so that the front and back faces 12 and 13 of the lens are not affected by the optical surface 10 and n. The knives form one or several scores 14, 15 concentric with the optical faces 10, u, and the clumps 14, 15 can be observed using the general tool microscope 2; _ providing a tool microscope 2, and including a camera 20, The display screen 21 is an X-Y platform 22, and a backlight source 23 is disposed under the platform 22; and the lens 1 to be tested is placed on the χ-γ platform 22, and the light source 23 under the platform 22 is used to make the camera 2 The display screen 21 of the cymbal observes the scores 14 and 15 of the back and the periphery of the lens 16 Enlarge the image; 1 Use the eccentricity detection function attached to the tool microscope 20, and use the concentric scores 14, 15 of the facets 10, 11 to detect the eccentricity of the lens j 10, 11; When the eccentricity of the optical faces 10 and 11 of 1 can be determined, the eccentric direction can be determined as the basis for the correction of the molding die 3. Etc. 1 1290210 In summary, the green energy of the present invention, which has a molded lens for eccentricity detection and an eccentricity detecting method thereof, achieves the above-described effects by the above-described disclosed structure. Moreover, the invention has not been disclosed in the publication before the application of the invention, and the invention has met the novelty, progress and other requirements of the invention patent. The drawings and descriptions of the present invention are merely illustrative of the embodiments of the present invention, and are not intended to limit the embodiments of the present invention; All changes or modifications should be covered in the scope of the patent application below. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic cross-sectional view of a conventional molded lens. 2 is a schematic view showing an eccentricity detecting method of a conventional molded lens. Figure 3 is a schematic cross-sectional view showing an embodiment of a molded lens of the present invention. Figure 4 is an enlarged schematic view of a concentric score of the front plane portion of Figure 3. Figure 5 is an enlarged schematic view of a concentric score of the rear planar portion of Figure 3. Fig. 6 is a schematic view showing the eccentricity detecting method of the molded lens of the present invention. Figure 7 is a schematic illustration of the detection of concentric scores observed by a microscope of the present invention. Figure 8 is a schematic view of a molding die of the molded lens of the present invention. [Major component symbol description] (Priority technology) Molded lens A1 Optical surface A2 Penetrating eccentric A3 Fixture A4 Parallel light A5 Face A6 Focus A7 (Invention) 8 1290210 Lens 1 Optical surface 10, 11 Flat portion 12 , 13 nicks 14 , 15 sharp corners 141 , 151 lens peripheral 16 tool microscope 2 camera 20 display screen 21 XY stage 22 backlight source 23 molding die 3 optical surface 30, 31 nicks 32, 33
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