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    • 1. 发明授权
    • Eyepiece variable focal length optics
    • 目镜可变焦距光学
    • US06529334B2
    • 2003-03-04
    • US09851386
    • 2001-05-09
    • Shinichiro IshiiTakayuki Ito
    • Shinichiro IshiiTakayuki Ito
    • G02B2500
    • G02B25/001G02B15/177
    • Eyepiece variable focal length optics comprise, in order from the objective optics, a negative lens group, a positive lens group, a positive lens group and a positive lens group; during variable focal length from longest focal length side to shortest focal length side, the first lens group moves monotonically toward the objective optics, the second lens group moves monotonically toward the eye, and the third lens group moves toward the eye in such a way that the distance from the second lens group is first increased and then decreased; the fourth lens group is stationary. The eyepiece variable focal length optics further satisfies the following condition (1): 0.4
    • 目镜可变焦距光学器件从物镜的顺序包括负透镜组,正透镜组,正透镜组和正透镜组; 在从最长焦距侧到最短焦距侧的可变焦距期间,第一透镜组朝向物镜单调移动,第二透镜组朝向眼睛单调移动,并且第三透镜组朝向眼睛移动,使得 第二透镜组的距离首先增加然后减小; 第四透镜组是静止的。 目镜可变焦距光学器件还满足以下条件(1):其中L23(max):可变焦距期间第二和第三透镜组之间的轴向气隙的最大值; L23:第二和第二透镜组之间的轴向气隙 第三透镜组以最长焦距状态; f(h):整个目镜可变焦距光学器件的最短焦距。
    • 2. 发明授权
    • Eyepiece
    • 目镜
    • US06469836B1
    • 2002-10-22
    • US09606689
    • 2000-06-30
    • Chikara YamamotoHitoshi Miyano
    • Chikara YamamotoHitoshi Miyano
    • G02B2500
    • G02B25/001
    • An eyepiece comprises, successively from the eye side, a first lens L1, which is a diffractive optical element with a diffractive optical surface on the object side, made of a biconvex lens having a surface with a greater curvature directed onto the eye side; and a second lens L2, which is a diffractive optical element with a diffractive optical surface on the eye side, made of a meniscus lens with a positive refracting power having a convex surface directed onto the eye side. Both of the diffractive optical elements satisfy the following conditional expression (1): E
    • 目镜从眼侧连续地包括第一透镜L1,其是在物体侧具有衍射光学表面的衍射光学元件,由具有更大曲率的指向眼睛侧的表面的双凸透镜制成; 以及具有在眼睛侧的衍射光学表面的衍射光学元件的第二透镜L2由具有指向眼睛侧的凸面的正折射率的弯月形透镜制成。 衍射光学元件都满足以下条件表达式(1):其中E是相位差函数的二次项的系数。
    • 3. 发明授权
    • Eyepiece lens for a display image observation device
    • 用于显示图像观察装置的目镜
    • US06181479B2
    • 2001-01-30
    • US09391043
    • 1999-09-16
    • Noboru Koizumi
    • Noboru Koizumi
    • G02B2500
    • G02B25/001
    • An eyepiece lens for a display image observation device is disclosed that has only six lens elements with refractive power, in the order from the eye side, as follows: a first lens group G1 formed of two lens elements L1 and L2, both of positive refractive power, with the lens element L1 on the eye side being of positive meniscus shape with its convex surface on the eye side; a second lens group G2 formed of two lens elements L3 and L4 which are either separated by air or cemented together, the first of the lens elements on the eye side (i.e., L3) having negative refractive power and the other having positive refractive power; and a third lens group G3 formed of two lens elements which are either separated by air or cemented together, the first of the lens elements on the eye side (i.e., L5) having positive refractive power and the other having negative refractive power. Preferably, one of the surfaces of the lens elements in the first lens group G1 is aspherical, and specified conditions are satisfied in order to achieve favorable aberration correction in an eyepiece lens that is compact.
    • 公开了一种用于显示图像观察装置的目镜透镜,其具有如下从眼睛的顺序具有屈光力的六个透镜元件:由两个透镜元件L1和L2形成的第一透镜组G1,正折射率 功率,眼睛侧的透镜元件L1具有正的弯月面形状,其凸面在眼睛侧; 由空气分离或粘合在一起的两个透镜元件L3和L4形成的第二透镜组G2,眼睛侧的第一透镜元件(即,L3)具有负折射光焦度,另一个具有正折射光焦度; 以及由空气分离或粘合在一起的两个透镜元件形成的第三透镜组G3,眼睛侧的第一透镜元件(即,L5)具有正的折射光焦度,另一个具有负折光力。 优选地,第一透镜组G1中的透镜元件的一个表面是非球面的,并且为了在紧凑的目镜中实现良好的像差校正,满足特定条件。
    • 5. 发明授权
    • Eyepiece lens system, telescope, binocular, and microscope
    • 目镜透镜系统,望远镜,双目镜和显微镜
    • US06529335B2
    • 2003-03-04
    • US09824216
    • 2001-04-03
    • Satoshi Fukumoto
    • Satoshi Fukumoto
    • G02B2500
    • G02B25/001
    • An eyepiece lens system using an aspherical lens can be formed at a low cost, having an eye relief equivalent to 80% or more of the focal length of the entire eyepiece lens system, with aberrations satisfactorily corrected up to the circumference of the field of view, as well as a telescope, a binocular and a microscope. The eyepiece lens system comprises a cemented lens and a positive lens, and at least one of the lens surfaces is formed aspherical. The aspherical surface is a hybrid type spherical surface formed by applying a synthetic resin layer on a basic spherical surface made of glass. There are also provided a telescope, a binocular and a microscope employing such eyepiece lens system.
    • 可以以低成本形成使用非球面透镜的目镜透镜系统,具有相当于整个目镜透镜系统的焦距的80%或更多的眼睛释放,其像差令人满意地校正到视场的周长 ,以及望远镜,双目镜和显微镜。 目镜透镜系统包括胶合透镜和正透镜,并且至少一个透镜表面形成为非球面。 非球面是通过在由玻璃制成的基本球面上施加合成树脂层而形成的混合型球面。 还提供了望远镜,双目镜和使用这种目镜透镜系统的显微镜。
    • 7. 发明授权
    • Variable-power eyepiece optical system
    • 可变功率目镜光学系统
    • US06229653B1
    • 2001-05-08
    • US09459632
    • 1999-12-13
    • Moriyasu Kanai
    • Moriyasu Kanai
    • G02B2500
    • G02B15/177G02B25/001
    • A variable-power eyepiece optical system, which is used in combination with an objective optical system, includes a negative first lens group, a second lens group having a positive first sub lens group and a positive second sub lens group, and a positive third lens group, in this order from the objective optical system. The first lens group, and the first and second sub lens groups of the second lens group are made moveable along the optical axis upon variable power, while the third lens group is made immoveable. At the time of variable power, the first sub lens group and the second sub lens group move independently of each other in a direction opposite to the direction along which the first lens group moves, and thereby the resultant power of the first and second sub lens groups is varied.
    • 与目标光学系统组合使用的可变功率目镜光学系统包括负第一透镜组,具有正第一子透镜组和正第二子透镜组的第二透镜组,以及正第三透镜 组,按此顺序从物镜光学系统。 第一透镜组以及第二透镜组的第一和第二子透镜组在可变功率下可沿着光轴移动,而第三透镜组被制成不可移动。 在可变功率时,第一子透镜组和第二子透镜组在与第一透镜组移动的方向相反的方向上彼此独立地移动,从而第一和第二子透镜的合成光焦度 团体是多样的。
    • 8. 发明授权
    • Zoom eyepiece optical system
    • 变焦目镜光学系统
    • US06735019B2
    • 2004-05-11
    • US10403041
    • 2003-04-01
    • Moriyasu Kanai
    • Moriyasu Kanai
    • G02B2500
    • G02B15/14G02B25/001
    • A zoom eyepiece optical system, which is used with an objective optical system, includes a first lens group which is stationary with respect to the objective optical system, a negative second lens group which is movable upon zooming, a positive third lens group which is movable upon zooming, and a stationary positive fourth lens group, in this order from the objective optical system. Upon zooming from the long focal length extremity to the short focal length extremity of the zoom eyepiece optical system, the negative second lens group and the positive third lens group move away from each other, and an intermediate image is formed between the negative second lens group and the positive third lens group.
    • 与目标光学系统一起使用的变焦目镜光学系统包括相对于物镜光学系统静止的第一透镜组,可变焦时可移动的负第二透镜组,可移动的正的第三透镜组 并且从物镜光学系统起依次为固定的正的第四透镜组。 从变焦目镜光学系统的长焦距末端变焦到短焦距端部时,负第二透镜组和正第三透镜组彼此远离,并且中间图像形成在负第二透镜组 和正第三透镜组。
    • 9. 发明授权
    • Eyepiece lens, objective lens, and optical apparatus having them
    • 目镜透镜,物镜及具有它们的光学装置
    • US06735018B2
    • 2004-05-11
    • US10235749
    • 2002-09-06
    • Hiroyuki KodamaSaburo Sugawara
    • Hiroyuki KodamaSaburo Sugawara
    • G02B2500
    • G02B25/001
    • An eyepiece lens is constructed with, in order from an entrance side for light to an exit side for light, first, second, third, fourth and fifth lens units of negative, positive, positive, positive and positive refractive powers, respectively. Each of the first, second, third, fourth and fifth lens units of the eyepiece lens is composed only of one lens or a cemented lens, and an intermediate image by an objective lens is formed between the second lens unit and the third lens unit. An objective lens is constructed with, in order from an object side to an image side, first and second lens units of positive and negative refractive powers, respectively. The first and second lens units of the objective lens are composed of one positive lens and of one positive lens and one negative lens, respectively, and the various conditions are appropriately set. An optical apparatus includes the eyepiece lens, the objective lens and an erecting prism.
    • 从光入射侧到出射侧的光,第一,第二,第三,第四和第五透镜单元的负,正,正,正折射力分别依次构成目镜透镜。 目镜透镜的第一,第二,第三,第四和第五透镜单元中的每一个仅由一个透镜或胶合透镜构成,并且在第二透镜单元和第三透镜单元之间形成由物镜形成的中间图像。 物镜从物体侧到像侧依次分别构成具有正和负折射光焦度的第一透镜单元和第二透镜单元。 物镜的第一和第二透镜单元分别由一个正透镜和一个正透镜和一个负透镜组成,并且各种条件被适当地设置。 光学装置包括目镜,物镜和直立棱镜。