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1. 发明授权

US4449817A Celestial navigator 失效
标题翻译：天体导航仪
公开(公告)号：US4449817A
公开(公告)日：1984-05-22
申请号：US239504
申请日：1981-03-02
申请人： William L. Abler
发明人： William L. Abler
IPC分类号： G01C1/08 , G01C1/00 , G01C1/14 , G02B23/04
CPC分类号： G01C1/08
摘要： Celestial navigational instrument and method of determination of local latitude and local hour angle of Aries by a single sighting on the night sky. Greenwich hour angle of Aries and latitude are obtained by simple reference to the instrument's scales and to a watch and Nautical Almanac; sight reduction tables, plotting boards and charts are not required. The instrument comprises a sky assembly and a horizon assembly. The sky assembly includes a closed central axial tube on which are rotatably mounted a combined periscope/telescope tube for sighting a first star and a periscope tube for sighting a second star, the siderial hour angular positions of both of which are set with respect to a single sky wheel and the polar distances of each periscope turret with respect to protractor scales. The horizon assembly comprises a periscope/telescope assemby mounted on the central axial tube and indexed to a horizon wheel and protractor scale to read the local hour angle of Aries and local latitude. A beam splitter, mirrors and optical lens elements are mounted to permit simultaneous observation of two stars and the horizon.
摘要翻译：天文导航仪器和方法，通过在夜空中的单目视力确定白羊座的当地纬度和当地小时角。白羊座和纬度的格林威治时间角通过简单参考仪器的尺度和手表和航海年鉴获得; 不需要减光台，绘图板和图表。仪器包括天空组件和水平仪组件。天空组件包括封闭的中心轴向管，可旋转地安装有组合潜望镜/望远镜管，用于瞄准第一星形和潜望镜管，用于瞄准第二星形，其两者的棱镜小时角位置相对于单天空轮和每个潜望镜炮塔相对于量角器的极距。地平线组件包括安装在中心轴向管上的潜望镜/望远镜组件，并分配到水平轮和量角器刻度，以读取白羊座和当地纬度的当地小时角。安装分束器，镜子和光学透镜元件，以便同时观察两颗恒星和地平线。

2. 发明授权

US4421407A Image combining sextant or the like 失效
标题翻译：图像组合六分仪等
公开(公告)号：US4421407A
公开(公告)日：1983-12-20
申请号：US256464
申请日：1981-04-22
申请人： Angus MacDonald
发明人： Angus MacDonald
IPC分类号： G01C1/08
CPC分类号： G01C1/08
摘要： An improved optical measuring instrument having an image combining mirror which reflects part of the light from one source and transmits part of the light from another source and superimposes such reflected and transmitted light over the entire surface of the mirror is disclosed. In the preferred embodiment an improved sextant is disclosed using the image combining mirror. Sextants are double reflecting optical devices which are generally used to measure the angle between a celestial object, such as the sun, the moon, or a star, and the horizon. This measurement is used primarily in navigation for determining the user's location at sea. Prior sextants split the viewing area of the horizon mirror into two fields of view: one-half horizon and one-half celestial object. The improved sextant uses a horizon mirror which combines and overlaps (superimposes) the horizon and celestial images over the entire viewing area. This is preferably accomplished by the use of a spectrally selective dielectric beamsplitter as the horizon mirror, such mirror mainly transmitting light in one spectral region and substantially reflecting light in another spectral region. The result is a horizon mirror which both splits and converges the horizon and celestial images resulting in an enlarged field of view of both the horizon and the celestial object.
摘要翻译：公开了一种改进的光学测量仪器，其具有图像组合反射镜，其反射来自一个光源的光的一部分并且透射来自另一光源的部分光并将该反射和透射光叠加在反射镜的整个表面上。在优选实施例中，使用图像合成镜公开了改进的六分仪。 Sextant是双反射光学装置，其通常用于测量诸如太阳，月亮或星星之间的天体物体与地平线之间的角度。该测量主要用于确定用户在海上的位置的导航。先前的六分仪将水平镜的观看区域分成两个视场：二分之一半天体和半天体。改进的六分仪使用地平线反射镜，其在整个观看区域上结合并重叠（叠加）地平线和天体图像。这优选地通过使用光谱选择性介质分光器作为水平镜来实现，这种镜主要在一个光谱区域中透射光并且基本上反射另一个光谱区域中的光。结果是水平镜，它们分裂和收敛地平线和天体图像，导致地平线和天体物体的放大视场。

3. 发明授权

US4197653A Electronic sextant 失效
标题翻译：电子六分仪
公开(公告)号：US4197653A
公开(公告)日：1980-04-15
申请号：US864354
申请日：1977-12-27
申请人： Darryl E. Laxo
发明人： Darryl E. Laxo
IPC分类号： G01C1/08 , G01D5/12 , G01C17/34
CPC分类号： G01C1/08 , G01D5/12
摘要： An apparatus to be mounted on conventional sextants permitting faster, more accurate readings with memory storage capability. Alternative transducing means are attached to a sextant arm and generate electronic signals corresponding to amount of rotation of the arm. An electronic timing circuit is coupled to the angle signal generator such that both angle and time may be displayed instantaneously in digital format or stored for later display. Multiple memory circuits allow multiple sextant readings and times to be consecutively taken and stored without requiring separate acts of manual data recordation by the operator after each sighting.
摘要翻译：安装在常规六分仪上的装置，允许更快，更精确的读数和存储器存储能力。替代传感装置连接到六分仪臂并产生对应于臂的旋转量的电子信号。电子定时电路耦合到角度信号发生器，使得角度和时间可以以数字格式瞬时显示或存储以供稍后显示。多个存储器电路允许连续地采集和存储多个六分仪读数和时间，而不需要操作者在每次瞄准之后单独执行手动数据记录。

4. 发明授权

US2357390A Opticahnstrtjment 失效
公开(公告)号：US2357390A
公开(公告)日：1944-09-05
申请号：US2357390D
CPC分类号： G01C1/08 , G01C1/00

5. 发明授权

US2155436A Optical instrumentality provided with a variable light filter 失效
标题翻译：光学仪器带有可变光滤波器
公开(公告)号：US2155436A
公开(公告)日：1939-04-25
申请号：US12793937
申请日：1937-02-26
申请人： MCNALLY JAMES A
发明人： MCNALLY JAMES A
CPC分类号： G01C1/08 , G02B5/3025 , G02B27/281

6. 发明授权

US1842837A Altitude reading recorder 失效
标题翻译：高度记录仪
公开(公告)号：US1842837A
公开(公告)日：1932-01-26
申请号：US30437628
申请日：1928-09-06
申请人： PIERCE MAURICE R
发明人： PIERCE MAURICE R
CPC分类号： G01C1/08 , G01C1/04

7. 发明授权

US1583950A Quadrant 失效
标题翻译：象限
公开(公告)号：US1583950A
公开(公告)日：1926-05-11
申请号：US28640219
申请日：1919-03-31
申请人： NIPPON YUSEN CO LTD
发明人： TOSHIICHI ARIMITSU
IPC分类号： G01C1/08
CPC分类号： G01C1/08

8. 发明授权

US19062A of brooklyn 失效
公开(公告)号：US19062A
公开(公告)日：1858-01-05
申请号：US19062D
CPC分类号： G01C1/08

9. 发明授权

US4707926A Automatic sextant 失效
公开(公告)号：US4707926A
公开(公告)日：1987-11-24
申请号：US590473
申请日：1984-03-16
申请人： John A. Decker, Jr.
发明人： John A. Decker, Jr.
IPC分类号： G01C1/08
CPC分类号： G01C1/08
摘要： A sextant for indicating the angular separation between two objects, including two members interconnected at a pivot point, means for adjusting the angle between the members to be indicative of the angular separation between the objects, the means for adjusting including coarse and fine adjustment means, and a pair of encoders for converting the respective positions of the coarse and fine adjustment means to signals which are together indicative of the angular separation. In other aspects, there is a single encoder having a track on the sextant arc and a sensor on the tangent arm; and an indicator tells the user when the sextant has been set to the prestored altitudes of reference celestial bodies.

10. 发明授权

US4162124A Passive optical rangefinder-sextant 失效
标题翻译：被动光学测距仪 - 六分仪
公开(公告)号：US4162124A
公开(公告)日：1979-07-24
申请号：US882285
申请日：1978-02-28
申请人： Sidney Feldman , George G. Barton, Jr.
发明人： Sidney Feldman , George G. Barton, Jr.
IPC分类号： G01C1/08 , G01C3/02 , G01C3/10 , G01C3/08 , G01B11/26 , G01C1/00
CPC分类号： G01C3/02 , G01C1/08 , G01C3/10
摘要： A passive opto-electric rangefinder with remotely controllable index mirr independently rotatable about normal axes, each axis perpendicular to the line-of-sight.
摘要翻译：一个无源光电测距仪，可远程控制的分度镜可以绕垂直轴独立旋转，每个轴垂直于视线。

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