Dual color anti-reflection coating
    11.
    发明授权
    Dual color anti-reflection coating 有权
    双色防反射涂层

    公开(公告)号:US06700699B1

    公开(公告)日:2004-03-02

    申请号:US10319266

    申请日:2002-12-13

    Applicant: Lacy G. Cook

    Inventor: Lacy G. Cook

    CPC classification number: G02B1/115

    Abstract: A multi-layer anti-reflection coating for simultaneously coupling electromagnetic radiation of two different wavelengths, &lgr;1 and &lgr;2, where &lgr;1 is greater than &lgr;2, from a first region into a second region is provided. The first region has an index of refraction that is smaller than that of the second region. The anti-reflection coating comprises three layers: (a) a first layer and a third layer that are essentially invisible to &lgr;1 and serve to reduce Fresnel losses for &lgr;2 and (b) a second layer sandwiched between the first and third layers that serves to reduce Fresnel losses for &lgr;1. The thickness and the index of refraction are calculated for each layer.

    Abstract translation: 提供了一种多层抗反射涂层,用于将λ1和λ2两个不同波长的电磁辐射从λ1​​大于λ2的第一区域耦合到第二区域。 第一区域的折射率小于第二区域的折射率。 抗反射涂层包括三层:(a)对λ1基本上不可见的第一层和第三层,用于减少λ2的菲涅尔损耗,和(b)夹在第一层和第三层之间的第二层,其用于 减少λ1的菲涅尔损失。 计算每层的厚度和折射率。

    All-reflective field-switching optical imaging system
    12.
    发明授权
    All-reflective field-switching optical imaging system 有权
    全反射场切换光学成像系统

    公开(公告)号:US6084727A

    公开(公告)日:2000-07-04

    申请号:US301059

    申请日:1999-04-28

    Applicant: Lacy G. Cook

    Inventor: Lacy G. Cook

    CPC classification number: G02B17/0694 G02B15/10

    Abstract: An all-reflective field-switching optical imaging system includes an optical beam coincident with an optical axis and forming a nominal pupil, a pupil-reimaging mirror array spatially separated from the optical axis and having an incident beam with a first pupil the same size as the nominal pupil and an output beam with a second pupil, and a beam diverter mirror array controllably movable between a first position where the beam diverter mirror array does not intercept the optical axis and does not divert the optical beam, and a second position where the beam diverter mirror array intercepts the optical axis and diverts the optical beam. The beam diverter mirror array has a first beam diverter mirror positioned so as to direct the optical beam to the pupil-reimaging mirror array as its incident beam, when the first beam diverter mirror intercepts the optical axis, and a second beam diverter mirror positioned so as to receive the output beam from the pupil-reimaging mirror array and reflect the output beam so as to be coaxial with the optical axis and with the second pupil lying at the pupil plane so as to be concentric and coplanar with a location of the nominal pupil when the beam diverter mirror array is in the first position, when the second beam diverter mirror intercepts the optical axis.

    Abstract translation: 全反射场切换光学成像系统包括与光轴重合并形成标称瞳孔的光束,瞳孔再成像镜阵列在空间上与光轴分离并且具有入射光束,第一瞳孔具有与 标称光瞳和具有第二光瞳的输出光束以及可在第一位置和第二位置之间移动的光束分流镜阵列,其中分束器反射镜阵列不拦截光轴并且不转动光束,第二位置 光束分流镜阵列拦截光轴并转向光束。 光束分流镜阵列具有第一光束分流镜,其定位成当第一光束分流镜拦截光轴时将光束引导到瞳孔再成像镜阵列作为其入射光束,并且第二光束分流镜被定位成 以接收来自瞳孔再成像镜阵列的输出光束并且反射输出光束以便与光轴同轴并且第二光瞳位于光瞳平面处以与标称的位置同心并且共面 当第二光束分流器镜子拦截光轴时,光束分流镜阵列处于第一位置时,光瞳。

    Low cost night vision camera
    13.
    发明授权
    Low cost night vision camera 失效
    低成本夜视摄像机

    公开(公告)号:US5763882A

    公开(公告)日:1998-06-09

    申请号:US751393

    申请日:1996-11-18

    CPC classification number: G02B17/0657 G02B17/0652 H04N3/09 H04N5/33

    Abstract: A low cost infrared camera (1) for night vision. The camera (1) is disposed within a housing (2) having an infrared transmissive window (6) disposed at an input aperture (5) thereof. A compact optical arrangement (10) is disposed within the housing (2) to focus energy from the window (5) onto a focal plane array (20). A chopper disk (19) is positioned between the reflective optical arrangement (10) and the focal plane array (20) to establish a reference level for the array (20) and to facilitate a sequential readout thereof. A signal processing circuit (100) is included for processing the output of the array (20) for display on a standard video screen. Thus, the problems with uncooled detectors are overcome by use of a fast optical system in combination with an uncooled detector. The fast optical system provides a high signal level to the uncooled detector, thereby compensating for losses in collection of thermal radiation. Reflective optical systems can be manufactured inexpensively from plastic or aluminum and reduce the need for expensive infrared materials commonly used in military systems. The combination of the fast optics and uncooled detector provides a truly low cost thermal camera for night vision.

    Abstract translation: 低成本的红外摄像机(1)用于夜视。 相机(1)设置在具有布置在其输入孔(5)处的红外透射窗口(6)的壳体(2)内。 紧凑的光学布置(10)设置在壳体(2)内以将来自窗(5)的能量聚焦到焦平面阵列(20)上。 斩波盘(19)定位在反射光学装置(10)和焦平面阵列(20)之间,以建立阵列(20)的基准电平,并便于其顺序读出。 包括信号处理电路(100),用于处理阵列(20)的输出以在标准视频屏幕上显示。 因此,通过使用快速光学系统与非冷却检测器结合来克服非制冷检测器的问题。 快速光学系统为未冷却的检测器提供高信号电平,由此补偿热辐射的收集损失。 反射光学系统可以廉价地从塑料或铝制造,并且减少对军用系统中通常使用的昂贵的红外材料的需要。 快速光学和非冷却检测器的组合为夜视提供了真正低成本的热像仪。

    Ultra wide field of view scanning surveillance optical system
    15.
    发明授权
    Ultra wide field of view scanning surveillance optical system 失效
    超宽视野扫描监视光学系统

    公开(公告)号:US5347391A

    公开(公告)日:1994-09-13

    申请号:US992398

    申请日:1992-12-18

    CPC classification number: G02B27/642 G02B13/04 G02B13/14 G02B17/045

    Abstract: A refractive inverse telephoto optical system (10) has a first lens doublet (12), a Pechan prism assembly (14) and a second lens doublet (16). The Pechan prism assembly (14) is spaced between the front negative doublet (12) and the rear positive doublet (16). The Pechan prism assembly (14) may be rotated and, as rotation occurs, the associated linear detector array is rotated around within the optical field of view.

    Abstract translation: 折射反相长焦光学系统(10)具有第一透镜双面(12),Pechan棱镜组件(14)和第二透镜双面(16)。 Pechan棱镜组件(14)在前负双面(12)和后正双面(16)间隔开。 Pechan棱镜组件(14)可以旋转,并且当旋转发生时,相关联的线性检测器阵列在光学视场内旋转。

    Fast folded wide angle large reflective unobscured system
    16.
    发明授权
    Fast folded wide angle large reflective unobscured system 失效
    快速折叠广角大反光视野系统

    公开(公告)号:US5331470A

    公开(公告)日:1994-07-19

    申请号:US989279

    申请日:1992-12-11

    Applicant: Lacy G. Cook

    Inventor: Lacy G. Cook

    CPC classification number: G02B23/06 G02B17/0657

    Abstract: A wide angle large reflective unobscured system (10) has a primary (12), secondary (14), tertiary (18) and fold (16) mirror. The primary (12) and secondary (14) mirrors act as a non-reimaging afocal telescope of the Galilean type and relay a virtual entrance pupil to the fold mirror (16) which is positioned at the system aperture stop. The fold mirror (16) directs the energy to the tertiary mirror (18) which acts to direct and focus the energy at a viewing plane. The resulting telescope provides a wide two dimensional field of view which can exceed 20.degree..times.40.degree., and operates at optical speeds about F/1.0.

    Abstract translation: 广角大反射视野系统(10)具有初级(12),次级(14),高(18)和折叠(16)镜。 主(12)和次(14)镜作为伽利略式的非重影无焦望远镜,并将虚拟入射光瞳中继到位于系统孔径光阑处的折叠镜(16)。 折叠镜(16)将能量引导到第三反射镜(18),其用于将能量引导并聚焦在观察平面。 所得到的望远镜提供了可以超过20°x40°的宽二维视场,并以约1/10的光速运行。

    Compact afocal reimaging and image derotation device
    18.
    发明授权
    Compact afocal reimaging and image derotation device 失效
    紧凑的焦点重绘和图像解旋装置

    公开(公告)号:US5078502A

    公开(公告)日:1992-01-07

    申请号:US563124

    申请日:1990-08-06

    Applicant: Lacy G. Cook

    Inventor: Lacy G. Cook

    CPC classification number: G02B17/0657 G02B17/0615 G02B27/642

    Abstract: The present optical system provides an all-reflective afocal reimaging system. A reflective system receives, by means of an entrance aperture, and reflects radiation or light through the system such that the radiation or light is imaged and recollimated as it is reflected through the system. The radiation or light exits at an exit aperture which is an image of the entrance aperture. High quality images of both the collimated scene and reimaged aperture are formed by the optical system. Embodiments are shown by which the optical system can be used as an optical derotation device by the inclusion of two planar mirrors located near the entrance and exit apertures.

    Abstract translation: 本光学系统提供全反射无焦重建成像系统。 反射系统通过入射孔接收并且通过系统反射辐射或光,使得辐射或光在被反射通过系统时被成像和再记录。 辐射或光从作为入射孔的图像的出射孔射出。 通过光学系统形成准直场景和再成像孔径的高品质图像。 示出了通过包括位于入口和出口孔附近的两个平面镜将光学系统用作光学旋转装置的实施例。

    Position encoding holographic spectrometer
    19.
    发明授权
    Position encoding holographic spectrometer 失效
    位置编码全息光谱仪

    公开(公告)号:US4834537A

    公开(公告)日:1989-05-30

    申请号:US136681

    申请日:1987-12-22

    CPC classification number: G01J3/45 G01S3/784

    Abstract: An interferometric spectrometer (20) for determining two-dimensional positional and spectral information of two-dimensional light sources (26) is disclosed. The spectrometer (20) includes a mechanism (28) for splitting a beam source (24) into two beam components (30) and (32). A mechanism (34) and (36) for focusing and centering the pair of beam components (30) and (32) is positioned in the line of projection of the beam components (30) and (32). A mechanism (38) and (40) for reflecting the pair of beam components (30) and (32) is positioned in the line of projection of the two beam components (30) and (32). A detector mechanism (42) for detecting the beam components (30) and (32) is positioned in the line of projection of the two beam components (30) and (32). A mechanism (44) for determining spatial and spectral information of the source (26) is associated with the detector mechanism (42 ). Also disclosed is a method of determining spatial and spectral information of a light source utilizing the spectrometer.

    Abstract translation: 公开了一种用于确定二维光源(26)的二维位置和光谱信息的干涉光谱仪(20)。 光谱仪(20)包括用于将光束源(24)分成两个光束分量(30)和(32)的机构(28)。 用于聚焦和对中所述一对光束部件(30)和(32)的机构(34)和(36)位于所述光束部件(30)和(32)的投影线中。 用于反射一对光束分量(30)和(32)的机构(38)和(40)位于两个光束分量(30)和(32)的投影线中。 用于检测光束分量(30)和(32)的检测器机构(42)位于两个光束分量(30)和(32)的投影线中。 用于确定源(26)的空间和光谱信息的机构(44)与检测器机构(42)相关联。 还公开了一种利用光谱仪确定光源的空间和光谱信息的方法。

    Three mirror anastigmatic optical system
    20.
    发明授权
    Three mirror anastigmatic optical system 失效
    三镜反射光学系统

    公开(公告)号:US4265510A

    公开(公告)日:1981-05-05

    申请号:US39530

    申请日:1979-05-16

    Applicant: Lacy G. Cook

    Inventor: Lacy G. Cook

    CPC classification number: G02B23/06 G02B17/0642

    Abstract: Primary mirror 12, secondary mirror 14 and tertiary mirror 16 form an anastigmatic relayed image forming optical system which is off-axis and decentered in both aperture and field angle. The secondary and tertiary mirrors are tilted and decenter relative to the optical axis of the primary mirror to enhance image quality. Additional advantages include compact packaging, easy accessibility to all components, and improved shielding of unwanted out-of-field radiation.

    Abstract translation: 主镜12,次镜14和副镜16形成了一个非正交的中继图像形成光学系统,该光学系统在孔径和场角方面都是离轴偏心的。 二次和三次反射镜相对于主镜的光轴倾斜和分解,以增强图像质量。 其他优点包括紧凑型封装,易于访问所有组件,并改善对不需要的场外辐射的屏蔽。

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