200916937 九、發明說明： 【發明所屬之技術領域】 本發明涉及一種色輪’尤其涉及一種可優化色彩表現效 果之色輪。 【先前技術】 目前，投影儀主要分為LCD式和DLP式（Digital Light Processing )兩種，其中DLP投影儀採用DMD(Digital Micromirror Device)微鏡片反射技術，並採用色輪（Color Wheel)以完成對色彩之分離和處理。 於DMD投影系統中，光源發出之白光藉由聚焦透鏡聚 焦於色輪上，色輪主要係由紅、綠、藍等彩色濾光片之組合， 藉由高速馬達使彩色濾光片轉動，以將白光進行分色，然後 將特定顏色之光束發射到DMD表面上。DMD表面由與像素 數量對應之小反射鏡組成，這些小反射鏡根據視頻訊號之控 制而轉動’當小反射鏡轉動到其反射光束經過投影儀之透鏡 時’表示該像素點打開’當小反射鏡轉動到其反射光束偏離 投影儀之透鏡時’表示該像素點關閉，打開和關閉之時間比 表不该像素之兜度。當紅光射到DMD表面上時，DMD上之 鏡片按照紅色視頻訊號將這些小鏡子旋轉到開或關，使得需 要顯示之反射光束經過投影儀之透鏡投影到大螢幕上，綠色 和藍色光及視頻訊號亦係如此工作，人體視覺系統集中投赘 出來之紅、綠、監晝面便看到了·一全彩色圖像。 請參閱圖1 ’其為先前之一種色輪1〇〇。該色輪1〇〇包 括濾' 光片組1〇、支樓件20、馬達26以及钻貼於支撐件2〇 200916937 侧壁23之時標24 ( Timing Mark )、感測器30及處理器25。 濾光片組10包括有紅色濾光片12、綠色濾光片14和藍色濾 光片16，三者都為扇形並構成一個圓盤。濾光片組10固設 於支撐件20上，馬達26帶動支撐件20轉動，從而驅動三色 濾光片組10轉動。時標24用於幫助投影儀系統識別當前三 色遽光片組10中紅色滤光片12、綠色遽光片14和監色遽光 片16之位置。 當時標24設置於支撐件20之側壁23且對應濾光片組 10為紅色濾光片12段時，感測器30之感測器晶片34不間 斷地發射光束17至支撐件20之侧壁23上，光束17剛好射 到時標24上時，該光束17被時標24吸收，此刻，光束17 不會反射至感測器30之感測器晶片34上，因此感測器30 便知道所述色輪圓盤之傳動到紅色濾光片12位置，即此刻投 影出來之視頻圖像為紅色，並將當前色輪圓盤之位置情況傳 達至處理器25，處理器25根據色輪圓盤之轉動情況控制 DMD上之鏡片旋轉到開或關，經過投影鏡頭將各色彩合成後 將影像投射至螢幕。由於，色輪100之濾光片組10之各色濾 光片之間之位置事先已分佈好，處理器25知道一單色濾光片 之位置便可推斷出整個濾光片組10之轉動位置，以便處理器 25精準地切換各顏色之時機。可見，於高速旋轉之濾光片組 10中，投影儀器對色輪100當前顏色之識別直接影響著顯像 之色彩品質。 惟，投影機係高亮度產品，會於機殼内部產生許多雜散 光束18,先前技術之感測器30用於發射光束17並感測反射 8 200916937 回來之光束17之感測器晶片34直接裸露於外界。雜散光束 18會直接射入至感測器30之感測器晶片34上，如此將影響 感測器晶片34之靈敏度，容易出現處理器25與濾光片組10 之間時序不同步之問題，進一步影響處理器25進行後續之色 彩合成處理，從而造成晝質不清晰，色彩不鮮明。 【發明内容】 有鑒於此，有必要提供一種避免雜散光干擾感測器，改 善處理器與濾光片之間時序同步問題之色輪。 一種色輪，其包括多色濾、光片組、馬達、支樓件、感測 器及處理器。所述多色濾光片組包括複數個不同顏色之扇形 遽光片。所述支撐件包括第一表面、與第一表面相對之第二 表面及位於第一表面與第二表面之間之側壁。所述多色濾光 片組固定於所述固定件之第二表面上。所述馬達設置於所述 固定件之第一表面侧，用於帶動固定件旋轉以驅動多色濾光 片組旋轉。所述傳感器具有一殼體及一感測器晶片，所述殼 體包括一與所述支撐件之侧壁相對之第一侧面，所述感測器 晶片設於所述第一侧面上且正對支撐件之侧壁設置。該傳感 晶片用於感測多色濾光片組之位置並把當前多色濾光片組之 位置情況傳達至所述處理器。所述處理器根據多色濾光片組 之位置情況控制色彩合成處理。所述色輪還包括一設置於感 谢益殼體上之擔光元件，該指'光元件以壞繞所述感測器晶片 之方式設置於感測器之殼體之第一侧面上，用於阻擋雜散光 射至所述感測器晶片。 相對於先前技術，所述色輪之感測器之殼體上設有擋光 9 200916937 元件，該擋光元件用於阻擋雜散光射至所述感測器之感測器 晶片，提高了感測器晶片之靈敏度，使感測器更準確地把當 前多色濾光片組之位置傳達至處理器，以便處理器精準地切 換各顏色之時機，從而可有效避免晝質不清晰，優化了色彩 表現效果。 【實施方式】 以下將結合附圖對本發明作進一步之詳細說明。 請參閱圖2，為本發明實施例之色輪200，其包括濾光 片組50、支撐件90、馬達70、感測器60及處理器55。 本實施例中，所述濾光片組50包括複數個不同顏色之 扇形濾光片有紅色濾、光片52、綠色濾光片54和藍色濾光片 56，實際應用中，所述濾光片組50亦可為四色濾光片 RGB+W，其中W表示白色；六色濾光片RGBRGB等，並不 限於本實施例。 所述支撐件90為一中空之筒狀結構，其包括第一表面 91、與第一表面91相對之第二表面92及設於第一表面91 與第二表面之間之側壁93。所述濾光片組50可以藉由膠合 之方式固設於支撐件90之第二表面92上，亦可以藉由螺合 之方式固定於支撐件90之第二表面92上。所述支撐件90 之侧壁93上貼有一時標94，本實施例中，所述時標94之位 置對應於紅色濾光片52段位置，實際應周中，該時標94之 位置亦可對應於綠色濾光片54段或藍色濾光片56段位置， 並不限於本實施例。 所述馬達70設置於支撐件90之第一表面91方向上且 10 200916937 遠離濾光片組50。所述馬達70用於帶動支撐件90旋轉以驅 動濾光片組50旋轉。 所述感測器60具有一殼體63及一感測器晶片64,所述 感測器晶片64包括一發射裝置（圖未示）及一訊號處理裝置 (圖未示）。本實施例中，所述殼體63為一四邊框形結構， 其包括一與所述支撐件90之侧壁93相對之第一侧面62。所 述感測器晶片64設置於所述第一侧面62上。本實施例中， 所述第一侧面62開設有一開口 61，該開口 61正對所述支撐 件90之側壁設置，所述感測器晶片64收容於所述殼體63 内且穿出於該開口 61，亦即，所述感測器晶片64正對支撐 件90之側壁93設置。 所述感測器晶片64之發射裝置用於垂直地發射光束37 到支撐件90之侧壁93上，該感測器晶片64之訊號處理裝置 接收反射回來之光束37。所述光束37可以為紅外光、紫外 光或雷射中之一種。優選地，所述光束37為一紅外線光。所 述光束37之直徑小於所述時標94之尺寸，所述感測器晶片 64之發射裝置不間斷地發射光束37至支撐件90之側壁93 上，光束37剛好射到時標94上時，該光束37被時標94吸 收，此刻，光束37不會反射至感測器晶片64之訊號處理裝 置，因此感測器晶片64之訊號處理裝置便知道所述濾光片組 50之傳動到紅色濾光片52位置，即此刻投影出來之視頻圖 像為紅色，並將當前色輪200之濾光片組50之轉動位置情況 傳達至處理器55進行後續之色彩合成處理。 所述處理器55與所述感測器60電性連接，用於接收感 11 200916937 測器晶片64之訊號處理裝置傳達過來之濾光片組50之轉動 位置情況。由於，色輪200之濾光片組50之各色濾光片之間 之位置事先已分佈好，處理器55知道一單色濾光片之位置便 可推斷出整個濾光片組50之轉動位置，如此，處理器55精 準地切換各顏色之時機。使得處理器55與濾光片組50之間 時序同步。 所述色輪200還進一步包括一擋光元件80,所述擋光元 件80之尺寸及形狀與所述感測器60殼體63之尺寸及形狀對 應。本實施例中，該擋光元件80對應為一中空結構，具有與 所述感測器60之殼體63相膠合之結合部81及對應於所述感 測器晶片64之通孔82。該擋光元件80以環繞所述感測器晶 片64之方式膠合於所述殼體63之第一侧面62上。該擋光元 件80之結合部81具有相互鄰接之四個侧壁83，分別用於阻 擋雜散光射至所述感測器晶片64。所述感測器晶片64之發 射裝置射出之光束37經過所述通孔82照射至所述支撐件90 之側壁93。該擋光元件80之通孔82尺寸以不遮蔽感測器晶 片64之發射裝置射出光束37至支撐件90之側壁93且光束 37能不被遮蔽地反射至感測器晶片64之訊號處理裝置為 宜。所述擋光元件80之材質可以為不透光塑膠，優選地，所 述擋光元件80之顏色可以為黑色或者表面塗成黑色，以便吸 收雜散光。 實際應用中，所述擋光元件80亦可以螺合之方式固設 於所述殼體63之第一侧面62上，或者該擋光元件80與所述 殼體63 —體成型。當然，所述擋光元件80亦可以為四個擋 12 200916937 光片，該四個擋光片之寬度與感則器60之殼體63之寬度相 -等。該四個擋光片分別設置於感測裔60殼體63之邊框相對 .應位置。當感測器60之殼體63為圓形結構時，所述擋光元 件80相應地做成圓環形，所述擋光兀件80之形狀隨感測器 60之結構形狀變化而相應變化’旅不限於本實施例。 下面結合上述結構以詳細敍述本發明之工作原理：馬達 7〇轉動時帶動所述支撐件90及設置於支撐件90第二表面％ 上之濾光片組50同步旋轉，同時，所述感測器60之成測器 晶片64之發射裝置不間斷地發射光束37,感測器晶片64之 讯號處理模組接收反射回來之光束37，當支撐件9〇之位置 轉到所述時標94對準光束37之位置時，時標94吸收該反射 =束37 ’使得感測器晶片64之訊號處理裝置感應不到反 二置本 色濾光片組50轉動tL"處理装置便知道此時多 間之位置拿Λ f所述滤光片組50之各色濾光片之 便可推斷出整個濾光片 、早色濾光片之位置 設置於感測器60之殼體63上^置。所述擋光元件80 更精準地把多色濾光片組^裝置之靈敏度得到提高， 55，並以此作為；制夕 ' 之轉動位置情況傳達至處理器 行同步以及光=據色'=與麵(圖㈣進 所述色相準叙彩色光合成。 用於阻擋雜Μ射至所_光元件 以馮态之感測器晶片，提高了感測 13 200916937 器晶片之靈敏度，使感測ϋ更準確地把當前多色濾光片組之 置傳達至處理益，以便處理器精準地切換各顏色之時機， 從而可有效避免晝質*清晰，優化了色彩表現效果。 、·示上所述，本發明符合發明專利要件，爰依 2利申請=惟’以上所述者僅為本發明 = 1月之靶圍亚不以上述實施方式 熟悉本荦技蓺之人丄ρ >IΑ 飞马限’舉凡 木筏云之人士杈依本發明之精神 都或變化，皆庙、、:P装 、 之專效修 …心盍於以下申請專利範圍内。 【圖式簡單說明】 圖1係一種先前之色輪結構示意圖； 圖2係本發明實施例之色輪結構示意圖 【主要元件符號說明】 100 ，200 光束 10 »50 紅色濾光片 14，54 監色濾、光 25 >55 支撐件 91 苐二表面 23，93 馬達 24，94 感測器 61 第一側面 40 »63 感測器晶片 80 結合部 82 擔光元件側壁 18 17，37 12 >52 16，56 20 >90 92 26 »70 30 >60 62 34 >64 81 83 色輪 遽光片組 綠色濾光片 處理器 第一表面 側壁 時標 開口 殼體 擋光元件 通孔 雜散光束 14200916937 IX. Description of the Invention: [Technical Field] The present invention relates to a color wheel', and more particularly to a color wheel that optimizes color performance. [Prior Art] At present, projectors are mainly divided into LCD type and DLP type (Digital Light Processing). The DLP projector adopts DMD (Digital Micromirror Device) microlens reflection technology and adopts Color Wheel to complete Separation and processing of colors. In the DMD projection system, the white light emitted by the light source is focused on the color wheel by a focusing lens, and the color wheel is mainly composed of a combination of color filters such as red, green, and blue, and the color filter is rotated by a high speed motor to The white light is separated and then a specific color beam is emitted onto the DMD surface. The DMD surface consists of small mirrors corresponding to the number of pixels. These small mirrors rotate according to the control of the video signal. 'When the small mirror rotates to its reflected beam through the lens of the projector', it indicates that the pixel is turned on. When the mirror is rotated until its reflected beam is off the lens of the projector, it means that the pixel is turned off, and the time of opening and closing is longer than the pixel of the pixel. When red light hits the surface of the DMD, the lens on the DMD rotates the small mirrors on or off according to the red video signal, so that the reflected beam that needs to be displayed is projected onto the large screen through the lens of the projector, green and blue light and video. The signal is also working like this. The human body vision system concentrates on the red, green, and supervised faces and sees a full-color image. Please refer to Figure 1 'which is a previous color wheel 1〇〇. The color wheel 1〇〇 includes a filter 'strip set 1〇, a branch member 20, a motor 26, and a timing mark 24, a sensor 30, and a processor drilled on the side wall 23 of the support member 2〇200916937. 25. The filter set 10 includes a red filter 12, a green filter 14, and a blue filter 16, all of which are fan-shaped and constitute a disk. The filter set 10 is fixed to the support member 20, and the motor 26 drives the support member 20 to rotate, thereby driving the three-color filter set 10 to rotate. The time scale 24 is used to assist the projector system in recognizing the position of the red color filter 12, the green color light film 14, and the color light management film 16 in the current three-color film group 10. When the label 24 is disposed on the sidewall 23 of the support member 20 and the corresponding filter set 10 is the red filter 12 segment, the sensor wafer 34 of the sensor 30 uninterruptedly emits the light beam 17 to the sidewall of the support member 20. At 23, when the beam 17 is just incident on the time scale 24, the beam 17 is absorbed by the time stamp 24, at which point the beam 17 is not reflected onto the sensor wafer 34 of the sensor 30, so the sensor 30 knows The color wheel disc is driven to the position of the red filter 12, that is, the video image projected at this moment is red, and the position of the current color wheel disc is transmitted to the processor 25, and the processor 25 is based on the color wheel circle. The rotation of the disc controls the lens on the DMD to rotate to on or off, and the color is combined by the projection lens to project the image onto the screen. Since the position between the color filters of the filter set 10 of the color wheel 100 has been distributed beforehand, the processor 25 knows the position of a monochromatic filter to infer the rotational position of the entire filter set 10. In order for the processor 25 to accurately switch the timing of each color. It can be seen that in the high-speed rotating filter group 10, the recognition of the current color of the color wheel 100 by the projection instrument directly affects the color quality of the image. However, the projector is a high-brightness product that produces a number of stray beams 18 inside the casing. The prior art sensor 30 is used to emit the beam 17 and sense the reflection of the sensor chip 34 directly reflected by the light beam 17 of 200916937. Exposed to the outside world. The stray light beam 18 will directly enter the sensor chip 34 of the sensor 30, which will affect the sensitivity of the sensor chip 34, and the timing synchronization between the processor 25 and the filter set 10 is prone to occur. Further affecting the processor 25 for subsequent color synthesis processing, resulting in unclear enamel and unclear color. SUMMARY OF THE INVENTION In view of the above, it is necessary to provide a color wheel that avoids stray light interference sensors and improves timing synchronization between the processor and the filter. A color wheel includes a multi-color filter, a light sheet set, a motor, a branch member, a sensor, and a processor. The multi-color filter set includes a plurality of fan-shaped calenders of different colors. The support member includes a first surface, a second surface opposite the first surface, and a sidewall between the first surface and the second surface. The multi-color filter set is fixed to the second surface of the fixing member. The motor is disposed on the first surface side of the fixing member for driving the fixing member to rotate to drive the multi-color filter group to rotate. The sensor has a housing and a sensor wafer, the housing includes a first side opposite to a sidewall of the support member, and the sensor wafer is disposed on the first side and is positive Set to the side wall of the support. The sensing die is used to sense the position of the multi-color filter set and communicate the position of the current multi-color filter set to the processor. The processor controls color synthesis processing in accordance with the position of the multi-color filter set. The color wheel further includes a light-storing component disposed on the thank-you housing, the finger light element being disposed on the first side of the housing of the sensor in a manner of being badly wound around the sensor chip. Blocking stray light from the sensor wafer. Compared with the prior art, the sensor of the color wheel is provided with a light blocking 9 200916937 element, which blocks the stray light from blocking the sensor chip of the sensor, and improves the sense. The sensitivity of the detector chip enables the sensor to more accurately convey the position of the current multi-color filter set to the processor, so that the processor can accurately switch the timing of each color, thereby effectively avoiding unclear enamel and optimizing Color performance. [Embodiment] Hereinafter, the present invention will be further described in detail with reference to the accompanying drawings. Referring to FIG. 2, a color wheel 200 according to an embodiment of the present invention includes a filter set 50, a support member 90, a motor 70, a sensor 60, and a processor 55. In this embodiment, the filter set 50 includes a plurality of fan filters of different colors, a red filter, a light sheet 52, a green filter 54, and a blue filter 56. In practical applications, the filter The light sheet group 50 may also be a four-color filter RGB+W, where W represents white, six-color filter RGBRGB, and the like, and is not limited to the embodiment. The support member 90 is a hollow cylindrical structure including a first surface 91, a second surface 92 opposite the first surface 91, and a side wall 93 disposed between the first surface 91 and the second surface. The filter set 50 can be fixed to the second surface 92 of the support member 90 by gluing, or can be fixed to the second surface 92 of the support member 90 by screwing. A time stamp 94 is attached to the side wall 93 of the support member 90. In this embodiment, the position of the time stamp 94 corresponds to the position of the red filter 52 segment. Actually, the position of the time stamp 94 is also It may correspond to the position of the green filter 54 segment or the blue filter 56 segment, and is not limited to this embodiment. The motor 70 is disposed in the direction of the first surface 91 of the support member 90 and 10 200916937 away from the filter set 50. The motor 70 is used to drive the support member 90 to rotate to drive the filter set 50 to rotate. The sensor 60 has a housing 63 and a sensor wafer 64. The sensor wafer 64 includes a transmitting device (not shown) and a signal processing device (not shown). In this embodiment, the housing 63 is a four-frame structure including a first side 62 opposite to the side wall 93 of the support member 90. The sensor wafer 64 is disposed on the first side 62. In this embodiment, the first side surface 62 defines an opening 61. The opening 61 is disposed opposite the sidewall of the support member 90. The sensor wafer 64 is received in the housing 63 and penetrates the same. The opening 61, that is, the sensor wafer 64 is disposed opposite the side wall 93 of the support member 90. The emitter of the sensor wafer 64 is used to vertically emit a beam 37 onto the sidewall 93 of the support member 90, and the signal processing device of the sensor wafer 64 receives the reflected beam 37. The beam 37 can be one of infrared light, ultraviolet light or a laser. Preferably, the light beam 37 is an infrared light. The diameter of the beam 37 is smaller than the size of the time stamp 94, and the emitting device of the sensor wafer 64 uninterruptedly emits the light beam 37 onto the side wall 93 of the support member 90, and the light beam 37 just hits the time scale 94. The beam 37 is absorbed by the time stamp 94. At this point, the beam 37 is not reflected to the signal processing device of the sensor wafer 64. Therefore, the signal processing device of the sensor wafer 64 knows that the filter group 50 is driven to The position of the red filter 52, that is, the video image projected at this moment is red, and the rotational position of the filter set 50 of the current color wheel 200 is transmitted to the processor 55 for subsequent color synthesis processing. The processor 55 is electrically connected to the sensor 60 for receiving the rotational position of the filter set 50 transmitted by the signal processing device of the sensor chip 64. Since the position between the color filters of the filter set 50 of the color wheel 200 has been previously distributed, the processor 55 knows the position of a monochromatic filter to infer the rotational position of the entire filter set 50. Thus, the processor 55 precisely switches the timing of each color. The timing between the processor 55 and the filter bank 50 is synchronized. The color wheel 200 further includes a light blocking member 80, the size and shape of the light blocking member 80 corresponding to the size and shape of the housing 63 of the sensor 60. In this embodiment, the light blocking member 80 corresponds to a hollow structure, and has a joint portion 81 glued to the casing 63 of the sensor 60 and a through hole 82 corresponding to the sensor wafer 64. The light blocking member 80 is glued to the first side 62 of the housing 63 in a manner surrounding the sensor die 64. The joint portion 81 of the light blocking member 80 has four side walls 83 adjacent to each other for blocking stray light from being incident on the sensor wafer 64. A light beam 37 emitted from a transmitting device of the sensor wafer 64 is irradiated to the side wall 93 of the support member 90 through the through hole 82. The through hole 82 of the light blocking member 80 is sized to shield the signal processing device from the light emitting device 37 of the sensor wafer 64 to the side wall 93 of the support member 90 and the light beam 37 can be reflected to the sensor wafer 64 without being shielded. It is appropriate. The material of the light blocking member 80 may be an opaque plastic. Preferably, the color of the light blocking member 80 may be black or the surface may be black to absorb stray light. In a practical application, the light blocking member 80 can also be screwed onto the first side 62 of the housing 63, or the light blocking member 80 can be integrally formed with the housing 63. Of course, the light blocking member 80 can also be four shutters 12 200916937 light sheets, the width of the four light blocking sheets being equal to the width of the housing 63 of the sensor 60. The four light blocking sheets are respectively disposed on the opposite side of the frame of the sensing body 60 housing 63. When the housing 63 of the sensor 60 has a circular structure, the light blocking member 80 is correspondingly formed into a circular shape, and the shape of the light blocking member 80 changes correspondingly according to the structural shape of the sensor 60. Travel is not limited to this embodiment. The working principle of the present invention will be described in detail below with reference to the above structure: when the motor 7 turns, the support member 90 and the filter group 50 disposed on the second surface % of the support member 90 are synchronously rotated, and at the same time, the sensing The transmitting device of the detector chip 64 of the device 60 continuously emits the light beam 37, and the signal processing module of the sensor chip 64 receives the reflected beam 37, and the position of the supporting member 9 turns to the time stamp 94. When the position of the light beam 37 is aligned, the time stamp 94 absorbs the reflection = beam 37' so that the signal processing device of the sensor chip 64 does not sense the reverse two-color filter group 50 rotation tL" The position of the filter and the color filters of the filter group 50 can be inferred to position the entire filter and the color filter on the housing 63 of the sensor 60. The light blocking element 80 more accurately improves the sensitivity of the multi-color filter set device, 55, and uses this as the rotation position of the system to the processor line synchronization and the light=color= In contrast to the surface (Fig. 4), the color phase is synthesized in the color phase. The sensor wafer for blocking the enthalpy of the ray to the optical element improves the sensitivity of the sensing 13 200916937 wafer, so that the sensing is further improved. Accurately convey the current multi-color filter set to the processing benefit, so that the processor can accurately switch the timing of each color, thereby effectively avoiding the enamel*clearness and optimizing the color expression effect. The invention complies with the invention patent requirement, and the application according to the invention is only for the invention. The above-mentioned target is not the one who is familiar with the technology in the above embodiment. Αρ >IΑ 'People who use the woods to change the spirit of the invention are all changes, all temples, and: P installed, the special effects repair ... heart is within the scope of the following patent application. [Simplified schematic] Figure 1 is a previous Schematic diagram of color wheel structure; Figure 2 is a Example of color wheel structure [Key component symbol description] 100,200 beam 10 »50 red filter 14,54 color filter, light 25 >55 support 91 苐2 surface 23,93 motor 24,94 sensing The first side 40 » 63 sensor wafer 80 joint portion 82 the light carrying member side wall 18 17, 37 12 > 52 16, 56 20 > 90 92 26 » 70 30 > 60 62 34 > 64 81 83 Color wheel enamel group green filter processor first surface side wall hour mark opening housing light blocking element through hole stray light beam 14