公开(公告)号：US5420681A

公开(公告)日：1995-05-30

申请号：US101419

申请日：1993-08-03

Applicant: Robert A. Woodruff

Inventor： Robert A. Woodruff

IPC: G01J3/02 ,  G01J3/18 ,  G01J3/28 ,  G01J3/36

CPC classification number: G01J3/2823 ,  G01J3/02 ,  G01J3/0208 ,  G01J3/0291 ,  G01J3/0294 ,  G01J3/36 ,  G01J2003/1828 ,  G01N2201/024

Abstract: A multiple spectral imager includes three modular imaging spectrometers, each having a respective collimator, dispersing element, and imaging system. Each collimator includes a pair of parabolic reflectors having a common focal point and an elongated slit positioned at the focal point, and each collimator defines a pupil near the respective dispersing element. The dispersing elements disperse light from various positions along the slit of the collimator into the respective imaging system, and each of the imaging systems includes an array detector that intercepts the dispersed light from the respective dispersing element and registers spectral information in a first direction and spatial information in a second direction. The spectrometers are stacked adjacent to one another, and light from a single directing mirror enters the collimators of all three of the spectrometers. The three array detectors are each responsive to a separate respective spectral region.

Abstract translation: 多光谱成像仪包括三个模块化成像光谱仪，每个具有相应的准直仪，分散元件和成像系统。 每个准直器包括一对抛物面反射器，其具有公共焦点和位于焦点处的细长狭缝，并且每个准直器限定在相应的分散元件附近的光瞳。 分散元件将来自准直仪的狭缝的各种位置的光分散到相应的成像系统中，并且每个成像系统包括阵列检测器，其拦截来自各个分散元件的分散的光，并将光谱信息在第一方向和空间 信息在第二个方向。 光谱仪彼此相邻堆叠，来自单个定向镜的光进入所有三个光谱仪的准直仪。 三个阵列检测器各自响应于单独的相应光谱区域。

公开(公告)号：US5251007A

公开(公告)日：1993-10-05

申请号：US720757

申请日：1991-07-01

Applicant: Gunter Rinke

Inventor： Gunter Rinke

IPC: G01J3/28 ,  G01J3/36 ,  G01J3/42

CPC classification number: G01J3/36 ,  G01J3/2803 ,  G01J3/42 ,  G01J2003/2866 ,  G01J3/0294

Abstract: The invention relates to a dual-beam spectrometer in which a measuring beam, after passage through a measuring cell, and a reference beam each travel through an entrance slit into a spectrometer. Both beams are spectrally separated by means of an optical grating. The spectrometer is intended to operate with a single photodiode array. According to the invention, the two entrance slits, the center of the grating and the measuring and reference spectra lie in one plane; both spectra are recorded on a single detector array, with the spectrum of the measuring beam of the +1 order directly following the spectrum of the reference beam of the -1 order.

Abstract translation: PCT No.PCT / DE90 / 00887 Sec。 371日期1991年7月1日 102（e）日期1991年7月1日PCT 1990年11月19日PCT PCT。 公开号WO91 / 08454 日期：1991年6月13日。本发明涉及一种双光束光谱仪，其中在通过测量池之后的测量光束和参考光束各自穿过入口狭缝进入光谱仪。 两个光束通过光栅光谱分离。 光谱仪旨在使用单个光电二极管阵列进行操作。 根据本发明，两个入口狭缝，光栅的中心和测量和参考光谱位于一个平面中; 两个光谱都记录在单个检测器阵列上，+1阶的测量光谱的光谱直接跟随-1阶的参考光束的光谱。

公开(公告)号：US4779984A

公开(公告)日：1988-10-25

申请号：US17941

申请日：1987-02-24

Applicant: Lacy G. Cook

Inventor： Lacy G. Cook

IPC: G01J3/453 ,  G01J9/02 ,  G02B6/34 ,  G01J3/45

CPC classification number: G01J3/02 ,  G01J3/0208 ,  G01J3/0259 ,  G01J3/0294 ,  G01J3/4531 ,  G02B6/12007 ,  G02B6/2931 ,  G02B6/29358 ,  G02B6/4215

Abstract: An integrated optic holographic spectrometer (10) for analyzing electromagnetic radiation from a source (12) is disclosed. The holographic spectrometer (10) comprises a substrate (18) having aperture (20) for restricting the receipt of electromagnetic radiation. The spectrometer (10) also includes two optical waveguides (22, 24) for dividing the electromagnetic radiation received through the aperture (20) into at least a first and second portions. A geodesic lens (26) is provided for collimating the first and second portions of the electromagnetic radiation. Finally, the spectrometer (10) includes a linear detector array (28) optically communicating with the geodesic lens (26) to provide an output responsive to the interference between the first and second portions of the electromagnetic radiation received through the aperture (20).

Abstract translation: 公开了一种用于分析来自源（12）的电磁辐射的集成光学全息光谱仪（10）。 全息光谱仪（10）包括具有用于限制电磁辐射的接收的孔（20）的衬底（18）。 光谱仪（10）还包括用于将通过孔（20）接收的电磁辐射分成至少第一和第二部分的两个光波导（22,24）。 设置测地镜（26）以准直电磁辐射的第一和第二部分。 最后，光谱仪（10）包括与测距透镜（26）光学连通的线性检测器阵列（28），以响应于通过孔（20）接收的电磁辐射的第一和第二部分之间的干涉而提供输出。

公开(公告)号：US4657398A

公开(公告)日：1987-04-14

申请号：US742775

申请日：1985-06-10

Applicant: Albert Brunsting

Inventor： Albert Brunsting

IPC: G01N21/27 ,  G01J3/12 ,  G01J3/42 ,  G01J3/427 ,  G01J3/51 ,  G01N21/31 ,  G01N21/59

CPC classification number: G01N21/31 ,  G01J3/12 ,  G01J3/32 ,  G01J2003/1234 ,  G01J3/0294 ,  G01N21/4738 ,  G01N21/59

Abstract: Simultaneous multiple photometer measurements are made by simultaneously passing light to be measured through multiple light paths to different locations of a circularly variable filter; passing the light through the circularly variable filter at said locations; collecting the light passed through the circularly variable filter at each location; transmitting the light passed through the circularly variable filter to separate detectors; and measuring the light transmitted along each light path by said detectors.

Abstract translation: 通过将待测量的光通过多个光路同时传递到循环可变滤波器的不同位置来进行同时多个光度计测量; 在所述位置使光通过循环可变滤波器; 收集每个位置通过循环可变过滤器的光; 将通过循环可变滤波器的光透射到分离的检测器; 并且通过所述检测器测量沿着每个光路传输的光。

公开(公告)号：US4345840A

公开(公告)日：1982-08-24

申请号：US138306

申请日：1980-04-08

Applicant: Alexander F. H. Goetz ,  Richard A. Machida

Inventor： Alexander F. H. Goetz ,  Richard A. Machida

IPC: G01J3/02 ,  G01J3/04 ,  G01J3/12 ,  G01J3/28 ,  G01J3/36 ,  G01J3/42 ,  G01N21/31 ,  G01J3/50 ,  G01N21/25

CPC classification number: G01N21/314 ,  G01J3/02 ,  G01J3/0232 ,  G01J3/0272 ,  G01J3/0286 ,  G01J3/0294 ,  G01J3/04 ,  G01J3/28 ,  G01J3/36 ,  G01J2003/1217 ,  G01J2003/123 ,  G01J2003/2833 ,  G01J2003/425 ,  G01J3/2803

Abstract: A hand-held instrument is provided to compare information from selected infrared and visible bands in the 0.4 to 2.5 micrometer range, to perform ratioing via a dividing circuit (17) and to directly read out, via a display system (18), ratio values in a continuous digital display. The dual-beam, ratioing radiometer contains two optical trains (10, 12), each having two repeater lenses (L1a, L1b and L2a, L2b) and a cooled lead sulfide detector (D1, D2). One of the trains (10) is pivotal to facilitate measurements at distances ranging from about 1 meter to infinity. The optical trains are intersected by a set of two coaxially-mounted filter wheels (F1, F2), each containing up to five interference filters and slits to pass radiation filtered by the other. Filters with band passes as narrow as 0.01 micrometer are used in the region 0.4 to 2.5 micrometers. The total time for a calibration and measurement is only a few seconds. It is known from previous field studies using prior art devices, that materials, e.g., clay minerals, and carbonate minerals such as limestone, have unique spectral properties in the 2.0 to 2.5 micrometer region. Using properly chosen spectral filters, and ratioing the signals to remove the effect of topography on the brightness measured, the instrument can be used for real-time analysis of reflecting materials in the field. Other materials in the broader range of 0.4 to 2.5 micrometers (and even beyond) could be similarly identified once the reflectance spectrum of the material is established by any means.

Abstract translation: 提供手持式仪器以比较在0.4至2.5微米范围内的所选红外线和可见波段的信息，通过分频电路（17）执行比例，并通过显示系统（18）直接读出比率值 在连续的数字显示。 双光束比例辐射计包含两个光学列车（10,12），每个具有两个中继器透镜（L1a，L1b和L2a，L2b）和冷却的硫化铅检测器（D1，D2）。 火车（10）中的一个是关键的，以便于距离范围从大约1米到无穷远的测量。 光学列车由一组两个同轴安装的滤光轮（F1，F2）相交，每个滤光轮最多包含五个干涉滤光片和狭缝，以通过另一个过滤的辐射。 带宽为0.01微米的滤光片在0.4至2.5微米的范围内使用。 校准和测量的总时间只有几秒钟。 从使用现有技术装置的先前现场研究中已知，例如粘土矿物和碳酸盐矿物如石灰石的材料在2.0至2.5微米的区域中具有独特的光谱性质。 使用适当选择的光谱滤波器，并比较信号以消除地形对测量的亮度的影响，仪器可用于现场反射材料的实时分析。 一旦通过任何方式建立材料的反射光谱，可以类似地识别在0.4至2.5微米（甚至更远）的更宽范围内的其它材料。

公开(公告)号：US12055494B2

公开(公告)日：2024-08-06

申请号：US17887924

申请日：2022-08-15

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Suyeon Lee ,  Unjeong Kim ,  Hyuck Choo ,  Seungju Han ,  Hyochul Kim

IPC: G01N21/65 ,  G01B11/25 ,  G01J3/02 ,  G01J3/28 ,  G06F18/24 ,  G06F18/25 ,  G06V10/143 ,  G06V10/145 ,  G06V10/764 ,  G06V10/80 ,  G06V20/52 ,  G06V40/16

CPC classification number: G01N21/65 ,  G01B11/254 ,  G01J3/0294 ,  G01J3/2823 ,  G06F18/24 ,  G06F18/256 ,  G06V10/143 ,  G06V10/145 ,  G06V10/764 ,  G06V10/811 ,  G06V20/52 ,  G06V40/165 ,  G01J2003/2826

Abstract: An object recognition apparatus includes a first spectrometer configured to obtain a first type of spectrum data from light scattered, emitted, or reflected from an object; a second spectrometer configured to obtain a second type of spectrum data from the light scattered, emitted, or reflected from the object, the second type of spectrum data being different from the first type of spectrum data; an image sensor configured to obtain image data of the object; and a processor configured to identify the object using data obtained from at least two from among the first spectrometer, the second spectrometer, and the image sensor and using at least two pattern recognition algorithms.

公开(公告)号：US20240219232A1

公开(公告)日：2024-07-04

申请号：US18335269

申请日：2023-06-15

Applicant: Jacov Tutavac ,  Dubravko Babic

Inventor： Jacov Tutavac ,  Dubravko Babic

IPC: G01J3/02 ,  B64G1/66 ,  G01J3/06 ,  G01J3/12 ,  G01J3/42

CPC classification number: G01J3/0294 ,  B64G1/66 ,  G01J3/0208 ,  G01J3/0275 ,  G01J3/06 ,  G01J3/12 ,  G01J3/42 ,  G01J2003/066 ,  G01J2003/1213

Abstract: A light detection module has N optical channels, each with an optical filter, a detector, and an amplifier; and an N×1 switch with N input ports each connected to one corresponding output port of each channel to receive an amplified detector output corresponding to a filtered optical intensity incident on that detector. The switch cycles between channels, connecting each amplified detector output in turn to the output port. An ADC samples a time dependent optical intensity signal from the switch, generating a corresponding ADC digital signal output. A microcontroller, connected to the N×1 switch and the ADC, controls acquisition by the ADC to provide a digital voltage data stream from each channel; making the average optical intensity value characterizing the voltage data stream available from each channel at a digital output port of the microcontroller, as N data values, characterizing the light incident on the N channels of the module.

公开(公告)号：US12007275B2

公开(公告)日：2024-06-11

申请号：US17576117

申请日：2022-01-14

Applicant: Apple Inc.

Inventor： Mark Alan Arbore ,  Gary Shambat ,  Matthew A. Terrel

IPC: G01J3/02 ,  G01J3/10 ,  G01J3/36 ,  G01J3/42 ,  G01N21/25 ,  G01N21/47 ,  G01N21/49

CPC classification number: G01J3/0229 ,  G01J3/0205 ,  G01J3/0216 ,  G01J3/0256 ,  G01J3/0294 ,  G01J3/10 ,  G01J3/108 ,  G01J3/36 ,  G01J3/42 ,  G01N21/25 ,  G01N21/49 ,  G01N2021/4711

Abstract: Systems and methods for determining one or more properties of a sample are disclosed. The systems and methods disclosed can be capable of measuring along multiple locations and can reimage and resolve multiple optical paths within the sample. The system can be configured with one-layer or two-layers of optics suitable for a compact system. The optics can be simplified to reduce the number and complexity of the coated optical surfaces, et al. on effects, manufacturing tolerance stack-up problems, and interference-based spectroscopic errors. The size, number, and placement of the optics can enable multiple simultaneous or non-simultaneous measurements at various locations across and within the sample. Moreover, the systems can be configured with an optical spacer window located between the sample and the optics, and methods to account for changes in optical paths due to inclusion of the optical spacer window are disclosed.

公开(公告)号：US20240094053A1

公开(公告)日：2024-03-21

申请号：US18120781

申请日：2023-03-13

Applicant: SAMSUNG ELECTRONICS CO., LTD. ,  Korea University Research and Business Foundation

Inventor： Suyeon LEE ,  Q-Han PARK ,  Unjeong KIM ,  Hojung KIM ,  Hyunjun MA

IPC: G01J3/28 ,  G01J3/02

CPC classification number: G01J3/2823 ,  G01J3/0202 ,  G01J3/0278 ,  G01J3/0294 ,  G01J3/0256 ,  G01J2003/2826

Abstract: Provided are a spectral camera and an electronic apparatus including the same. The spectral camera includes an image sensor including a plurality of channels configured to detect a plurality of central wavelengths; an optical module configured to be movable with respect to the image sensor to provide an image of an object on the image sensor; a memory configured to store first information about a change in an optical characteristic of each of the plurality of channels in the image sensor, the change in the optical characteristic of each of the plurality of channels corresponding to a movement of the optical module; and a processor configured to: obtain the first information from the memory, obtain second information corresponding to the plurality of central wavelengths detected by the image sensor, and obtain third information by correcting the second information based on the first information.

公开(公告)号：US20240027267A1

公开(公告)日：2024-01-25

申请号：US18479973

申请日：2023-10-03

Applicant: VIAVI Solutions Inc.

Inventor： William D. HOUCK ,  Valton SMITH

IPC: G01J3/02 ,  G06T7/11 ,  G01J3/28 ,  G01J3/36 ,  H04N25/443

CPC classification number: G01J3/0294 ,  G06T7/11 ,  G01J3/2823 ,  G01J3/36 ,  G01J3/2803 ,  H04N25/443 ,  G01J2003/2836 ,  G06T2207/20104 ,  G01J2003/2826 ,  G01J2003/2806

Abstract: A multispectral sensor device may include a sensor array comprising a plurality of channels and one or more processors to determine that a time-sensitive measurement is to be performed, wherein the time-sensitive measurement is to be performed using data collected by one or more channels of the plurality of channels; cause the data to be collected by a proper subset of channels, of the plurality of channels, wherein the proper subset of channels includes the one or more channels; and determine the time-sensitive measurement based on the data.