M332198 八、新型說明： 【新型所屬之技術領域】 本碧i作屬於望遠鏡的組成部件技術領域，具體涉及一 種用於牛頓式反射望遠鏡的可伸縮鏡筒。 【先前技術】 土反射式主遠鏡是天文望遠鏡的三大類型之一，反射望 ^、兄疋利用透鏡及反射鏡來聚光成像，光通過主聚光反射 反射到小的第二反射鏡後，再反射到目鏡，這樣即可 用目鏡觀察待測目標。牛頓式反射望遠鏡是目前較為常為 的天文觀測望遠鏡，它利用一凹入的拋物面或球面反射鏡 將進入鏡頭的光線匯聚後，反射到位於鏡筒前端的一平面 反射鏡上，然後再由平面鏡將光線反射到鏡筒外的目鏡裡 、，這樣便可以觀測目標。由於該反射望遠鏡使關反射鏡 造價要比透鏡低很多，並且構造簡單，非f適合觀測那些 暗弱的銀河外星系、星雲等，有些時候用這種望遠鏡觀測 月免或行星也报適合。且牛頓式反射望遠鏡，特別適用簡 易托架支撐的道布森（DGbsGnians)望遠鏡為天文觀測 普遍接受。 如第一圖所示，現有的牛頓式反射望遠鏡的鏡身主要 由鏡筒2、物鏡4、反射鏡3及目鏡}組成，鏡筒内的底 端設有鍍上反射物質的球面或拋物面玻璃狀物鏡，其作用 是把進入鏡筒的平行光反射聚焦於一黑占，然I靠鏡筒上端 固疋在该焦點前的反射鏡，反射鏡為一小的光學平面於 把物鏡的反射光成90。角反射鏡筒邊緣的目鏡中，、隹二w 彳丁 M332198 像放大’獲得普通望遠鏡的觀察效果。鏡筒是光 部件的支撐物，特別是要支撐重量較大的物鏡及物鏡；裝 座，因此必須有足夠的強度，常採用強度高且變形度 的金屬或者塑料製成。而鏡筒的内徑一般比物鏡的直稗大 2〜3麵，以方便物鏡的安裳及調節。鏡筒的長度一般至少 =鏡的焦距，如果太短，則主鏡焦點伸出鏡筒的距離 太長’除非副鏡尺寸足夠，否則當用廣角目鏡觀測時，視 場邊緣肯定會有光線損失。與折射鏡筒相比，該牛頓式反 射鏡的鏡筒長度只有物鏡直徑的八倍左右，可比折射鏡筒 約短兩倍，但對於較大物鏡直徑的反射鏡而言，其鏡筒的 長度仍然過大。望遠鏡口徑越大，集光力越強，可以看見 待，物體的數目也較多，同時物鏡的直徑越大，分辨率也 。所以要要增加集光力就只有增加望遠鏡的口徑，同 時也必須增加望遠鏡的鏡筒長度’現有的中等規格的牛頓 2射望遠鏡的鏡筒長度甚至可以達到1.G〜2.Gm，在加上 安裝鏡紙所需的支架’重量及體積都有較大幅的增加，因 =對地增大了觀測者的搬運難度與存放空間。當觀測者 攜帶該望遠鏡到較佳的觀測地點過程中，一般的車輛空間 ’、、、法滿足攜帶條件’同時鏡筒的較大重量也會影響搬運工 作。 士有鑑於此，本創作人係為改善並解決上述之缺失，乃 =潛心研究並配合學理之運用，終於提出—種設計合理且 有效改善上述缺失之本創作。 【新型内容】 M332198 本創作之主要目的，在於可提供_種結構合理旦 良、、与減輕且鏡筒長度可伸縮，並且摔作Θ便μ 里 後遇式反射望遠鏡在提高集光力及分辨率 傻遇至I的鏡同過長、重量過重等缺失， =能夠同時滿足高集光力、分辨率的同時，進 f貝與減輕重殘’以符合便於搬運及存放之需农。夕月丑 ，包之目的，本創作係提供-種可伸縮鏡筒 置二tit :一下段鏡筒，與該上段鏡筒同軸線設 線平該上、下段鏡筒間，並與鏡筒軸 :咖心:下段鏡筒間能沿著鏡筒軸線方向於 二專連杯上作伸縮滑動，藉以達到可伸縮鏡筒之主要目的 —具體而言’所述上段鏡筒上固定連桿之—端 m共連桿穿過的滑套’所述連桿之另-端穿設二 套内亚可在滑套内沿鏡筒軸線方向滑動。 所述滑套上設有一鎖定機構，該鎖定機構為穿設於滑 套上開設的螺孔内並與螺孔配合連接的螺栓件，螺检件的 一端推頂滑套内的連桿，另—端設置緊定手柄。 所述滑套上設置-彈性定位銷，彈性定位銷的彈性伸 縮銷頭伸入滑套内與連桿滑動連接，所述連桿上開設有與 淨性伸縮銷頭配合的定位槽，當連桿伸出—^位置後 性伸縮銷頭嵌裝入所述定位槽中定位連桿。 所述上段鏡筒的下部外筒壁上設置上固定套，固定套 上固定連桿的一端，所述下段鏡筒的上部外筒壁上設置下 M332198 過的滑套’所述連桿穿 連桿的橫截面呈圓形有二桿抽出滑套’所述 -佈戶二連桿:個數為3至5個，各連桿沿鏡筒外壁均勻 j或對稱U ’所述連桿的長度等於 的 長度’下段鏡筒的長度大於上段鏡筒的長度。兄同的 所：上段鏡筒與下段鏡筒上設置有相 ，在二者沿轴線滑動對接後，所述對接面密封閉合 鏡。所述上段鏡筒外固定設置目鏡，上段鏡筒内設置反射 置㈣斤述下段鏡筒架設於一支架上，下段鏡筒内的底部設 处上段鏡筒的長度大於下段鏡筒的長度，所述連桿 鏡筒筒壁外側’另-端穿設於上段鏡筒M332198 VIII. New description: [New technical field] Ben Bii is a technical component of the components of telescopes, and specifically relates to a retractable lens barrel for Newton-type reflective telescopes. [Prior Art] The soil-reflective main telescope is one of the three types of telescopes. The reflection and the brothers use the lens and the mirror to collect the light. The light is reflected by the main concentrated light to the small second mirror. After that, it is reflected to the eyepiece so that the target can be observed with the eyepiece. The Newtonian reflex telescope is a relatively common astronomical telescope. It uses a concave parabolic or spherical mirror to converge the light entering the lens and reflect it onto a plane mirror at the front end of the lens barrel. Reflect the light into the eyepiece outside the lens barrel so that the target can be observed. Because the reflective telescope makes the mirror cost much lower than the lens, and the structure is simple, non-f is suitable for observing the faint galaxy, nebulae, etc., and sometimes using this telescope to observe the moon or the planet is also suitable. The Newtonian reflex telescope, especially for the DGbsGnians telescope supported by the simple bracket, is generally accepted for astronomical observations. As shown in the first figure, the mirror body of the existing Newton-type reflective telescope is mainly composed of a lens barrel 2, an objective lens 4, a mirror 3 and an eyepiece. The bottom end of the lens barrel is provided with a spherical or parabolic glass plated with a reflective substance. The role of the mirror is to focus the parallel light entering the barrel to a black occupant. However, the mirror is fixed at the upper end of the lens barrel. The mirror is a small optical plane for reflecting the objective lens. Into 90. In the eyepiece at the edge of the corner mirror barrel, the image of the M332198 is magnified to obtain the observation effect of the ordinary telescope. The lens barrel is a support for the optical component, in particular to support the objective lens and the objective lens with a large weight; the housing must have sufficient strength and is often made of metal or plastic with high strength and deformation. The inner diameter of the lens barrel is generally 2~3 sides larger than the straight diameter of the objective lens, so as to facilitate the positioning and adjustment of the objective lens. The length of the lens barrel is generally at least = the focal length of the mirror. If it is too short, the distance from the main lens focus to the lens barrel is too long. 'Unless the secondary mirror is of sufficient size, there will be light loss at the edge of the field when viewed with a wide-angle eyepiece. Compared with the refractor barrel, the barrel of the Newton-type mirror is only about eight times the diameter of the objective lens, which is about twice as short as the refractor barrel, but for a mirror with a larger objective diameter, the length of the barrel Still too big. The larger the aperture of the telescope, the stronger the collection power, the more the number of objects can be seen, and the larger the diameter of the objective lens, the resolution is also. Therefore, to increase the light collection power, only increase the diameter of the telescope, and also increase the length of the telescope barrel. The length of the existing medium-sized Newton 2 telescope can even reach 1.G~2.Gm. The weight and volume of the bracket required to mount the mirror paper have a large increase, because the grounding increases the observer's handling difficulty and storage space. When the observer carries the telescope to a better observation site, the general vehicle space ', , and the method meets the carrying condition' and the large weight of the lens barrel also affects the handling work. In view of this, the creator is trying to improve and solve the above-mentioned shortcomings, and is concentrating on research and using the application of theory, and finally proposes a design that is reasonable in design and effective in improving the above-mentioned defects. [New content] M332198 The main purpose of this creation is to provide a reasonable structure, and to reduce the length of the barrel, and to reduce the length of the barrel and to reduce the light collection and resolution. The rate of stupid encounter I is too long, too heavy and so on, = can meet the high concentration of light, the resolution at the same time, into the f shell and reduce the heavy residual 'to meet the needs of easy handling and storage. Xiyue ugly, the purpose of the package, this creation provides a kind of retractable lens barrel with two tits: the lower section of the lens barrel, and the upper section of the barrel is coaxial with the line between the upper and lower sections of the barrel, and the barrel axis :Cai Xin: The lower lens barrel can be stretched and slid on the two special cups along the axis of the lens barrel, so as to achieve the main purpose of the retractable lens barrel - specifically, the fixed rod on the upper barrel The sliding sleeve through which the end m common link passes is inserted into the other end of the connecting rod to slide in the sliding sleeve along the axis of the lens barrel. The sliding sleeve is provided with a locking mechanism, and the locking mechanism is a bolt member that is inserted into the screw hole formed in the sliding sleeve and is coupled with the screw hole. One end of the screw detecting member pushes the connecting rod in the sliding sleeve, and the other - Set the tightening handle at the end. The sliding sleeve is provided with an elastic positioning pin, and the elastic telescopic pin head of the elastic positioning pin extends into the sliding sleeve and is slidably connected with the connecting rod, and the connecting rod is provided with a positioning groove matched with the net telescopic pin head. After the rod is extended, the positional retractable pin head is fitted into the positioning groove in the positioning groove. An upper fixing sleeve is disposed on the lower outer cylinder wall of the upper barrel, and one end of the connecting rod is fixed on the fixing sleeve, and a sliding sleeve of the M332198 is disposed on the upper outer cylinder wall of the lower barrel; The cross-section of the rod is circular and there are two rods to pull out the sliding sleeve. The said - Buhu two connecting rods: the number is 3 to 5, and the connecting rods are evenly j or symmetric U' along the outer wall of the barrel. Equal length 'The length of the lower barrel is greater than the length of the upper barrel. The same is true: the upper barrel and the lower barrel are provided with a phase, and after the two are slidably butted along the axis, the abutting surface seals the closed mirror. The upper lens barrel is fixedly arranged with an eyepiece, and the upper lens barrel is provided with a reflection device. (4) The lower lens barrel is mounted on a bracket, and the bottom of the lower lens barrel is provided with a length of the upper lens barrel that is larger than the length of the lower lens barrel. The outer side of the wall of the connecting rod barrel is placed at the other end and is placed on the upper barrel.
所述連桿的長度小於或等於上段鏡筒的長度。“動 【實施方式】 為了使貴審查委員能更進一步瞭解本創作之特徵及 技術内容’請參_τ有關本創作之詳細說明與附圖，然 :::圖式僅提供參考與說明用，並非用來對本創作加以 #如第二圖及第三圖所示’本創作係提供—種可伸縮鏡 同，其主要由上段鏡筒5、連桿6、下段鏡筒7及支架8 組成’上段鏡筒5外岐設置目鏡！，上段鏡筒5的内部 8 M332198 用於安裝平面反射鏡，下段鏡筒7架設於上述支架8上並 可沿支架軸轉動，下段鏡筒7内的底部用顧固定物鏡。上 段鏡筒5及下段鏡筒7同軸設置，上段鏡筒5的長度為下 段鏡筒7長度的三分之一，連桿6的長度略小於下段鏡筒 7的長度’上段鏡筒5的下部外筒壁上均勻固定設置三支 所述連桿6的上端部，連桿6與鏡筒的轴線平行設置，下 ==7的上部外筒壁上分布固定設置三個供連桿6穿過 ，連桿6分別穿過滑套71後，連桿6的末端設有 “曰 出月秦71 ’如此’即可使上段鏡筒5盥 連杯6，以一併通過滑套71而沿鏡筒軸線方向伸縮滑動。 谨7?^四圖所不，滑套71上設有鎖定機構72，該鎖定機 内Μ主體為一螺栓件’螺栓件設於滑套71上開設的螺孔 内’螺栓件之—端在旋進時頂推滑套71_連桿“ 2 ^桿：產生固定作用，螺栓件之另一端設有緊定手柄，用 ，^性_«作^滑套71之—側更設有彈性以立銷乃 動：接'【ίΓ々彈緘伸縮銷頭伸入滑套71内與連桿6滑 當連二：：設有與彈蜮伸縮鎖頭配合的定位槽， 摊: 一疋長度後，彈性伸縮銷頭即可嵌入所述定 機;7:連桿6。因此，當欲進行觀測時 栓件，即可使三支連桿6與滑套71自由滑動， 尸Τ的軸向方向抽拉上段鏡筒5，上段鏡筒5及 干叫开向外運動’當連桿6拉伸至設定長度時，彈性定 位小的_伸_頭73與連#6上較 限位連“，再旋緊鎖定機構72的螺检件，使連桿： 9 M332198 套71間固定，此時即可調整鏡筒的角度以進行正 - 如第五圖及第六圖所示，當觀測或使用完畢後，打開 -鎖定機構72的螺栓件，使三支連桿6可與滑套自由滑動， 然後沿鏡筒的軸向方向推進上段鏡筒5，上段鏡筒$及連 桿6 -起向下段鏡筒7運動，上段鏡筒5的下端面及下段 •鏡筒7的上端面即可㈣結合，旋緊較機構72的螺栓件 害=6與滑套間鎖定’此時’可以方便的進行存放或搬 鲁運作業。 、因：’ 士創作可伸縮鏡筒，乃將現有的單體式鏡筒改 為 、兄肖下$又叙筒及連桿 '组成的可神縮結構，整個 鏡同的長度為上段镑筒Ν ΤΓ ^ ^ T2 » =W關、下段鏡筒及二者間連桿的長度總 及下段鏡筒間的伸縮運動可使鏡筒的縮短長 ^為;4桿^長度，即最小限度也能使鏡筒的總長度縮短三 刀，' 取大限度則可使鏡筒的總長度縮短近二分之—， 鲁有丈也減夕存放工間及鏡筒重量，並降低搬運上的困難度 =的個數可以為複數，最好為”固’且為 =二段鏡筒間在受到較大外力時發生扭轉而影 I:，可以採用剛性強度較高、橫截面為非圓形的 :==鏡筒上供連桿穿設的滑套與連桿形狀 g 方式最好採用上段鏡筒固定方式， :’杯的-端固定於上段鏡筒的外緣，另 於下段鏡筒外緣設置的滑套 习力套衣 鏡筒與連桿一起向外灸末而故置叔塊，防止上段 卜抽拉4與下段鏡筒脫離。上段鏡筒的 M332198The length of the link is less than or equal to the length of the upper barrel. “Moving [Implementation] In order to enable your review committee to further understand the characteristics and technical content of this creation, please refer to _τ for detailed description and drawings of this creation, but::: The drawings are only for reference and explanation. It is not used to create this article. As shown in the second and third figures, 'this creation department provides a kind of retractable mirror, which is mainly composed of the upper barrel 5, the connecting rod 6, the lower barrel 7 and the bracket 8' The upper lens barrel 5 is provided with an eyepiece! The inner 8 M332198 of the upper barrel 5 is used for mounting a plane mirror, and the lower barrel 7 is mounted on the bracket 8 and rotatable along the bracket axis, and the bottom of the lower barrel 7 is used. The upper lens barrel 5 and the lower lens barrel 7 are coaxially disposed, and the length of the upper barrel 5 is one third of the length of the lower barrel 7, and the length of the rod 6 is slightly smaller than the length of the lower barrel 7 The upper end portion of the three connecting rods 6 is uniformly fixed on the lower outer cylinder wall of the cylinder 5, the connecting rod 6 is arranged parallel to the axis of the lens barrel, and the upper outer cylinder wall of the lower ==7 is fixedly arranged for three The connecting rod 6 passes through, and the connecting rod 6 passes through the sliding sleeve 71 respectively, and the end of the connecting rod 6 The upper barrel 5 is connected to the cup 6 so as to be telescopically slid in the direction of the axis of the barrel by the sliding sleeve 71. The sliding sleeve 71 is provided with a locking mechanism 72. The inner body of the locking machine is a bolt member. The bolt member is disposed in the screw hole formed in the sliding sleeve 71. The end of the bolt member is rotated. Push-up sliding sleeve 71_linkage "2 ^ rod: produces a fixed action, the other end of the bolt member is provided with a fixed handle, and the side of the sliding sleeve 71 is more elastic. Pin is moving: connect '[ίΓ々 magazine retractable pin head into the sliding sleeve 71 and the connecting rod 6 slides two:: with positioning groove matched with the elastic locking lock, spread: after a length, elastic The telescopic pin head can be embedded in the fixed machine; 7: the connecting rod 6. Therefore, when the bolt is to be observed, the three connecting rods 6 and the sliding sleeve 71 can be freely slid, and the axial direction of the corpse is pulled. The upper barrel 5, the upper barrel 5 and the dry opening outward movement 'When the connecting rod 6 is stretched to the set length, the elastic positioning is small _ extension _ head 73 and even #6 on the limit position, "revolving Tightening the check piece of the locking mechanism 72 so that the connecting rod: 9 M332198 sets 71 are fixed. At this time, the angle of the lens barrel can be adjusted to be positive - as shown in the fifth and sixth figures, when observed or used Opening the bolt member of the locking mechanism 72 so that the three links 6 can slide freely with the sliding sleeve, and then advance the upper barrel 5 in the axial direction of the barrel, the upper barrel and the connecting rod 6 - the lower mirror The cylinder 7 moves, the lower end surface of the upper barrel 5 and the lower section of the lens barrel 7 can be combined (4), and the bolts of the mechanism 72 can be locked and locked between the sliding sleeves and the sliding sleeve can be conveniently stored at this time. Or move the operation. Because: 'Shi created a retractable lens tube, which is a retractable structure consisting of the existing single-piece lens tube, the brother's syllabus and the connecting rod'. The length of the whole mirror is the upper part of the barrel. Ν ΤΓ ^ ^ T2 » =W off, the length of the lower barrel and the connecting rod between the two and the telescopic movement between the lower barrels can shorten the length of the barrel; 4 rods ^ length, that is, the minimum Make the total length of the lens barrel shorter by three knives, 'to take a large limit, the total length of the lens barrel can be shortened by nearly two cents. - Lu Youzhang also reduces the weight of the work space and the lens barrel, and reduces the difficulty in handling = The number can be plural, preferably "solid" and = if the two barrels are twisted when subjected to a large external force, and I can use a higher rigidity and a non-circular cross section: = The shape of the sliding sleeve and the connecting rod shape g for the connecting rod on the lens barrel is preferably fixed by the upper barrel, : 'The end of the cup is fixed to the outer edge of the upper barrel, and the outer edge of the lower barrel is set. The sliding sleeve of the slip-on casing tube and the connecting rod together to the end of the moxibustion and the second block, to prevent the upper section of the drawing 4 and the lower section of the barrel. Segment barrel M332198
長度及下段鏡筒的長度可以根據實際望遠鏡的鏡筒 行調整，以實現縮短後仍具有合理的鏡筒長度，並進 及搬運時提供較便利的條件。對於長度較大的鏡^ 7子， 做最大限度的伸縮，可將上段鏡筒的長 旦二问，如需 又i里細小，以、、黑 足安裝目鏡及反射鏡為限。下段鏡筒的長度最好與的 長度相匹配，這樣不僅可以使伸縮的距離最大化了也：ρ 防止在縮短後連桿長於下段鏡筒的長度而伸出 ：二 筒壁外，因而恐有無法實現合理縮小空間之目的。、兄同、The length and length of the lower barrel can be adjusted according to the barrel of the actual telescope to achieve a reasonable length of the barrel after shortening, and to provide convenient conditions for handling and handling. For the larger length of the mirror, for maximum expansion and contraction, the long-length second of the upper barrel can be used. If it is small, the black eye should be attached to the eyepiece and mirror. The length of the lower barrel is preferably matched to the length, so that not only the telescopic distance can be maximized: ρ prevents the length of the connecting rod from being longer than the length of the lower barrel after the shortening: the outer wall of the cylinder, thus fearing The purpose of reasonable space reduction cannot be achieved. Brother,
、最佳的結構是下段鏡筒的長度大於上段鏡筒的長 連桿的長度略小於或等於下段鏡筒的長度，—方面：：、 下段鏡筒需要岐於支架上，另—方面是便於伸縮=作於 對於焦距-定的牛頓式反射望遠鏡，其鏡筒的長 固定的，因此在使用時，連桿的伸長長度必須是恆定 所以’可以設計連桿的最大伸長長度為鏡筒所需伸長長卢 ’然後通過在滑套上設置所述敎機構，對此狀態 進行鎖定。該敎機射選帛旋頂職，通過螺栓的緊進 而頂推連桿，使其與滑套間固定來鎖定鏡筒的長度。更^ 的=還可以採用在滑套上或連桿外設置所述彈性定位^ „亥彈性定位銷的^立置恆$，其彈性伸縮銷頭彈出並裝嵌 入定位槽内，此時可以採用鎖定機構定位連桿，準確並方 便地實現連桿的精確固定。 ^段鏡筒及下段鏡筒沿軸向縮短以拉近彼此間距而相 對接犄，其二者的對接面相互密閉配合，以防止在存放或 搬運的過程中，因灰塵進人到鏡筒内影響物鏡的清潔度等 M332198 本創作的實質功效在於：該可伸縮 僅能有效縮短牛頓式反射望遠鏡的鏡筒=不 更能減輕鏡筒的重量，其伸縮幅 ^運長度 至·0，並且該可伸縮鏡筒的伸^2 ^總長度的_ :=卿_的牛頓式反射望遠鏡的鏡頭，、】 長:咼攜帶及搬運時之便利性。 綜上所述，本創作實為不可多 確可達到預期之使用㈣，而解二；:=作產品，其 二完:符合新型專利申請要件，差依專利 權:出申…咖查並賜准本案專利，以保障創作人之 拘πΓΓ上所述僅為本創作之較佳可行實施例，非因此即 内Γ戶tr乍之專利範圍，故舉凡運用本創作說明書及圖式 為之專效結構變化’均同理皆包含於本創作之範圍 ⑺，合予陳明。 M332198 【圖式簡單說明】 第一圖 係習知牛頓式反射望遠鏡之結構原理圖。 第二圖 係本創作具體實施方式之立體結構示意圖。 弟二圖 〇 係本創作具體實施方式之另—立體結構示意 弟四圖 係第三圖之I部份放大詳圖。 第五圖 係本創作具體實施方式 第六圖 係第五圖之K部份放大詳圖。 【主要元件符號說明】 <習知> 目鏡 1 鏡筒 2 反射鏡 3 物鏡 4 <本創作> 上段鏡筒 5 連桿 6 下段鏡筒 7 滑套 71 鎖定機構 72 定位銷 73 支架 8The optimal structure is that the length of the lower barrel is larger than the length of the long rod of the upper barrel is slightly less than or equal to the length of the lower barrel, in terms of::, the lower barrel needs to be attached to the bracket, and the other is convenient Telescopic=made for the focal length-fixed Newtonian reflection telescope, the length of the lens barrel is fixed, so the extension length of the connecting rod must be constant in use, so the maximum extension length of the connecting rod can be designed as required for the lens barrel. Extending the length of Lu's then locking the state by placing the jaw mechanism on the sliding sleeve. The picking machine selects the top of the squash, pushes the connecting rod through the tightening of the bolt, and fixes it with the sliding sleeve to lock the length of the lens barrel. More ^ can also be used on the sliding sleeve or outside the connecting rod to set the elastic positioning ^ 亥 弹性 elastic locating pin ^ vertical constant $, its elastic telescopic pin head is ejected and installed in the positioning groove, at this time can be used The locking mechanism positioning rod can accurately and conveniently realize the precise fixing of the connecting rod. The segment barrel and the lower barrel are shortened in the axial direction to be close to each other and oppositely connected, and the abutting faces of the two are closely sealed with each other to Preventing the cleaning of the objective lens due to dust entering the lens barrel during storage or handling, etc. M332198 The essence of this creation is that the telescopic lens can only effectively shorten the barrel of the Newtonian reflection telescope = not more able to reduce The weight of the lens barrel, its telescopic width is up to ·0, and the extension of the retractable lens barrel is _:= __ Newton-type reflective telescope lens, 】 long: 咼 carry and carry In view of the above, this creation is really not enough to achieve the expected use (4), and solution 2;: = for products, the second is: in line with the requirements of new patent applications, poor patent rights: apply ...Cheat and grant the patent in this case, The description of the creator of the barrier creator is only a better and feasible embodiment of the creation. It is not the scope of the patent of the Γ 乍 乍 乍 乍 , , , , , , , , 故 故 故 故 故 故 故 故 故 乍 故 故 运用 运用 运用 运用 运用 运用The scope of this creation is included in the scope of this creation (7), and is given to Chen Ming. M332198 [Simple description of the diagram] The first diagram is the structural schematic diagram of the conventional Newtonian reflection telescope. The second diagram is a schematic diagram of the three-dimensional structure of the specific embodiment of the present creation. The second figure is the other embodiment of the present invention. The three-dimensional structure is shown in the third part of the third figure. The fifth picture is the sixth embodiment of the present embodiment. Partial enlargement detail. [Main component symbol description] <General knowledge> Eyepiece 1 Lens barrel 2 Mirror 3 Objective lens 4 <This creation> Upper stage barrel 5 Link 6 Lower stage barrel 7 Sliding sleeve 71 Locking mechanism 72 locating pin 73 bracket 8