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公开(公告)号：US20180088313A1
公开(公告)日：2018-03-29
申请号：US15348904
申请日：2016-11-10
发明人： Jia-Sin Jhang , Baina Chen , Zhen-Feng Xie
CPC分类号： G02B25/001 , G02B3/08 , G02B9/10 , G02B25/04
摘要： An ocular optical system includes a first lens element and a second lens element from an eye-side to a display-side in order along an optical axis. The first lens element and the second lens element each include an eye-side surface and a display-side surface. The eye-side surface of the first lens element has a convex portion in a vicinity of the optical axis. The second lens element has negative refracting power. The ocular optical system satisfies 1.5≦|f2/f1| and 250 millimeters/EFL≦10, wherein f2 is the focal length of the second lens element, fl is the focal length of the first lens element, and EFL is the effective focal length of the ocular optical system.
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公开(公告)号：US5877900A
公开(公告)日：1999-03-02
申请号：US815350
申请日：1997-03-10
申请人： Yasuhiro Omura
发明人： Yasuhiro Omura
CPC分类号： G02B25/001
摘要： An eyepiece includes a biconvex lens, a bonded negative meniscus lens including a negative lens with a concave surface which faces the object, and a positive lens having a convex surface which faces an eyepoint. A biconvex lens and a positive lens having a convex surface which faces the object are also provided. Certain prescribed conditional equations are met by the eyepiece.
摘要翻译： 目镜包括双凸透镜，包括具有面向物体的凹面的负透镜的接合阴弯月透镜，以及具有面对眼点的凸面的正透镜。 还提供了双凸透镜和具有面向物体的凸面的正透镜。 目镜满足某些规定的条件方程式。
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公开(公告)号：US5262901A
公开(公告)日：1993-11-16
申请号：US845621
申请日：1992-03-10
申请人： Donald E. Degnan
发明人： Donald E. Degnan
IPC分类号： G02B25/04
CPC分类号： G02B25/04
摘要： A viewing device for installation on a wall or door includes a housing projecting from the front surface of the door and defining a plurality of surveillance ports disposed axially, and non-axially relative to the axis of the housing. By means of a knob extending outwardly from the rear door surface and defining a viewing port axially aligned with the axial surveillance port, the user is able to move a mirror between a first orientation intersecting the housing axis at an acute angle and a second orientation parallel to and spaced from the housing axis. Rotation of the knob relative to the housing causes rotation and pivoting of the mirror so that, when the mirror is in the first orientation, a line of sight is defined at different times from the viewing port through each of the non-axial surveillance ports via the mirror and, when the mirror is in the second orientation, a line of sight is defined from the viewing port directly through the axial surveillance port.
摘要翻译： 用于安装在墙壁或门上的观察装置包括从门的前表面突出并限定多个监视端口的壳体，该监视端口相对于壳体的轴线轴向设置并且不轴向地设置。 通过从后门表面向外延伸并限定与轴向监视端口轴向对齐的观察孔的把手，使用者能够以与锐角相交的第一取向与第二取向平行地移动反射镜 到壳体轴线并与其间隔开。 旋钮相对于壳体的旋转导致反射镜的旋转和枢转，使得当反射镜处于第一方位时，在与观察口不同的时间处通过每个非轴向监视端口经过 镜子，当镜子处于第二方向时，从观察口直接通过轴向监视口定义视线。
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34.发明授权Door viewer including inner tube encasing object lenses and ocular lens and including a rubberized flexible hood 失效门查看器包括内管包装物镜和眼镜，并包括橡胶柔性罩
公开(公告)号：US5221992A
公开(公告)日：1993-06-22
申请号：US829432
申请日：1992-02-03
申请人： Ki K. Park
发明人： Ki K. Park
IPC分类号： G02B25/04
CPC分类号： G02B25/04
摘要： A doorscope comprising an inner tube which encases two sets of lenses, the one set being the object lens set, encased in the outer, or external portion of the doorscope, and composed of two opposed and adjacent concave lenses, and the other lens being an ocular lens of a convex design, and encased in the internal portion of the inner tube. An outer tube is screwed onto the inner tube, and, having a retaining flange on its outer end, holds the doorscope firmly against the outer surface of the door. An adjusting tube, having an enlarged diameter, milled surface area, is screwed onto the inner, or interior end of the inner tube, and is tightened against the inner surface of the door, using the milled gripping surface, thereby requiring no tools To prevent danger to the viewer when placing their eye against the doorscope, a rubberized hood is affixed onto the inwardly protruding end of the adjusting tube, thereby allowing the viewer to place their eye against the doorscope without danger to the eye.
摘要翻译： 一种门镜，包括一个包围两组透镜的内管，一组是物镜组，包围在门镜的外部或外部，由两个相对相邻的凹透镜组成，另一个透镜是 具有凸起设计的眼镜片，并且被包封在内管的内部。 将外管拧到内管上，在其外端具有保持凸缘，将门罩牢固地保持在门的外表面上。 具有扩大的直径铣削表面积的调节管被拧入内管的内部或内部端部，并且使用碾磨的抓握表面紧固在门的内表面上，从而不需要工具来防止 当将眼睛放置在门罩上时，观察者有危险，橡胶罩被固定在调节管的向内突出的端部上，从而允许观察者将眼睛放置在门罩上，而不会对眼睛造成危险。
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公开(公告)号：US4932765A
公开(公告)日：1990-06-12
申请号：US111931
申请日：1987-10-23
CPC分类号： G02B27/0101 , G02B25/04 , G02B27/01 , G02B2027/0169
摘要： A field of vision enhancement device having a mounting on an article of headgear or other structure adjacent to the user, adjustable with respect to a straight ahead, normal line of sight including optics for displaying at least one field of optical information either normally occluded or not readily discernable with binocular vision whereby the field of vision is enhanced. The device may include additional graphic data presented to the user and superimposed on the enhanced peripheral view.
摘要翻译： 一种视觉增强装置，其具有安装在与用户相邻的头带或其他结构的物品上，相对于直线前进可调节，法线包括用于显示至少一个通常被遮挡的光信息的光学系统的光学元件 易于识别双目视力，视野增强。 该设备可以包括呈现给用户的附加图形数据并叠加在增强的外围视图上。
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公开(公告)号：US4892399A
公开(公告)日：1990-01-09
申请号：US255069
申请日：1988-10-07
申请人： Chul H. Ahn
发明人： Chul H. Ahn
摘要： A door viewer includes two prisms of rectangular isosceles triangle shape in cross section whose hypotenuse surfaces abut horizontally, a front convex lens, an intermediate plano-convex lens and a plano-convex eyepiece lens. The front convex lens has a front concave surface and a rear convex surface to correct chromatic aberration. The convex surfaces of the intermediate and eyepiece lenses are positioned face to face with each other to correct barrel distortion. The view casts an image onto a ground glass screen formed on or provided abutting the eyepiece lens.
摘要翻译： 门观赏者包括横截面为矩形等腰三角形的两个棱镜，其斜边表面邻接，前凸透镜，中间平凸透镜和平凸目镜。 前凸透镜具有前凹面和后凸面，以校正色差。 中间和目镜透镜的凸面彼此面对面地定位，以校正桶形失真。 该视图将图像投影到形成在邻接目镜上或设置在目镜上的玻璃幕上。
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公开(公告)号：US4747675A
公开(公告)日：1988-05-31
申请号：US056060
申请日：1987-06-01
申请人： Albert Nagler
发明人： Albert Nagler
CPC分类号： G02B25/001
摘要： Ultra wide-angle eyepieces with relatively long focal lengths and minimal spherical aberration of the exit pupil and field curvature. The eyepieces use six elements in a positive power lens group and two elements in a negative power lens group.
摘要翻译： 超广角目镜具有相对较长的焦距和出射瞳孔和场曲率的最小球面像差。 目镜在正功率透镜组中使用六个元件，在负功率透镜组中使用两个元件。
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公开(公告)号：US4525035A
公开(公告)日：1985-06-25
申请号：US568407
申请日：1984-01-05
申请人： Albert Nagler
发明人： Albert Nagler
CPC分类号： G02B25/001
摘要： A wide angle eyepiece having reduced astigmatism at the edge of the field and comprising a doublet, a singlet, a singlet, and a doublet, wherein the doublets have negative power.
摘要翻译： 具有在场边缘处具有减小的散光并包括双峰，单峰，单峰和双峰的广角目镜，其中双峰具有负功率。
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公开(公告)号：US4431277A
公开(公告)日：1984-02-14
申请号：US318058
申请日：1981-11-04
摘要： A viewing device for mounting in a wall or door frame to provide a view of the exterior of the building to an occupant of the building comprises a tubular housing and a pair of reflectors mounted by arms at one axial end of the housing so that they extend axially outward from the housing. The device further includes a transparent view housing which encloses the reflectors and prevents rearrangement of the reflectors while at the same time permitting a clear view of the area directly in front of the housing. The interior end of the tubular housing is enclosed by an eyepiece which can preferably be a magnifying type lens to increase the size of the images reflected from the reflectors and perceived through the transparent view housing.
摘要翻译： 一种用于安装在墙壁或门框中以用于向建筑物的乘员提供建筑物外观的视图的观察装置包括管状壳体和一对反射器，其通过臂在壳体的一个轴向端部处安装，使得它们延伸 从外壳轴向向外。 该装置还包括透明视图外壳，其包围反射器并防止反射器的重新布置，同时允许直接在外壳前面的区域的清晰视图。 管状壳体的内端由目镜包围，该目镜可以优选地是放大型透镜，以增加从反射器反射并通过透明视图外壳感知的图像的尺寸。
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公开(公告)号：US4226508A
公开(公告)日：1980-10-07
申请号：US11116
申请日：1979-02-12
CPC分类号： G02B25/04 , G02B27/022
摘要： A fishing and viewing device for ice fishing which permits an ice fisherman to view his bait and line through a hole cut in the ice. The device is positioned above the hole in the ice while a cylindrical insert is positioned in the ice fishing hole in the ice. The flanged upper end of the cylindrical tube can be readily connected to and disconnected from the upper viewing and angling access unit.
摘要翻译： 钓鱼和钓鱼的观察设备，允许冰渔夫通过在冰中切开的洞看到他的诱饵和线条。 该装置位于冰中的孔的上方，而圆柱形插入件位于冰中的冰钓孔中。 圆柱形管的带凸缘的上端可以容易地连接到上部观察和垂直存取单元并与其分离。
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