1316601 九、發明說明： 【發明所屬之技術領域】 本發明係有關一種光功率量測裝置，特別是關於一種 利用光學鏡片的反射與透射特性以及顯微攝影技術之^檢 查光纖接頭端面狀態之光功率量測裝置。 【先前技術】 傳統的光功率計只能單純地檢測一光纖接頭的光功 1率，然而光纖接頭的清潔與否常常影響到光纖訊號的傳 輸。一個髒掉的接頭會造成光功率量測上的誤差’由數dB 至數十dB皆有可能。通常在測量光功率之前必須先使用 一光接頭顯微鏡來檢視光纖接頭端面以確認光纖接頭之>繁 淨度。這時會將光纖接頭做插拔的動作，如果端面是乾淨 的’則再插入一光功率計；如果端面是航癖的，則要先用 擦拭帶清潔，再插入一光功率計。如此一來，為了量測光 功率就必需經過數次光接頭插拔的動作，對使用者來說極 為不便。1316601 IX. Description of the Invention: [Technical Field] The present invention relates to an optical power measuring device, and more particularly to a light that utilizes reflection and transmission characteristics of an optical lens and a photomicrography technique to inspect an end face state of a fiber optic connector Power measuring device. [Prior Art] A conventional optical power meter can simply detect the optical power rate of a fiber connector. However, the cleaning of the fiber connector often affects the transmission of the fiber signal. A dirty connector can cause errors in optical power measurements, which can range from a few dB to tens of dB. Usually, an optical connector microscope must be used to examine the fiber connector end face to verify the fiber connector's versatility before measuring the optical power. At this time, the fiber connector is plugged and unplugged. If the end face is clean, then an optical power meter is inserted. If the end face is a raft, it must be cleaned with a wiping tape and then inserted into an optical power meter. In this way, in order to measure the optical power, it is necessary to perform a plurality of optical connector insertion and removal operations, which is extremely inconvenient for the user.
基於上述之不便利性’其亟需一種結合光接頭 功能的光功率計，當光纖接頭插入到本發明裝置後 先檢視光纖接頭端面是否乾淨或有損壞。如果一切 使用者就能夠輕易地測量出準破的光功率，如此一 的設備’將對光通訊技術的進步形成很大的助力。 6 16601 【發明内容】 有鑑於上述發明背景t，如何減少進行光纖接頭清潔檢查的 步驟，是很需要突破的地方，本發明的主要目的在於提出一種具 =顯微鏡鍋蝴計’㈣學編彻透射特性，、 ^ 光辨峨，敎用者更方 便。 根據上述目的，太 外, ^明提出一種可檢查光纖接頭端面 狀態之光功率量測裝詈 置，其包含顯微攝影模組，用以接收 光纖之端面影像可貝 . 九“號，並將其轉換為一數位影像信 或’光功率檢知單开，m ,. ^ . A 用以接收光纖傳輸之光功率信號， 並將其轉換為特定雷工 β ,,. 千仏號；顯示單元，用以顯示影像； 以及中央處理單元， 號分別轉換為第1 ^控制數位影像信號及特定電子信 .,^ *’’、號和第二顯示信號，並決定將第 一或第二顯示信號傳 寻輸至顯示單元以使得使用者可以透過 該顯不早元監看該 ^ /± 纖之端面潔淨狀態或該光功率信號之 數值。 本發明之可檢态土 〜光纖接頭端面狀態之光功率量測裝置 亦可以包含照明根 你 '、、、’用以發出可見光以輔助光纖端面之 用以將端面影像可見光信號導入顯 且此光學元件之光學反射率隨可見光之強度 成像；以及光學元件， 微攝影模組， 不同而改變。 1316601 • ·. . 本發明之可檢查光纖接頭端面狀態之光功率量測裝置 亦可以包含一人機介面單元，用以輸入使用者指令以將顯 示單元監看之目標切換為端面影像或是光功率信號。 【實施方式】 接下來是本發明的詳細說明。第一 A圖是根據本發明 一較佳實施例之可檢查光纖接頭端面狀態之光功率量測裝 置100之功能方塊圖，其包含中央處理單元102、光纖接 _ 頭攝影單元104、光功率檢知單元106、顯示單元108以及 人機介面單元110。本發明主要是以中央處理單元102為 核心控制單元，其分別連接並控制光纖接頭攝影單元104、 光功率檢知單元106、顯示單元108以及人機介面單元110。 中央處理單元102可以是一泛用型微處理器 (microprocessor)，其執行儲存於記憶體（未顯示於圖中） 中之程式，接收來自人機介面單元110之使用者指令以對 光纖接頭攝影單元104、光功率檢知單元106和顯示單元 108進行必要之控制。此等控制包括，但不限於，對上述 各單元進行初使化、對光纖接頭攝影單元104進行縮放 (zooming)或平移（pan)控制、改變光功率檢知單元106之 諸如對光功率之敏感度設定、調整顯示單元108之色彩及/ 或亮度等視覺特性。前述之記憶體可以内建於中央處理單 元102，亦可以是一獨立之外部記憶體，例如，動態隨機 8 1316601 .· Γ 存取記憶體（Dynamic Random Access Memory 或 DRAM)或各 種形式之唯讀記憶體（Read Only Memory或ROM)。 光纖接頭攝影單元104可讓使用者檢視光纖接頭端面 有無異常狀況並做攝影以供記錄。參見第一 B圖，其顯示 依據本發明一實施例之光纖接頭攝影單元104之進一步功 能方塊圖。如第一 B圖所示，光纖接頭攝影單元1〇4包含 一照明模組104A、一光學元件ι〇4β和一顯微攝影模組 • 104C。顯微攝影模組104C可以具有顯微（意即影像放大） 之功能，以將光纖接頭端面潔淨狀態之信號清楚地呈現於 顯示單元108。上述之顯微攝影模組104C係用以接收光纖 之端面影像可見光信號，並將其轉換為一數位影像信號。 此數位影像信號經由中央處理單元1〇2適當處理和轉換成 第一顯示信號後輸出至顯示單元1〇8以供使用者監看。 依據本發明之另一實施例，顯微攝影模組104C亦連接至顯 •示單元ι〇8，其可以直接將上述數位影像信號轉換為上述 之第一顯示信號，而中央處理單元102則用以控制第一顯 不k號是否輸出至顯示單元108。顯微攝影模組1〇4C可以 i 3彩色或黑白之影像感測器（image sens〇r)、職司顯微 功迠之光學鏡片模組和其他控制電路。影像感測器可以是 书荷耦合元件（charge coupled device或CCD)型感測器、 互補式金氧半導體（C〇mpiementary Metai_ 〇xide_ 9 1316601 .·· . Semiconductor或CMOS)型感測器或是其他具有影像感測功能 之元件。至於照明模組104A和光學元件104B之功能和特 色，詳見第二圖之說明。 回到第一 A圖。光功率檢知單元106之功能在於量測 透過光纖傳輸之光功率，其可以接收來自光纖接頭端之光 功率，並將其轉換為一特定電子信號。中央處理單元102 則可以將此特定電子信號之大小，經適當處理或轉換成一 φ 第二顯示信號後輸出至顯示單元108以供使用者監看。依 據本發明之另一實施例，光功率檢知單元106亦包含將特 定電子信號轉換為第二顯示信號之電路並連接至顯示單元 108，，而中央處理單元102則用以控制第二顯示信號是否 輸出至顯示單元108。光功率檢知單元106可以包含諸如 光二極體（photo diode)之光功率量測元件以及其他控制 電路。 φ 顯示單元108係用以顯示光纖接頭端面之影像，其可 以是液晶顯示幕（liquid crystal display或LCD)或是任 何具有影像顯示功能之裝置。顯示單元108可以是彩色或 黑白之型式，尺寸上亦無特殊限制。顯示單元108亦可以 包含諸如發光二極體（light emitting diode或LED)等顯 示元件，以指示光功率計10 0之系統狀態。 10 1316601 .- • ·. . 人機介面單元110提供使用者操作光功率計100之介Based on the above-mentioned inconvenience, there is a need for an optical power meter incorporating an optical connector function. When the optical fiber connector is inserted into the device of the present invention, it is checked whether the end face of the optical fiber connector is clean or damaged. If all users can easily measure the quasi-broken optical power, such a device will greatly contribute to the advancement of optical communication technology. 6 16601 SUMMARY OF THE INVENTION In view of the above background of the invention t, how to reduce the steps of performing the fiber joint cleaning inspection is a place that needs to be broken, and the main object of the present invention is to propose a method for the transmission of the microscope. Features, , ^ Optical recognition, more convenient for users. According to the above purpose, Taiwai, a light power measuring device capable of inspecting the end face state of the optical fiber connector is proposed, which comprises a photomicrography module for receiving the end face image of the optical fiber. It is converted into a digital image signal or 'optical power detection single open, m, . ^ . A is used to receive the optical power signal transmitted by the optical fiber, and convert it into a specific laser β, ,. Millennium; display unit For displaying an image; and a central processing unit, the numbers are respectively converted into a 1st control digital image signal and a specific electronic signal, a ^*'', a second display signal, and the first or second display signal is determined. The search is sent to the display unit so that the user can monitor the end face clean state of the ^ / ± fiber or the value of the optical power signal through the display. The detectable state of the invention ~ the end of the optical fiber connector state The power measuring device may also include an illumination root for transmitting 'visible light to assist the end face of the optical fiber to introduce the visible light signal of the end face image and the optical reflectivity of the optical component along with the intensity of the visible light. The optical power measuring device of the present invention, which can check the end face state of the optical fiber connector, can also include a human-machine interface unit for inputting user commands. Switching the display unit to the end image or the optical power signal. [Embodiment] The following is a detailed description of the present invention. The first A is an inspection of the end face state of the optical fiber connector according to a preferred embodiment of the present invention. The functional block diagram of the optical power measuring device 100 includes a central processing unit 102, a fiber optic interface detecting unit 104, an optical power detecting unit 106, a display unit 108, and a human interface unit 110. The present invention is mainly centered. The processing unit 102 is a core control unit that respectively connects and controls the fiber optic connector photographing unit 104, the optical power detecting unit 106, the display unit 108, and the human interface unit 110. The central processing unit 102 can be a general-purpose microprocessor ( Microprocessor) executing a program stored in a memory (not shown) received from the human interface unit 110 The user commands to perform necessary control on the fiber optic connector photographing unit 104, the optical power detecting unit 106, and the display unit 108. Such controls include, but are not limited to, initializing each of the above units, and optical fiber joint photographing unit The 104 performs zooming or pan control, changes the optical power detecting unit 106 such as sensitivity setting to optical power, adjusts the color and/or brightness of the display unit 108, etc. The aforementioned memory can be internal. Built in the central processing unit 102, it can also be a separate external memory, for example, dynamic random 8 1316601 .· D access random memory (Dynamic Random Access Memory or DRAM) or various forms of read-only memory (Read Only Memory) Or ROM). The fiber optic connector photographic unit 104 allows the user to view the end face of the fiber optic connector for abnormal conditions and to take a picture for recording. Referring to Figure 1B, there is shown a further functional block diagram of fiber optic splice photography unit 104 in accordance with an embodiment of the present invention. As shown in FIG. B, the fiber optic connector photographing unit 1〇4 includes a lighting module 104A, an optical component ι4β, and a photomicrography module 104C. The photomicrography module 104C can have a microscopic (i.e., image magnification) function to clearly present the signal of the fiber connector end face clean state to the display unit 108. The photomicrography module 104C is configured to receive a visible light signal of an end face image of an optical fiber and convert it into a digital image signal. The digital image signal is appropriately processed and converted into a first display signal via the central processing unit 1〇2 and output to the display unit 1〇8 for monitoring by the user. According to another embodiment of the present invention, the photomicrography module 104C is also coupled to the display unit ι 8 , which can directly convert the digital image signal into the first display signal, and the central processing unit 102 To control whether the first display k is output to the display unit 108. The photomicrography module 1〇4C can be an i 3 color or black and white image sensor (image sens〇r), a functional microscopy optical lens module and other control circuits. The image sensor may be a charge coupled device (CCD) type sensor, a complementary metal oxide semiconductor (C〇mpiementary Metai_〇xide_ 9 1316601 . . . . . . . . . . or CMOS) type sensor or Other components with image sensing capabilities. As for the functions and features of the illumination module 104A and the optical component 104B, see the description of the second figure. Go back to the first A picture. The function of the optical power detection unit 106 is to measure the optical power transmitted through the optical fiber, which can receive the optical power from the fiber optic connector end and convert it into a specific electronic signal. The central processing unit 102 can then appropriately process or convert the size of the specific electronic signal into a φ second display signal and output it to the display unit 108 for monitoring by the user. According to another embodiment of the present invention, the optical power detecting unit 106 also includes a circuit for converting a specific electronic signal into a second display signal and is connected to the display unit 108, and the central processing unit 102 is configured to control the second display signal. Whether to output to the display unit 108. The optical power detecting unit 106 may include optical power measuring elements such as photo diodes and other control circuits. The φ display unit 108 is used to display an image of the end face of the fiber optic connector, which may be a liquid crystal display (LCD) or any device having an image display function. The display unit 108 may be of a color or black and white type, and is not particularly limited in size. Display unit 108 may also include display elements such as light emitting diodes or LEDs to indicate the system state of optical power meter 100. 10 1316601 .- • . . . The human-machine interface unit 110 provides a user to operate the optical power meter 100
HI 面，其可以包含按鍵、鍵盤、及/或指標裝置（如軌跡球、 滑鼠）等周邊輸入裝置。如前所述，中央處理單元102接收 來自人機介面單元110之使用者指令以對光功率計100中 之其他單元進行必要之控制，例如，將顯示單元108之顯 示内容於光纖接頭端面影像和光功率數值間切換。 第二圖顯示根據本發明一較佳實施例之可檢查光纖接 φ 頭端面狀態之光功率量測裝置200之詳細架構示意圖，其 包含光功率計插孔214、光學鏡片204B、光二極體206、 照明模組204A、顯微攝影模組204C、微處理器202以及顯 示裝置208。和第一圖類似，微處理器202分別連接並控 制光二極體206、照明模組204A、顯微攝影模組204C以及 顯示裝置208。 光功率計插孔214用以承接待側之光纖接頭212，其 φ 具有固定光纖接頭端面的功能，亦做為光纖接頭212和光 功率計的連接器。 光學鏡片204B即上述之光學元件104B，其可以是一 採用特定鍍膜技術之玻璃鏡片，其在強光下具有增強之光 反射特性，而在黑暗中具有光透射特性。照明模組204A(即 上述之照明模組104A)，可以包含一發光二極體，其發出 可見光以輔助光纖接頭端面成像之清晰度。顯微攝影模組 11 1316601 a - ·· .... 彳 204C則如前所述係用以接收光纖之端面影像可見光信號， 並將其轉換為一數位影像信號。此數位影像信號經轉換為 顯示信號即可輸出至顯示裝置208以檢視光纖接頭端面是 否乾淨。由第二圖之配置可知，照明模組2〇4A點亮時，光 學鏡片204B將因此具有較強之反射率，而可以將光纖之端 面影像可見光信號更忠實地導入顯微攝影模組2〇4C。 顯不裝置208如前所述可以是一般的液晶顯示幕用來 • 呈現光纖接頭端面影像。光二極體206，用來量測光功率， 其功能相當於第一圖中之光功率檢知單元丨〇6。。 本發明的特性之一在於利用反射特性隨接收可見光強 度改變之光學鏡片204B，在光反射時檢視光纖接頭端面， 而在光透射時量測於光纖中傳輸之光功率。藉由控制照明 模組204A之發光二極體的點壳可輔助光纖接頭端面之檢 視。當發光二極體點亮時，光學鏡片204B產生鏡面反射效 • 果’而將光纖接頭端面影像更清晰地傳送到顯微攝影模组 204C’以檢視接頭端面，當發光—極體不亮時，光學鏡片 204B變成透鏡，而將光纖接頭端的光訊號傳送到光二極體 206，以量測光功率。如此一來使用者可以將量測光功率之 步驟簡化為僅包含一次插拔之動作，而非如先前技術必須 經過數次光接頭之插拔。 12 1316601 ^ 以上所述僅係本發明之較佳實施例，並非用以限定本 發明之範嚀；凡其它未脫離本發明所揭示之精神下所完成 之等效改變或修飾，均應包含在下述之申請專利範圍内。 【圖式簡單說明】 第一 A圖顯不根據本發明一較佳實施例之可檢查光纖接頭 端面狀態之光功率量測裝置之功能方塊圖。 第一 B圖顯不依據本發明一實施例之光纖接頭攝影單元之 籲功能方塊圖。 第二圖顯示根據本發明一較佳實施例之可檢查光纖 面狀態之光功率量測裝置之詳細架構示意圖。 【主要元件符號說明】 100可檢查光纖接頭端面狀態之光功率量測裝置 102中央處理單元 104光纖接頭攝影單元 ® 1G4A照明模組 104B光學元件 104C顯微攝影模組 106光功率檢知單元 108顯示單元 110人機介面單元 200具光顯微鏡功能的光功率計架構 13 1316601 202微處理器 204A照明模組 204B光學鏡片 204C顯微攝影模組 206光二極體 208顯示裝置 212光纖接頭 214光功率計插孔The HI surface can include peripheral input devices such as buttons, keyboards, and/or indicator devices (such as trackballs, mice). As described above, the central processing unit 102 receives user commands from the human interface unit 110 to perform necessary control on other units in the optical power meter 100, for example, to display the display content of the display unit 108 on the fiber connector end face image and light. Switch between power values. The second figure shows a detailed architectural diagram of an optical power measuring device 200 capable of inspecting the state of an end face of a fiber-optic φ head according to a preferred embodiment of the present invention, which includes an optical power meter jack 214, an optical lens 204B, and an optical diode 206. The lighting module 204A, the photomicrography module 204C, the microprocessor 202, and the display device 208. Similar to the first figure, the microprocessor 202 connects and controls the photodiode 206, the illumination module 204A, the photomicrography module 204C, and the display device 208, respectively. The optical power meter jack 214 is used to receive the fiber connector 212 on the receiving side, and the φ has the function of fixing the end face of the fiber connector, and also serves as the connector of the fiber connector 212 and the optical power meter. The optical lens 204B, i.e., the optical element 104B described above, may be a glass lens employing a specific coating technique that has enhanced light reflection characteristics under strong light and light transmission characteristics in the dark. The illumination module 204A (i.e., the illumination module 104A described above) may include a light emitting diode that emits visible light to assist in sharpening the image of the end face of the fiber optic connector. The photomicrography module 11 1316601 a - ·· .... 彳 204C is used to receive the visible light signal of the end face image of the optical fiber and convert it into a digital image signal. The digital image signal is converted to a display signal and output to the display device 208 to check whether the fiber connector end face is clean. It can be seen from the configuration of the second figure that when the illumination module 2〇4A is illuminated, the optical lens 204B will have a strong reflectivity, and the visible light signal of the end face image of the optical fiber can be more faithfully introduced into the photomicrography module 2〇. 4C. The display device 208 can be used as a general liquid crystal display screen as described above to present an image of the end face of the fiber optic connector. The photodiode 206 is used to measure the optical power, and its function is equivalent to the optical power detecting unit 丨〇6 in the first figure. . One of the characteristics of the present invention is to utilize the optical lens 204B whose reflection characteristic changes with the intensity of the received visible light, to examine the end face of the fiber optic joint when the light is reflected, and to measure the optical power transmitted in the optical fiber when the light is transmitted. The inspection of the end face of the fiber optic connector can be assisted by controlling the point shell of the light emitting diode of the illumination module 204A. When the light-emitting diode is lit, the optical lens 204B generates a specular reflection effect and the image of the fiber end face is more clearly transmitted to the photomicrography module 204C' to view the end face of the joint, when the light-emitting body is not bright. The optical lens 204B becomes a lens, and the optical signal of the fiber connector end is transmitted to the photodiode 206 to measure the optical power. In this way, the user can simplify the step of measuring the optical power to include only one insertion and removal, instead of having to insert and remove the optical connector several times as in the prior art. 12 1316601 ^ The above is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention; any other equivalent changes or modifications which are not departing from the spirit of the present invention should be included. Within the scope of the patent application. BRIEF DESCRIPTION OF THE DRAWINGS A first block diagram is a functional block diagram of an optical power measuring device capable of inspecting an end face state of a fiber optic connector in accordance with a preferred embodiment of the present invention. The first B diagram shows a functional block diagram of the fiber optic connector unit in accordance with an embodiment of the present invention. The second figure shows a detailed architectural diagram of an optical power measuring device capable of inspecting the state of an optical fiber surface in accordance with a preferred embodiment of the present invention. [Main component symbol description] 100 optical power measuring device 102 capable of checking the end face state of the optical fiber connector Central processing unit 104 optical fiber connector photography unit 1G4A lighting module 104B optical component 104C microphotography module 106 optical power detecting unit 108 display Unit 110 Human Machine Interface Unit 200 Optical Power Meter Architecture with Light Microscope Function 13 1316601 202 Microprocessor 204A Lighting Module 204B Optical Lens 204C Microphotography Module 206 Light Diode 208 Display Device 212 Fiber Connector 214 Optical Power Meter Insert hole