200912505 PT1069 25466twf.doc/n 九、發明說明： 【發明所屬之技術領域】 本發明是有關於一種投影鏡頭模組（proj ection lens module)與光學投影裝置（0pticai project〇r)，且特別是 有關於一種具有間隔件（spacing element)的投影鏡頭模 組與應用此投影鏡頭模組的光學投影裝置。 【先前技術】 圖1繪示習知之一種投影鏡頭模組的立體分解示意 圖’圖2繪示圖1之投影鏡頭模組組合後的立體剖視示意 圖。請參考圖1與圖2，習知之投影鏡頭模組1〇〇包括一 投影鏡頭（projection lens) 110、一 變焦環（zoom ring) 120、一聚焦内環（focus inside ring) 130與一聚焦外環 (focus outside ring) 140。投影鏡頭模組1〇〇接合於一殼 體（未繪示）所具有之一支撐件（holder) 150。投影鏡頭 110 具有一鏡筒（barrel) 112、一第一驅動環（driving ring ) 114與一第二驅動環116。第一驅動環114與第二驅動環 116 分別環設於（encirclingly disposed about)鏡筒 112 上。 當第一驅動環114轉動時’第二驅動環116與部分鏡筒112 沿著鏡筒112之一軸線A1移動，並且當第二驅動環116 轉動時，第二驅動環116帶動另一部分鏡筒112轉動且此 另一部分鏡筒112沿著軸線A1移動。 變焦環120環繞投影鏡頭110且具有一第一環體（ring body) 122、一第二環體124與一第三環體126。第二環體 200912505 PT1069 25466twf.doc/n l24連接第一環體122與第三環體126，且第一環體122 固定於第一驅動環114。聚焦内環130環繞投影鏡頭11〇 且具有一第四環體132、一第五環體134與一第六環體 136。第五環體134連接第四環體132與第六環體136,並 且第四環體132固定於第二驅動環Π6且穿設於支樓件 15〇之一開孔152。聚焦内環130之第五環體134與第六環 體136鄰近於變焦環120之第二環體124,且聚焦内環130 之第六環體136具有多個導引槽136a。 聚焦外環140環繞聚焦内環130且位於支撐件150與 變焦環120之間。聚焦外環丨4〇包括一第七環體142、一 第八環體144與一第九環體146。第七環體142鄰近於支 撐件150，且第八環體144連接第七環體142與第九環體 146。第九環體146具有多個導引凸塊14如，且各個導引 凸塊146a對應地滑設於這些導引槽13如的其中之一。 产J = 2動變焦環120時’聚焦外環⑽與聚焦内 ί 且聚焦内環13G沿著軸線A1移動。去 2 焦外環140時，聚焦内環130轉動且相對： 移動。經由上述可知，當使 變之第九環體146與 音。當使用4動 環體H6與變焦環120之第體’ t、、m〇之第九 之第七環_與切件W外環140 聲音。為了改善上述缺點，設計者必 200912505 PT1069 25466twf.doc/n 弟九環體⑽與變焦環120之第三環體⑶ 一間隙G1力口大，且將聚焦外環14〇的第體隹，1 禮件150戶斤維持的-第二間隙G2加大。缺而力:與支 ^隙⑴與第二間隙⑺將導致聚焦外環_ 動，使得使用者轉動聚焦外環M〇時的手感不佳搖晃與鬆 【發明内容】 裝置本二Γ:雜賴” ί學投影 使用者轉_整構件時仍能維持較佳Γϊΐ时音較小且 術特步目的的；;優點可以從本發明所揭露的技 為=述之-或部份或全部目的或是其他目的 —月^^施例提供-種投影鏡頭模組，適用於一具有—第 t殼體（Casing)。投影鏡頭模組包括 鏡SI頭二變焦；、—聚焦内環與-聚焦外環。投影 驅動产成结!^冋 弟一驅動環與一第二驅動環，且第一 梦通—驅動環分別環設於鏡筒上。變焦環環繞投影 第，環體、—第二環體與-第三環體。第二 動产 環體與第二環體，且第一環體固定於第一驅 環ί i㈣環環繞投影鏡頭且具L環體與一第五 環卜ί四環體連接第五環體且固定於第二驅動環。第四 體且與第一開孔配合，並且第五環體鄰近於第二環 股且具有多個第二開孔。 200912505 PT1069 25466twf.doc/n 聚焦外環環繞聚焦内環且位於殼體與變焦環之間。聚 焦外環包括一第六環體、一第七環體、多個第一間隔件與 多個第二間隔件。第六環體鄰近於殼體，且第七環體連接 第六環體。這些第一間隔件配置於第六環體的一第一表面 上且分別穿過這些第二開孔。各個第一間隔件之遠離第一 表面的一第一端部接觸第二環體，且第七環體與變焦環維 持一第一間隙。這些第二間隔件配置於第六環體之相對於 第一表面的一第二表面上。各個第二間隔件之遠離第二表 面的一第二端部接觸殼體，且第七環體與殼體維持一第二 間隙。 在本發明之一實施例中，上述各個第一端部可具有一 第一突起（protrusion)，其接觸第二環體。 在本發明之一實施例中，上述各個第一端部可具有一 第一突起與一第一增滑層，各個第一增滑層配置於對應之 第一突起上且接觸第二環體。另外，各個第一端部更可具 有一第一凹槽（groove)，其環繞對應之第一突起。再者， 這些第一增滑層的材質可為聚四氟乙烯、聚曱醛或尼龍。 在本發明之一實施例中，上述各個第二端部可具有一 第二突起，其接觸殼體。 在本發明之一實施例中，上述各個第二端部可具有一 第二突起與一第二增滑層，各個第二增滑層配置於對應之 第二突起上且接觸殼體。另外，各個第二端部更可具有一 第二凹槽，其環繞對應之第二突起。再者，這些第二增滑 層的材質可為聚四氟乙烯、聚甲醛或尼龍。 200912505 PT1069 25466twf.doc/n 在本發明之一實施例中，上述第一間隙可介於 釐與1.2公釐之間 在本發明之一實施例中，上述第二間隙可介於08公 釐與1.2公釐之間。 在本發明之一實施例中，上述殼體更包括一支撐件。 支樓件具有一第二開孔，其實質上與第一開孔相配合，且 第四環體穿設於第三開孔。各個第二端部接觸支撐件，且 〇 第七環體與支撐件維持上述第二間隙。 本發明之一實施例提供一種光學投影裝置，包括一殼 體、-照明系統（illuminant system)、一光閥（lighi vaWe) 與上述投影鏡頭模組。照明系統配置於殼體内且適於發出 二照明光束。光f拉置於殼_且位於照明光束的傳遞路 閥適於將照明光束轉換為—影像光束。投影鏡頭 二皇：t殼體’且投影鏡頭模組之投影鏡頭位於影像光 =:路徑上且適於將影像光束經由第一開孔而投= 心if上述’聚焦外環之各個第-間隔件的第—端邱接 ΞίΓΐ聚焦外環之第七環體與變焦環 離。因此，當使用者轉動變 于疋的距 —端部與變焦環彼此摩擦而聲立間隔件的第 之第七環體與殼體维端部接觸殼體’且聚焦外環 聚焦外環時，各:心=二此’當使用者轉動 擦而發出的聲音較小:的弟Μ部與變焦環彼此摩 j且各個第二間隔件的第二端部與= 10 200912505 PT1069 25466twf.doc/n 體彼此摩擦而發出的聲音較小。 為讓本發明之上述特徵和優點能更明顯易懂，下文特。 。 。 。 。 。 。 。 。 A projection lens module having a spacing element and an optical projection device using the projection lens module. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective exploded view of a conventional projection lens module. FIG. 2 is a perspective cross-sectional view showing the combination of the projection lens module of FIG. Referring to FIG. 1 and FIG. 2, the conventional projection lens module 1 includes a projection lens 110, a zoom ring 120, a focus inside ring 130, and a focus outside. Focus outside ring 140. The projection lens module 1 is coupled to a holder 150 having a housing (not shown). The projection lens 110 has a barrel 112, a first driving ring 114 and a second driving ring 116. The first drive ring 114 and the second drive ring 116 are respectively encirclingly disposed on the lens barrel 112. When the first drive ring 114 rotates, the second drive ring 116 and the partial lens barrel 112 move along one axis A1 of the lens barrel 112, and when the second drive ring 116 rotates, the second drive ring 116 drives the other part of the lens barrel 112 rotates and this other portion of the lens barrel 112 moves along the axis A1. The zoom ring 120 surrounds the projection lens 110 and has a first ring body 122, a second ring body 124 and a third ring body 126. The second ring body 200912505 PT1069 25466twf.doc/n l24 connects the first ring body 122 and the third ring body 126, and the first ring body 122 is fixed to the first driving ring 114. The focus inner ring 130 surrounds the projection lens 11 且 and has a fourth ring body 132, a fifth ring body 134 and a sixth ring body 136. The fifth ring body 134 is connected to the fourth ring body 132 and the sixth ring body 136, and the fourth ring body 132 is fixed to the second driving ring Π6 and is disposed through an opening 152 of the branch member 15〇. The fifth ring body 134 and the sixth ring body 136 of the inner ring 130 are adjacent to the second ring body 124 of the zoom ring 120, and the sixth ring body 136 of the focus inner ring 130 has a plurality of guiding grooves 136a. The focus outer ring 140 surrounds the focus inner ring 130 and is located between the support 150 and the zoom ring 120. The focus outer ring 〇4〇 includes a seventh ring body 142, an eighth ring body 144 and a ninth ring body 146. The seventh ring body 142 is adjacent to the support member 150, and the eighth ring body 144 is coupled to the seventh ring body 142 and the ninth ring body 146. The ninth ring body 146 has a plurality of guiding protrusions 14, for example, and each of the guiding protrusions 146a is correspondingly slidably disposed in one of the guiding grooves 13. When J = 2 moves the zoom ring 120, the focus outer ring (10) and the focus ί are moved and the focus inner ring 13G moves along the axis A1. When the 2 focus outer ring 140 is removed, the focus inner ring 130 rotates and opposes: moves. From the above, it can be seen that the ninth ring body 146 is changed to the sound. When the fourth moving body H6 and the first ring of the zoom ring 120't, the ninth of the mth, and the outer ring 140 of the cutting member W are used. In order to improve the above shortcomings, the designer 200912505 PT1069 25466twf.doc/n the third ring body (10) and the third ring body (3) of the zoom ring 120 have a gap G1, and the first body of the outer ring 14〇 is focused, 1 The gift of 150 jin is maintained - the second gap G2 is increased. Lack of force: the gap between the support (1) and the second gap (7) will cause the focus of the outer ring to move, causing the user to turn the focus of the outer ring M〇 when the hand feels poorly shaken and loose [invention] device second: miscellaneous ί The projection user can still maintain a better Γϊΐ 音 且 且 且 且 ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; Other purposes—the moon ^^ example provides a projection lens module suitable for a Casing with a t-th casing. The projection lens module includes a lens SI first zoom; a focus inner ring and a focus outer ring The projection drive produces a knot! ^ A brother drive ring and a second drive ring, and the first dream pass-drive ring is respectively arranged on the lens barrel. The zoom ring surrounds the projection, the ring body, the second ring body And a third ring body. The second movable ring body and the second ring body, and the first ring body is fixed to the first drive ring ί i (four) ring surround projection lens and has a L ring body and a fifth ring The body is connected to the fifth ring body and fixed to the second driving ring. The fourth body is engaged with the first opening, and the fifth ring body is adjacent to The second ring has a plurality of second openings. 200912505 PT1069 25466twf.doc/n The focus outer ring surrounds the inner ring and is located between the housing and the zoom ring. The focus outer ring includes a sixth ring and a seventh ring. a plurality of first spacers and a plurality of second spacers. The sixth ring body is adjacent to the housing, and the seventh ring body is connected to the sixth ring body. The first spacers are disposed on the sixth ring body. a second opening is formed on a surface and separately through the second openings. A first end of each of the first spacers away from the first surface contacts the second ring, and the seventh ring maintains a first gap with the zoom ring. The second spacer is disposed on a second surface of the sixth ring body opposite to the first surface. A second end of each of the second spacers away from the second surface contacts the housing, and the seventh ring body and the shell The body maintains a second gap. In one embodiment of the invention, each of the first ends may have a first protrusion that contacts the second ring. In one embodiment of the invention, each of the above The first end portion may have a first protrusion and a first sliding layer, each An additional sliding layer is disposed on the corresponding first protrusion and contacts the second ring body. In addition, each of the first end portions may further have a first groove surrounding the corresponding first protrusion. The material of the first sliding layer may be polytetrafluoroethylene, polyacetal or nylon. In an embodiment of the invention, each of the second ends may have a second protrusion that contacts the housing. In one embodiment, each of the second end portions may have a second protrusion and a second sliding layer, and each of the second sliding layers is disposed on the corresponding second protrusion and contacts the housing. The end portion may further have a second groove surrounding the corresponding second protrusion. Further, the materials of the second sliding layer may be made of polytetrafluoroethylene, polyoxymethylene or nylon. 200912505 PT1069 25466twf.doc/n In one embodiment of the invention, the first gap may be between PCT and 1.2 mm. In one embodiment of the invention, the second gap may be between 08 mm and 1.2 mm. In an embodiment of the invention, the housing further includes a support member. The branch member has a second opening substantially cooperating with the first opening, and the fourth ring is disposed through the third opening. Each of the second ends contacts the support and the seventh ring and the support maintain the second gap. An embodiment of the present invention provides an optical projection apparatus including a housing, an illuminant system, a light valve (lighi vaWe), and the above projection lens module. The illumination system is disposed within the housing and is adapted to emit two illumination beams. The light f is placed in the casing _ and the transmission path of the illumination beam is adapted to convert the illumination beam into an image beam. Projection lens two emperors: t housing 'and the projection lens of the projection lens module is located on the image light =: path and is suitable for the image beam to pass through the first opening = the heart if the above - the outer circumference of the focus outer ring The first end of the piece is connected to the third ring of the outer ring and the zoom ring. Therefore, when the user rotates and the distance between the end and the zoom ring rubs against each other and the seventh ring body of the acoustic spacer contacts the housing end and the outer ring focuses the outer ring, Each: heart = two this 'when the user turns the wipe to make a small sound: the sister's crotch and the zoom ring and the second end of each second spacer and = 10 200912505 PT1069 25466twf.doc / n The sound of the body rubbing against each other is small. In order to make the above features and advantages of the present invention more obvious, the following
舉一（或多個）實施例，並配合所附圖式，作詳細說明如 下。 D 【實施方式】 下列各實施例的說明是參考附加的圖式，用以例示本 〇 發明可用以實施之特定實施例。本發明所提到的方向用 例如「上」、「下」、「前」、「後」、「左」、「右」 等，僅是參考附加圖式的方向。因此，使用的方向用語是 用來說明，而非用來限制本發明。 請參考圖3，其繪示本發明一實施例之一種光學投影 裴置的剖面示意圖。本實施例之光學投影裝置2〇包括一殼 體22、一照明系統24、一光閥26與一投影鏡頭模組2〇〇。 殼體22具有一第一開孔22a，且照明系統24配置於殼體 22内且適於發出—照明光束L1。光閥26配置於殼體22 I 内且位於照明光束L1的傳遞路徑上。光閥26適於將照明 光束L1轉換為一影像光束L2。投影鏡頭模組200配置於 殼體22 ’且位於影像光束L2的傳遞路徑上。投影鏡頭模 組200適於將影像光束L2經由第一開孔22a而投影至— 螢幕S上。 圖4繪示圖3之投影鏡頭模組的立體分解示意圖，圖 5緣示圖4之投影鏡頭模組組合後的立體剖視示意圖，圖6 緣示圖4之投影鏡頭模組組合後的平面剖視示意圖。在此 11 200912505 PT1069 25466twf.doc/n 必須說明的是，為了方便說明起見，圖4繪示殼體。之一 支撐件250 (詳見下述），且圖6繚示部分殼體^。請參 考圖4、圖5與圖6,本實施例之投影鏡頭模組2〇〇包括二 ^影鏡頭210、一變焦環220、一聚焦内環23〇與—聚焦外 環240。投影鏡頭210具有一鏡筒212、—第一驅動環、^4 與一第二驅動環216。第一驅動環214與第二驅動環216 分別環設於鏡筒212上。在此必須說明的是，投影鏡頭21〇 〇 f包括多個鏡片，且鏡筒212例如由一前群鏡筒、—主鏡 筒與-後群鏡筒所組m但是在這㈣面巾皆省略繪The embodiment (or embodiments) will be described in detail with reference to the accompanying drawings. The following description of the embodiments is provided to illustrate specific embodiments in which the invention may be practiced. The directions mentioned in the present invention are, for example, "upper", "lower", "front", "back", "left", "right", etc., and only refer to the direction of the additional drawing. Therefore, the directional terminology used is for the purpose of illustration and not limitation. Please refer to FIG. 3, which is a cross-sectional view of an optical projection device according to an embodiment of the invention. The optical projection device 2 of the present embodiment includes a housing 22, an illumination system 24, a light valve 26 and a projection lens module 2''. The housing 22 has a first opening 22a and the illumination system 24 is disposed within the housing 22 and is adapted to emit an illumination beam L1. The light valve 26 is disposed in the housing 22 I and on the transmission path of the illumination light beam L1. The light valve 26 is adapted to convert the illumination beam L1 into an image beam L2. The projection lens module 200 is disposed on the housing 22' and located on the transmission path of the image beam L2. The projection lens module 200 is adapted to project the image beam L2 onto the screen S via the first opening 22a. 4 is a perspective exploded view of the projection lens module of FIG. 3, FIG. 5 is a perspective cross-sectional view of the projection lens module of FIG. 4, and FIG. 6 is a plan view of the combined projection lens module of FIG. A schematic cross-sectional view. Here, 11 200912505 PT1069 25466twf.doc/n It must be noted that, for convenience of explanation, FIG. 4 illustrates the housing. One of the supports 250 (see below), and Figure 6 shows a partial housing. Referring to FIG. 4, FIG. 5 and FIG. 6, the projection lens module 2 of the embodiment includes a second lens 210, a zoom ring 220, a focus inner ring 23A and a focus outer ring 240. The projection lens 210 has a lens barrel 212, a first driving ring, a fourth driving ring 216, and a second driving ring 216. The first driving ring 214 and the second driving ring 216 are respectively looped on the lens barrel 212. It should be noted that the projection lens 21〇〇f includes a plurality of lenses, and the lens barrel 212 is composed of, for example, a front group lens barrel, a main lens barrel and a rear group lens barrel, but is omitted in the (four) face towel. painted
TpC。 詳言之，投影鏡頭210位於影像光束L2 (見圖3)的 傳遞路徑上，且適於將影像光束L2經由殼體22的第一開 孔22a而投衫至螢幕s (見圖3 )上。此外，當第—驅動環 214轉動b寸’第二驅動環216與部分鏡筒212沿著鏡筒 之一軸線A2移動，並且當第二驅動環216轉動時，第二 『._環216帶動另—部分鏡筒212轉動且帶動此另一部分 I 鏡筒212沿著軸線A2移動。 婕焦％ 220環繞投影鏡頭21〇且具有一第一環體 222、—f二環體224與一第三環體226。第二環體224連 接第一環體222與第三環體226，且第一環體222固定於 第一驅動環214。在本實施例中，第三環體226實質上平 行鏡筒212之轴線八2。 聚焦内環230環繞投影鏡頭210且具有一第四環體 232與第五環體234。第五環體234鄰近於變焦環220 12 Ο Ο 200912505 PT1069 25466twf.doc/n 且具有多個第二開孔234a。第四環體232 ί接弟五壤體234且固定於第二驅_ 216。第四環體232 :貝上與，體22之第—開孔22a相配合。詳言之，在本實 施例中’咸體22更包括支撐件25G，支撐件25G具有-第 二開孔252 ’其實質上與第—開孔22&相配合 環體232穿設於第三開孔252。 弟四 也s K、、外袞240環繞聚焦内環230且位於殼體22與變 '、、、=220之間。聚焦外環24〇包括一第六環體祀、一第 ^環體244、多個第—間隔件施與多個第二間隔件248。 體鄰近於殼體22之支撐件25〇,且第七環體244 連接弟/、％體242。在本實施例中，第七環體24 平行鏡筒212之軸線Α2。 貝貝上 这些第一間隔件246配置於第六環體242的—第一表 面242a上且分別穿過這些第二開孔234&。各個 ί 5離第—表面2仏的一第—端部246a接觸變焦 =22〇之弟二環體224，且第七環體Μ4與變焦環22〇之 弟二環體226維持-第-間隙G3(例如介於〇 8公餐盘i 2 公釐之間）。這些第二間隔件248配置於 相對於第-表面242a的一第二表面242b上二:J ，件248之遠離第二表面242b的一第二端部鳩接觸支 樓件250。第七環體244與殼體22之支樓件25〇維持__第 二間隙G4(例如介於〇.8公釐與1.2公釐之間）。 以下對於本實施例之投影鏡頭模組2〇〇的作動過程作 說明。當使用者轉動變焦環時，聚焦外環240與聚焦 13TpC. In detail, the projection lens 210 is located on the transmission path of the image beam L2 (see FIG. 3), and is adapted to cast the image beam L2 to the screen s (see FIG. 3) via the first opening 22a of the housing 22. . In addition, when the first drive ring 214 rotates the b-inch 'second drive ring 216 and the partial lens barrel 212 moves along one axis A2 of the lens barrel, and when the second drive ring 216 rotates, the second "._ ring 216 drives In addition, part of the lens barrel 212 rotates and drives the other part I of the lens barrel 212 to move along the axis A2. The focus % 220 surrounds the projection lens 21 and has a first ring body 222, a -f ring body 224 and a third ring body 226. The second ring body 224 is connected to the first ring body 222 and the third ring body 226, and the first ring body 222 is fixed to the first driving ring 214. In the present embodiment, the third ring body 226 is substantially parallel to the axis 八 of the barrel 212. The focus inner ring 230 surrounds the projection lens 210 and has a fourth ring body 232 and a fifth ring body 234. The fifth ring body 234 is adjacent to the zoom ring 220 12 Ο Ο 200912505 PT1069 25466twf.doc/n and has a plurality of second openings 234a. The fourth ring body 232 is connected to the fifth body 234 and is fixed to the second drive 216. The fourth ring body 232 is matched with the first opening 22a of the body 22. In detail, in the present embodiment, the 'salm body 22 further includes a support member 25G, and the support member 25G has a second opening 252' which is substantially in communication with the first opening 22& Opening 252. The fourth is also s K, and the outer cymbal 240 surrounds the inner ring 230 and is located between the housing 22 and the variable ', , and =220. The focus outer ring 24A includes a sixth ring body 一, a second ring body 244, and a plurality of first spacer members are applied to the plurality of second spacer members 248. The body is adjacent to the support member 25 of the housing 22, and the seventh ring body 244 is connected to the body/body 242. In the present embodiment, the seventh ring body 24 is parallel to the axis Α2 of the barrel 212. The first spacers 246 are disposed on the first surface 242a of the sixth ring body 242 and pass through the second openings 234 & Each of the first end portions 246a of the first surface 2仏 is in contact with the zoom ring 22 of the second ring body 224, and the seventh ring body Μ4 and the second ring body 226 of the zoom ring 22 are maintained to maintain the first gap. G3 (for example, between 〇8 public plates i 2 mm). The second spacers 248 are disposed on a second surface 242b of the first surface 242a, and a second end portion of the member 248 away from the second surface 242b contacts the branch member 250. The seventh ring body 244 and the support member 25 of the housing 22 maintain a __ second gap G4 (e.g., between 〇8 mm and 1.2 mm). The operation of the projection lens module 2A of the present embodiment will be described below. When the user rotates the zoom ring, the outer ring 240 is focused and focused 13
200912505 PT1069 25466twf.d〇c/n 内環230並不轉動，且 ^ A2移動。當使用者轉動:二料鏡筒212之輛線 轉動且相對於聚隹外t G時’聚焦内環230 動。栌由卜、f πΓ、卜衣 著鏡筒212之轴線A2移 二 处。σ，當使用者轉動變焦環220時，由於各 2 ^件246❸第—端部2恤接觸變焦環220之第- 環…賴244與變焦環- 246 ίΛ - J 轉第—間隙G3，所以各個第-間隔件 6的弟-端部246a與變焦環22〇之第二環體224彼此摩 t而發出2聲音較小。同理，當使用者轉動聚焦外環24。 守各们苐間&件246的第一端部246a與變焦環220 之第二環體224彼此摩擦而發出的聲音較小，且各個第二 間隔件248的第二端部248a與殼體22之支撐件25〇彼此 摩擦而發出的聲音較小。 在本實施例中，各個第一間隔件246之第一端部24如 可具有一第一突起P1、一第一增滑層II與一第—凹槽 R1。各個第一增滑層n配置於對應之第一突起^上且接 觸變焦環220之第二環體224。這些第一增滑層n的材質 例如為聚四氟乙烯、聚甲醛（P0M)或尼龍（PA)。各個 苐一凹槽R1環繞對應之第一突起P1。由於各個第一增滑 層II的摩擦係數較低，所以當投影鏡頭模組2〇〇作動時， 各個第一間隔件246的第一端部246a與變焦環220之第二 環體224彼此摩擦而發出的聲音更小。此外，必須說明的 疋’由於各個第一增滑層II通常是藉由塗佈（c〇ating)的 方式形成於對應第一突起P1上，所以各個第一凹槽R1可 14 200912505 PT1069 25466twf. doc/n 丨々止對應的弟一增滑,a 取吋溢出 在本實施例中，上述各個第二間隔件248之 有-第二突起Ρ2、一第二增滑層12與一：：= R2。各個第二增滑層12配置於對應之第二突起的上且 „50。這些第二增滑層12的材質例如為聚四氟乙 烯、i甲搭或尼龍。各個第二凹槽R2環繞對應之 起P2。由於各個第二增滑層12的摩擦係數較低以冷 投影鏡頭模組2GG作料，各個第二間隔件24 二 部逃與殼體22之支撐件2s〇彼此摩擦而發出的聲更 外’必須說明的是，由於各個第二增滑 ‘ 猎由塗佈的方式形成於對應第二突起p2上 二凹^2；!防止對應的第二增滑層12在形成時溢Γ 需求，料树依照設計 略找件25〇的配置，使得各個第 的弟二端部248a接觸殼體22之 ^件248 Ο 情形並未以圖面矣會示。 内表面細。然而上述 、、-矛上所述，本發明之上述實施例的换寻彡户確> 學投影裝置至少具有以下的‘二—與光 環，：聚間隔件的第1部接觸變焦 t當使用者轉動變焦環時，各個第―間=離。因 環彼此摩擦而發出的聲音較小。：件 環體與殼體唯持的接觸设體，且聚焦外環之第七 轉1的距離。因此，當使用者轉動聚焦外 15 200912505 t^iivoy ^〇〇wfd〇c/n 環時，各個第一間隔件的第 ㈣聲音較小，且各個第二間隔;焦環彼此摩擦而發 殼體彼此摩擦而發出的聲音較々:。的弟二端部與支撐件或 二、由於聚焦外環之各_ 變焦環，所以聚焦外環 間隔件的第-端部接觸 o 维持之間隙可較小。與變焦環之第三環體所 -端部接觸殼體，所厂巧各個第二間隔件的第 之間隙可較小。因此，盘習知^第七％體與殼體所維持 施例的聚焦外環不易鼓目較，本發明之上述實 以提升且使__外環時操作精準度得 影鏡第::rr二 彼此摩擦而發出的聲隔件的第一端部與變焦環 影鏡頭模第骨層==較低’所以當投 此摩擦而發出的聲音更件的苐二端部與殼體彼 本二上’然其並非用_ 太L日 範圍内’當可作些許之更動與潤飾，因此 準。χ另^保魏圍當視後附之申請專利翻所界定者為 膝ΒΒ π j t發明的任一實施例或申請專利範圍不須達成本 ^B ，路之全部目的或優點或特點。此外，摘要部分和 輔助專利文件搜尋之用’並非用來限制本發 16 200912505 PT1069 25466twf.doc/n 【圖式簡單說明】 圖1繪示習知之一種投影鏡頭模組的立體分解示意 圖。 圖2繪示圖1之投影鏡頭模組組合後的立體剖視示意 圖。 圖3繪示本發明一實施例之一種光學投影裝置的剖面 示意圖。 圖4繪示圖3之投影鏡頭模組的立體分解示意圖。 圖5繪示圖4之投影鏡頭模組組合後的立體剖視示意 圖。 圖6繪示圖4之投影鏡頭模組組合後的平面剖視示意 圖。 【主要元件符號說明】 20 :光學投影裝置 22 :殼體 22a、152、234a、252 :開孔 22b :内表面 24 :照明系統 26 :光閥 100、200 :投影鏡頭模組 110、210 :投影鏡頭 112、212 :鏡筒 17 200912505200912505 PT1069 25466twf.d〇c/n Inner ring 230 does not rotate and ^ A2 moves. When the user rotates: the line of the two barrels 212 rotates and the focus inner ring 230 moves relative to the outside of the cluster. The axis A2 of the lens barrel 212 is shifted by two. σ, when the user rotates the zoom ring 220, since each 2 ^ piece 246 ❸ first end 2 shirt contacts the first ring of the zoom ring 220 赖 244 and the zoom ring - 246 Λ Λ - J turn the first gap G3, so each The second end portion 246a of the first spacer member 6 and the second ring body 224 of the zoom ring 22'''''''' Similarly, when the user turns the focus outer ring 24. The first end portion 246a of each of the turns 246 and the second ring 224 of the zoom ring 220 rub against each other to emit a small sound, and the second end portion 248a and the housing of each of the second spacers 248 The support members 25 of the 22 are rubbed against each other to make a small sound. In this embodiment, the first end portion 24 of each of the first spacers 246 may have a first protrusion P1, a first sliding layer II and a first groove R1. Each of the first sliding layers n is disposed on the corresponding first protrusion and contacts the second ring 224 of the zoom ring 220. The material of these first slip layer n is, for example, polytetrafluoroethylene, polyoxymethylene (POM) or nylon (PA). Each of the first grooves R1 surrounds the corresponding first protrusion P1. Since the friction coefficient of each of the first sliding layer II is low, when the projection lens module 2 is activated, the first end portion 246a of each of the first spacers 246 and the second ring body 224 of the zoom ring 220 rub against each other. The sound is smaller. In addition, it must be stated that since each of the first sliding layer II is formed on the corresponding first protrusion P1 by means of coating, each of the first grooves R1 may be 14 200912505 PT1069 25466twf. Doc/n 对应 对应 对应 对应 对应 , , , 对应 对应 对应 对应 对应 对应 对应 对应 对应 对应 对应 对应 对应 对应 对应 对应 对应 对应 对应 对应 对应 对应 对应 对应 对应 对应 对应 对应 对应 对应 对应 对应 对应 对应 doc doc doc doc doc R2. Each of the second sliding layers 12 is disposed on the corresponding second protrusions and is 50. The materials of the second sliding layers 12 are, for example, polytetrafluoroethylene, i-type or nylon. Starting from P2, since the friction coefficient of each of the second augmentation layers 12 is low, the cold projection lens module 2GG is used as a material, and the sound of the second spacers 24 and the support members 2s of the casing 22 are rubbed against each other. Further, it must be noted that since each of the second slicks is formed by coating, it is formed on the corresponding second protrusion p2; the corresponding second slidable layer 12 is prevented from overflowing during formation. According to the design, the material is arranged in a position of 25 ,, so that each of the second two ends 248a contacts the member 248 of the casing 22. The situation is not shown in the figure. The inner surface is thin. However, the above, - As described above, the above-described embodiment of the present invention has at least the following two-and-apertures: the first portion of the spacer is in contact with the zoom t when the user rotates the zoom ring. , each of the first - between = off. Because the rings rub against each other, the sound is small: The ring body and the housing are only in contact with the body, and the distance of the outer ring is adjusted to the seventh turn 1. Therefore, when the user rotates the focus 15 200912505 t^iivoy ^〇〇wfd〇c/n ring, each The fourth (fourth) sound of a spacer is small, and each second interval; the focal rings rub against each other and the shells rub against each other to produce a sound that is more ambiguous: the second end of the brother and the support member or the second, due to the focus of the outer ring Each _ zoom ring, so the contact of the first end of the focus outer ring spacer o can maintain a small gap. The third ring body of the zoom ring is in contact with the end of the housing, the second spacer of the factory The gap between the first and the second can be small. Therefore, the seventh outer body and the outer outer ring of the casing maintained by the casing are not easy to be drummed, and the above-mentioned embodiments of the present invention enhance the operation precision of the outer ring. The second end of the sound spacer that is rubbed by each other: the second end of the sound spacer that is rubbed against each other and the zoom ring shadow lens mold layer == lower' so that when the friction is emitted, the sound of the sound is further changed. The part and the shell are on the second side, 'though it is not used _ too L-day range' when it can make some changes and retouching, so χ χ ^ ^ 围 wei wei wei wei wei wei wei wei wei wei wei wei wei wei wei wei wei wei wei wei wei wei wei wei wei wei wei wei wei wei wei wei wei wei wei wei wei wei wei wei wei wei wei wei wei wei wei In addition, the summary part and the auxiliary patent file search use 'is not used to limit the present invention. 16 200912505 PT1069 25466twf.doc/n [Simplified Schematic Description] FIG. 1 is a perspective exploded view of a conventional projection lens module. 1 is a schematic cross-sectional view of the projection lens module of FIG. 1. FIG. 3 is a schematic cross-sectional view of an optical projection device according to an embodiment of the invention. . FIG. 5 is a perspective, cross-sectional view showing the combination of the projection lens modules of FIG. 4. FIG. 6 is a schematic cross-sectional view showing the combination of the projection lens modules of FIG. 4. [Main component symbol description] 20: Optical projection device 22: Housing 22a, 152, 234a, 252: Opening 22b: Inner surface 24: Illumination system 26: Light valve 100, 200: Projection lens module 110, 210: Projection Lens 112, 212: lens barrel 17 200912505
Fi luoy ^^4〇otwf.doc/n 114、116、214、216 :驅動環 120、220 :變焦環 122、124、126、132、134、136、142、144、146、 222、224、226、232、234、242、244 :環體 130、230 :聚焦内環 136a :導引槽 140、240 :聚焦外環 ^ 146a:導引凸塊 g \ } 150、250 :支撐件 242a、242b :表面 246、248 :間隔件 246a、248a :端部 A卜A2 :軸線 G 卜 G2、G3、G4 :間隙 L1 :照明光束 L2 :影像光束 Ο P卜P2 :突起 II、12 :增滑層 Rl、R2 :凹槽 S :螢幕 18Fi luoy ^^4〇otwf.doc/n 114, 116, 214, 216: drive ring 120, 220: zoom ring 122, 124, 126, 132, 134, 136, 142, 144, 146, 222, 224, 226 , 232, 234, 242, 244: ring body 130, 230: focusing inner ring 136a: guiding groove 140, 240: focusing outer ring ^ 146a: guiding protrusion g \ } 150, 250: support members 242a, 242b: Surfaces 246, 248: spacers 246a, 248a: end A A2: axis G Bu G2, G3, G4: gap L1: illumination beam L2: image beam Ο P b P2: protrusions II, 12: slip layer Rl, R2: groove S: screen 18