会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 1. 发明授权
    • Pentagonal prism module for camera viewfinder
    • 用于相机取景器的五角棱镜模块
    • US4278339A
    • 1981-07-14
    • US148596
    • 1980-05-12
    • Isamu UchidaYasuo YamazakiTakeshi Egawa
    • Isamu UchidaYasuo YamazakiTakeshi Egawa
    • G03B19/12G03B13/08
    • G03B19/12
    • A pentagonal prism for use in a viewfinder of a single lens reflex camera makes use of total reflection of viewfinder light flux at effective optical path regions on its pair of roof surfaces. The prism constitutes a module together with a protection cover attachable thereto for protection of the roof surfaces. The cover is provided with a pair of roof walls accomodated to the roof surfaces of the prism and including recessed portions corresponding to the effective optical path regions on the roof surfaces and peripheral portions corresponding to portions on the roof walls out of the effective optical path regions. Upon attachment of the cover to the prism, the peripheral portions contact the portions on the roof surfaces out of the effective optical path regions and an air space which ensures the total reflection is left between the inner surfaces of the recessed portions and the effective optical path regions on the roof surfaces. A ghost may be prevented from occurring when the inner surfaces of the roof walls are black-frosted, black-ground or black-roughened for light absorption or when the roof walls are designed to intersect with one another at a ridge angle of less than 90.degree. .
    • 用于单镜头反光相机取景器的五棱镜利用其对对屋顶表面上有效光路区域的取景器光通量的全反射。 棱镜与可附接到其上的保护盖一起构成模块,以保护屋顶表面。 该盖设有一对屋顶壁,其与棱镜的屋顶表面相对应,并且包括对应于屋顶表面上的有效光路区域的凹陷部分和与有效光路区域之外的屋顶壁上的部分相对应的周边部分 。 在将盖子附接到棱镜时,周边部分接触有效光路区域之外的屋顶表面上的部分,并且确保在凹部的内表面和有效光路之间留下全反射的空气空间 屋顶表面的区域。 当屋顶壁的内表面被黑色磨砂,黑色或黑色粗糙化以用于光吸收时或者当屋顶壁被设计成以小于90°的脊角彼此相交时,可以防止发生鬼 DEG。
    • 2. 发明授权
    • Pentagonal prism for camera viewfinder
    • 五角棱镜用于相机取景器
    • US4309078A
    • 1982-01-05
    • US147532
    • 1980-05-07
    • Kyoichi HaraYasuo YamazakiTakeshi Egawa
    • Kyoichi HaraYasuo YamazakiTakeshi Egawa
    • G03B13/26G02B5/04G02B27/00C03C3/10C03C3/30
    • G02B27/0018G02B5/04Y10S501/903
    • A pentagonal prism for use in a viewfinder of a single lens reflex camera is made of a glass whose refractive index and Abbe number are not less than 1.6 and 45, respectively. Effective optical path regions on a pair of roof surfaces of the prism are left transparent so that viewfinder light can be totally reflected at both of the roof surfaces. A light absorbing paint is coated in an upper front surface, a pair of said surfaces of the prism as well as at regions other than effective optical path region of the roof surfaces, a bottom light incident surface and a rear light exit surface of the prism. The light absorbing paint prevents the occurrence of ghost images in the view field of the viewfinder. New type glasses suited for the prism are proposed.
    • 用于单镜头反光相机的取景器的五棱镜由折射率和阿贝数分别不小于1.6和45的玻璃制成。 在棱镜的一对屋顶表面上的有效光路区域保持透明,使得取景器光可以在两个屋顶表面被完全反射。 光吸收涂料涂覆在上前表面,一对棱镜的所述表面以及除屋顶表面的有效光路区域之外的区域,棱镜的底部光入射表面和后光出射表面 。 光吸收涂料可以防止取景器视野中出现重影。 提出了适用于棱镜的新型眼镜。
    • 5. 发明授权
    • Indicating devices for camera viewfinders
    • 指示相机取景器的设备
    • US4217044A
    • 1980-08-12
    • US851975
    • 1977-11-16
    • Keiji YamazakiTakeshi EgawaYasuo YamazakiHiroshi Ueda
    • Keiji YamazakiTakeshi EgawaYasuo YamazakiHiroshi Ueda
    • G03B17/20
    • G03B17/20
    • An indicating device for a camera, which includes a viewfinder and which is selectively settable to either an automatic diaphragm control mode or an automatic shutter speed control mode, enables selective observation of the f-number and the shutter speed scales in accordance with the selection of the exposure control modes. The f-number and shutter speed scales are provided on a common transparent scale plate which is interconnected with an exposure control mode selecting member by a scale shifting mechanism. The scale shifting mechanism shifts the scale plate to a first position wherein only the f-number scale is in the viewfinder optical path upon selection of the automatic diaphragm control mode, and to a second position wherein both the f-number scale and the shutter speed scale are in the viewfinder optical path. A scale shielding member is provided within the viewfinder optical path to shield the f-number scale when the scale plate is in the second position.
    • 一种用于摄像机的指示装置,其包括取景器并且可选择性地设置为自动光圈控制模式或自动快门速度控制模式,使得能够根据选择性地选择观察f数和快门速度标度 曝光控制模式。 f数和快门速度刻度设置在通过刻度移位机构与曝光控制模式选择部件互连的公共透明刻度板上。 刻度移位机构将刻度盘移动到第一位置,其中在选择自动光圈控制模式时只有f数字刻度在取景器光路中,并且到第二位置,其中f数字刻度和快门速度 取景器光路中的刻度。 取景器光路中设有刻度屏蔽构件,以在刻度板处于第二位置时屏蔽f数量表。
    • 6. 发明授权
    • Viewfinder for single lens reflex cameras
    • 单反相机取景器
    • US4206988A
    • 1980-06-10
    • US29211
    • 1979-04-12
    • Takayoshi MiyamotoTakeshi EgawaYasuo Yamazaki
    • Takayoshi MiyamotoTakeshi EgawaYasuo Yamazaki
    • G03B19/12G03B13/02
    • G03B19/12
    • A viewfinder for a single lens reflex camera of the T.T.L. light measurement type, wherein light measurement is apt to be affected by external light entering through an eyepiece, includes a diopter adjusting mechanism and an eyepiece shutter. The eyepiece is divided into at least a movable first optical element and a fixed second optical element. The diopter adjusting mechanism is capable of shifting the first optical element for diopter adjustment within a predetermined space which extends along the viewfinder optical axis and is at least partially common to a space that the eyepiece shutter occupies at an advanced position for blocking the viewfinder optical path. Operation of a manually operable member for shifting the eyepiece shutter toward the advanced positon causes the first optical element to be retracted toward the rear away from the predetermined space prior to the shift of the eyepiece shutter into the advanced position.
    • T.T.L.的单镜头反光相机的取景器 光测量类型,其中光测量容易受到通过目镜进入的外部光的影响,包括屈光度调节机构和目镜快门。 目镜至少分为可移动的第一光学元件和固定的第二光学元件。 屈光度调节机构能够将第一光学元件移动到沿着取景器光轴延伸的预定空间内的屈光度调节的第一光学元件,并且至少部分地与目镜快门占据用于阻挡取景器光路的高级位置的空间相同 。 用于将目镜挡板朝向前进位置移动的可手动操作构件的操作使得第一光学元件在目镜挡板移动到前进位置之前朝向后方向远离预定空间缩回。
    • 8. 发明申请
    • Working Vehicle Travel Control Apparatus
    • 工作车辆行驶控制装置
    • US20130152574A1
    • 2013-06-20
    • US13818799
    • 2011-06-24
    • Yasuo YamazakiShouroku Kawahara
    • Yasuo YamazakiShouroku Kawahara
    • E02F9/22
    • E02F9/2079E02F3/283E02F9/202E02F9/22E02F9/2235E02F9/2253E02F9/2289E02F9/2296F16H47/02F16H61/4148F16H61/421F16H61/462F16H61/702
    • A working vehicle travel control apparatus, comprising: a variable displacement hydraulic pump; a variable displacement hydraulic motor connected in a closed circuit to the hydraulic pump and driven upon pressure oil from the hydraulic pump; a first control unit controls a motor displacement angle of the hydraulic motor by an electrical signal; a constant mesh transmission includes a clutch device that includes a High clutch section transmits power at a first transmission gear ratio and a Low clutch section that transmits power at a second transmission gear ratio, which is greater than the first transmission gear ratio, the constant mesh transmission transmits or interrupts power from the hydraulic motor; and a second control unit controls the first control unit so as to reduce the motor displacement angle to a predetermined value when the transmission is switched from the first transmission gear ratio to the second transmission gear ratio.
    • 一种工作车辆行驶控制装置,包括:可变排量液压泵; 连接在液压泵的闭路回路中的可变排量液压马达,并从液压泵的压力油驱动; 第一控制单元通过电信号控制液压马达的马达位移角; 恒定网状变速器包括离合器装置,其包括高速离合器部分以第一变速齿轮比传递动力;以及低速离合器部分,其以大于第一变速比的第二变速比传递动力;常数网 传动传动或中断液压马达的动力; 并且第二控制单元控制所述第一控制单元,以便当所述变速器从所述第一变速齿轮比切换到所述第二变速齿轮比时,将所述电动机位移角减小到预定值。