200919070 九、發明說明： 【發明所屬之技術領域】 本發明涉及一種投影系統，尤其涉及一種用於投影系統 的投影機鏡頭組件。 【先前技術】 隨著科技的蓬勃發展，投影技術已日益成熟，投影機的 應用領域也變得愈來愈廣，例如應用於頻繁的會議講解、巡 迴展示和促銷活動等商業領域，及應用於學校授課、學術討 論等教育領域，以及應用於家庭影院等家庭領域。200919070 IX. Description of the Invention: The present invention relates to a projection system, and more particularly to a projector lens assembly for a projection system. [Prior Art] With the rapid development of technology, projection technology has become more and more mature, and the application fields of projectors have become more and more extensive, for example, in commercial fields such as frequent conference presentations, tour shows and promotions, and applications. Schools, academic discussions and other areas of education, as well as in the home field such as home theater.
一般地，投影機包括光源裝置，光調製裴置以及投影機 鏡頭組件等元件。其中，投影機鏡頭組件包括〜個鏡頭本體， 以及一個套設於鏡頭本體上的鏡頭環。通常鏡頭環上開設有 螺紋孔，而鏡頭本體上開設有對應的螺紋孔，螺釘依次穿過 鏡頭環上螺紋孔和鏡頭本體上螺紋孔而將鏡碩環套設於鏡頭 本體上另外冑些鏡頭環為斷開的圓環結構，在斷開處的 兩端均具有突出的卡緊部，每個卡緊部上綱設有螺咬孔， 鏡頭環圍繞在鏡縣體上後藉㈣釘分別 上 紋孔將鏡頭環鎖緊於鏡頭本體上。 卜μ上的螺 =連接方式不利於提升工人組裝投影機鏡二::: 【發明内容】 種谷易操作以提高組裝工序的 有鑒於此’有必要提供一 200919070 工作效率的投影機鏡頭組件。 一種投影機鏡頭組件，其包括至少一個鏡片組，一個具 有一個連接部的鏡頭本體，以及一個鏡頭環。所述鏡片組收 容至鏡頭本體内。所述鏡頭環套設於所述鏡頭本體的連接部 上。所述鏡頭本體的連接部外表面設有至少一個凸塊，所述 鏡頭環的内表面設有至少一個承靠台、至少一個導引槽、以 及至少一個與所述凸塊相配合的卡合部。所述各導引槽與對 應的承罪台接著，所述各卡合部位於對應的導引槽内。所述 對應的承罪台、導引槽、以及卡合部形成一個收容空間以收 谷對應的凸塊。所述對應的凸塊與所述對應的卡合部承接。 所述鏡頭本體與所述承靠台承接。 與先前技術相比，所述投影機鏡頭組件藉由承靠台、導 引槽、以及卡合部形成的收容空間將凸塊收容而使得鏡頭環 套设於鏡頭本體上，投影機鏡頭組件級裝變得容易，提高了 組裝工序的工作效率。 【實施方式】 下面將結合附圖’對本發明作進一步的詳細說明。 弟一貫施例 請參閱圖1及圖2，為本發明第一實施例的投影機鏡頭 組件100 ’其包括一個鏡頭本體1〇 ’至少一個鏡片組2〇，以 及一個鏡頭環30。所述至少一個鏡片組收容至鏡頭本體 10内’所述鏡頭環30套設於所述鏡頭本體上。本實施例 只列舉投影機鏡頭組件100包括一個鏡片組2〇的情形，當 然，為了能實現變焦，投影機鏡頭組件並不局限於本實施例 200919070 只有一個鏡片組， 通常採用複數鏡片組。 定二方向，所述鏡頭本體1〇依次具有-個固 接修物^ ΖΓΓ與所侧環料接的連 °卩12上具有兩翼122、124,所述兩翼122、 128將有通孔126、128,螺釘(圖未示）穿過通孔126、 又办、，兄碩組件100固定在外部安裝部（圖未示）上Generally, the projector includes components such as a light source device, a light modulation device, and a projector lens assembly. The projector lens assembly includes a lens body and a lens ring sleeved on the lens body. Usually, the lens ring is provided with a threaded hole, and the lens body is provided with a corresponding threaded hole. The screw sequentially passes through the threaded hole of the lens ring and the threaded hole of the lens body, and the mirror ring is sleeved on the lens body. The ring is a broken ring structure, and has protruding clamping portions at both ends of the disconnection, and each of the clamping portions is provided with a screw-biting hole, and the lens ring surrounds the mirror body body and then (four) nails respectively The upper hole locks the lens ring to the lens body. The screw on the board is not conducive to the improvement of the assembly of the projector lens. 2::: [Invention] The grain is easy to operate to improve the assembly process. In view of this, it is necessary to provide a projector lens assembly with 200919070 work efficiency. A projector lens assembly includes at least one lens group, a lens body having a connection portion, and a lens ring. The lens group is received into the lens body. The lens ring is sleeved on the connecting portion of the lens body. The outer surface of the connecting portion of the lens body is provided with at least one protrusion, and the inner surface of the lens ring is provided with at least one bearing platform, at least one guiding groove, and at least one engaging with the protruding block unit. The guiding grooves are corresponding to the corresponding contracting stations, and the engaging portions are located in the corresponding guiding grooves. The corresponding contracting table, the guiding groove, and the engaging portion form a receiving space to receive the corresponding bumps. The corresponding bumps are received by the corresponding engaging portions. The lens body is received by the bearing platform. Compared with the prior art, the projector lens assembly receives the bump by the receiving space formed by the bearing platform, the guiding groove and the engaging portion, so that the lens ring is sleeved on the lens body, and the projector lens assembly level The assembly becomes easy, and the work efficiency of the assembly process is improved. [Embodiment] Hereinafter, the present invention will be further described in detail with reference to the accompanying drawings. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to Figures 1 and 2, a projector lens assembly 100' according to a first embodiment of the present invention includes a lens body 1'', at least one lens group 2'', and a lens ring 30. The at least one lens group is received in the lens body 10. The lens ring 30 is sleeved on the lens body. This embodiment only cites the case where the projector lens assembly 100 includes a lens group 2 ,. Of course, in order to achieve zooming, the projector lens assembly is not limited to this embodiment. 200919070 There is only one lens group, and a plurality of lens groups are usually employed. In the second direction, the lens body 1 〇 has a fixed attachment ^ ΖΓΓ and the side ring material connected to the 卩 12 has two wings 122 , 124 , the two wings 122 , 128 will have a through hole 126 , 128, the screw (not shown) passes through the through hole 126, and the brother assembly 100 is fixed on the external mounting portion (not shown).
可固定投影機鏡頭組件1GG。所述連接部16具有—個沿光轴 00,方向延伸的圓周面162及—個與光軸〇〇,垂直的端面 164。所述圓周面162上設有六個凸塊166，所述每個凸塊⑽ 具有一個斜切面168,沿著投影機光路方向所述斜切面MS 逐漸接近所述光軸00,中心，其中，所述光軸〇〇,中心與鏡 頭環30中心一致。 所述鏡頭環30的内表面設有一個承靠台32、三個與所 述凸塊166相對應設置的導引槽34、以及三個與所述凸塊166 相配合的卡合部36。所述承罪台32為一個環繞於鏡頭環3〇 内表面的環狀結構，所述承靠台32相對於鏡頭環3〇内表面 朝向接近鏡頭瓖3〇中心方向突出。所述導引槽34與所述承 靠台32接著，所述導引槽34具有一個第一擋塊342及與所 述第一擔塊342相對δ又置的一個第一擋塊344 ,所述第一擋 塊342及第二擋塊344相對於所述鏡頭環30内表面朝向接近 鏡頭環30中心的方向突出。第一擋塊342與卡合部36沿鏡 頭環30圓周方向的最大距離小於各凸塊166沿鏡頭環30圓 周方向的最大長度。第二擋塊344與卡合部36沿鏡頭環30 圓周方向的最Λ距離小於各凸塊166沿鏡頭環30圓周方向的 8 200919070 最大長度。所述卡合部36位於所述導引槽34內 & t入 n，所述卡合 部具有一個斜切面362,沿著投影機光路方所述斜切面362 逐漸接近所述鏡頭環30的中心。所述承靠台32、道 、 匕人 a ♦ 3丨槽34、 以及卡δ部36形成一個收容空間38以收容凸塊166。 可以理解，所述凸塊166的數量並不局限於本實施例中 的六個，可以為任意個數，只要凸塊166能在引槽34内與卡 合部36相配合將鏡頭環3〇套設於鏡頭本體1〇的連接部'16 上即可。導引槽34與卡合部36的數量也不局限於本實施例 中的三個，只要導引槽34與卡合部36的數量相對應即可。 所述承靠台32的數量也並局限於本實施例中的一個，可以為 任思個數’只要保證能與每個導引槽34接著即可。 請參閱圖2及圖3，當鏡頭環3〇套設於鏡頭本體1〇的 連接部16時，凸塊166位於收容空間38内，凸塊166與卡 合部36承接，所述端面164與承靠台32承接。第一擋塊342 及第二擋塊344限制住凸塊166相對於鏡頭環30沿圓周方向 的位移，承靠台32及卡合部36限制住凸塊166相對於鏡頭 環30沿光軸◦〇’方向的位移。因此鏡頭環3〇旋轉時，凸塊 166相對於所述本體部14隨著鏡頭環3〇的旋轉而旋轉，凸 塊166帶動所述連接部16旋轉從而實現投影機鏡頭組件1〇〇 的調節功能。 第二實施例 請參閱圖4’為本發明第二實施例的投影機鏡頭組件 200’本實施例與第一實施例的不同之處在於：導引槽34，、卡 合部36及凸塊166的數量均為三個。所述導引槽34,為一個 9 200919070The projector lens assembly 1GG can be fixed. The connecting portion 16 has a circumferential surface 162 extending in the direction of the optical axis 00 and an end surface 164 perpendicular to the optical axis. The circumferential surface 162 is provided with six bumps 166, each of the bumps (10) has a chamfered surface 168, and the chamfered surface MS gradually approaches the optical axis 00 along the optical path of the projector, the center thereof, wherein The optical axis 〇〇 has a center that coincides with the center of the lens ring 30. The inner surface of the lens ring 30 is provided with a bearing table 32, three guiding grooves 34 corresponding to the protrusions 166, and three engaging portions 36 which cooperate with the protrusions 166. The scepter 32 is an annular structure surrounding the inner surface of the lens ring 3's, and the abutment 32 projects toward the center of the lens 〇3〇 with respect to the inner surface of the lens ring 3〇. The guiding groove 34 is followed by the bearing table 32. The guiding groove 34 has a first stopping block 342 and a first stopping block 344 opposite to the first supporting block 342. The first stopper 342 and the second stopper 344 protrude in a direction approaching the center of the lens ring 30 with respect to the inner surface of the lens ring 30. The maximum distance between the first stopper 342 and the engaging portion 36 in the circumferential direction of the lens ring 30 is smaller than the maximum length of each of the projections 166 in the circumferential direction of the lens ring 30. The maximum distance between the second stopper 344 and the engaging portion 36 in the circumferential direction of the lens ring 30 is smaller than the maximum length of each of the projections 166 in the circumferential direction of the lens ring 30 of 2009 20097070. The engaging portion 36 is located in the guiding groove 34 & t into n, and the engaging portion has a chamfered surface 362 which gradually approaches the lens ring 30 along the chamfered surface 362 of the projector optical path. center. The abutment table 32, the track, the acupuncture a ♦ 3 groove 34, and the card δ portion 36 form a receiving space 38 for receiving the bump 166. It can be understood that the number of the bumps 166 is not limited to six in the embodiment, and may be any number, as long as the bumps 166 can cooperate with the engaging portions 36 in the guiding grooves 34 to connect the lens ring 3 It can be placed on the connecting portion '16 of the lens body 1〇. The number of the guide grooves 34 and the engaging portions 36 is not limited to three in the embodiment, as long as the guide grooves 34 correspond to the number of the engaging portions 36. The number of the abutments 32 is also limited to one of the embodiments, and may be any number as long as it can be ensured with each of the guide grooves 34. Referring to FIG. 2 and FIG. 3 , when the lens ring 3 is sleeved on the connecting portion 16 of the lens body 1 , the protrusion 166 is located in the receiving space 38 , and the protrusion 166 is received by the engaging portion 36 , and the end surface 164 is The bearing platform 32 is accepted. The first stopper 342 and the second stopper 344 restrict the displacement of the projection 166 relative to the lens ring 30 in the circumferential direction, and the bearing base 32 and the engaging portion 36 limit the projection 166 along the optical axis with respect to the lens ring 30. 〇 'Direction of the displacement. Therefore, when the lens ring 3 is rotated, the protrusion 166 rotates relative to the body portion 14 along with the rotation of the lens ring 3〇, and the protrusion 166 rotates the connecting portion 16 to realize adjustment of the projector lens assembly 1〇〇. Features. Second Embodiment Referring to FIG. 4, a projector lens assembly 200' according to a second embodiment of the present invention is different from the first embodiment in that: the guiding groove 34, the engaging portion 36 and the bump The number of 166 is three. The guiding slot 34 is a 9 200919070
凹槽，所述導引槽34’具有一個第一侧邊342，、一個與所述第 一側邊342’相對設置的第二側邊344,及一個失設於所述第一 侧邊342’與第二侧邊344’之間的底面346。所述底面346相 對於所述鏡頭環30内表面朝向遠離鏡頭環3〇的中心方向凹 下。所述第一側邊342’與所述卡合部36沿鏡頭環3〇圓周方 向的最大距離小於所述凸塊166沿鏡頭環3〇圓周方向的最大 長度，所述卡合部36與所述第二侧邊344,沿鏡頭環3〇圓周 方向的最大距離小於所述凸塊166沿鏡頭環3〇圓周方甸的最 大長度。當鏡頭環30套設於鏡頭本體1〇的連接部16時，由 第-侧邊342’及第二側邊344’限制住凸塊166相對於鏡頭環 30沿圓周方向的位移。所述承靠台32，相對於底面如朝向 接近鏡頭環30中心方向突出即可。 、當然’可以是鏡頭環内表面上設置凸塊，而在鏡頭本體 ^接部上設置相賴料⑽，卡合部及承接台，只要能 叮到此將鏡赠套設於麵本體上且能實現鏡頭調節功能即 形成機鏡頭組件藉由承靠台、導引槽、以及卡合部 ^，使得將凸塊收容岐得鏡頭環套設於鏡頭本體 工作:;Γ 頭組件組裝變得容易，提高了組裝工序^ 综上所述， 專利申請。惟， 凡熟悉本案技藝 飾或變化，皆應 本發明確已符合發料财件，t依法提出 乂上所述者僅為本發明之較佳實施方式，舉 於挺依本案發明精神所作之等效修 包含於以下之申請專利範圍内。 200919070 , 【圖式簡單說明】 圖1為本發明第一實施例投影機鏡頭組件的立體組裝 圖， 圖2為圖1中投影機鏡頭組件的立體分解圖； 圖3為圖1中沿著ΠΜΠ的截面示意圖； 圖4為本發明第二實施例投影機鏡頭組件的立體分解 圖。 【主要組件符號說明】 投影機鏡頭組件 100 鏡頭本體 10 鏡片組 20 鏡頭環 30 固定部 12 本體部 14 連接部 16 翼 122、124 通孔 126 、 128 圓周面 162 端面 164 凸塊 166 斜切面 168 > 362 承靠台 32 ' 32’ 導引槽 34 、 345 卡合部 36 第一擋塊 342 第二擋塊 344 收容空間 38 第一侧邊 342? 第二側邊 344’ 底面 346 11a groove, the guiding groove 34' has a first side 342, a second side 344 disposed opposite the first side 342', and a second side 342 missing from the first side 342 A bottom surface 346 between the second side 344'. The bottom surface 346 is recessed toward the center of the lens ring 30 toward the center away from the lens ring 3''. The maximum distance between the first side 342' and the engaging portion 36 in the circumferential direction of the lens ring 3 is smaller than the maximum length of the protrusion 166 along the circumferential direction of the lens ring 3, and the engaging portion 36 and the The second side 344 has a maximum distance along the circumferential direction of the lens ring 3 that is smaller than the maximum length of the protrusion 166 along the circumference of the lens ring 3. When the lens ring 30 is sleeved on the connecting portion 16 of the lens body 1 ,, the displacement of the bump 166 with respect to the lens ring 30 in the circumferential direction is restricted by the first side 342' and the second side 344'. The abutment base 32 may protrude toward the center of the lens ring 30 with respect to the bottom surface. Of course, 'the bump may be provided on the inner surface of the lens ring, and the corresponding material (10), the engaging portion and the receiving platform may be arranged on the lens body connecting portion, as long as the mirror can be set on the surface body and The lens adjustment function can be realized, that is, the lens assembly is formed by the bearing platform, the guiding groove, and the engaging portion, so that the lens is received and the lens ring is sleeved on the lens body: the assembly of the head assembly is easy , improved assembly process ^ In summary, patent application. However, if you are familiar with the craftsmanship or changes of this case, the invention should have been consistent with the payment of the financial materials, and the above is only a preferred embodiment of the present invention, which is based on the spirit of the invention. The effects are included in the following patent application. 1 is a perspective view of a projector lens assembly according to a first embodiment of the present invention, and FIG. 2 is an exploded perspective view of the projector lens assembly of FIG. 1. FIG. 4 is a perspective exploded view of a projector lens assembly according to a second embodiment of the present invention. [Main component symbol description] Projector lens assembly 100 Lens body 10 Lens group 20 Lens ring 30 Fixing portion 12 Body portion 14 Connecting portion 16 Wings 122, 124 Through holes 126, 128 Circumferential surface 162 End surface 164 Bump 166 Oblique cut surface 168 > 362 bearing table 32 '32' guiding groove 34, 345 engaging portion 36 first blocking block 342 second blocking block 344 receiving space 38 first side 342? second side 344' bottom surface 346 11