1320102 九、發明說明： 【發明所屬之技術領域】 本發明是有關於一種顯微鏡，特別是指一種方便調節 ’並可使顯示畫面之可視性提高的可微調對焦的顯微鏡。 【先前技術】 顯微鏡主要是用來將微小不可見或難見的物品利用透 . 鏡放大物像’並經一連串的透鏡群進一步的處理與再放大後 φ ’將影像送到眼睛或其他成像儀器以觀察該物品》 在使用顯微鏡的過程中，為了獲得清晰的影像，必須 調整被觀察物與透鏡間的相對距離，一般來說，當該被觀察 物位於該透鏡的焦距處時可得到最清晰的影像，而能顯示出 較佳的成像效果，為了達到可精確調整的使用目的，通常會 藉由能微調的調整機構調整該被觀察物與透鏡間的距離。 參閱圖1，現有的一顯微鏡1具有一基座單元11、一設 置於該基座單元11的鏡筒單元12、一與該基座單元U相 • 間隔地設置的載物平台13，及一呈可調整地連接在該鏡筒 單元12與該載物平台13之間的對焦傳動單元14。 該基座早元11具有一圍繞該鏡筒單元12設置的支樓壁 ill，並圍繞該支撐壁lu形成一環形條槽112。 該對焦傳動單元14具有一與該鏡筒單元12相連接且 相連通的定位座141、一貫穿該定位座141的軸向滑槽142 、一容置於該定位座14丨内的鏡片載座143、一裝設於該鏡 片載座143的透鏡144、一自該鏡片载座143徑向延伸且穿 過該滑槽142而凸伸出該定位座141之外的傳動桿145、_ 5 1320102 可連動該傳動# 145的凸輪塊147，及—連接於該凸輪塊 !47並可沿該支樓壁⑴的環形條槽112移動的調節部μ ，於該凸輪塊！47並形成-貫穿且呈傾斜延伸的凸輪限位槽 148,該傳動桿145凸伸出該定位座141之外的部分是呈可 被連動地容置於凸輪限位槽148内。 當一被觀察物10放置於該載物平台13上之後，只要 轉動該調節部146,使該調節部146沿該環形條槽112水平 滑動，就會連動該凸輪塊147,當凸輪塊147被轉動時該 傳動桿145會隨著該限位槽148的傾斜高度變化，而受推抵 並沿該定位座的滑槽142位移，進而帶動該鏡片載座 143在該定位座Ml内上下移動，使該透鏡144可相對該被 觀察物10移動，以使該被觀察物1〇位於鄰近該透鏡144焦 距的位置’而可獲得較清晰的觀察影像。 雖然該現有的顯微鏡1已可利用該對焦傳動單元14調 整该透鏡144與該被觀察物1 〇之間的距離，達到可較清楚 地呈現該該被觀察物10的影像的使用功能，但實際下仍存 有下列缺失： 該顯微鏡1的對焦傳動單元14是採用凸輪傳動的原理 調整該透鏡144與該被觀察物10之間的距離，當轉動該調 節部146時，相對於該調節部146的轉動距離，該鏡片載座 143會產生較大的位辞，而較不易使該被觀察物1〇精確地 位於該透鏡144的焦距位置上，導致微調效果較不明顯，使 該現有顯微鏡1相對具有微調效果較差且較不易調整到精確 焦距處的缺點。 6 【發明内容】 因此’本發明的目的，是在提供一種結構簡單、傳動 順暢，且可精確調整焦距的可微調對焦的顯微鏡。 於疋，本發明可微調對焦的顯微鏡包含一基座單元、 一設置於該基座單4鏡筒單H呈可調整地裝設在 該鏡筒單元的對焦傳動機構。 該對焦傳動機構包括一與該鏡筒單元相連接且相連通 的中空定位座、一容置在該定位座内的鏡片載座、一裝設 在該鏡片載座的鏡片、至少一與該鏡片載座相連動的從動 部、一連接於該鏡片載座的彈性元件、一可連動該從動部 的後腫鎖塊，及-可旋轉地樞設於該基座單元並與該後腔 鎖塊相螺接的調節旋鈕’當轉動該調節旋鈕時會驅轉該後 腔鎖塊沿-轴向微動位移，使該鏡片載座分別受到該後腔 鎖塊與該㈣元件的反向作用而相對該定位座移動，進而 帶動該鏡片位移。 藉由上述組成，只要轉動該調節旋叙就可依序連動該 後膛鎖塊'該從動部與該鏡片載座，使該鏡片靠近或遠離 該鏡筒單元移動，由於該調節旋鈕與該後膛鎖塊間的螺紋 傳動，當該調節旋鈕轉動一圈，該後膛鎖塊只會移動一個 螺距的距離，使本發明相對具有容易調整，且微調效果較 佳的優點。 【實施方式】 本發明可微調對焦的顯微鏡的前述以及其他技術内容 、特點與功效，在以下配合參考圖式的一較佳實施例的詳 1320102 細說明中，將可清楚地明白。 參閱圖2與圖3，分別是本發明的一立體組合圖及一局 部立體分解圖，本發明可微調對焦的顯微鏡2該較佳實施 例包含一基座單元3、一設置於該基座單元3的鏡筒單元4 、一與該鏡筒單元4相間隔設置的載物台5、一呈可調整地 裝設在該鏡筒單元4與該載物台5之間的對焦傳動機構6、 一與該鏡筒單元4相間隔地安裝在該基座單元3的照明單 元7’及一裝設在該基座單元3的畫面顯示裝置8。 / 該基座單元3包括一底座31、一自該底座31向上延伸 的支撐座32、一可樞轉地連接在該支撐座32的活動臂μ ，及一架連在該底座31與該支撐座32之間的輔助臂34。 其中，該底座32是與該鏡筒單元4相連接，該支撐座 32具有一圍繞該鏡筒單元4設置的座筒部321，及一自該 座筒部321向上延伸以供該對焦傳動機冑6框接的承載部 322’該活動臂33是用以供該照明單元7裝設該辅助臂 34則可以供該晝面顯示裝置8裝設。 較佳地，該活動脅33具有一可枢轉地連接在該支撐座 32之承載部322的關節臂部331、—可相對該關節臂部331 上下位移的伸縮臂部332，及一連接於該伸縮臂部Μ]—末 端的萬向接頭部333,該照明單元7是呈可朝任意方向掩轉 地女裝在該萬向接頭部333，且該照明單元7是與該鏡 筒早7G 4呈相間隔地設置而分位於該對焦傳動 _ 相反侧。 巧一 該對焦傳動機構6包括一與該鏡筒單元4相連接且相 8 1320102 連通的中空定位座61…容置在該定位座6i内的鏡片載座 62、-裝設在該鏡片載座62的鏡片〇、至卜與該鏡片載 座62相連動的從動部仍、一連接於該鏡片載座62的彈性 兀件64、一可連動該從動部672的後膛鎖塊65,及一可旋 .轉地拖設於該基座單元3並與該後膛鎖塊65相螺接的調節 =紐66 ’當轉動該調節旋知66時會驅轉該後腫鎖塊^沿 轴向X微動位移’使該鏡片載座62分別受到該後膛鎖塊 65與該彈性元件64的反向作用而相對該定位座61移動， 進而帶動該鏡片63相對該載物台5位移。 較佳地’朗焦傳㈣構6還包括設置在較位座W 與該鏡片載座62之間的至少_限位單元67，該限位單元 7具有一沿該軸向X形成並貫穿該定位座61的滑槽67卜 及穿過該滑槽671而突伸出該定位座61之外的該從動部 672’該從動部672是自該鏡片載座^徑向延伸並受 膛鎖塊65推抵連動而可沿該滑槽671移動，且配合與該後 膛鎖塊65反向地頂抵於該鏡片載座62的彈性元件 連動該鏡片載座62轴向位移。 b 在該較佳實施例中，該對焦傳動機構6是包括二個相 間隔且相對應地設置在該定位座61與該鏡片栽座Μ之間 單元67 ’藉此，使該鏡片載座62能夠較穩定地被連 在該^位座61内位移，但該限位單it 67的數量並不 因此受到限制，即使只有設置一個限位單元67 尨賠梢祕《仏 胃仪早兀67仍然能受該 65推抵，而達到連動該鏡片載座62的功能。或 °同時叹置多於二個的限位單元67，同樣可同時受 1320102 該後膛鎖塊65推抵而連動該鏡片載座62位移。 值得一提的是’該㈣鎖塊65具有二相間隔地凹設於 一内周面651(見圖3)的卡制凹口 652，該二卡制凹口 是 分別對應該限位單元67的二從動部672,以供該二從動: 672凸伸出該定位座61的部分容置定位，並使該後腔鎖塊 65與該二從動部672呈相卡制連接的狀態，則利用該二從 動口P 672受該二滑槽671限制而無法轉動的結構特性，會 牽制該後膛鎖塊65也無法相對該定位座61轉動而達到 該後膛鎖塊65受該調節旋鈕66螺紋傳動時，只會沿軸向 上下移動的功能。 參閱圖3與圖4,其、中’圖4是該鏡筒單元4、該載物 台5與該對焦傳動機構6的配置情形的側視分解圖，較佳 地，於該調節旋鈕66 —内環面661形成一内螺紋段662， 並於該後膛鎖塊65的一外周面653形成一可螺接並相對該 内螺紋段662旋動的外螺紋段654，且在該較佳實施例中’ 該内、外螺紋段662、654的螺距皆為〇·5 cm，當然，該螺 距值還可依實際應用情形變更，而不必限於〇.5 該載物台5包括一靠置在該調節旋鈕66上的平台本體 51、一對應該對焦傳動機構6的鏡片63貫設於該平台本體 51的視窗口 52,及一安裝於該平台本體51以封蓋該視窗 σ 52的透明玻片53。 參閱圖5,為本發明的一局部剖視圖，較佳地，該調節 旋鈕66具有一轉動部663、一自該轉動部663朝下延伸並 可容置於該支撐座32之承載部322的下樞接部664，及一 10 1320102 與該下樞接部664相間隔而自該轉㈣⑹朝上延伸並容 置於該載物台5的上樞接部圍繞該下樞接部一外 周面並凹設形成-下環槽666,該調節旋鈕66是藉由多數 支穿叹過該承載部322而插設容置於該下環槽⑽内的限 位螺絲9’呈可繞轉地與該基座單元3相框接。同樣地圍 繞該上樞接部665 一外周面則凹設形成一上環槽667，且該 载物台5是藉由多數支穿設過該平台本體51並插設容置於1320102 IX. Description of the Invention: [Technical Field] The present invention relates to a microscope, and more particularly to a microscope capable of fine-tuning focusing which facilitates adjustment and improves visibility of a display screen. [Prior Art] The microscope is mainly used to magnify images that are invisible or difficult to see through the mirror image and further process and re-amplify through a series of lens groups to send images to the eye or other imaging instruments. In order to observe the object, in order to obtain a clear image, the relative distance between the object to be observed and the lens must be adjusted. Generally, the object is observed at the focal length of the lens. The image can display a better imaging effect. In order to achieve precise adjustment, the distance between the object to be observed and the lens is usually adjusted by a fine adjustment mechanism. Referring to FIG. 1 , a conventional microscope 1 has a base unit 11 , a barrel unit 12 disposed on the base unit 11 , a load platform 13 disposed at a distance from the base unit U , and a loading platform 13 . A focus transmission unit 14 that is adjustably coupled between the barrel unit 12 and the stage 13 is provided. The base unit 11 has a wall ill disposed around the barrel unit 12, and an annular groove 112 is formed around the support wall lu. The focus transmission unit 14 has a positioning base 141 connected to the lens barrel unit 12 and communicating with the lens barrel unit 12, an axial sliding slot 142 extending through the positioning base 141, and a lens carrier received in the positioning housing 14丨. 143, a lens 144 disposed on the lens carrier 143, a transmission rod 145 extending from the lens carrier 143 and extending through the sliding slot 142 to protrude beyond the positioning seat 141, _ 5 1320102 The cam block 147 of the transmission #145 can be interlocked, and the adjustment portion μ connected to the cam block !47 and movable along the annular groove 112 of the branch wall (1), in the cam block! 47 and forming a cam stop groove 148 extending through and extending obliquely, the portion of the drive rod 145 protruding outside the positioning seat 141 is movably received in the cam limit groove 148. After an observed object 10 is placed on the loading platform 13, as long as the adjusting portion 146 is rotated to horizontally slide the adjusting portion 146 along the annular groove 112, the cam block 147 is interlocked when the cam block 147 is When the rotation of the limiting rod 148 is changed, the transmission rod 145 is pushed and displaced along the sliding slot 142 of the positioning seat, thereby driving the lens carrier 143 to move up and down in the positioning seat M1. The lens 144 is movable relative to the object to be observed 10 such that the object 1 is positioned adjacent to the focal length of the lens 144 to obtain a clearer viewing image. Although the existing microscope 1 can use the focus transmission unit 14 to adjust the distance between the lens 144 and the object to be observed 1 to achieve a function of clearly showing the image of the object 10 to be observed, actually There are still the following defects: The focus transmission unit 14 of the microscope 1 adjusts the distance between the lens 144 and the object to be observed 10 by the principle of cam transmission, and when the adjustment portion 146 is rotated, relative to the adjustment portion 146 The rotation distance of the lens carrier 143 will generate a larger position, and it is less easy to make the object 1 〇 accurately located at the focal length of the lens 144, resulting in less noticeable fine adjustment effect, so that the existing microscope 1 Relatively has the disadvantage that the fine adjustment effect is poor and it is difficult to adjust to the precise focal length. 6 SUMMARY OF THE INVENTION Therefore, it is an object of the present invention to provide a microscope capable of fine-tuning focusing with a simple structure, smooth transmission, and precise adjustment of the focal length. In the present invention, the microscope for fine-tuning the focus of the present invention comprises a base unit, and a focus transmission mechanism disposed on the base unit 4, the lens unit H is adjustably mounted on the barrel unit. The focus transmission mechanism includes a hollow positioning base connected to the lens barrel unit and connected thereto, a lens carrier housed in the positioning seat, a lens mounted on the lens carrier, at least one lens and the lens a driven portion of the carrier, an elastic member coupled to the lens carrier, a rear lump that can interlock the follower, and - rotatably pivoted to the base unit and the rear cavity The adjusting knob of the locking block phase screwing “turns the adjusting knob to drive the micro-motion displacement of the rear cavity locking block along the axial direction, so that the lens carrier is respectively subjected to the reverse action of the rear cavity locking block and the (four) component. And moving relative to the positioning seat, thereby driving the lens displacement. With the above composition, as long as the adjustment knob is rotated, the rear lock block 'the follower portion and the lens carrier are sequentially linked to move the lens toward or away from the lens barrel unit, because the adjustment knob and the The threaded transmission between the rear latching blocks, when the adjusting knob is rotated one turn, the rear latching block only moves a distance of a pitch, so that the invention has the advantages of easy adjustment and better fine adjustment effect. [Embodiment] The foregoing and other technical contents, features, and effects of the microscope capable of fine-tuning the focus of the present invention will be apparent from the following detailed description of a preferred embodiment of the accompanying drawings. Referring to FIG. 2 and FIG. 3, respectively, a perspective combination view and a partial exploded view of the present invention, the microscope for fine-tuning the focus of the present invention. The preferred embodiment includes a base unit 3 and a base unit. a lens barrel unit 4, a stage 5 spaced apart from the barrel unit 4, and a focusing transmission mechanism 6 adjustably mounted between the barrel unit 4 and the stage 5, An illumination unit 7' mounted to the base unit 3 and spaced apart from the barrel unit 4, and a screen display device 8 mounted on the base unit 3. The base unit 3 includes a base 31, a support base 32 extending upward from the base 31, a movable arm μ pivotally coupled to the support base 32, and a frame attached to the base 31 and the support Auxiliary arm 34 between the seats 32. The base 32 is connected to the barrel unit 4, the support base 32 has a sleeve portion 321 disposed around the barrel unit 4, and an upwardly extending from the sleeve portion 321 for the focus conveyor The movable arm 33 is configured to be mounted on the kneading surface display device 8 for mounting the auxiliary arm 34 to the lighting unit 7. Preferably, the movable rib 33 has an articulated arm portion 331 pivotally coupled to the carrying portion 322 of the support base 32, a telescopic arm portion 332 that is vertically displaceable relative to the articulating arm portion 331, and a connection The telescopic arm portion —] is a universal joint portion 333 at the end, the lighting unit 7 is in the universal joint portion 333 which is closable in any direction, and the lighting unit 7 is 7G earlier than the lens barrel 4 are arranged at intervals and are located on the opposite side of the focus drive. The focus transmission mechanism 6 includes a hollow positioning seat 61 connected to the barrel unit 4 and connected to the phase 8 1320102. The lens carrier 62 housed in the positioning seat 6i is mounted on the lens carrier. The lens portion of 62, the driven portion connected to the lens carrier 62, the elastic member 64 connected to the lens carrier 62, and the rear latching block 65 for interlocking the driven portion 672, And a rotation that can be rotated and rotated on the base unit 3 and screwed with the rear lock block 65 = button 66 'When the adjustment knob 66 is rotated, the rear block is swept away The axial X micro-movement displacement causes the lens carrier 62 to be moved relative to the positioning block 61 by the reverse action of the rear latching block 65 and the elastic member 64, thereby driving the lens 63 to be displaced relative to the stage 5. Preferably, the 'Lango transmission (4) structure 6 further includes at least a _ limit unit 67 disposed between the aligning seat W and the lens carrier 62, the limiting unit 7 having a shape formed along the axial direction X and extending therethrough The sliding groove 67 of the positioning seat 61 and the driven portion 672' protruding through the sliding groove 671 and protruding from the positioning seat 61. The driven portion 672 extends from the lens carrier and radially receives The locking block 65 is pushed against the movement to move along the sliding slot 671, and the lens carrier 62 is axially displaced in conjunction with the elastic member of the lens carrier 62 opposite to the rear locking block 65. In the preferred embodiment, the focus transmission mechanism 6 includes two spaced apart and correspondingly disposed between the positioning seat 61 and the lens holder unit 67' to thereby enable the lens carrier 62. It can be stably connected in the position of the seat 61, but the number of the limit unit it 67 is not limited thereby, even if only one limit unit 67 is set, the 仏 stomach is still 67 The function of interlocking the lens carrier 62 can be achieved by the 65 push. Or ° at the same time sigh more than two limit units 67, the same can be simultaneously pushed by the 1320102 the rear lock block 65 to interlock the lens carrier 62 displacement. It is worth mentioning that the (four) lock block 65 has a recessed recess 652 recessed at an inner circumferential surface 651 (see FIG. 3) at two intervals, and the two recessed recesses respectively correspond to the limiting unit 67. The second follower portion 672 is provided for the two followers: 672 protrudes from the positioning position of the positioning seat 61, and the rear cavity lock block 65 is in a state of being stuck with the two follower portions 672. The structural characteristic that the two driven ports P 672 are restricted by the two sliding slots 671 and cannot be rotated, the bottom latching block 65 can not be rotated relative to the positioning seat 61 to reach the rear latching block 65. When the adjustment knob 66 is screwed, it only moves up and down in the axial direction. Referring to FIG. 3 and FIG. 4, FIG. 4 is a side exploded view of the configuration of the lens barrel unit 4, the stage 5 and the focus transmission mechanism 6. Preferably, the adjustment knob 66 is provided. The inner annular surface 661 defines an inner threaded section 662, and an outer peripheral surface 653 of the rear latching block 65 defines an outer threaded section 654 that is threaded and pivoted relative to the inner threaded section 662, and is preferably implemented. In the example, the pitch of the inner and outer thread segments 662 and 654 is 〇·5 cm. Of course, the pitch value can also be changed according to the actual application, and is not necessarily limited to 〇.5. The stage 5 includes a pair of The platform body 51 on the adjustment knob 66, a pair of lenses 63 that should be focused on the transmission mechanism 6 are disposed on the viewing window 52 of the platform body 51, and a transparent glass mounted on the platform body 51 to cover the window σ 52 Slice 53. 5 is a partial cross-sectional view of the present invention. Preferably, the adjusting knob 66 has a rotating portion 663 extending downward from the rotating portion 663 and accommodating under the bearing portion 322 of the supporting base 32. The pivoting portion 664, and a 10 1320102 are spaced apart from the lower pivoting portion 664 and extend upward from the rotation (4) (6) and are received by the upper pivoting portion of the stage 5 around the outer peripheral surface of the lower pivoting portion and The recessed portion forms a lower ring groove 666. The adjusting knob 66 is rotatably coupled to the retaining portion 322 and inserted into the lower ring groove (10). The base unit 3 is connected to the photo frame. Similarly, an outer circumferential surface of the upper pivot portion 665 is recessed to form an upper ring groove 667, and the stage 5 is disposed through the platform body 51 by a plurality of pins and is inserted and received.
該上環槽667内的限位螺絲9，呈可繞轉地與該調節旋鈕 66相樞接。 參閱圖2’該畫面顯示裝置8則包括一與該對焦傳動機 構6相間隔地裝設在該基座單元3的底座31内的感光元件 81、相間隔地安裝在該輔助臂34的一顯示器模組82，及一 操作鍵模組83，該顯示器模組82是與該感光元件81相電 連接，及該操作鍵模組83是與該顯示器模組82電連接而 可用以無作與設疋該顯示器模組82。其中，還可依設計需The limiting screw 9 in the upper ring groove 667 is pivotally connected to the adjusting knob 66. Referring to FIG. 2, the screen display device 8 includes a photosensitive element 81 mounted in the base 31 of the base unit 3 spaced apart from the focus transmission mechanism 6, and a display mounted on the auxiliary arm 34 at intervals. a module 82 and an operation key module 83. The display module 82 is electrically connected to the photosensitive element 81, and the operation key module 83 is electrically connected to the display module 82 to be used. The display module 82. Among them, it can also be designed according to the needs
求與使用目的而採用CCD(Charge Coupled Device，感光箱 合元件）或 CMOS(Complementary Metal-Oxide Semicoductor ，互補性氧化金屬半導體）作為該感光元件81。 參閱圖2與圖5,欲觀察一物件1〇〇時，是先將該物件 100的被觀察面101朝下放置於該載物台5的透明玻片53 上，並開啟該照明單元7 ’使光線通過該透明玻片53、該 鏡片63及該鏡筒單元4投射至該感光元件81，以提供足夠 觀察的光源，由於該調節旋鈕66是受該等限位螺絲9限位 而呈無法上下移動地樞接於該支撐座32的承載部322,及 11 1320102 該後腔鎖塊65受該二從動部672限制而無法繞該定位座61 轉動，因此，轉動該調節旋鈕66時，該内螺紋段662會相 對該後腔鎖塊65的外螺纹段⑹在原地螺繞，續由κ 傳動的方式驅使該後腔鎖塊65隨該調節旋紐66的不同轉 向分別沿該軸向X向上或向下螺動。 當該後腔鎖塊65向上螺動時，該彈性元件64會向上 頂抵使該鏡片載座62㈣該定位座61上移，並帶動該鏡 片63靠向該載物台5移動，同時該二從動部672也受連動 而分別沿該二滑槽671移動而值卡接於該後腔鎖塊65，且 該鏡片載座62會藉由該後腔鎖塊65@向下麼抵力與該彈 性元件64的向上頂抵力而獲得定位。當該後膛鎖塊^向 下螺動時’則會壓抵該二從動部672沿該二滑槽671向下 移動’以連動該鏡片載座62相對該定位座Η下移並向下 墨縮該彈性元件64,同時，帶動該鏡片63遠離該載物台5 移動，同樣可藉由該彈性元件64與該後腔鎖塊&之間的 反向作用力使該鏡片載座62獲得定位。 因此，利用該調節旋鈕66與該後膛鎖塊65相螺接的 結構’及該調_旋紐66可原地燒轉但無法軸向移動，與該 後腔鎖塊65可轴向移動但無法被轉動的特性，就可使該後 遽鎖塊65隨該調節旋赵66的轉動相對該定位座轴向位 移，最終可連動該鏡片63靠近或遠離該載物台5移動 到可調整焦距的使用目的。 精確調整:t距後，就可以透過該感光元件81接收該物 件1〇0被觀察面101的影像並傳送至該顯示器模組82呈現 12 1320102 出來’配合使用該操作鍵模組83還可將影像作進一步的處 理以利於多方面與更細微的觀察。 歸納上述，本發明可微調對焦的顯微鏡2可獲致下述 的功效及優點，故確實能達到本發明的目的： 本發明利用該調節旋鈕66與該後膛鎖塊65間的螺紋 傳動就可依序地連動該從動部672、該鏡片載座62,再配 合該彈性元件64的彈性作用力，就可帶動該鏡片63相對 該載物台5移動而實現調焦的目的，由於該調節旋鈕66轉 動一圈時，該後膛鎖塊65只會位移一個螺距，加上該螺紋 傳動結構的螺距很小，即使該調節旋鈕66轉動很大的角度 ，該後膛鎖塊65的移動距離也很小，終能使該鏡片63相 對該載物台5微調移動而可較精確地調焦以獲得清晰的影 像’使本發明相對具有容易調整，與微調效果較佳的特性 與優點。 值得說明的是，藉由加大該内、外螺紋段呢、…的 螺圈長度或縮小其螺距還可再進一步提升微調效果。 准以上所述者，僅為本發明之一較佳實施例而已，當 不能以此限定本發明實狀範圍，即大凡依本發明申請專 利範圍及發明說明内容所作之讳留认枯 合所作之簡單的等效變化與修飾皆 仍屬本發明專利涵蓋之範圍内。 【圖式簡單說明】 圖1疋力部剖視圖，說明現有的一顯微鏡的傳動結 構》 圖2是一立體組合圖， 圍說明本發明可微調對焦的顯微 13 1320102 鏡一較佳實施例； 圖3是一局部立體分解圖，說明該較佳實施例的一載 物台、一對焦傳動機構與一鏡筒單元的配置情形； 圖4是一不完整的側視分解圖，說明該較佳實施例的 該載物台、該對焦傳動機構與該鏡筒單元的配置情形；及 圖5是一局部剖視圖，說明配合該較佳實施例的對焦 傳動機構調整該載物台與該鏡片間的距離的情形。As the photosensitive element 81, a CCD (Charge Coupled Device) or a CMOS (Complementary Metal-Oxide Semiconductor) is used for the purpose of use. Referring to FIG. 2 and FIG. 5, when an object 1 is to be observed, the observed surface 101 of the object 100 is first placed on the transparent glass 53 of the stage 5, and the illumination unit 7' is turned on. Light is transmitted through the transparent glass plate 53, the lens 63 and the lens barrel unit 4 to the photosensitive element 81 to provide a light source for observation. Since the adjustment knob 66 is limited by the limit screw 9 The rear cavity lock block 65 is pivotally connected to the support portion 322 of the support base 32, and 11 1320102. The rear cavity lock block 65 is restricted by the two follower portions 672 and cannot rotate around the positioning seat 61. Therefore, when the adjustment knob 66 is rotated, The internal thread segment 662 is screwed in place with respect to the externally threaded section (6) of the rear cavity lock block 65, and is driven by the κ transmission to drive the rear cavity lock block 65 along the axial direction of the adjustment knob 66 respectively. X is screwed up or down. When the rear cavity lock block 65 is screwed upward, the elastic member 64 will abut upward to move the lens carrier 62 (4) up the positioning seat 61, and drive the lens 63 to move toward the stage 5, and the second The follower portion 672 is also moved and moved along the two sliding slots 671 to be latched to the rear cavity lock block 65, and the lens carrier 62 is biased by the rear cavity lock block 65@ The elastic member 64 is biased upward to obtain positioning. When the rear shackle block is screwed down, it will be pressed against the two follower portions 672 to move downward along the two sliding slots 671 to interlock the lens carrier 62 to move downward and downward with respect to the positioning seat. The elastic member 64 is inked, and at the same time, the lens 63 is moved away from the stage 5, and the lens carrier 62 can also be driven by the opposing force between the elastic member 64 and the rear cavity lock block & Get positioned. Therefore, the structure of the adjustment knob 66 that is screwed to the rear lock block 65 and the adjustment knob 66 can be burned in place but cannot move axially, and the rear cavity lock block 65 can move axially but The inability to be rotated allows the rear latch block 65 to be axially displaced relative to the positioning seat with the rotation of the adjustment knob 66, and finally the lens 63 can be moved to or near the stage 5 to adjust the focal length. Purpose of use. Accurate adjustment: After the distance t, the image of the object 1〇0 observed surface 101 is received through the photosensitive element 81 and transmitted to the display module 82 to present 12 1320102. 'With the operation key module 83, the operation key module 83 can also be used. The image is further processed to facilitate multiple aspects and more subtle observations. In summary, the microscope 2 for fine-tuning the focus of the present invention can achieve the following functions and advantages, so that the object of the present invention can be achieved: The present invention utilizes the screw drive between the adjustment knob 66 and the rear latch block 65. The follower portion 672 and the lens carrier 62 are coupled to the elastic force of the elastic member 64 to drive the lens 63 relative to the stage 5 to achieve focusing. When one rotation of the 66, the rear lock block 65 is only displaced by a pitch, and the pitch of the thread transmission structure is small, even if the adjustment knob 66 is rotated by a large angle, the moving distance of the rear lock block 65 is also It is very small, and finally the lens 63 can be finely adjusted relative to the stage 5 to be more accurately focused to obtain a clear image. The invention has relatively good characteristics and advantages of easy adjustment and fine adjustment. It is worth noting that the fine adjustment effect can be further enhanced by increasing the length of the inner and outer thread segments, or reducing the pitch thereof. The above is only a preferred embodiment of the present invention, and the scope of the present invention cannot be limited thereto, that is, the scope of the patent application and the description of the invention are generally Simple equivalent changes and modifications are still within the scope of the invention. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a cross-sectional view showing a transmission structure of a conventional microscope. FIG. 2 is a perspective assembled view showing a microscopic 13 1320102 mirror of the present invention. 3 is a partial exploded view showing the arrangement of a stage, a focus transmission mechanism and a barrel unit of the preferred embodiment; FIG. 4 is an incomplete side elevational view showing the preferred embodiment. Example of the stage, the arrangement of the focus transmission mechanism and the barrel unit; and FIG. 5 is a partial cross-sectional view illustrating the adjustment of the distance between the stage and the lens by the focus transmission mechanism of the preferred embodiment The situation.
14 1320102 【主要元件符號說明】 2 ............顯微鏡 3 ............基座單元 31 ..........底座 32 ..........支撐座 321 ........座筒部 322 ........承載部 33 ..........活動臂 331 ........關節臂部 332 ........伸縮臂部 333 ........萬向接頭部 34 ..........輔助臂 4 ............鏡筒單元 5 ............載物台 51 ..........平台本體 52 ..........視窗口 53 ..........透明玻片 6 ............對焦傳動機構 61 ..........定位座 62 ..........鏡片載座 63 ..........鏡片 64 ..........彈性元件 65 ..........後膛鎖塊 651 ........内周面 652 ........卡制凹口 653 ........外周面 654 ........外螺紋段 66 ..........調節旋鈕 661 ........内環面 662 ........内螺紋段 663 ........轉動部 664 ........下樞接部 665 ........上樞接部 666••…··下環槽 667 ........上環槽 67 ..........限位單元 671 ........滑槽 672 ........從動部 7 ............照明單元 8 ............畫面顯示裝置 81 ..........感光元件 82 ..........顯示器模組 83 ..........操作鍵模組 9 ............限位螺絲 100 ........物件 101 ........被觀察面 X...........抽向 1514 1320102 [Explanation of main component symbols] 2 ............Microscope 3 ............Base unit 31 .......... Base 32 .......... support seat 321 ........ housing portion 322 ........ bearing portion 33 .......... movable arm 331 ........ articulated arm 332 ........ telescopic arm 333 ........ universal joint portion 34 ..... auxiliary arm 4 ............Lens tube unit 5............stage 51 ..... platform body 52 ..... .....View window 53 ..........transparent slide 6............focus drive mechanism 61 .......... positioning seat 62 ..........Lens carrier 63 ..........lens 64 ..........elastic element 65 .......... Rear shackle block 651 ........ inner circumferential surface 652 ........ carding notch 653 ........ outer circumferential surface 654 ........ Thread segment 66 ..........Adjustment knob 661 ........ Inner ring surface 662 ........ Internal thread segment 663 ........ Rotating portion 664 ........ lower pivoting part 665 ........ upper pivoting part 666 ••...·· lower ring groove 667 ........ upper ring groove 67 ... .......limit unit 671 ........ chute 672 ........ driven portion 7 ......... lighting unit 8 . ........... screen display device 81 .......... Photosensitive element 82 .......... Display module 83 .......... Operation key module 9 ........ ....Limiting screw 100 ........object 101 ........The observed surface X...........