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TW201116848A - Zoom lens - Google Patents

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Publication number
TW201116848A
TW201116848A TW98138513A TW98138513A TW201116848A TW 201116848 A TW201116848 A TW 201116848A TW 98138513 A TW98138513 A TW 98138513A TW 98138513 A TW98138513 A TW 98138513A TW 201116848 A TW201116848 A TW 201116848A
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TW
Taiwan
Prior art keywords
lens
lens group
focal length
group
zoom
Prior art date
Application number
TW98138513A
Other languages
Chinese (zh)
Inventor
Shi-Mu Lin
lu-hua Chen
sheng-fang Zheng
Original Assignee
Optronics Technology Inc A
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Publication date
Application filed by Optronics Technology Inc A filed Critical Optronics Technology Inc A
Priority to TW98138513A priority Critical patent/TW201116848A/en
Publication of TW201116848A publication Critical patent/TW201116848A/en

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Abstract

A zoom lens includes a first, a second, a third and a fourth lens groups that are arranged along an optical axis and from an object side to an image side in sequence. The refractive powers of the four lens groups are positive, negative, positive and positive, respectively. The first and the third lens groups are fixed at a fixed position. The second lens group is movable along the optical axis in accordance with a change of magnification. The fourth lens group is movable along the optical axis in accordance with keeping an image plane fixed at an image sensor. The present invention has at least four pieces of lens that are made of plastic material in order to achieve the purposes of decreasing camera lens weight and moving easily the lens groups. In addition, the present invention has small variation of aperture value and moderate zoom ratio, and has the advantage of compact size at the same time in order to decrease the whole volume of image capturing device. Furthermore, the aperture value (Fno) of the zoom lens is adjustable according to different image-capturing applications.

Description

201116848 、發明說明: 【發明所屬之技術領域】 本發明係有關於一種變焦鏡頭,尤指一種能應用於數位 攝影機(D V)、數位相機(D S C)等影像擷取裴置内之變焦鏡 頭。 【先刖技術】 隨著現代視訊技術的進步,諸如投影機、數位攝影機 及數位相機等影像裝置已被廣泛地使用。這些影像裝置中 的核心元件之一為變焦鏡頭,藉由變焦鏡頭的光學變焦可 使各種放大料;影像能清晰喊像,因此變焦鏡頭 的光學品質與景彡像成像的品質息息相關。 其中’美國專利申請案號第US2005/0099700A1號揭 ^種緊凑型的變线頭,其具有屈光能力分別為正、 I '山正、正之四群透鏡組。當該變㈣頭從廣角端位置向 置進行變焦時,其中的第—透鏡組和第三透鏡組固 結構雖然:Ϊ;透這種變焦鏡頭之 像系:者包號第,5,9_號提出—透鏡成 該第二透鏡群 與弟三魏群’該第—透鏡群與 (幾乎固定該第三4鏡群只移動少許距離 彩色攄光片及錢所組成,第三透鏡群更包括-(it 11 μ X 。但該專利所耗用之鏡片數目較多BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a zoom lens, and more particularly to a zoom lens lens that can be applied to an image capturing device such as a digital camera (D V) or a digital camera (D S C). [Advanced Technology] With the advancement of modern video technology, image devices such as projectors, digital cameras, and digital cameras have been widely used. One of the core components of these imaging devices is a zoom lens. The optical zoom of the zoom lens allows various kinds of amplification materials; the image can be clearly shouted, so the optical quality of the zoom lens is closely related to the quality of the image. The US Patent Application No. US2005/0099700A1 discloses a compact type of change head having four groups of lenses having refractive powers of positive, I'm positive and positive. When the variable (four) head is zoomed from the wide-angle end position, the lenticular lens group and the third lens assembly structure are: Ϊ; the image of the zoom lens: the package number, 5, 9_ No. - the lens is formed into the second lens group and the third group of the 'fourth group' and the lens group is composed of (approximately the third lens group is only moved a little distance from the color light film and the money, and the third lens group includes -(it 11 μ X. But the patent uses more lenses

(乂片外),:鏡頭體積較大,且成本亦高^ U 分別為正、負國專利案號第US5,285,316號提出屈光能力 、正、正排列之四群鏡片組,其採用十片鏡 201116848 片構成四群鏡片組之設計,第三群不動,非球面2面,藉 此提^像高3.3mm、總長67 mm、口徑14別麵之設計: 惟’前述習知技術中,採用第二及/或第四群鏡片組移動, 不僅在焦狀觀上缺乏變化,在提昇像素及亮度上會造 成整體尺寸紐縮小的情況,更使影像倍數受到限制,以 ^於無法得到適當倍數讀獅像,因此無法献高解析 又之要求同日寸,剷述習知技術所採用之鏡片數量較高, 導致製造成本亦隨之提高。 再者,美國專利案號第US6,714,355號提出3倍變焦、 FN『2·8之内容’令四群鏡片組之屈光能力分別為正負、 排歹丨採用十片鏡片構成四群鏡片組之設計卜第三 ^多動,非球面1面。然而,採用第二,第三,第四群鏡 m 2之m#、倍率上普遍不足,且存在最大光闌 者存在鏡片數過多之問題,故仍有無法解決變焦 叙頭被小化之問題。 六,卜’美國專利案號第us7,379,249號所揭露的内 二it用五個透鏡群組,並且所使用的ig片透鏡皆為 =材貝’因此所需花費的成本較高。再者,上述習知所 二之Fn〇 A 2.78〜4.02 ’因此習知變焦鏡頭的進光量變動 ”廣角令而與望遠端的進光量比為(4.02/2.78)2=2.09 口此白知望m端的進光量明顯地比望遠端小。 &,H ’美國專利案號第US7,453,647號所揭露的内 璃姑1: *肋個透鏡群組,並且所使㈣9 »透鏡皆為玻 為7貝糾其中二個透鏡群組為可活動式,並且總長度 ^ & * m目此所需花費的成本較高。再者,上述習知 在贋角時的FVm泉〇 〇(outside the film), the lens is large in size and costly. ^ U is the positive and negative national patent number No. US5,285,316, which proposes four groups of lenses with refractive power, positive and positive alignment, which adopts ten The mirror 201116848 consists of four groups of lens sets, the third group is immovable, and the aspherical surface is two sides, thereby providing a design with a height of 3.3 mm, a total length of 67 mm, and a caliber of 14: only the above-mentioned prior art, The use of the second and/or fourth group lens group movement not only lacks the change in the focal view, but also causes the overall size to be reduced in the pixel and brightness, and the image magnification is limited, so that the image cannot be properly obtained. By reading the lion image in multiples, it is impossible to provide high resolution and the same day size. The number of lenses used in the conventional technology is higher, resulting in higher manufacturing costs. In addition, U.S. Patent No. 6,714,355 proposes a 3x zoom, FN "2.8 content" so that the refractive power of the four groups of lenses is positive and negative, and the exhaust lens uses ten lenses to form a group of four lens groups. The design of the third is more than a moving, aspherical surface. However, the second, third, fourth group mirror m 2 m#, the magnification is generally insufficient, and there is a problem that the maximum number of lenses exists in the maximum aperture, so there is still no problem that the zoom head can be reduced. . The internal lens disclosed in U.S. Patent No. 7,379,249 discloses a group of five lenses, and the ig film lenses used are all of the materials, so that the cost is high. Furthermore, the above-mentioned conventional Fn〇A 2.78~4.02 'so the variation of the amount of light entering the zoom lens is wide-angled and the ratio of the amount of light entering the telephoto end is (4.02/2.78) 2=2.09. The amount of light entering the end is significantly smaller than that of the telephoto end. &, H'US Patent No. US Pat. No. 7,453,647, the disclosure of which is incorporated herein by reference. Among them, the two lens groups are movable, and the total length ^ & * m is more expensive. In addition, the above-mentioned FVm springs at the corners

no兩2.53〜4 72 ’因此習知變焦鏡頭的進光量I 201116848 變動較大,其廣角端與望 (4·72/2,53)2:3·48倍,因* 端的進光量比為 遠端小。 自相的進光量日_地比望 因此,本發明人有感上述缺失 =咖之相,驗,悉心觀察且研;之== ^運用’而提出-種設計合理且有效改善上述缺失 【發明内容】 丽要解決的技術問題,在於提供—種變隹鏡 可&amp;進光量及變焦比,並且同時能達到緊緻體積 =了解決上述技術問題,根擄本發明之其中 案,提供一種變焦鏡頭,其包括. 一绣浐淼紐 曰士 匕括.—具有正屈光能力之第 正、 光能力之第二透鏡群組、一且有 射立二Γ 鏡群組及一具有正屈光能力之第四 一透鏡群組係固定於—預定位置上。該第 树組係隨著該變焦鏡頭之放大倍率的變動而= 鏡,並且該透鏡係固定於—預組=有至少一透 係沿著該變隹置上。該第四透鏡群組 的心動’以保持該變焦鏡頭所產生 的成像面準確投财1像記錄器上。 組、該第二透鏡群組㈠亥第 /、甲°亥第透鏡群 传π菩…第一透鏡群組及該第四透鏡群組 二:该先軸並續焦鏡頭的物體側, 像側(Image Slde)依序排列,並且該第—透 透鏡群組、該第三透鏡群缸及 ’、’ μ第一 合下列三_ : 距係符 ; 〈川;條件(2): 201116848 1.2&lt;F1/F3&lt;1.4,以及條件⑶:i 1&lt;F4/化〇,/2 &lt;]L 4 ;其 中’ F1為該第一透鏡群組的焦距,F2為該第二透鏡群組 的焦距’ F3為該第三透鏡群組的焦距,Μ為該第四透鏡 群組的焦距’ Fw為廣角狀態時之焦距,並且&amp;為望遠狀 態時之焦距。 為了解決上述技術問題,根據本發明之其中一種方 案’提供一種變焦鏡頭,其包括:_具有正屈光能力之第 -透鏡群n有_光能力之第二透鏡群組、一具有 =屈光能力之第三透鏡群組及—具有正屈光能力之第四 鏡君f組。4第-透鏡群組係固定於—預定位置上。: :群組係隨著該變焦鏡頭之放大倍率的變動而沿著 n、、鏡頭之光轴移動。該第三透鏡群組係具有至少一透 該透鏡係固定於—預定位置上。該第四透鏡群組 鏡頭之光軸㈣,以保持該鏡頭所產生 細成^準確投射在一影像記錄器上。其中該第一透鏡群 #、1=第二透鏡群組、該第三透鏡群組及該第四透鏡群組 綠並從該變线頭的物體側至成像側依序排 -第鏡群組係由-第—透鏡、—第二透鏡及 透鏡,==所;成’該第二透鏡群組係由-第四 第一心紅 苐六透鏡依序排列所組成,並且該 件⑴frr該第二透鏡群組係符合下列兩組條件:條 盆十,^ 二:/’3&lt;2·2 ’·以及條件(2)··3&lt;Λ6/Λ&lt;4; 的隹距鏡群組之第一透鏡及第二透鏡所合成 /為,第,第一透鏡群組之第三透鏡所合成的焦距, 為兮第n鏡群蚊細透鏡所合成的;t距,並且Λ6 …弟—魏群組之第五透鏡及第六透鏡所合成的焦距h 7 201116848 為了解決上述技術問題,根攄本發明之其中一種方 案,提供-種變焦鏡頭,其包括:一具有正屈光能力之第 -透鏡群組、-具有貞料能力之第二透鏡馳、一具有 ^屈光能力之第三透鏡群組及—具有正屈光能力之第四 、鏡群組。該第-透鏡群組侧定於—預定位置上。 二透鏡群組係隨著該變焦鏡頭之放大倍率的變動而二著 f變焦鏡頭之光軸移動。該第三透鏡群組係具有至少I透 且該透鏡係固定於—預定位置上。該第四透鏡群組 的謂錄較料㈣,以轉域頭 組、今第一靜敌Γ办像兒錄益上。其中該第一透鏡群 其中,η為以及條件(2):〇.5&lt;以心0.7; F4為5亥第四透鏡群組 焦距,並且Μ望遠狀態時之焦距。W為廣錄態時之 f了解決上述技術問題,根 案,提供一種變隹錆瓸,甘虛ro 月之其中—種方 該變焦鏡頭係包括.結於—影像掏取農置’其中 1有負=二T屈先能力之第-透鏡群組、 Θ貝准尤月匕刀之苐二透鏡群紐、—日士 第三透鏡群組及-具有正屈、/、有正屈光能力之 ::透鏡群組係固定於一預==2第四透鏡群組。該第 者該變焦鏡頭之放大俨率的料邊第二透鏡群組係隨 :,該第三透鏡二==:變,之光 二口疋於一預定位置上。該第 透,見並且该透鏡 頌之光軸移動,以保持該變隹鏡頭=群組係沿著該變焦鏡 、鏡碩所產生的成像面準確投 201116848 3鏡光闌係沿著該光轴且設置於該第 組、該第二透鏡群組Ί且一H。其中’該第一透鏡群 ^ °亥弟二透鏠群組及該第四透鏡群組 列’T 該變焦鏡頭的物體側至成像侧依序排 f群Γ且由ί第—透鏡群組、該第二透鏡群組、該第三透 組成之變焦鏡頭係組裝於該 因此,本發明的有益效果在於:No two 2.53~4 72 'Therefore, the amount of light entering the zoom lens I 201116848 is large, and the wide-angle end is expected to be (4·72/2, 53) 2:3·48 times, because the ratio of the amount of light entering the * end is far The end is small. Since the amount of light entering the phase is relatively high, the inventors have felt that the above-mentioned missing = the phase of the coffee, the inspection, the careful observation and the research; the == ^ the use of 'property' design is reasonable and effective to improve the above-mentioned defects [invention Content] The technical problem to be solved by Li is to provide a kind of frog mirror with & the amount of light entering and the zoom ratio, and at the same time to achieve compact volume = to solve the above technical problems, according to the present invention, provide a zoom The lens, which includes: an embroidered 浐淼 New 匕 匕 . — — — — — — — 具有 具有 具有 具有 具有 具有 具有 具有 具有 具有 具有 具有 具有 具有 具有 具有 具有 具有 具有 具有 具有 具有 具有 具有 具有 具有 具有 具有 具有 具有 具有The fourth lens group of abilities is fixed at a predetermined position. The first tree group is mirrored with the magnification of the zoom lens, and the lens is fixed to the pre-set = at least one of the transmissive lines is disposed along the variable. The heartbeat of the fourth lens group is accurately deposited on the image recorder by maintaining the image plane produced by the zoom lens. a group, the second lens group (1) Haidi/, a ̄ ̄ ̄ ̄ ̄ 透镜 ... ... ... 第一 第一 第一 第一 第一 第一 第一 第一 第一 第一 第一 第一 第一 第一 第一 第一 第一 第一 第一 第一 第一 第一 第一 第一 第一 第一 第一 第一 第一 第一(Image Slde) is arranged in order, and the first through lens group, the third lens group cylinder, and ', 'μ first are combined with the following three _: distance coefficient; <chuan; condition (2): 201116848 1.2&lt;; F1/F3 &lt; 1.4, and condition (3): i 1 &lt; F4 / 〇, /2 &lt;] L 4 ; where 'F1 is the focal length of the first lens group, and F2 is the focal length of the second lens group 'F3 is the focal length of the third lens group, Μ is the focal length of the fourth lens group's focal length 'Fw when it is in the wide-angle state, and &amp; is the focal length in the telephoto state. In order to solve the above technical problem, according to one aspect of the present invention, a zoom lens is provided which includes: a first lens group having positive refractive power, a second lens group having _light capability, and one having = refraction The third lens group of abilities and the fourth mirror group f with positive refractive power. 4 The first lens group is fixed at a predetermined position. : : The group moves along the optical axis of the lens along the n, as the magnification of the zoom lens changes. The third lens group has at least one lens system fixed to a predetermined position. The optical axis (4) of the lens of the fourth lens group is such that the fine lens produced by the lens is accurately projected onto an image recorder. The first lens group #1, 1=the second lens group, the third lens group, and the fourth lens group are green and are sequentially arranged from the object side to the imaging side of the change head to the mirror group. And the second lens group is composed of - the fourth first heart red six lens sequentially arranged, and the piece (1) frr the first The two lens group is in accordance with the following two conditions: the basin 10, ^ 2: / '3 &lt; 2 · 2 '· and the condition (2) · · 3 &lt; Λ 6 / Λ &lt;4; a lens and a second lens are combined, and the focal length synthesized by the third lens of the first lens group is synthesized by the nth mirror group mosquito lens; t distance, and Λ6...di-wei group In order to solve the above technical problem, according to one aspect of the present invention, a zoom lens comprising: a first lens having positive refractive power is provided Group, a second lens with the ability to dip, a third lens group with refractive power, and a fourth with positive refractive power , mirror group. The first lens group side is positioned at a predetermined position. The two lens group moves with the optical axis of the f zoom lens as the magnification of the zoom lens changes. The third lens group has at least one pass and the lens is fixed at a predetermined position. The predicate of the fourth lens group is better than (4), and it is recorded in the first group of the enemy. Wherein the first lens group, wherein η is and the condition (2): 〇.5 &lt; with a heart of 0.7; F4 is a focal length of the fourth lens group of 5 Hz, and the focal length of the telephoto state. W is the wide-ranging state of the time to solve the above technical problems, the root case, to provide a kind of change, the glory of the month of the moon - the kind of the zoom lens system includes: the image - the image of the farmer's 1 The first lens group with negative = two T first abilities, the second lens group with the Θ 准 尤 尤 尤 尤 尤 尤 尤 尤 尤 尤 尤 尤 尤 尤 尤 尤 尤 尤 尤 尤 尤 尤 尤 尤 尤 尤 尤 尤 尤 尤The :: lens group is fixed to a pre-==2 fourth lens group. The second lens group of the magnification of the zoom lens of the first lens is followed by: the third lens is changed to a predetermined position. The first through, see and the optical axis of the lens is moved to maintain the variable lens = group along the zoom lens, the mirror image produced by the mirror is accurately projected 201116848 3 mirror light along the optical axis And disposed in the first group, the second lens group, and an H. Wherein the first lens group and the fourth lens group column 'T the object side to the imaging side of the zoom lens are sequentially arranged by the group of lenses, The second lens group and the third transparent zoom lens are assembled. Therefore, the beneficial effects of the present invention are as follows:

的、佳!^本發明具有較小的進光量變化(廣角端與望遠端 料(3.39/2.84)2=1.42倍)及適中的變焦比:(5 ’並且同時具有緊緻體積之優勢,以減·少影 像擷取裝置的整體體積。 2本^明之變焦鏡頭之光闌係可隨著不同的影像掏 -用日J改#其fn◦。例如:當拍攝動態影像而需要較大 =光里4 ’可翻較小的FN。;當拍攝靜態影像而需要 較南的解減時,可f祕大的ΡΝ。。 、、3、本發0歧少具有4牧由轉材質所製成的透鏡, 以達到減輕鏡頭重量及方便驅動鏡組的目的。 為了能,進一步瞭解本發明為達成預定目的所採取 之技術、手段及功效,請參咖下有關本發明之詳細說明 與附圖’相信本發明之㈣、特徵與特點,當可由此得一 深入且具叙瞭解,然祕賴式健供參考與說明用, 並非用來對本發明加以限制者。 【實施方式】 〃,參閱第1圖至第—c_示’其分別顯示本發明 第貝她例之受焦鏡頭的各透鏡群組在廣角端(Wide)(索 201116848 了 = 標準位置(N_ai)(第一_)及望遠端_ 第c圖)三種型態下之透鏡配置示意圓。 揭露鏡頭是由1〇片透鏡所組成。由圖中所 :編第—透鏡軸G卜一第二透鏡群組⑺、一第三透 鮮:且G3及—第四透鏡群組G4。其中該苐— 屈光Γ力第1鏡群組⑺及該第四透鏡群組G4皆具有正 利=第二透鏡群組G2係具有負屈光能力。 2用4第-透鏡群組⑴、該第二魏群組Μ =二及該第四透鏡群組G4彼此之間的間隔-:==::組間沿著光軸z方向的間距),即可 括右之較佳實施财,該第—透鏡群組G1係包 第二、^透1兒U、一第二透鏡匕2及—第三透鏡L3。該 及U群組G2係包括有—第四透鏡L4、—第五透鏡l5 铲丁7 ^^L6。该第二透鏡群組⑺係為單一的第七透 =^亥第四透鏡群組G4係包括有一第八透鏡^、一第 二透=L9及一第十透鏡u〇。此外,位於第七透鏡u前 :為-先闌A(亦即該光闌八係沿著該光轴冗且設置於 &quot;第二透鏡群組G2及第三透鏡群紐G3之間),並且該光 闌A的大小係可隨著使用的需要而進行調整。 #本《明之第五透鏡L5、第六透^L6、以透鏡口、 2透鏡L9及第十透鏡L1〇較佳乃是以塑膠材質製成的 2 ,其他的透鏡則可使用一般常用的玻璃透鏡,藉此可 有效達到減輕鏡難量及方便驅崎組的目的,所以本發 明具有尺寸緊緻及維持影像品質之優點。第一圖中的幻 201116848 至s2〇為各透鏡之光學表面編號,D1至⑽ 表面之間_向麟。 心各先于 &gt;々換s之’該第一透鏡群組〇1係固定於_預定位置上。 該第二透鏡群組G2係隨著該變鎌頭之 ° ==變焦鏡頭之光W移動。該第三透鏡群 '、夕透鏡(亦即第七透鏡1&quot;7),並且該透鏡係固定於 ::員定位置上。該第四透鏡群組G4係沿著該變隹之 變焦鏡頭所產生的成像㈣確投射 . 喵乐一逍龢鲆組G2、該第三诱 條件⑴、:組㈣ 條件(2) : U&lt;jP1/jP3&lt;1,4 ;以及 條件⑶:; =焦以;;鏡2的焦™第二透鏡拜 鏡群組的焦距組的焦距,F4為該第四遷 狀態時之焦距。廣 _之焦距’並且Ft為望遠 另外’ §亥第一透鐘群^日ρ,丄 鏡群組(32 _的多彳gjm 中的多個透鏡及§亥第二遷 條件⑴.i: /鏡係符合下列兩組條件: 保件⑴· 1.9&lt;7?|2/式&lt;22;以 條件(2): 3&lt;A6/a&lt;4 ; 二,群組之第—透鏡及第二透鏡所合成 凡為該第鏡所合成_, 弟四透鏡所合成的焦距,並且y?Sfr 201116848 為該第二透鏡群組之第五透鏡及第六透鏡所合成的焦距。 為了達到5倍的變焦比,第四透鏡群組G4需符合卞 列兩組條件: 條件(1) : 2.2&lt;F4/^&lt;2.7 ;以及 條件(2) : 〇.5&lt;巧/^&lt;〇7 ; 其中,F4為該第四透鏡群組的焦距,Fw為廣角狀態時之 焦距,並且FT為望遠狀態時之焦距。 另外’本發明之變焦鏡頭係可應用於一影像搁取裝置 (例如:傳統相機、數位相機、數位攝影機等)。換言之, 由該第-透鏡群組G1、該第二透鏡群組G2、該第^透鏡 群組G3及該第四魏群組G4^成之變f、鏡頭係可組裝 於該影像擁取裝置内。 第一 D圖表示第一實施例處於廣角型態時之像曲線 圖,第-E®表示第-實施例處於標準位置型態時之像曲 線圖表π第-實施例處於望遠型態時之像曲線 圖。 貫施例一的數據請參考下表所示,其中r表示各透鏡 表面之曲率半徑(編號由S1至S20),D表示各光學表面之 間的軸向距離(編號由D1至D20),nd表示各光學表面之折 射率’ v表示各光學表面之阿貝數(Abbe value,表示材料 的色散(chromatic dispersion)特 j生 鉍作、。 表面 R D Hd y __瘦號(曲率半徑)(厚度)(折射率、(阿貝魁、 Ϊ 35.112 ^509~ΤδδΤΤΓ1 2 22.417 3.379 1_62 63'〇 3 133.992 0.100 4 21.844 2:747 1.64 60.1 5 60.016 variable 6 -246.365 0.999 1.70 55.5 201116848 7 5.199 2.461 8 12.695 1.859 1.52 56.3 9 5.840 0.953 10 29.268 1.911 1.61 26.6 11 -21.210 variable 12 Infinity 0.487 13 9.534 1.141 1.52 56.3 14 23.651 variable 15 14.758 1.474 1.92 18.9 16 7.910 0.100 17 6.702 3.040 1.52 56.3 18 -33.817 0.500 19 12.094 2.203 1.52 56.3 20 18.044 variable 變數D5、Dll、D14與D20相對於不同 係分別如下: Wide Normal Tele f 6.62 15.03 31.78 Fno 2.84 3.1 3.26 2ω 61° 29。 14° D5 1.699 10.449 16.645 D11 16.047 7.297 1.101 D14 5.484 3.132 1.985 D20 11.465 13.817 14.964 其中f表示對應於廣角端、標準端與望遠端的系統焦 距,FNO表示對應於廣角端、標準端與望遠端的光闌口徑, 2ω表示對應於廣角端、標準端與望遠端的視角。 再者,該等透鏡中,光學表面編號S8至Sll、S13、 S14及S17至S20為非球面,其非球面係數資料分別如下 所示: 表面 Κ Α4 Α6 八8The invention has a small change in the amount of light incident (wide-angle end and telephoto end material (3.39/2.84) 2 = 1.42 times) and a moderate zoom ratio: (5 ' and at the same time has the advantage of compact volume, Reduce the overall volume of the image capture device. 2 The brightness of the zoom lens can be different with different images. Use the Japanese J to change its fn◦. For example, when shooting a motion picture, you need a larger = light 4 'It can turn a small FN. When shooting a still image and need a southerly reduction, it can be a big ΡΝ ΡΝ 。 ΡΝ ΡΝ ΡΝ ΡΝ ΡΝ 本 本 本 本 本 本 本 本 本 本 本 本 本 本 本 歧Lens, in order to achieve the purpose of reducing the weight of the lens and facilitating the driving of the lens set. In order to further understand the techniques, means and effects of the present invention for achieving the intended purpose, please refer to the detailed description and drawings of the present invention. The invention is not limited to the scope of the invention, and is not intended to limit the invention. [Embodiment] 第, refer to Fig. 1 to -c_ shows 'they respectively show the first For example, each lens group of the subject lens has a lens configuration at the wide angle end (Wide 201116848 = standard position (N_ai) (first_) and telephoto end_c). The lens is composed of a single lens. As shown in the figure: the lens - the lens axis G - a second lens group (7), a third transmissive: and G3 and - the fourth lens group G4. — The dioptric first lens group (7) and the fourth lens group G4 both have positive = the second lens group G2 has negative refractive power. 2 uses 4th lens group (1), the second Wei Group Μ = 2 and the interval between the fourth lens group G4 -: ==:: the distance between the groups along the optical axis z direction), which may include the right lens, the first lens The group G1 is provided with a second, a second lens, a second lens, and a third lens L3. The U group G2 includes a fourth lens L4, a fifth lens l5, and a shovel 7^^L6. The second lens group (7) is a single seventh lens group. The fourth lens group G4 includes an eighth lens, a second through-L9, and a tenth lens. In addition, before the seventh lens u: is - precedence A (that is, the pupil is arranged along the optical axis and is disposed between the &quot;second lens group G2 and the third lens group G3), And the size of the aperture A can be adjusted as needed for use. #本明的第一透镜 L5, sixth through L6, lens port, 2 lens L9 and tenth lens L1〇 are preferably made of plastic material 2, other lenses can use the commonly used glass lens Therefore, the purpose of reducing the difficulty of the mirror and facilitating the group of the sarcophagus can be effectively achieved, so that the present invention has the advantages of compact size and image quality. The illusion 201116848 to s2 in the first figure is the optical surface number of each lens, and the distance between the D1 and (10) surfaces is _. The first lens group 〇1 is fixed to the predetermined position before the heart is replaced by &gt; s. The second lens group G2 moves with the light W of the zoom lens of the change head. The third lens group ', the eve lens (i.e., the seventh lens 1 &quot; 7), and the lens system is fixed at a position of ::. The fourth lens group G4 is projected along the imaging (four) generated by the variable zoom lens. 喵乐一逍 and 鲆 group G2, the third tempting condition (1), group (4) condition (2): U&lt;jP1/jP3&lt;1,4; and condition (3):; = focus;; focal length of the focal length of the lens 2 of the second lens of the mirror 2, and F4 is the focal length of the fourth transition state. Wide _ focal length 'and Ft is telephoto and another ' § Hai first clock group ^ day ρ, 丄 mirror group (32 _ more than gjm multiple lenses and § hai second migration conditions (1). i: / The mirror system meets the following two sets of conditions: Warranty (1)· 1.9 &lt;7?|2/式&lt;22; with condition (2): 3&lt;A6/a&lt;4; II, group of the first lens and second The focal length synthesized by the lens is synthesized by the lens, and the focal length synthesized by the fourth lens is y?Sfr 201116848 is the focal length synthesized by the fifth lens and the sixth lens of the second lens group. For the zoom ratio, the fourth lens group G4 is required to meet the two sets of conditions: Condition (1): 2.2 &lt; F4 / ^ &lt;2.7; and Condition (2) : 〇. 5 &lt; Qiao / ^ &lt; 〇 7 ; Wherein, F4 is the focal length of the fourth lens group, Fw is the focal length in the wide-angle state, and FT is the focal length in the telephoto state. Further, the zoom lens of the present invention can be applied to an image capturing device (for example: conventional a camera, a digital camera, a digital camera, etc.), in other words, the first lens group G1, the second lens group G2, the second lens group G3, and the fourth Wei group G4 f. The lens system can be assembled in the image capturing device. The first D diagram shows the image of the first embodiment in the wide-angle mode, and the -E® indicates the image of the first embodiment in the standard position mode. The graph of the graph π is in the telephoto mode. The data of the first example is shown in the table below, where r represents the radius of curvature of each lens surface (numbered from S1 to S20), and D represents each The axial distance between the optical surfaces (numbered from D1 to D20), nd indicates the refractive index of each optical surface 'v' represents the Abbe number of each optical surface (abbe value, indicating the chromatic dispersion of the material) Surface RD Hd y __Skinny (curvature radius) (thickness) (refractive index, (Abeque, Ϊ 35.112 ^ 509 ~ Τ δ δ ΤΤΓ 1 2 22.417 3.379 1_62 63' 〇 3 133.992 0.100 4 21.844 2: 747 1.64 60.1 5 60.016 variable 6 -246.365 0.999 1.70 55.5 201116848 7 5.199 2.461 8 12.695 1.859 1.52 56.3 9 5.840 0.953 10 29.268 1.911 1.61 26.6 11 -21.210 variable 12 Infinity 0.487 13 9.534 1.141 1.52 56.3 14 23.651 variable 1 5 14.758 1.474 1.92 18.9 16 7.910 0.100 17 6.702 3.040 1.52 56.3 18 -33.817 0.500 19 12.094 2.203 1.52 56.3 20 18.044 variable The variables D5, Dll, D14 and D20 are as follows for different systems: Wide Normal Tele f 6.62 15.03 31.78 Fno 2.84 3.1 3.26 2ω 61° 29. 14° D5 1.699 10.449 16.645 D11 16.047 7.297 1.101 D14 5.484 3.132 1.985 D20 11.465 13.817 14.964 where f denotes the focal length of the system corresponding to the wide-angle end, the standard end and the telephoto end, and FNO denotes the aperture diameter corresponding to the wide-angle end, the standard end and the telephoto end, 2ω represents the angle of view corresponding to the wide-angle end, the standard end and the telephoto end. Furthermore, in these lenses, the optical surface numbers S8 to S11, S13, S14 and S17 to S20 are aspherical surfaces, and the aspherical coefficient data are as follows: Surface Κ Α4 Α6 8 8

A 12 S8S9S10S11S13S14 -1.35E-03 2.42E-05 5.42E-05 -2.75E-04 4.93E-04 7.24E-05 4.07E-06 -6.90E-05 -7.03E-06 -1.88E-05 1.60E-05 1.47E-05 2.34E-06 6.09E-06 2.31 E-06 4.83E-07 1.84E-06 3.02E-06 -7.55E-08 -2.06E-07 -2.17E-08 -1.51E-08 -1.49E-07 -2.31 E-07 1.53E-11 1.71E-09 -5.23E-12 -2.56E-10 8.57E-09 1.13E-08 I3 201116848 υ ·5·75Ε-04 -4.32Ε-06 ·4 91 Ε-ίϊΓ ο λγΓ - 0 -2.91 Ε-05 1.78Ε-06 -1.19Ε-06 Rotp'no ^·50Ε'09 0 1.83Ε-04 -7.02Ε-06 1 48Ε-07 〇 ·1·42Ε_09 0 巡-03 3.40Ε-05 2:8RF-nI ^關 --2.57Ε-07 1.28Ε-08 517 518 519 520 --一如 -^.57E-f 上述之非球面在徑向之方程式可表示為: Ζ _____ CT2 4 … ‘、、 ^+4^^+1)〇Ψ + ΑαΥ + ΑβΥ6 ^ Α^γ'+ Α〇Υ10 + ΑηΥη 其中’Ζ值為_(sag),c(叫/r)為非球面曲率, j曲面常數,Y為與透鏡光軸Zf直之高度,&amp;為4階 A10為10階非球面係數,Al2為12階非球面係數。 =參閱第二A圖至第二C圖所示,其分別顯示本 第-貫施例之變线頭的各透鏡群组㈣ “A 12 S8S9S10S11S13S14 -1.35E-03 2.42E-05 5.42E-05 -2.75E-04 4.93E-04 7.24E-05 4.07E-06 -6.90E-05 -7.03E-06 -1.88E-05 1.60E -05 1.47E-05 2.34E-06 6.09E-06 2.31 E-06 4.83E-07 1.84E-06 3.02E-06 -7.55E-08 -2.06E-07 -2.17E-08 -1.51E-08 -1.49E-07 -2.31 E-07 1.53E-11 1.71E-09 -5.23E-12 -2.56E-10 8.57E-09 1.13E-08 I3 201116848 υ ·5·75Ε-04 -4.32Ε-06 ·4 91 Ε-ίϊΓ ο λγΓ - 0 -2.91 Ε-05 1.78Ε-06 -1.19Ε-06 Rotp'no ^·50Ε'09 0 1.83Ε-04 -7.02Ε-06 1 48Ε-07 〇·1· 42Ε_09 0 巡-03 3.40Ε-05 2:8RF-nI ^Off--2.57Ε-07 1.28Ε-08 517 518 519 520 --一如-^.57E-f The above aspherical equation in the radial direction can be Expressed as: Ζ _____ CT2 4 ... ',, ^+4^^+1)〇Ψ + ΑαΥ + ΑβΥ6 ^ Α^γ'+ Α〇Υ10 + ΑηΥη where 'Ζ value is _(sag), c(called / r) is the aspheric curvature, j is the surface constant, Y is the height straight to the optical axis Zf of the lens, &amp; is 4th order A10 is the 10th order aspheric coefficient, and Al2 is the 12th order aspheric coefficient. = Referring to Figs. 2A to 2C, which respectively show the lens groups (4) of the change head of the present embodiment.

圖)、標準位置(第二B圖)及望遠端(第 f — A 型態下之透鏡配置示意圖。因此,第二實施例= 例相同,都是* 10片透鏡所組成。第二D圖表 = 施例處於廣角型態時之像曲線圖;f_ 、第一貫 例處於標準位置型態時之像曲線圖;第二 貫施 施例處於望遠型態時之像曲線圖。 、不第二實Figure), standard position (second B picture) and telephoto end (the f-type A lens configuration diagram. Therefore, the second embodiment = the same example, is composed of * 10 lenses. The second D chart = the graph of the image when the instance is in the wide-angle mode; f_, the image of the first instance when it is in the standard position; the image of the second embodiment when it is in the telephoto mode. real

14 201116848 11 961.695 variable 12 Infinity 0.489 13 9.997 1.140 1.52 66.1 14 30.163 variable 15 16.568 0.899 1.92 22.4 16 8.801 0.095 17 6.951 3.163 1.52 70.3 18 -37.327 0.500 19 8.597 2.203 1.52 70.0 20 10.498 variable 變數D5、Dll、D14與D20相對於不同變焦位置的關 係分別如下:14 201116848 11 961.695 variable 12 Infinity 0.489 13 9.997 1.140 1.52 66.1 14 30.163 variable 15 16.568 0.899 1.92 22.4 16 8.801 0.095 17 6.951 3.163 1.52 70.3 18 -37.327 0.500 19 8.597 2.203 1.52 70.0 20 10.498 variable Variables D5, Dll, D14 and D20 are relative The relationship at different zoom positions is as follows:

Wide Normal Tele f 6.62 15.03 33 Fno 2.84 3.07 3.39 2ω 61 29 13 D5 1.702 10.472 16.750 D11 16.040 7.272 1.000 D14 7.024 4.261 2.001 D20 11.393 14.156 16.415Wide Normal Tele f 6.62 15.03 33 Fno 2.84 3.07 3.39 2ω 61 29 13 D5 1.702 10.472 16.750 D11 16.040 7.272 1.000 D14 7.024 4.261 2.001 D20 11.393 14.156 16.415

再者,該等透鏡中,光學表面編號S8至Sll、S13、 S14及S17至S20為非球面,其非球面係數資料分別如下 *·;· · 所示: 表面 K A4 八6 As A10 A12 S8 0 -9.86E-04 1.71E-06 1.69E-06 -7.73E-08 9.56E-10 S9 0 -1.42E-03 -8.21 E-05 6.30E-06 -2.14E-07 1.65E-09 S10 0 8.20E-04 -6.61 E-05 2.89E-06 -2.47E-08 -5.39E-10 S11 0 2.60E-04 1.45E-05 -3.46E-07 3.24E-08 0.00E+00 S13 0 9.71 E-05 9.87E-06 1.08E-06 -1.51E-07 7.83E-09 S14 0 2.72E-04 -4.47E-06 3.42E-06 -2.90E-07 1.11E-08 S17 0 -4.99E-04 -1.20E-06 3.26E-07 1.70E-08 -1.81 E-09 S18 0 -5.31 E-04 -7.01 E-06 -6.27E-07 5.34E-08 -1.98E-09 S19 0 1.48E-03 -3.50E-06 3.95E-07 -1.04E-07 2.10E-09 S20 0 2.55E-03 3.72E-05 3.02E-06 -4.48E-07 1.16E-08Further, in the lenses, the optical surface numbers S8 to S11, S13, S14, and S17 to S20 are aspherical surfaces, and the aspherical coefficient data are as follows: *····: Surface K A4 八6 As A10 A12 S8 0 -9.86E-04 1.71E-06 1.69E-06 -7.73E-08 9.56E-10 S9 0 -1.42E-03 -8.21 E-05 6.30E-06 -2.14E-07 1.65E-09 S10 0 8.20E-04 -6.61 E-05 2.89E-06 -2.47E-08 -5.39E-10 S11 0 2.60E-04 1.45E-05 -3.46E-07 3.24E-08 0.00E+00 S13 0 9.71 E -05 9.87E-06 1.08E-06 -1.51E-07 7.83E-09 S14 0 2.72E-04 -4.47E-06 3.42E-06 -2.90E-07 1.11E-08 S17 0 -4.99E-04 -1.20E-06 3.26E-07 1.70E-08 -1.81 E-09 S18 0 -5.31 E-04 -7.01 E-06 -6.27E-07 5.34E-08 -1.98E-09 S19 0 1.48E-03 -3.50E-06 3.95E-07 -1.04E-07 2.10E-09 S20 0 2.55E-03 3.72E-05 3.02E-06 -4.48E-07 1.16E-08

請參閱第三A圖至第三C圖所示,其分別顯示本發明 第三實施例之變焦鏡頭的各透鏡群組在廣角端(第三A 201116848 圖)、標準位置(第三B圖)及望遠端(第三C圖)三種 型態下之透鏡配置示意圖。因此,第三實施例與第一實施 例相同,都是由10片透鏡所組成。第三D圖表示第三實 施例處於廣角型態時之像曲線圖;第三E圖表示第三實施 例處於標準位置型態時之像曲線圖;第三F圖表示第三實 施例處於望遠型態時之像曲線圖。 實施例三的數攄請參考下表所示: 表面 編號 R (曲率半徑) D (厚度) nd Vd (折射率)(阿貝數) 1 32.678 1.489 1.85 23.8 2 21.42 3.461 1.62 63.3 3 114.735 0.1 4 22.48 2.661 1.64 60.1 5 59.863 variable 6 -340.614 0.999 1.70 55.5 7 5.203 2.431 8 12.672 1.939 1.52 56.3 9 5.84 0.953 10 29.268 1.883 1.61 26.6 11 -21.784 variable 12 Infinity 0.8908 13 9.522 1.141 1.52 56.3 14 24.594 variable 15 15.175 1.488 1.92 18.9 16 8.043 0.1 17 6.697 2.726 1.52 56.3 18 -38.234 0.5 19 12.0865 2.201 1.52 56.3 20 18.832 variable 變數D5、D11、D14與D20相對於不同變焦位置的關 係分別如下:Please refer to FIG. 3A to FIG. 3C, which respectively show the lens groups of the zoom lens according to the third embodiment of the present invention at the wide-angle end (third A 201116848 diagram) and standard position (third B diagram). And the telescopic configuration of the three types of teledes (the third C picture). Therefore, the third embodiment is the same as the first embodiment and is composed of ten lenses. The third D diagram shows the image diagram of the third embodiment in the wide-angle mode; the third E diagram shows the image diagram of the third embodiment in the standard position mode; and the third F diagram shows that the third embodiment is in the telephoto The graph of the pattern at the time of the pattern. For the number of the third embodiment, please refer to the following table: Surface number R (radius of curvature) D (thickness) nd Vd (refractive index) (Abbe number) 1 32.678 1.489 1.85 23.8 2 21.42 3.461 1.62 63.3 3 114.735 0.1 4 22.48 2.661 1.64 60.1 5 59.863 variable 6 -340.614 0.999 1.70 55.5 7 5.203 2.431 8 12.672 1.939 1.52 56.3 9 5.84 0.953 10 29.268 1.883 1.61 26.6 11 -21.784 variable 12 Infinity 0.8908 13 9.522 1.141 1.52 56.3 14 24.594 variable 15 15.175 1.488 1.92 18.9 16 8.043 0.1 17 6.697 2.726 1.52 56.3 18 -38.234 0.5 19 12.0865 2.201 1.52 56.3 20 18.832 variable The relationship of variables D5, D11, D14 and D20 with respect to different zoom positions are as follows:

Wide Normal Tele f 6.62 15.03 31.77 Fno 2.84 3.1 3.29 2ω 61 29 14 D5 1.700 10.478 16.645 201116848Wide Normal Tele f 6.62 15.03 31.77 Fno 2.84 3.1 3.29 2ω 61 29 14 D5 1.700 10.478 16.645 201116848

15.645 5.770 11.480 6.867 〇^9~- 3.345 2.025 #者,該等透鏡尹,光段 〇17 E 光予表面編號S8至SJ1、Si3、 S14及s17至S20為非球面, y ,、非球面係數資料分別如下 所示:15.645 5.770 11.480 6.867 〇^9~- 3.345 2.025 #者, these lenses Yin, light segment 〇 17 E light surface number S8 to SJ1, Si3, S14 and s17 to S20 are aspherical, y, aspheric coefficient data They are as follows:

表面 K A) 58 59 510 511 513 514 517 518 519 520 0 0 0 0 0 0 0 0 0 0 ^t32E-〇3 -2.43E-03 5.42E-05 -2.62E-05 4.71 E-04 6.94E-04 -5.91 E-04 -3.33E-06 1.89E-04 2.26E-Q4 Αβ 3.49Ε-06 -6.91 Ε-06 -7.03Ε-05 -1.88Ε-05 1.51Ε-05 1.78Ε-05 -3.31 Ε-06 -1.49Ε-05 -6.05Ε-06 2.95Ε-05 2·3〇Ε-〇6 6·〇9Ε-〇6 2.31 Ε-06 4·97Ε-〇7 1·9〇Ε-〇6 2·23Ε-〇6 '5〇5Ε-〇7 '1·4〇Ε-〇6 1·2ΐΕ-〇7 ^59Ε-〇6 Αιο -6.65Ε-08 -2.06Ε-07 -2.17Ε-08 -1.58Ε-08 -1.55Ε-07 -1.50Ε-07 2.36Ε-08 6.71 Ε-08 -3.04Ε-08 -3.0QE-08 Αΐ2 •3.69Ε-10 1.71Ε-09 -5.23Ε-12 -2.18Η-10 1.04Ε-08 9.08Ε-09 -1.77Ε-09 -1.10Ε-09 2.5,1 Ε-09 1.40Ε-08 請=第四Α圖至第%圖所示,其分別顯示本發明第四^鏡Γ切鱗組在廣㈣(第= 圖)、梯準位置(苐四B圖)及望遠端(第四 型態下之錢配置示顏。因此,第 例相同,都是* H)片透鏡所組成。第四 施例處於廣肖型態時之像曲線圖;第四=弟=貫 例處於標準位置型態時之像曲線圖;第四ρ圖表=貫, 施例處於望遠型態時之像曲線圖。 &amp;、弟四貫 實施例四的數據請參考下表所示:Surface KA) 58 59 510 511 513 514 517 518 519 520 0 0 0 0 0 0 0 0 0 0 ^t32E-〇3 -2.43E-03 5.42E-05 -2.62E-05 4.71 E-04 6.94E-04 -5.91 E-04 -3.33E-06 1.89E-04 2.26E-Q4 Αβ 3.49Ε-06 -6.91 Ε-06 -7.03Ε-05 -1.88Ε-05 1.51Ε-05 1.78Ε-05 -3.31 Ε- 06 -1.49Ε-05 -6.05Ε-06 2.95Ε-05 2·3〇Ε-〇6 6·〇9Ε-〇6 2.31 Ε-06 4·97Ε-〇7 1·9〇Ε-〇6 2· 23Ε-〇6 '5〇5Ε-〇7 '1·4〇Ε-〇6 1·2ΐΕ-〇7 ^59Ε-〇6 Αιο -6.65Ε-08 -2.06Ε-07 -2.17Ε-08 -1.58Ε -08 -1.55Ε-07 -1.50Ε-07 2.36Ε-08 6.71 Ε-08 -3.04Ε-08 -3.0QE-08 Αΐ2 •3.69Ε-10 1.71Ε-09 -5.23Ε-12 -2.18Η-10 1.04Ε-08 9.08Ε-09 -1.77Ε-09 -1.10Ε-09 2.5,1 Ε-09 1.40Ε-08 Please = the fourth figure to the % figure show the fourth mirror of the present invention The cut scale group is in the wide (four) (figure = map), the stepped position (苐 four B map) and the telephoto end (the fourth type of money is configured to display the face. Therefore, the same example is * H) sheet lens Composed of. The fourth example is in the image curve of the broad-mode type; the fourth=di is the image curve when the standard is in the standard position type; the fourth ρ chart is the same, the image curve when the example is in the telephoto mode Figure. &amp; Four, the data of the fourth embodiment, please refer to the following table:

17 201116848 6 -174.229 0.707 1.70 55.5 7 3.677 1.74 8 8.978 1.315 1.52 56.3 9 4.13 0.674 10 20.698 1.351 1.61 26.6 11 -15.000 variable 12 Infinity 0.345 13 6.742 0.807 1.52 56.3 14 16.726 variable 15 10.437 1.043 1.92 18.9 16 5.594 0.071 17 4.739 2.15 1.52 56.3 18 -23.915 0.354 19 8.553 1.558 1.52 56.3 20 12.761 variable 變數D5、D11、D14與D20相對於不同變焦位置的關17 201116848 6 -174.229 0.707 1.70 55.5 7 3.677 1.74 8 8.978 1.315 1.52 56.3 9 4.13 0.674 10 20.698 1.351 1.61 26.6 11 -15.000 variable 12 Infinity 0.345 13 6.742 0.807 1.52 56.3 14 16.726 variable 15 10.437 1.043 1.92 18.9 16 5.594 0.071 17 4.739 2.15 1.52 56.3 18 -23.915 0.354 19 8.553 1.558 1.52 56.3 20 12.761 variable Variable D5, D11, D14 and D20 relative to different zoom positions

係分別如下:The systems are as follows:

Wide Normal Tele f 4.68 10.63 22.47 Fno 2.87 3.13 3.3 2ω 61 29 14 D5 1.209 7.39 11.772 D11 11.348 5.161 0.779 D14 3.878 2.215 1.404 D20 8.108 9.772 10.583Wide Normal Tele f 4.68 10.63 22.47 Fno 2.87 3.13 3.3 2ω 61 29 14 D5 1.209 7.39 11.772 D11 11.348 5.161 0.779 D14 3.878 2.215 1.404 D20 8.108 9.772 10.583

再者,該等透鏡中,光學表面編號S8至Sll、S13、 S14及S17至S20為非球面,其非球面係數資料分別如下 所示: 表面 K_A4_Αβ_As_Ai〇 A” S8 0 S9 0 S10 0 S11 0 S13 0 S14 0 S17 0 S18 0 S19 0 -3.81 Ε-03 -6.85Ε-04 1.53Ε-04 -7.77Ε-04 1.39Ε-03 2.05Ε-03 -1.63Ε-03 -8.22Ε-05 5.17Ε-03 2.31 Ε-06 -3.90Ε-04 -3.97Ε-04 -1.06Ε-04 -1.27Ε-06 8.33Ε-05 -1.39Ε-04 -1.00Ε-04 -3.97Ε-05 2.64Ε-05 6.89Ε-05 2.61 Ε-05 5.46Ε-06 2.08Ε-05 3.41 Ε-05 -5.55Ε-06 1.29Ε-06 1.67Ε-06 -2.16Ε-07 -4.66Ε-06 -4.90Ε-07 -3.42Ε-07 -3.36Ε-06 -5.22Ε-06 4.60Ε-07 1.57Ε-06 -5.78Ε-07 6.89Ε-09 7.74Ε-08 -2.36Ε-10 1.16Ε-09 3.87Ε-07 5.13Ε-07 -6.76Ε-08 -6.44Ε-08 1.18Ε-07 18 201116848 ~S20 0 6.29E-03 -1.24E-04 3.22E-05 -5.82E-06 5.78E-07 請參閱第五A圖至第五C圖所示.,其分別顯示本發明 第五實施例之變焦鏡頭的各透鏡群組在廣角端(第五A 圖)、標準位置(第五B圖)及望遠端(第五C圖)三種 型態下之透鏡配置示意圖。因此,第五實施例與第一實施 例相同,都是由10片透鏡所組成。第五D圖表示第五實 施例處於廣角型態時之像曲線圖;第五E圖表示第五實施 .例處於標準位置型態時之像曲線圖;第五F圖表示第五實 施例處於望遠型態時之像曲線圖。Furthermore, in these lenses, the optical surface numbers S8 to S11, S13, S14 and S17 to S20 are aspherical surfaces, and the aspherical coefficient data are as follows: Surface K_A4_Αβ_As_Ai〇A" S8 0 S9 0 S10 0 S11 0 S13 0 S14 0 S17 0 S18 0 S19 0 -3.81 Ε-03 -6.85Ε-04 1.53Ε-04 -7.77Ε-04 1.39Ε-03 2.05Ε-03 -1.63Ε-03 -8.22Ε-05 5.17Ε-03 2.31 Ε-06 -3.90Ε-04 -3.97Ε-04 -1.06Ε-04 -1.27Ε-06 8.33Ε-05 -1.39Ε-04 -1.00Ε-04 -3.97Ε-05 2.64Ε-05 6.89Ε- 05 2.61 Ε-05 5.46Ε-06 2.08Ε-05 3.41 Ε-05 -5.55Ε-06 1.29Ε-06 1.67Ε-06 -2.16Ε-07 -4.66Ε-06 -4.90Ε-07 -3.42Ε-07 -3.36Ε-06 -5.22Ε-06 4.60Ε-07 1.57Ε-06 -5.78Ε-07 6.89Ε-09 7.74Ε-08 -2.36Ε-10 1.16Ε-09 3.87Ε-07 5.13Ε-07 -6.76 Ε-08 -6.44Ε-08 1.18Ε-07 18 201116848 ~S20 0 6.29E-03 -1.24E-04 3.22E-05 -5.82E-06 5.78E-07 Please refer to pictures 5A to C As shown in the figure, the lens groups of the zoom lens according to the fifth embodiment of the present invention are respectively displayed at the wide angle end (fifth A picture), the standard position (fifth B picture), and the telephoto end (fifth C picture). Transmitting The mirror configuration is therefore the same as the first embodiment, and is composed of 10 lenses. The fifth D diagram shows the image of the fifth embodiment in the wide-angle mode; the fifth E shows the image. The fifth embodiment is an image graph when the standard position type is used; and the fifth F diagram is a graph showing the image of the fifth embodiment in the telephoto mode.

實施例五的數據請參考下表所示: 表面 編號 R (曲率半徑) D (厚度) nd Vd (折射率)(阿貝數) 1 24.831 1.067 1.85 23.8 2 15.853 2.389 1.62 63.3 3 94.759 0.07 4 15.448 1.943 1.64 60.1 5 Infinity variable 6 -174.229 0.707 1.70 55.5 7 3.677 1.74 8 8.978 1.315 1.52 56.3 9 4.13 0.674 10 20.698 1.351 1.61 26.6 11 -15.000 variable 12 Infinity 0.345 13 6.742 0.807 1.52 56.3 14 16.726 variable 15 10.437 1.043 1.92 18.9 16 5.594 0.071 17 4.739 2.15 1.52 56.3 18 -23.915 0.354 19 8.553 1.558 1.52 56.3 20 12.761 variable 變數D5、Dll、D14與D20相對於不同變焦位置的關 係分別如下: 19 201116848For the data of Example 5, please refer to the following table: Surface No. R (radius of curvature) D (thickness) nd Vd (refractive index) (Abbe number) 1 24.831 1.067 1.85 23.8 2 15.853 2.389 1.62 63.3 3 94.759 0.07 4 15.448 1.943 1.64 60.1 5 Infinity variable 6 -174.229 0.707 1.70 55.5 7 3.677 1.74 8 8.978 1.315 1.52 56.3 9 4.13 0.674 10 20.698 1.351 1.61 26.6 11 -15.000 variable 12 Infinity 0.345 13 6.742 0.807 1.52 56.3 14 16.726 variable 15 10.437 1.043 1.92 18.9 16 5.594 0.071 17 4.739 2.15 1.52 56.3 18 -23.915 0.354 19 8.553 1.558 1.52 56.3 20 12.761 variable The relationship of variables D5, Dll, D14 and D20 with respect to different zoom positions are as follows: 19 201116848

Wide Normal Tele f 4.68 10.63 22.47 Fno 2.45 2.67 2.81 2ω 61 29 14 D5 1.209 7.39 11.772 D11 11.348 5.161 0.779 D14 3.878 2.215 1.404 D20 8.108 9.772 10.583 再者,該等透鏡中,光學表面編號S8至Sll、S13、 S14及S17至S20為非球面,其非球面係數資料分別如下 所示: 表面 K a4 Αβ 八8 A10 A12 S8 0 -3.81 E-03 2.31 E-06 2.64E-05 -2.16E-07 6.89E-09 S9 0 -6.85E-04 -3.90E-04 6.89E-05 -4.66E-06 7.74E-08 S10 0 1.53E-04 -3.97E-04 2.61 E-05 -4.90E-07 -2.36E-10 S11 0 -7.77E-04 -1.06E-04 5.46E-06 -3.42E-07 1.16E-09 S13 0 1.39E-03 -1.27E-06 2.08E-05 -3.36E-06 3.87E-07 S14 0 2.05E-03 8.33E-05 3.41 E-05 -5.22E-06 5.13E-07 S17 0 -1.63E-03 -1.39E-04 -5.55E-06 4.60E-07 -6.76E-08 S18 0 -8.22E-05 -1.00E-04 1.29E-06 1.57E-06 -6.44E-08 S19 0 5.17E-03 -3.97E-05 1.67E-06 -5.78E-07 1.18E-07 S20 0 6.29E-03 -1.24E-04 3.22E-05 -5.82E-06 5.78E-07Wide Normal Tele f 4.68 10.63 22.47 Fno 2.45 2.67 2.81 2ω 61 29 14 D5 1.209 7.39 11.772 D11 11.348 5.161 0.779 D14 3.878 2.215 1.404 D20 8.108 9.772 10.583 Furthermore, in these lenses, optical surface numbers S8 to S11, S13, S14 and S17 to S20 are aspherical, and their aspherical coefficient data are as follows: Surface K a4 Αβ 8 8 A10 A12 S8 0 -3.81 E-03 2.31 E-06 2.64E-05 -2.16E-07 6.89E-09 S9 0 -6.85E-04 -3.90E-04 6.89E-05 -4.66E-06 7.74E-08 S10 0 1.53E-04 -3.97E-04 2.61 E-05 -4.90E-07 -2.36E-10 S11 0 -7.77E-04 -1.06E-04 5.46E-06 -3.42E-07 1.16E-09 S13 0 1.39E-03 -1.27E-06 2.08E-05 -3.36E-06 3.87E-07 S14 0 2.05E-03 8.33E-05 3.41 E-05 -5.22E-06 5.13E-07 S17 0 -1.63E-03 -1.39E-04 -5.55E-06 4.60E-07 -6.76E-08 S18 0 - 8.22E-05 -1.00E-04 1.29E-06 1.57E-06 -6.44E-08 S19 0 5.17E-03 -3.97E-05 1.67E-06 -5.78E-07 1.18E-07 S20 0 6.29E -03 -1.24E-04 3.22E-05 -5.82E-06 5.78E-07

在第五實施例中,本發明之變焦鏡頭之光闌係可隨著 不同的影像擷取應用時改變其FNO。例如:當拍攝動態影 像而需要較大的進光量時,可選用較小的fno ;當拍攝靜 ® 態影像而需要較高的解析度時,可選用較大的fno 藉此,將上述本發明第一個至第四個實施例作一整 理,如下表所示: 第一實施例第二實施例第三實施例第四實施例In the fifth embodiment, the aperture of the zoom lens of the present invention can change its FNO as it is applied by different images. For example, when shooting a motion picture requires a large amount of light, a smaller fno can be used; when a static image is required and a higher resolution is required, a larger fno can be used to thereby adopt the above invention. The first to fourth embodiments are organized as shown in the following table: First Embodiment Second Embodiment Third Embodiment Fourth Embodiment

Fw 6.6 6.6 6.6 4.68 Fm 15 15 15 10.63 Ft 31.8 31.8 31.8 、 22.47 F1 35.54 36.98 35.92 25.14 F2 -8.06 -7.92 -8.01 -5.70 F3 29.48 27.86 28.73 20.85 20 201116848Fw 6.6 6.6 6.6 4.68 Fm 15 15 15 10.63 Ft 31.8 31.8 31.8 , 22.47 F1 35.54 36.98 35.92 25.14 F2 -8.06 -7.92 -8.01 -5.70 F3 29.48 27.86 28.73 20.85 20 201116848

F4 F1/F3 F1/F2 F4/Fw f4/Fm F4/Ft F,w)( FT)]1/2 fM 17.76 1.21 -4.41 2.69 1.18 0.56 1.23 1.98 3.11 17.51 17.9 12.58 1.33 1.25 1.21 -4.67 -4.48 -4.41 2.65 2.71 2.69 1.17 1.19 1.18 0.55 0.56 0.56 1.21 1.24 1.23 2.04 2.19 1.98 3.12 3.12 3.11 其中,F1為該第—透鏡群組的焦距,F2為該第二遂 兄:、”且的焦距’ F3為該第三透鏡群組的焦距,Μ為該第F4 F1/F3 F1/F2 F4/Fw f4/Fm F4/Ft F,w)( FT)]1/2 fM 17.76 1.21 -4.41 2.69 1.18 0.56 1.23 1.98 3.11 17.51 17.9 12.58 1.33 1.25 1.21 -4.67 -4.48 -4.41 2.65 2.71 2.69 1.17 1.19 1.18 0.55 0.56 0.56 1.21 1.24 1.23 2.04 2.19 1.98 3.12 3.12 3.11 where F1 is the focal length of the lens group, F2 is the second brother: "and the focal length" F3 is the third The focal length of the lens group, which is the first

四^鏡群組的焦距,Fw為廣·態時之集距,Fm為#举 j狀態時之焦距,Ft為望遠狀態時之焦距,爪為該第 =鏡群組之第-透鏡及第二透鏡所合成的焦距,凡_ 、,透鏡群組之第三透鏡所合成的焦距,y?4為該第智t鏡 群、、且之第四透鏡所合成的焦距,並且為二群 組1五魏料六魏所錢雜距。 透 、、’’T、上所述,本發明所能產生之特點及功能經里如 后: rt-/4 1、 本發明具有較小的進光量變化(廣角端盘望遠端 的進光量比約為(3.39/2·84)2=1 42倍)及射的變焦比(5 倍的變焦比),並且同時具有緊敏體積之優勢,以減少影 像擷取裝置的整體體積。 2、 本發明之變焦鏡頭之光闌係可隨著不同的影像糊 取應用%改變其FNQ。例如:當拍攝動態影像而需要較大 的進光塁日夺可遥用車父小的FNO,當拍攝靜態影像而需要 較高的解析度時,可選用較大的FN〇。 、3、本發明至少具有4枚由塑膠材質所製成的透鏡, 以達到減輕鏡頭重量及方便驅動鏡組的目的。 2l 201116848 惟’本發明之所有範圍應以下述之 1例凡=發明申請專利範圍之精神與其類似= =恭 本發明之範射,任何熟悉該項技蔽者 在本發明之領域内,可輕及之變化 以下本案之專·JS。 必盘在 【圖式簡單說明】 第A圖至第一 c圖分別顯示本發明第一實施例之變焦、 鏡頭的各透鏡群組在廣角、標準位置及望遠三種型、 態下之透鏡配置示意圖。The focal length of the four mirror group, Fw is the set distance of the wide state, Fm is the focal length of the #j state, Ft is the focal length of the telephoto state, and the claw is the first lens of the first mirror group and the first The focal length synthesized by the two lenses, the focal length synthesized by the third lens of the lens group, y?4 is the focal length synthesized by the fourth lens group and the fourth lens, and is a group of two 1 Wu Wei material six Wei Wei money. According to the above, the characteristics and functions that can be produced by the present invention are as follows: rt-/4 1. The invention has a small change in the amount of light incident (the amount of light entering the far end of the wide-angle end disk is about It is (3.39/2·84)2=1 42 times) and the zoom ratio (5x zoom ratio), and at the same time has the advantage of compact volume to reduce the overall volume of the image capture device. 2. The aperture of the zoom lens of the present invention can change its FNQ with different image pasting applications. For example, when shooting a motion picture and requiring a large amount of incoming light, the FNO can be used by a small car. When shooting a still image and requires a high resolution, a larger FN can be used. 3. The invention has at least four lenses made of plastic material for the purpose of reducing the weight of the lens and facilitating the driving of the lens group. 2l 201116848 </ RTI> </ RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; And the following changes in the case of the special JS. BRIEF DESCRIPTION OF THE DRAWINGS [After a brief description of the drawings] FIGS. A to C show the lens configurations of the lens groups of the zoom and lens according to the first embodiment of the present invention in three types of wide angle, standard position and telephoto. .

第D圖至第一 F圖分別表示第一實施例處於廣角型態 一時、標準位置型態時及望遠型態時之像曲線圖。〜 第一A圖至第二c圖分別顯示本發明第二實施例之變焦 鏡頭的各透鏡群組在廣角、標準位置及望遠三種型 態下之透鏡配置示意圖。 第—D圖至第二F圖分別表示第二實施例處於廣角型態 時、標準位置型態時及望遠型態時之像曲線圖。 第三A圖至第三c圖分別顯示本發明第三實施例之變焦The graphs D to F represent the graphs of the first embodiment in the wide-angle mode, the standard position type, and the telephoto type, respectively. The first to second figures C show the lens configurations of the lens groups of the zoom lens according to the second embodiment of the present invention in three types of wide angle, standard position and telephoto. The first to fourth figures F show the image diagrams of the second embodiment in the wide-angle mode, the standard position mode, and the telephoto mode, respectively. The third to third c-pictures respectively show the zoom of the third embodiment of the present invention

鏡頭的各透鏡群組在廣角、標準位置及望遠三種型 態下之透鏡配置示意圖。 第二D圖至第三F圖分別表示第三實施例處於廣角型態 時、標準位置型態時及望遠型態時之像曲線圖。 第四A圖至苐四c圖分別顯示本發明第四實施例之變焦 鏡頭的各透鐃群組在廣角、標準位置及望遠三種型 態下之透鏡配置示意圖。 第四D圖至第四f圖分別表示第四實施例處於廣角.型態 時、標準位置型態時及望遠型態時之像曲線圖。 22 201116848 第五A圖至第五C圖分別顯示本發明第五實施例之變焦 鏡頭的各透鏡群組在廣角、標準位置及望遠三種型 態下之透鏡配置示意圖。 第五D圖至第五F圖分別表示第五實施例處於廣角型態 時、標準位置型態時及望遠型態時之像曲線圖。 【主要元件符號說明】 第一透鏡群組 G1 第二透鏡群組 G2 第三透鏡群組 G3 * f四透鏡群、组G4The lens configuration diagram of each lens group of the lens in three types of wide angle, standard position and telephoto. The second to third F-graphs respectively show image diagrams of the third embodiment in the wide-angle mode, the standard position type, and the telephoto mode. 4A to 4C are diagrams showing lens configurations of the respective types of the zoom lens of the zoom lens according to the fourth embodiment of the present invention in a wide angle, a standard position, and a telephoto position. The fourth to fourth f diagrams respectively show image diagrams of the fourth embodiment in the wide-angle mode, the standard position mode, and the telephoto mode. 22 201116848 FIGS. 5A to 5C are views showing lens configurations of the lens groups of the zoom lens according to the fifth embodiment of the present invention in three types of wide angle, standard position, and telephoto. Figs. 5D to 5F respectively show image diagrams of the fifth embodiment in the wide-angle mode, the standard position type, and the telephoto mode. [Main component symbol description] First lens group G1 Second lens group G2 Third lens group G3 * f Four lens group, group G4

第一透鏡 L1 第二透鏡 L2 第三透鏡 L3 第四透鏡 L4 第五透鏡 L5 第六透鏡 L6 第七透鏡 L7 第八透鏡 L8 第九透鏡 L9 第十透鏡 L10 光學表面 S1 至 S20 軸向距離 D1 至 D20 光闌 A 影像記錄裔 I 光軸 Z 23First lens L1 second lens L2 third lens L3 fourth lens L4 fifth lens L5 sixth lens L6 seventh lens L7 eighth lens L8 ninth lens L9 tenth lens L10 optical surface S1 to S20 axial distance D1 to D20 aperture A image recording I I optical axis Z 23

Claims (1)

201116848 七、申請專利範圍: 1、 一種變焦鏡頭,其包括: 一具有正屈光能力之第一透鏡群組,其固定於一預定 位置上; 一具有負屈光能力之第二透鏡群組,其隨著該變焦鏡 頭之放大倍率的變動而沿著該變焦鏡頭之光軸移 動; 一具有正屈光能力之第三透鏡群組,其具有至少一透 鏡,並且該透鏡係固定於一預定位置上;以及 一具有正屈光能力之第四透鏡群組,其沿著該變焦鏡 ® 頭之光軸移動,以保持該變焦鏡頭所產生的成像面 準確投射在一影像記錄器上; 其中,該第一透鏡群組、該第二透鏡群組、該第三透 鏡群組及該第四透鏡群組係沿著該光軸並從該變焦 鏡頭的物體側至成像侧依序排列,並且該第一透鏡 群組、該第二透鏡群組、該第三透鏡群組及該第四 透鏡群組的焦距係符合下列三組條件: 條件⑴:4.4&lt;H&lt;4.7 ; · 條件(2) : 1.2&lt;凡/尸3&lt;1.4 ;以及 條件(3) : l.l&lt;F4/(iyg1/2&lt;1.4 ; 其中,F1為該苐一透鏡群組的焦距,F2為該第二透 鏡群組的焦距,F3為該第三透鏡群組的焦距,F4為 該弟四透鏡群組的焦距,F w為廣角狀態時之焦距, 並且FT為望遠狀態時之焦距。 2、 如申請專利範圍第1項所述之變焦鏡頭,更進一步包 括:一直徑大小可進行調整之光闌,並且該光闌係沿 24 201116848 著該光軸且設置於該第二透鏡群組及第三透鏡群組之 間。 3、一種變焦鏡頭,其包括: 一具有正屈光能力之第一透鏡群組,其固定於一預定 位置上; 一具有負屈光能力之第二透鏡群組,其隨著該變焦鏡 頭之放大倍率的變動而沿著該變焦鏡頭之光軸移 動; 一具有正屈光能力之第三透鏡群組,其具有至少一透 ® 鏡,並且該透鏡係固定於一預定位置上;以及 一具有正屈光能力之第四透鏡群組,其沿著該變焦鏡 頭之光軸移動,以保持該變焦鏡頭所產生的成像面 準確投射在一影像記錄器上; 其中,該第一透鏡群組、該第二透鏡群組、該第三透 鏡群組及該第四透鏡群組係沿著該光軸並從該變焦 鏡頭的物體側至成像側依序排列,並且該第一透鏡 群組係由一第一透鏡、一第二透鏡及一第三透鏡依 ® 序排列所組成,該第二透鏡群組係由一第四透鏡、 一第五遗鏡及一第六透鏡依序排列所組成,並且該 第一透鏡群組及該第二透鏡群組係符合下列兩組條 件: 條件(1): i.9&lt;yz12/yz3&lt;2.2;以及 條件(2): , 其中,几2為該第一透鏡群組之第一透鏡及第二透鏡 所合成的焦距,/?3為該第一透鏡群組之第三透鏡所 合成的焦距,y?4為該第二透鏡群組之第四透鏡所合! 25 201116848 成的焦距,並且//56為該第二透鏡群組之第五透鏡及 第六透鏡所合成的焦距。 4、 如ΐ請專利範圍第3項所述之變焦鏡頭,更進一步包 ^ · 一直徑大小可進行調整之光閣,並且該光鬧係沿 著該光軸且設置於該第二透鏡群组及第 三透鏡群組之 間。 5、 —種變焦鏡頭,其包括: 具有正屈光忐力之第一透鏡群組,其固定於一預定 位置上; 具有負屈光忐力之第二透鏡群組,其隨著該變焦鏡 _ 頭之放大倍率的變動而沿著該變焦鏡頭之光軸移 動; -具有正屈総力之第三透鏡群組,其具有至少一透 鏡,並且該透鏡係固定於一預定位置上;以及 一具有正屈光能力之第四透鏡獅,其沿著該變焦鏡 頭之光軸移動,以保持該變焦鏡頭所產生的成像面 準確投射在一影像記錄器上; 其中,該第一透鏡群組、該第二透鏡群組、該第三透魯 鏡群組及該第四透鏡群組係沿著該光軸並從該變焦、 鏡頭的物體側至成像側依序排列,並且該第四透鏡 群組的焦距係符合下列兩組條件: 條件(1): 2.2&lt;F4/i^&lt;2.7 ;以及 條件(2) : 0,5&lt;6/巧 &lt;〇.7 ; 其中’F4為该第四透鏡群組的焦距,Fw為廣角狀態 打之焦距,並且FT為望遠狀態時之焦距。 如申明專利1(1圍第5項所述之變焦鏡頭,更進一步包 26 201116848 括:一直徑大小可進行調整之光闌,並且該光闌係沿 著該光軸且設置於該第二透鏡群組及第三透鏡群組之 間。 7、一種變焦鏡頭,其應用於一影像擷取裝置,其中該變 焦鏡頭係包括: 一具有正屈光能力之第一透鏡群組,其固定於一預定 位置上; 一具有負屈光能力之第二透鏡群組,其隨著該變焦鏡 頭之放大倍率的變動而沿著該變焦鏡頭之光軸移 •動; 一具有正屈光能力之第三透鏡群組,其具有至少一透 鏡,並且該透鏡係固定於一預定位置上; 一具有正屈光能力之第四透鏡群組,其沿著該變焦鏡 頭之光軸移動,以保持該變焦鏡頭所產生的成像面 準確投射在一影像記錄器上;以及 一直徑大小可進行調整之光闌,並且該光闌係沿著該 光軸且設置於該第二透鏡群組及第三透鏡群組之201116848 VII. Patent application scope: 1. A zoom lens comprising: a first lens group having positive refractive power fixed at a predetermined position; and a second lens group having negative refractive power, Moving along the optical axis of the zoom lens as the magnification of the zoom lens changes; a third lens group having positive refractive power having at least one lens, and the lens is fixed at a predetermined position And a fourth lens group having positive refractive power, which moves along the optical axis of the zoom lens® head to keep the imaging surface generated by the zoom lens accurately projected on an image recorder; The first lens group, the second lens group, the third lens group, and the fourth lens group are sequentially arranged along the optical axis and from the object side to the imaging side of the zoom lens, and the The focal lengths of the first lens group, the second lens group, the third lens group, and the fourth lens group satisfy the following three sets of conditions: Condition (1): 4.4 &lt; H &lt;4.7; · Condition (2) : 1.2&lt; / corpse 3 &lt;1.4; and condition (3): l.l &lt; F4 / (iyg1/2 &lt;1.4; where F1 is the focal length of the first lens group, F2 is the focal length of the second lens group, F3 For the focal length of the third lens group, F4 is the focal length of the four-lens group, Fw is the focal length in the wide-angle state, and FT is the focal length in the telephoto state. 2. As described in claim 1 The zoom lens further includes: a diaphragm whose diameter is adjustable, and the optical axis is along the optical axis of 24 201116848 and disposed between the second lens group and the third lens group. A zoom lens comprising: a first lens group having positive refractive power fixed to a predetermined position; a second lens group having negative refractive power, with magnification of the zoom lens a change along the optical axis of the zoom lens; a third lens group having a positive refractive power having at least one through mirror, and the lens is fixed at a predetermined position; and a positive bend a fourth lens group of light capabilities along which the change The optical axis of the focal lens moves to keep the imaging surface generated by the zoom lens accurately projected on an image recorder; wherein the first lens group, the second lens group, the third lens group, and the The fourth lens group is arranged along the optical axis and sequentially from the object side to the imaging side of the zoom lens, and the first lens group is composed of a first lens, a second lens and a third lens. The second lens group is composed of a fourth lens, a fifth lens and a sixth lens, and the first lens group and the second lens group are arranged. The following two sets of conditions are met: Condition (1): i.9 &lt;yz12/yz3&lt;2.2; and condition (2): , wherein, 2 is a combination of the first lens and the second lens of the first lens group The focal length, /?3 is the focal length of the third lens of the first lens group, y?4 is the fourth lens of the second lens group! 25 201116848 into a focal length, and / / 56 is the The focal length synthesized by the fifth lens and the sixth lens of the second lens group. 4. The zoom lens according to claim 3, further comprising: a light illuminating panel, wherein the optical system is disposed along the optical axis and disposed in the second lens group And between the third lens groups. 5. A zoom lens comprising: a first lens group having positive refractive power fixed to a predetermined position; a second lens group having negative refractive power, along with the zoom lens _ the movement of the magnification of the head moves along the optical axis of the zoom lens; - a third lens group having a positive yield, having at least one lens, and the lens is fixed at a predetermined position; and a fourth lens lion of positive refractive power, which moves along the optical axis of the zoom lens to keep the imaging surface generated by the zoom lens accurately projected on an image recorder; wherein the first lens group, the first lens group The second lens group, the third lens group, and the fourth lens group are arranged along the optical axis and sequentially from the zoom, the object side of the lens to the imaging side, and the fourth lens group The focal length is in accordance with the following two conditions: Condition (1): 2.2 &lt; F4 / i ^ &lt;2.7; and condition (2) : 0, 5 &lt; 6 / Q &lt;〇.7; where 'F4 is the first The focal length of the four lens group, Fw is the focal length of the wide angle state, and the FT is the telephoto Focal length of the state. For example, in the zoom lens of claim 1 (1), the further package 26 201116848 includes: an aperture that can be adjusted in diameter, and the aperture is disposed along the optical axis and disposed on the second lens Between the group and the third lens group. 7. A zoom lens applied to an image capturing device, wherein the zoom lens comprises: a first lens group having positive refractive power, which is fixed to one a predetermined position; a second lens group having a negative refractive power, which moves along the optical axis of the zoom lens as the magnification of the zoom lens changes; a third having a positive refractive power a lens group having at least one lens, and the lens is fixed at a predetermined position; a fourth lens group having positive refractive power, moving along an optical axis of the zoom lens to maintain the zoom lens The generated imaging surface is accurately projected onto an image recorder; and a pupil having a diameter adjustable, and the aperture is disposed along the optical axis and disposed in the second lens group and the third lens group It 其中,該第一透鏡群組、該第二透鏡群組、該第三透 鏡群組及該第四透鏡群組係沿著該光軸並從該變焦 鏡頭的物體側至成像側依序排列,並且由該第一透 鏡群組、該第二透鏡群組、該第三透鏡群組及該第 四透鏡群組所組成之變焦鏡頭係組裝於該影像擷取 裝置内。 8、如申請專利範圍第7項所述之變焦鏡頭,其中該第&gt; 透鏡群組、該第二透鏡群組、該第三透鏡群組及該第r 27 201116848 四透鏡群組的焦距係符合下列三組條件: 條件(1) : 4.4&lt;厂1/|/7|&lt;4.7 ; 條件(2) : 1.2&lt;in/F3&lt;1.4 ;以及 條件(3) : 1.1&lt;β4/(/;Λ)Ι/2&lt;1.4 ; 其中,F1為該第一透鏡群組的焦距,F2為該第二透鏡 群組的焦距,F3為該第三透鏡群組的焦距,F4為該第 四透鏡群組的焦距,Fw為廣角狀態時之焦距,並且FT 為望遠狀態時之焦距。 9、如申請專利範圍第7項所述之變焦鏡頭,其中該第一 透鏡群組係由一第一透鏡、一第二透鏡及一第三透鏡 依序排列所組成,該第二透鏡群組係由一第四透鏡、 一第五透鏡及一第六透鏡依序排列所組成,並且該第 一透鏡群組及該第二透鏡群組係符合下列兩組條件: 條件(1): 1.9&lt;夕12/凡&lt;2.2;以及 條件(2) : 3&lt;Λ6/Λ&lt;4 ; 其中,/712為該第一透鏡群組之第一透鏡及第二透鏡所 合成的焦距,凡為該第一透鏡群組之第三透鏡所合成 的焦距,//4為該第二透鏡群組之第四透鏡所合成的焦 距,並且/?56為該第二透鏡群組之第五透鏡及第六透鏡 所合成的焦距。 1 0、如申請專利範圍第7項所述之變焦鏡頭,其中該第 四透鏡群組的焦距係符合下列兩組條件: 條件(1) : 2.2&lt;巧/&amp; &lt;2.7 ;以及 條件(2) : 0.5&lt;F4/巧 &lt;0.7 ; 其中,F4為該第四透鏡群組的焦距,Fw為廣角狀態時 之焦距,並且FT為望遠狀態時之焦距。 28The first lens group, the second lens group, the third lens group, and the fourth lens group are sequentially arranged along the optical axis and from the object side to the imaging side of the zoom lens. And the zoom lens composed of the first lens group, the second lens group, the third lens group and the fourth lens group is assembled in the image capturing device. 8. The zoom lens of claim 7, wherein the &gt; lens group, the second lens group, the third lens group, and the focal length of the r 27 201116848 four lens group The following three sets of conditions are met: Condition (1): 4.4 &lt;Factory 1/|/7|&lt;4.7; Condition (2): 1.2&lt;in/F3&lt;1.4; and Condition (3): 1.1&lt;β4/ (/;Λ)Ι/2&lt;1.4; where F1 is the focal length of the first lens group, F2 is the focal length of the second lens group, F3 is the focal length of the third lens group, and F4 is the first The focal length of the four lens group, Fw is the focal length in the wide angle state, and FT is the focal length in the telephoto state. 9. The zoom lens of claim 7, wherein the first lens group is composed of a first lens, a second lens and a third lens arranged in sequence, the second lens group The fourth lens, the fifth lens and the sixth lens are sequentially arranged, and the first lens group and the second lens group meet the following two conditions: Condition (1): 1.9&lt;夕12/凡&lt;2.2; and condition (2): 3&lt;Λ6/Λ&lt;4; wherein /712 is the focal length synthesized by the first lens and the second lens of the first lens group, where a focal length synthesized by a third lens of the first lens group, //4 is a focal length synthesized by a fourth lens of the second lens group, and /? 56 is a fifth lens and a second lens of the second lens group The focal length synthesized by the six lenses. The zoom lens of claim 7, wherein the focal length of the fourth lens group meets the following two conditions: Condition (1): 2.2 &lt; Qiao / &amp;&lt;2.7; and conditions (2): 0.5 &lt; F4 / Q &lt;0.7; where F4 is the focal length of the fourth lens group, Fw is the focal length in the wide-angle state, and FT is the focal length in the telephoto state. 28
TW98138513A 2009-11-12 2009-11-12 Zoom lens TW201116848A (en)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI454741B (en) * 2011-05-23 2014-10-01 Qisda Corp Projection apparatus
TWI476440B (en) * 2012-01-06 2015-03-11 Optronics Technology Inc A Telephoto zoom lens
TWI491919B (en) * 2012-12-05 2015-07-11 Sintai Optical Shenzhen Co Ltd Zoom lens
TWI595263B (en) * 2015-06-26 2017-08-11 信泰光學(深圳)有限公司 Zoom lens
TWI780750B (en) * 2021-06-08 2022-10-11 大陸商信泰光學(深圳)有限公司 Lens assembly
US12124016B2 (en) 2021-04-01 2024-10-22 Sintai Optical (Shenzhen) Co., Ltd. Lens assembly
TWI882446B (en) * 2023-07-14 2025-05-01 大立光電股份有限公司 Camera module and electronic device

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI454741B (en) * 2011-05-23 2014-10-01 Qisda Corp Projection apparatus
TWI476440B (en) * 2012-01-06 2015-03-11 Optronics Technology Inc A Telephoto zoom lens
TWI491919B (en) * 2012-12-05 2015-07-11 Sintai Optical Shenzhen Co Ltd Zoom lens
TWI595263B (en) * 2015-06-26 2017-08-11 信泰光學(深圳)有限公司 Zoom lens
US12124016B2 (en) 2021-04-01 2024-10-22 Sintai Optical (Shenzhen) Co., Ltd. Lens assembly
TWI780750B (en) * 2021-06-08 2022-10-11 大陸商信泰光學(深圳)有限公司 Lens assembly
TWI882446B (en) * 2023-07-14 2025-05-01 大立光電股份有限公司 Camera module and electronic device

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