201224558 六、發明說明： 【發明所屬之技術領域】 本發0祕有關於-種鏡頭排氣結構。 【先前技術】 習知之光學鏡頭組係於一鏡筒中組襄一至數個鏡片以供 裝驗相機或其他各種光學設備使用，其中，為將鏡片穩固地 固疋於鏡筒中’鏡>;與鏡筒之間係塗佈有膠體，用以將鏡片與 鏡筒膠合。 ~ 然而’此種光學鏡頭於一般環境中卻有對焦效果不佳的問 題更明確地說’鏡片與鏡片之間或鏡片與光學設備或鏡座之 間存有許多各自密閉的空隙，各個空隙中充滿空氣’當外界環 境溫度升高或降低時，空隙中的空氣將受溫度影響而膨服或收 縮’進而使空氣擠壓各個鏡片或光學設備，改變各個鏡片之間 的焦距’缝光學鏡_成像性纽變，使鏡哺確度降 低，光學設備所獲得的成像品質亦隨之下降。 為克服上述問題，業界多於鏡頭預設處鑽孔，做為氣體排 出之茂氣通道，於組裝後縣之填_防止絲進人鏡頭，然 而，此種躲健供生纽料進行魏，碰提高加工組裝' 的複雜度，亦未解決上述問題，至於鏡頭組裝環境過程中，因 溫昇問題造成綱内部殘留氣體膨脹，更導致組裝後之光學鏡 頭容易有焦距偏移的問題。 另外就吾人所知，亦有業界於鏡筒内壁面額外加工一透氣 201224558 =排_内部之水氣，然而，做法需於原本的鏡筒 _車銑魏槽，使得^程料複，崎錢柄加；再者 早一方向設計之魏流道，會糊_動方向及速度，整體 而吕，目鮮界對於鏡_部氣體之排出設計，皆未臻理相。 【發明内容】 ' … 本發明之主要目的在於提供—種鏡頭排氣結構㈠，可 避免或減少溫度對其成像性質的影響。201224558 VI. Description of the invention: [Technical field to which the invention pertains] The present invention relates to a lens exhaust structure. [Prior Art] A conventional optical lens assembly is used to assemble one to several lenses in a lens barrel for use in an inspection camera or other various optical devices, wherein the lens is firmly fixed in the lens barrel 'Mirror>; A glue is applied between the lens barrels to glue the lens to the lens barrel. ~ However, the problem of such an optical lens in the general environment is that the focus is not good. More specifically, there are many closed gaps between the lens and the lens or between the lens and the optical device or the lens holder. Filled with air 'When the ambient temperature rises or falls, the air in the gap will be affected by the temperature to expand or shrink' and then the air will squeeze the individual lenses or optical devices, changing the focal length between the lenses. The imaging variability reduces the lens feeding accuracy and the imaging quality obtained by the optical device also decreases. In order to overcome the above problems, the industry has more holes than the preset of the lens, as a gas channel for gas discharge, after the assembly, the county fills in the _ to prevent the wire from entering the lens, however, this kind of hiding health feeds the material, Wei, The complexity of the process assembly has not solved the above problems. As for the lens assembly environment, the internal residual gas expands due to the temperature rise problem, which leads to the problem that the assembled optical lens is prone to focal length shift. In addition, as far as I know, there is also an industry that additionally processes a breathable inner wall of the lens barrel 201224558 = row _ internal water gas, however, the practice needs to be in the original lens tube _ car milling Wei trough, so that ^ Cheng material complex, Saki money The shank is added; in addition, the Wei flow channel designed in the early direction will paste the direction and speed of the movement, and the overall direction will be unreasonable for the discharge design of the mirror. SUMMARY OF THE INVENTION The main object of the present invention is to provide a lens exhaust structure (1) which can avoid or reduce the influence of temperature on its imaging properties.
為達成上述目的，本發明提供.一種鏡頭排氣結構㈠， 包括有一鏡筒與一鏡片組。 -亥鏡筒具有-内表面與一外表面，該内表面圍構有—容置 空間，該鏡筒形成有-第—開口與—第二開口，該第—開口與 該第二開口分雜_鏡_向方向上的兩端，該第—開口及 該第二開口分別與該容置空間相連通，供絲自該第-開口進 入該容置空間並自該第二開口射出。 一鏡片組，包含至少一鏡片，該鏡片容置於該容置空間， 該鏡片具有一周緣，該周緣與鏡筒内表面間保有一逃氣流 道’該逃氣流道第一端並與第一開口相連通；以及 一论、封膠層’係設置在靠近第二開口之鏡片組與鏡筒接 合處’該密封膠層形成有一透氣區，該透氣區恰與逃氣流道 第二端相連通。 藉此’本發明所提供之鏡頭排氣結構（一）於環境溫度改 變時，可供空氣經由密封膠層預留之透氣區進入鏡筒容置空 201224558 間’再由該容置空間之逃氣流道排至外部，避免鏡筒之空氣因 熱膨服而推擠鏡片或鏡筒’而可將鏡筒及鏡片維持在預設位 置，確保光學鏡頭之最佳成像焦距、品質功效。 【實施方式】 以下僅以實施例說明本發明可能之實施態樣，然並非用以 限制本發明所欲保護之範疇，合先敘明。 請參考圖1至圖3，本發明提供一種鏡頭排氣結構（一）， 包括有一鏡筒1、一鏡片組及一密封膠層4。 該鏡筒1具有一内表面11與一外表面12 ,該内表面u 圍構有-容置空間，其中，該鏡筒丨於軸向方向上的兩端分別 形成有-第’口 13與-第二開口 14，該二開口分別與該容 置空間相連通，可供光線自該第一開口 13進入並自第二開口 14射出，較佳者’該外表面12設有螺紋。更明確地說，該鏡 筒1具有-底板15與-侧板16，該底板15形成有該第—開 口 13 ’該侧板16具有該内表面n與該外表面12，由該側板 16圍構出該第二開口 14，並由該侧板16及該底板15於該第 開口 13與該第一開口 14之間圍構出該容置空間。 該鏡片組包括有-至多個鏡片21，其中可包括有遽鏡與 光學透鏡，各個鏡>；2卜尤其是光學透鏡可具有二光學表面 211與徑向延伸之固定部212，鏡片組另包含可夾設於各個鏡 片21間有環形之遮光板22、墊片23與具剪口 214之一固定 % 24 ’若具遽鏡之鏡筒，如圖w所示，更包含設置於固定環 201224558In order to achieve the above object, the present invention provides a lens exhaust structure (1) comprising a lens barrel and a lens group. The hai barrel has an inner surface and an outer surface, the inner surface enclosing an accommodating space, the lens barrel is formed with a first opening and a second opening, and the first opening is separated from the second opening The first opening and the second opening are respectively connected to the accommodating space, and the wire enters the accommodating space from the first opening and is emitted from the second opening. a lens group comprising at least one lens, the lens is received in the accommodating space, the lens has a peripheral edge, and an escape air passage is maintained between the circumference and the inner surface of the lens barrel. The openings are connected; and the sealant layer is disposed at a junction of the lens group and the lens barrel adjacent to the second opening. The sealant layer forms a gas permeable region that is in communication with the second end of the escape channel. . By the lens exhaust structure provided by the present invention (1), when the ambient temperature is changed, the air is allowed to enter the lens barrel through the venting area reserved by the sealant layer, and the space is escaped from 201224558. The airflow path is discharged to the outside to prevent the air of the lens barrel from pushing the lens or the lens barrel due to thermal expansion, and the lens barrel and the lens can be maintained at a preset position, thereby ensuring the optimal imaging focal length and quality effect of the optical lens. [Embodiment] The following is a description of the possible embodiments of the present invention, and is not intended to limit the scope of the present invention. Referring to FIG. 1 to FIG. 3, the present invention provides a lens exhaust structure (1) including a lens barrel 1, a lens group and a sealant layer 4. The lens barrel 1 has an inner surface 11 and an outer surface 12, and the inner surface u defines an accommodating space, wherein the two ends of the lens barrel are formed with a - mouth 13 and a second opening 14 respectively communicating with the accommodating space for allowing light to enter from the first opening 13 and exit from the second opening 14, preferably the outer surface 12 is provided with a thread. More specifically, the lens barrel 1 has a bottom plate 15 and a side plate 16 which is formed with the first opening 13'. The side plate 16 has the inner surface n and the outer surface 12, surrounded by the side plate 16. The second opening 14 is formed, and the accommodating space is defined by the side plate 16 and the bottom plate 15 between the first opening 13 and the first opening 14. The lens set includes - to a plurality of lenses 21, which may include a frog mirror and an optical lens, and each mirror>; in particular, the optical lens may have two optical surfaces 211 and a radially extending fixing portion 212, and the lens group The utility model comprises a light-shielding plate 22 which can be sandwiched between the respective lenses 21, a spacer 23 and a fixed one of the cut-offs 214. If the lens barrel has a mirror, as shown in the figure w, it further comprises a fixing ring. 201224558
24外側之—細上之雜25 (解面麵）。神鏡片21容 置空間’各該鏡片21具有一周緣213,各_13 之-p與該内表面u之截面輪勒目同，使該周緣213抵頂於 該内表面11，更明確地說，各該鏡片21可形成有剪口叫， 3表面η則可形成與剪σ214對應之截面轉，使鏡片21 地與鏡筒1相互固定’另外，各鏡片之周緣213與鏡 2一面11之壁面間保有一逃氣流道a，該逃氣流道Α具有 第一端及第二端，其第一端則與鏡筒之第一開口 Η連通。又 上述各鏡片2!之固定部212可藉由形成有祕表面，或（及） =鏡片一:緣213形成細微之圓弧導角215，或⑷各鏡片 /口疋％<24之剪口 214 ’令氣體得經由粗糖表面或（及） 圓弧導角215而連通至逃氣流道A，最后由第„ 再^參照圖2、2]及圖3所示，該密封膠層4，係待鏡 H又於I置空間預設位置後’利用點膠手段環形設置在靠 f第二開口之鏡片組與鏡筒接合處’更明物置，料圖2 I 處鏡之鏡筒實絲樣者，㈣㈣4職於鏡版最靠近第二 ===環24外表面與鏡筒接合處，若為圖2·1安裝紐 =精施態樣者，則設於最靠近第二開口處之遽鏡（或平面 =外辑，細職_件接合處縫 '、同時亦達到鏡片_定於鏡筒容置空間目的。上述環咬於 鏡碩與鏡片組接合處之密封膠層4，_設有—透氣區Μ，該 41恰與逃氣流道A第二端相連通，透氣區之實施態樣， 201224558 可以如圖3所示於點膠過程中保留一缺口而形成一〔形密封膠 層，亦可如圖3-1採間隔點膠模式而形成多個缺口之複數透氣 區態樣之密封膠層，或者點膠呈兩個半圓形，而形成二缺口態 樣透氣區。 藉此’本發明之鏡筒可透過具螺紋之外表面結合圖2所示 之一鏡座3，將鏡筒與鏡座相互組裝，並供組裝於各式光學設 備中，如相機、攝影機、紅外線感測器或顯微鏡等，供接收光 線並進行成像使用。 鏡筒1與鏡座3組裝成為鏡頭後，部份空氣會滯留於鏡座 3與鏡片組間所圍構之—容室B内，該容室B之空氣則可經第 二開口、密封膠層之透氣區41流、經鏡筒之容置空間，該容置 空間内之空氣則透過鏡片之粗縫表面或（及）圓孤導角或（及） 剪口而導人逃氣流道A ’最后經逃氣流道魏至第—開口排出 ’以利後續鏡筒、鏡座絲於光學設備過程，縱使容室B 中仍存留有較多的氣體，亦可經由上述路徑聽。#環境溫度 改變而使氣體膨脹或收縮時，可將氣體導人或排出，進一步避 免氣體擠壓鏡片、鏡筒或鏡座，而可將鏡片、鏡筒與鏡座保持 於預定位置，維持較佳的、較準確的光軸對焦情形。 除此之外，本發明藉由鏡片組與鏡筒接合處之密封膠層保 留一透氣區，再配合鏡>；與鏡筒内表面間形成—逃氣流道創 意’即可藉由鏡片間之粗面、圓弧導角等，令透氣區之開 設位置縱然與容置空間之逃氣流道非位於同—直線位置（當然 201224558 亦可為同一直線位置），亦能順利讓鏡筒内部殘留氣體排出優 ----田仕一迓氣區方向進入鏡筒容置空 ，氣體，_經逃氣流_，_氣結構設計完全: 序'於财魏槽，㈣私μ域筒加工程 功效=件下，織_部__效，實繼進步 【圖式簡單說明】 圖1為本發明之立體分解圖。 圖1 2為本發明之剖面圖。 圖2-1為本發明另一鏡筒實施態樣剖面圖 圖3為本發明之前視圖。 圖3-1為本發明另一實施例之前視圖。 【主要元件符號說明】24 outside - fine on the 25 (solution surface). The lens 21 accommodates a space 'each lens 21 has a peripheral edge 213, and the -p of each _13 is identical to the cross-section of the inner surface u, so that the peripheral edge 213 abuts against the inner surface 11, more specifically Each of the lenses 21 can be formed with a cut-out, and the surface η can form a cross-section corresponding to the shear σ214, so that the lens 21 and the lens barrel 1 are fixed to each other. In addition, the peripheral edge 213 of each lens and the side of the mirror 2 are 11 There is an escape air passage a between the wall surfaces, and the escape air passage has a first end and a second end, and the first end is connected to the first opening of the lens barrel. Further, the fixing portion 212 of each of the lenses 2! can be formed by forming a secret surface, or (and) = lens one: edge 213 to form a fine circular arc angle 215, or (4) each lens/mouth 疋% <24 shear Port 214' allows the gas to communicate to the escape channel A via the surface of the raw sugar or (and) the arcuate angle 215, and finally the sealant layer 4, as shown in Fig. 2, 2 and 3, After the mirror H is placed in the space preset position of the I space, 'the dispensing point is set by the dispensing means to the joint of the lens group of the second opening of the f and the lens barrel', and the mirror tube of the mirror of the mirror of FIG. In the case of (4) (4) 4, the mirror is closest to the second === the outer surface of the ring 24 and the junction of the lens barrel. If the installation is in the form of Figure 2·1, it is placed closest to the second opening.遽 ( (or plane = external series, fine job _ joint joint seams), but also reach the lens _ set in the lens barrel accommodation space. The above ring bite at the joint between the mirror and the lens group seal layer 4, _ Having a venting zone Μ, the 41 is in communication with the second end of the escaping air passage A, and the embodiment of the venting zone, 201224558 can be retained in the dispensing process as shown in FIG. And forming a [shaped sealant layer, as shown in FIG. 3-1, a plurality of gaps are formed in a plurality of notched portions of the sealant layer, or the dispensing is in the form of two semicircles, and two The lens barrel of the present invention can be assembled into various optical devices through a mirrored outer surface and a lens holder 3 shown in FIG. 2, and the lens barrel and the lens holder are assembled to each other. For example, a camera, a camera, an infrared sensor, or a microscope, for receiving light and for imaging. After the lens barrel 1 and the lens holder 3 are assembled into a lens, part of the air is retained in the frame between the lens holder 3 and the lens group. In the chamber B, the air in the chamber B can flow through the second opening, the permeable region 41 of the sealant layer, and the space accommodated in the lens barrel, and the air in the accommodating space passes through the rough joint of the lens. Surface or (and) round orphan angle or (and) cut and lead to escape airflow path A 'finally escape airflow path Wei to the first - opening discharge 'to facilitate the subsequent lens barrel, mirror wire in the optical device process, even There is still more gas in the chamber B, and it can also be heard through the above path.# When the temperature changes and the gas expands or contracts, the gas can be guided or discharged, further preventing the gas from squeezing the lens, the lens barrel or the lens holder, and maintaining the lens, the lens barrel and the lens holder at a predetermined position, and maintaining the better. In addition, the present invention maintains a gas permeable region by the sealant layer at the junction of the lens group and the lens barrel, and then cooperates with the mirror to form an escape between the inner surface of the lens barrel. The airflow path idea can be made by the rough surface of the lens, the arc guide angle, etc., so that the opening position of the venting area is not in the same straight line position as the escape airway of the accommodating space (of course, 201224558 can also be the same straight line position. ), can also smoothly let the residual gas inside the lens barrel discharge excellent ----- Tian Shiyi gas direction into the lens barrel accommodation, gas, _ escaped airflow _, _ gas structure design completely: Preface 'Yu Caiwei Slot, (4) private μ domain tube plus engineering function = under the piece, weaving _ part _ _ effect, the actual progress [schematic description] Figure 1 is a perspective exploded view of the present invention. Figure 12 is a cross-sectional view of the present invention. Figure 2-1 is a cross-sectional view showing another embodiment of the lens barrel of the present invention. Figure 3 is a front view of the present invention. Figure 3-1 is a front elevational view of another embodiment of the present invention. [Main component symbol description]
214 :剪σ 215 .圓弧導角 22 遮光板 23 墊片 24 固定環 25 •據鏡 3 : 鏡座 4 : 密封膠層 1 :鏡筒 2 11.内表面 12 :外表面 13:第一開口 14 :第二開口 is.底板 16 :側板 ·鏡片 201224558 211 :光學表面 212 :固定部 213 :周緣 41 :透氣區 A :逃氣流道 B :容室214: Shear σ 215. Arc guide angle 22 Shading plate 23 Shim 24 Fixing ring 25 • Mirror 3: Mirror base 4: Sealant layer 1: Lens barrel 2 11. Inner surface 12: Outer surface 13: First opening 14: second opening is. bottom plate 16: side plate·lens 201224558 211: optical surface 212: fixing portion 213: peripheral edge 41: venting area A: escape air passage B: chamber