TW533332B

TW533332B - Iris structure

Info

Publication number: TW533332B
Application number: TW91105002A
Authority: TW
Inventors: Yin-Fa Tu; Chih-Wen Chen; Huang-Cheng Chiang; Gan-Chieh Chang
Original assignee: Ind Tech Res Inst
Priority date: 2002-03-15
Filing date: 2002-03-15
Publication date: 2003-05-21

Abstract

The present invention provides an iris structure comprising a first guiding member, a driving spiral rod, a first iris diaphragm base and a second iris diaphragm base. The driving spiral rod has a first spiral end and a second spiral end with a screw-thread direction opposite to the first spiral end. The opposite two ends of the first iris diaphragm base are respectively pivotally connected to the first guiding and engaged with the second spiral end, and both respectively have a first light penetrating hole and a second light penetrating hole opposite with each other and symmetric with respect to the light axis of a camera. When rotating the driving spiral rod, the first and second iris diaphragm bases are driven to move close or apart along the light axis of the camera under the guiding of the first guiding member, thereby regulating the aperture formed by the light axis of the camera corresponding to the first and second light penetrating holes, thereby controlling the iris aperture and the amount of incoming light for the camera.

Description

圓到其輪廓任 533332 五、發明說明（1) 【發明領域】本發明係為一種光圈結構，應用於相機，可定量微段控制光圈口徑之光圈結構。【發明背景】相機之鏡頭是由光圈（I r i s )結構控制進光亮度改變下，光圈結構之透光口徑大小也就必整’如此一來，底片才得以獲得較佳的曝光量結構對取像品質可謂是具有重大的影響，基於發展出多種控制鏡頭進光量之光圈結構：如中華民國專利公告號第4 3 1 6 0 3號中所揭機複合式光圈快門裝置」，係以一葉片（i r i s —、交進光量，透過開設多種口徑之圓孔於此葉 ^ f的旋轉’使圓孔對應到鏡頭而控制鏡頭之 2疋在口徑大之圓孔對應到鏡頭時，鏡頭之進少而在口控小之圓孔對應到鏡頭時，鏡頭之二構f此光圈值之段數端視圓孔的數目而定，越多卩，有下列數種缺失·· 1.光圈值之段數越高二至二，光圈結構的體積越大，所以一般光圈矣像，=段的光圈值。2·在變換不同口徑之圓孔面之方^ ^結構僅能用在靜態取像。3 ·因垂直時會產:二II自由鈿（也就是光軸方向），所以曰產生净動的情形。如苐 ΙΑ、 ΐβ、.. 形，因6甘w β 1 c圖」所示，理想的光圈司其4何中特別是一種量，在環境須加以調，所以光圈此，目前已露之「照相 diaphragm) 片，且配合進光量，也光量會增進光量會減然此種光圈時（圓孔數 ?構僅提供時無法取葉片移動平葉片在移動口徑為圓的最大長度 533332 五、發明說明（2) (L)比上最小長度（I)皆為定值1，而其它圖形如：正三角形為1.5，正五邊形為124，正六邊形為1.15，正八邊形則為1. 0 8等等......，由此可知多邊形之比值將較為趨近圓形的比值，而如中華民國專利公告號第3 6 7 0 5 0號中所揭露之「鏡頭之改良多片式光圈」，係使多葉片（約五至六片以上）構成趨近圓形之多邊形，且這些葉片設置於鏡頭處，當各葉片分別繞其中心轴同時旋轉時，可調節光圈結構的口徑，且口徑的變化範圍也較大，並可用於動態取像，然此種光圈結構卻有下列數種缺失：1.因各葉片僅構成多邊形的一邊，所以需要多片葉片，如此一來，卻使得光圈結構更加複雜、製作和組裝的困難度增高、且成本昂貴。2.因光圈口徑的變化量與葉片旋轉量之關係為非線性，因此不易做定量微段控制。3.因垂直葉片移動平，面之方向為其自由端（也就是光軸方向），所以葉片在移動時會產生浮動的情形。4.因葉片之剛性不足，所以當其被直接推動時易產生赵曲。至於另一種可用於動態取像之光圈結構則由曲柄構成，且揭露於美國專利號第4 7 9 7 7 0 0號及第4 8 8 4 0 9 1號專利案中，此兩專利案包括有曲柄及兩具有開口之葉片，且透過曲柄驅動此兩葉片作反向之直線運動，即可調節光圈口徑，因此較上述光圈結構所需之葉片數少，結構簡單，且口徑的變化範圍也較大，然此種光圈結構仍有下列數種缺失：1.因曲柄長度的限制，光圈結構的體積無法縮小。2. 可定量微段控制，但所需電路複雜。3.因垂直葉片移動平Circle to its outline 533332 V. Description of the invention (1) [Field of the invention] The present invention is an aperture structure, which is applied to a camera, and it can quantitatively control the aperture diameter of the aperture structure in micro-segments. [Background of the Invention] The lens of the camera is controlled by the aperture structure and the brightness of the aperture structure changes. The aperture diameter of the aperture structure must be adjusted. In this way, the negative film can obtain a better exposure structure. The image quality can be described as having a significant impact, based on the development of a variety of aperture structures that control the amount of light entering the lens: as in the Republic of China Patent Bulletin No. 4 3 1 6 0 3 "combined aperture diaphragm shutter device", a blade (Iris —, the amount of intersecting light, through the opening of a variety of apertures in this leaf ^ f rotation 'to make the circular aperture corresponding to the lens and control the lens 2 疋 When the large aperture circular aperture corresponds to the lens, the lens has less When the small hole of the mouth control corresponds to the lens, the number of segments of the aperture value of the second structure of the lens depends on the number of circular holes. As the number of holes increases, the following types are missing ... 1. Aperture value segment The higher the number of two to two, the larger the volume of the aperture structure, so the general aperture image, the aperture value of the segment. 2. The square hole surface of the different apertures ^ ^ structure can only be used for static imaging. 3 · Due to vertical production: II II since钿 (that is, the direction of the optical axis), so there is a situation in which there is a net motion. As shown in the shape of 苐 ΙΑ, .β, .., because of the 6 gan w β 1 c figure, the ideal aperture is especially a type of 4 The amount of light must be adjusted in the environment, so the "diaphragm" film has been exposed at the aperture, and with the amount of light, the amount of light will increase, and the amount of light will be reduced. Such apertures (the number of round holes? Blade moving flat blade The maximum length of the moving circle is 533332 V. Description of the invention (2) (L) The minimum length (I) is a fixed value of 1, and other figures such as: regular triangle is 1.5, regular pentagon Is 124, regular hexagon is 1.15, regular octagon is 1. 0 8 and so on. It can be seen that the ratio of polygons will be closer to the ratio of circles, and as the Republic of China Patent Bulletin No. The "improved multi-aperture aperture of the lens" disclosed in No. 3 6 7 0 50 is to make the multi-blades (about five to six or more) form a polygon that is close to a circle, and these leaves are set at the lens. When each blade rotates around its central axis simultaneously, the aperture structure can be adjusted Diameter, and the range of variation of the diameter is also large, and can be used for dynamic image acquisition. However, this aperture structure has the following defects: 1. Because each blade constitutes only one side of a polygon, multiple blades are required. However, it makes the diaphragm structure more complex, making and assembling difficult, and expensive. 2. Because the relationship between the change in the aperture diameter and the blade rotation is non-linear, it is not easy to do quantitative micro-segment control. 3. The vertical blade moves flat, and the direction of the surface is its free end (that is, the direction of the optical axis), so the blade will float when it moves. 4. Due to the lack of rigidity of the blade, it is easy to produce Zhao Qu when it is directly pushed. . As for another aperture structure that can be used for dynamic imaging, it is composed of a crank, and is disclosed in US Patent Nos. 4 79.7 7 0 and 4 8 8 0 0 91. These two patents include There are a crank and two blades with openings, and the two blades are driven to perform a rectilinear linear motion through the crank to adjust the aperture diameter. Therefore, the number of blades required for the aperture structure is smaller, the structure is simple, and the range of the aperture variation is also small. Larger, but this kind of aperture structure still has the following several defects: 1. Due to the limitation of the crank length, the volume of the aperture structure cannot be reduced. 2. Quantitative micro-segment control is possible, but the required circuit is complicated. 3. Flat due to vertical blade movement

533332 五、發明說明（3) 面之方向為其自由端（也就是光軸方向），所以葉片在移動時會產生浮動的情形。4.因葉片之剛性不足，所以需要較高的製作精度，以防止直接推動其時所引起之翹曲。5.因口徑無法趨近圓形，所以取像時會有亮度不均的情形。基於上述，實有必要研發出一種光圈結構，以滿足下列需求：1.葉片的移動能夠更平整、平順。2.減少光圈結構之體積。3.能夠用於動態取像。4. 口徑能趨近圓形，以提南成像品質。【發明之目的及概述】本發明的主要目的即為提供一種光圈結構，以透過簡單之結構設計減少光圈之體積。本發明之次要目的為提供一種光圈結構，以定量微段控制光圈口徑。根據本發明所揭露的光圈結構係包括有第一、二葉片座及驅動結構，其中第一、二葉片座分別位於彼此重疊的平面，且分別具有相向並對稱於光軸之第一、二透光口，當驅動結構驅動第一、二葉片座沿著垂直相機之光軸方向相向或相背移動時，即可調節第一、二透光口的相對相機光轴所形成的孔徑，而控制相機之進光量。為使對本發明的目的、構造特徵及其功能有進一步的了解，茲配合圖示詳細說明如下：【實施例詳細說明】如「第2A、2B圖」所示，根據本發明所揭露的光圈結構，係包括有第一葉片座1 1、第一導引件2 1及驅動螺桿533332 5. Description of the invention (3) The direction of the surface is the free end (that is, the direction of the optical axis), so the blade will float when it moves. 4. Due to the insufficient rigidity of the blade, a higher manufacturing accuracy is required to prevent warpage caused by direct pushing. 5. Because the aperture cannot be rounded, there may be uneven brightness when taking images. Based on the above, it is necessary to develop an aperture structure to meet the following requirements: 1. The blade movement can be smoother and smoother. 2. Reduce the volume of the aperture structure. 3. Can be used for dynamic acquisition. 4. The caliber can be rounded to improve the imaging quality. [Objective and Summary of the Invention] The main object of the present invention is to provide an aperture structure to reduce the volume of the aperture through a simple structure design. A secondary object of the present invention is to provide an aperture structure to control the aperture diameter by a quantitative micro-segment. The aperture structure disclosed according to the present invention includes a first and a second blade seat and a driving structure, wherein the first and the second blade seat are respectively located on a plane overlapping each other, and each has a first and a second lens facing and symmetrical to the optical axis. For the optical port, when the driving structure drives the first and second blade holders to move toward or away from each other along the direction of the optical axis of the vertical camera, the aperture formed by the first and second transparent ports relative to the optical axis of the camera can be adjusted to control The amount of light entering the camera. In order to further understand the purpose, structural features, and functions of the present invention, detailed descriptions are given in conjunction with the drawings as follows: [Detailed description of the embodiment] As shown in "Figures 2A and 2B", the aperture structure disclosed according to the present invention , Including a first blade seat 11, a first guide 21 and a driving screw

533332 五、發明說明（4) 3 1，其中第一導引件2 1為一長柱，且用以限制第一葉片 1 1沿其滑動，驅動螺桿3 1則用以驅動第一葉片座1 有第一螺紋端3 1 1，以與第一葉片座j i嚙合。第一葉片座11具有第一被傳動件ηι、第一導弓丨套工及第一葉片Π3，其中第一被傳動件ιη設於第一葉片 h “I， -ti* rb Ά* βπ θ -ir . lh. 丄 1 1 座並具端其中空内部具有齒形，以與驅動螺桿3丨之第螺钕端3 1 1嚙合，第一導引套1 1 2設於第一葉片座} !相對第二：傳動件111之另一端，且與第一導引件21樞接，而限破一葉片座1 1沿第一導引件2 1滑動，至於第一葉片j j = 一葉片座11承載，具有數個尺寸相異的第一透光口丨丨此第一透光口 1 1 3 1為圓形，可一次以一個第一透光口對應相機之光軸C，而控制相機之進光量。當轉動驅動螺桿3 1時，第一葉片座丨丨被驅動，而一導引件21的引導之下沿著垂直相機之光軸方向移弟調節第一透光口 1131與光軸c之相對位置，進而控制之進光量（由第一透光口 1131所構成之圓形）。栈如「第3A、3B圖」所示’本發明之另一種實施包括有第一葉片座u、第二葉片座12、第一導引\係 131 以動螺桿3卜其中第一導引件？ Ε ^ α ” ^及 Z 1為一長柱’且用以限制货一、二葉片座11、12沿其滑動，t田油01α.,扣.制弟驅驅動螺桿31則用以驅動 2 ’且具有螺紋旋向互為相反之第— 一、二葉片座11 紋端311及第二螺紋端312，且第一螺紋端311與第端312分別與第一、二葉片座U、12响合。第一葉片座11具有第—被傳動件⑴、第螺 '螺紋導弓丨套112533332 V. Description of the invention (4) 3 1, wherein the first guide 21 is a long column and is used to restrict the first blade 11 from sliding along it, and the driving screw 31 is used to drive the first blade seat 1 There is a first threaded end 3 1 1 to engage the first blade seat ji. The first blade seat 11 has a first driven member ηm, a first guide bow 丨 sleeve, and a first blade Π3, wherein the first driven member ιη is provided on the first blade h "I, -ti * rb Ά * βπ θ -ir. lh. 丄 1 1 seat with a hollow end with a tooth profile to mesh with the 3rd neodymium end 3 1 1 of the drive screw 3 丨 the first guide sleeve 1 1 2 is provided on the first blade seat} Relative to the second: the other end of the transmission member 111 is pivotally connected to the first guide 21, and is limited to break a blade seat 1 1 sliding along the first guide 21, as for the first blade jj = a blade seat 11 bearing, has a number of first light transmission ports of different sizes 丨 This first light transmission port 1 1 3 1 is circular, and can control the camera with one first light transmission port corresponding to the optical axis C of the camera at a time When the driving screw 31 is rotated, the first blade seat 丨丨 is driven, and a guide 21 is moved along the direction of the optical axis of the camera to adjust the first light transmitting port 1131 and light. The relative position of the axis c, and thus the amount of incoming light (a circle formed by the first light-transmitting port 1131). The stack is as shown in "Figures 3A and 3B" Species embodiment comprises a first blade holder u, a second blade holder 12, a first guide \ system 131 to move the screw Bu 3 wherein the first guide member? Ε ^ α "^ and Z 1 are a long column 'and are used to restrict the sliding of the first and second blade holders 11, 12 along it, and the field drive screw 31 is used to drive 2' And the first and second blade bases 11 have a ridge end 311 and a second threaded end 312, and the first and second blade ends 311 and 312 are respectively connected with the first and second blade bases U and 12 respectively. The first blade seat 11 has a first-driven member ⑴, a first screw 'threaded guide bow 丨 sleeve 112

533332 五、發明說明（5) 及第—葉片113，JL中筮、士你▲ -端，其中空内部且傳動们11設於第一葉片座11 端3U嚙合，第一導;丨有太齒形，以與驅動螺桿31之第—螺紋傳動件ill之另一ΐ套112設於第一葉片座11相對第—被 .葉片座u沿第丨件21樞接’而限制第葉片座u承載，至於第一葉片⑴被第 131為ν字形。，、有弟一透光口 1131，此第一透光口 ^ t ! J ^ 12^ ^ 121 ' ^ ^ ^ 122 形端，立中空内邻且古弟一傳動件121設於第二葉片座12 端312喷、合，第二°導、/齒^:且與驅動螺桿31之第二螺紋傳動件121之另—端又於/二葉片座12相對第二被二葉片座12沿第—導△與二導引件21樞接’而限制第葉片座U承載，具至於第二葉片_第機光轴C的之第二透光有口與^^透光口 Π31相對並對稱於相、— 先口 1231，此第二透光口 1231為V字 2113卜1231彼此相向。動，時，第一、二葉片座Π、12被驅 , ^ 2 1的引導之下沿著垂直相機之光軸方向相向或相月地移動，以調節第一、二透光口 113卜ΐ23ΐ =相對相機光軸C所形成的孔徑，而控制相機之進光量（由弟—、二透光口 113卜1231所構成之菱形）。如「第4圖」、「第5圖」所示，本發明之又一種實施例，係包栝有第一葉片座U、第二葉片座12、一對葉片座 1 3、1 3 、第導引件2卜第二導引件2 2、驅動螺桿3 1及第8頁 533332 五、發明說明（6) 傳動件41，其中第一導引件2 1為一長柱，且用以限制第一、二葉片座1卜1 2沿其滑動，第二導引件2 2垂直第一導引件2 1，用以限制葉片座1 3、1 3，沿其滑動，驅動螺桿3丄則用以驅動第一、二葉片座1卜i 2，且具有螺紋旋向互為相反之第一螺紋端3 11及第二螺紋端3 1 2，以分別與第一: 二葉片座1卜1 2嚙合，至於傳動件4丨則由驅動螺桿3 ^區動’以用來驅動葉片座13、13，，圖中所示，其為連接驅動螺桿3 1之齒輪。 f 第一葉片座11具有第一被傳動件η丨、第一導引套i工2 及第一葉片113，其中第一被傳動件U1設於第一葉片座η 一端，其中空内部具有齒形，以與驅動螺桿3丨之第一螺紋端311嚙合，第一導引套112設於第一葉片座u相對第一被傳，件111之另一端，且與第一導引件21樞接，而限制 —某片座11沿第一導引件21滑動，至於第一葉片i J 3被 —葉片座11承載’具有第一透光口 1131，此第一透光口 1 1 31為v字形。 >第二葉片座12具有第二被傳動件121、第二導引套i 及第二葉片1 2 3，其中第二被傳動件i 2 i設於第二葉片座ρ 迪端，其中空内部具有齒形，且與驅動螺桿31之第二 ^ 312嗜合，第二導引套122設於第二葉片座12相對第二被傳動件121之另-端，且與第-導弓！件21樞接，而限制第 :，片座1 2沿第一導引件2 1滑動，至於第二葉片i 2 3被第葉片座1 2承載，具有與第一透光口 1丨3丨相對並對稱於相、光軸C的之第二透光口 1231，此第二透光口 1231為乂字533332 V. Description of the invention (5) and the first-blade 113, JL Zhongli, Shiyou ▲ -end, hollow inside and the transmissions 11 are set at the first blade seat 11 end 3U meshing, the first guide; 丨 there are too teeth Shape, with the other sleeve 112 of the first screw seat of the driving screw 31-the threaded transmission member ill is provided opposite the first blade seat 11-the blade seat u is pivotally connected along the first member 21 to restrict the bearing of the first blade seat u As for the first leaf blade, the 131st is ν-shaped. There is a light-transmitting port 1131. This first light-transmitting port ^ t! J ^ 12 ^ ^ 121 '^ ^ ^ 122 shaped end, which stands in the middle of the hollow and the ancient transmission gear 121 is located on the second blade seat. The 12 end 312 is sprayed and closed, and the second angle guide / tooth ^: and the other end of the second screw transmission member 121 of the driving screw 31 is opposite to the second blade seat 12 along the second— The guide △ is pivotally connected to the two guide members 21 to restrict the bearing of the first blade seat U, and the second light-transmitting opening with the second blade _ the machine optical axis C is opposite to and ^^ the light-transmitting opening Π31 is opposite and symmetrical to the phase First port 1231. The second transparent port 1231 is V-shaped 2113 and 1231 facing each other. When moving, the first and second blade holders Π, 12 are driven, and they are moved toward or along the moon in the direction of the optical axis of the vertical camera under the guidance of ^ 2 1 to adjust the first and second light transmission openings 113 and 23. = Relative to the aperture formed by the camera's optical axis C, and controlling the amount of light entering the camera (a diamond shape composed of younger, two light-transmitting ports 113 and 1231). As shown in FIG. 4 and FIG. 5, another embodiment of the present invention includes a first blade holder U, a second blade holder 12, a pair of blade holders 1 3, 1 3, and a first blade holder. Guide 2 2 Second guide 2 2 Drive screw 3 1 and page 8 533332 5. Description of the invention (6) Transmission 41, wherein the first guide 21 is a long column and is used to limit The first and second blade holders 1 and 12 slide along it, and the second guide member 2 2 is perpendicular to the first guide member 21 to restrict the blade holders 1 3 and 1 3 and slide along it to drive the screw 3 丄It is used to drive the first and second blade seats 1 and 2 and has a first threaded end 3 11 and a second threaded end 3 1 2 whose thread rotation directions are opposite to each other so as to be respectively different from the first: two blade seat 1 1 2 meshes, as for the transmission member 4 丨, it is moved by the driving screw 3 ^ to drive the blade seat 13, 13, as shown in the figure, it is a gear connected to the driving screw 31. f The first blade seat 11 has a first driven member η 丨, a first guide sleeve 2 and a first blade 113. The first driven member U1 is provided at one end of the first blade seat η, and the hollow interior has teeth. To engage with the first threaded end 311 of the driving screw 3 丨, the first guide sleeve 112 is provided on the first blade seat u opposite the first pass, the other end of the member 111, and pivoted with the first guide 21 Connection, and the restriction-a certain piece of seat 11 slides along the first guide 21, as for the first blade i J 3 is carried by-the blade seat 11 'has a first light transmitting port 1131, this first light transmitting port 1 1 31 is V-shaped. > The second blade seat 12 has a second driven member 121, a second guide sleeve i, and a second blade 1 2 3, wherein the second driven member i 2 i is provided at the end of the second blade seat ρ, and the hollow The inner part has a tooth shape and is adapted to the second ^ 312 of the driving screw 31. The second guide sleeve 122 is provided at the other end of the second blade seat 12 opposite to the second driven member 121 and is connected to the first guide bow! Piece 21 is pivotally connected, and the second one is restricted: the sheet holder 12 slides along the first guide 21, and the second blade i 2 3 is carried by the first blade holder 12 and has a first light transmission opening 1 丨 3 丨A second light-transmitting port 1231 opposite to and symmetrical to the phase and the optical axis C, and the second light-transmitting port 1231 is a 乂

I·· 第9頁 533332 、發明說明（7) 形’兩第一、二透光口丨丨3丨、丨2 3丨彼此相向。葉片座13、13’，兩者同於第一、二葉片座11、12係為相向或相背地對稱於相機光軸c移動，分別包括第三被 $動件131、第三導引套13 2及第三葉片133，其中第三被中牛1 3 1设於葉片座1 3、1 3 ’ 一端，與傳動件4 1嚙合，圖所示，其為齒條，以配合為齒輪之驅動螺桿3 1，第三導 =套132設於葉片座13、13,相對第三被傳動件ι31之另一一 1且與第二導引件2 2樞接，而限制葉片座1 3、1 3，沿第 :導引件22滑動，至於第三葉片133被葉片座13、13，承 ^ 當轉動驅動螺桿31時 ii3来皮驅動，而使第一、二葉片座u、12在垂直相地對i ί f t沿著驅動螺桿31與第一導引件21相向或相背於相機光軸c移動，同時，使葉片座13、13 二葉=2/的引導之下沿著垂直該相機之光軸方向及第—、 c移動座以1之移動方向相向或相背地對稱於相機光軸對相機光軸C所形成的孔徑，而控制相機：以 t形透光口 113卜1231及第三葉片133所構成之Ϊ六 3、：3然1笛傳—動件/I也可為減速齒輪組，以調節葉片座而使光圈口句、:·葉片座1 1、1 2相對的移動速度比，進的移動下更趨近圓％，且使前述之六邊形在各葉 533332 五、發明說明（8) 如「第6A、6 B圖」所示，本發明更包括馬達50，且其與驅動螺桿3 1連接（其設置方向可垂直各葉片或是平行各葉片），以提供動力源，當然其可為步進馬達以提高控制驅動螺桿3 1轉動之精密度，且本發明更包括殼體6 0，此殼體6 0係由底座6 1及蓋體6 2所構成，且兩者各包括一穿透孔 6 1 1、6 2 1，此兩穿透孔6 1 1、6 2 1係為相對，以供光線進入相機。【達成之功效】本發明係為一種光圈結構，其具有下列之功效： 1.減少體積：本發明較習知技術於長度方面減少 12.5%。 2 .趨近圓形··本發明僅以兩對葉片座分別沿不同直線方向移動，即可形成趨近圓形的光圈口徑（六角形），所以可以提供較佳之成像品質，並僅需兩對葉片座即可達成此效果。 3.結構簡單：本發明主要以葉片座、驅動螺桿及導引件構成，所以結構較簡單，因此可降低組裝的困難度，甚至是可達到小型化的需求及節省製造成本。 4 ·定量微段控制：本發明透過螺桿節距之設計（螺桿轉動的角度與葉片移動量的關係為線性關係），及光圈口徑之變化量與葉片移動量維持線性關係下，可輕易地達到微調葉片座位置的功效。 5.葉片移動平順：本發明之葉片座以驅動螺桿驅動，且配合導引件之限制，可使葉片在移動時不至產生翹曲及I ·· Page 9 533332, Description of the invention (7) Shape ‘two first and two light-transmitting ports 丨丨 3 丨, 丨 2 3 丨 face each other. The blade holders 13 and 13 ′ are the same as the first and second blade holders 11 and 12 and move symmetrically with respect to the camera optical axis c, respectively, and include a third passive member 131 and a third guide sleeve 13. 2 and the third blade 133, of which the third one is located at the end of the blade seat 1 3, 1 3 ', and meshes with the transmission member 41, as shown in the figure, it is a rack to match the drive of the gear The screw 3 1 and the third guide = sleeve 132 are provided on the blade seats 13 and 13, and are pivotally connected to the other one 1 of the third driven member 31 and the second guide member 2 2, and restrict the blade seat 1 3, 1 3. Sliding along the first: the guide 22, as for the third blade 133 is driven by the blade holders 13, 13, ^ 3 when the driving screw 31 is rotated, so that the first and second blade holders u, 12 are in a vertical phase The ground pair i ft moves along the driving screw 31 toward the first guide 21 or away from the optical axis c of the camera, and at the same time, guides the blade holders 13, 13 two leaves = 2 along the vertical direction of the camera. The direction of the optical axis and the-and c moving bases are symmetrical to the aperture formed by the camera's optical axis to the camera's optical axis C in the direction of 1's movement or opposite, and control the camera: transmit light in a t shape 113, 1231, and the third blade 133 are composed of 36, 3: 3, and 1 flute-the moving parts / I can also be a reduction gear set, to adjust the blade seat to make the iris, 1: blade seat 1 1, 1 2 The relative moving speed is closer to the circle% under the advancing movement, and the aforementioned hexagon is in each leaf 533332. 5. Description of the invention (8) As shown in the "Figures 6A and 6B", the present invention It also includes a motor 50, and it is connected to the driving screw 31 (its setting direction can be vertical blades or parallel blades) to provide a power source. Of course, it can be a stepping motor to improve the precision of controlling the driving screw 31's rotation. The invention also includes a housing 60, which is composed of a base 61 and a cover 62, and each of them includes a penetration hole 6 1 1, 6 2 1 The through holes 6 1 1 and 6 2 1 are opposite for light to enter the camera. [Achieved effect] The present invention is an aperture structure, which has the following effects: 1. Reduction in volume: The present invention has a 12.5% reduction in length compared to conventional techniques. 2. Approaching a circle ... The present invention only requires two pairs of blade seats to move in different straight directions to form an aperture diameter (hexagon) that approaches a circle, so it can provide better imaging quality, and only requires two This effect can be achieved on the blade seat. 3. Simple structure: The present invention is mainly composed of a blade seat, a driving screw and a guide, so the structure is relatively simple, so it can reduce the difficulty of assembly, and even meet the demand for miniaturization and save manufacturing costs. 4 · Quantitative micro-segment control: According to the present invention, through the design of the screw pitch (the relationship between the angle of screw rotation and the amount of blade movement is linear) and the linear relationship between the change in the aperture diameter and the amount of blade movement can be easily achieved The effect of fine-tuning the blade seat position. 5. Smooth blade movement: The blade seat of the present invention is driven by a driving screw and cooperates with the restriction of the guide to prevent the blade from warping and

第11頁 533332Page 11 533332

第12頁 533332 圖式簡單說明Page 533332 Simple illustration

A 之意動例形示及施圖之圖杏貝何度體一幾長立另種小之之數最明明為上發發圖比本本 C 1度為為、長圖圖 B B B 1 大 2 3 最、、 A A 的 2 3 第點第第 1 任廓輪其至心 ^1 · > 何；.圖幾圖作作及圖體立的圖、丨圖明本第Β . 卜卩6說為為 j ””、號座圖圖 A 4 5 6 符片第第第式葉圖一 t第圖解分體立的例施實 - 又之明發圖合組及圖及解 •，分圖分合部組之的明例發施本實為之別圖分The illustration of the intentional examples of A and the illustrations. The figure of Xingbei is a long and different number. The most obvious is to send a picture than the book C. The degree is 1 and the long picture is BBB. 1 2 3 The 2nd, 3rd, and 1st points of the first round of the AA are the most important. ^ 1 · >Ho;. Figures are made as a figure and the figure is shown in the figure, and the figure B of this book. It is j ””, the figure of seat number A 4 5 6 of the fractal piece of the first style of the leaf map of the first t and the figure of the split example-another Mingfa map combination and figure and solution • It is really different to exemplify the implementation of the book

1M 第第第第葉一二二二座三三三導二第第第第片第第第一第葉第件件動套口動套口傳引片光座傳引片光被導葉透片被導葉透件動套傳引片件被導葉引1M No. 1st, No. 1, 22, 3, 3, 3, 3, 2nd, 2nd, 1st, 1st, 1st, and 1st pieces The guide vane is guided by the guide vane.

2 ix 第13頁 5333322 ix p. 13 533332

第14頁Page 14

Claims

533332 六、申請專利範圍 1. 一種光圈結構，應用於一相機，該光圈結構包括：一第一導引件，為一長柱；一驅動螺桿，其兩端分別為具有旋向互為相反螺紋之一第一螺紋端及一第二螺紋端；一第一葉片座，具有一第一透光口，且其相對兩端分別與該第一導引件樞接及與該驅動螺桿之該第一螺紋端响合；及一第二葉片座，具有與該第一透光口相對並一同對稱於該相機光軸之一第二透光口，且其相對兩端分別與該第一導引件樞接及該驅動螺桿之該第二螺紋端嚙合，當轉動該驅動螺桿時，該第一、二葉片座被驅動，而在該第一導引件的引導之下沿著垂直該相機之光軸方向相向或相背地對稱於該相機光軸移動，以調節該第一、二透光口之相對該相機光軸所形成的孔徑，進而控制該相機之進光量。 2. 如申請專利範圍第1項所述光圈結構，其中該第一葉片座具有設於其一端之一第一被傳動件，且該第一被傳動件之中空内部具有齒形，以與該驅動螺桿之該第一第一螺紋端响合。 3. 如申請專利範圍第2項所述光圈結構，其中該第一葉片座具有設於相對其該端之一第一導引套，以與該第一導引件樞接，而限制該第一葉片座沿其滑動。 4. 如申請專利範圍第1項所述光圈結構，其中該第一葉片座承載有一第一葉片，且該第一透光口設置於該第一葉533332 6. Scope of patent application 1. An aperture structure applied to a camera, the aperture structure includes: a first guide member, which is a long column; a driving screw, whose ends are respectively opposite to each other and have opposite rotation directions. A first threaded end and a second threaded end; a first blade seat having a first light-transmitting port, and opposite ends of which are respectively pivotally connected to the first guide and the first A threaded end resonates; and a second blade seat having a second light transmitting port opposite to the first light transmitting port and symmetrical with the camera optical axis together, and opposite ends of the second light transmitting port are respectively connected to the first guide The member is pivotally engaged with the second threaded end of the driving screw. When the driving screw is rotated, the first and second blade seats are driven, and guided by the first guide member along the vertical of the camera. The optical axis direction moves symmetrically to or from the camera optical axis to adjust the aperture formed by the first and second light-transmitting ports with respect to the optical axis of the camera, thereby controlling the amount of light entering the camera. 2. The aperture structure according to item 1 of the scope of patent application, wherein the first blade seat has a first driven member provided at one end thereof, and the hollow inside of the first driven member has a tooth shape to communicate with the The first first threaded end of the driving screw is closed. 3. The aperture structure according to item 2 of the scope of patent application, wherein the first blade seat has a first guide sleeve disposed at the end opposite to the first blade seat to pivotally connect with the first guide member, thereby restricting the first A blade seat slides along it. 4. The aperture structure according to item 1 of the scope of the patent application, wherein the first blade seat carries a first blade, and the first light-transmitting opening is disposed on the first blade.

第15頁 533332 六、申請專利範圍片。 5. 如申請專利範圍第1項所述光圈結構，其中該第二葉片座具有設於其一端之一第二被傳動件，且該第二被傳動件之中空内部具有齒形，以與該驅動螺桿之該第二螺紋端响合。 6. 如申請專利範圍第5項所述光圈結構，其中該第二葉片座具有設於相對其該端之一第二導引套，以與該第一導引件極接’而限制該第二葉片座沿其滑動。 7. 如申請專利範圍第1項所述光圈結構，其中該第二葉片座承載有一第二葉片’且該第二透光口設置於該第二葉 8. 如申請專利範圍第1項所述光圈結構，其中該第一、二透光口係為V字形，且彼此相向。 9. 如申請專利範圍第1項所述光圈: 一第二導引件，垂直該第一引#; 一傳動件，由該驅動螺桿驅動；及一對葉片座，兩者相向或相背地對稱於該相機光軸移動，且分別具有一第三葉片，並各與該第二導引件樞接及與該傳動件嚙合，當轉動該驅動螺桿時，該第一、二葉片座及該對葉片座被驅動，使該第一、二葉片座在該第一導引件的引導之下沿著垂直該相機之光軸方向相向或相背地移動，並使該對葉片座在該第二導引件的引導之下沿著垂直該相機之光轴方向及該第一、二葉片座之移動方向相向或相背地移動，以調節該第三葉片與該P.15 533332 VI. Patent Application Films. 5. The aperture structure according to item 1 of the scope of patent application, wherein the second blade seat has a second driven member provided at one end thereof, and the hollow inside of the second driven member has a tooth shape to communicate with the The second threaded end of the driving screw is closed. 6. The aperture structure according to item 5 of the scope of the patent application, wherein the second blade seat has a second guide sleeve disposed at the end opposite to the end, so as to be pole-connected to the first guide member, thereby restricting the first The two-leaf seat slides along it. 7. The aperture structure according to item 1 of the scope of the patent application, wherein the second blade seat carries a second blade 'and the second light-transmitting port is provided on the second leaf 8. As described in the scope of patent application item 1 Aperture structure, wherein the first and second transparent ports are V-shaped and face each other. 9. The aperture described in item 1 of the scope of patent application: a second guide member, perpendicular to the first guide member; a transmission member, driven by the driving screw; and a pair of blade seats, which are symmetrical to each other or back to back The camera moves along the optical axis and has a third blade, each of which is pivotally connected to the second guide member and meshes with the transmission member. When the driving screw is rotated, the first and second blade seats and the pair The blade holder is driven to move the first and second blade holders toward or opposite to each other along the direction perpendicular to the optical axis of the camera under the guidance of the first guide, and to make the pair of blade holders in the second guide. Under the guidance of the guide, the camera moves along the direction perpendicular to the optical axis of the camera and the moving directions of the first and second blade seats to or from each other to adjust the third blade and the

第16頁 533332 六、申請專利範圍第一、二透光口之相對該相機光軸所形成的孔徑，進而控制該相機之進光量。 1 0.如申請專利範圍第9項所述光圈結構，其中該對葉片座分別具有設於其一端之一第三被傳動件，以與該傳動件鳴合。 11.如申請專利範圍第10項所述光圈結構，其中該第三被傳動件係為一齒條，且該傳動件係為連接於該驅動螺桿之一齒輪，以驅動該第三被傳動件。 1 2 .如申請專利範圍第1 0項所述光圈結構，其中該對葉片座分別具有設於相對其該端之一第三導引套，以與該第二導引件樞接，而限制該葉片座沿其滑動。 1 3 .如申請專利範圍第9項所述光圈結構，其中該傳動件係為一減速齒輪組，以調節該對葉片座與該第一、二葉片座相對的移動速度比。 1 4 .如申請專利範圍第1項所述光圈一馬達，該馬達與該驅動螺桿連接，以提供ίΓ力源。 1 5 .如申請專利範圍第1 4項所述光圈結構，其中該馬達係為一步進馬達。 1 6 .如申請專利範圍第1項所述光圈—殼體，該殼體包括相對之兩穿透孔，以供光線進入該相機。 1 7.如申請專利範圍第1 6項所述光圈結構，其中該殼體包括一底座及一蓋體，且該兩穿透孔分別設於該底座與該蓋體。 1 8. —種光圈結構，應用於一相機，該光圈結構包括：Page 16 533332 VI. Scope of patent application The apertures formed by the first and second light-transmitting openings relative to the optical axis of the camera, so as to control the amount of light entering the camera. 10. The aperture structure according to item 9 of the scope of the patent application, wherein each of the pair of blade seats has a third driven member provided at one end thereof to be engaged with the driving member. 11. The aperture structure according to item 10 in the scope of the patent application, wherein the third driven member is a rack and the driving member is a gear connected to the driving screw to drive the third driven member. . 1 2. The aperture structure according to item 10 of the scope of patent application, wherein the pair of blade holders respectively have a third guide sleeve disposed opposite to the end thereof to pivotally connect with the second guide, and limit The blade seat slides along it. 13. The aperture structure according to item 9 in the scope of the patent application, wherein the transmission member is a reduction gear set to adjust the relative speed ratio of the pair of blade seats to the first and second blade seats. 14. The diaphragm-motor as described in item 1 of the scope of patent application, the motor is connected to the driving screw to provide a source of force. 15. The aperture structure according to item 14 of the scope of patent application, wherein the motor is a stepping motor. 16. The aperture-case according to item 1 of the scope of the patent application, which includes two opposite penetration holes for light to enter the camera. 17. The aperture structure according to item 16 of the scope of the patent application, wherein the housing includes a base and a cover, and the two through holes are respectively provided in the base and the cover. 1 8. —Aperture structure, applied to a camera, the aperture structure includes:

第17頁 533332 六、申請專利範圍一第一導引件，為一長柱；一驅動螺桿，具有一第一螺紋端；一第一葉片座，具有複數個圓形且尺寸相異的第一透光口，且其相對兩端分別與該第一導引件樞接及與該驅動螺桿之該第一螺紋端嚙合，當轉動該驅動螺桿時，該第一葉片座被驅動，而在該第一導引件的引導之下沿著垂直該相機之光轴方向移動，以調節該第一透光口與該相機光軸之相對位置，進而控制該相機之進光量。 1 9 .如申請專利範圍第1 8項所述光圈結構，其中該複數個第一透光口係排列成一直線。 2 0 .如申請專利範圍第1 8項所述光圈結構，其中該第一葉片座具有設於其一端之一第一被傳動件，且該第一被傳動件之中空内部具有齒形，以與該驅動螺桿之該第一螺紋端喷合。 2 1.如申請專利範圍第2 0項所述光圈結構，其中該第一葉片座具有設於相對其該端之一第一導引套，以與該第一導引件樞接，而限制該第一葉片座沿其滑動。 2 2 .如申請專利範圍第1 8項所述光圈結構，其中該第一葉片座承載有一第一葉片，且該第一透光口設置於該第一葉片。Page 17 533332 VI. Patent application scope A first guide member is a long post; a driving screw has a first threaded end; a first blade seat has a plurality of circular and different sizes of the first A light-transmitting port, and opposite ends of which are respectively pivotally connected to the first guide member and engaged with the first threaded end of the driving screw; when the driving screw is rotated, the first blade seat is driven and Under the guidance of the first guide, it moves along the direction perpendicular to the optical axis of the camera to adjust the relative position of the first light transmitting port and the optical axis of the camera, thereby controlling the amount of light entering the camera. 19. The aperture structure according to item 18 of the scope of the patent application, wherein the plurality of first light transmitting ports are arranged in a straight line. 20. The aperture structure according to item 18 of the scope of the patent application, wherein the first blade seat has a first driven member provided at one end thereof, and the hollow inside of the first driven member has a tooth shape, so that Sprayed with the first threaded end of the driving screw. 2 1. The aperture structure according to item 20 of the scope of the patent application, wherein the first blade seat has a first guide sleeve disposed opposite to the end thereof to pivotally connect with the first guide, thereby restricting The first blade seat slides along it. 2 2. The aperture structure according to item 18 of the scope of the patent application, wherein the first blade holder carries a first blade, and the first light-transmitting opening is disposed on the first blade.

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