127¾ 益.d(>c/r 九、發明說明： 【發明所屬之技術領域】 本發明是有關於一種反射鏡模組(reflective mirror module)，且特別是有關於一種用以改善投影顯示裝置 (projection apparatus)之影像品質的反射鏡模組。 【先前技術】 近年來，各種顯示技術已廣泛地應用於日常生活上， 如液晶顯示面板、電漿顯示面板、投影機等。在大尺寸影 像的顯示方面，又以投影裝置最為實用，因此，投影裝置 已逐漸成為大尺寸顯示不可或缺的技術之一。一般而言， 當投影裝置將影像投至屏幕上時，影像中各個晝素之間常 會存在有黑色區域，而此黑色區域整體上看起來是呈現網 狀。由於投影裝置大多是應用在大尺寸的影像顯示上，因 此上述的網狀黑色區域常會被使用者所察覺，造成影像品 質的劣化。 為了解決上述影像品質劣化的問題，已有一些習知技 ，（如US 5,402，184)相繼被提出，這些習知技術主要是 猎由振動光料擎(Gptieal engine)巾的賴或是投影鏡頭 (project· lens) ’以快速地切換影像在屏幕上的投影位 置，進而籍或減少網狀黑色區域。然而，在 稜鏡本身的重量與體積很大，若要振動投 Γ二二疋夂兄’其振動機構勢必相當複雜且會佔據相當 間’因此，振動投影鏡頭或是稜鏡的作法在實際量 產上的可行性較低。 Ρ成牡貝丨不里 5 ,doc/r 【發明内容】 本發明的一目的，就是在提供一種反射鏡模組，以改善 投影顯示裝置之影像品質。 ϋ 本發明的另一目的，就是在提供一種反射鏡模組，藉由 振動反射鏡，以快速地切換影像在屏幕上的投影位置，進 而消除或減少網狀黑色區域產生。 基於上述目的或其他目的’本發明提出一種反射鏡模 組，其包括定位基座、致動器、支撐軸、彈片、反射鏡基 座和反射鏡。其中，致動器、支撐軸及彈片皆配置於定位 基座上，而反射鏡基座係與彈片連接。此外，彈片係將反 射鏡基座撐起，以使反射鏡基座承靠於支撐軸上，且致動 器帶動反射鏡基座，使其以支撐軸為支點反覆振動。反射 鏡則配置於此反射鏡基座上。上述之反射鏡模組可應用於 投影裝置中，以降低畫素的可視度。 在本發明之一實施例中，致動器可為音圈馬達、步進 馬達或壓電陶究。支撐軸可為樞軸(piv〇t)或軸承。 彈片例如具有一開口，且反射鏡基座係透過此開口承靠於 ^撐軸上。反射鏡模組更包括一反射鏡固定元件，用以固 疋^射鏡與反射鏡基座之相對位置，反射鏡固定元件可為 黏著固疋外框或這些元件之組合。此外，固定外框例 如係藉由鎖固、扣合或黏著的方式固定於反射鏡基座上。 反射^:模組更包括—配置於反射顧定元件航射鏡之間 的固定件。反射鏡模組更包括一配置於定位基座上之支撐 轴调整機構’以調整切軸之位置。反射鏡模組更包括- 6 doc/r 配置於反射鏡基座與定位基座之間的阻尼體。反射鏡模組 ^包括一配置於定位基座上的定位基座調整機構。值得注 思的是，定位基座例如具有多個螺孔，而定位基座調整機 構例女匕括夕個固疋螺絲以及多個調整螺絲。藉由調整虫累 絲、固定螺絲與螺孔的配合可將定位基座精準地固定於其 他元件（如投景彡鏡頭）上。反射鏡模組更包括一配置於定 位基座上之感測器，以感測反射鏡之位置。反射鏡模組更 包括一配置於定位基座上之驅動電路，且此驅動電路係與 致動益電性連接。此外，上述之彈片可以是一拱形彈片。 反射鏡模組可應用於一 L形投影鏡頭。 基於上述，本發明利用致動器、彈片以及支樓軸的組 合來振動反賴，如猶法可提供十分敎機，且實際 量產的可行性很高。 *為讓本發明之上述和其他目的、特徵和優點能更明顯 易懂，下文特舉較佳實施例，並配合所附圖式，作詳細說 明如下。 【實施方式】 5月參考圖1，反射鏡模組1〇包括一定位基座110、一 致動器120、-支撐車由13〇、一彈片14〇、一反射鏡基座15〇 以及了反射鏡160。其中，致動器12〇、支撐軸13〇和彈片 1二〇係分別配置在定位基座110上。此彈片M〇例如可以 是一拱形彈片，且其兩端係固定於定位基座110上。再者， 反射鏡基座150係與彈片H〇相連接，狀射鏡160係配 置於反射鏡基座150上。在本實施例中，彈片14〇係用來 12聰 doc/r 禮起反射鏡基座150，以使反射鏡基座15G以支撐軸13〇 為支2反後振動。值得注意的是，彈片能夠提供一向 上推擠的推力至反射鏡基座15〇上，此向上推擠的推力可 以=來支撐住反射鏡基座15〇，使得反射鏡基座15〇能夠 %疋地承靠於支撐軸13〇。此外，在反射鏡基座15()受到 致動器120帶動而快速振動的期間，彈片14〇所提供之向 上推擠的外力可以有效地維持反射鏡基座15〇振動的穩定 性。 具體而言，本實施例之彈片14〇例如具有一開口 142, 且反射鏡基座150可透過開口 142承靠於支撐軸130上。 §反射鏡基座150受到致動器(actuat〇r)i2〇的帶動時，反 射鏡基座150及其上之反射鏡16〇便會以支撐軸13〇為支 點反覆振動。由上述可知，定位基座11〇與支撐軸13〇被 視為定件(fixed part)，而能夠被致動器12〇所帶動的反射 鏡基座150被視為動件(moving part)。在本實施例中，致 動器120例如是音圈馬達(v〇ice c〇al m〇t〇r)、步進馬達⑻叩 motor)或壓電陶瓷(piezoeiectric ceramic)，而支撐軸 13〇 例 如可以是枢軸(pivot)或軸承(bearing)。 本發明中反射鏡160與反射鏡基座15〇之間可以採用 任何可行的固定方式，以下將舉例說明反射鏡160與反射 鏡基座150之間的固定方式，但其並非用以限定本發明之 固定方式。 請接著參考圖2A與2B，為了使反射鏡16〇能夠牢靠 地固定於反射鏡基座150上，反射鏡模組丨5〇可更包括一 lD5oStwf.doc/r 反射鏡固定元件170，用以固定反射鏡160與反射鏡基座 150的相對位置。由圖2A與圖2B可知，反射鏡固定元件 170例如是一固定外框。當然，反射鏡固定元件17〇亦可 以是一黏著劑，或者是使用黏著劑搭配上固定外框。此外， 固疋外框例如係與反射鏡基座15〇相扣合。當然，固定外 框亦可採用鎖固或者黏著等方式固定於反射鏡基座15〇 上。 反射鏡模組10可更包括一固定件180及一阻尼體 190其中，固疋件180例如是一橡膠墊片且配置於反射鏡 固定το件170與反射鏡160之間，以有效地固定反射鏡16〇 於，射鏡基座150。阻尼體190係配置於反射鏡基座15〇 與定位基座110之間，以減低振動的影響。要注意的是， 固疋件180與阻尼體19〇應視設計需求而選擇性地配置 適當位置。 ^射鏡模組10可更包括-支撺軸調整機構係配 置於疋位基座110上，用以調整支撐軸13〇在定位基板 上之位置。具體而言，支撐軸調整機構200可為一個以上 的調整螺絲2GGa，而這些調整螺絲·a侧鎖於支標轴 130下方的定位基座110上。當支撐軸13〇與定位基座ιι〇 的相對位置♦生偏差且需要调整時，可藉由將調整螺絲 篇（支撐_錢構旋人錢出的方式來調整支 撐軸130與定位基座110的相對位置。值得注意的是，由 於支撐軸no與定位基座110的相對位置會直接影塑到反 射鏡160的位置與擺放角度，若反射鏡模組1G具有^轴 9 l2^m f.doc/r 調整機構200時，將使得反射鏡160的位置與擺放角度有 被調校的可能性，進而減輕組裝誤差的影響。 本實施例之反射鏡模組10可更包括一定位基座調整 機構210係配置於定位基座11〇，以使反射鏡模組能夠 很精準地安裝於其他元件（如投影鏡頭）上的適當位置。 具體而言，定位基座調整機構210可為多個固定螺絲21〇a 以及多個調整螺絲210b，且定位基座11〇上具有多個對應 之螺孔210c與210d，當反射鏡模組1〇欲組裝至其他元件 (如投影鏡頭）上時，吾人可藉由固定螺絲2i〇a、調整螺 絲210b與螺孔210c與210d的搭配，將反射鏡模組1〇之 定位基座110鎖固於其他元件（如投影鏡頭）上。 值得注意的是，本實施例之反射鏡模組1〇可更包括 一配置於定位基座110上之感測器220(如圖2A所示），以 感測反射鏡160之位置。此外，本實施例之反射鏡模組1〇 亦可進一步包括一配置於定位基座11〇上之驅動電路 230,此驅動電路230係與致動器12〇電性連接，以依照所 需的模式來控制致動器120。 圖3緣示為具有反射鏡模組之l型投影鏡頭的侧視 圖。請參考圖3，本實施例之的L型投影鏡頭20係由多個 透鏡22以及上述之反射鏡模組所構成。其中，透鏡22 可區分成透鏡群22a與透鏡群22b。在投影散置中，經過 光學引擎處理後之影像會經過透鏡群22a，並藉由反射鏡 模組10反射，之後才經由透鏡群22b投影至屏幕上。在上 述之L型投影鏡頭20中，由於反射鏡模組1〇可以快速地 127観 f.doc/r 切換影像投影至屏幕上的位置，進而消除或減少網狀黑色 區域產生，故此具有反射鏡模組10之[型投影鏡頭2〇可 投影出影像品質良好的晝面。 綜上所述，本發明之反射鏡模組至少具有下列優點·· 1·反射鏡模組中的彈片可使反射鏡在致動器的帶動 下穩定地振動。 2·反射鏡模組中的阻尼體可以有效地減低操作時的 噪音量，且可有效避免反射鏡滑動。 3·反射鏡模組中的支撐軸調整機構能夠使反射鏡的 位置與擺放角度有被調校的可能性，進而減輕組裝誤差 影響。 、 ^ 4·反射鏡模組中的定位基座調整機構可以使反射鏡 模組能夠很精準地安裝於其他元件（如投影鏡頭）上的 當位置。 雖然本發明已以較佳實施例揭露如上，然其並非用以 限J本發明，任何熟習此技藝者，在不脫離本發明之精神 =範圍内，當可作些許之更動與潤飾，因此本發明之保護 fe圍當視後附之申請專利範圍所界定者為準。 【圖式簡單說明】 一圖1繪示為依照本發明較佳實施例反射鏡模組之剖面 示意圖。 圖2A與圖2B分別綠示為圖1中反射鏡模組之立體示 意圖與分解示意圖。 11 doc/r 127¾¾. 圖3繪示為具有反射鏡模組之L型投影鏡頭的側視 圖。 【主要元件符號說明】 10 :反射鏡模組 20 : L型投影鏡頭 22 :透鏡 22a、22b :透鏡群 110 :定位基座 120 :致動器 130 :支撐轴 140 :彈片 142 ··開口 150 :反射鏡基座 160 :反射鏡 170 :反射鏡固定元件 180 ··固定件 190 :阻尼體 200 :支撐軸調整機構 200a :調整螺絲 210 :定位基座調整機構 210a :固定螺絲 210b :調整螺絲 210c、210d :螺孔 220:感測器 230 ·•驅動電路 12BACKGROUND OF THE INVENTION 1. Field of the Invention This invention relates to a reflective mirror module, and more particularly to an improved projection display device. (Projection Apparatus) Image quality mirror module [Prior Art] In recent years, various display technologies have been widely used in daily life, such as liquid crystal display panels, plasma display panels, projectors, etc. In terms of display, the projection device is the most practical. Therefore, the projection device has gradually become one of the indispensable technologies for large-size display. Generally, when the projection device projects the image onto the screen, the various elements in the image are There is often a black area, and the black area appears to be mesh-like as a whole. Since the projection device is mostly applied to a large-sized image display, the above-mentioned mesh black area is often perceived by the user, causing an image. Deterioration of quality. In order to solve the above problem of image quality degradation, there are some conventional techniques (such as US 5,402,184). It is proposed that these conventional techniques are mainly for hunting the Gptieal engine towel or the project lens to quickly switch the projection position of the image on the screen, thereby reducing or reducing the mesh shape. Black area. However, the weight and volume of the cymbal itself is very large. If you want to vibrate, you must be quite complicated and occupy a considerable amount. Therefore, the vibration projection lens or the cymbal method The feasibility of the actual mass production is relatively low. Ρ成牡贝丨里5, doc/r [Invention] It is an object of the present invention to provide a mirror module for improving the image quality of a projection display device Another object of the present invention is to provide a mirror module that can quickly switch the projection position of an image on a screen by vibrating a mirror, thereby eliminating or reducing the occurrence of a mesh black area. Other objects 'The present invention provides a mirror module including a positioning base, an actuator, a support shaft, a spring piece, a mirror base and a mirror. Among them, the actuator and the support The support shaft and the elastic piece are disposed on the positioning base, and the mirror base is connected to the elastic piece. In addition, the elastic piece supports the mirror base to support the mirror base on the support shaft, and is actuated The mirror base is driven to repetitively vibrate with the support shaft as a fulcrum. The mirror is disposed on the mirror base. The mirror module can be applied to the projection device to reduce the visibility of the pixel. In an embodiment of the invention, the actuator may be a voice coil motor, a stepper motor or a piezoelectric tube. The support shaft may be a pivot or a bearing. The spring has, for example, an opening and a mirror. The base is supported by the opening on the support shaft. The mirror module further includes a mirror fixing component for fixing the relative position of the mirror and the mirror base, and the mirror fixing component can be adhesively fixed.疋 frame or a combination of these components. In addition, the fixed frame is fixed to the mirror base by, for example, locking, snapping or adhesive. The reflection ^: the module further includes a fixing member disposed between the reflection target mirrors. The mirror module further includes a support shaft adjustment mechanism disposed on the positioning base to adjust the position of the cutting axis. The mirror module further includes a 6 doc/r damping body disposed between the mirror base and the positioning base. The mirror module ^ includes a positioning base adjustment mechanism disposed on the positioning base. It is worth noting that the positioning base has, for example, a plurality of screw holes, and the positioning base adjustment mechanism is a female screw and a plurality of adjusting screws. The positioning base can be precisely fixed to other components (such as a projection lens) by adjusting the insect wire and fixing screws to the screw holes. The mirror module further includes a sensor disposed on the positioning base to sense the position of the mirror. The mirror module further includes a driving circuit disposed on the positioning base, and the driving circuit is electrically connected to the actuation. In addition, the above-mentioned elastic piece may be an arched elastic piece. The mirror module can be applied to an L-shaped projection lens. Based on the above, the present invention utilizes a combination of an actuator, a shrapnel, and a fulcrum shaft to vibrate the reliance. For example, Judah can provide a very downtime, and the practical production is highly feasible. The above and other objects, features, and advantages of the present invention will become more apparent from the understanding of the appended claims appended claims [Embodiment] Referring to FIG. 1 in May, the mirror module 1A includes a positioning base 110, an actuator 120, a support vehicle 13 〇, a spring 14 〇, a mirror base 15 〇, and a reflection. Mirror 160. The actuator 12A, the support shaft 13A and the elastic piece 1 are respectively disposed on the positioning base 110. The elastic piece M can be, for example, an arched elastic piece, and its both ends are fixed to the positioning base 110. Further, the mirror base 150 is coupled to the elastic piece H〇, and the image forming mirror 160 is disposed on the mirror base 150. In the present embodiment, the elastic piece 14 is used to oscillate the mirror base 150 so that the mirror base 15G vibrates with the support shaft 13 〇 as the branch 2. It is worth noting that the shrapnel can provide an upwardly pushing thrust onto the mirror base 15〇, and the upwardly pushed thrust can be used to support the mirror base 15〇, so that the mirror base 15〇 can be % It is supported by the support shaft 13〇. Further, during the period in which the mirror base 15 () is rapidly vibrated by the actuator 120, the external force urged by the elastic piece 14 可以 can effectively maintain the stability of the vibration of the mirror base 15 . Specifically, the elastic piece 14 of the present embodiment has, for example, an opening 142, and the mirror base 150 can bear against the support shaft 130 through the opening 142. When the mirror base 150 is driven by the actuator (actuator) i2, the mirror base 150 and the mirror 16 thereon are repeatedly oscillated with the support shaft 13〇 as a fulcrum. As can be seen from the above, the positioning base 11A and the support shaft 13A are regarded as a fixed part, and the mirror base 150 which can be driven by the actuator 12A is regarded as a moving part. In the present embodiment, the actuator 120 is, for example, a voice coil motor (v〇ice c〇al m〇t〇r), a stepping motor (8)叩 motor, or a piezoeiectric ceramic, and the support shaft 13〇 For example, it can be a pivot or a bearing. In the present invention, any feasible fixing manner can be adopted between the mirror 160 and the mirror base 15A. The manner of fixing between the mirror 160 and the mirror base 150 will be exemplified below, but it is not intended to limit the present invention. The way to fix it. 2A and 2B, in order to enable the mirror 16A to be securely fixed to the mirror base 150, the mirror module 丨5〇 may further include a lD5oStwf.doc/r mirror fixing component 170 for The relative position of the fixed mirror 160 to the mirror base 150. 2A and 2B, the mirror fixing member 170 is, for example, a fixed outer frame. Of course, the mirror fixing member 17 can also be an adhesive or an adhesive can be used to fix the outer frame. Further, the solid frame is, for example, engaged with the mirror base 15A. Of course, the fixed frame can also be fixed to the mirror base 15A by locking or adhesive. The mirror module 10 further includes a fixing member 180 and a damping body 190. The fixing member 180 is, for example, a rubber gasket and disposed between the mirror fixing member 170 and the mirror 160 to effectively fix the reflection. The mirror 16 is attached to the mirror base 150. The damper body 190 is disposed between the mirror base 15A and the positioning base 110 to reduce the influence of vibration. It is to be noted that the solid member 180 and the damping body 19 should be selectively disposed in appropriate positions depending on design requirements. The mirror module 10 can further include a support shaft adjustment mechanism coupled to the clamp base 110 for adjusting the position of the support shaft 13 on the positioning substrate. Specifically, the support shaft adjustment mechanism 200 may be one or more adjustment screws 2GGa, and these adjustment screws·a are locked to the positioning base 110 below the support shaft 130. When the relative position of the support shaft 13〇 and the positioning base ι ♦ is deviated and needs to be adjusted, the support shaft 130 and the positioning base 110 can be adjusted by adjusting the screw piece (supporting the money). The relative position of the mirror axis 1 and the positioning base 110 directly affects the position and the angle of the mirror 160. If the mirror module 1G has the axis 9 l2^m f When the mechanism 200 is adjusted, the position of the mirror 160 and the placement angle may be adjusted, thereby reducing the influence of the assembly error. The mirror module 10 of the embodiment may further include a positioning base. The positioning adjustment mechanism 210 is disposed on the positioning base 11 以 so that the mirror module can be accurately mounted on an appropriate position on other components such as the projection lens. Specifically, the positioning base adjustment mechanism 210 can be more a fixing screw 21〇a and a plurality of adjusting screws 210b, and the positioning base 11 has a plurality of corresponding screw holes 210c and 210d, when the mirror module 1 is assembled to other components (such as a projection lens) , we can use fixing screws 2i〇a, adjusting screw 210b and screw holes 210c and 210d, the positioning base 110 of the mirror module 1〇 is locked on other components (such as a projection lens). It is worth noting that the reflection of this embodiment The mirror module 1 can further include a sensor 220 (shown in FIG. 2A) disposed on the positioning base 110 to sense the position of the mirror 160. In addition, the mirror module 1 of the embodiment The driver circuit 230 can be further electrically connected to the actuator 12 to control the actuator 120 according to a desired mode. A side view of a l-type projection lens having a mirror module. Referring to FIG. 3, the L-type projection lens 20 of the present embodiment is composed of a plurality of lenses 22 and the above-mentioned mirror module. The lens group 22a and the lens group 22b can be divided into. In the projection dispersion, the image processed by the optical engine passes through the lens group 22a and is reflected by the mirror module 10, and then projected onto the screen through the lens group 22b. In the above-described L-type projection lens 20, due to the mirror Group 1〇 can quickly 127観f.doc/r to switch the image projection to the position on the screen, thereby eliminating or reducing the occurrence of the mesh black area, so the mirror module of the mirror module 10 can project the image. In view of the above, the mirror module of the present invention has at least the following advantages: 1. The elastic piece in the mirror module can stably vibrate the mirror under the driving of the actuator. The damping body in the mirror module can effectively reduce the amount of noise during operation, and can effectively avoid the sliding of the mirror. 3. The support shaft adjusting mechanism in the mirror module can make the position and the angle of the mirror have been The possibility of tuning, thereby reducing the impact of assembly errors. The positioning base adjustment mechanism in the mirror module allows the mirror module to be mounted accurately on the position of other components such as the projection lens. Although the present invention has been disclosed in the above preferred embodiments, it is not intended to limit the invention, and it is intended that the invention may be modified and modified without departing from the spirit and scope of the invention. The protection of the invention is defined by the scope of the patent application. BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a cross-sectional view showing a mirror module in accordance with a preferred embodiment of the present invention. 2A and 2B are respectively a green schematic view and an exploded perspective view of the mirror module of Fig. 1. 11 doc/r 1273⁄43⁄4. Figure 3 is a side elevational view of an L-shaped projection lens with a mirror module. [Main component symbol description] 10: Mirror module 20: L-type projection lens 22: Lens 22a, 22b: Lens group 110: Positioning pedestal 120: Actuator 130: Support shaft 140: Spring 142 · Opening 150: Mirror base 160: mirror 170: mirror fixing member 180··fixing member 190: damper body 200: support shaft adjusting mechanism 200a: adjusting screw 210: positioning base adjusting mechanism 210a: fixing screw 210b: adjusting screw 210c, 210d: screw hole 220: sensor 230 ·• drive circuit 12