公开(公告)号：US06813018B2

公开(公告)日：2004-11-02

申请号：US10289633

申请日：2002-11-07

Applicant: Isaac Richman

Inventor： Isaac Richman

IPC: G01J318

CPC classification number: G01J3/04 ,  G01J3/02 ,  G01J3/0208 ,  G01J3/0243 ,  G01J3/2823

Abstract: The hyperspectral imager includes a diffraction grating, a collecting reflecting element and a reimaging system. The diffraction grating has an entrance slit formed at an entrance slit location therein. The entrance slit has a long dimension oriented in a y-direction. The entrance slit transmits the radiation from a slice of an incoming scene image. The collecting reflecting element receives the transmitted radiation of the incoming scene image and reflects the transmitted radiation to a diffractive surface of the diffraction grating. Grooves on the diffractive surface are substantially parallel to the y-direction. The reimaging system receives radiation diffracted by the diffractive surface. The reimaging system produces a spectral image of the entrance slit at a focal surface. The spectral image provides a spectrum of radiation propagating through the entrance slit into the hyperspectral imager such that the spectrum of radiation from a first region in the y-direction. can be distinguished from the spectra of radiation from other regions in the y-direction.

Abstract translation: 高光谱成像器包括衍射光栅，收集反射元件和再成像系统。 衍射光栅具有形成在其中的入口狭缝位置处的入口狭缝。 入口狭缝具有沿y方向取向的长尺寸。 入口狭缝从进入的场景图像的切片传送辐射。 收集反射元件接收入射场景图像的透射辐射并将透射的辐射反射到衍射光栅的衍射表面。 衍射面上的凹槽基本上平行于y方向。 该成像系统接收由衍射面衍射的辐射。 该重建成像系统在焦点表面产生入射狭缝的光谱图像。 光谱图像提供通过入射狭缝传播到高光谱成像器中的辐射光谱，使得来自y方向上的第一区域的辐射光谱。 可以与y方向上其他区域的辐射光谱区分开来。

公开(公告)号：US06590649B1

公开(公告)日：2003-07-08

申请号：US09890343

申请日：2002-01-02

Applicant: Harmen Broersma

Inventor： Harmen Broersma

IPC: G01J318

CPC classification number: G01J3/18 ,  G01J3/02 ,  G01J3/0208 ,  G01J3/0218 ,  G01J3/12 ,  G02B5/1814

Abstract: A spectrophotometer, comprising a housing in which a measuring system is arranged, which housing has a measuring opening, via which light is passed to the measuring system. The measuring system comprises a grating monochromator, an autocollimator cooperating therewith, and detection means for the light originating from the grating monochromator. The grating monochromator and the autocollimator thereby form one whole.

Abstract translation: 一种分光光度计，包括其中布置有测量系统的壳体，该壳体具有测量开口，光通过该测量开口传递到测量系统。 测量系统包括光栅单色仪，与之配合的自动准直仪，以及用于来自光栅单色仪的光的检测装置。 因此，光栅单色器和自动准直器形成一个整体。

公开(公告)号：US06717670B2

公开(公告)日：2004-04-06

申请号：US10168314

申请日：2002-06-20

Applicant: Helmut Becker-Ross ,  Stefan Florek ,  Michael Okruss

Inventor： Helmut Becker-Ross ,  Stefan Florek ,  Michael Okruss

IPC: G01J318

CPC classification number: G01J3/22 ,  G01J3/18

Abstract: The invention relates to a spectrometer (10) with a dispersive element (16) that can be displaced between at least two positions. In the first position, the simply dispersed radiation (44) of a selected wavelength is reflected directly back in the incident beam path (42), while in the second position the dispersed radiation (32) of the selected wavelength can be directed to a reflective element (30) that is positioned such that the radiation (34) can be directed at least one more time across the dispersive element (16) and then back to the incident beam path (38). The spectrometer is provided with a device, for example, a mirror, an echelle grating or a prism that deflects the beam from the plane of dispersion, which is arranged in such a manner that the simply dispersed beam (34) runs in another plane than the multiply dispersed beam (36). The mirror (30) is inclined by an axis (54) that extends parallel to the plane of dispersion and perpendicular to the incident beam (32).

Abstract translation: 本发明涉及一种具有分散元件（16）的分光计（10），其可在至少两个位置之间移位。 在第一位置，所选择的波长的简单分散的辐射（44）被直接反射入入射光束路径（42），而在第二位置，所选波长的分散辐射（32）可以被引导到反射 定位成使得辐射（34）可以穿过色散元件（16）至少一次以上并且然后返回到入射光束路径（38）的元件（30）。 光谱仪设置有例如镜子，梯形光栅或棱镜，其将光束从分散体平面偏转，该棱镜以这样的方式布置，使得简单分散的光束（34）在另一个平面中延伸， 多分散光束（36）。 反射镜（30）由垂直于入射光束（32）平行延伸的轴（54）倾斜。

公开(公告)号：US06501547B1

公开(公告)日：2002-12-31

申请号：US09507369

申请日：2000-02-18

Applicant: Michael A. Spencer ,  Donald A. Collins, Jr.

Inventor： Michael A. Spencer ,  Donald A. Collins, Jr.

IPC: G01J318

CPC classification number: G06K9/22 ,  G01J3/0272 ,  G01J3/28 ,  G01J3/42 ,  G01J3/50 ,  G01J3/502 ,  G01N21/251 ,  G01N21/274 ,  G06K7/10584 ,  G06K7/10732 ,  G06K7/10851 ,  G06K2209/17

Abstract: A hand-held produce data collector which captures wavelength information from a produce item. The produce data collector includes a light emitter for illuminating a produce item, collecting optics for collecting light reflected from the produce item and separating the reflected light into a plurality of wavelength portions of light, a photosensor for capturing wavelength information from the wavelength portions of light, control circuitry, and a hand-held housing containing the light emitter, the collecting optics, the photosensor, and the control circuitry. The control circuitry may store reference wavelength information and compare the captured wavelength information to the reference wavelength information to identify the produce item.

Abstract translation: 一种手持式产品数据采集器，用于捕获来自产品的波长信息。 产品数据收集器包括用于照射产品的光发射器，收集用于收集从产品反射的光的光并将反射光分离成多个波长部分的光传感器，用于从光的波长部分捕获波长信息 控制电路以及包含发光器，收集光学器件，光电传感器和控制电路的手持外壳。 控制电路可以存储参考波长信息，并将捕获的波长信息与参考波长信息进行比较以识别产品项目。

公开(公告)号：US06452675B1

公开(公告)日：2002-09-17

申请号：US09646434

申请日：2000-09-18

Applicant: Jörg Müller ,  Dietmar Sander

Inventor： Jörg Müller ,  Dietmar Sander

IPC: G01J318

CPC classification number: G02B6/12007 ,  G01J3/0259 ,  G01J3/18

Abstract: A spectrometer fitted with a thin light guide layer in a stratification manufactured by thin-film technology, said light guide being sandwiched between two cover layers of lower index of refraction, said layer light guide's end face comprising a grating which is illuminated with the light to be analyzed and passing through the said light guide layer, the spectrometer furthermore comprising a line sensor onto which is imaged the spectrum, the staircase echelon grating being fitted with transparent step surfaces and with step edges perpendicular to said layer's plane, a second medium forming an interface with the grating's step surfaces and having an index of refraction less than that of the light guide layer, characterized in that the height and the width of the grating continuously change in the staircase direction in such manner that for two selected wavelengths the particular total optical paths through the light guide layer and the second medium as far as a focal point pertaining the particular wavelength shall differ by the same multiple of the particular wavelength.

Abstract translation: 一种在薄膜技术制成的分层中配备有薄导光层的光谱仪，所述光导被夹在两个较低折射率的覆盖层之间，所述层光导的端面包括用光照射的光栅 分析并通过所述导光层，所述光谱仪还包括对其进行成像的线传感器，所述阶梯梯形光栅装配有透明台阶表面，并且具有垂直于所述层的平面的阶梯边缘，形成第二介质的第二介质 与光栅的台阶表面接合并且具有小于导光层的折射率的折射率，其特征在于光栅的高度和宽度在阶梯方向上连续变化，使得对于两个选定的波长，特定的总光学 通过导光层和第二介质的路径，直到与之相关的焦点 特定波长的特定波长的相同倍数将不同。

公开(公告)号：US06791086B2

公开(公告)日：2004-09-14

申请号：US10227135

申请日：2002-08-23

Applicant: James T Russell

Inventor： James T Russell

IPC: G01J318

CPC classification number: G01J3/36 ,  G01J3/06 ,  G01J3/18 ,  G01N21/3504

Abstract: A robust, compact spectrometer apparatus for determining respective concentrations or partial pressures of multiple gases in a gas sample with single as well as multiple and even overlapping, absorption or emission spectra that span a wide spectral range.

Abstract translation: 一种坚固，紧凑的光谱仪装置，用于确定气体样品中多种气体的浓度或分压，其具有单个以及跨越宽光谱范围的多个且甚至重叠的吸收或发射光谱。

公开(公告)号：US06744506B2

公开(公告)日：2004-06-01

申请号：US10163915

申请日：2002-06-06

Applicant: Tsutomu Kaneko ,  Toshikazu Yamamoto

Inventor： Tsutomu Kaneko ,  Toshikazu Yamamoto

IPC: G01J318

CPC classification number: G02B27/286 ,  G02B5/3083

Abstract: A depolarizing plate comprising a first rectangular wedge plate that has a first crystallographic optical axis in a diagonal direction of the rectangle and which has a thickness thereof in a vertical direction vary continuously in a direction 45 degrees from said first crystallographic optical axis and a second rectangular wedge plate that has a second crystallographic optical axis in a diagonal direction of the rectangle crossing said first crystallographic optical axis at right angles and which has a thickness thereof in a vertical direction vary continuously in a direction 45 degrees from said second crystallographic optical axis, the two wedge plates being joined in such a position that said first crystallographic optical axis crosses said second crystallographic optical axis at right angles, wherein the slope formed by the joint of said wedge plates is rotated about the optical axis of an incident ray of light.

Abstract translation: 包括第一矩形楔形板的去极化板，该第一矩形楔形板在矩形的对角线方向上具有第一结晶光轴并且其垂直方向的厚度在与所述第一结晶光轴成45度的方向上连续变化，第二矩形 在与所述第一晶体光轴成直角相交的矩形的对角线方向上具有垂直方向的厚度的第二晶体光轴在与所述第二结晶光轴成45度的方向上连续变化， 两个楔形板在这样的位置连接，使得所述第一晶体光轴以直角与所述第二结晶光轴交叉，其中由所述楔形板的接头形成的斜面围绕入射光线的光轴旋转。

公开(公告)号：US06646740B2

公开(公告)日：2003-11-11

申请号：US09957696

申请日：2001-09-19

Applicant: David M. Braun ,  Paul Emerson Bussard ,  Roger L. Jungerman ,  Benjamin S. Wheeler

Inventor： David M. Braun ,  Paul Emerson Bussard ,  Roger L. Jungerman ,  Benjamin S. Wheeler

IPC: G01J318

CPC classification number: G01J3/18 ,  G01J3/0208 ,  G01J3/021

Abstract: An optical filter for generating a filter output signal from a filter input signal, the filter output signal consisting of light from the filter input signal in a predetermined bandwidth. The filter includes a grating, a first optical assembly and an optical signal path. A portion of the input signal traverses the optical signal path such that it is diffracted from the grating to form a first intermediate beam that is input to the first optical assembly, which generates a second intermediate beam therefrom. The second intermediate beam is directed back to the grating and is diffracted by the grating, a portion of the diffracted second intermediate beam forming a portion of the filter output signal. The second intermediate beam is the inverted image of the first intermediate beam, and hence, the second reflection from the grating compensates for the time dispersion introduced by the first reflection from the grating.

Abstract translation: 一种用于从滤波器输入信号产生滤波器输出信号的滤波器，滤波器输出信号由来自滤波器输入信号的光以预定带宽组成。 滤波器包括光栅，第一光学组件和光信号路径。 输入信号的一部分穿过光信号路径，使得其从光栅衍射以形成输入到第一光学组件的第一中间光束，该第一中间光束从其产生第二中间光束。 第二中间光束被引导回光栅并被光栅衍射，衍射的第二中间光束的一部分形成滤光器输出信号的一部分。 第二中间光束是第一中间光束的反转图像，因此来自光栅的第二反射补偿来自光栅的第一反射引入的时间色散。

公开(公告)号：US06606156B1

公开(公告)日：2003-08-12

申请号：US09538236

申请日：2000-03-30

Applicant: Peter Ehbets ,  Adrian von Orelli ,  Eckard Vasold ,  Wilhelm Schebesta

Inventor： Peter Ehbets ,  Adrian von Orelli ,  Eckard Vasold ,  Wilhelm Schebesta

IPC: G01J318

CPC classification number: G01J3/02 ,  G01J3/0286

Abstract: A spectrometer is provided having a carrier, a light input for measurement light disposed on the carrier, a diffraction grating disposed on the carrier for dispersing the measurement light received from the light input, an opto-electronic detector disposed on the carrier for receiving and detecting the measurement light dispersed by the diffraction grating, at least one optical component for imaging the measurement light on the detector through the diffraction grating, a base board fastened to said carrier for supporting the opto-electronic detector, wherein the opto-electronic detector is fastened at a predetermined position on the base board, and wherein the base board and the carrier include positioning members for relatively positioning the base board on the carrier in a predetermined position. Preferably, the detector is a detector chip excluding a housing and fastened in a predetermined position on the base board. Both, carrier and base board have cooperating positioning members for positioning the base board on the carrier. The base board is preferably an electronic circuit board being fastened to the carrier in such a manner so as to allow a thermal expansion, and wherein the position of the fastening point P relative to the position of the detector on the base board is chosen such that the thermal expansion of the base board substantially compensates the drift of the spectral light component relative to the detector for at least an intermediate wavelength of the measured spectrum, the drift being caused by the thermal expansion of the diffraction grating and the carrier. In addition, the materials of the carrier, the base board, and the diffraction grating are selected with respect to their thermal expansion coefficients such that the temperature drift of the spectrum is substantially compensated for the entire measured spectrum. For most applications, the spectrometer is also sufficiently temperature compensated when using plastic components and is easily and economically produced.

公开(公告)号：US06597452B1

公开(公告)日：2003-07-22

申请号：US09716076

申请日：2000-11-17

Applicant: Wu Jiang ,  Warren Stephen Slutter ,  Kevin Lange

Inventor： Wu Jiang ,  Warren Stephen Slutter ,  Kevin Lange

IPC: G01J318

CPC classification number: G01J3/02 ,  G01J3/021 ,  G01J3/0218 ,  G01J3/0221 ,  G01J3/0243 ,  G01J3/0256 ,  G01J3/0291 ,  G01J3/22

Abstract: A Littrow-type spectrometer or monochromator using a folded light path to provide a compact optical instrument is disclosed. Light enters the instrument through an inlet aperture on a planar mirror. The aperture is located at the focus of a parabolic collimator mirror. Collimated light reflected by the parabolic mirror is reflected back to the planar mirror, which is positioned at an angle to the collimated light. The light reflected from the planar mirror is directed at a planar grating that produces diffracted light having all the wavelengths input into the system, including light of a selected wavelength, back towards the planar mirror. Light having the selected wavelength is thus caused to fall on the parabolic mirror. The parabolic mirror then focuses the selected wavelength of light onto a light exit aperture that is juxtaposed to the inlet light aperture. The planar grating can be rotatably mounted to scan the input light spectrum.

Abstract translation: 公开了使用折叠光路提供紧凑型光学仪器的Littrow型光谱仪或单色仪。 光通过平面镜上的入口孔进入仪器。 孔径位于抛物线准直镜的焦点。 由抛物面反射镜反射的准直光被反射回到与准直光成角度定位的平面镜。 从平面镜反射的光被引导到平面光栅，其产生具有输入到系统中的所有波长的衍射光，包括所选波长的光，返回到平面镜。 因此，具有所选择的波长的光落在抛物面镜上。 然后抛物面镜将所选择的波长的光聚焦到与入口光孔并列的光出口孔。 平面光栅可以可旋转地安装以扫描输入光谱。