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    • 3. 发明授权
    • Zoom lens and imaging apparatus
    • 变焦镜头和成像设备
    • US08649107B2
    • 2014-02-11
    • US13371495
    • 2012-02-13
    • Masaharu HosoiMotoyuki OtakeNaoki Miyagawa
    • Masaharu HosoiMotoyuki OtakeNaoki Miyagawa
    • G02B15/14
    • G02B15/177G03B17/14
    • A zoom lens includes: a first lens group having negative refractive power; a diaphragm; a second lens group having positive refractive power; a third lens group having negative refractive power; and a fourth lens group having positive refractive power, arranged in order from an object side. The first lens group is configured by at least one negative lens and one positive lens. The third lens group is configured by one negative lens. Then power is changed from a wide angle end state to a telephoto end state, the first, second, and third lens groups are moved in the direction of an optical axis, and the fourth lens group is fixed. When focusing, the third lens group is moved in the direction of the optical axis so as to satisfy the following Conditional Equations, −2.8
    • 变焦透镜包括:具有负屈光力的第一透镜组; 隔膜 具有正屈光力的第二透镜组; 具有负屈光力的第三透镜组; 以及具有正折射力的第四透镜组,从物体侧依次布置。 第一透镜组由至少一个负透镜和一个正透镜构成。 第三透镜组由一个负透镜构成。 然后,功率从广角端状态变为长焦端状态,第一透镜组和第三透镜组沿光轴方向移动,第四透镜组被固定。 当聚焦时,第三透镜​​组沿光轴方向移动,以满足以下条件方程:-2.8
    • 5. 发明申请
    • ZOOM LENS AND IMAGING APPARATUS
    • 变焦镜头和成像装置
    • US20120212833A1
    • 2012-08-23
    • US13371495
    • 2012-02-13
    • Masaharu HosoiMotoyuki OtakeNaoki Miyagawa
    • Masaharu HosoiMotoyuki OtakeNaoki Miyagawa
    • G02B15/177
    • G02B15/177G03B17/14
    • A zoom lens includes: a first lens group having negative refractive power; a diaphragm; a second lens group having positive refractive power; a third lens group having negative refractive power; and a fourth lens group having positive refractive power, arranged in order from an object side. The first lens group is configured by at least one negative lens and one positive lens. The third lens group is configured by one negative lens. Then power is changed from a wide angle end state to a telephoto end state, the first, second, and third lens groups are moved in the direction of an optical axis, and the fourth lens group is fixed. When focusing, the third lens group is moved in the direction of the optical axis so as to satisfy the following Conditional Equations, −2.8
    • 变焦透镜包括:具有负屈光力的第一透镜组; 隔膜 具有正屈光力的第二透镜组; 具有负屈光力的第三透镜组; 以及具有正折射力的第四透镜组,从物体侧依次布置。 第一透镜组由至少一个负透镜和一个正透镜构成。 第三透镜组由一个负透镜构成。 然后,功率从广角端状态变为长焦端状态,第一透镜组和第三透镜组沿光轴方向移动,第四透镜组被固定。 当聚焦时,第三透镜​​组沿光轴方向移动,以满足以下条件方程:-2.8
    • 6. 发明授权
    • Zoom lens and imaging apparatus
    • 变焦镜头和成像设备
    • US08520318B2
    • 2013-08-27
    • US13064701
    • 2011-04-11
    • Masaharu HosoiHiroyuki MatsumotoMasafumi Sueyoshi
    • Masaharu HosoiHiroyuki MatsumotoMasafumi Sueyoshi
    • G02B15/14
    • G02B15/173G02B13/06
    • A zoom lens including first, second, and third lens groups having positive, negative, and positive refractive powers, respectively, which are arranged in that order from the object side to the image side such that, when zooming from wide-angle to telephoto, the first lens group moves to the object side, and spacings between the lens groups change. The third lens group has at least two lenses including a first lens, which is a positive lens arranged closer to the object side than the other lenses of the third lens group. Blur correction is performed by moving the first lens perpendicularly to the optical axis. The third lens group is configured such that the following conditional expression is satisfied: 0.3
    • 一种变焦透镜,包括分别具有正,负和正折射光焦度的第一透镜组,第二透镜组和第三透镜组,其以从物体侧到像侧的顺序排列,使得当从广角变焦到长焦时, 第一透镜组移动到物体侧,并且透镜组之间的间距变化。 第三透镜组具有包括第一透镜的至少两个透镜,第一透镜是比第三透镜组的其它透镜更靠近物体侧布置的正透镜。 通过使第一透镜垂直于光轴移动来进行模糊校正。 第三透镜组被配置为使得满足以下条件表达式:0.3 <(1-betakFW)·betakRW <1.9,其中betakFW和betakRW分别是第一透镜和其余透镜的广角处的横向倍率 的第三个镜头组。
    • 7. 发明授权
    • Enhanced variable power zoom lens
    • 增强型变焦功率变焦镜头
    • US08451549B2
    • 2013-05-28
    • US13112101
    • 2011-05-20
    • Hisayuki YamanakaMakoto KanaiMasafumi SueyoshiMasaharu Hosoi
    • Hisayuki YamanakaMakoto KanaiMasafumi SueyoshiMasaharu Hosoi
    • G02B9/60
    • G02B15/173
    • The present invention is directed to provide an enhanced variable power zoom lens that is lightweight as a whole, and especially, has its focusing lens optics reduced in weight so as to relieve of a load on a focusing drive system, and that has its anti-vibration lens optics reduced in both diameter and weight so as to relieve of a load on an anti-vibration drive system and downsize the same. The enhanced variable power zoom lens is adapted to have the foremost or first lens group of positive refractivity, the second lens group of negative refractivity, the third lens group of positive refractivity, the fourth lens group of negative refractivity, and the fifth lens group arranged in this sequence from a position closer to the object where a distance between each pair of the adjacent lens groups is varied during zooming from the wide-angle end to the telephoto end, each lens group comes closer to the object at the telephoto end than at the wide-angle end, the third lens group and the fourth lens group separating the farthest apart from each other at the intermediate zooming range, and the fourth lens group is moved closer to the image plane for shifting from infinity focusing to proximity focusing.
    • 本发明旨在提供一种整体轻量化的增强型可变功率变焦透镜,特别是其聚焦透镜光学元件的重量减轻以减轻聚焦驱动系统上的负载, 振动透镜光学元件的直径和重量均减小,以减轻抗振动驱动系统的负载并减小其尺寸。 增强型可变焦度变焦透镜适于具有正折射率的第一或第一透镜组,负折射率的第二透镜组,正折射率的第三透镜组,负折射率的第四透镜组和布置的第五透镜组 在从广角端到望远端的变焦期间,从近距离物体的每一对相邻透镜组之间的距离变化的位置,每个透镜组在远摄端更靠近物体 广角端,第三透镜​​组和第四透镜组在中间变焦范围内彼此分离最远,并且第四透镜组移动到更靠近图像平面以从无限远聚焦移动到近距离聚焦。
    • 8. 发明申请
    • ENHANCED VARIABLE POWER ZOOM LENS
    • 增强型变焦镜头
    • US20110286105A1
    • 2011-11-24
    • US13112101
    • 2011-05-20
    • Hisayukui YAMANAKAMakoto KanaiMasafumi SueyoshiMasaharu Hosoi
    • Hisayukui YAMANAKAMakoto KanaiMasafumi SueyoshiMasaharu Hosoi
    • G02B15/14
    • G02B15/173
    • The present invention is directed to provide an enhanced variable power zoom lens that is lightweight as a whole, and especially, has its focusing lens optics reduced in weight so as to relieve of a load on a focusing drive system, and that has its anti-vibration lens optics reduced in both diameter and weight so as to relieve of a load on an anti-vibration drive system and downsize the same. The enhanced variable power zoom lens is adapted to have the foremost or first lens group of positive refractivity, the second lens group of negative refractivity, the third lens group of positive refractivity, the fourth lens group of negative refractivity, and the fifth lens group arranged in this sequence from a position closer to the object where a distance between each pair of the adjacent lens groups is varied during zooming from the wide-angle end to the telephoto end, each lens group comes closer to the object at the telephoto end than at the wide-angle end, the third lens group and the fourth lens group separating the farthest apart from each other at the intermediate zooming range, and the fourth lens group is moved closer to the image plane for shifting from infinity focusing to proximity focusing.
    • 本发明旨在提供一种整体轻量化的增强型可变功率变焦透镜,特别是其聚焦透镜光学元件的重量减轻以减轻聚焦驱动系统上的负载, 振动透镜光学元件的直径和重量均减小,以减轻抗振动驱动系统的负载并减小其尺寸。 增强型可变焦度变焦透镜适于具有正折射率的第一或第一透镜组,负折射率的第二透镜组,正折射率的第三透镜组,负折射率的第四透镜组和布置的第五透镜组 在从广角端到望远端的变焦期间,从近距离物体的每一对相邻透镜组之间的距离变化的位置,每个透镜组在远摄端更靠近物体 广角端,第三透镜​​组和第四透镜组在中间变焦范围内彼此分离最远,并且第四透镜组移动到更靠近图像平面以从无限远聚焦移动到近距离聚焦。
    • 9. 发明授权
    • Enhanced variable power zoom lens
    • 增强型变焦功率变焦镜头
    • US08542449B2
    • 2013-09-24
    • US13112157
    • 2011-05-20
    • Hisayuki YamanakaMakoto KanaiMasafumi SueyoshiMasaharu Hosoi
    • Hisayuki YamanakaMakoto KanaiMasafumi SueyoshiMasaharu Hosoi
    • G02B9/60
    • G02B15/173
    • An enhanced variable power zoom lens is lightweight in whole and in part, especially, having its focusing lens optics reduced in weight so as to relieve of a load on a focusing drive system, and having its anti-vibration lens optics reduced in both diameter and weight so as to relieve of a load on an anti-vibration drive system and downsize the same. The zoom lens has the foremost or first lens group of positive refractivity, the second lens group of negative refractivity, the third lens group of positive refractivity, the fourth lens group of negative refractivity, and the fifth lens group arranged in sequence from a position closer to the object. The fourth lens group moves toward the image plane for focusing on from the infinity to a proximity object while part of the third lens group moves orthogonal to the optical axis for shifting an image.
    • 增强型可变功率变焦透镜的整体和部分重量轻,特别是其聚焦透镜光学元件的重量减轻,以减轻聚焦驱动系统上的负载,并使其防振透镜光学器件的直径和直径都减小 以减轻抗振动驱动系统的负载并使其小型化。 变焦透镜具有正折射率的第一或第一透镜组,负折射率的第二透镜组,正折射率的第三透镜组,负折射率的第四透镜组,以及从靠近的位置排列的第五透镜组 对象。 第四透镜组朝着图像平面移动,用于从无限远到近距离物体聚焦,而第三透镜组的一部分正交于光轴移动以移动图像。
    • 10. 发明申请
    • ENHANCED VARIABLE POWER ZOOM LENS
    • 增强型变焦镜头
    • US20110286106A1
    • 2011-11-24
    • US13112127
    • 2011-05-20
    • Hisayuki YamanakaMakoto KanaiMasafumi SueyoshiMasaharu Hosoi
    • Hisayuki YamanakaMakoto KanaiMasafumi SueyoshiMasaharu Hosoi
    • G02B15/15
    • G02B15/173
    • The present invention is directed to provide an enhanced variable power zoom lens that has focusing lens optics reduced in weight so as to relieve of a load on a focusing drive system, and that has its anti-vibration lens optics reduced in both diameter and weight so as to relieve of a load on an anti-vibration drive system and downsize the same. The enhanced variable power zoom lens is adapted to have the foremost or first lens group G1 of positive refractivity, the second lens group G2 of negative refractivity, the third lens group G3 of positive refractivity, the fourth lens group G4 of negative refractivity, and the fifth lens group G5 of positive or negative refractivity arranged in sequence from a position closer to the object where the fourth lens group G4 serves as a focusing lens, and the third lens group G3 and the fifth lens group G5 together move on and along the same cam structure during zooming.
    • 本发明旨在提供一种增强型可变功率变焦镜头,其具有减轻重量的聚焦透镜光学元件,以便减轻聚焦驱动系统上的负载,并且其抗振动透镜光学器件的直径和重量都减小了 以减轻抗振动驱动系统的负载,并减小其尺寸。 增强型可变焦度变焦透镜适于具有正折射率的最前面或第一透镜组G1,负折射率的第二透镜组G2,正折射率的第三透镜组G3,负折射率的第四透镜组G4, 第五透镜组G5的正或负折射率从第四透镜组G4用作聚焦透镜的目的靠近的位置排列,并且第三透镜组G3和第五透镜组G5一起沿着相同的方向移动 变焦时的凸轮结构。