TWI420186B - Can prevent the light of the telescopic lens - Google Patents
Can prevent the light of the telescopic lens Download PDFInfo
- Publication number
- TWI420186B TWI420186B TW97136847A TW97136847A TWI420186B TW I420186 B TWI420186 B TW I420186B TW 97136847 A TW97136847 A TW 97136847A TW 97136847 A TW97136847 A TW 97136847A TW I420186 B TWI420186 B TW I420186B
- Authority
- TW
- Taiwan
- Prior art keywords
- group frame
- optical axis
- base
- disposed
- straight
- Prior art date
Links
Landscapes
- Lens Barrels (AREA)
Description
本發明是有關於一種鏡頭，特別是指一種可防止洩光的伸縮鏡頭。The present invention relates to a lens, and more particularly to a telescopic lens that can prevent light leakage.
參閱圖1、2，為現有一種可沿一軸線L伸縮對焦的伸縮鏡頭1，該伸縮鏡頭1包含一基座11、一固設於該基座11之第一凸輪筒12、一可轉動地套設於該第一凸輪筒12之迴轉筒13、一直進筒14、一可轉動地套設於該直進筒14之第二凸輪筒15、一第一鏡群單元16、一第二鏡群單元17、一設置於該基座11之感光元件18，及一固設於該第一鏡群單元16之防塵蓋裝置19。1 and 2, there is a telescopic lens 1 that can be telescoped along an axis L. The telescopic lens 1 includes a base 11 , a first cam barrel 12 fixed to the base 11 , and a rotatably a rotating cylinder 13 disposed on the first cam barrel 12, a continuous feeding cylinder 14, a second cam barrel 15 rotatably sleeved on the straight feeding cylinder 14, a first mirror group unit 16, and a second mirror group The unit 17 includes a photosensitive element 18 disposed on the base 11 and a dust cover device 19 fixed to the first mirror group unit 16.
該直進筒14是可沿該軸線L方向往復移動地與該第一凸輪筒12連結，並包括一具有一內周面142之筒壁141，及一由該內周面142彎折延伸之驅動爪143，該驅動爪143是用以連動該防塵蓋裝置19之啟閉。The straight-moving cylinder 14 is coupled to the first cam barrel 12 so as to be reciprocally movable in the direction of the axis L, and includes a cylinder wall 141 having an inner peripheral surface 142, and a drive extending from the inner peripheral surface 142. The claw 143 is configured to interlock the opening and closing of the dust cover device 19.
該第一鏡群單元16是穿設於該直進筒14內，並包括一第一群框161、一固設於該第一群框161且與該感光元件18對應之第一鏡片162，及複數連接於該第一群框161之第一連動銷163，每一連動銷163是穿設於該直進筒14而滑接於該第二凸輪筒15。The first lens group unit 16 is disposed in the straight-moving cylinder 14 and includes a first group frame 161, a first lens 162 fixed to the first group frame 161 and corresponding to the photosensitive element 18, and The first interlocking pins 163 are connected to the first group frame 161, and each of the linking pins 163 is disposed on the straight-moving cylinder 14 and is slidably coupled to the second cam barrel 15.
該第二鏡群單元17穿設於該直進筒14內，並包括一具有一外周面172之第二群框171，及一固設於該第二群框171且與該第一鏡片162對應之第二鏡片173，及複數連接 於該第二群框171之第二連動銷174，每一連動銷174是穿設於該直進筒14而滑接於該第二凸輪筒15。The second mirror group unit 17 is disposed in the straight-moving cylinder 14 and includes a second group frame 171 having an outer peripheral surface 172, and is fixed to the second group frame 171 and corresponding to the first lens 162. Second lens 173, and multiple connections In the second interlocking pin 174 of the second group frame 171, each of the linking pins 174 is disposed in the straight-moving cylinder 14 and is slidably coupled to the second cam barrel 15 .
藉由一驅動件(圖未示)帶動該迴轉筒13繞該軸線L轉動，即可使該第二凸輪筒15、該直進筒14與該等鏡群單元16、17沿該軸線L方向往遠離該感光元件18之方向伸出以進行對焦工作。The second cam barrel 15, the straight-moving cylinder 14 and the mirror unit 16 and 17 are oriented along the axis L by driving the rotating cylinder 13 about the axis L by a driving member (not shown). Extending away from the direction of the photosensitive element 18 for focusing operation.
雖然該伸縮鏡頭1可以伸縮以進行對焦工作，但具有下列缺點：一、該第二鏡群單元17位於一遠離該第一鏡群單元16之近拍位置時，該第二群框171之外周面172與該直進筒14之內周面142間存有一縫隙10，如此，將使得該伸縮鏡頭1外部之光線(如箭頭所示)通過該第一鏡片162後，通過該縫隙10經由該內、外周面142、172反射而投射至該感光元件18，造成該感光元件18非預期感光而發生洩光之情形。Although the telescopic lens 1 can be expanded and contracted for focusing operation, it has the following disadvantages: 1. When the second mirror group unit 17 is located at a close-up position away from the first mirror group unit 16, the second group frame 171 is outside the circumference. A gap 10 is formed between the surface 172 and the inner peripheral surface 142 of the straight-moving cylinder 14, so that the light outside the telescopic lens 1 (shown by an arrow) passes through the first lens 162, and the gap 10 passes through the inside. The outer peripheral surfaces 142, 172 are reflected and projected onto the photosensitive element 18, causing the photosensitive element 18 to be undesirably photosensitive and leaking.
二、由於該驅動爪143是由該直進筒14之內周面142彎折延伸，因此，除了使得該直進筒14之射出模具製作難度提高外，還會增加該直進筒14射出成型後進行拔模之時間，致使製造成本增加。2. Since the driving claw 143 is bent and extended by the inner circumferential surface 142 of the straight feeding cylinder 14, in addition to making the injection mold of the straight feeding cylinder 14 more difficult to manufacture, the straightening cylinder 14 is increased after injection molding. The time of the mold leads to an increase in manufacturing costs.
因此，本發明之一目的即在提供一種可避免非預期感光的可防止洩光的伸縮鏡頭。Accordingly, it is an object of the present invention to provide a telescopic lens that can prevent undesired sensitization and prevent leakage.
本發明之另一目的即在提供一種可降低製造成本的可防止洩光的伸縮鏡頭。Another object of the present invention is to provide a telescopic lens which can prevent light leakage which can reduce the manufacturing cost.
於是，本發明可防止洩光的伸縮鏡頭包含一基座、一基筒、一直進筒、一第一鏡群單元、一第二鏡群單元，及一遮光單元。該基筒是固設於該基座並圍繞一光軸。該直進筒是可沿該光軸方向往復移動地安裝於該基筒。該第一鏡群單元是可沿該光軸方向移動地設置於該直進筒內，並包括一具有一圍繞該光軸之內周面的第一群框，及至少一沿該光軸方向固設於該第一群框之第一鏡片。該第二鏡群單元是可沿該光軸方向移動地設置於該直進筒內，並包括一具有一沿該光軸方向面對該第一群框之承靠面的第二群框，及至少一固設於該第二群框且對應該第一鏡片之第二鏡片，當該第二群框位於一遠離該第一鏡片之近拍位置時，該第二群框與該第一群框之內周面間具有一縫隙。該遮光單元包括一可沿該光軸方向移動地設置於該第二群框之遮光座，及一夾設於該遮光座與該承靠面間且可推送該遮光座往該第一鏡片移動而遮蔽該縫隙之彈性件。Therefore, the telescopic lens capable of preventing leakage of light of the present invention comprises a base, a base cylinder, a continuous advance cylinder, a first mirror group unit, a second mirror group unit, and a light shielding unit. The base cylinder is fixed to the base and surrounds an optical axis. The straight-moving cylinder is attached to the base cylinder so as to be reciprocally movable in the optical axis direction. The first mirror group unit is disposed in the straight-moving cylinder so as to be movable along the optical axis direction, and includes a first group frame having an inner circumferential surface surrounding the optical axis, and at least one solid along the optical axis direction The first lens disposed in the first group frame. The second mirror group unit is movably disposed in the straight-moving cylinder along the optical axis direction, and includes a second group frame having a bearing surface facing the first group frame along the optical axis direction, and At least one second lens fixed to the second group frame and corresponding to the first lens, and the second group frame and the first group when the second group frame is located at a close-up position away from the first lens There is a gap between the inner faces of the frame. The light shielding unit includes a light shielding seat disposed in the second group frame and movable along the optical axis, and is disposed between the light shielding seat and the bearing surface and can push the light shielding seat to move to the first lens And the elastic member that shields the slit.
藉由該彈性件推送該遮光座往該第一鏡片之方向移動而遮蔽該縫隙，可避免該伸縮鏡頭外部之光線經由反射通過該縫隙而造成非預期感光。The elastic member pushes the light-shielding seat to move in the direction of the first lens to shield the gap, so that the light outside the telescopic lens can be prevented from being undesirably photosensitive through the gap.
有關本發明之前述及其他技術內容、特點與功效，在以下配合參考圖式之一個較佳實施例的詳細說明中，將可清楚的呈現。The above and other technical contents, features and advantages of the present invention will be apparent from the following detailed description of the preferred embodiments.
參閱圖3、4，本發明可防止洩光的伸縮鏡頭包含一基座2、一基筒3、一直進筒4、一凸輪筒5、一第一鏡群單 元6、一第二鏡群單元7、一遮光單元8、一防塵蓋裝置9、一驅動件30，及一感光元件20。Referring to Figures 3 and 4, the telescopic lens of the present invention for preventing leakage of light includes a base 2, a base cylinder 3, a continuous feed cylinder 4, a cam cylinder 5, and a first mirror group. A sixth mirror group unit 7, a light shielding unit 8, a dust cover device 9, a driving member 30, and a photosensitive member 20.
該基座2包括複數圍繞一光軸Y之擋塊21。The base 2 includes a plurality of stops 21 that surround an optical axis Y.
該基筒3是固設於該基座2且圍繞該光軸Y，並包括複數沿該光軸Y方向延伸之導槽31、複數沿一圓周方向延伸之凸輪溝32及一穿孔33。The base cylinder 3 is fixed to the base 2 and surrounds the optical axis Y, and includes a plurality of guide grooves 31 extending along the optical axis Y direction, a plurality of cam grooves 32 extending in a circumferential direction, and a through hole 33.
配合參閱圖5，該直進筒4是可沿該光軸Y方向往復移動地安裝於該基筒3，並包括複數圍繞該光軸Y之擋止面41、複數分別與該等擋止面41連通之直溝42、複數分別滑接於該基筒3之該等導槽31的導引部43、複數凸設於一外周面44之凸出部45、複數第一直進溝46及複數第二直進溝47。Referring to FIG. 5, the straight-moving cylinder 4 is mounted to the base cylinder 3 so as to be reciprocally movable along the optical axis Y direction, and includes a plurality of blocking surfaces 41 surrounding the optical axis Y, and a plurality of the respective stopping surfaces 41 respectively. a straight groove 42 connected, a plurality of guiding portions 43 respectively sliding to the guiding grooves 31 of the base cylinder 3, a plurality of protruding portions 45 protruding from an outer peripheral surface 44, a plurality of first straight grooves 46 and a plurality of Two straight into the ditch 47.
該凸輪筒5是可轉動地套設於該直進筒4且與該基筒3連接，並包括一凹設於一內周面51且與該直進筒4之該等凸出部45滑接之迴轉槽52、複數凸設於一外周面53且分別與該基筒3之該等凸輪溝32滑接之導引部54、複數沿圓周方向設置於該外周面53之齒部55、複數沿圓周方向延伸之第一凸輪溝56，及複數沿該圓周方向延伸之第二凸輪溝57。The cam barrel 5 is rotatably sleeved on the straight-moving cylinder 4 and connected to the base cylinder 3, and includes a concave portion disposed on an inner circumferential surface 51 and slidingly connected to the protruding portions 45 of the straight-moving cylinder 4. a rotary groove 52, a plurality of guiding portions 54 protruding from an outer peripheral surface 53 and respectively sliding with the cam grooves 32 of the base cylinder 3, a plurality of teeth 55 disposed on the outer circumferential surface 53 in the circumferential direction, and a plurality of edges a first cam groove 56 extending in the circumferential direction, and a plurality of second cam grooves 57 extending in the circumferential direction.
該第一鏡群單元6是可沿該光軸Y方向移動地設置於該直進筒4內，並包括一具有一圍繞該光軸Y之內周面611的第一群框61、一沿該光軸Y方向固設於該第一群框61之第一鏡片62，及複數與該第一群框61連接之第一連動銷63，該等第一連動銷63是分別穿設於該直進筒4之該等第 一直進溝46而分別滑接於該凸輪筒5之該等第一凸輪溝56。The first mirror group unit 6 is disposed in the straight-moving cylinder 4 so as to be movable along the optical axis Y direction, and includes a first group frame 61 having an inner circumferential surface 611 surrounding the optical axis Y. The first lens 62 of the first group frame 61 is fixed to the first lens frame 61 of the first group frame 61, and the first interlocking pin 63 connected to the first group frame 61. The first interlocking pins 63 are respectively disposed on the straight lens. The fourth of the cylinder 4 The grooves 46 are always guided into the first cam grooves 56 of the cam barrel 5 .
參閱圖3~6，該第二鏡群單元7是可沿該光軸Y方向移動地設置於該直進筒4內，並包括一呈階級狀之第二群框71、一固設於該第二群框71且對應該第一鏡群單元6之第一鏡片62的第二鏡片72，及複數與該第二群框71連接之第二連動銷73。該第二群框71具有一大徑段711、一由該大徑段711延伸且可穿設於該第一群框61的小徑段712、複數設置於該小徑段712之限位槽713，及一位於該大、小徑段711、712間且沿該光軸Y方向面對該第一群框61之承靠面714。該等第二連動銷73是分別穿設於該基筒3之該等第二直進溝47而分別滑接於該凸輪筒5之該等第二凸輪溝57。值得說明的是，該等鏡群單元6、7之鏡片數目可依該伸縮鏡頭的使用目的(例如望遠鏡頭或廣角鏡頭)而有所調整，可將該第一鏡片62與該第二鏡片72的數目更改為二片或三片。Referring to FIGS. 3-6, the second mirror group unit 7 is disposed in the straight-moving cylinder 4 so as to be movable along the optical axis Y direction, and includes a second group frame 71 in a class shape, and is fixed in the first The second group frame 71 has a second lens 72 corresponding to the first lens 62 of the first mirror group unit 6, and a plurality of second interlocking pins 73 connected to the second group frame 71. The second group frame 71 has a large diameter section 711 , a small diameter section 712 extending from the large diameter section 711 and slidable through the first group frame 61 , and a plurality of limiting slots disposed on the small diameter section 712 . 713, and a bearing surface 714 located between the large and small diameter segments 711 and 712 and facing the first group frame 61 along the optical axis Y direction. The second interlocking pins 73 are respectively disposed in the second straight grooves 47 of the base cylinder 3 and are respectively slidably coupled to the second cam grooves 57 of the cam barrel 5 . It should be noted that the number of lenses of the mirror group units 6 and 7 can be adjusted according to the purpose of use of the telescopic lens (for example, a telescope head or a wide-angle lens), and the first lens 62 and the second lens 72 can be The number is changed to two or three.
該遮光單元8包括一可沿該光軸Y方向移動地設置於該第二鏡群單元7之第二群框71的遮光座81，及一夾設於該遮光座81與該第二群框71之承靠面714間之彈性件82。該遮光座81具有一套設於該小徑段712之環狀本體811、複數形成於該本體811之一內環面816且分別嵌入該等限位槽713之限位塊812、一固定爪813、複數由該本體811往該基座2延伸之限位腳814，及一與該第二群框71之承靠面714對應且供該彈性件82嵌入之定位槽815，其中， 每一限位腳814具有一由該本體811往該基座2延伸之連接段817，及一由該連接段817延伸而滑接於該直進筒4之其中一直溝42且具有一頂抵面819之限位段818。該彈性件82可推送該遮光座81沿該光軸Y方向往該第一鏡群單元6之第一鏡片62移動，值得說明的是，該彈性件82可以是一盤形彈簧、壓縮彈簧或彈性橡膠體，在本實施例中，該彈性件82是一壓縮彈簧。The light shielding unit 8 includes a light shielding seat 81 which is disposed in the second group frame 71 of the second mirror group unit 7 and is movable along the optical axis Y direction, and is disposed on the light shielding seat 81 and the second group frame The elastic member 82 between the bearing surfaces 714 of 71. The light-shielding seat 81 has a ring body 811 disposed on the small-diameter section 712, a plurality of limiting blocks 812 formed on the inner ring surface 816 of the body 811 and respectively embedded in the limiting slots 713, and a fixing claw 813, a plurality of limiting legs 814 extending from the body 811 to the base 2, and a positioning slot 815 corresponding to the bearing surface 714 of the second group frame 71 and for the elastic member 82 to be embedded therein, wherein Each of the limiting legs 814 has a connecting portion 817 extending from the body 811 to the base 2, and a connecting portion 817 extends and is slidably connected to the straight groove 42 of the straight-moving cylinder 4 and has a top surface. Limit section 819 of 819. The elastic member 82 can push the shade 81 to move along the optical axis Y direction to the first lens 62 of the first mirror group unit 6. It should be noted that the elastic member 82 can be a disc spring, a compression spring or In the present embodiment, the elastic member 82 is a compression spring.
該防塵蓋裝置9是蓋設於該第一鏡群單元6之第一群框61，並包括一與該第一鏡片62對應之開口91、複數圍繞該光軸Y之防塵蓋92，及一作動爪93，該作動爪93是往該遮光單元8之固定爪813延伸且連動該等防塵蓋92遮蔽或開啟該開口91。The dust cover device 9 is disposed on the first group frame 61 of the first mirror group unit 6 and includes an opening 91 corresponding to the first lens 62, a plurality of dust covers 92 surrounding the optical axis Y, and a dust cover 92. The actuating claw 93 extends toward the fixing claw 813 of the light shielding unit 8 and interlocks the dust cover 92 to shield or open the opening 91.
該驅動件30是可轉動地設置於該基筒3且穿伸出該穿孔33與該凸輪筒5之部分該等齒部55嚙合，在本實施例中，該驅動件30是一齒輪。The driving member 30 is rotatably disposed on the base cylinder 3 and extends through the through hole 33 to engage with the tooth portions 55 of the cam barrel 5. In the embodiment, the driving member 30 is a gear.
該感光元件20設置於該基座2且與該第二鏡群單元7之第二鏡片72對應。The photosensitive element 20 is disposed on the susceptor 2 and corresponds to the second lens 72 of the second mirror group unit 7.
參閱圖3~5，當使用該伸縮鏡頭進行遠距離拍攝時，是藉由一馬達(圖未示)驅動該驅動件30而帶動該凸輪筒5繞該光軸Y轉動，使該凸輪筒5之該等導引部54分別沿著該基筒3之該等凸輪溝32滑動，進而帶動該凸輪筒5與該直進筒4沿該光軸Y方向往被拍攝對象移動，同時，該等鏡群單元6、7之該等連動銷63、73因該凸輪筒5轉動而分別沿該等第一、第二凸輪溝56、57滑動，使該等群框61 、71沿該光軸Y方向往被拍攝對象移動直到該第二群框71位於一鄰近該第一群框61之遠拍位置，此時，該遮光單元8之該等頂抵面819是分別與該直進筒4之該等擋止面41貼抵，並帶動該遮光座81往該基座2之方向移動而壓擠該彈性件82，使該固定爪813與該防塵蓋裝置9之作動爪93保持分離，以確保該等防塵蓋92開啟該開口91。Referring to FIGS. 3 to 5, when the telescopic lens is used for long-distance shooting, the driving member 30 is driven by a motor (not shown) to drive the cam barrel 5 to rotate about the optical axis Y, so that the cam barrel 5 is rotated. The guiding portions 54 respectively slide along the cam grooves 32 of the base cylinder 3, thereby driving the cam barrel 5 and the straight-moving cylinder 4 to move toward the object along the optical axis Y direction, and at the same time, the mirrors The interlocking pins 63, 73 of the group units 6, 7 are slid along the first and second cam grooves 56, 57 by the rotation of the cam barrel 5, so that the group frames 61 are And moving along the optical axis Y direction to the object to be photographed until the second group frame 71 is located at a telephoto position adjacent to the first group frame 61. At this time, the abutting surfaces 819 of the shading unit 8 are respectively Abutting against the blocking surface 41 of the straight-moving cylinder 4, the light-shielding seat 81 is moved in the direction of the base 2 to press the elastic member 82, and the fixing claw 813 and the dust cover device 9 are actuated. The claws 93 remain separated to ensure that the dust caps 92 open the opening 91.
參閱圖3、5、6，當欲使用該伸縮鏡頭進行近距離拍攝時，同樣是藉由該馬達驅動該驅動件30而帶動該凸輪筒5繞該光軸Y轉動，並間接帶動該第二群框71沿該光軸Y方向遠離被拍攝對象，直到該第二群框71位於一遠離該第一群框61之第一鏡片62的近拍位置，此時，該第二群框71與該第一群框61之內周面611間具有一縫隙70，且該遮光座81之該等頂抵面819是分別與該直進筒4之該等擋止面41脫離，因此，該彈性件82可將該遮光座81往該第一鏡片62之方向推送而遮蔽該縫隙70，且由於該等限位槽713分別限制該等限位塊812沿該光軸Y方向之位移，該遮光座81仍與該第二群框71保持滑接而不致脫離。Referring to FIGS. 3, 5, and 6, when the telescopic lens is to be used for close-up shooting, the driving member 30 is driven by the motor to drive the cam barrel 5 to rotate around the optical axis Y, and indirectly drive the second The group frame 71 is away from the object in the optical axis Y direction until the second group frame 71 is located at a close-up position of the first lens 62 away from the first group frame 61. At this time, the second group frame 71 is The inner peripheral surface 611 of the first group frame 61 has a slit 70, and the abutting surfaces 819 of the light shielding seat 81 are respectively separated from the stop surfaces 41 of the straight-moving cylinder 4, and therefore, the elastic member The light-shielding block 81 can be pushed in the direction of the first lens 62 to shield the gap 70, and the limiting holes 713 respectively limit the displacement of the limiting blocks 812 along the optical axis Y direction. 81 remains in sliding contact with the second group frame 71 without disengagement.
參閱圖3、7、8，當要將伸縮鏡頭進行收納時，藉由該馬達驅動該驅動件30而帶動該凸輪筒5繞該光軸Y反向轉動，使該凸輪筒5、該直進筒4與該等鏡群單元6、7沿該光軸Y方向往該基座2移動，直到該第二群框71位於一鄰近該基座2之收納位置時，該防塵蓋裝置9之作動爪93是與該遮光座81之固定爪813頂抵而連動該等防塵蓋92遮蔽該開口91，且該第一群框61是抵壓該遮光座81而壓縮 該彈性件82，另外，該等限位腳814是分別撐抵於該等擋塊21，可確保該作動爪93與該固定爪813相頂抵。Referring to FIGS. 3, 7, and 8, when the telescopic lens is to be accommodated, the driving member 30 is driven by the motor to drive the cam barrel 5 to rotate in the opposite direction about the optical axis Y, so that the cam barrel 5 and the straight tube 4 and the mirror group units 6, 7 move along the optical axis Y direction toward the base 2 until the second group frame 71 is located in a storage position adjacent to the base 2, the claw of the dust cover device 9 93 is abutting against the fixing claw 813 of the light shielding seat 81 and interlocking the dust cover 92 to shield the opening 91, and the first group frame 61 is pressed against the light shielding seat 81 to be compressed. The elastic member 82 is further supported by the stoppers 814 to ensure that the actuating claws 93 abut against the fixing claws 813.
經由上述說明，可將本發明之優點歸納如下：一、可避免非預期感光：當該第二群框71位於近拍位置時，藉由該彈性件82推送該遮光座81沿該光軸Y方向往該第一鏡片62移動而遮蔽該縫隙70，可避免如習知該伸縮鏡頭1外部之光線投射至該感光元件18，造成該感光元件18非預期感光而發生洩光之情形。Through the above description, the advantages of the present invention can be summarized as follows: 1. Unexpected sensitization can be avoided: when the second group frame 71 is in the close-up position, the light-shielding seat 81 is pushed along the optical axis Y by the elastic member 82. The direction of moving toward the first lens 62 to shield the slit 70 avoids the case where the light outside the telescopic lens 1 is projected onto the photosensitive element 18, causing the photosensitive element 18 to be undesirably photosensitive and leaking.
二、可降低製造成本：由於該遮光座81之固定爪813是由該本體811面對該第一群框61之一端面810(見圖6)直線延伸，因此相較於習知該驅動爪143呈彎折之型式，除了可使該遮光座81之射出模具易於製作外，還可降低該遮光座81射出成型後進行拔模之時間，進而降低製造成本。2. The manufacturing cost can be reduced: since the fixing claw 813 of the light shielding seat 81 is linearly extended by the body 811 facing one end surface 810 (see FIG. 6) of the first group frame 61, the driving claw is compared with the conventional driving claw. The 143 is of a bent type, and the injection mold of the shade 81 can be easily manufactured, and the time for the masking of the shade 81 after the injection molding can be reduced, thereby reducing the manufacturing cost.
惟以上所述者，僅為本發明之較佳實施例而已，當不能以此限定本發明實施之範圍，即大凡依本發明申請專利範圍及發明說明內容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內。The above is only the preferred embodiment of the present invention, and the scope of the invention is not limited thereto, that is, the simple equivalent changes and modifications made by the scope of the invention and the description of the invention are All remain within the scope of the invention patent.
2‧‧‧基座2‧‧‧Base
20‧‧‧感光元件20‧‧‧Photosensitive elements
21‧‧‧擋塊21‧‧ ‧block
3‧‧‧基筒3‧‧‧ base tube
30‧‧‧驅動件30‧‧‧ Drives
31‧‧‧導槽31‧‧‧ Guide slot
32‧‧‧凸輪溝32‧‧‧ cam groove
33‧‧‧穿孔33‧‧‧Perforation
4‧‧‧直進筒4‧‧‧ straight into the tube
41‧‧‧擋止面41‧‧‧stop surface
42‧‧‧直溝42‧‧‧ straight groove
43‧‧‧導引部43‧‧‧Guidance
44‧‧‧外周面44‧‧‧ outer perimeter
45‧‧‧凸出部45‧‧‧protrusion
46‧‧‧第一直進溝46‧‧‧First straight trench
47‧‧‧第二直進溝47‧‧‧Second straight trench
5‧‧‧凸輪筒5‧‧‧Cam tube
51‧‧‧內周面51‧‧‧ inner circumference
52‧‧‧迴轉槽52‧‧‧Rotary groove
53‧‧‧外周面53‧‧‧ outer perimeter
54‧‧‧導引部54‧‧‧Guide
55‧‧‧齒部55‧‧‧ teeth
56‧‧‧第一凸輪溝56‧‧‧First cam groove
57‧‧‧第二凸輪溝57‧‧‧Second cam groove
6‧‧‧第一鏡群單元6‧‧‧First mirror group unit
61‧‧‧第一群框61‧‧‧First group box
611‧‧‧內周面611‧‧‧ inner circumference
62‧‧‧第一鏡片62‧‧‧ first lens
63‧‧‧第一連動銷63‧‧‧First linked sales
7‧‧‧第二鏡群單元7‧‧‧Second mirror group unit
70‧‧‧縫隙70‧‧‧ gap
71‧‧‧第二群框71‧‧‧Second group box
711‧‧‧大徑段711‧‧‧ Large diameter section
712‧‧‧小徑段712‧‧‧Small path
713‧‧‧限位槽713‧‧‧Limited slot
714‧‧‧承靠面714‧‧‧ bearing surface
72‧‧‧第二鏡片72‧‧‧second lens
73‧‧‧第二連動銷73‧‧‧Second linkage
8‧‧‧遮光單元8‧‧‧ shading unit
81‧‧‧遮光座81‧‧‧ shading seat
810‧‧‧端面810‧‧‧ end face
811‧‧‧本體811‧‧‧ Ontology
812‧‧‧限位塊812‧‧‧ Limit Block
813‧‧‧固定爪813‧‧‧Fixed claws
814‧‧‧限位腳814‧‧‧Limited feet
815‧‧‧定位槽815‧‧‧ positioning slot
816‧‧‧內環面816‧‧‧ Inner torus
817‧‧‧連接段817‧‧‧Connection section
818‧‧‧限位段818‧‧‧Limited section
819‧‧‧頂抵面819‧‧‧
82‧‧‧彈性件82‧‧‧Flexible parts
9‧‧‧防塵蓋裝置9‧‧‧Dust cover device
91‧‧‧開口91‧‧‧ openings
92‧‧‧防塵蓋92‧‧‧Dust cover
93‧‧‧作動爪93‧‧‧Working claws
Y‧‧‧光軸Y‧‧‧ optical axis
圖1是一立體分解圖，說明現有一種伸縮鏡頭；圖2是一剖面示意圖，說明一第二鏡群單元位於一近拍位置時之情形；圖3是一立體分解圖，說明本發明可防止洩光的伸縮鏡頭之一較佳實施例；1 is an exploded perspective view showing a conventional telescopic lens; FIG. 2 is a schematic cross-sectional view showing a second mirror group unit in a close-up position; FIG. 3 is an exploded perspective view showing the present invention. a preferred embodiment of a leaky telescopic lens;
圖4是一剖面示意圖，說明一第二群框位於一遠拍位置時之情形；圖5是一剖面示意圖，說明一遮光座之一頂抵面與一直進筒之擋止面相頂抵時之情形；圖6是一剖面示意圖，說明該第二群框位於一近拍位置時之情形；圖7是一剖面示意圖，說明該第二群框位於一收納位置時之情形，其中一基筒省略未繪出；及圖8是一剖面示意圖，說明一作動爪與一固定爪相頂抵時之情形，其中該基筒省略未繪出。4 is a schematic cross-sectional view showing a second group frame at a telephoto position; and FIG. 5 is a cross-sectional view showing a top abutment surface of a light-shielding seat abutting against a stop surface of the continuous feed tube Figure 6 is a schematic cross-sectional view showing the second group frame in a close-up position; Figure 7 is a schematic cross-sectional view showing the second group frame in a storage position, wherein a base cylinder is omitted Not shown; and FIG. 8 is a schematic cross-sectional view showing a case where an actuating claw abuts against a fixed claw, wherein the base cylinder is omitted and not shown.
2‧‧‧基座2‧‧‧Base
20‧‧‧感光元件20‧‧‧Photosensitive elements
21‧‧‧擋塊21‧‧ ‧block
3‧‧‧基筒3‧‧‧ base tube
30‧‧‧驅動件30‧‧‧ Drives
31‧‧‧導槽31‧‧‧ Guide slot
32‧‧‧凸輪溝32‧‧‧ cam groove
33‧‧‧穿孔33‧‧‧Perforation
4‧‧‧直進筒4‧‧‧ straight into the tube
42‧‧‧直溝42‧‧‧ straight groove
43‧‧‧導引部43‧‧‧Guidance
44‧‧‧外周面44‧‧‧ outer perimeter
45‧‧‧凸出部45‧‧‧protrusion
46‧‧‧第一直進溝46‧‧‧First straight trench
47‧‧‧第二直進溝47‧‧‧Second straight trench
5‧‧‧凸輪筒5‧‧‧Cam tube
51‧‧‧內周面51‧‧‧ inner circumference
52‧‧‧迴轉槽52‧‧‧Rotary groove
53‧‧‧外周面53‧‧‧ outer perimeter
54‧‧‧導引部54‧‧‧Guide
55‧‧‧齒部55‧‧‧ teeth
56‧‧‧第一凸輪溝56‧‧‧First cam groove
57‧‧‧第二凸輪溝57‧‧‧Second cam groove
6‧‧‧第一鏡群單元6‧‧‧First mirror group unit
61‧‧‧第一群框61‧‧‧First group box
63‧‧‧第一連動銷63‧‧‧First linked sales
7‧‧‧第二鏡群單元7‧‧‧Second mirror group unit
71‧‧‧第二群框71‧‧‧Second group box
711‧‧‧大徑段711‧‧‧ Large diameter section
712‧‧‧小徑段712‧‧‧Small path
713‧‧‧限位槽713‧‧‧Limited slot
714‧‧‧承靠面714‧‧‧ bearing surface
73‧‧‧第二連動銷73‧‧‧Second linkage
8‧‧‧遮光單元8‧‧‧ shading unit
81‧‧‧遮光座81‧‧‧ shading seat
811‧‧‧本體811‧‧‧ Ontology
812‧‧‧限位塊812‧‧‧ Limit Block
813‧‧‧固定爪813‧‧‧Fixed claws
814‧‧‧限位腳814‧‧‧Limited feet
816‧‧‧內環面816‧‧‧ Inner torus
82‧‧‧彈性件82‧‧‧Flexible parts
9‧‧‧防塵蓋裝置9‧‧‧Dust cover device
92‧‧‧防塵蓋92‧‧‧Dust cover
93‧‧‧作動爪 Y‧‧‧光軸93‧‧‧Working claws Y‧‧‧ optical axis
Claims (14)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW97136847A TWI420186B (en) | 2008-09-25 | 2008-09-25 | Can prevent the light of the telescopic lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW97136847A TWI420186B (en) | 2008-09-25 | 2008-09-25 | Can prevent the light of the telescopic lens |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| TW201013247A TW201013247A (en) | 2010-04-01 |
| TWI420186B true TWI420186B (en) | 2013-12-21 |
Family
ID=44829266
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TW97136847A TWI420186B (en) | 2008-09-25 | 2008-09-25 | Can prevent the light of the telescopic lens |
Country Status (1)
| Country | Link |
|---|---|
| TW (1) | TWI420186B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI450015B (en) * | 2010-12-31 | 2014-08-21 | Hon Hai Prec Ind Co Ltd | Dust removal structure of image capture lens |
| TWI486665B (en) * | 2013-05-03 | 2015-06-01 | Sintai Optical Shenzhen Co Ltd | Optical device |
| TWI704409B (en) * | 2019-01-29 | 2020-09-11 | 啟碁科技股份有限公司 | Lens adjustment device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0713245A (en) * | 1993-06-21 | 1995-01-17 | Canon Inc | Camera |
| TWI271567B (en) * | 2005-08-24 | 2007-01-21 | Asia Optical Co Inc | Zoom lens apparatus |
| TW200809295A (en) * | 2006-08-03 | 2008-02-16 | Asia Optical Co Inc | Optical lens capable of preventing light leakage |
-
2008
- 2008-09-25 TW TW97136847A patent/TWI420186B/en not_active IP Right Cessation
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0713245A (en) * | 1993-06-21 | 1995-01-17 | Canon Inc | Camera |
| TWI271567B (en) * | 2005-08-24 | 2007-01-21 | Asia Optical Co Inc | Zoom lens apparatus |
| TW200809295A (en) * | 2006-08-03 | 2008-02-16 | Asia Optical Co Inc | Optical lens capable of preventing light leakage |
Also Published As
| Publication number | Publication date |
|---|---|
| TW201013247A (en) | 2010-04-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP3766609B2 (en) | Zoom lens barrel structure | |
| US7753598B2 (en) | Lens barrel | |
| JP4703992B2 (en) | Zoom lens barrel cam mechanism | |
| JP4789659B2 (en) | Lens barrel and camera | |
| JP2001215385A (en) | Cam driving mechanism for straight advance lens | |
| US5469300A (en) | Zoom lens barrel | |
| JP4628039B2 (en) | Lens barrel | |
| TWI420186B (en) | Can prevent the light of the telescopic lens | |
| JP4520253B2 (en) | Lens barrel | |
| JP3450780B2 (en) | Bayonet fixing device for annular member and zoom lens barrel | |
| JP2010164695A (en) | Lens barrel, photographing device and personal digital assistant device | |
| JP4722435B2 (en) | Zoom lens barrel cam mechanism | |
| US20080074759A1 (en) | Lens barrel | |
| JP5012919B2 (en) | Lens barrel and optical device | |
| JP3548479B2 (en) | Disassembly mechanism of zoom lens barrel | |
| US20050025476A1 (en) | Lens protection mechanism and camera with lens protection mechanism | |
| TWI486663B (en) | Optical device | |
| CN116027617A (en) | Camera device | |
| JPH09203842A (en) | Lens barrel | |
| CN115993749A (en) | Camera device | |
| JP3533131B2 (en) | Barrier opening and closing device for lens barrel | |
| JPH09243895A (en) | Device for energizing lens holding frame | |
| JP3920520B2 (en) | Zoom lens barrel | |
| JP2004184599A (en) | Lens barrel | |
| JP3490948B2 (en) | Barrier opening and closing device for lens barrel |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MM4A | Annulment or lapse of patent due to non-payment of fees |