TW200821558A - Apparatus for detecting the orientation of polarization axis and the method thereof - Google Patents

Apparatus for detecting the orientation of polarization axis and the method thereof Download PDF

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TW200821558A
TW200821558A TW95142277A TW95142277A TW200821558A TW 200821558 A TW200821558 A TW 200821558A TW 95142277 A TW95142277 A TW 95142277A TW 95142277 A TW95142277 A TW 95142277A TW 200821558 A TW200821558 A TW 200821558A
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Taiwan
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light
detecting
polarizing
polarization axis
polarization
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TW95142277A
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Chinese (zh)
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TWI310831B (en
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Yu-Ping Lan
Huay-Chung Liou
Wei-Cheng Chang
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Ind Tech Res Inst
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Abstract

An apparatus for detecting the orientation of polarization axis is disclosed, which comprises: a light source, for emanating a light beam; a rotatable analyzer with a specific polarization axis of known orientation; and a photo detector, for receiving the light beam transmitting the analyzer; wherein the analyzer and the photo detector are arranged sequentially on the propagating path of the light beam. By placing a device-under-test (DUT) between the light source and the analyzer for enabling the light emanating from the light source to pass the light source and the analyzer in sequence and then reaches the photo detector, and as the intensity of light detected by the photo detector is varying with respect to the rotation of the analyzer, the orientation of the polarization axis of the DUT can be detected as soon as the maximum light intensity is measured. The aforesaid apparatus is efficient in that it is simple-in-structure, low cost, ease-to-operate while capable of acquiring result rapidly.

Description

200821558 九、發明說明: 【發明所屬之技術領域】 Ο u200821558 IX. Description of invention: [Technical field to which the invention belongs] Ο u

本發明係有關於一種偏振光軸檢測裝置,尤指一 由偵測-旋轉之偏振片與待檢測偏振元件偏光軸向一致= 之角度’用以得知該待檢測偏振元件偏光轴向之檢測裝: 該襄置之結構簡單、成本低,檢測方式簡單,可快速檢 偏振元件偏振㈣’適於偏振元件製造及應料相關領I 【先前技術】 按,液晶顯示器偏光膜對於液晶顯示 度 :影響,然由於目前-般面板製造業者使用之偏光 域商裁㈣提供’裁切之好壞(料偏振綠 :致性無法立即判斷’往往在液晶顯示器組合完成;: &時才能發現,此時只能報麻卞万丨Λ A 欢 失。 此報廢或列入次級品,造成經濟損 曰t因亡:即使偏光膜製造業者已有出貨檢驗,但部分液 不A業者仍會於偏域進料時,再次對偏光膜 度,往祕料檢測裝置為了達到高檢測解析 珙 0夕70件組成,並配合複雜之運算判斷以分 「叙測結果’如圖~所示美國發明專利第5247176號 外:!::6二la= rlarimeter」,該檢測裝置20包括红 片田、、、’束斷續器23、相位延遲片30、31、偏振 28 = 43、直流馬達“、多功能電表 光偵測為27、39及電腦47,待測物33設置於相 6 200821558 .位延遲片3G、31之間,利用傅立葉分析運算判斷結果;據 . 上可知,該檢測裝置20之組成構件多、複雜,成本高、維 護維修困難,且後端運算需用電腦處理,也必須搭配複雜 軟硬體,整體觀之,前述該習知專利案所提供之裝置及方 法雖可對偏光膜進行檢測,然其複雜之運算及分析,嚴重 影響檢測程序與效率。 因此,如何能有一種成本低、檢測方式簡單,可快速 檢測偏光膜之檢喊置,係聽賴製造及應韵關領域 ( 業者迫切需要解決之重大課題。 、’ 【發明内容】 有鑑於習知技術之缺失,本發明之主要目的在於提 一種偏振光軸檢測裝置’其結構簡單、成本低,作 簡單、快速,可提高檢測效率。 木 式 為達到上述目的,本發明提出一種偏振 及其檢測方法,其包含—光源可投射出光線,該=衣置 投射路控上依序設有_檢偏振片以及—光偵測模組 偏振片係可旋轉地且具有一定角度之偏光軸向,哕—D"、双 模組係用以接受通過該檢偏振片之光線;將待檢測=測 件設置於該光源與該檢偏振片之間,使光源投射出振凡 • 序通過該待檢測偏振元件、該檢偏振片後,到達誃九線依 模組,藉由該旋轉之檢偏振片造成穿透光強度之=光偵’則 該光偵測模組判斷產生最大穿透光強度時之角产,化、’由 待測偏振元件之偏光軸之角度。 X,即為該 較佳的是,該檢偏振片係由馬達、傳動皮 中聲驅動震 200821558 置驅動旋轉。 較佳的是,該檢偏振片之旋轉軸向係與該光投射路徑 相互平行。 較佳的是,該檢偏振片係可作360度全圓周連續旋轉。 較佳的是,該光源與該檢偏振片之間設有一承載台, 係用以承載待檢測偏振元件。 較佳的是,該承載台上設有圓周角度指示刻度,用以 指示該待檢測偏振元件之置放角度。 較佳的是,該光源可為自然光或線偏振光(Li nearly Polarized Light)其中之一或其組合。 較佳的是,該光偵測模組包含: 一光偵測器,係用以偵測通過該檢偏振片之光穿透率 並產生信號; 一控制單元,係用以接收該光測器所偵測之光穿透率 信號,並可對該信號進行分析處理。 較佳的是,該控制單元更包含一顯示裝置,該顯示裝 置係用以顯示該控制單元所分析處理之信號内容。 較佳的是,該控制單元係與該檢偏振片電性連接,用 以控制該檢偏振片。 較佳的是,該光源更包括: 一透鏡,係設置於該光源之光投射路徑上並可直接供 光線通過; 一線性偏光器,係用以接收通過該透鏡之光線,用以 調整該光線朝向一定方向偏振。 8 200821558 較佳的是,該魏偏絲·整之域 打於該檢偏振片之旋轉軸心方向。 出方向係平 為達到上述目的,本發明更提出—種 法,其包含: 烏振先季由檢測方 ⑷將-光源所投射之光線通過—待 成第一穿透光; 』坶振7L件,形 (b)將該第-穿透光投射至—可旋轉之檢 Ο 第二穿透光; 派片,形成 (C )將該第二穿透光投射至一光偵測模組, 模組偵測該第二穿透光強度。 Μ光偵測 較佳的是,該步驟(a)中,該光源所投射之 =過-透鏡、-線性偏光器後,再通過該待檢測偏振= 光αΙΓί是,該步驟⑷巾,該㈣可為自Μ或線偏振 九Uinearly p〇iarized Light)其中之一或其組人 一較佳的是,該步驟(a)中,該待檢測偏振元件=設置於 一承載台上。 、u 、 -較佳的是,該承載台上設有圓周角度指示, 指不該待檢測偏振元件之置放角度。 又 較佳的是,該步驟(b)中,該檢偏振片係可作36〇产八 圓周連績旋轉。 ^佳的是,該步驟⑹中’該第—穿透光之行進方向係 入遠k偏振片之旋轉軸向平行。 較佳的是,該步驟(b)中,該檢偏振片係由馬達、傳動 9 200821558 皮帶等驅動裝置驅動旋轉。 較佳的是,該步驟(C)中,該光偵測模組包含: 一光偵測器,係用以偵測該第二穿透光之強度並產生 信號; 一控制單元,係用以接收該光測器所偵測之光強度信 號,並可對該信號進行分析處理。 較佳的是,該步驟(C)後更包括一步驟(d),由該控制 單元紀錄該檢偏振片之旋轉角度,以及各旋轉角度之光強 度,並擷取最大光強度時之該檢偏振片之旋轉角度。 較佳的是,該控制單元更包含一顯示裝置,該顯示裝 置係用以顯示該控制單元所分析處理之信號内容。 較佳的是,該控制單元係與該檢偏振片電性連接,用 以控制該檢偏振片。 為達到上述目的,本發明再提出一種偏振光軸檢測裝 置,係用以檢測偏振元件^该檢測裝置包含· 一機台,其具有一主體; 一光源,係設置於該主體上方,該光源可投射出光線; 一檢偏振片,係設置於該機台之主體内,該係可旋轉 地設置於該光源之光投射路徑上並可供光線通過,其具有 一定角度之偏光轴向; 一光偵測模組,係設置於該機台之主體内,係用以接 受通過該檢偏振片之光線。 較佳的是,該機台之主體頂部設有一承載台,係用以 承載待檢測偏振元件,該承載台聚有一穿透部可供光線通 過到達該機台之主體内。 200821558 較佳的是,該承載台外圍之魅朗部上設有圓周角 度指示刻度,用以指示該待檢測偏振元件之置放角度。 較佳的是,該光源、透鏡及線性偏光器係設置於一懸 臂内,該光源所發出之光線係可投向該檢偏振片。 為使貴審查委員對於本發明之結構目的和功效有更 進一步之了解與認同,茲配合圖示詳細說明如后。 C: (/ 【實施方式】 以下將參照隨附之圖式來描述本發明為達成目的所使 _技術手段與功效,而以下圖式所列舉之實施例僅為輔 助既明’以利㈣查委員瞭解,但本案之技術手段並不限 於所列舉圖式。 請參閱圖二所示,本發明提供之偏振光軸檢測裝置 Μ,其主要係由-光源20、-檢偏振片3()及—光偵測模 組40所構成,該光源20可為自然光或線偏振光(une㈣ ^arizedLlght)其中之—或其組合,於該光源2()與該檢 偏,片30之間設置-待檢測偏振元件5〇,該待檢測偏振 凡件5+0係為具有一定偏光軸向之片材,例如液晶顯示器之 偏光膜,由該光源20發出光線l〇,該光線L〇通過 測偏振元件5 0後,形成一第—穿透光L丨。 ^寻松 ,第-穿透光u可繼續前進並穿透該檢偏振片3〇,用 ,第一牙透光L2,该檢偏振片3〇係連接一驅動裝置(圖 =示出),如馬達、傳動皮帶等等,藉由該驅動裝置驅; 可作360度全圓周連續旋轉。 - 200821558 5亥第一穿透光L2再繼續前進至該光偵測模組4〇,由該 光偵測模組40偵測該第二穿透光L2之強度。 理想狀況下,該光線Lo、該第一穿透光Li、該第二穿 透光L2係為一筆直光線,其光投射路徑c係與該檢偏振片 30之旋轉軸向相互平行,為使該光源2〇發出之光線可 上 孩无祢可配合 被充分投射至該待檢測偏振元件The invention relates to a polarization axis detecting device, in particular to detecting the polarization axis of the polarization component to be detected by detecting and rotating the polarizing plate and the polarization direction of the polarization component to be detected. Packing: The structure of the device is simple, low in cost, simple in detection mode, and can quickly detect polarization of polarizing elements. (4) Suitable for manufacturing of polarizing elements and related materials. [Prior Art] Press, liquid crystal display polarizing film for liquid crystal display: The effect, however, is due to the current polarization of the panel makers using the polarized domain (4) to provide 'cutting good or bad (material polarization green: the inability to judge immediately) is often done in the LCD display combination;: & It can only be reported to Ma Wan Wan A. Lost. This scrapped or included in the substandard, causing economic damage t death: even if the polarizer manufacturer has shipped inspection, but some liquids will not be in the domain When feeding, the degree of polarizing film is again applied to the secret material detecting device in order to achieve high detection and analysis, and 70 pieces of composition are combined with complicated calculations to divide the "rhesing result" as shown in the figure. Japanese Patent No. 5247176::::6 two la= rlarimeter", the detecting device 20 includes a red sheet, a 'beam eliminator 23, a phase retarder 30, 31, a polarization 28 = 43, a DC motor", and more The function meter light detection is 27, 39 and the computer 47, and the object to be tested 33 is set between the phase 6 200821558 and the bit retardation film 3G, 31, and the result is judged by Fourier analysis; according to the above, the composition of the detecting device 20 is known. The components are complex, complicated, costly, difficult to maintain and maintain, and the back-end computing needs to be processed by a computer. It must also be combined with complex software and hardware. As a whole, the device and method provided by the above-mentioned conventional patent case can be used for the polarizing film. Carrying out the test, but its complicated calculation and analysis seriously affect the testing procedure and efficiency. Therefore, how can there be a low cost, simple detection method, and can quickly detect the detection of the polarizing film, which is the field of manufacturing and Ying Yunguan. (There is a major problem that the industry urgently needs to solve. [Invention] In view of the lack of the prior art, the main object of the present invention is to provide a polarization axis detecting device which has a simple structure. The low value is simple and fast, and the detection efficiency can be improved. In order to achieve the above object, the present invention provides a polarization and a detection method thereof, which comprise: a light source can project light, and the = projection projection path is sequentially arranged. The _detecting polarizer and the light detecting module polarizing plate are rotatably and have a polarizing axial direction of a certain angle, and the 模组-D", the dual module is for receiving the light passing through the polarizing plate; The measuring component is disposed between the light source and the detecting polarizing plate, so that the light source is projected to pass through the polarizing element to be detected, and the polarizing plate is detected, and then reaches the 誃9 line according to the module, and the rotation is detected. The polarizing plate causes the transmitted light intensity = light detection. The light detecting module determines the angle at which the maximum transmitted light intensity is generated, and the angle of the polarizing axis of the polarizing element to be tested. X, that is, preferably, the polarizer is driven to rotate by a sound driving vibration in the motor and the transmission skin. Preferably, the rotational axis of the polarizer is parallel to the light projection path. Preferably, the polarizer is continuously rotated 360 degrees in a full circumference. Preferably, a carrying platform is disposed between the light source and the detecting polarizer for carrying the polarizing element to be detected. Preferably, the stage is provided with a circumferential angle indicating scale for indicating the placement angle of the polarizing element to be detected. Preferably, the light source may be one of natural light or Li nearly Polarized Light or a combination thereof. Preferably, the light detecting module comprises: a light detector for detecting the light transmittance of the polarizing plate and generating a signal; and a control unit for receiving the photodetector The detected light transmittance signal can be analyzed and processed. Preferably, the control unit further comprises a display device for displaying the signal content processed by the control unit. Preferably, the control unit is electrically connected to the polarizer for controlling the polarizer. Preferably, the light source further comprises: a lens disposed on the light projection path of the light source and directly for transmitting light; a linear polarizer for receiving light passing through the lens for adjusting the light Polarized towards a certain direction. 8 200821558 Preferably, the domain of the filament is in the direction of the axis of rotation of the polarizer. In order to achieve the above object, the present invention further proposes a method comprising:: Wu Zhenxian is passed by the detecting side (4) to pass the light projected by the light source - to be the first transmitted light; (b) projecting the first through light to the rotatable inspection second transmission light; sending a film to form (C) projecting the second transmitted light to a light detecting module, The group detects the intensity of the second transmitted light. Preferably, in the step (a), the light source is projected by the over-lens, the linear polarizer, and then the polarization to be detected is determined by the light source, the step (4), and the (four) Preferably, in one or a group of nine or nine polarization zones, in the step (a), the polarization element to be detected is disposed on a carrier. , u, - preferably, the stage is provided with a circumferential angle indication, which means that the angle of placement of the polarizing element to be detected is not to be detected. Further preferably, in the step (b), the polarizer is capable of rotating at a circumference of 36 degrees. Preferably, in the step (6), the direction of travel of the first through light is parallel to the rotational axis of the far k polarizer. Preferably, in the step (b), the polarizer is driven to rotate by a driving device such as a motor or a transmission 9 200821558 belt. Preferably, in the step (C), the light detecting module comprises: a light detector for detecting the intensity of the second transmitted light and generating a signal; and a control unit for Receiving the light intensity signal detected by the photodetector, and analyzing and processing the signal. Preferably, after the step (C), the method further comprises a step (d) of recording, by the control unit, the rotation angle of the polarizing plate and the light intensity of each rotation angle, and detecting the maximum light intensity. The angle of rotation of the polarizer. Preferably, the control unit further comprises a display device for displaying the signal content processed by the control unit. Preferably, the control unit is electrically connected to the polarizer for controlling the polarizer. In order to achieve the above object, the present invention further provides a polarization axis detecting device for detecting a polarizing element. The detecting device comprises: a machine having a main body; a light source disposed above the main body, the light source being Projecting a light beam; a polarizing plate is disposed in the main body of the machine, the system is rotatably disposed on the light projection path of the light source and is allowed to pass light, and has a polarized axial direction of a certain angle; The detecting module is disposed in the main body of the machine and is configured to receive light passing through the polarizing plate. Preferably, the top of the main body of the machine is provided with a carrying platform for carrying the polarizing component to be detected, and the carrying platform has a penetrating portion for the light to pass through to the main body of the machine. Preferably, a charm angle indicator is provided on the periphery of the periphery of the carrier to indicate the placement angle of the polarization element to be detected. Preferably, the light source, the lens and the linear polarizer are disposed in a cantilever, and the light emitted by the light source can be directed to the polarizer. In order to enable the reviewing committee to have a better understanding and approval of the structural purpose and efficacy of the present invention, the detailed description is as follows. C: ( / [Embodiment] Hereinafter, the present invention will be described with reference to the accompanying drawings, and the embodiments shown in the following drawings are only for the purpose of aiding the following. The members understand, but the technical means of the present invention are not limited to the illustrated figures. Referring to Figure 2, the polarization axis detecting device provided by the present invention mainly comprises a light source 20, a polarizing plate 3 () and a light detecting module 40, wherein the light source 20 can be natural light or linearly polarized light (une (4) ^arizedLlght), or a combination thereof, between the light source 2 () and the detection bias, the sheet 30 - Detecting the polarizing element 5 〇, the polarization detecting member 5+0 is a sheet having a certain polarization axis, such as a polarizing film of a liquid crystal display, and the light source 20 emits light 〇, and the light ray passes through the polarizing element. After 50, a first-passing light L丨 is formed. ^Searching for the first, the penetrating light u can continue to advance and penetrate the polarizing plate 3〇, the first tooth transmits L2, and the polarizing plate 3 连接 is connected to a drive device (figure = shown), such as a motor, drive belt, etc., by the drive The device drive can be rotated 360 degrees in a full circumference. - 200821558 5 first pass light L2 and then proceed to the light detecting module 4〇, the light detecting module 40 detects the second wearing The light beam Lo, the first transmitted light Li, and the second transmitted light L2 are a straight ray, and the light projection path c is the rotation axis of the polarizing plate 30. Parallel to each other, so that the light emitted by the light source 2 can be fully projected to the polarization element to be detected

一透鏡21、一線性偏光器22,藉由該透鏡21準直/再藉 由。亥線性偏光裔22使光線Lo形成線性偏振光。 該光偵測模組40,係包含相互電性連接之一光偵測器 41、一控制單元42,以及一顯示裝置43,該光偵測器41 I偵測該第二穿透光L2之強度,並產生信號傳送至該控制 早疋42,該控制單元42接收信號後,可對該信號進行分 析處理,如一般人士所熟知,該控制單元42可為一單晶片 或電腦處理裝置或賴,對賴收之信號進行分析處=或 【己錄,該控制單元42亦電性連接驅動該檢偏振片3〇之驅 動1置’用以控制調整該檢偏振片3〇之轉速,同時,可將 =析處理之信號内容、參數設定等結果顯示於該顯示裝置 43上,該顯示裝置43同時可用以顯示電源連接狀 整體機組之運作狀態。 〜〆 =j振光軸檢測裝置1G之具體構造,請同時㈣ 示較佳實施例’其具有一機台60,該機台6〇 制述該檢物30、該光_器41及控 該主體61内部,該顯示裝置43則設置 6171部設有—懸臂62, 具有—端部621,該端部奶係朝向該主體61 200821558 . 之頂部,前述該光源20、該透鏡21,及線性偏光器22則 • 可$又置於该懸臂62之端部621,且該光源20可投射光線A lens 21 and a linear polarizer 22 are collimated/reduced by the lens 21. The linear linear polarizer 22 causes the light Lo to form linearly polarized light. The light detecting module 40 includes a photodetector 41 electrically connected to each other, a control unit 42, and a display device 43. The photodetector 41 detects the second transmitted light L2. The intensity is transmitted to the control early 42. After receiving the signal, the control unit 42 can analyze the signal. As is well known to those skilled in the art, the control unit 42 can be a single chip or a computer processing device. The analysis signal of the received signal = or [recorded, the control unit 42 is also electrically connected to drive the polarizing plate 3 〇 drive 1 set ' to control the rotation speed of the polarizing plate 3 ,, at the same time, The result of the signal content, parameter setting and the like of the analysis processing can be displayed on the display device 43, and the display device 43 can be simultaneously used to display the operating state of the entire unit in the power connection state. ~=== The specific structure of the vibrating shaft detecting device 1G, and at the same time (4) shows a preferred embodiment 'which has a machine table 60 that describes the sample 30, the light unit 41, and the control unit Inside the main body 61, the display device 43 is provided with a cantilever 62 having a cantilever 62 having an end portion 621 facing the top of the main body 61 200821558 . The light source 20, the lens 21, and the linear polarized light. The device 22 can be placed at the end 621 of the cantilever 62, and the light source 20 can project light.

Lo於该主體61之頂部,因此,可於該主體61頂部相對應 於該光源20投射光線處,為一承載台63,該承載台⑽相 對應於光線Lo投射處設有一透空部631,該承載台⑽係用 以設置並承載該待檢測偏振元件5〇,於該承載台63周圓 之該主體61頂部設有圓周角度指示刻度64,用以指示該 待檢測偏振兀件50之置放角度,光線Lo可穿透該待檢測 偏振元件50再由該透空部631進入該主體6卜再穿透設 置於該主體61内之該檢偏振片3〇、該光偵測器41(顯示於 圖二中),由該光偵測器41偵測穿透光之強度,並將結果 顯不於該顯不裝置43上;該機台6〇可配合指示燈65顯示 作動狀況,設置電源連接線(圖中未示出)連接外部電路, 或可設置其他連接插座以供連接其他裝置,此習知技術不 予贅述。 〇 據上述本發明之結構,可歸納本發日㈣讀測偏振光 ’軸之方法,其包含以下主要步驟(請配合參閱圖二)·· (a) 將該光源20所投射之光線L〇通過待該檢測偏振元件 50,形成第一穿透光Li ; (b) 該第-穿透光Ll投射至可旋轉之該檢偏振片%,形成 第二穿透光L2 ; (C) 4第一牙透光L2投射至該光偵測模組4〇,由該光偵測 模組4 0之該光偵測器4丨偵測該第二穿透光強度l ^。 由於該檢偏振片30與該線性偏光片22均具有偏光軸 向’而該檢偏振片30與驅動其旋轉之驅動裝置必須歸零修 13 200821558 正角度’使該檢偏振片30與該線性口口 向相同之初始狀態,該待檢測偏振-疋态22處於偏光轴 驅動該檢偏振片30旋轉。 ^凡件50固定擺設,而後 於a亥才双偏振片3 0旋轉之過程 錄該檢偏振片30之旋轉角度,°以 。亥控制單元42可紀 當該檢偏振片30與該待檢測偏振-各旋轉角度之光強度, 時,其光穿透率最大,可由該控制=件50之偏光軸向一致Lo is at the top of the main body 61, and therefore, at the top of the main body 61, corresponding to the light source 20, a light-receiving portion 63 is provided. The loading platform (10) is provided with a transparent portion 631 corresponding to the projection of the light ray Lo. The carrying platform (10) is configured to set and carry the polarizing element 5 to be detected, and a circumferential angle indicating scale 64 is disposed on the top of the main body 61 of the circumference of the carrying platform 63 for indicating the position of the polarizing element 50 to be detected. The light beam Lo can penetrate the polarizing element 50 to be detected and enter the main body 6 from the transparent portion 631 to penetrate the polarizing plate 3〇 disposed in the main body 61, and the photodetector 41 ( As shown in FIG. 2, the photodetector 41 detects the intensity of the transmitted light, and the result is not displayed on the display device 43. The machine 6 can be combined with the indicator light 65 to display the actuation status. A power connection cable (not shown) is connected to an external circuit, or other connection sockets may be provided for connecting other devices, and the prior art is not described herein. According to the structure of the present invention described above, the method for reading the polarization 'axis of the present day can be summarized, which includes the following main steps (please refer to FIG. 2). (a) The light projected by the light source 20 is 〇 The first penetrating light Li is formed by the detecting polarizing element 50; (b) the first penetrating light L1 is projected to the rotatable polarizing plate % to form the second penetrating light L2; (C) 4 A light-transmitting L2 is projected to the light detecting module 4, and the light detecting device 4 of the light detecting module 40 detects the second transmitted light intensity l^. Since the polarizing plate 30 and the linear polarizer 22 both have a polarizing axial direction, the polarizing plate 30 and the driving device for driving the rotation thereof must be zero-repaired 13 200821558 positive angle 'to make the polarizing plate 30 and the linear port In the same initial state of the mouth, the polarization-deformed state 22 to be detected is in the polarization axis to drive the polarization detecting plate 30 to rotate. ^ The workpiece 50 is fixedly mounted, and then the process of rotating the polarizing plate 30 is recorded in the process of rotating the double polarizing plate 30, and the angle of rotation of the polarizing plate 30 is measured. The control unit 42 can determine the light transmittance of the polarizing plate 30 and the polarization to be detected at each rotation angle, and the light transmittance thereof is the largest, and the polarization axis of the control member 50 can be consistent.

C Ο 時之該檢偏振片30之旋轉角以步早^42掏取最大光強度 不裝置43上;如此,即可快逮檢測,、亚顯示於該顯 之偏光軸向。 ' A、双測偏振元件5〇 :法,ί包以光置,其檢: 上依序設有一檢偏振片 以及—光铺測^組原,光技射路徑 可旋轉地且具有—定肖度之偏缸二、、、且,該檢偏振片係 以接受通過μ ^, 向,該光偵測模組係用 該光得二;振片Γ線;將待檢測_^ 待檢挪偏片1’使光源投射出光線依序通過該 由該旋轉sr該^片後’到達該光價測模組,藉 模組‘二,片邊牙透光強度之變化,由該光偵測 元件之偏h最大穿#強度時之角度’即為該待測偏振 操作方】3之角度;該檢測裝置之結構簡單、成本低, 用遍制1:早、快速’可提向檢測效率,適於偏振元件應 、衣w相關領域。 能以述者,#為本發明之最佳實施例而已,當不 利範圍二發明所實施之範圍。即大凡依本發明申請專 之岣等變化與修飾,皆應仍屬於本發明專利涵 200821558 蓋之範圍内,謹請貴審查委員明鑑,並祈惠准,是所至 禱。 【圖式簡單說明】 圖一係美國發明專利第5247176號「Infrared laser polarimeter」之結構示意圖。 圖二係本發明之架構示意圖。 圖三係本發明較佳具體實施結構之示意圖◦ 圈四係本裝置之操作步驟流程圖。 【主要元件符號說明】 10-檢測裝置 2 0 -光源 21-透鏡 2 2 -線性偏光器 Ο 3 0 -檢偏振片 40- 光偵測模組 41- 光偵測器 42- 控制單元 ’ 43-顯示裝置 , 50-待檢測偏振元件 60- 機台 61- 主體 200821558 62-懸臂 621-端部 63承載台 631-透空部 64- 指示刻度 65- 指示燈When the C Ο is at a rotation angle of the polarizing plate 30, the maximum light intensity is not taken up by the device 42; thus, the detection is fast, and the sub-display is in the polarization direction of the display. 'A, dual-measurement polarizing element 5〇: method, ί package to light, its inspection: on the order of a polarizer and - light paving test group, the light technology path can be rotated and has a certain The degree of the cylinder is two, and, the polarizing film is received to pass through the μ, the light detecting module is used to obtain the light; the diaphragm is twisted; the to-be-detected _^ is to be detected The film 1' causes the light source to project the light to sequentially pass through the rotation sr, and then reaches the optical price measurement module, and the module detects the change of the light transmission intensity of the edge tooth by the light detecting component. The angle h is the maximum angle of wearing #intensity is the angle of the polarization operator to be measured] 3; the detection device has a simple structure and low cost, and the use of the ubiquitous 1: early, fast 'can improve the detection efficiency, suitable In the field of polarizing elements, clothing w related. It can be stated that # is the preferred embodiment of the invention, and is not intended to be within the scope of the invention. That is to say, the changes and modifications of the application of the invention in accordance with the invention should still fall within the scope of the patent of the invention, which is covered by the 200821558. I would like to ask your review committee to give a clear explanation and pray for it. It is the prayer. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic view showing the structure of "Infrared laser polarimeter" of U.S. Patent No. 5,247,176. Figure 2 is a schematic diagram of the architecture of the present invention. Figure 3 is a flow chart showing the operation steps of the apparatus of the preferred embodiment of the present invention. [Main component symbol description] 10-Detecting device 2 0 - Light source 21 - Lens 2 2 - Linear polarizer Ο 3 0 - Polarizing plate 40 - Light detecting module 41 - Photodetector 42 - Control unit '43- Display device, 50 - Polarization element to be detected 60 - Machine 61 - Main body 200821558 62 - Cantilever 621 - End 63 Carrier 631 - Air permeable portion 64 - Indicator scale 65 - Indicator light

Lo-光源發出之光線 Li-第一穿透光 L2-第二穿透光Light emitted by the Lo-light source Li-first transmitted light L2-second transmitted light

Claims (1)

200821558 十、申請專利範圍: 淨偏振光轴檢測裝置,係用以檢測偏振元件, 裝置包含: 邊杈測 一2源,係可投射出光線; =檢偏振片,係可旋轉地設置於該光源之光投射路徑上 並可供光線通過,其具有/定角度之偏光軸向; 一光偵測模組,係用以接受通過該檢偏振片之光線; ζ) 將待私測偏振元件設置於該光源與該檢偏振片之間,使 光源投射出光線依序通過該待檢測偏振元件、該檢偏振 片後,到達該光偵測模組,藉由該光偵測模組偵 χ 線強度。 、、』成九 •如申凊專利範圍第1項戶斤述之偏振光軸檢測裝置,其中 4檢偏振片係由馬達、傳動皮帶等驅動裝置驅動旋轉。 •如申凊專利範圍第1項戶斤述之偏振光軸檢測裝置,其中 該檢偏振片之旋轉軸向係與該光投射路徑相互平行。/、 C- 4·如申請專利範圍第1項所述之偏振光軸檢測裝置,其 忒檢偏振片係可作360度食圓周連續旋轉。 如申請專利範圍第1項所述之偏振光軸檢測裴置,其 該光源與該檢偏振片之間設有一承載台,係用 : 檢剛偏振元件。 承载待 L如申請專利範圍第5項所述之偏振光軸檢測裝置,其 该承載台上設有圓周角度指爪刻度,用以指示 二中 偏振元件之置放角度。 寺知測 •如申請專利範圍第丨項所述之偏振光軸檢测 又罝’其中 17 200821558 該光源可為自然光或線偏振光(Linearly Polarized Light)其中之一或其組合。 8. 如申請專利範圍第1項所述之偏振光軸檢測裝置,其中 該光偵測模組包含: 一光偵測器,係用以偵測通過該檢偏振片之光穿透率並 產生信號; 一控制單元,係用以接收該光測器所偵測之光穿透率信 號,並可對該信號進行分析處理。 9. 如申請專利範圍第8項所述之偏振光軸檢測裝置,其中 該控制單元更包含一顯示裝置,該顯示裝置係用以顯示 該控制單元所分析處理之信號内容。 10. 如申請專利範圍第8項所述之偏振光軸檢測裝置,其 中該控制單元係與該檢偏振片電性連接,用以控制該檢 偏振片。 11. 如申請專利範圍第1項所述之偏振光軸檢測裝置,其 中該光源更包括: 一透鏡,係設置於該光源之光投射路徑上並可直接供光 線通過; 一線性偏光器,係用以接收通過該透鏡之光線,用以調 整該光線朝向一定方向偏振。 12. 如申請專利範圍第11項所述之偏振光軸檢測裝置, 其中該線性偏光器所調整之光線射出方向係平行於該檢 偏振片之旋轉轴心方向。 13. —種偏振光轴檢測方法,其包含: (a)將一光源所投射之光線通過一待檢測偏振元件,形成 18 200821558 - 第一穿透光; ‘ (b)將該第一穿透光投射至一吁旋轉之檢偏振片,形、〜 二穿透光; v成第 (C)將該第二穿透光投射至一光偵測模組,由該光偉、、| # 組偵測該第二穿透光強度。 、娜輪 14· 如申清專利範圍第13項所述之偏振光轴檢測方、去, 其中該步驟(a)中,該光源所投射之光線係先依序經過一 透鏡、一線性偏光器後,再通過該待檢測偏振元件。 15· 如申清專利乾圍第13項所述之偏振光轴檢測方法, 其中该步驟(a)中,該光源 < 為自然光或線偏振光 (Linearly Polarized Light)其中之一或其組合。 16·如申請專利範圍第13項所述之偏振光軸檢測方法, 其中該步驟(a)中,該待檢測偏振元件係設置於一承載台 上。 ° 17·如申請專利範圍第16項所述之偏振光軸檢測方法, 其中該承載台上設有圓周角度指示刻度,用以指示該待 檢測偏振元件之置放角度。 18·如申清專利fe圍第13項所述之偏振光軸檢測方法, 其中e亥步驟(b)中,該檢偏振片係可作3 6 0度全圓周連續 旋轉。 、 19.如申請專利範圍第13項所述之偏振光軸檢測方法, . 其中該步驟(b)中,該第一穿透光之行進方向係與該檢偏 振片之旋轉軸向平行。 20·如申請專利範圍第13項所述之偏振光軸檢測方法, 19 200821558 其中該步驟(b)中,該檢偏振片係由馬達、傳動皮帶等驅 動裝置驅動旋轉。 21 ·如申请專利範圍第13項所述之偏振光軸檢測方法, 其中該步驟(c)中,該光偵測模組包含: =光偵測器,係用以偵測該第二穿透光之強度並產生信 號; 〇 Q 。乙制單元,係用以接收該光測器所偵測之光強度信 號,並可對該信號進行分析處理。 22甘如申請專利範圍第21項所述之偏振光轴檢測方法, ς中該步驟⑹後更包括—步驟⑷,由該控制單元紀錄 ::”振片之旋轉角度’以及各旋轉角度之光強度,並 韧取取大光強度時之該檢偏振片之旋轉角度。 23並”請專利範圍第21項所述之偏振J由檢測方法, 顧一::控制,兀更包含一顯示裝置’該顯示裝置係用以 絲貝不该控制單元所分析處理之信號内容。 24以如I"1 #利侧第21項所叙偏振光軸檢測方法, 檢偏^片工制早^係與該檢偏振片電性連接,用以控制該 25. 測展振光轴檢測裝置’係用以檢測偏振元件,該檢 機1台’其具有一主體; -:置於该主體上方’該光源可投射出光線; ‘偏振片,賴置於該機台之主體内 設=光源之光投射路徑上並可供光線通 一疋角度之偏光軸向; 、 20 200821558 • 一光偵測模組,係設置於該機台之主體内,係用以接受 , 通過該檢偏振片之光線。 26·如申請專利範圍第25項所述之偏振光軸檢測裝置, 其中該檢偏振片係由馬達、傳動皮帶等驅動裝置驅動旋 轉,該驅動裝置係設置於該機台之主體内。 27·如申請專利範圍第25項所述之偏振光軸檢测裝置, 其中該檢偏振片之旋轉轴向係與該光投射路徑相互平 行。 28·如申請專利範圍第25項所述之偏振光軸檢測裝置, 其中該檢偏振片係可作360度食圓周連續旋轉。 29·如申請專利範圍第25項所述之偏振光輛檢测裝置, 其中該機台之主體頂部設有/承載台,係用以承载待檢 測偏振元件,該承載台聚有/穿透部可供光線通過到達 吕亥機台之主體内。 30·如申請專利範圍第29項所述之偏振光軸檢測裴置, 〇 其中該承载台外圍之該主體頂郄上設有圓周角度指示刻 度,用以指示該待檢測偏振元件之置放角度。 31·如申請專利範圍第25項所述之偏振光軸檢測裝置, 其中該光源可為自然光戒線偏振光(Linear Polarized Light)其中之一戒其組合。 32·如申請專利範圍第25項所述之偏振光軸檢測裝置, ' 其中該光偵測模組包含: 一光偵測器,係用以偵測通過该檢偏振片之光穿透 產生信號; $ 200821558 一控制單元,係用以接收該光測器所偵測之光穿透率信 號,並可對該信號進行分析處理。 33. 如申請專利範圍第25項所述之偏振光軸檢測裝置, 其中該控制單元更包含一顯示裝置,該顯示裝置係用以 顯示該控制單元所分析處理之信號内容。 34. 如申請專利範圍第25項所述之偏振光軸檢測裝置, 其中該控制單元係與該檢偏振片電性連接,用以控制該 檢偏振片。 35. 如申請專利範圍第25項所述之偏振光軸檢測裝置, 其中該光源更包括: 一透鏡,係設置於該光源之光投射路徑上並可直接供光 線通過; 一線性偏光器,係用以接收通過該透鏡之光線,用以調 整該光線朝向一定方向偏振。 36. 如申請專利範圍第35項所述之偏振光軸檢測裝置, 其中光線射出方向係平行於該檢偏振片之旋轉軸心方 向。 37. 如申請專利範圍第35項所述之偏振光轴檢測裝置, 其中該光源、透鏡及線性偏光器係設置於一懸臂内,該 光源所發出之光線係可投向該檢偏振片。 22200821558 X. Patent application scope: The net polarization optical axis detecting device is used for detecting the polarizing element. The device comprises: a side source measuring a 2 source, which can project light; a polarizing plate, which is rotatably disposed on the light source a light projection path for allowing light to pass through, having a polarizing axis at a fixed angle; a light detecting module for receiving light passing through the polarizing plate; ζ) setting the polarization component to be privately measured Between the light source and the polarizing plate, the light source projects the light to sequentially pass through the to-be-detected polarizing element and the polarizing plate, and then reaches the light detecting module, and the light detecting module detects the line strength . 、成成九 • As for the polarization axis detection device of the first item of the application scope of the application, the 4 detection polarizer is driven to rotate by a driving device such as a motor or a transmission belt. The polarizing axis detecting device according to the first aspect of the invention, wherein the rotating axis of the detecting polarizer is parallel to the light projecting path. /, C-4. The polarization axis detecting device according to claim 1, wherein the polarizing film is continuously rotated 360 degrees. The polarizing axis detecting device of claim 1, wherein a mounting platform is disposed between the light source and the detecting polarizer for detecting a rigid polarizing element. The polarizing axis detecting device according to claim 5, wherein the mounting table is provided with a circumferential angle finger scale for indicating the placement angle of the two middle polarizing elements. Temple Sensing • Polarization axis detection as described in the scope of patent application 罝 其中' where 17 200821558 The light source may be one or a combination of natural light or linearly polarized light. 8. The polarization axis detecting device of claim 1, wherein the light detecting module comprises: a light detecting device for detecting light transmittance and generating light passing through the polarizing plate a control unit is configured to receive a light transmittance signal detected by the photodetector and analyze the signal. 9. The polarization axis detecting device of claim 8, wherein the control unit further comprises a display device for displaying signal content processed by the control unit. 10. The polarization axis detecting device of claim 8, wherein the control unit is electrically connected to the polarizing plate for controlling the polarizing plate. 11. The polarization axis detecting device of claim 1, wherein the light source further comprises: a lens disposed on the light projection path of the light source and directly allowing light to pass through; a linear polarizer The light for receiving the lens is used to adjust the light to be polarized in a certain direction. 12. The polarization axis detecting device according to claim 11, wherein the linear light emitter adjusts a light emission direction parallel to a rotation axis direction of the polarization detecting plate. 13. A method of detecting a polarization axis, comprising: (a) passing a light projected by a light source through a polarization element to be detected to form 18 200821558 - first transmitted light; '(b) the first penetration The light is projected onto a rotating polarizing plate, and the shape of the second light is transmitted through the light. The second light is projected into the light detecting module by the light (C). The second transmitted light intensity is detected.娜轮14· The detection of the polarization axis as described in claim 13 of the patent scope, wherein, in the step (a), the light projected by the light source is sequentially passed through a lens and a linear polarizer. After that, the polarizing element to be detected is passed. The method for detecting a polarization axis according to claim 13 of the present invention, wherein in the step (a), the light source < is one of natural light or linearly polarized light or a combination thereof. The polarization axis detecting method according to claim 13, wherein in the step (a), the to-be-detected polarizing element is disposed on a carrying platform. The method of detecting a polarization axis according to claim 16, wherein the stage is provided with a circumferential angle indicating scale for indicating the placement angle of the polarization element to be detected. 18. The method for detecting a polarization axis as described in claim 13 of the patent application, wherein in the step (b), the polarizer can be continuously rotated 360 degrees. 19. The polarization axis detecting method according to claim 13, wherein in the step (b), the traveling direction of the first transmitted light is parallel to the rotational axis of the detecting polarizer. 20. The method of detecting a polarization axis according to claim 13, 19 200821558, wherein in the step (b), the polarizer is driven to rotate by a driving device such as a motor or a drive belt. The polarizing axis detecting method of claim 13, wherein in the step (c), the light detecting module comprises: a photodetector for detecting the second penetrating The intensity of light produces a signal; 〇Q. The unit B is configured to receive the light intensity signal detected by the photodetector and analyze the signal. 22 is as claimed in claim 21, wherein the step (6) further comprises a step (4), and the control unit records: "the rotation angle of the diaphragm" and the light of each rotation angle. Intensity, and toughness to take the angle of rotation of the polarizing plate when the intensity of the light is taken. 23 and "the polarization J described in the 21st patent range is detected by the method, Gu 1:: control, the device further includes a display device' The display device is used for the signal content that is not processed by the control unit. 24, as measured by the polarization axis of the 21st item of the I"1#利 side, the detection of the biasing system is electrically connected to the polarizing plate to control the 25. The device 'is used to detect the polarizing element, the inspection machine 1' has a main body; -: placed above the main body 'the light source can project light; 'the polarizing plate, placed in the main body of the machine = a light-projecting path of the light source and allowing the light to pass through a polarizing axis at an angle; 20, 2008, 558. A light detecting module is disposed in the body of the machine for receiving and passing the polarizing plate Light. The polarization axis detecting device according to claim 25, wherein the polarizing plate is driven to rotate by a driving device such as a motor or a driving belt, and the driving device is disposed in the main body of the machine. The polarized light axis detecting device according to claim 25, wherein the rotational axis of the polarizing plate is parallel to the light projecting path. The polarizing axis detecting device according to claim 25, wherein the polarizing plate is continuously rotatable in a 360-degree circumference. The polarized light detecting device according to claim 25, wherein the top of the main body of the machine is provided with a carrying platform for carrying a polarizing element to be detected, and the carrying station gathers/penetrates Light can be passed through to the main body of the Luhai machine. 30. The polarization axis detecting device of claim 29, wherein a circumferential angle indicating scale is provided on the top of the main body of the loading platform to indicate the placement angle of the polarization component to be detected. . The polarization axis detecting device of claim 25, wherein the light source is one of or a combination of Linear Polarized Light. 32. The polarization axis detecting device according to claim 25, wherein the light detecting module comprises: a light detecting device for detecting light passing through the detecting polarizing plate to generate a signal $200821558 A control unit for receiving the light transmittance signal detected by the photodetector and analyzing the signal. 33. The polarization axis detecting device of claim 25, wherein the control unit further comprises a display device for displaying signal content processed by the control unit. 34. The polarization axis detecting device of claim 25, wherein the control unit is electrically connected to the polarizing plate for controlling the polarizing plate. The polarizing axis detecting device of claim 25, wherein the light source further comprises: a lens disposed on a light projection path of the light source and directly allowing light to pass through; a linear polarizer The light for receiving the lens is used to adjust the light to be polarized in a certain direction. The polarization axis detecting device according to claim 35, wherein the light emission direction is parallel to the rotation axis direction of the polarization detecting plate. 37. The polarization axis detecting device of claim 35, wherein the light source, the lens and the linear polarizer are disposed in a cantilever, and the light emitted by the light source can be directed to the polarizing plate. twenty two
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI416178B (en) * 2008-12-31 2013-11-21 Benq Materials Corp Inspection device and operation method thereof
CN111323945A (en) * 2020-03-19 2020-06-23 Tcl华星光电技术有限公司 Polaroid laminating equipment and laminating method thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI416178B (en) * 2008-12-31 2013-11-21 Benq Materials Corp Inspection device and operation method thereof
CN111323945A (en) * 2020-03-19 2020-06-23 Tcl华星光电技术有限公司 Polaroid laminating equipment and laminating method thereof

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