TWI614480B - Optical film width line measuring device and measuring method - Google Patents
Optical film width line measuring device and measuring method Download PDFInfo
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Description
本發明是有關於一種幅寬線上測量裝置及測量方法，特別是指一種用於量測光學膜寬度的幅寬線上測量裝置及測量方法。 The invention relates to a measuring device and a measuring method for a wide-width line, in particular to a measuring device and a measuring method for a wide-width line for measuring the width of an optical film.
偏光板為液晶顯示裝置的重要元件，其為多層膜層堆疊結合所構成，因此製程複雜，由前段卷狀生產至後段裁切過程，皆會影響到偏光板的幅寬，為提升裁切利用率，必須嚴格控制製成偏光板之膜材的有效幅寬。偏光板製程為連續生產，並且利用數個滾輪帶動膜材於生產線上傳輸行進，因此利用能於生產線上直接進行幅寬測量之裝置，可以於線上精確地監控膜材幅寬。此外，其他有寬度量測需求的光學膜，也可以採用幅寬測量裝置來量測。 The polarizing plate is an important component of the liquid crystal display device, and is composed of a plurality of film layers stacked and combined, so the process is complicated, and the process from the front roll to the rear cutting process affects the width of the polarizing plate, and is used for lifting cutting. At the rate, the effective width of the film made of the polarizing plate must be strictly controlled. The polarizing plate process is continuous production, and a plurality of rollers are used to drive the film to travel on the production line. Therefore, the device width can be accurately monitored on the line by using a device capable of directly measuring the width of the line. In addition, other optical films with width measurement requirements can also be measured using a width measuring device.
然而，已知的幅寬測量裝置通常僅架設單一個影像擷取元件，並驅動該影像擷取元件來回移動於光學膜的兩側邊來進行幅寬測量，但如此造成測量速度較慢，在測量應用上也較不方便。而有些幅寬測量裝置即使已架設兩個影像擷取元件來搭配使用，但由於該兩影像擷取元件通常為固定角度地架設，最多只能於水平方向上前後左右移動，但無法調整影像擷取元件上下左右樞轉的角度，故測量上仍有不便之處。當光學膜樣品自生產線上的其他不同位置傳送而來時，就必須另外架設其他適當角度的影像擷取元件來偵測，造成麻煩。However, the known width measuring device usually only erects a single image capturing component, and drives the image capturing component to move back and forth on both sides of the optical film to perform the width measurement, but the measurement speed is slower. Measurement applications are also less convenient. Some of the image measuring devices have been erected with two image capturing components. However, since the two image capturing components are usually erected at a fixed angle, they can only move up and down in the horizontal direction, but the image cannot be adjusted. Taking the angle of the components up and down and left and right, there is still inconvenience in the measurement. When the optical film sample is transferred from other different locations on the production line, it is necessary to additionally mount other appropriate angle image capturing components for detection, causing trouble.
因此，本發明之目的，即在提供一種能克服先前技術的至少一個缺點的光學膜幅寬線上測量裝置。Accordingly, it is an object of the present invention to provide an optical film web line measuring device that overcomes at least one of the disadvantages of the prior art.
於是，本發明光學膜幅寬線上測量裝置，用於測量該光學膜的幅寬，該光學膜包括相對的一個第一側邊與一個第二側邊，該光學膜幅寬線上測量裝置包含二個影像擷取單元，及一個處理單元。該等影像擷取單元可各自獨立地沿一個通過該第一側邊與該第二側邊的移動方向來回移動，並且可樞轉以改變拍攝角度，該等影像擷取單元分別用於擷取該光學膜的該第一側邊與該第二側邊的影像。該處理單元訊號連接該等影像擷取單元，並依據該等影像擷取單元的移動位置來處理計算得到該光學膜的幅寬。Thus, the optical film width line measuring device of the present invention is used for measuring the width of the optical film, the optical film includes a first side and a second side opposite to each other, and the measuring device of the optical film width line comprises two An image capture unit and a processing unit. The image capturing units are independently movable back and forth along a moving direction through the first side and the second side, and are pivotable to change a shooting angle, and the image capturing units are respectively used for capturing An image of the first side and the second side of the optical film. The processing unit signals are connected to the image capturing units, and the width of the optical film is calculated according to the moving positions of the image capturing units.
本發明之另一目的，即在提供一種能克服先前技術的至少一個缺點的光學膜幅寬線上測量方法。Another object of the present invention is to provide a method of measuring an optical film web width that overcomes at least one of the disadvantages of the prior art.
本發明光學膜幅寬線上測量方法，配合一光學膜幅寬線上測量裝置來測量該光學膜之幅寬，該光學膜幅寬線上測量裝置包含二個影像擷取單元，該等影像擷取單元分別為一個第一影像擷取單元與一個第二影像擷取單元，該光學膜包括相對的一個第一側邊與一個第二側邊，定義該第一側邊與該第二側邊的連線方向為一個移動方向。The optical film width line measuring method of the present invention is used to measure the width of the optical film by using an optical film width line measuring device comprising two image capturing units, and the image capturing unit a first image capturing unit and a second image capturing unit, the optical film includes an opposite first side and a second side, defining the first side and the second side The line direction is a moving direction.
該光學膜幅寬線上測量方法包含(A)該第一影像擷取單元沿該移動方向移動，以偵測該光學膜的該第二側邊位置；(B)將該第一影像擷取單元的位置歸零；(C)該第一影像擷取單元沿該移動方向移動，以偵測該光學膜的該第一側邊位置；(D)該第二影像擷取單元沿該移動方向移動，以偵測該光學膜的該第二側邊位置；(E)將該第二影像擷取單元的位置歸零；(F)處理與計算該第一影像擷取單元與該第二影像擷取單元的移動位置訊號，以得到該光學膜的幅寬。The measuring method of the optical film width line comprises: (A) the first image capturing unit moves along the moving direction to detect the second side position of the optical film; (B) the first image capturing unit (C) the first image capturing unit moves in the moving direction to detect the first side position of the optical film; (D) the second image capturing unit moves in the moving direction Detecting the second side position of the optical film; (E) zeroing the position of the second image capturing unit; (F) processing and calculating the first image capturing unit and the second image 撷The moving position signal of the unit is taken to obtain the width of the optical film.
本發明的另一種光學膜幅寬線上測量方法，同樣配合該光學膜幅寬線上測量裝置來測量該光學膜之幅寬，且該光學膜幅寬線上測量裝置進一還包含一個固定地位於該等影像擷取單元的移動路徑上的歸零感測件。Another optical film width line measuring method of the present invention is also used to measure the width of the optical film by using the optical film width line measuring device, and the measuring device of the optical film width line further comprises a fixed location Zeroing sensor on the moving path of the image capturing unit.
所述另一種光學膜幅寬線上測量方法包含(A)該第一影像擷取單元沿該移動方向移動；(B) 當該歸零感測件感測到該第一影像擷取單元時，將該第一影像擷取單元的位置歸零；(C)該第一影像擷取單元沿該移動方向移動，以偵測該光學膜的該第一側邊位置；(D)該第二影像擷取單元沿該移動方向移動；(E) 當該歸零感測件感測到該第二影像擷取單元時，將該第二影像擷取單元的位置歸零；(F)該第二影像擷取單元沿該移動方向移動，以偵測該光學膜的該第二側邊位置；(G)處理與計算該第一影像擷取單元與該第二影像擷取單元的移動位置訊號，以得到該光學膜的幅寬。The measuring method of the other optical film width line includes (A) the first image capturing unit moves along the moving direction; (B) when the zeroing sensing member senses the first image capturing unit, Zeroing the position of the first image capturing unit; (C) moving the first image capturing unit along the moving direction to detect the first side position of the optical film; (D) the second image The capturing unit moves in the moving direction; (E) when the zeroing sensing member senses the second image capturing unit, resetting the position of the second image capturing unit to zero; (F) the second The image capturing unit moves in the moving direction to detect the second side position of the optical film; (G) processes and calculates the moving position signals of the first image capturing unit and the second image capturing unit, The width of the optical film is obtained.
本發明之功效在於：藉由該兩影像擷取單元相配合，加上各個影像擷取單元的影像擷取元件角度可樞轉，能根據該光學膜之位置而作拍攝方向的調整，使用上非常便利。本發明之方法，利用具有特定邏輯之程式來偵測光學膜側邊並定位，能即時計算並持續監控光學膜之寬度，測量快速且精確。The effect of the invention is that: by the two image capturing units being matched, the image capturing component angle of each image capturing unit can be pivoted, and the shooting direction can be adjusted according to the position of the optical film. Very convenient. The method of the present invention utilizes a program with a specific logic to detect and position the side of the optical film, and can instantly calculate and continuously monitor the width of the optical film, and the measurement is fast and accurate.
在本發明被詳細描述之前，應當注意在以下的說明內容中，類似的元件是以相同的編號來表示。Before the present invention is described in detail, it should be noted that in the following description, similar elements are denoted by the same reference numerals.
參閱圖1、2，本發明光學膜幅寬線上測量裝置之一第一實施例，是於製造該光學膜11的生產線上用於測量該光學膜11的幅寬(也就是光學膜11的寬度)，該光學膜11可捲繞於一滾輪12上，並於生產線上沿一傳輸方向前進。該光學膜11例如偏光膜或其他任何需要進行幅寬量測的膜。該光學膜11包括相對的一個第一側邊111與一個第二側邊112，定義該第一側邊111與該第二側邊112的連線方向為一移動方向13。本實施例的測量裝置包含一個軌道2、二個影像擷取單元3、4、一個處理單元5，以及一個歸零感測件6。Referring to Figures 1 and 2, a first embodiment of the optical film width line measuring device of the present invention is used to measure the width of the optical film 11 (i.e., the width of the optical film 11) on the production line for manufacturing the optical film 11. The optical film 11 can be wound on a roller 12 and advanced in a transport direction on the production line. The optical film 11 is, for example, a polarizing film or any other film that requires measurement of the width. The optical film 11 includes an opposite first side 111 and a second side 112. The direction in which the first side 111 and the second side 112 are connected is a moving direction 13. The measuring device of this embodiment comprises a track 2, two image capturing units 3, 4, a processing unit 5, and a return-to-zero sensing member 6.
該軌道2沿該移動方向13長向延伸。於實施時該軌道2結構無特殊限制，只要能供該等影像擷取單元3、4可移動地架設安裝就可以。該軌道2可以為線性滑軌，並可搭配線性馬達來驅動該等影像擷取單元3、4移動，再結合光學尺或磁性尺來偵測該等影像擷取單元3、4的移動距離。結合高精度的光學尺或磁性尺不僅可以偵測移動距離，還可以提升距離偵測的精準度。The track 2 extends longitudinally in the direction of movement 13 . The structure of the track 2 is not particularly limited in practice, as long as the image capturing units 3, 4 can be movably mounted. The track 2 can be a linear slide rail, and can be driven by a linear motor to drive the image capturing units 3 and 4 to move, and then combined with an optical scale or a magnetic ruler to detect the moving distance of the image capturing units 3 and 4. Combined with a high-precision optical ruler or magnetic ruler, it not only detects the moving distance, but also improves the accuracy of distance detection.
該等影像擷取單元3、4沿該移動方向13左右排列，並且能各自獨立地沿該移動方向13移動，還可上下樞轉以改變拍攝角度，該等影像擷取單元3、4分別用於擷取該光學膜11的該第一側邊111與該第二側邊112的影像。在本實施例中，每一個影像擷取單元3、4包括一個能沿該移動方向13來回移動地安裝在該軌道2上的基座31，以及一個可樞轉地安裝在該基座31上的影像擷取元件32，該影像擷取元件32具有一安裝於基座31上的感光耦合元件(Charge Coupled Device, CCD)，及一接設於該感光耦合元件的鏡頭。為了方便說明，該等影像擷取單元3、4的基座31與影像擷取元件32採相同的元件符號。每一影像擷取單元3、4的該影像擷取元件32與該基座31間的結合方式不須限制，只要該影像擷取元件32可相對該基座31樞轉就可以。例如，可以將該影像擷取元件32設置於一可透過一樞軸進行樞轉的座體33上，該座體33再與該基座31結合，以達到影像擷取元件32可相對樞轉的目的。該基座31與該座體33上都可以設置數個不同的安裝部位，使該影像擷取元件32的安裝位置有多個選擇，拍攝角度更廣泛。The image capturing units 3 and 4 are arranged in the moving direction 13 and can be independently moved along the moving direction 13 and can also be pivoted up and down to change the shooting angle. The image capturing units 3 and 4 respectively use An image of the first side 111 and the second side 112 of the optical film 11 is captured. In the present embodiment, each of the image capturing units 3, 4 includes a base 31 that is movably mounted on the track 2 in the moving direction 13, and a pivotally mounted on the base 31. The image capturing component 32 has a photosensitive coupler device (CCD) mounted on the base 31, and a lens connected to the photosensitive coupling component. For convenience of explanation, the pedestal 31 of the image capturing units 3, 4 and the image capturing element 32 are given the same component symbols. The manner in which the image capturing component 32 of each image capturing unit 3, 4 is coupled to the base 31 is not limited as long as the image capturing component 32 can pivot relative to the base 31. For example, the image capturing member 32 can be disposed on a seat body 33 that can be pivoted through a pivot. The seat body 33 is coupled to the base 31 to achieve relative pivoting of the image capturing member 32. the goal of. A plurality of different mounting positions can be disposed on the base 31 and the base body 33, so that the mounting position of the image capturing member 32 can be selected in multiple ways, and the shooting angle is wider.
該處理單元5訊號連接該等影像擷取單元3、4，並依據該等影像擷取單元3、4的移動位置訊號來處理計算得到該光學膜11的幅寬。該處理單元5例如一台電腦。The processing unit 5 is connected to the image capturing units 3 and 4, and the width of the optical film 11 is calculated according to the moving position signals of the image capturing units 3 and 4. The processing unit 5 is for example a computer.
該歸零感測件6固定地位於該等影像擷取單元3、4的移動路徑上，並用於校正該等影像擷取單元3、4的零點位置。具體而言，該歸零感測件6可以固定於該軌道2上，其例如一光感應器，可於該等影像擷取單元3、4位置對應到該歸零感測件6時，因為光遮斷原理而偵測感應到影像擷取單元3、4的靠近。於實施時該歸零感測件6也可以是其他種運作原理的感測器。The zero-receiving member 6 is fixedly located on the moving path of the image capturing units 3, 4 and is used to correct the zero position of the image capturing units 3, 4. Specifically, the return-to-zero sensing component 6 can be fixed on the track 2, for example, a light sensor, when the image capturing units 3, 4 are corresponding to the zero-receiving component 6, because The light interception principle detects the proximity of the image capturing units 3, 4. The zero return sensing member 6 can also be a sensor of other operating principles when implemented.
參閱圖2、3、4，本發明光學膜幅寬線上測量方法的一第一實施例，配合上述測量裝置使用，並包含以下步驟：Referring to Figures 2, 3 and 4, a first embodiment of the method for measuring an optical film width line of the present invention is used in conjunction with the above measuring device and comprises the following steps:
步驟71：為了方便以下的說明，將該等影像擷取單元3、4分為一個第一影像擷取單元3與一個第二影像擷取單元4。首先，該等影像擷取單元3、4是如圖3所示位於該軌道2的同一側，而且位置都鄰近該光學膜11的該第二側邊112，並且相對地位於該第二側邊112左側，也就是說該等影像擷取單元3、4都位於該光學膜11外的範圍。開始測量時，該第一影像擷取單元3可被驅動而沿該移動方向13移動至該光學膜11的該第二側邊112，並拍攝到該第二側邊112而偵測到該第二側邊112位置。Step 71: For convenience of the following description, the image capturing units 3 and 4 are divided into a first image capturing unit 3 and a second image capturing unit 4. First, the image capturing units 3, 4 are located on the same side of the track 2 as shown in FIG. 3, and are located adjacent to the second side 112 of the optical film 11, and are located opposite to the second side. The left side of 112, that is to say, the image capturing units 3, 4 are all located outside the optical film 11. When the measurement is started, the first image capturing unit 3 can be driven to move to the second side 112 of the optical film 11 along the moving direction 13 and the second side 112 is captured to detect the first Two side 112 positions.
步驟72：在本實施例中，是以該第二側邊112的位置做為零點，故將該第一影像擷取單元3位於該第二側邊112時的位置歸零。Step 72: In this embodiment, the position of the second side 112 is zero, so that the position of the first image capturing unit 3 at the second side 112 is zeroed.
步驟73：驅動該第一影像擷取單元3沿該移動方向13移動至該光學膜11的該第一側邊111，並拍攝到該第一側邊111而偵測到該第一側邊111位置。Step 73: The first image capturing unit 3 is driven to move to the first side 111 of the optical film 11 in the moving direction 13 and the first side 111 is photographed to detect the first side 111. position.
步驟74：該第二影像擷取單元4受到驅動而沿該移動方向13移動至該第二側邊112，並拍攝到該第二側邊112而偵測到該第二側邊112位置。Step 74: The second image capturing unit 4 is driven to move along the moving direction 13 to the second side 112, and the second side 112 is photographed to detect the position of the second side 112.
步驟75：將該第二影像擷取單元4的位置歸零。Step 75: Zero the position of the second image capturing unit 4.
步驟76：該處理單元5處理與計算該第一影像擷取單元3與該第二影像擷取單元4的移動位置訊號，以得到該光學膜11的幅寬，並持續監控該光學膜11的幅寬。此處主要是將該第一影像擷取單元3偵測到該第一側邊111時的位置，減去該第二影像擷取單元4偵測得到該第二側邊112時的位置，就可以得到該第一側邊111與該第二側邊112的距離，也就是該光學膜11的幅寬。Step 76: The processing unit 5 processes and calculates the movement position signals of the first image capturing unit 3 and the second image capturing unit 4 to obtain the width of the optical film 11, and continuously monitors the optical film 11. Width. Here, the position of the first image capturing unit 3 is detected by the first image capturing unit 3, and the position of the second image capturing unit 4 when the second side 112 is detected is subtracted. The distance between the first side 111 and the second side 112, that is, the width of the optical film 11, can be obtained.
其中，本發明的方法可加入警示程序，各影像擷取單元3、4在尋找光學膜11的側邊位置時(即步驟71、73、74)，若影像擷取單元3、4來回移動的尋找時間、過程太久時，可自動停止作動並發出警報警示，再由人員進行問題排除。Wherein, the method of the present invention can add a warning program, and each image capturing unit 3, 4 searches for the side position of the optical film 11 (ie, steps 71, 73, 74), and if the image capturing units 3, 4 move back and forth When the time and process are too long, the operation can be automatically stopped and a warning alarm is issued, and the problem is eliminated by the personnel.
值得一提的是，由於本發明的影像擷取元件32角度可樞轉，因此在步驟71、73、74中，可利用可樞轉的座體33而將各個影像擷取單元3、4的該影像擷取元件32的角度樞轉至所需要的拍攝角度。此種可根據該光學膜11之不同的相對位置而作拍攝方向的調整，使用上非常便利，在應用上也更加廣泛實用，當光學膜11從其他角度或方向傳送而來時(如圖2中假想線所示位置)，不僅不需要另外架設軌道2與影像擷取單元3、4，也不需移動該等影像擷取單元3、4，而是只要調整座體33進而帶動影像擷取元件32的角度到圖2中假想線所示位置就能測量，因此，使用上更為方便，還可以同時有效降低安裝成本、減少空間浪費。It is worth mentioning that, since the image capturing member 32 of the present invention is pivotable, in steps 71, 73, 74, the pivotable housings 33 can be used to capture the respective image capturing units 3, 4. The angle of the image capture element 32 is pivoted to the desired angle of capture. This can be adjusted according to the different relative positions of the optical film 11, and is very convenient to use, and is more widely used in application, when the optical film 11 is transmitted from other angles or directions (see FIG. 2). The position shown in the imaginary line) does not need to additionally erect the track 2 and the image capturing unit 3, 4, and does not need to move the image capturing units 3, 4, but only adjusts the seat 33 to drive the image capturing. The angle of the component 32 can be measured at the position shown by the imaginary line in Fig. 2. Therefore, it is more convenient to use, and it can also effectively reduce the installation cost and reduce the space waste.
實際上光學膜11樣品有大有小，若光學膜11幅寬較大時，並且受限於該等影像擷取單元3、4安裝於該軌道2上的空間有限，並非每一影像擷取單元3、4都能以該第二側邊112作為零點位置，此時可稍微改變測量方法。因此，參閱圖2、5、6、7，本發明光學膜幅寬線上測量方法的一第二實施例，包含以下步驟：In fact, the sample of the optical film 11 is large or small. If the width of the optical film 11 is large, and the space in which the image capturing units 3 and 4 are mounted on the track 2 is limited, not every image is captured. Both the units 3, 4 can use the second side 112 as a zero position, in which case the measurement method can be slightly changed. Therefore, referring to Figures 2, 5, 6, and 7, a second embodiment of the method for measuring an optical film width line of the present invention comprises the following steps:
步驟81：在本實施例中，該光學膜11的寬度較大，該第一影像擷取單元3的影像擷取元件32的起始位置位於該光學膜11的該第一側邊111與該第二側邊112之間，該歸零感測件6位於該第一影像擷取單元3與該第一側邊111之間，該第二影像擷取單元4的影像擷取元件32起始位置位於該光學膜11的該第二側邊112左側之外。在本步驟中，首先驅動該第一影像擷取單元3沿該移動方向13而朝該歸零感測件6移動。Step 81: In this embodiment, the width of the optical film 11 is larger, and the starting position of the image capturing component 32 of the first image capturing unit 3 is located at the first side 111 of the optical film 11 and the Between the second side 112, the zero-sensing member 6 is located between the first image capturing unit 3 and the first side 111, and the image capturing unit 32 of the second image capturing unit 4 starts. The position is outside the left side of the second side 112 of the optical film 11. In this step, the first image capturing unit 3 is first driven to move along the moving direction 13 toward the zeroing sensor 6.
步驟82：當該歸零感測件6感測到該第一影像擷取單元3時，就表示該第一影像擷取單元3已移動到對應該歸零感測件6的位置，此時該歸零感測件6就可將訊號回饋給該處理單元5，該處理單元5就控制該第一影像擷取單元3停止移動，並以該歸零感測件6的位置做為零點，而將該第一影像擷取單元3對準該歸零感測件6時的位置歸零。在本實施例中，是以該歸零感測件6的位置做為零點，以確保當該光學膜11的寬度較大時，該第一、二影像擷取單元3、4仍有共同零點，而且該歸零感測件6是一光感應器，因此，當其發出的光訊號被該第一影像擷取單元3遮斷時，就表示該第一影像擷取單元3已移動到對應該歸零感測件6的位置，故將該第一影像擷取單元3對準該歸零感測件6時的位置歸零。Step 82: When the zero-receiving component 6 senses the first image capturing unit 3, it indicates that the first image capturing unit 3 has moved to the position corresponding to the zero-sensing component 6, at this time. The zeroing sensing component 6 can feed back the signal to the processing unit 5, and the processing unit 5 controls the first image capturing unit 3 to stop moving, and uses the position of the zeroing sensing component 6 as a zero point. The position at which the first image capturing unit 3 is aligned with the zeroing sensor 6 is reset to zero. In this embodiment, the position of the return-to-zero sensing member 6 is made zero to ensure that when the width of the optical film 11 is large, the first and second image capturing units 3 and 4 still have a common zero point. And the zero-sensing member 6 is a light sensor. Therefore, when the light signal emitted by the first image capturing unit 3 is interrupted, it indicates that the first image capturing unit 3 has moved to the pair. The position of the sensing member 6 should be zeroed, so that the position at which the first image capturing unit 3 is aligned with the zeroing sensing member 6 is zeroed.
步驟83：驅動該第一影像擷取單元3沿該移動方向13移動至該第一側邊111(如圖7)，以偵測該光學膜11的該第一側邊111位置。Step 83: The first image capturing unit 3 is driven to move along the moving direction 13 to the first side 111 (as shown in FIG. 7) to detect the position of the first side 111 of the optical film 11.
步驟84：驅動該第二影像擷取單元4沿該移動方向13朝該歸零感測件6移動。Step 84: Driving the second image capturing unit 4 to move along the moving direction 13 toward the return-to-zero sensing member 6.
步驟85：類似於步驟82，當該第二影像擷取單元4遮斷該歸零感測件6發出的光訊號時，就表示該第二影像擷取單元4已移動到對應該歸零感測件6的位置，進而被該處理單元5控制而停止移動，並將該第二影像擷取單元4的位置歸零。Step 85: Similar to step 82, when the second image capturing unit 4 blocks the optical signal emitted by the zeroing sensing component 6, it indicates that the second image capturing unit 4 has moved to the corresponding zeroing sense. The position of the measuring member 6 is controlled by the processing unit 5 to stop moving, and the position of the second image capturing unit 4 is reset to zero.
步驟86：驅動該第二影像擷取單元4沿該移動方向13移動，以偵測該光學膜11的該第二側邊112位置(如圖7)。Step 86: The second image capturing unit 4 is driven to move along the moving direction 13 to detect the position of the second side 112 of the optical film 11 (as shown in FIG. 7).
步驟87：處理與計算該第一影像擷取單元3與該第二影像擷取單元4的移動位置訊號，以得到該光學膜11的幅寬。Step 87: Process and calculate the movement position signals of the first image capturing unit 3 and the second image capturing unit 4 to obtain the width of the optical film 11.
需要說明的是，本發明光學膜幅寬線上測量方法的第二實施例，是利用該歸零感測件6感測該等基座31進行歸零，而每一影像擷取單元3、4的移動距離，則是透過該軌道2上的光學尺或磁性尺來偵測該等基座31的移動距離進行換算，若該等影像擷取單元3、4的影像擷取元件32都位於各基座31上的相同位置，則該等影像擷取元件32與相配合基座31側邊間的間距也相同，因此在計算該光學膜11幅寬時就不需要考量該等影像擷取元件32的位置差值補償。例如，參閱圖5、7，各影像擷取單元3、4的初始位置如圖5所示，當該歸零感測件6感測到各基座31右側邊時，將影像擷取單元3、4的位置歸零，因此該等影像擷取單元3、4的移動距離為歸零感測件6到各基座31右側邊的距離，但另一方面，該等影像擷取單元3、4偵測該光學膜11的第一側邊111、第二側邊112位置，是透過該等影像擷取元件32移動時，持續感測與比較該光學膜11的各部位的影像灰階值，來判斷是否已到達光學膜11的邊緣。故對於影像擷取單元3而言，其移動距離會被多算了距離X，對於影像擷取單元4而言，其移動距離會被少算距離Y，但由於該等影像擷取元件32在各基座31上的安裝位置一致，故多出的距離X等於缺少的距離Y，此時量測到的幅寬W1即為實際幅寬W。 It should be noted that the second embodiment of the method for measuring the width of the optical film on the optical film of the present invention is to use the zero-return sensing member 6 to sense the pedestals 31 for zeroing, and each of the image capturing units 3 and 4 The moving distance is determined by the optical scale or the magnetic ruler on the track 2 to detect the moving distance of the pedestals 31, and the image capturing elements 32 of the image capturing units 3 and 4 are located at each At the same position on the pedestal 31, the distance between the image capturing member 32 and the side of the mating pedestal 31 is also the same, so that the image capturing components need not be considered when calculating the width of the optical film 11. Position difference compensation of 32. For example, referring to FIGS. 5 and 7, the initial positions of the image capturing units 3 and 4 are as shown in FIG. 5. When the zeroing sensing member 6 senses the right side of each of the bases 31, the image capturing unit 3 is used. The position of the image capturing unit 3, 4 is zero, so the moving distance of the image capturing units 3, 4 is the distance from the zeroing sensing member 6 to the right side of each base 31, but on the other hand, the image capturing unit 3, 4 Detecting the positions of the first side 111 and the second side 112 of the optical film 11 to continuously sense and compare the image gray scale values of the optical film 11 when moving through the image capturing elements 32 To determine whether the edge of the optical film 11 has been reached. Therefore, for the image capturing unit 3, the moving distance is calculated by the distance X. For the image capturing unit 4, the moving distance is reduced by the distance Y, but since the image capturing elements 32 are The mounting positions on the pedestals 31 are identical, so the extra distance X is equal to the missing distance Y, and the measured width W1 is the actual width W.
參閱圖8，但若兩影像擷取元件32在相配合的基座31上的位置不同時，例如圖8中的影像擷取單元3的影像擷取元件32 鄰近其基座31右側，此時該影像擷取單元3被偵測到的移動距離就僅多出了距離Z(Z值相對於圖7的X值小)，而影像擷取單元4的移動距離被少算距離Y，此時就必須將各影像擷取元件32於各基座31上的位置差值進行補償校正，以圖8為例，必須計算出該兩影像擷取元件32的安裝位置差值，可定義為一個位差校正值A，且A=Y-Z，再將量測到的幅寬W2加上A，即為實際幅寬W。因此本發明之測量方法進行時，較佳地還可加入一個關於該等影像擷取元件32的位置差值補償之位差校正步驟，於本實施例中該位差校正步驟是以歸零後的該第一影像擷取單元3的影像擷取元件32偵測該光學膜11的該第一側邊111位置，再以歸零後的該第二影像擷取單元4的影像擷取元件32偵測該光學膜11的該第一側邊111位置，再計算該第一影像擷取單元3的該基座31的移動距離，與該第二影像擷取單元4的該基座31的移動距離的差值而得到該位差校正值A。而步驟87將透過量測該第一影像擷取單元3與該第二影像擷取單元4的移動位置而換算得到的該光學膜1幅寬，與該位差校正值A一併處理計算，以得到該光學膜1的實際幅寬W。實際應用上，該位差校正步驟也可以以歸零後的該第一影像擷取單元3與該第二影像擷取單元4偵測到第二側邊112位置之移動距離的差值為該位差校正值A，只要是以歸零後的該第一影像擷取單元3與該第二影像擷取單元4偵測相同的側邊位置的差值即可獲得該位差校正值A。Referring to FIG. 8, but if the positions of the two image capturing elements 32 on the mating base 31 are different, for example, the image capturing unit 32 of the image capturing unit 3 in FIG. Adjacent to the right side of the base 31, the moving distance of the image capturing unit 3 is only increased by the distance Z (the Z value is smaller than the X value of FIG. 7), and the image capturing unit 4 moves. The distance is less than the distance Y. In this case, the position difference of each image capturing component 32 on each of the pedestals 31 must be compensated and corrected. In the example of FIG. 8, the installation of the two image capturing components 32 must be calculated. The position difference can be defined as a difference correction value A, and A=YZ, and then the measured width W2 is added to A, which is the actual width W. Therefore, when the measuring method of the present invention is performed, a step of correcting the position difference for the position difference compensation of the image capturing elements 32 is preferably added. In this embodiment, the step of correcting the difference is to return to zero. The image capturing component 32 of the first image capturing unit 3 detects the position of the first side 111 of the optical film 11, and then returns the image capturing component 32 of the second image capturing unit 4 to the zero. The position of the first side 111 of the optical film 11 is detected, and the moving distance of the base 31 of the first image capturing unit 3 and the movement of the base 31 of the second image capturing unit 4 are calculated. The difference correction value A is obtained from the difference of the distances. Step 87 is performed by measuring the width of the optical film 1 converted by the first image capturing unit 3 and the moving position of the second image capturing unit 4, and processing the calculation together with the difference correction value A. The actual width W of the optical film 1 is obtained. In practical applications, the difference correction step may also detect that the difference between the moving distances of the second side 112 positions by the first image capturing unit 3 and the second image capturing unit 4 after the zeroing is The disparity correction value A can be obtained by detecting the difference between the same side position of the first image capturing unit 3 and the second image capturing unit 4 after the return to zero.
參閱圖9，本發明光學膜幅寬線上測量裝置的一第二實施例，也可以用於量測兩個光學膜11的幅寬，該等光學膜11可以捲繞於同一個滾輪12上而位於同一平面，也可以分別捲繞於兩個上下間隔的滾輪12上。由於本發明的影像擷取單元3、4的影像擷取元件32可以自由樞轉角度，因此可因應每一光學膜11所在位置而改變架設角度，以達到最佳的影像擷取效果。該等光學膜11也可以例如是以一台分條機將原本為同一捲的光學膜裁切分成兩捲所述光學膜11。為了測量該兩光學膜11的幅寬，可以於該軌道2上設置兩個左右相鄰的影像擷取組30，每一影像擷取組30包括如該第一實施例所述的兩個影像擷取單元3、4與一個歸零感測件6，每一影像擷取組30的該兩影像擷取單元3、4同樣可分別為一個第一影像擷取單元3與一個第二影像擷取單元4。Referring to Figure 9, a second embodiment of the optical film width line measuring device of the present invention can also be used to measure the width of two optical films 11, which can be wound on the same roller 12. They are located on the same plane, and can also be wound on two upper and lower spaced rollers 12, respectively. Since the image capturing component 32 of the image capturing unit 3, 4 of the present invention can be pivoted at an angle, the mounting angle can be changed according to the position of each optical film 11 to achieve an optimal image capturing effect. The optical film 11 can also be cut into two rolls of the optical film 11 by, for example, a slitting machine to cut an optical film which is originally the same roll. In order to measure the width of the two optical films 11, two left and right adjacent image capturing groups 30 may be disposed on the track 2, and each of the image capturing groups 30 includes two image capturing methods as described in the first embodiment. The unit 3, 4 and a return-to-zero sensing unit 6, the two image capturing units 3 and 4 of each image capturing group 30 can also be a first image capturing unit 3 and a second image capturing unit 4, respectively. .
繼續參閱圖9，本發明測量方法的一第三實施例，搭配上述第二實施例的測量裝置來測量所述兩個光學膜11幅寬，所述兩光學膜11是以幅寬較小的光學膜11為例，故本實施例的測量方法與該第一實施例的方法大致相同，只是必須進行左右兩組測量。一開始可先驅動該等影像擷取組30分別歸位到左右兩側，接著左側的該影像擷取組30可進行如同該第一實施例之方法的各步驟，以量測左側的該光學膜11幅寬，接續換右側的該影像擷取組30進行如同該第一實施例之方法的各步驟，以量測右側的該光學膜11的幅寬。本實施例各步驟進行時，不以上述順序為例，例如也可以先測量右側的光學膜11，再測量左測的光學膜11。此外，該處理單元5(圖2)可以於每一光學膜11測量完後就進行幅寬計算，或者也可以等到該兩光學膜11都測量完後，再一起計算各光學膜11幅寬。因此，本發明之測量方法，在進行時不須限制步驟順序。With continued reference to FIG. 9, a third embodiment of the measuring method of the present invention is used to measure the width of the two optical films 11 in combination with the measuring device of the second embodiment, and the two optical films 11 are small in width. The optical film 11 is taken as an example, so the measuring method of the present embodiment is substantially the same as the method of the first embodiment, except that two sets of left and right measurements must be performed. The image capturing group 30 can be driven to the left and right sides, respectively, and then the image capturing group 30 on the left side can perform the steps of the method of the first embodiment to measure the optical film 11 on the left side. The width, the image capturing group 30 on the right side is successively subjected to the steps of the method of the first embodiment to measure the width of the optical film 11 on the right side. When the steps of the present embodiment are performed, the above sequence is not taken as an example. For example, the optical film 11 on the right side may be measured first, and the optical film 11 on the left side may be measured. In addition, the processing unit 5 (Fig. 2) may perform the width calculation after each optical film 11 is measured, or may wait until the two optical films 11 have been measured, and then calculate the width of each optical film 11 together. Therefore, the measurement method of the present invention does not need to limit the order of steps while performing.
參閱圖10，本發明測量方法的一第四實施例，搭配上述第二實施例的測量裝置來測量所述兩個光學膜11幅寬，本實施例是以幅寬較大的光學膜11為例，故本實施例的測量方法與該第二實施例的方法大致相同，必須搭配各個歸零感測件6使用。本實施例同樣可先驅動該等影像擷取組30分別歸位到左右兩側，接著該兩影像擷取組30分別進行一次如同該第二實施例的測量方法後，就可以分別得到該兩光學膜11的幅寬。Referring to FIG. 10, a fourth embodiment of the measuring method of the present invention is used to measure the width of the two optical films 11 in combination with the measuring device of the second embodiment. In this embodiment, the optical film 11 having a larger width is used. For example, the measurement method of the present embodiment is substantially the same as the method of the second embodiment, and must be used in conjunction with each of the zero-return sensing members 6. In this embodiment, the image capturing groups 30 can be driven to the left and right sides, respectively. Then, the two image capturing groups 30 are respectively subjected to the measurement method of the second embodiment, and the two optical films can be respectively obtained. The width of 11 is.
由上述各實施例的說明可知，本發明藉由能各自獨立地沿該移動方向13來回移動，且可樞轉以改變拍攝角度的該等影像擷取單元3、4的配合，對於各種不同尺寸的光學膜11，或者從不同位置傳送而來的光學膜11，都能方便地進行量測，而且測量方式與步驟順序不須限制，只要能達到測量目的即可。應用上也可以依光學膜11的數量，增加影像擷取單元3、4的數量。本發明利用具有特定邏輯之程式方法做校正補償及定位，搭配裝有精密位置回饋元件以及馬達等元件之線性模組軌道2，連結可電動調節偵測角度及距離之影像擷取單元3、4，能即時計算並持續監控光學膜11之寬度，確實達到本發明的目的。As can be seen from the description of the above embodiments, the present invention cooperates with the image capturing units 3, 4 which can be moved back and forth independently in the moving direction 13 and can be pivoted to change the shooting angle for various sizes. The optical film 11 or the optical film 11 transferred from different positions can be easily measured, and the measurement method and the order of the steps are not limited as long as the measurement purpose can be achieved. In application, the number of image capturing units 3, 4 can also be increased depending on the number of optical films 11. The invention utilizes a program method with specific logic to perform correction compensation and positioning, and is matched with a linear module track 2 equipped with a precise position feedback component and a motor and the like, and an image capturing unit 3, 4 capable of electrically adjusting the detection angle and distance. The width of the optical film 11 can be calculated and continuously monitored in real time, and the object of the present invention is indeed achieved.
惟以上所述者，僅為本發明之實施例而已，當不能以此限定本發明實施之範圍，凡是依本發明申請專利範圍及專利說明書內容所作之簡單的等效變化與修飾，皆仍屬本發明專利涵蓋之範圍內。However, the above is only the embodiment of the present invention, and the scope of the invention is not limited thereto, and all the equivalent equivalent changes and modifications according to the scope of the patent application and the patent specification of the present invention are still The scope of the invention is covered.
11‧‧‧光學膜11‧‧‧Optical film
111‧‧‧第一側邊111‧‧‧First side
112‧‧‧第二側邊112‧‧‧Second side
12‧‧‧滾輪12‧‧‧Roller
13‧‧‧移動方向13‧‧‧ moving direction
2‧‧‧軌道2‧‧‧ Track
30‧‧‧影像擷取組30‧‧‧Image Capture Group
3‧‧‧影像擷取單元3‧‧‧Image capture unit
31‧‧‧基座31‧‧‧ Pedestal
32‧‧‧影像擷取元件32‧‧‧Image capture components
33‧‧‧座體33‧‧‧ body
4‧‧‧影像擷取單元4‧‧‧Image capture unit
5‧‧‧處理單元5‧‧‧Processing unit
6‧‧‧歸零感測件6‧‧‧ Zero-sensing parts
71~76‧‧‧步驟71~76‧‧‧Steps
81~87‧‧‧步驟81~87‧‧‧Steps
本發明之其他的特徵及功效，將於參照圖式的實施方式中清楚地呈現，其中： 圖1是一立體圖，說明本發明光學膜幅寬線上測量裝置的一第一實施例、一光學膜與一滾輪的相對關係； 圖2是圖1的側視示意圖； 圖3是一示意圖，說明該第一實施例與該光學膜的元件相對關係； 圖4是一步驟流程圖，說明本發明光學膜幅寬線上測量方法的一第一實施例； 圖5是一類似圖3的示意圖，說明該第一實施例之裝置與一幅寬較大的光學膜的元件相對關係； 圖6是一步驟流程圖，說明本發明光學膜幅寬線上測量方法的一第二實施例； 圖7是一類似圖5的示意圖，說明該第一實施例之裝置搭配該第二實施例之方法進行量測後的二個影像擷取單元的位置，且圖7說明每一影像擷取單元的一影像擷取元件位於相配合的一基座上的位置相同； 圖8是一類似圖7的示意圖，說明該等影像擷取單元的該等影像擷取元件位於各基座上的位置不同； 圖9是一類似圖3的示意圖，說明本發明光學膜幅寬線上測量方法的一第三實施例，用於量測兩個光學膜的幅寬；及 圖10是一類似圖9的示意圖，說明本發明光學膜幅寬線上測量方法的一第四實施例，用於量測兩個較大的光學膜的幅寬。Other features and effects of the present invention will be apparent from the following description of the drawings, wherein: Figure 1 is a perspective view showing a first embodiment of an optical film width measuring device of the present invention, an optical film Figure 2 is a side view of Figure 1; Figure 3 is a schematic view showing the relative relationship between the first embodiment and the optical film; Figure 4 is a flow chart showing the optical of the present invention A first embodiment of a method for measuring a film width line; FIG. 5 is a schematic view similar to FIG. 3, illustrating the relative relationship between the device of the first embodiment and a component of a wider optical film; FIG. 6 is a step BRIEF DESCRIPTION OF THE DRAWINGS FIG. 7 is a schematic view similar to FIG. 5, illustrating a device similar to that of FIG. 5, illustrating the apparatus of the first embodiment after being measured by the method of the second embodiment. The position of the two image capturing units is the same, and FIG. 7 illustrates that an image capturing component of each image capturing unit is located at the same position on a mating base; FIG. 8 is a schematic view similar to FIG. Waiting The image capturing components of the capturing unit are located at different positions on the pedestal; FIG. 9 is a schematic view similar to FIG. 3, illustrating a third embodiment of the measuring method of the optical film width line of the present invention for measuring The width of the two optical films; and FIG. 10 is a schematic view similar to FIG. 9 illustrating a fourth embodiment of the method for measuring the width of the optical film of the present invention for measuring the width of two larger optical films .
11‧‧‧光學膜 11‧‧‧Optical film
111‧‧‧第一側邊 111‧‧‧First side
112‧‧‧第二側邊 112‧‧‧Second side
12‧‧‧滾輪 12‧‧‧Roller
13‧‧‧移動方向 13‧‧‧ moving direction
2‧‧‧軌道 2‧‧‧ Track
3‧‧‧影像擷取單元 3‧‧‧Image capture unit
31‧‧‧基座 31‧‧‧ Pedestal
32‧‧‧影像擷取元件 32‧‧‧Image capture components
33‧‧‧座體 33‧‧‧ body
4‧‧‧影像擷取單元 4‧‧‧Image capture unit
6‧‧‧歸零感測件 6‧‧‧ Zero-sensing parts
Claims (10)
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| TW105140065A TWI614480B (en) | 2016-12-05 | 2016-12-05 | Optical film width line measuring device and measuring method |
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| TW105140065A TWI614480B (en) | 2016-12-05 | 2016-12-05 | Optical film width line measuring device and measuring method |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54161963A (en) * | 1978-06-12 | 1979-12-22 | Mitsubishi Electric Corp | Size measuring apparatus |
| US4490617A (en) * | 1979-11-26 | 1984-12-25 | European Electronic Systems Limited | Optical width measuring system using two cameras |
| JPS63282607A (en) * | 1987-05-14 | 1988-11-18 | Kawasaki Steel Corp | Measuring apparatus for width of belt-shaped substance |
| JPH03226609A (en) * | 1990-01-31 | 1991-10-07 | Gunze Ltd | Measuring method of width of sheet material |
| JPH03296606A (en) * | 1990-04-17 | 1991-12-27 | Mitsubishi Heavy Ind Ltd | Measuring apparatus of width of band-shaped object |
| CN1061908C (en) * | 1997-08-28 | 2001-02-14 | 宝山钢铁(集团)公司 | Anti-interference method and device for width measuring instrument used in hot rolling, finish rolling and winding. |
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2016
- 2016-12-05 TW TW105140065A patent/TWI614480B/en active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54161963A (en) * | 1978-06-12 | 1979-12-22 | Mitsubishi Electric Corp | Size measuring apparatus |
| US4490617A (en) * | 1979-11-26 | 1984-12-25 | European Electronic Systems Limited | Optical width measuring system using two cameras |
| JPS63282607A (en) * | 1987-05-14 | 1988-11-18 | Kawasaki Steel Corp | Measuring apparatus for width of belt-shaped substance |
| JPH03226609A (en) * | 1990-01-31 | 1991-10-07 | Gunze Ltd | Measuring method of width of sheet material |
| JPH03296606A (en) * | 1990-04-17 | 1991-12-27 | Mitsubishi Heavy Ind Ltd | Measuring apparatus of width of band-shaped object |
| CN1061908C (en) * | 1997-08-28 | 2001-02-14 | 宝山钢铁(集团)公司 | Anti-interference method and device for width measuring instrument used in hot rolling, finish rolling and winding. |
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| TW201821759A (en) | 2018-06-16 |
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