公开(公告)号：US5351121A

公开(公告)日：1994-09-27

申请号：US9454

申请日：1993-01-27

Applicant: Thomas M. Baer ,  Kelly A. Cox ,  Phillip Gooding ,  John Cole ,  David F. Head ,  Gregory J. Kintz

Inventor： Thomas M. Baer ,  Kelly A. Cox ,  Phillip Gooding ,  John Cole ,  David F. Head ,  Gregory J. Kintz

IPC: G01J3/12 ,  G01J3/44 ,  G01J3/453 ,  H01S3/082 ,  H01S3/094 ,  H01S3/16 ,  G01N21/65

CPC classification number: H01S3/082 ,  G01J3/44 ,  G01J3/1256 ,  G01J3/453 ,  G01N2201/06113 ,  H01S3/094038 ,  H01S3/1673

Abstract: A Fourier Transform Raman Spectrometer system includes a folded V laser cavity. A first leg of the folded V laser cavity is defined by a highly reflective end mirror and a dichroic fold mirror and a second leg of the folded V laser cavity is defined by the fold mirror and an output coupler. A solid-state laser gain medium is disposed in the first leg of the folded V laser cavity and is pumped by a pump source aligned with the optical path of the first leg of the laser cavity and radiating through the fold mirror. The fold mirror is highly transmissive at the wavelength of pump radiation from the pump source and highly reflective at the laser output wavelength. An output beam from the laser is passed through a tuneable filter comprising an acousto-optic device and is directed at a sample to be analyzed. Light reflected from the sample is directed to a Raman Spectrometer for analysis.

Abstract translation: 傅里叶变换拉曼光谱仪系统包括折叠的V激光腔。 折叠的V激光腔的第一段由高反射端镜和二向色折射镜限定，折叠的V激光腔的第二支腿由折叠镜和输出耦合器限定。 固态激光增益介质设置在折叠的V激光腔的第一支腿中，并且通过与激光腔的第一支腿的光路对齐并且通过折叠镜辐射的泵浦源来泵浦。 折射镜在来自泵浦源的泵浦辐射的波长处是高度透射的，并且在激光输出波长处具有高反射性。 来自激光器的输出光束通过包括声光器件的可调谐滤光器，并且被引导到待分析的样品。 从样品反射的光被引导到拉曼光谱仪进行分析。

公开(公告)号：US5166748A

公开(公告)日：1992-11-24

申请号：US417919

申请日：1989-10-06

Applicant: John A. Dahlquist

Inventor： John A. Dahlquist

IPC: G01N21/35 ,  G01J3/453 ,  G01N21/45 ,  G01N21/86

CPC classification number: G01J3/453 ,  G01N21/86 ,  G01N21/35 ,  G01N21/45 ,  G01N2201/101

Abstract: An on-line scanning sensor system includes a mid-infrared spectrophotometric analyzer, such as an interferometer, that can be used on-line in manufacturing environments. More particularly, the on-line scanning sensor system includes a first carriage for scanning motion across a traveling sheet of material; interferometer components that are carried by the first carriage and that includes devices for splitting and recombining infrared light, and for directing a collimated beam of the recombined light onto a traveling web of sheet material. Further, the system includes a detector system for receiving light from the interferometer components during scanning.

Abstract translation: 在线扫描传感器系统包括可在制造环境中在线使用的中等红外分光光度分析仪，例如干涉仪。 更具体地，在线扫描传感器系统包括用于扫描行进的材料片的运动的第一台架; 干涉仪部件，其由第一托架承载并且包括用于分离和重组红外光的装置，以及用于将重组光的准直光束引导到片材的行进幅材上。 此外，该系统包括用于在扫描期间从干涉仪部件接收光的检测器系统。

公开(公告)号：US5106196A

公开(公告)日：1992-04-21

申请号：US570478

申请日：1990-08-21

Applicant: Philip R. Brierley

Inventor： Philip R. Brierley

IPC: G01J3/453 ,  G01N21/55 ,  G02B17/06

CPC classification number: G01N21/55 ,  G02B19/0023 ,  G02B19/0033 ,  G02B19/009 ,  G01J3/453 ,  G01N21/552

Abstract: A specular reflection analyzer uses opposed parabolic mirror sections to direct a focussed beam at an angle of incidence against a sample surface and to receive a reflected beam at a corresponding angle of reflection. A first collimated beam of light is directed at a constant angle against the first parabolic mirror from a beam diverter movable parallel to the mirror's axis of symmetry and within the first collimated beam of light. Translation of the constant angle beam along a meridian on the surface of the first parabolic mirror changes the angle of incidence of a beam focused on the sample without changing the focal point. The light reflected from the sample is received in a corresponding manner by the second parabolic mirror and transformed into a collimated beam of constant angle to be received by a second beam diverter tracking the first beam diverter. Transfer optics may be used to adapt the apparatus for use in a conventional transmission spectrometer.

Abstract translation: 镜面反射分析仪使用相反的抛物面镜部分以相对于样品表面的入射角引导聚焦光束并且以相应的反射角接收反射光束。 第一准直光束从平行于镜的对称轴并且在第一准直光束内的光束分流器以相对于第一抛物面镜的恒定角度被引导。 沿着第一抛物面镜的表面上的子午线的恒定角度光束的平移改变聚焦在样品上的光束的入射角而不改变焦点。 从样品反射的光以相应的方式被第二抛物面反射镜接收并变换为恒定角度的准直光束，以被跟踪第一光束分流器的第二光束分流器接收。 可以使用传输光学器件来适应在常规透射光谱仪中使用的装置。

公开(公告)号：US5081358A

公开(公告)日：1992-01-14

申请号：US634604

申请日：1990-12-27

Applicant: Osamu Yoshikawa

Inventor： Osamu Yoshikawa

IPC: G01J3/453 ,  G01J5/06 ,  G01J5/34 ,  G05D23/20

CPC classification number: G01J5/34 ,  G05D23/1919 ,  G05D23/20 ,  G01J2005/063 ,  G01J2005/068 ,  G01J3/453

Abstract: A detector comprising a pyroelectric detector, a temperature control mechanism including a thermoelectric heating/cooling element for keeping the temperature of the pyroelectric detector constant, a temperature sensor, and a temperature controller responsive to the detection signal from the temperature sensor for controlling power supply to the thermoelectric heating/cooling element, and control unit provided within the temperature controller for pyroelectric detector. Synchronizing the operation of the pyroelectric detector and the thermoelectric heating/cooling element such that the power supply of the thermoelectric heating/cooling element is turned on and off only when data is not being collected by the pyroelectric detector.

公开(公告)号：US4976542A

公开(公告)日：1990-12-11

申请号：US223927

申请日：1988-07-25

Applicant: William H. Smith

Inventor： William H. Smith

IPC: G01J3/453 ,  G01J9/02

CPC classification number: G01J3/453

Abstract: An interferometer with a cylindrical lens which produces an interferogram imaging the field of view in the redundant coordinate onto a photon noise limited detector comprising a charge-coupled device or CCD having pixels aligned along two dimensions to provide spatial resolution in that dimension of the light source as well as spectral resolution. The CCD is also characterized by greater dynamic range, lower pixel response variation, and is photon noise limited, all of which enhances its use as a detector for a spectrometer.

Abstract translation: 一种具有柱面透镜的干涉仪，其产生将冗余坐标中的视野成像到光子噪声限制检测器上的干涉图，所述光子噪声限制检测器包括具有沿着二维排列的像素的电荷耦合器件或CCD，以在光源的尺寸中提供空间分辨率 以及光谱分辨率。 CCD的特征还在于更大的动态范围，更低的像素响应变化，并且是光子噪声受限的，所有这些都增强了其作为光谱仪检测器的用途。

公开(公告)号：US4844614A

公开(公告)日：1989-07-04

申请号：US92090

申请日：1987-09-01

Applicant: Jeff R. Henderson ,  Michael Jablonski ,  Gregory E. Adams

Inventor： Jeff R. Henderson ,  Michael Jablonski ,  Gregory E. Adams

IPC: G01J3/453 ,  G02B7/00 ,  G02B27/10

CPC classification number: G02B27/1073 ,  G01J3/453 ,  G02B27/144 ,  G02B7/00

Abstract: An interchangeable beam splitter holder includes a retainer which holds the beam splitter, and a front door and rear door which are both hingedly connected to the retainer. The doors are movable between a closed position, in which the doors substantially cover the beam splitter, and an open position, in which the doors are pivoted upwardly so that the beam splitter is exposed. The beam splitter holder also has three adjusting screws with ends which are adapted to abut against pivot points in the interferometer to thereby align the beam splitter. The beam splitter holder also has three spring plungers which abut against surfaces within the interferometer to push the ends of the adjusting screws against the three pivot points in the interferometer. The beam splitter mounting assembly includes a portion of the interferometer which forms a cavity in which the beam splitter is mounted, and three adjustable pivot points against which the beam splitter holder is mounted to register the inserted beam splitter in its proper position. The beam splitter holder compartment protectively stores unused beam splitter holders and covers and protects the solt into the interferometer chamber where a beam splitter holder is placed for use. The compartment includes a base, and a lid which is hingedly connected to the base to close and seal the compartment.

Abstract translation: 可互换的分束器保持器包括保持器，其保持分束器，以及前门和后门，两者都铰接地连接到保持器。 门可在关闭位置之间移动，门关闭位置，其中门基本上覆盖分束器，并且打开位置，门向上枢转，使得分束器被暴露。 分束器支架还具有三个调节螺钉，其端部适于抵靠干涉仪中的枢转点，从而对准分束器。 分束器支架还具有三个弹簧柱塞，该弹簧柱塞抵靠干涉仪内的表面，以将调节螺钉的端部推到干涉仪中的三个枢转点上。 分束器安装组件包括干涉仪的一部分，其形成有分束器安装在其中的空腔，以及三个可调节的枢转点，分束器保持器安装在该可调枢轴点上，以将插入的分束器对准其适当的位置。 分束器保持器隔室保护性地存储未使用的分束器保持器并覆盖并保护溶质进入干涉仪室，其中放置分束器保持器用于使用。 隔室包括基座和铰接地连接到基座的盖子，以闭合和密封隔间。

公开(公告)号：US4542295A

公开(公告)日：1985-09-17

申请号：US537111

申请日：1983-09-29

Applicant: David R. Mattson ,  Patrick J. Coffey

Inventor： David R. Mattson ,  Patrick J. Coffey

IPC: G01J1/42 ,  G01J3/28 ,  G01J3/453 ,  H01L25/04 ,  H01L31/0352 ,  H01L27/06 ,  G01J5/20

CPC classification number: G01J3/02 ,  G01J1/42 ,  G01J3/0289 ,  G01J3/2803 ,  G01J3/453 ,  H01L25/042 ,  H01L31/035281 ,  H01L2924/0002 ,  Y02E10/50

Abstract: A Fourier transform infrared spectrometer utilizes a selectable area infrared detector to optimize performance of the instrument depending upon the nature of the sample being analyzed. The detector includes an inner detecting segment and one or more outer detecting segments which extend at least partially around the inner segment and are electrically isolated therefrom. In those cases where a small area detector provides optimal sensitivity and performance, only the inner detecting segment is enabled to contribute to the output of the detector. In those cases where a larger area detector provides optimal sensitivity and performance, one or more of the outer detecting segments are enabled to contribute to the output of the detector, either alone or in combination with the inner segment. Thus, a single detector in the instrument provides optimal sensitivity and performance for a wide range of applications.

Abstract translation: 傅里叶变换红外光谱仪利用可选择的区域红外检测器来优化仪器的性能，这取决于被分析样品的性质。 检测器包括内部检测段和一个或多个外部检测段，其至少部分地围绕内部区段延伸并且与其隔离。 在小面积检测器提供最佳灵敏度和性能的情况下，只有内部检测段能够对检测器的输出作出贡献。 在较大面积检测器提供最佳灵敏度和性能的情况下，一个或多个外部检测段能够独立地或与内部部分组合地贡献于检测器的输出。 因此，仪器中的单个检测器为广泛的应用提供了最佳的灵敏度和性能。

公开(公告)号：US4278351A

公开(公告)日：1981-07-14

申请号：US37560

申请日：1979-05-09

Applicant: James B. Breckinridge ,  Robert H. Norton ,  Rudolf A. Schindler ,  Robert A. Frosch

Inventor： James B. Breckinridge ,  Robert H. Norton ,  Rudolf A. Schindler ,  Robert A. Frosch

IPC: G01B9/02 ,  G01J3/453

CPC classification number: G01J3/453

Abstract: A high resolution interferometer is provided which is insensitive to slight misalignment of its elements, avoids channeling in the spectrum, generates a maximum equal path fringe contrast, produces an even two-sided interferogram without critical matching of the wedge angles of the beamsplitter and compensator wedges, and is optically phase tunable. The interferometer includes a mirror along the path of each beam component produced by the beamsplitter, for reflecting the beam component from the beamsplitter to a corresponding retroreflector and for reflecting the beam returned by the retroreflector back to the beamsplitter. The fact that the mirror "covers" the retroreflector, so that the mirror reflects the beam component before and after it reaches the retroreflector, results in the system being insensitive to slight tilting of the mirror. A wedge located along each beam component path, is large enough to "cover" the retroreflector, so that each beam component passes through the wedge during movement towards the retroreflector and away therefrom, to assure that all portions of a beam component pass through the same thickness of glass of the wedge.

Abstract translation: 提供了一种高分辨率干涉仪，对其元素的轻微偏移不敏感，避免了光谱中的通道，产生最大相等的路径条纹对比度，产生均匀的双面干涉图，而不会对分束器和补偿器楔块的楔角进行临界匹配 ，并且是光学相位可调谐的。 干涉仪包括沿分束器产生的每个光束分量的路径的反射镜，用于将来自分束器的光束分量反射到相应的后向反射器，并将由后向反射器返回的光束反射回分光镜。 反射镜“覆盖”后向反射器的事实，使得反射镜在其到达后向反射器之前和之后反射光束分量，导致系统对镜的轻微倾斜不敏感。 沿着每个光束分量路径定位的楔形物足够大以“覆盖”后向反射器，使得每个光束分量在朝向后向反射器移动并远离反射器的过程中穿过楔形物，以确保光束分量的所有部分通过相同 楔形玻璃的厚度。

公开(公告)号：US4181440A

公开(公告)日：1980-01-01

申请号：US858596

申请日：1977-12-08

Applicant: Robert A. Administrator of the National Aeronautics and Space Administration, with respect to an invention of Frosch ,  Rudolf A. Schindler

Inventor： Robert A. Administrator of the National Aeronautics and Space Administration, with respect to an invention of Frosch ,  Rudolf A. Schindler

IPC: G01J3/453 ,  G01B9/02

CPC classification number: G01J3/453

Abstract: An over-under double-pass interferometer in which the beamsplitter area and thickness can be reduced to conform only with optical flatness considerations is achieved by offsetting the optical center line of one cat's-eye retroreflector relative to the optical center line of the other in order that one split beam be folded into a plane distinct from the other folded split beam. The beamsplitter is made transparent in one area for a first folded beam to be passed to a mirror for doubling back and is made totally reflective in another area for the second folded beam to be reflected to a mirror for doubling back. The two beams thus doubled back are combined in the central, beam-splitting area of the beamsplitter and passed to a detector. This makes the beamsplitter insensitive to minimum-thickness requirements and selection of material.

Abstract translation: 通过使一个猫眼后向反射器的光学中心线相对于另一个的光学中心线相对顺序地偏移，可以实现分束器面积和厚度可以减小以符合光学平面度考虑的超欠下双通道干涉仪 一个分裂的光束被折叠成与另一个折叠的分束不同的平面。 分束器在一个区域中被制成透明的，用于第一折叠光束以被传递到用于加倍的反射镜，并且在另一区域中被制成完全反射，以使第二折叠光束被反射到用于加倍的反射镜。 因此将两倍的光束组合在分束器的中心分束区域中并传递到检测器。 这使得分光器对最小厚度要求和材料选择不敏感。

公开(公告)号：US4179219A

公开(公告)日：1979-12-18

申请号：US894675

申请日：1978-04-10

Applicant: Stanley T. Smith

Inventor： Stanley T. Smith

IPC: G01J3/453 ,  G01B9/02 ,  G01J3/00

CPC classification number: G01J3/453

Abstract: A spectral scan by using a rotating spiralling toroidal mirror. The scan is made of a light beam from a source. A beamsplitter divides the beam into two components. One component is reflected off of a fixed mirror back to the beamsplitter. The second component is reflected off of the spiralling toroidal mirror back to the beamsplitter. As the mirror rotates, the pathlength constantly changes producing an interference pattern for all wavelengths within the range of the instrument.

Abstract translation: 通过使用旋转的螺旋环形镜进行光谱扫描。 扫描由源的光束构成。 分束器将光束分成两部分。 一个组件从固定镜反射回分束器。 第二个组件从螺旋形环形镜反射回分束器。 当镜子旋转时，光程长度不断变化，会对仪器范围内的所有波长产生干涉图案。