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    • 1. 发明授权
    • Compact continuous wave wavefront sensor
    • 紧凑型连续波波前传感器
    • US4824243A
    • 1989-04-25
    • US53901
    • 1987-05-26
    • Bryce A. WheelerLacy G. Cook
    • Bryce A. WheelerLacy G. Cook
    • G01J9/00G01M11/02G01J1/20
    • G01J9/00
    • A wavefront sensor (10) for use in determining a phase error of an input beam (16) is disclosed. The wavefront sensor (10) includes mechanisms for obtaining a sample of an input beam (16). A mechanism (18) for splitting the beam (16) into two component beams (46) and (48) is associated with the beam (16). A second mechanism (20) for splitting the two component beams (46) and (48) into four component beams (58), (60), (62) and (64) is associated with the first splitting mechanism (18). A mechanism (26) for detecting the intensity distribution of the four component beams (58), (60), (62) and (64) is associated with the second splitting mechanism (20). A mechanism for determining the phase error of the input beam (16) from the intensity distributions is associated with the detector mechanism (26). Also disclosed is a method for determining the phase error on an input beam (16 ) using the above described wavefront sensor (10).
    • 公开了一种用于确定输入光束(16)的相位误差的波前传感器(10)。 波前传感器(10)包括用于获得输入光束(16)的样本的机构。 用于将梁(16)分成两个分量梁(46)和(48)的机构(18)与梁(16)相关联。 用于将两个分量光束(46)和(48)分成四个分量光束(58),(60),(62)和(64)的第二机构(20)与第一分离机构(18)相关联。 用于检测四个分量光束(58),(60),(62)和(64)的强度分布的机构(26)与第二分割机构(20)相关联。 用于根据强度分布确定输入光束(16)的相位误差的机构与检测器机构(26)相关联。 还公开了一种使用上述波前传感器(10)确定输入光束(16)上的相位误差的方法。
    • 3. 发明授权
    • Contaminant removal from telescope optical elements
    • 从望远镜光学元件去除污染物
    • US5068750A
    • 1991-11-26
    • US600956
    • 1990-10-22
    • Lacy G. CookBryce A. Wheeler
    • Lacy G. CookBryce A. Wheeler
    • B08B7/00G02B27/00
    • B08B7/0042G02B27/0006
    • Illumination, heating and/or damage to baffles (114) and other structures (112) of a telescope (110) during cleaning of its mirrors (116, 118) by a laser beam (128) is avoided by directing the= laser beam from a source (130) outside of the telescope through its entrance aperture (126) and to a reflector (146). The reflector is secured to an already existing telescope shutter (120) so that the beam can be directed on a return path back from the reflector through the entrance aperture and to the outside of the telescope. Preferably, the cleaning occurs by a Nd:GSGG (neodymium and chromium doped gallium garnet crystal) laser (130) after reflection from the reflector. Cleaning is also obtainable by a laser beam generated by a carbon dioxide laser prior to reflection from the reflector.
    • 在通过激光束(128)清洁其反射镜(116,118)期间,对望远镜(110)的折流板(114)和其它结构(112)的照明,加热和/或损坏通过将= 通过其入口孔(126)和反射器(146)在望远镜外部的源(130)。 反射器被固定到已经存在的望远镜遮光板(120)上,使得光束可以从反射器通过入口孔返回到返回路径上并且被引导到望远镜的外部。 优选地,在从反射器反射之后,通过Nd:GSGG(钕和铬掺杂的镓石榴石晶体)激光器(130)进行清洁。 在从反射器反射之前,还可以通过二氧化碳激光器产生的激光束来获得清洁。
    • 4. 发明授权
    • Wide field of view, four-telescope, radial scanning search and acquisition sensor
    • 广视场,四望远镜,径向扫描搜索和采集传感器
    • US07045774B2
    • 2006-05-16
    • US10278609
    • 2002-10-23
    • Bryce A. WheelerLacy G. Cook
    • Bryce A. WheelerLacy G. Cook
    • G01J1/00H04N7/18
    • G02B27/642G01S3/789G02B13/08G02B26/0816
    • A wide field of view imaging system (100). The novel system (100) includes a rotating mirror (18) having two reflective surfaces each surface, respectively, reflecting light from a scene to first and second sensors (10, 12) positioned to receive light from the mirror (18), wherein the first and second sensors (10, 12) each occupy a different portion of the volume surrounding the mirror (18). In the illustrative embodiment, the mirror (18) is a flat, double-sided mirror rotating at a constant velocity about an axis parallel with the surface of the mirror (18). The first and second sensors (10, 12) are all-reflective optical systems, with the first sensor (10) opposite the second sensor (12). In the preferred embodiment, the invention further includes third and fourth opposing sensors (14, 16) clocked 90° from the first and second sensors (10, 12). The first and second sensors (10, 12) cover an outer annulus of the field of view while the mirror (18) rotates a first 90°, and the third and fourth sensors (14, 16) cover an inner annulus while the mirror (18) rotates the next 90°.
    • 广视场成像系统(100)。 新颖系统(100)包括分别具有反射表面的两个反射表面的旋转镜(18),其将来自场景的光反射到定位成接收来自反射镜(18)的光的第一和第二传感器(10,12),其中 第一和第二传感器(10,12)各自占据围绕镜子(18)的体积的不同部分。 在说明性实施例中,反射镜(18)是平行的双面镜,其以围绕平行于镜子(18)的表面的轴线以恒定速度旋转。 第一和第二传感器(10,12)是全反射光学系统,其中第一传感器(10)与第二传感器(12)相对。 在优选实施例中,本发明还包括与第一和第二传感器(10,12)成90°的第三和第四相对的传感器(14,16)。 第一和第二传感器(10,12)在反射镜(18)旋转第一个90°的同时覆盖视场的外部环空,并且第三和第四传感器(14,16)覆盖内环,而反射镜 18)旋转下一个90°。
    • 6. 发明授权
    • Optical system with an articulated mirror unit
    • 具有铰接镜单元的光学系统
    • US5751460A
    • 1998-05-12
    • US540731
    • 1995-10-11
    • John P. HarrellBryce A. Wheeler
    • John P. HarrellBryce A. Wheeler
    • G02B7/00G02B7/18G02B7/182G02B7/198G02B26/08
    • G02B7/1827
    • An articulated optical system has a pair of actuators (42, 44) each of which pivot a head mirror (34) about respective parallel axes (E.sub.1, E.sub.2) to direct the line-of-sight of an optical beam through a window (36) of a vehicle (30) to an optical sensor (38). Of the actuators, a coarse actuator (42) pivots the mirror (34) through substantially the entire desired field of regard of the optical system, and a fine actuator (44) pivots the mirror (34) for fine adjustment, e.g., less than five degrees. The coarse actuator (42) is positioned so that the axis thereof (E.sub.1) is located as close as possible to an edge of the mirror (34), so that the radial distance therebetween is small; therefore, the size of the window (36) is minimized with respect to the diameter (d.sub.b) of the optical beam. The fine actuator (44) is attached to approximately the geometric center of the mirror (34), so that the mirror (34) is statically balanced about the elevation axis (E.sub.2) of the fine actuator (44); therefore, jitter and vibration are substantially eliminated.
    • 铰接式光学系统具有一对致动器(42,44),每一个致动器围绕相应的平行轴线(E1,E2)枢转头部镜子(34),以将光束的视线引导通过窗口(36 )到光学传感器(38)的车辆(30)。 在致动器中,粗略的致动器(42)通过光学系统的大致整个所需的视场来枢转反射镜(34),并且精细致动器(44)使反射镜(34)枢转以进行微调,例如小于 五度。 粗致动器(42)的定位使得其轴线(E1)尽可能靠近反射镜(34)的边缘定位,使得它们之间的径向距离小; 因此,窗口(36)的尺寸相对于光束的直径(db)最小化。 精细致动器(44)附接到近似于反射镜(34)的几何中心,使得反射镜(34)围绕精细致动器(44)的仰角(E2)静态平衡; 因此,基本上消除了抖动和振动。
    • 7. 发明授权
    • Afocal beam expansion apparatus and method
    • 非焦距光束扩张装置及方法
    • US4691999A
    • 1987-09-08
    • US848182
    • 1986-04-04
    • Bryce A. Wheeler
    • Bryce A. Wheeler
    • G02B17/06G02B20060101G02B5/02G02B17/08G02B26/10G02B27/00G02B27/30G02B5/10
    • G02B19/0023G02B19/0033
    • An afocal beam expansion system and method is described which achieves the compactness of prior art refractive systems and yet avoids the use of refractive elements with their accompanying beam scattering, adsorption and temperature sensitivity. A pointing reflector is positioned in the beam path between an expansion reflector and a collimating reflector. The small diameter input beam is directed onto the expansion reflector, which causes it to diverge, reflects off the pointing reflector, and reaches the collimating reflector. The latter element collimates the beam and reflects it back to the pointing reflector, which points the beam along a desired output axis. The expansion, pointing and collimating reflectors are positioned relative to each other such that the beam axis is altered upon each reflection from each element. The pointing reflector may be implemented as a plano mirror, or alternately may comprise a convex reflective surface that cooperates with the collimating mirror to fully collimate the expanded beam. The invention is particularly applicable to airborne laser navigational radar terrain avoidance systems.
    • 描述了实现现有技术的折射系统的紧凑性并且避免使用具有伴随的光束散射,吸附和温度敏感性的折射元件的无焦点光束扩展系统和方法。 指示反射器位于扩张反射器和准直反射器之间的光束路径中。 小直径输入光束被引导到扩展反射器上,这使其发散,从指示反射器反射并到达准直反射器。 后一个元件准直光束并将其反射回指向反射器,该指示反射器将光束沿着期望的输出轴指向。 扩展,指向和准直反射器相对于彼此定位,使得在从每个元件的每次反射时,光束轴线被改变。 指示反射器可以被实现为平面镜,或者可替代地包括凸起的反射表面,其与准直镜配合以完全准直扩展的光束。 本发明特别适用于机载激光导航雷达地形避雷系统。
    • 8. 发明授权
    • Split field wide angle viewing system for vehicles
    • 分体式广角视角系统
    • US6101048A
    • 2000-08-08
    • US81854
    • 1998-05-19
    • Bryce A. Wheeler
    • Bryce A. Wheeler
    • B60R1/10G02B3/08
    • B60R1/10
    • A side-viewing optical system that provides wide-field viewing of image scenes on both sides of a vehicle, particularly in blind areas between the driver's direct peripheral vision and a image scene normally viewed using the rear view mirror. A projected demagnified image from both sides of the vehicle is directed into the driver's eyes from a position straight forward and angled downward so that the forward viewing direction is not blocked while driving the vehicle or requiring driver head motion. The system has left and right side viewers having prisms and Fresnel relay lenses. A roof mirror having left and right mirror surfaces respectively reflect image scenes observed by the side viewers toward the driver. A relay is disposed between the right side viewer and the right mirror surface of the roof mirror. A projector having a Fresnel lens finally projects the image scenes toward the driver for viewing.
    • 一种侧视光学系统,其提供车辆两侧的图像场景的广视场,特别是在驾驶员的直接外围视觉与通常使用后视镜观看的图像场景之间的盲区中。 来自车辆两侧的投影的缩小图像从直立的位置被引导到驾驶员的眼睛中并且向下倾斜,使得在驾驶车辆或要求驾驶员头部运动时前方观察方向不被阻挡。 该系统具有棱镜和菲涅尔继电器镜头的左右观看者。 具有左镜面和右镜面的屋顶镜分别将由侧面观察者观察到的图像场景反射到驾驶员。 继电器设置在右侧观察者和屋顶反射镜的右镜面之间。 具有菲涅尔透镜的投影仪最终将图像场景投射到驾驶员进行观看。
    • 9. 发明授权
    • Thermal imaging system with redundant object space scanning
    • 具有冗余对象空间扫描的热成像系统
    • US3941923A
    • 1976-03-02
    • US456938
    • 1974-04-01
    • Bryce A. Wheeler
    • Bryce A. Wheeler
    • H04N3/09H04N3/00H01J31/49H01J39/12
    • H04N3/09
    • A thermal imaging system having a scan generator for optically scanning a field of view in a two dimensional interlaced object space scan pattern; and for applying received thermal energy to an array of detector elements having a geometrical configuration relative to said scan pattern, such that each detector element views every point in the field of view during each scanning frame. The detector output signals are applied to a light emitting diode array so that each detector element is electrically coupled to a corresponding light emitting diode whose angular location within the diode array corresponds to the angular location of the associated detector within its array; and the resultant visible light is processed through the scan generator to provide a two dimensional interlaced scan reconstruction pattern which is synchronized with the object space scan pattern.
    • 一种具有扫描发生器的热成像系统,用于以二维交错对象空间扫描图案光学扫描视场; 并且用于将接收到的热能施加到具有相对于所述扫描图案的几何构造的检测器元件的阵列,使得每个检测器元件在每个扫描帧期间观察视野中的每个点。 检测器输出信号被施加到发光二极管阵列,使得每个检测器元件电耦合到对应的发光二极管,其二极管阵列内的角位置对应于其阵列内相关检测器的角位置; 并且通过扫描发生器处理所得到的可见光,以提供与对象空间扫描图案同步的二维隔行扫描重建图案。