公开(公告)号：US3711708A

公开(公告)日：1973-01-16

申请号：US3711708D

申请日：1971-02-25

Applicant: OPTICAL COATING LABORATORY INC

Inventor： GEIGER D ,  DOLIN S ,  FOLCH A

IPC: G01J3/02 ,  G01J3/04 ,  G01J3/06 ,  G01J3/26 ,  G01J3/28 ,  G01J3/42 ,  G01N30/74 ,  G01N21/26

CPC classification number: G01J3/02 ,  G01J3/0202 ,  G01J3/0232 ,  G01J3/04 ,  G01J3/06 ,  G01J3/26 ,  G01J3/2889 ,  G01J3/42 ,  G01N30/74

Abstract: A rapid scan spectrum identifier fur use in identifying infrared spectrum of the output of a gas chromatograph to identify its absorption characteristics and includes an infrared source and beam splitter, a double beam chopper for alternately sending the infrared beam through a sample or reference gas cell mounted in a suitable furnace, the output of which is recombined and analyzed by a monochromator having a narrow output passband of energy detected by a rapid response detector, the output of which is processed by suitable electronic circuitry to provide a readout. The monochromator is of the scanning type in which a grating is synchronously scanned with a circular variable filter so that the first order output of the grating is selectively passed and higher orders rejected by the filter. The sample and reference gas cell furnace assembly utilizes specially constructed sample and reference gas cells symmetrically mounted in a furnace arrangement for maintaining input gas streams at equal temperatures within each cell and above the temperature of condensation of the sample under investigation. The beam chopper contains associated photoelectronics for physically determining the location of a chopping blade to thereby provide gating signals for indicating the presence at the detector of a sample, reference, or a background signals. These grating signals are used in sample and hold circuits to convert an essentially digitally sampled output into a relatively smooth continuous curve indicative of the absorption of the sample so that the readout represents the sample absorption characteristics corrected for reference for the carrier gas and background effects. The instrument is designed to operate with scan rates of approximately 6 and 30 seconds.

Abstract translation: 快速扫描光谱标识符用于识别气相色谱仪的输出的红外光谱以识别其吸收特性，并且包括红外源和分束器，用于交替地将红外光束通过样品或参考气体电池安装的双光束斩波器 在合适的炉中，其输出由具有由快速响应检测器检测到的能量的窄输出通带的单色仪重组和分析，其输出由合适的电子电路处理以提供读数。 单色仪是扫描型的，其中光栅与圆形可变滤波器同步扫描，使得光栅的一阶输出被选择性地通过，并且较高阶数被滤光器拒绝。

公开(公告)号：US3354315A

公开(公告)日：1967-11-21

申请号：US39190964

申请日：1964-08-25

Applicant: MONSANTO CO

Inventor： PRESTON JAMES B ,  CARTER ROLLINS S ,  NEELY WILLIAM C

IPC: G01J3/28

CPC classification number: G01J3/2889

公开(公告)号：US3334538A

公开(公告)日：1967-08-08

申请号：US27838563

申请日：1963-05-06

Applicant: INST PLASMAPHYSIK G M B H

Inventor： ADELFRIED STEINHAUSEN

IPC: G01J3/28 ,  G01J11/00 ,  G01V1/24

CPC classification number: G01V1/24 ,  G01J3/2889 ,  G01J11/00

公开(公告)号：US11965778B2

公开(公告)日：2024-04-23

申请号：US17357421

申请日：2021-06-24

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Toshiya Fujii ,  Takamasa Ando

IPC: G01J3/28 ,  A61B5/00 ,  G01B11/24 ,  G01J3/02 ,  G01J3/12 ,  G01N21/47 ,  G01N21/64 ,  G01N21/65 ,  G01S17/89

CPC classification number: G01J3/2823 ,  A61B5/0075 ,  G01B11/24 ,  G01J3/0229 ,  G01J3/2803 ,  G01J3/2846 ,  G01J3/2889 ,  G01N21/65 ,  G01S17/89 ,  A61B5/0042 ,  G01J2003/1213 ,  G01J2003/2826 ,  G01N2021/4797 ,  G01N21/64

Abstract: An optical filter including filter regions arrayed two-dimensionally, in which the filter regions include a first region and a second region; a wavelength distribution of an optical transmittance of the first region has a first local maximum in a first wavelength band and a second local maximum in a second wavelength band that differs from the first wavelength band, and a wavelength distribution of an optical transmittance of the second region has a third local maximum in a third wavelength band that differs from each of the first wavelength band and the second wavelength band and a fourth local maximum in a fourth wavelength band that differs from the third wavelength band.

公开(公告)号：US11860093B2

公开(公告)日：2024-01-02

申请号：US17681650

申请日：2022-02-25

Applicant: The Boeing Company

Inventor： Keith D. Humfeld ,  Morteza Safai

IPC: G01N21/64 ,  G01J3/44 ,  G01J3/02 ,  H01S5/10 ,  G01J3/06 ,  G01J3/28

CPC classification number: G01N21/6402 ,  G01J3/0232 ,  G01J3/4406 ,  G01J3/2889 ,  G01J2003/064 ,  G01N2021/6419 ,  G01N2021/6421 ,  H01S5/1092

Abstract: An example system for inspecting a surface includes a laser, an optical system, a gated camera, and a control system. The laser is configured to emit pulses of light, with respective wavelengths of the pulses of light varying over time. The optical system includes at least one optical element, and is configured to direct light emitted by the laser to points along a scan line one point at a time. The gated camera is configured to record a fluorescent response of the surface from light having each wavelength of a plurality of wavelengths at each point along the scan line. The control system is configured to control the gated camera such that an aperture of the gated camera is open during fluorescence of the surface but closed during exposure of the surface to light emitted by the laser.

公开(公告)号：US11692876B2

公开(公告)日：2023-07-04

申请号：US17372321

申请日：2021-07-09

Applicant: SIGMA LABS, INC.

Inventor： Vivek R. Dave ,  Mark J. Cola ,  R. Bruce Madigan ,  Martin S. Piltch ,  Alberto Castro

IPC: G01J3/28 ,  G01N21/71 ,  G01J3/443 ,  B22F10/28 ,  B22F12/90 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/00 ,  B23K26/342 ,  B23K26/70 ,  B23K9/04 ,  B23K9/095 ,  B23K10/02 ,  B23K15/00 ,  G01K13/00 ,  B22F10/25 ,  B22F10/34

CPC classification number: G01J3/28 ,  B22F10/28 ,  B22F12/90 ,  B23K9/04 ,  B23K9/095 ,  B23K9/0953 ,  B23K9/0956 ,  B23K10/027 ,  B23K15/0026 ,  B23K15/0086 ,  B23K26/342 ,  B23K26/70 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/00 ,  G01J3/2889 ,  G01J3/443 ,  G01K13/00 ,  G01N21/71 ,  B22F10/25 ,  B22F10/34

Abstract: An optical manufacturing process sensing and status indication system is taught that is able to utilize optical emissions from a manufacturing process to infer the state of the process. In one case, it is able to use these optical emissions to distinguish thermal phenomena on two timescales and to perform feature extraction and classification so that nominal process conditions may be uniquely distinguished from off-nominal process conditions at a given instant in time or over a sequential series of instants in time occurring over the duration of the manufacturing process. In other case, it is able to utilize these optical emissions to derive corresponding spectra and identify features within those spectra so that nominal process conditions may be uniquely distinguished from off-nominal process conditions at a given instant in time or over a sequential series of instants in time occurring over the duration of the manufacturing process.

公开(公告)号：US20180052051A1

公开(公告)日：2018-02-22

申请号：US15692339

申请日：2017-08-31

Applicant: University of Virginia Patent Foundation

Inventor： Brooks Hart Pate ,  Justin L. Neill

IPC: G01J3/443 ,  G01N21/3586 ,  G01J3/28 ,  G01J3/433 ,  G01N21/35

CPC classification number: G01J3/443 ,  G01J3/2889 ,  G01J3/4338 ,  G01J3/453 ,  G01N21/35 ,  G01N21/3586 ,  G01N2021/3595

Abstract: An emission can be obtained from a sample in response to excitation using a specified range of excitation frequencies. Such excitation can include generating a specified chirped waveform and a specified downconversion local oscillator (LO) frequency using a digital-to-analog converter (DAC), upconverting the chirped waveform via mixing the chirped waveform with a specified upconversion LO frequency, frequency multiplying the upconverted chirped waveform to provide a chirped excitation signal for exciting the sample, receiving an emission from sample, the emission elicited at least in part by the chirped excitation signal, and downconverting the received emission via mixing the received emission with a signal based on the specified downconversion LO signal to provide a downconverted emission signal within the bandwidth of an analog-to-digital converter (ADC). The specified chirped waveform can include a first chirped waveform during a first duration, and a second chirped waveform during a second duration.

公开(公告)号：US20170343415A1

公开(公告)日：2017-11-30

申请号：US15528575

申请日：2015-11-24

Applicant: FREIE UNIVERSITAET BERLIN

Inventor： Bjoern SUESS

IPC: G01J3/28 ,  G01J3/02 ,  G01J3/453 ,  G02B26/00

CPC classification number: G01J3/2889 ,  G01J3/021 ,  G01J3/4532 ,  G01J3/4535 ,  G02B26/001

Abstract: The present invention is directed to an Interferometer (100) comprising a source (110) of a primary energy beam (111), a first reflector (120) being provided static such that a first path length from the source (110) to the first reflector (120) is constant, a reflector (1) with an energy beam reflecting surface (20) being provided by an outer surface of a sonotrode (10), wherein the reflector (1) is provided to oscillate such that a second path length from the source (110) to the reflecting surface (20) is variable, a target (140), a means for splitting an energy beam (160) arranged such that it divides the primary beam (111) into a first energy beam (112) incident onto the first reflector (120), and a second energy beam (113) incident onto the reflector (1) adapted to oscillate, and a means for combining energy beams (170) arranged such that it combines a third energy beam (114) reflected from the first reflector (120) and a fourth energy beam (115) reflected from the reflector (1) adapted to oscillate incident onto the target (140). Further provided is an infrared Fourier transform spectrometer (200).

公开(公告)号：US20170016781A1

公开(公告)日：2017-01-19

申请号：US15276452

申请日：2016-09-26

Applicant: SIGMA LABS, INC.

Inventor： Vivek R. Dave ,  Mark J. Cola ,  Bruce Madigan ,  Martin S. Piltch ,  Alberto Castro

IPC: G01K13/00 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/00 ,  B22F3/105 ,  B23K26/70 ,  B23K15/00 ,  B23K9/04 ,  B23K9/095 ,  B23K10/02 ,  G01J3/28 ,  B23K26/342

CPC classification number: G01K13/00 ,  B22F3/1055 ,  B22F2003/1057 ,  B23K9/04 ,  B23K9/095 ,  B23K9/0953 ,  B23K9/0956 ,  B23K10/027 ,  B23K15/0026 ,  B23K15/0086 ,  B23K26/342 ,  B23K26/70 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/00 ,  G01J3/28 ,  G01J3/2889 ,  G01J3/443 ,  G01N21/71

Abstract: An optical manufacturing process sensing and status indication system is taught that is able to utilize optical emissions from a manufacturing process to infer the state of the process. In one case, it is able to use these optical emissions to distinguish thermal phenomena on two timescales and to perform feature extraction and classification so that nominal process conditions may be uniquely distinguished from off-nominal process conditions at a given instant in time or over a sequential series of instants in time occurring over the duration of the manufacturing process. In other case, it is able to utilize these optical emissions to derive corresponding spectra and identify features within those spectra so that nominal process conditions may be uniquely distinguished from off-nominal process conditions at a given instant in time or over a sequential series of instants in time occurring over the duration of the manufacturing process.

Abstract translation: 教导了一种光学制造过程感测和状态指示系统，其能够利用来自制造过程的光学发射来推断过程的状态。 在一种情况下，能够使用这些光发射来区分两个时间尺度上的热现象，并执行特征提取和分类，使得标称工艺条件可以在给定的时刻或超过标称工艺条件下与非标称工艺条件唯一地区分开 在制造过程的持续时间内发生的时间序列的时间序列。 在其他情况下，它能够利用这些光发射来导出相应的光谱并且识别这些光谱内的特征，使得标称工艺条件可以在给定的时刻或在连续的一系列瞬间上与非标称工艺条件唯一区分开 在制造过程的持续时间内发生。

公开(公告)号：US20150308892A1

公开(公告)日：2015-10-29

申请号：US14790483

申请日：2015-07-02

Applicant: Sichuan University

Inventor： Guoying Feng ,  Ke Yao ,  Hong Zhang ,  Shouhuan Zhou

IPC: G01J3/02 ,  G01J3/28

CPC classification number: G01J3/027 ,  G01J3/0224 ,  G01J3/2889 ,  G01J11/00

Abstract: An impulsive synchronization spectrometer based on adjustable time window, includes a synchronous controller, a pulse light source, a high speed collection card, a computer system, a first photoelectric detector, a second photoelectric detector and a testing optical path system; wherein the synchronous controller has four output terminals. The first output terminal is connected with the pulse light source; and the second output terminal is connected with a computer; the third output terminal and the fourth output terminal are respectively connected with two channels of the high speed collection card and respectively output two-channel signals of a third synchronous signal and a fourth synchronous signal respectively serving as external triggering signals of the two channels to control signals in the two channels of the high speed collection card, the first photoelectric detector and the second photoelectric detector are respectively connected with the two channels of the high speed collection card.

Abstract translation: 基于可调时间窗的脉冲同步光谱仪包括同步控制器，脉冲光源，高速采集卡，计算机系统，第一光电检测器，第二光电检测器和测试光路系统; 其中所述同步控制器具有四个输出端子。 第一个输出端与脉冲光源相连; 并且第二输出端子与计算机连接; 第三输出端子和第四输出端子分别与高速采集卡的两个通道相连，分别输出分别作为两个通道的外部触发信号的第三同步信号和第四同步信号的双通道信号以进行控制 高速采集卡的两个通道中的信号，第一光电检测器和第二光电检测器分别与高速采集卡的两个通道相连。