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    AMBIENT-TO-COLD FOCUS AND ALIGNMENT OF CRYOGENIC SPACE SENSORS USING UNCOOLED AUXILLARY DETECTORS
    11.
    发明申请
    AMBIENT-TO-COLD FOCUS AND ALIGNMENT OF CRYOGENIC SPACE SENSORS USING UNCOOLED AUXILLARY DETECTORS 审中-公开
    使用不可见的辅助探测器的低温空间传感器的聚焦和对准

    公开(公告)号：WO2003106944A2

    公开(公告)日：2003-12-24

    申请号：PCT/US2003/018978

    申请日：2003-06-13

    Applicant: RAYTHEON COMPANY

    Inventor： PATIENCE, Roy A. ,  CUNNINGHAM, Larry L. ,  KROLL, Ray D. ,  COOK, Lacy G.

    IPC: G01J5/00

    CPC classification number: G01J5/061 ,  G01J5/02 ,  G01J5/0215 ,  G01J5/08 ,  G01J5/084 ,  G01J5/0846 ,  G01J5/089 ,  G01J2005/0077

    Abstract: A system and method for focusing infrared detectors operable at cryogenic temperatures. The invention includes a sensor (10) for detecting electromagnetic energy comprising a first detector (14) operable over a first temperature range and a predetermined number of auxiliary detectors (12) operable over a second temperature range, wherein the auxiliary detectors (12) are adjacent to and in the same optical plane as the first detector (14). In the illustrative embodiment, the energy is infrared or visible light, the first temperature range is a range of cryogenic temperatures, and the second temperature range is a range of ambient temperatures. The first detector (14) is a focal plane array and the auxiliary detectors (12) are uncooled detector arrays. In the preferred embodiment, the focal plane array (14) and the uncooled detectors (12) are disposed on a common substrate. In accordance with the teachings of the present invention, the novel sensor (10) can be used to focus an optical system at cryogenic temperatures. The inventive method includes illuminating energy onto the sensor (10) through the optical system at ambient temperatures and then adjusting the position of the sensor (10) until maximum illumination is received by the auxiliary detectors (12). This determines the location of the focal plane of the system at ambient temperatures. The location of the focal plane at cryogenic temperatures can then be calculated using the location of the focal plane at ambient and a model of the thermal characteristics of the system.

    Abstract translation: 用于聚焦红外探测器的系统和方法，可在低温下工作。 本发明包括用于检测电磁能的传感器（10），其包括在第一温度范围上可操作的第一检测器（14）和在第二温度范围上可操作的预定数量的辅助检测器（12），其中辅助检测器（12） 邻近并在与第一检测器（14）相同的光学平面中。 在说明性实施例中，能量是红外线或可见光，第一温度范围是低温温度范围，第二温度范围是环境温度范围。 第一检测器（14）是焦平面阵列，辅助检测器（12）是非冷却检测器阵列。 在优选实施例中，焦平面阵列（14）和未冷却的检测器（12）设置在共同的基板上。 根据本发明的教导，新型传感器（10）可用于将光学系统聚焦在低温下。 本发明的方法包括在环境温度下通过光学系统将能量照射到传感器（10）上，然后调整传感器（10）的位置，直到辅助检测器（12）接收到最大照明。 这决定了系统在环境温度下的焦平面的位置。 然后可以使用焦平面在环境下的位置和系统的热特性的模型来计算焦平面在低温温度下的位置。

    OPTICAL FORMS FOR MULTI-CHANNEL DOUBLE-PASS DISPERSIVE SPECTROMETERS
    12.
    发明公开
    OPTICAL FORMS FOR MULTI-CHANNEL DOUBLE-PASS DISPERSIVE SPECTROMETERS 审中-公开
    多通道双通色散光谱仪的光学形式

    公开(公告)号：EP3283862A1

    公开(公告)日：2018-02-21

    申请号：EP16705876.7

    申请日：2016-02-01

    Applicant: Raytheon Company

    Inventor： COOK, Lacy G.

    IPC: G01J3/18 ,  G01J3/02

    CPC classification number: G01J3/2823 ,  G01J3/0208 ,  G01J3/0286 ,  G01J3/0294 ,  G01J3/18

    Abstract: A multi-channel double-pass imaging spectrometer based on a reimaging or relayed all-reflective optical form, such as a four-mirror anastigmat (4MA) or five-mirror anastigmat (5MA). In one example, such a spectrometer includes a slit through which incident electromagnetic radiation enters the spectrometer, an imaging detector positioned at an image plane of the spectrometer co-located with the slit, and double-pass all-reflective reimaging optics configured to receive the electromagnetic radiation from the slit and to output a collimated beam of the electromagnetic radiation, and further configured to produce a reimaged pupil positioned between the double-pass all-reflective reimaging optics and the image plane. The spectrometer further includes at least one dispersive element configured to spectrally disperse the infrared electromagnetic radiation in each channel and being oriented to direct the dispersed output through the double-pass all-reflective reimaging optics to the image plane.

    OPTICAL FORMS FOR MULTI-CHANNEL DOUBLE-PASS DISPERSIVE SPECTROMETERS
    13.
    发明公开
    OPTICAL FORMS FOR MULTI-CHANNEL DOUBLE-PASS DISPERSIVE SPECTROMETERS 审中-公开

    公开(公告)号：EP4012361A3

    公开(公告)日：2022-08-17

    申请号：EP21208888.4

    申请日：2016-02-01

    Applicant: Raytheon Company

    Inventor： COOK, Lacy G.

    IPC: G01J3/18 ,  G01J3/02 ,  G01J3/28

    Abstract: A multi-channel double-pass imaging spectrometer based on a reimaging or relayed all-reflective optical form, such as a four-mirror anastigmat (4MA) or five-mirror anastigmat (5MA). In one example, such a spectrometer includes a slit through which incident electromagnetic radiation enters the spectrometer, an imaging detector positioned at an image plane of the spectrometer co-located with the slit, and double-pass all-reflective reimaging optics configured to receive the electromagnetic radiation from the slit and to output a collimated beam of the electromagnetic radiation, and further configured to produce a reimaged pupil positioned between the double-pass all-reflective reimaging optics and the image plane. The spectrometer further includes at least one dispersive element configured to spectrally disperse the infrared electromagnetic radiation in each channel and being oriented to direct the dispersed output through the double-pass all-reflective reimaging optics to the image plane.

    OPTICAL FORMS FOR MULTI-CHANNEL DOUBLE-PASS DISPERSIVE SPECTROMETERS
    15.
    发明公开
    OPTICAL FORMS FOR MULTI-CHANNEL DOUBLE-PASS DISPERSIVE SPECTROMETERS 审中-公开

    公开(公告)号：EP4012361A2

    公开(公告)日：2022-06-15

    申请号：EP21208888.4

    申请日：2016-02-01

    Applicant: Raytheon Company

    Inventor： COOK, Lacy G.

    IPC: G01J3/18 ,  G01J3/02

    Abstract: A multi-channel double-pass imaging spectrometer based on a reimaging or relayed all-reflective optical form, such as a four-mirror anastigmat (4MA) or five-mirror anastigmat (5MA). In one example, such a spectrometer includes a slit through which incident electromagnetic radiation enters the spectrometer, an imaging detector positioned at an image plane of the spectrometer co-located with the slit, and double-pass all-reflective reimaging optics configured to receive the electromagnetic radiation from the slit and to output a collimated beam of the electromagnetic radiation, and further configured to produce a reimaged pupil positioned between the double-pass all-reflective reimaging optics and the image plane. The spectrometer further includes at least one dispersive element configured to spectrally disperse the infrared electromagnetic radiation in each channel and being oriented to direct the dispersed output through the double-pass all-reflective reimaging optics to the image plane.

    MULTIPLE ACCESS POINT LASER COMMUNICATIONS TERMINAL
    18.
    发明授权
    MULTIPLE ACCESS POINT LASER COMMUNICATIONS TERMINAL 审中-公开

    公开(公告)号：EP2957049B1

    公开(公告)日：2018-12-26

    申请号：EP13811279.2

    申请日：2013-11-21

    Applicant: Raytheon Company

    Inventor： COOK, Lacy G.

    IPC: H04B10/112 ,  H04B10/118

    CPC classification number: H04B10/118 ,  G02B17/0636 ,  G02B27/644 ,  H04B10/1127

    Abstract: A laser communications terminal configured for simultaneous two-way stabilized communications links to multiple ground sites. One example of such a laser communications terminal includes a plurality of laser channels, each including a channel transceiver configured to transmit and receive an optical signal, an afocal telescope optically coupled to each of the channel transceivers, a coelostat mirror pair optically coupled to the afocal telescope, and a plurality of beam steering mirrors, at least one beam steering mirror associated with each channel of the plurality of laser channels and configured to independently steer the corresponding optical signal within a field of view of the afocal telescope.

    AUTO-ALIGNMENT SYSTEM FOR HIGH PRECISION MASTED HEAD MIRROR
    19.
    发明公开
    AUTO-ALIGNMENT SYSTEM FOR HIGH PRECISION MASTED HEAD MIRROR 审中-公开
    自校准系统与MAST高精度前镜

    公开(公告)号：EP3017266A1

    公开(公告)日：2016-05-11

    申请号：EP14733751.3

    申请日：2014-04-23

    Applicant: Raytheon Company

    Inventor： SHIMON, Philip T. ,  COOK, Lacy G. ,  ROBINSON, Brendan H.

    IPC: F41G3/06 ,  G02B23/08 ,  G02B27/64

    Abstract: According to an embodiment of the disclosure, an optical sensor system comprises a mast, a mast mirror, a navigation unit, one or more faceted mirrors, and at least two beam-steering mirrors. The mast is elevated from a vehicle. The mast mirror reflects signals either to or from object space along a line of sight. The navigation unit determines a location and attitude of the mast mirror. The one or more faceted mirrors reflect an error sensing beam to reveal a flexure of the mast mirror. The at least two beam-steering mirrors prevent the line of sight for the signals reflected off the mast mirror from walking off the mast mirror by adjusting an angle and translation of the signals reflected off the mast mirror.

    AMBIENT-TO-COLD FOCUS AND ALIGNMENT OF CRYOGENIC SPACE SENSORS USING UNCOOLED AUXILLARY DETECTORS
    20.
    发明授权
    AMBIENT-TO-COLD FOCUS AND ALIGNMENT OF CRYOGENIC SPACE SENSORS USING UNCOOLED AUXILLARY DETECTORS 有权
    在CRYO环境焦点和对准传感器BENÜTZEND他们与非制冷辅助检测器的帮助下冷却

    公开(公告)号：EP1483555B1

    公开(公告)日：2009-08-05

    申请号：EP03760402.2

    申请日：2003-06-13

    Applicant: RAYTHEON COMPANY

    Inventor： PATIENCE, Roy A. ,  CUNNINGHAM, Larry L. ,  KROLL, Ray D. ,  COOK, Lacy G.

    IPC: G01J5/00

    CPC classification number: G01J5/061 ,  G01J5/02 ,  G01J5/0215 ,  G01J5/08 ,  G01J5/084 ,  G01J5/0846 ,  G01J5/089 ,  G01J2005/0077

    Abstract: A system and method for focusing infrared detectors operable at cryogenic temperatures. The invention includes a sensor (10) for detecting electromagnetic energy comprising a first detector (14) operable over a first temperature range and a predetermined number of auxiliary detectors (12) operable over a second temperature range, wherein the auxiliary detectors (12) are adjacent to and in the same optical plane as the first detector (14). In the illustrative embodiment, the energy is infrared or visible light, the first temperature range is a range of cryogenic temperatures, and the second temperature range is a range of ambient temperatures. The first detector (14) is a focal plane array and the auxiliary detectors (12) are uncooled detector arrays. In the preferred embodiment, the focal plane array (14) and the uncooled detectors (12) are disposed on a common substrate. In accordance with the teachings of the present invention, the novel sensor (10) can be used to focus an optical system at cryogenic temperatures. The inventive method includes illuminating energy onto the sensor (10) through the optical system at ambient temperatures and then adjusting the position of the sensor (10) until maximum illumination is received by the auxiliary detectors (12). This determines the location of the focal plane of the system at ambient temperatures. The location of the focal plane at cryogenic temperatures can then be calculated using the location of the focal plane at ambient and a model of the thermal characteristics of the system.

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