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    Digitally settable selective control for speed of wavelength scan or for time base scan
    521.
    发明授权
    Digitally settable selective control for speed of wavelength scan or for time base scan 失效
    用于波长扫描速度或时基扫描速度的数字可选择选择控制

    公开(公告)号：US4037960A

    公开(公告)日：1977-07-26

    申请号：US683188

    申请日：1976-05-04

    Applicant: James H. Macemon

    Inventor： James H. Macemon

    IPC: G01J3/06 ,  G01N21/00 ,  G01J3/42

    CPC classification number: G01J3/06

    Abstract: In a recording spectrophotometer the ordinate of the plotter-scriber is controlled by the output of a photomultiplier while the abscissa of the plotter-scriber is controlled by a selectable mode manually adjusted controller.In one mode, the controller furnishes a time base signal of selected rate of change, so that the abscissa of the plotter-scriber varies with the passage of time in accordance with said rate of change.In aother mode, the controller furnishes a stepping signal of selected periodicity, for application to a stepping motor, which changes the wavelength adjustment of the spectrophotometer at a rate determined by the selected periodicity. The spectrophotometer furnishes to the plotter-scriber an analog voltge varying with the instantaneous wavelength setting of the spectrophotometer, so that the abscissa of the plotter-scriber correspondingly varies with the instantaneous value of the wavelength.A common manually adjusted digital setting means is used for adjusting either the said selected rate of change of the time base or the said selected periodicity of the stepping signal.

    Scanning monochromator and concave reflecting grating employed therein
    522.
    发明授权
    Scanning monochromator and concave reflecting grating employed therein 失效
    其中采用扫描单色仪和凹面反射光栅

    公开(公告)号：US4027975A

    公开(公告)日：1977-06-07

    申请号：US580920

    申请日：1975-05-27

    Applicant: David Turner ,  Robert John Speer

    Inventor： David Turner ,  Robert John Speer

    IPC: G01J3/06 ,  G01J3/20 ,  G02B5/18 ,  G01J3/18

    CPC classification number: G02B5/1861 ,  G01J3/06 ,  G01J3/20

    Abstract: A scanning monochromator or spectrometer having a reflecting grating whose curvature in the meridian plane is equal to the curvature of a circle upon which the source, detecting means and grating lie and whose lines are ruled with a frequency which varies systematically and directly in proportion to the distance of the lines from a point of origin on the track as determined by the geometry of the equipment, and gratings therefor.

    Abstract translation: 具有反射光栅的扫描单色仪或光谱仪，其在子午线平面中的曲率等于源，检测装置和光栅所在的圆弧的曲率，并且其线被划分为频率，该频率系统地和直接地与 由设备的几何形状确定的轨道上的原点距离以及光栅的距离。

    Echelle spectrometer
    524.
    发明授权
    Echelle spectrometer 失效
    ECHELLE光谱仪

    公开(公告)号：US3658423A

    公开(公告)日：1972-04-25

    申请号：US3658423D

    申请日：1971-01-14

    Applicant: SPECTRAMETRICS INC

    Inventor： ELLIOTT WILLIAM G

    IPC: G01J3/00 ,  G01J3/06 ,  G01J3/12 ,  G01J3/14 ,  G01J3/18 ,  G01J3/02

    CPC classification number: G01J3/1809 ,  G01J3/06 ,  G01J3/14 ,  G01J2003/1204 ,  G01J2003/1828

    Abstract: A spectrometer having an entrance aperture, at least one collimating mirror, a prism and an echelle grating which is so mounted to provide rotation in two directions thereby providing adjustment of the vertical and horizontal components of the dispersed energy in the exit focal plane.

    Abstract translation: 具有入射孔的光谱仪，至少一个准直镜，棱镜和梯形光栅，其被安装成在两个方向上提供旋转，从而提供在出射焦平面中的分散能量的垂直和水平分量的调节。

    Optical systems having spatially invariant outputs
    526.
    发明授权
    Optical systems having spatially invariant outputs 失效
    具有空间不确定性输出的光学系统

    公开(公告)号：US3603690A

    公开(公告)日：1971-09-07

    申请号：US3603690D

    申请日：1969-10-22

    Applicant: NASA

    Inventor： HARD THOMAS M

    IPC: G01J3/06 ,  H01S3/081 ,  H01S3/086 ,  G01B9/02 ,  G01N21/16

    CPC classification number: G01J3/06 ,  H01S3/0812 ,  H01S3/086

    Abstract: This disclosure describes optical systems that have output beams that are spatially invariant to the angle of incidence upon a certain rotatable surface forming a part of the systems, and can be used to select the wavelength of the output of an optical source, such as a laser cavity, or to aid in measuring the reflectance of a material in reflectance spectroscopy. The optical systems comprise various combinations of plane mirrors and plane diffraction gratings (or sample surfaces), in some embodiments, spherical mirrors. The plane mirrors, plane gratings and spherical mirrors are either rotated or fixed in space in accordance with a particular embodiment. The moveable suitable movement mechanism, such as a micrometer. By rotating the shaft of the micrometer to a particular incidence angle, the frequency of the output of a laser cavity can be selected. Alternately, the reflectance of a material can be observed for a particular angle. In either case, the output beam remains spatially invariant as the position of the shaft and its attached elements is changed.

    Spectrometer
    527.
    发明授权
    Spectrometer 失效

    公开(公告)号：US3594083A

    公开(公告)日：1971-07-20

    申请号：US3594083D

    申请日：1969-07-07

    Applicant: BARRINGER RESEARCH LTD

    Inventor： BARRINGER ANTHONY RENE

    IPC: G01J3/28 ,  G01J3/457 ,  G01J3/42 ,  G01J3/06

    CPC classification number: G01J3/457 ,  G01J2003/2866

    Abstract: A scanning spectrometer having means for scanning entrance slit images across an exit slit. A predetermined spectrum is recorded photographically or magnetically, and means synchronized with the scanning means is provided for obtaining correlation signals from the recorded spectrum. The correlation signals are precisely synchronized with the scanning means, and are used for correlation with the light passing through the exit slit.

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