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    • 53. 发明申请
    • Wearable display unit, headphones and system provided with these
    • 可佩戴的显示单元,耳机和系统提供这些
    • US20060238878A1
    • 2006-10-26
    • US11473559
    • 2006-06-23
    • Nobuyuki MiyakeShigeru KatoMasaki Ootsuki
    • Nobuyuki MiyakeShigeru KatoMasaki Ootsuki
    • G02B27/14
    • G02B27/0176H04N5/7491
    • Inclination of an image display unit is prevented at the time of using a wearable display unit in which the image display unit can move between a projection position where the image display unit comes in front of a user's eye and a retracted position where the image display unit has been retracted from the front of the user's eye. A display support member 27 is prevented from rotating in relation to a display support member housing part 31 in a direction included in a plane perpendicular to the longitudinal direction of the display support member 27, even in a state that the display support member can move. To that end, grooves 28a, 28b extending in the longitudinal direction are formed in the display support member 27, while guide rollers 34a, 34a in contact with these grooves are provided within the display support member housing part 31.
    • 在使用图像显示单元可以在图像显示单元进入用户眼睛的前方的投影位置与图像显示单元之间的缩回位置之间移动的可佩戴显示单元时,防止了图像显示单元的倾斜 已经从用户眼睛的前部缩回。 即使在显示支撑构件能够移动的状态下,显示支撑构件27也能够防止相对于显示支撑构件收纳部31向包括在垂直于显示支撑构件27的纵向的平面的方向上旋转。 为此,在显示支撑部件27上形成有沿长度方向延伸的槽28a,28b,在显示用支承部件收容部31内设置有与这些槽接触的导辊34a,34a。
    • 54. 发明授权
    • Real image mode variable magnification finder
    • 实像模式可变放大倍数
    • US06493150B2
    • 2002-12-10
    • US09998180
    • 2001-12-03
    • Shigeru Kato
    • Shigeru Kato
    • G02B2500
    • G02B15/177
    • A real image mode variable magnification finder has an objective optical system with positive refracting power, an image erecting optical system, and an ocular optical system with positive refracting power. The objective optical system has a first lens unit with negative refracting power, a second lens unit with negative refracting power, a third lens unit with positive refracting power, and a fourth lens unit with negative refracting power. When the magnification of the finder is changed, at least one lens unit, namely the third lens unit is moved. In this way, the total length of the objective optical system can be reduced, and thus a compact finder is obtained.
    • 实像模式可变放大倍数取景器具有具有正折射率的物镜光学系统,图像直立光学系统和具有正折射力的眼睛光学系统。 物镜光学系统具有负折射力的第一透镜单元,具有负折射力的第二透镜单元,具有正折射率的第三透镜单元和具有负折射力的第四透镜单元。 当取景器的放大率改变时,至少一个透镜单元,即第三透镜单元被移动。 以这种方式,可以减小物镜光学系统的总长度,从而获得小型取景器。
    • 55. 发明授权
    • Zoom optical system
    • 变焦光学系统
    • US06411443B1
    • 2002-06-25
    • US09386382
    • 1999-08-31
    • Shigeru KatoMasaru MorookaSeiji Shimizu
    • Shigeru KatoMasaru MorookaSeiji Shimizu
    • G02B1514
    • G02B15/16
    • An optical system composed, in order from the object side, of a first lens unit which has a positive power or is powerless, a second lens unit which has a positive power, a third lens unit which has a positive power and a fourth lens unit which has a negative power, and configured to change its magnification by varying airspaces reserved between the lens unit. The fourth lens unit is composed of a single lens element or the optical system as a whole is composed of lens element in a number not exceeding twice a number of movable lens units. The optical system is composed of a small number of lens elements and compact.
    • 一种光学系统,从物体侧起依次具有正功率或无功率的第一透镜单元,具有正光焦度的第二透镜单元,具有正光焦度的第三透镜单元和第四透镜单元 其具有负功率,并且被配置为通过改变保留在透镜单元之间的空间来改变其放大率。 第四透镜单元由单个透镜元件组成,或者整个光学系统由不超过两倍数量的可移动透镜单元的透镜元件组成。 光学系统由少量的透镜元件组成并且紧凑。
    • 56. 发明授权
    • Finder optical system
    • Finder光学系统
    • US6088156A
    • 2000-07-11
    • US867756
    • 1997-06-03
    • Shigeru Kato
    • Shigeru Kato
    • G02B7/32G02B23/00
    • G02B7/32
    • A finder optical system has an objective optical system for forming an intermediate image of an object and an eyepiece optical system, and is disposed independent of a photographing optical system. The objective optical system includes a reflecting member. A lens unit situated on the object side of the intermediate image is used as a correcting lens and moved along the optical axis. The finder optical system is thus corrected for diopter and satisfies a condition:0.1
    • 取景器光学系统具有用于形成物体和目镜光学系统的中间图像的物镜光学系统,并且被独立于拍摄光学系统设置。 物镜光学系统包括反射构件。 位于中间图像的物体侧的透镜单元用作校正透镜并沿着光轴移动。 因此,取景器光学系统被校正为屈光度,并且满足以下条件:0.1 <|1000xαF/ fR2 | <7.0其中α是校正透镜的最大纵向放大倍率,fR是眼镜光学系统的焦距 。
    • 59. 发明授权
    • Real image mode variable magnification finder optical system
    • 实像模式可变倍率取景器光学系统
    • US5231534A
    • 1993-07-27
    • US821922
    • 1992-01-16
    • Shigeru Kato
    • Shigeru Kato
    • G02B15/177G02B23/14
    • G02B15/177G02B23/145
    • A real image mode variable magnification finder optical system includes an objective lens system having a positive refractive power as a whole, an image erecting system for erecting an intermediate image formed by the objective lens system, and an eyepiece system having a positive refracting power as a whole, in which the entrance surface of the image erecting system has a negative refracting power and an intermediate image is formed between the entrance surface of the image erecting system and the eyepiece system. Thus, the real image mode variable magnification finder optical system, although it is such an optical system that an erect image is obtained by a Porro prism system constructed of a plurality of reflecting members, has important advantages in practical use that a finder length is reduced, optical performance is favorable, design is compact, and finder magnification is high.
    • 实像模式可变放大倍率取景器光学系统包括整体具有正折光力的物镜系统,用于架设由物镜系统形成的中间图像的图像搭建系统和具有正折射力的目镜系统 整体,其中图像架设系统的入射面具有负折射力,并且在图像架设系统的入射面和目镜系统之间形成中间图像。 因此,实像可变倍率取景器光学系统虽然是通过由多个反射构件构成的波罗棱镜系统获得直立图像的这样的光学系统,但在实际使用中,取景器长度减小是重要的优点 ,光学性能良好,设计紧凑,取景器倍率高。