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公开(公告)号：US4586786A
公开(公告)日：1986-05-06
申请号：US720475
申请日：1985-04-08
CPC分类号： G02B27/16 , G02B27/143
摘要： Disclosed is an area type beam splitter disposed in the light beam from an imaging optical system to split the light beam. This beam splitter has dot-like reflecting surfaces formed on a substrate. The dot-like reflecting surfaces are arranged at pseudo-random.
摘要翻译： 公开了一种设置在来自成像光学系统的光束中以分裂光束的区域型分束器。 该分束器具有形成在基板上的点状反射面。 点状反射面以伪随机方式排列。
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公开(公告)号：US4650988A
公开(公告)日：1987-03-17
申请号：US283001
申请日：1981-07-13
CPC分类号： G02B27/108 , G02B27/144 , G02B27/145 , G02B27/147 , G02B27/16 , G02B27/46
摘要： An area-type beam splitter is disposed across the optical path of an imaging optical system. Photodetector arrays are located across the optical path portions divided by the beam splitter. The photodetector arrays in the respective optical path portions are arranged in different positions from one another in such a manner that images different from one another in imaging performance will be read by the respective photodetector arrays.
摘要翻译： 区域型分束器跨越成像光学系统的光路设置。 光检测器阵列位于由分束器分割的光路部分的两侧。 各个光路部分中的光电检测器阵列被布置在彼此不同的位置，使得在成像性能中彼此不同的图像将被各个光电检测器阵列读取。
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公开(公告)号：US4467188A
公开(公告)日：1984-08-21
申请号：US333883
申请日：1981-12-23
CPC分类号： G02B27/1013 , G02B27/1086 , G02B5/1814 , G02B5/1871 , G02B7/36
摘要： A phase type diffraction grating and a microprism for splitting the light beam from an objective lens into three light beams. The three light beams are split in one direction by the diffraction grating and are directed onto three rows of line sensors disposed on the same plane. In the two optical paths between the diffraction grating and the line sensors, there is disposed an optical path length difference imparting element for forming on the line sensors images at a predetermined focal plane of the objective lens and planes forward and rearward of the predetermined focal plane. Thus, the line sensors detect the images at the predetermined focal plane and at planes forward and rearward of the predetermined focal plane.
摘要翻译： 用于将来自物镜的光束分成三个光束的相位衍射光栅和微棱镜。 三个光束通过衍射光栅在一个方向上分离，并且被引导到设置在同一平面上的三行线传感器。 在衍射光栅和线传感器之间的两个光路中，设置光路长度差分赋予元件，用于在线上形成物镜的预定焦平面处的图像和预定焦平面的前后的平面 。 因此，线传感器检测预定焦平面上的图像和预定焦平面的前后的图像。
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公开(公告)号：US4338012A
公开(公告)日：1982-07-06
申请号：US204009
申请日：1980-10-31
摘要： This specification discloses a focusing screen adapted for use with the range finder of a camera, particularly a split image type focusing screen. This screen comprises a pair of portions desposed in the center of the real image plane of the camera, and each portion has a refracting means and a diffracting means. Thereby, in a defocused condition, the images viewed through the portions are split each other and blurred. Further, this screen can be used wth an objective lens having a small aperture ratio.
摘要翻译： 本说明书公开了一种适用于相机的测距仪，特别是分割图像型聚焦屏的聚焦屏。 该屏幕包括在相机的实像平面的中心部分的一对部分，并且每个部分具有折射装置和衍射装置。 因此，在散焦状态下，通过这些部分观看的图像被分开并模糊。 此外，该屏幕可以用于具有小孔径比的物镜。
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公开(公告)号：US4255032A
公开(公告)日：1981-03-10
申请号：US60283
申请日：1979-07-25
CPC分类号： G03B17/20 , G03H2001/2284
摘要： A camera having a holographic indicator in which a focused image hologram is held on an image plane of the view finder of the camera and a light source is arranged to illuminate the hologram in such a direction that the light transmitted through the hologram goes out of the path of the view finder. The hologram may be also a relief type blazed hologram which has a transmitting factor (zero-order diffraction factor) higher than 90% for the light from an object and which makes the light from the reconstructed image of the hologram pass through the path of the view finder. This hologram indicator never affects the object's image when the hologram is not illuminated.
摘要翻译： 具有全息指示器的照相机，其中聚焦图像全息图被保持在相机的取景器的图像平面上，并且光源被布置成沿着使透过全息图的光流出的方向照亮全息图 取景器的路径。 全息图也可以是浮雕型闪耀全息图，其具有对于来自物体的光高于90％的透射因子（零级衍射因子），并且使来自全息图的重建图像的光通过 取景器。 当全息图不被照亮时，该全息图指示器不影响对象的图像。
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6.发明授权Focus detecting system detecting position of images formed from the center and periphery of the optical axis 失效聚焦检测系统检测从光轴的中心和周边形成的图像的位置
公开(公告)号：US4563576A
公开(公告)日：1986-01-07
申请号：US537676
申请日：1983-09-30
申请人： Susumu Matsumura , Takashi Suzuki , Kenji Suzuki
发明人： Susumu Matsumura , Takashi Suzuki , Kenji Suzuki
CPC分类号： G02B7/343
摘要： A focusing detecting system for discriminating a focusing state of an object lens by detecting a relative positional relation of a plurality of object images formed by light fluxes from the object lens, by photo-sensing means is disclosed. A plurality of object images are formed based on a light flux from a center area of the object lens around an optical axis and a plurality of object images are formed based on a light flux an area in the periphery of the center area around the optical axis, by optical means disposed behind an image plane of the object lens. Light shielding means having a plurality of slits is disposed near the image plane. By those means, a state is which the object images based on the light fluxes from the center area of the object lens around the optical axis and the peripheral area are detectable and a state is which the object images based on only the light flux from the center area of the object lens around the optical axis is detectable are discriminated.
摘要翻译： 公开了一种用于通过检测由物镜的光束形成的多个物体图像的相对位置关系，通过光感测装置来鉴别物镜的聚焦状态的聚焦检测系统。 基于来自光轴的物镜的中心区域的光束形成多个物体图像，并且基于光通量在光轴周围的中心区域周围的区域形成多个物体图像 通过设置在物镜的像平面后面的光学装置。 具有多个狭缝的遮光装置设置在图像平面附近。 通过这些方式，基于来自光轴的周边区域的物镜的中心区域的光束的对象图像被检测到的状态是基于仅来自于该光轴的光通量的对象图像的状态 物体周围的光轴的中心区域是可检测的。
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公开(公告)号：US4534637A
公开(公告)日：1985-08-13
申请号：US656430
申请日：1984-10-02
申请人： Takashi Suzuki , Susumu Matsumura , Keiji Ohtaka
发明人： Takashi Suzuki , Susumu Matsumura , Keiji Ohtaka
CPC分类号： G02B7/32
摘要： In the disclosed camera, an optical arrangement projects substantially collimated light rays from a light emitter toward an object through an objective system in a finder, and a light receiver produces a signal that determines the relationship between the object and the camera by detecting the light from the objective system after reflection by the object.
摘要翻译： 在所公开的相机中，光学装置通过取景器中的物镜系统将来自发光体的基本上准直的光线投射到物体，并且光接收器产生通过检测物体和照相机之间的关系的信号， 客观体系经过物体反射后。
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公开(公告)号：US4560863A
公开(公告)日：1985-12-24
申请号：US527210
申请日：1983-08-29
申请人： Susumu Matsumura , Takashi Suzuki , Kenji Suzuki
发明人： Susumu Matsumura , Takashi Suzuki , Kenji Suzuki
CPC分类号： G02B7/343
摘要： In a focus detecting device, an object's image formed on a prescribed image plane of a photo-taking lens is once again formed by a secondary imaging optical system disposed behind the prescribed image plane into two non-superposed object's images based on light flux portions symmetrically split relative to the optical axis of the photo-taking lens; light sensitive elements are respectively disposed in positions where these images of the object are re-imaged by the secondary imaging optical system; and an in-focus state of the photo-taking lens is arranged to be detected by detecting the relative positional relation of these reformed images of the object by means of these light sensitive elements. The focus detecting device includes light splitting means which is arranged in the secondary imaging optical system to split a light flux coming from the exit pupil of the photo-taking lens into a middle part portion and a peripheral portion. With this arrangement, an object's image which becomes necessary as the F-number of the exit pupil of the photo-taking lens varies or an object's image which permits simultaneous use of another detecting method in the device can be obtained by the secondary imaging optical system.
摘要翻译： 在焦点检测装置中，形成在摄影镜头的规定图像平面上的物体的图像再次由设置在规定图像平面后面的二次成像光学系统形成为基于对称的光通量部分的两个非重叠物体的图像 相对于摄影镜头的光轴分割; 光敏元件分别设置在通过次级成像光学系统对物体的这些图像进行再成像的位置; 并且通过利用这些光敏元件检测物体的这些重整图像的相对位置关系，来设置摄影镜头的对焦状态。 焦点检测装置包括分光装置，其被布置在次级成像光学系统中，以将来自摄影镜头的出射光瞳的光束分成中间部分和周边部分。 利用这种布置，由于摄像透镜的出射光瞳的F数变得必要的物体的图像，或者可以通过二次成像光学系统获得允许同时使用该装置中的另一种检测方法的物体的图像 。
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公开(公告)号：US4336989A
公开(公告)日：1982-06-29
申请号：US209491
申请日：1980-11-24
申请人： Susumu Matsumura , Takashi Suzuki
发明人： Susumu Matsumura , Takashi Suzuki
摘要： This specification discloses a focusing screen adapted to be mounted in the range finder of a single lens reflex camera. A diffraction lattice is provided in the focus indicating part of the focusing screen. The diffraction lattice comprises a periodical arrangement of optically asymmetric unit structures in which +1st diffracted light and -1st diffracted light assume a color-complementing relation, and in the defocus (out of focus) condition, double images colored in two colors mutually having a color-complementing relation are produced. Further, this diffraction lattice structure is such that the period directions are opposite to each other in the upper and lower half areas of the focus indicating part and therefore, the manner of coloring is inversely symmetric in the upper and lower areas and color split occurs even at the bondary between these areas. These phenomena disappear when the focus condition is brought about.
摘要翻译： 本说明书公开了一种适于安装在单镜头反光相机的测距仪中的聚焦屏。 在聚焦屏幕的聚焦指示部分提供衍射格。 衍射光栅包括光学非对称单位结构的周期性布置，其中+第一衍射光和第一衍射光呈现颜色互补关系，并且在散焦（失焦））条件下，双色图像以相互具有的 产生色彩互补关系。 此外，这种衍射晶格结构使得在焦点指示部分的上半部分和下半部分中的周期方向彼此相反，因此着色方式在上部和下部区域中是反向对称的，并且颜色分裂甚至发生 在这些地区之间的债券。 当聚焦条件出现时，这些现象消失了。
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公开(公告)号：US4662716A
公开(公告)日：1987-05-05
申请号：US799283
申请日：1985-11-19
申请人： Susumu Matsumura , Takashi Suzuki
发明人： Susumu Matsumura , Takashi Suzuki
CPC分类号： G02B27/108 , G02B27/126 , G03B17/20
摘要： Disclosed is a light splitter in which a number of minute inclined surfaces inclined with respect to the surface of a parallel planar glass is formed. At least part of a light beam having entered the light splitter travels while being totally reflected by said surface and said inclined surfaces and the remainder of the light beam travels without being totally reflected by said inclined surfaces.
摘要翻译： 公开了一种分光器，其中形成相对于平行平面玻璃的表面倾斜的多个微小倾斜面。 进入分光器的光束的至少一部分在被所述表面和所述倾斜表面完全反射的同时行进，并且光束的其余部分行进而不被所述倾斜表面完全反射。
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