Optical filtering device
    31.
    发明授权
    Optical filtering device 失效
    光学过滤装置

    公开(公告)号:US06204941B1

    公开(公告)日:2001-03-20

    申请号:US08745178

    申请日:1996-11-07

    Abstract: An optical filtering device incorporates first and second prisms, the latter prism counteracting the angular dispersion of the former prism. A spatial light modulator provides a positionally variable optical stop located to block radiation within a wavelength interval and received from a location within a scene. Unobscured radiation from that and other scene locations passes to a camera, which produces an image on a display. Opaque pixels in the stop are positioned to block unwanted light sources. The invention attenuates potentially dazzling monochromatic radiation while retaining radiation at other wavelengths for imaging purposes.

    Abstract translation: 光学滤波装置包括第一和第二棱镜,后者的棱镜抵消前棱镜的角度色散。 空间光调制器提供位置可变的光学停止器,其位于阻挡波长间隔内的辐射并且从场景内的位置接收。 来自那个和其他场景位置的未遮挡的辐射传递到相机,其在显示器上产生图像。 挡块上的不透明像素被定位成阻挡不需要的光源。 本发明减少了潜在的耀眼的单色辐射,同时保持在其他波长的辐射用于成像目的。

    Six-degree-of-freedom error correction method and apparatus

    公开(公告)号:US20240102860A1

    公开(公告)日:2024-03-28

    申请号:US18460721

    申请日:2023-09-05

    CPC classification number: G01J3/16

    Abstract: An apparatus includes a six-axis correction stage, an auto-collimation measurement device, a light splitter, a telecentric image measurement device, and a controller. The six-axis correction stage carries a device under test; the auto-collimation measurement device is arranged above the six-axis correction stage along a measurement optical axis; the light splitter is arranged on the measurement optical axis and is interposed between the six-axis correction stage and the auto-collimation measurement device. A method controls the six-axis correction stage to correct rotation errors in at least two degrees of freedom of the device under test according to a measurement result of the auto-collimation measurement device, and controls the six-axis correction stage to correct translation and yaw errors in at least three degrees of freedom of the device under test according to a measurement result of the telecentric image measurement device by means of the controller.

    Grism
    38.
    发明授权
    Grism 失效
    格里姆

    公开(公告)号:US06927914B2

    公开(公告)日:2005-08-09

    申请号:US10457408

    申请日:2003-06-10

    Abstract: In order to achieve highly dispersive spectrometry in wide wavelength with the use of a single grism, but not a plurality of grisms, the grism is composed of a prism the vertex angle of which can be varied and a volume phase holographic (VPH) grating. More specifically, the grism comprises a prism the vertex angle of which can be varied; and a VPH grating being a diffraction grating and disposed substantially orthogonal with respect to a side including the vertex angle of the prism; the VPH grating being rotated around an axis being substantially orthogonal to the side of the prism, whereby a slope angle defined by the VPH grating and a predetermined plane is varied.

    Abstract translation: 为了通过使用单个棱镜而不是多个棱镜来实现宽波长的高色散光谱,棱镜由顶角可以变化的棱镜和体积相位全息(VPH)光栅组成。 更具体地,棱镜包括其顶角可以变化的棱镜; 以及VPH光栅,其是衍射光栅,并且相对于包括所述棱镜的顶角的一侧大致正交地布置; VPH光栅围绕基本上正交于棱镜的一侧的轴线旋转,由此由VPH光栅和预定平面限定的斜角变化。

    Grism
    39.
    发明申请
    Grism 失效
    格里姆

    公开(公告)号:US20040070853A1

    公开(公告)日:2004-04-15

    申请号:US10457408

    申请日:2003-06-10

    Abstract: In order to achieve highly dispersive spectrometry in wide wavelength with the use of a single grism, but not a plurality of grisms, the grism is composed of a prism the vertex angle of which can be varied and a volume phase holographic (VPH) grating. More specifically, the grism comprises a prism the vertex angle of which can be varied; and a VPH grating being a diffraction grating and disposed substantially orthogonal with respect to a side including the vertex angle of the prism; the VPH grating being rotated around an axis being substantially orthogonal to the side of the prism, whereby a slope angle defined by the VPH grating and a predetermined plane is varied.

    Abstract translation: 为了通过使用单个棱镜而不是多个棱镜来实现宽波长的高色散光谱,棱镜由顶角可以变化的棱镜和体积相位全息(VPH)光栅组成。 更具体地,棱镜包括其顶角可以变化的棱镜; 以及VPH光栅,其是衍射光栅,并且相对于包括所述棱镜的顶角的一侧大致正交地布置; VPH光栅围绕基本上正交于棱镜的一侧的轴线旋转,由此由VPH光栅和预定平面限定的斜角变化。

    Apparatus for carrying out spectral analysis of an optical light source
using image detection and separation of spectral orders
    40.
    发明授权
    Apparatus for carrying out spectral analysis of an optical light source using image detection and separation of spectral orders 失效
    用于使用图像检测和频谱分离的光源进行光学光谱的光谱分析的装置

    公开(公告)号:US5859702A

    公开(公告)日:1999-01-12

    申请号:US737339

    申请日:1997-01-21

    Applicant: Peter Lindblom

    Inventor: Peter Lindblom

    Abstract: An apparatus for carrying out spectral analysis of optical radiation emitted from a light source (11) comprises a spectral detector (1) having an entrance aperture (10) for the radiation from thelight source (11), a first imaging optical component (11), a first imaging optical component (12), a diffraction grating (14) for wavelength dispersion of the radiation, order sorting means (131, 132) for separation of the spectral orders of the diffraction grating (14), a second imaging optical component (15), and a detecting unit (16) for registration of the light source spectrum divided into order spectra through the order sorting means (131, 132). The order sorting means (131, 132) comprise at least two refractive optical components manufactured from different material. The two refractive optical components (131 and 132) together with the diffraction grating (14) and the imaging optical components (12 and 15) produce a substantially uniform distribution of the order spectra on the detector unit (16). Favourably the order sorting means (131, 132), the diffraction grating (14) and the imaging optical components (12, 15) also co-act to produce a substantially stigmatic image of the entrance aperture (10) in at least one point on the detector unit (16).

    Abstract translation: PCT No.PCT / SE95 / 00543 Sec。 371日期1997年1月21日 102(e)日期1997年1月21日PCT提交1995年5月15日PCT公布。 公开号WO95 / 31703 日期:1995年11月23日一种用于进行从光源(11)发射的光辐射的光谱分析的装置包括具有用于来自光源(11)的辐射的入射孔(10)的光谱检测器(1),第一成像 光学部件(11),第一成像光学部件(12),用于辐射的波长色散的衍射光栅(14),用于分离衍射光栅(14)的光谱级的分级装置(131,132) 第二成像光学部件(15),以及用于通过所述订单分选装置(131,132)对分配成顺序光谱的光源光谱进行配准的检测单元(16)。 订单分拣装置(131,132)包括由不同材料制成的至少两个折射光学部件。 两个折射光学部件(131和132)与衍射光栅(14)和成像光学部件(12和15)一起产生在检测器单元(16)上的顺序光谱的基本上均匀的分布。 有利的是,顺序分选装置(131,132),衍射光栅(14)和成像光学部件(12,15)也共同作用,以在至少一个点上产生入射孔径(10)的基本上眩目的图像, 检测器单元(16)。

Patent Agency Ranking