TW201624103A - Dynamic balance correction method for phosphor wheel, and phosphor wheel with dynamic balance correction - Google Patents
Dynamic balance correction method for phosphor wheel, and phosphor wheel with dynamic balance correction Download PDFInfo
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Abstract
Description
本發明主要關於一種螢光色輪，尤指一種螢光色輪之動平衡校正方法。 The invention mainly relates to a fluorescent color wheel, in particular to a dynamic balance correction method for a fluorescent color wheel.
目前之數位光學處理(DLP)式投影機，利用快速旋轉之色輪來產生依據時序改變顏色之光束，並藉由DLP晶片反射上述光束，來形成投影畫面。 The current digital optical processing (DLP) projector uses a fast-rotating color wheel to generate a light beam that changes color according to timing, and reflects the light beam by a DLP wafer to form a projected image.
一般而言，色輪於高速旋轉下會產生振動，並因此大幅降低了投影畫面的影像品質。因此，於習知技術中，於色輪上利用黏膠來黏置一或多個配重塊，來減少色輪於旋轉時產生的振動。 In general, the color wheel generates vibration under high-speed rotation, and thus the image quality of the projected picture is greatly reduced. Therefore, in the prior art, one or more weights are adhered to the color wheel by using a glue to reduce the vibration generated when the color wheel rotates.
然而，上述之配重塊可能會於投影機內部的高溫環境由於黏膠的融解或裂化下脫落，進而造成投影機之損壞。此外，由於利用了黏膠黏置配重塊，因此需等待黏膠凝固才能再針對色輪之動平衡進行測試，進而增加了色輪的製作時間。 However, the above-mentioned weight may cause damage to the projector due to the high temperature environment inside the projector falling off due to melting or cracking of the glue. In addition, since the adhesive is used to stick the weight, it is necessary to wait for the glue to solidify before testing the dynamic balance of the color wheel, thereby increasing the production time of the color wheel.
為了解決上述習知技術之缺失，本發明之目的為提供一種螢光色輪之動平衡校正方法，能減少投影機之損壞因素，且能加快螢光色輪的製作時間。 In order to solve the above-mentioned shortcomings of the prior art, the object of the present invention is to provide a method for correcting the dynamic balance of a fluorescent color wheel, which can reduce the damage factor of the projector and accelerate the production time of the fluorescent color wheel.
為了達到上述之目的，本發明提供了一種螢光色輪之動平衡校正方法，包括設置一螢光色輪於一夾持裝置；取得螢光色輪之一不平衡量以及一不平衡位置；藉由一處理模組依據不平衡量及不平衡位置取得一鑽孔參數；以及藉由一鑽孔裝置依據鑽孔參數於螢光色輪之一平衡環上形成一平衡孔，以減少螢光色輪之不平衡量。 In order to achieve the above object, the present invention provides a method for correcting the dynamic balance of a fluorescent color wheel, comprising: providing a fluorescent color wheel to a clamping device; obtaining an imbalance amount of the fluorescent color wheel and an unbalanced position; A drilling module obtains a drilling parameter according to the unbalanced amount and the unbalanced position; and a balance hole is formed on one of the balance rings of the fluorescent color wheel according to the drilling parameter by a drilling device to reduce the fluorescent color wheel The amount of imbalance.
綜上所述，本發明之螢光色輪之動平衡校正方法，可藉由形成平衡孔的方式，快速且精確地校正螢光色輪之動平衡，且能減少螢光色輪之製作時間。由於不需要配重塊因此能減少投影機之損壞因素。 In summary, the method for correcting the dynamic balance of the fluorescent color wheel of the present invention can quickly and accurately correct the dynamic balance of the fluorescent color wheel by forming a balance hole, and can reduce the production time of the fluorescent color wheel. . Since the weight is not required, the damage factor of the projector can be reduced.
1‧‧‧投影機 1‧‧‧Projector
10‧‧‧光源 10‧‧‧Light source
20‧‧‧螢光色輪 20‧‧‧Fluorescent color wheel
21‧‧‧馬達 21‧‧‧Motor
22‧‧‧轉軸 22‧‧‧ shaft
23‧‧‧色盤 23‧‧‧Color plate
24‧‧‧平衡環 24‧‧‧balance ring
30‧‧‧影像組件 30‧‧‧Image components
31‧‧‧中繼模組 31‧‧‧Relay module
32‧‧‧顯像裝置 32‧‧‧Developing device
33‧‧‧透鏡組 33‧‧‧ lens group
40‧‧‧螢幕 40‧‧‧ screen
A1‧‧‧動平衡修正設備 A1‧‧‧Dynamic balance correction equipment
A10‧‧‧處理模組 A10‧‧‧Processing Module
A20‧‧‧夾持裝置 A20‧‧‧Clamping device
A30‧‧‧動平衡檢測裝置 A30‧‧‧Dynamic balance detection device
A40‧‧‧位置偵測裝置 A40‧‧‧ position detection device
A50‧‧‧鑽孔裝置 A50‧‧‧Drilling device
A51‧‧‧鑽頭 A51‧‧‧ drill bit
B1‧‧‧平衡孔 B1‧‧‧ balance hole
C1‧‧‧中心 C1‧‧ Center
d1‧‧‧鑽孔距離 D1‧‧‧Drilling distance
E1‧‧‧方位角 E1‧‧‧ azimuth
L1‧‧‧光束 L1‧‧‧ Beam
L11‧‧‧顏色光束 L11‧‧‧ color beam
L12‧‧‧投影光束 L12‧‧‧projection beam
M1‧‧‧定位標誌 M1‧‧‧ positioning mark
T1‧‧‧厚度 T1‧‧‧ thickness
W1‧‧‧寬度 W1‧‧‧Width
Z1、Z1a、Z1b、Z1c、Z1d‧‧‧色彩區域 Z1, Z1a, Z1b, Z1c, Z1d‧‧‧ color areas
第1圖為本發明之投影機的示意圖。 Figure 1 is a schematic view of a projector of the present invention.
第2圖為本發明之螢光色輪的前視圖。 Figure 2 is a front elevational view of the fluorescent color wheel of the present invention.
第3圖為本發明之動平衡修正設備之系統圖。 Figure 3 is a system diagram of the dynamic balance correction device of the present invention.
第4圖為本發明之動平衡修正設備之示意圖。 Figure 4 is a schematic view of the dynamic balance correction device of the present invention.
第5圖為本發明之螢光色輪之動平衡校正方法的流程圖。 Fig. 5 is a flow chart showing the method for correcting the dynamic balance of the fluorescent color wheel of the present invention.
第1圖為本發明之投影機1的示意圖。第2圖為本發明之螢光色輪20的前視圖。投影機1包括一光源10、一螢光色輪20、一影像組件30、以及一螢幕40。光源10可為一固態發光 光源，例如雷射光源。光源10用以產生一光束L1，於本實施例中，光束L1可為藍光或紫外光，於本實施例中，可為藍光。 Figure 1 is a schematic view of a projector 1 of the present invention. Fig. 2 is a front view of the fluorescent color wheel 20 of the present invention. The projector 1 includes a light source 10, a fluorescent color wheel 20, an image component 30, and a screen 40. The light source 10 can be a solid state light A light source, such as a laser source. The light source 10 is used to generate a light beam L1. In this embodiment, the light beam L1 may be blue light or ultraviolet light. In this embodiment, it may be blue light.
光束L1由光源10產生後，依序經過螢光色輪20、以及影像組件30，最後經由影像組件30投射至螢幕40。螢光色輪20用以依據時間改變光束L1的顏色，以使光束L1形成一顏色光束(colored light beam)L11。 The light beam L1 is generated by the light source 10, sequentially passes through the fluorescent color wheel 20, and the image component 30, and finally projected to the screen 40 via the image component 30. The fluorescent color wheel 20 is used to change the color of the light beam L1 according to time so that the light beam L1 forms a colored light beam L11.
影像組件30可包括一中繼模組31、一顯像裝置32、以及一透鏡組33。中繼模組31可依實際光路徑之需求而設置有中繼透鏡(relay lens，圖未示)、均光器或反射鏡等。顯像裝置32可為數位微鏡裝置(Digital Micromirror Device,DMD)、液晶顯示裝置(Liquid Crystal Display,LCD)或液晶覆矽裝置(Liquid Crystal on Silicon,LCOS)等，用以依據一影像訊號將上述顏色光束L11形成一投影光束L12。透鏡組33用以放大投影光束L12，且螢幕40可為一牆壁或是一布幕。當上述投影光束L12投射於螢幕40時，可形成一投影畫面。 The image component 30 can include a relay module 31, a developing device 32, and a lens group 33. The relay module 31 can be provided with a relay lens (not shown), a homogenizer or a mirror according to the requirements of the actual optical path. The developing device 32 can be a Digital Micromirror Device (DMD), a Liquid Crystal Display (LCD), or a Liquid Crystal On Silicon (LCOS), etc., according to an image signal. The color light beam L11 described above forms a projection light beam L12. The lens group 33 is used to enlarge the projection light beam L12, and the screen 40 can be a wall or a curtain. When the projection light beam L12 is projected on the screen 40, a projection picture can be formed.
於本實施例中，螢光色輪20為一螢光螢光色輪。如第1、2圖所示，螢光色輪20包括一馬達21、一轉軸22、一色盤23、以及一平衡環24。馬達21用以驅動轉軸22及色盤23旋轉。轉軸22設置於馬達21，且固定於色盤23。於本實施例中，轉軸22可穿過螢光色輪20之中心C1，且垂直於色盤23。 In the embodiment, the fluorescent color wheel 20 is a fluorescent fluorescent color wheel. As shown in FIGS. 1 and 2, the fluorescent color wheel 20 includes a motor 21, a rotating shaft 22, a color wheel 23, and a balance ring 24. The motor 21 is used to drive the rotating shaft 22 and the color wheel 23 to rotate. The rotating shaft 22 is disposed on the motor 21 and is fixed to the color wheel 23. In the present embodiment, the rotating shaft 22 can pass through the center C1 of the fluorescent color wheel 20 and is perpendicular to the color wheel 23.
色盤23可為一平板狀結構。色盤23可具有多個色彩區域Z1。色彩區域Z1可塗佈不同顏色之螢光材料用以將光速L1激發為不同之顏色。於本實施例中，色彩區域Z1為4個，而 另一實施例中，色彩區域Z1可為1個、2個、3個或是5個以上。此外，色彩區域Z1的面積可為相同、或不同，並不予以限制。 The color wheel 23 can be a flat structure. The color wheel 23 can have a plurality of color regions Z1. The color area Z1 can be coated with phosphors of different colors to excite the speed of light L1 to a different color. In this embodiment, the color area Z1 is four, and In another embodiment, the color area Z1 may be 1, 2, 3, or 5 or more. Further, the area of the color area Z1 may be the same or different and is not limited.
色盤23的轉速可為每秒60轉至每秒360轉之間。由於色盤23經由馬達21帶動持續地旋轉，因此光束L1依續穿過不同之色彩區域Z1，進而激發螢光材料使得光束L1時間依據改變其顏色。舉例而言，色彩區域Z1包括一紅光色彩區域Z1a、一綠光色彩區域Z1b、一藍光色彩區域Z1c、以及一白光色彩區域Z1d。紅光色彩區域Z1a、綠光色彩區域Z1b、黃光色彩區域Z1c、以及藍光色彩區域Z1d以轉軸22為中心C1呈放射狀排列。 The rotational speed of the color wheel 23 can be between 60 revolutions per second and 360 revolutions per second. Since the color wheel 23 is continuously rotated by the motor 21, the light beam L1 continues to pass through the different color regions Z1, thereby exciting the fluorescent material so that the light beam L1 changes its color in time. For example, the color area Z1 includes a red color area Z1a, a green color area Z1b, a blue color area Z1c, and a white color area Z1d. The red color area Z1a, the green color area Z1b, the yellow color area Z1c, and the blue color area Z1d are radially arranged around the rotation axis 22 as C1.
紅光色彩區域Z1a塗佈了紅色螢光材料，可將光束L1激發為紅色的顏色光束L11。綠光色彩區域Z1b塗佈了綠色螢光材料，可將光束L1激發為綠色的顏色光束L11。黃光色彩區域Z1c塗佈了黃色螢光材料，可將光束L1激發為黃色的顏色光束L11。由於光束L1可為藍光，因此藍光色彩區域Z1d可不塗佈螢光材料，讓光束L1完整通過。 The red color region Z1a is coated with a red fluorescent material to excite the light beam L1 into a red color light beam L11. The green color region Z1b is coated with a green phosphor material to excite the light beam L1 into a green color light beam L11. The yellow color region Z1c is coated with a yellow phosphor material to excite the light beam L1 into a yellow color light beam L11. Since the light beam L1 can be blue light, the blue color region Z1d can be coated with the fluorescent material without passing the light beam L1 intact.
由於每一色彩區域Z1上所塗佈的螢光材料的厚度不同，因此會造成每一色彩區域Z1於重量上不一致的情況，尤其是藍光色彩區域Z1d，與其他塗佈有螢光材料之色彩區域Z1於重量上具有更大的差異。由於螢光色輪20需持續的轉動，來改變光束L1的顏色。因此，於每一色彩區域Z1於重量上不一致的情況下，螢光色輪20的動平衡十分重要。如果螢光色輪20轉動時產生晃動，會嚴重影響投影畫面的畫質。 Since the thickness of the fluorescent material applied on each color region Z1 is different, each color region Z1 may be inconsistent in weight, especially the blue color region Z1d, and other colors coated with the fluorescent material. Zone Z1 has a greater difference in weight. Since the fluorescent color wheel 20 needs to be continuously rotated, the color of the light beam L1 is changed. Therefore, in the case where each color region Z1 is inconsistent in weight, the dynamic balance of the fluorescent color wheel 20 is important. If the fluorescent color wheel 20 rotates, it will seriously affect the image quality of the projected picture.
平衡環24固定於螢光色輪20以及轉軸22，用以穩定轉動時之色盤23。平衡環24可為一圓形之板狀結構。平衡環 24之厚度T1約為螢光色輪20之厚度T1的1倍至15倍。舉例而言，平衡環24之厚度T1約為0.7mm至10mm。平衡環24之寬度W1約為螢光色輪20之直徑的0.25倍至0.7倍。舉例而言，平衡環24之寬度W1約為25mm至70mm。 The balance ring 24 is fixed to the fluorescent color wheel 20 and the rotating shaft 22 for stabilizing the color wheel 23 when rotating. The balance ring 24 can be a circular plate-like structure. Balance ring The thickness T1 of 24 is about 1 to 15 times the thickness T1 of the fluorescent color wheel 20. For example, the balance ring 24 has a thickness T1 of about 0.7 mm to 10 mm. The width W1 of the gimbal 24 is about 0.25 to 0.7 times the diameter of the fluorescent color wheel 20. For example, the balance ring 24 has a width W1 of about 25 mm to 70 mm.
平衡環24可由金屬材質所製成。於一些實施例中，平衡環24包括鐵、銅、不鏽鋼、或其合金。平衡環24之重量約為色盤23之重量的0.1倍至0.7倍。舉例而言，平衡環24之重量約為1.5g至10.5g。 The balance ring 24 can be made of a metal material. In some embodiments, the gimbal 24 comprises iron, copper, stainless steel, or alloys thereof. The weight of the balance ring 24 is about 0.1 to 0.7 times the weight of the color wheel 23. For example, the weight of the gimbal 24 is about 1.5 g to 10.5 g.
平衡環24可具有至少一平衡孔B1，用以調整色盤23之動平衡。平衡孔B1之位置、尺寸以及數量依據色盤23之一不平衡位置及一不平衡量。平衡孔B1可使螢光色輪20之殘餘的不平衡量小於一預定數值，該預定數值可為0.5mg至500mg之間。 The balance ring 24 can have at least one balance hole B1 for adjusting the dynamic balance of the color wheel 23. The position, size and number of the balance holes B1 are based on an unbalanced position of the color wheel 23 and an unbalanced amount. The balance hole B1 may cause the residual unbalance amount of the fluorescent color wheel 20 to be less than a predetermined value, which may be between 0.5 mg and 500 mg.
於光源10為雷射光源的情況下，由於光束L1的能量很高，當光束L1直接射向螢光色輪20時，會導致螢光色輪20的溫度過高。因此若利用習知技術，於螢光色輪20上利用黏膠來黏置配重塊的方式來調整螢光色輪20之動平衡，會因為螢光色輪20的溫度導致配重塊脫落。尤其是螢光色輪20每一色彩區域Z1具有重量上的差異，當配重塊脫落時會導致色盤23的旋轉極不穩定。 In the case where the light source 10 is a laser light source, since the energy of the light beam L1 is high, when the light beam L1 is directly directed to the fluorescent color wheel 20, the temperature of the fluorescent color wheel 20 is excessively high. Therefore, if the weight of the fluorescent color wheel 20 is adjusted by using the adhesive on the fluorescent color wheel 20 by using the conventional technique, the weight of the fluorescent color wheel 20 may be lowered due to the temperature of the fluorescent color wheel 20. . In particular, each color region Z1 of the fluorescent color wheel 20 has a difference in weight, which causes the rotation of the color wheel 23 to be extremely unstable when the weight is detached.
因此，於本實施例中，藉由於平衡環24上形成平衡孔B1，來調整螢光色輪20之動平衡，螢光色輪20不會發生因為高溫導致如習知技術中的配重塊脫落導致動平衡改變的情況，亦不會因為配重塊的脫落導致投影機1的損壞。 Therefore, in the present embodiment, the balance of the fluorescent color wheel 20 is adjusted by forming the balance hole B1 on the balance ring 24, and the fluorescent color wheel 20 does not occur due to high temperature, such as the weight in the prior art. The falling off causes the dynamic balance to change, and the projector 1 is not damaged due to the falling of the weight.
第3圖為本發明之動平衡修正設備A1之系統圖。第4圖為本發明之動平衡修正設備A1之示意圖。 Fig. 3 is a system diagram of the dynamic balance correction device A1 of the present invention. Figure 4 is a schematic view of the dynamic balance correction device A1 of the present invention.
動平衡修正設備A1包括一處理模組A10、一夾持裝置A20、動平衡檢測裝置A30、一位置偵測裝置A40、以及一鑽孔裝置A50。處理模組A10耦接於夾持裝置A20、動平衡檢測裝置A30、位置偵測裝置A40、以及鑽孔裝置A50，用以控制其運作。 The dynamic balance correction device A1 includes a processing module A10, a clamping device A20, a dynamic balance detecting device A30, a position detecting device A40, and a drilling device A50. The processing module A10 is coupled to the clamping device A20, the dynamic balance detecting device A30, the position detecting device A40, and the drilling device A50 for controlling its operation.
夾持裝置A20用以固定及旋轉螢光色輪20。動平衡檢測裝置A30用以檢測螢光色輪20之動平衡。於本實施例中，夾持裝置A20設置於動平衡檢測裝置A30上方。然而，動平衡檢測裝置A30可具有其他多種形式，不應予以限制。 The clamping device A20 is used to fix and rotate the fluorescent color wheel 20. The dynamic balance detecting device A30 is configured to detect the dynamic balance of the fluorescent color wheel 20. In the present embodiment, the clamping device A20 is disposed above the dynamic balance detecting device A30. However, the dynamic balance detecting device A30 may have other various forms and should not be limited.
位置偵測裝置A40用以偵測色盤23之轉速以及方位角。於本實施例中，色盤23之邊緣具有一定位標誌M1(如第2圖所示)。位置偵測裝置A40藉由偵測到定位標誌M1的時間間隔來計算色盤23之轉速以及色盤23之方位角。鑽孔裝置A50用以對平衡環24進行鑽孔。 The position detecting device A40 is configured to detect the rotation speed and the azimuth angle of the color wheel 23. In the present embodiment, the edge of the color wheel 23 has a positioning mark M1 (as shown in Fig. 2). The position detecting device A40 calculates the rotational speed of the color wheel 23 and the azimuth of the color wheel 23 by detecting the time interval of the positioning mark M1. The drilling device A50 is used to drill the balance ring 24.
於本實施例中，可以定位標誌M1當作為方位角為0度之基準。方位角E1可定義為定位標誌M1至色盤23之中心C1的連線以及平衡孔B1至中心C1的連線之間的夾角。 In the present embodiment, the marker M1 can be positioned as a reference for the azimuth angle of 0 degrees. The azimuth angle E1 may be defined as an angle between the alignment mark M1 to the center C1 of the color wheel 23 and the line connecting the balance hole B1 to the center C1.
第5圖為本發明之螢光色輪20之動平衡校正方法的流程圖。於步驟S101中，將螢光色輪20固定於一夾持裝置A20。於本實施例中，夾持裝置A20固定螢光色輪20之馬達21。當螢光色輪20固定於夾持裝置A20時，可藉由調整夾持裝置A20以將色盤23調整至一水平位置。 Fig. 5 is a flow chart showing the method for correcting the dynamic balance of the fluorescent color wheel 20 of the present invention. In step S101, the fluorescent color wheel 20 is fixed to a holding device A20. In the present embodiment, the holding device A20 fixes the motor 21 of the fluorescent color wheel 20. When the fluorescent color wheel 20 is fixed to the holding device A20, the color wheel 23 can be adjusted to a horizontal position by adjusting the holding device A20.
於步驟S103中，藉由一動平衡檢測裝置A30以及一位置偵測裝置A40，取得螢光色輪20之不平衡量以及不平衡位置。於此步驟中，處理模組A10啟動螢光色輪20之馬達21運作，以使色盤23旋轉。色盤23之轉速可為每秒60轉至每秒360轉。 In step S103, the unbalanced amount and the unbalanced position of the fluorescent color wheel 20 are obtained by a dynamic balance detecting device A30 and a position detecting device A40. In this step, the processing module A10 activates the motor 21 of the fluorescent color wheel 20 to rotate the color wheel 23. The rotational speed of the color wheel 23 can be 60 revolutions per second to 360 revolutions per second.
動平衡檢測裝置A30依據螢光色輪20所產生之振動，測量螢光色輪20之不平衡量。位置偵測裝置A40可藉由偵測旋轉中之色盤23上的定位標誌M1、測量到每一定位標誌M1的時間、以及色盤23之轉速，配合偵測到不平衡量的時間，以取得不平衡量於以定位標誌M1為基準之色盤23的方位角，也就是不平衡位置。 The dynamic balance detecting device A30 measures the unbalance amount of the fluorescent color wheel 20 based on the vibration generated by the fluorescent color wheel 20. The position detecting device A40 can detect the time of detecting the unbalance amount by detecting the positioning mark M1 on the rotating color wheel 23, measuring the time of each positioning mark M1, and the rotation speed of the color wheel 23. The unbalance amount is the azimuth angle of the color wheel 23 based on the positioning mark M1, that is, the unbalanced position.
於步驟S105中，處理模組A10依據不平衡量及不平衡位置計算出一或多個鑽孔參數。上述鑽孔參數包括鑽孔深度以及鑽孔位置。鑽孔位置可包括一鑽孔距離d1以及一方位角E1。上述鑽孔位置之鑽孔距離d1可為平衡孔B1與色盤23之中心C1的位置。舉例而言，不平衡位置為色盤23之方位角E1，鑽孔位置之方位角E1可為30度。 In step S105, the processing module A10 calculates one or more drilling parameters according to the unbalanced amount and the unbalanced position. The drilling parameters described above include the drilling depth and the drilling position. The drilling position may include a drilling distance d1 and an azimuth angle E1. The drilling distance d1 of the above drilling position may be the position of the balance hole B1 and the center C1 of the color wheel 23. For example, the unbalanced position is the azimuth angle E1 of the color wheel 23, and the azimuth angle E1 of the drilling position may be 30 degrees.
上述之鑽孔深度可由不平衡量乘上一比例參數取得，而比例參數可經由實驗，由實際之鑽頭A51的加工深度以及鑽孔後所補償之不平衡量來取得。 The drilling depth described above can be obtained by multiplying the unbalance amount by a proportional parameter, and the proportional parameter can be obtained experimentally from the machining depth of the actual drill A51 and the unbalanced amount compensated after drilling.
舉例而言，不平衡位置的方位角E1為30度且不平衡量為15mg。鑽頭A51之直徑為2mm，且鑽頭A51於色盤23上所形成之平衡孔B1的深度為0.2mm時，所補償之不平衡量為1.7mg。於此例子中，上述預定數值為2.78mg，色盤23於增加平衡孔B1後所殘餘之不平衡量應小於2.78mg之預定數值。 For example, the unbalanced position has an azimuth angle E1 of 30 degrees and an unbalanced amount of 15 mg. When the diameter of the drill A51 is 2 mm and the depth of the balance hole B1 formed by the drill A51 on the color disk 23 is 0.2 mm, the amount of unbalance compensated is 1.7 mg. In this example, the predetermined value is 2.78 mg, and the amount of unbalance remaining after the color wheel 23 is increased by the balance hole B1 should be less than a predetermined value of 2.78 mg.
因此當鑽孔深度為1.7mm時，平衡孔B1所補償之不平衡質量為14.45mg。因此色盤23於增加平衡孔B1後所殘餘之不平衡量可為0.55，其小於預定數值。 Therefore, when the drilling depth is 1.7 mm, the unbalanced mass compensated by the balance hole B1 is 14.45 mg. Therefore, the amount of unbalance remaining after the color wheel 23 is increased by the balance hole B1 may be 0.55, which is less than a predetermined value.
然而，由於平衡環24厚度T1上的限制，平衡孔B1之最大深度受到限制，因此每一平衡孔B1所能減少之不平衡量，具有一最大補償值。 However, due to the limitation on the thickness T1 of the balance ring 24, the maximum depth of the balance hole B1 is limited, so that the amount of imbalance that can be reduced by each balance hole B1 has a maximum compensation value.
舉例而言，不平衡量為48mg，而平衡孔B1之最大深度為2mm。當平衡孔B1之深度為2mm時，所補償之不平衡值為17mg，不足以使得色盤23之殘餘不平衡量小於預定數值。因此，處理模組A10會增加平衡孔B1之數量，藉由多個平衡孔B1，使得色盤23之殘餘不平衡質量小於2.78mg之預定數值。 For example, the unbalance amount is 48 mg, and the balance hole B1 has a maximum depth of 2 mm. When the depth of the balance hole B1 is 2 mm, the compensated imbalance value is 17 mg, which is insufficient for the residual unbalance amount of the color wheel 23 to be smaller than a predetermined value. Therefore, the processing module A10 increases the number of the balance holes B1, and the residual unbalance mass of the color wheel 23 is less than a predetermined value of 2.78 mg by the plurality of balance holes B1.
於此例子中，平衡孔B1之數量可為三個，且深度為1.9mm，三個平衡孔B1所補償之不平衡量約為48.45mg，因此色盤23之殘餘不平衡量可為0.55，其小於2.78mg之預定數值。 In this example, the number of the balance holes B1 may be three, and the depth is 1.9 mm, and the imbalance amount compensated by the three balance holes B1 is about 48.45 mg, so the residual unbalance amount of the color wheel 23 may be 0.55, which is smaller than 2.78 mg of the predetermined value.
此外，處理模組A10亦可調整平衡孔B1與中心C1之間的鑽孔距離d1，來調整平衡孔B1補償之不平衡量。 In addition, the processing module A10 can also adjust the drilling distance d1 between the balance hole B1 and the center C1 to adjust the imbalance amount compensated by the balance hole B1.
於步驟S107中，依據上述鑽孔參數於螢光色輪20之一平衡環24上形成至少一平衡孔B1。首先，處理模組A10可停止驅動馬達21，以使色盤23停止轉動。之後，處理模組A10控制夾持裝置A20之直接旋轉色盤23，並使色盤23之定位標誌M1為於一初始位置。於本實施例中，初始位置可對應於位置 偵測裝置A40之位置。之後，依據鑽孔位置之方位角來旋轉色盤23，以使色盤23旋轉至一預定位置。 In step S107, at least one balance hole B1 is formed on one of the balance rings 24 of the fluorescent color wheel 20 according to the drilling parameter. First, the processing module A10 can stop driving the motor 21 to stop the color wheel 23 from rotating. Thereafter, the processing module A10 controls the direct rotation color wheel 23 of the holding device A20, and causes the positioning mark M1 of the color wheel 23 to be at an initial position. In this embodiment, the initial position may correspond to the position The position of the device A40 is detected. Thereafter, the color wheel 23 is rotated in accordance with the azimuth of the drilling position to rotate the color wheel 23 to a predetermined position.
處理模組A10可控制鑽孔裝置A50之鑽頭A51朝向平衡環24移動，並依據鑽孔深度形成一平衡孔B1。若需形成另一平衡孔B1，可重複本步驟來進行。當形成平衡孔B1後，螢光色輪20可立即的再度利用動平衡檢測裝置A30進行檢測動平衡，進而減少了螢光色輪20或投影機1之製作時間。 The processing module A10 can control the drill A51 of the drilling device A50 to move toward the balance ring 24, and form a balance hole B1 according to the drilling depth. If another balance hole B1 needs to be formed, this step can be repeated. When the balance hole B1 is formed, the fluorescent color wheel 20 can immediately detect the dynamic balance by the dynamic balance detecting device A30, thereby reducing the production time of the fluorescent color wheel 20 or the projector 1.
若於再度檢測中螢光色輪20之不平衡量大於預定數值，則可再次執行本實施例之動平衡校正方法。 If the unbalance amount of the fluorescent color wheel 20 is greater than a predetermined value in the re-detection, the dynamic balance correcting method of the present embodiment can be performed again.
由於於本實施例中是利用平衡孔B1來調整螢光色輪20之動平衡，因此，不需要等待於習知技術中利用黏膠來黏置配重塊的方法中的黏膠固化的時間，進而減少了螢光色輪20的製作時間。 Since the balance of the fluorescent color wheel 20 is adjusted by the balance hole B1 in this embodiment, there is no need to wait for the curing time of the glue in the method of using the adhesive to adhere the weight in the prior art. Further, the production time of the fluorescent color wheel 20 is reduced.
綜上所述，本發明之螢光色輪之動平衡校正方法，可藉由形成平衡孔的方式，快速且精確地校正螢光色輪之動平衡，且能減少螢光色輪之製作時間。由於不需要配重塊因此能減少投影機之損壞因素。 In summary, the method for correcting the dynamic balance of the fluorescent color wheel of the present invention can quickly and accurately correct the dynamic balance of the fluorescent color wheel by forming a balance hole, and can reduce the production time of the fluorescent color wheel. . Since the weight is not required, the damage factor of the projector can be reduced.
本發明雖以各種實施例揭露如上，然而其僅為範例參考而非用以限定本發明的範圍，任何熟習此項技藝者，在不脫離本發明之精神和範圍內，當可做些許的更動與潤飾。因此上述實施例並非用以限定本發明之範圍，本發明之保護範圍當視後附之申請專利範圍所界定者為準。 The present invention has been described above with reference to various embodiments, which are intended to be illustrative only and not to limit the scope of the invention, and those skilled in the art can make a few changes without departing from the spirit and scope of the invention. With retouching. The above-described embodiments are not intended to limit the scope of the invention, and the scope of the invention is defined by the scope of the appended claims.
S101至S107‧‧‧步驟 S101 to S107‧‧‧ steps
Claims (10)
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| TW103146465A TW201624103A (en) | 2014-12-31 | 2014-12-31 | Dynamic balance correction method for phosphor wheel, and phosphor wheel with dynamic balance correction |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106925942A (en) * | 2017-03-20 | 2017-07-07 | 中信戴卡股份有限公司 | A kind of method for wheel balance correction |
| CN114488673A (en) * | 2020-10-27 | 2022-05-13 | 中强光电股份有限公司 | Wavelength conversion element |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106925942A (en) * | 2017-03-20 | 2017-07-07 | 中信戴卡股份有限公司 | A kind of method for wheel balance correction |
| CN114488673A (en) * | 2020-10-27 | 2022-05-13 | 中强光电股份有限公司 | Wavelength conversion element |
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