公开(公告)号：US11119050B2

公开(公告)日：2021-09-14

申请号：US16879531

申请日：2020-05-20

Applicant: KLA Corporation

Inventor： Noam Sapiens ,  Shankar Krishnan ,  David Y. Wang ,  Alexander Buettner ,  Kerstin Purrucker ,  Kevin A. Peterlinz

IPC: G01N21/95 ,  G01B11/06 ,  G01J3/42 ,  G01N21/956 ,  H01L21/66 ,  G01J3/02 ,  G01J3/36 ,  G01J3/10 ,  G01J3/28 ,  G01N21/84 ,  G01N21/21

Abstract: Methods and systems for performing spectroscopic measurements of semiconductor structures including ultraviolet, visible, and infrared wavelengths greater than two micrometers are presented herein. A spectroscopic measurement system includes a combined illumination source including a first illumination source that generates ultraviolet, visible, and near infrared wavelengths (wavelengths less than two micrometers) and a second illumination source that generates mid infrared and long infrared wavelengths (wavelengths of two micrometers and greater). Furthermore, the spectroscopic measurement system includes one or more measurement channels spanning the range of illumination wavelengths employed to perform measurements of semiconductor structures. In some embodiments, the one or more measurement channels simultaneously measure the sample throughout the wavelength range. In some other embodiments, the one or more measurement channels sequentially measure the sample throughout the wavelength range.

公开(公告)号：US11105739B2

公开(公告)日：2021-08-31

申请号：US16740026

申请日：2020-01-10

Applicant: Picomole Inc.

Inventor： Gisia Beydaghyan ,  Christopher Quentin Purves ,  Stephen Douglas Graham ,  Erik Justin Scheme ,  Angkoon Phinyomark

IPC: G01N21/39 ,  G01N33/497 ,  G01N1/40 ,  G01J3/42 ,  G01N21/3504 ,  G01N21/552 ,  G01J3/02 ,  G01N21/31 ,  G01J3/10 ,  G06N20/00 ,  G01N21/77

Abstract: Methods and systems for analyzing a sample and generating a predictive model using cavity ring-down spectroscopy are disclosed. At least part of a sample is loaded in a ring-down cavity. For each of a set of wavelengths, a laser beam is generated and directed into the ring-down cavity. The laser beam entering the ring-down cavity is extinguished. Light intensity decay data for light exiting the ring-down cavity is registered via a light intensity sensor system. A probability is determined from the light intensity decay data for the set of wavelengths that a subject from which the sample was received has a physiological condition or a degree of the physiological condition at least indirectly using a dataset of light intensity decay data for previously analyzed samples for which the presence or the absence of the physiological condition or the degree of the physiological condition have been identified.

公开(公告)号：US11104849B1

公开(公告)日：2021-08-31

申请号：US17155402

申请日：2021-01-22

Applicant: Richard Fauconier

Inventor： Richard Fauconier

IPC: C10G1/00 ,  G01N21/31 ,  G01J3/42

Abstract: One embodiment of a method for restricting laser beams entering an aperture to a chosen dyad and measuring their separation; the method works with frequency-modulated coherent light, and one embodiment uses a moveable, variable-aperture apparatus (FIG. 1) in conjunction with a converging lens (6) and a detector (7); and key elements of other embodiments are also described.

公开(公告)号：US11102400B2

公开(公告)日：2021-08-24

申请号：US16775134

申请日：2020-01-28

Applicant: Cilag GmbH International

Inventor： Joshua D. Talbert ,  Donald M. Wichern

IPC: H04N5/225 ,  A61B1/04 ,  H04N5/232 ,  G01N21/64 ,  G06T7/521 ,  A61B1/00 ,  A61B1/05 ,  H04N5/235 ,  G01J3/28 ,  G06T1/00 ,  G01S7/48 ,  G01S7/483 ,  G01S17/89 ,  G01J3/44 ,  G01J3/12 ,  G01J3/42

Abstract: Pulsed fluorescence imaging in a light deficient environment is disclosed. A system includes an emitter for emitting pulses of electromagnetic radiation and an image sensor comprising a pixel array for sensing reflected electromagnetic radiation. The system includes a controller configured to synchronize timing of the emitter and the image sensor. The system is such that at least a portion of the pulses of electromagnetic radiation emitted by the emitter comprises electromagnetic radiation having a wavelength from about 770 nm to about 790 nm.

公开(公告)号：US20210255039A1

公开(公告)日：2021-08-19

申请号：US17188062

申请日：2021-03-01

Applicant: Ranzy Morgan, III

Inventor： Ranzy Morgan, III

IPC: G01J3/42 ,  G01J3/28 ,  G01N21/59 ,  G01N21/01

Abstract: The present disclosure provides for an apparatus for measuring optical properties of liquid samples. The apparatus includes a sample chamber and a spectrometer optically coupled with the sample chamber. One or multiple sources of electromagnetic radiation are positioned relative to the sample chamber to direct electromagnetic radiation through the sample chamber to measure the color, haze, and/or clarity of the sample. Also provided is a method for measuring optical properties of liquid samples, including inserting a cuvette containing a liquid sample into the sample chamber of the apparatus, and directing electromagnetic radiation from the one or more sources and through the sample to measure the color, haze, and/or clarity of the sample. The apparatus and methods may be used to analyze various samples, such as petroleum-based fluids, including fuels and lubricants.

公开(公告)号：US11092545B2

公开(公告)日：2021-08-17

申请号：US16931621

申请日：2020-07-17

Applicant: The United States of America, as represented by the Secretary of the Navy

Inventor： Kin Chiu Ng ,  Subrata Sanyal

IPC: G01N21/00 ,  G01N21/39 ,  G01J3/28 ,  G01J3/42

Abstract: The present invention relates to the design, construction, and operation for a diode-turret. Exemplary embodiments comprise several tens of laser diodes to function as a multiple-line radiation source. The invention further describes the construction for a socket-turret; this socket-turret will flexibly fit any numbers (limited only by the number of sockets available) of laser diodes. The invention further describes two radiation coupling-optics for the output from the turret of laser-diodes, one with an integrating sphere and another with a collimating scope. One operation method allows its user to set for any number of diode, functioning one diode at a time, sequentially, hopping from one diode to another, as a single-line radiation source for the spectrometry. Another operation method permits its user to set a group with any number of diodes, functioning several diodes simultaneously at a time, as a multiple-line radiation source for spectrometry.

公开(公告)号：US11073423B2

公开(公告)日：2021-07-27

申请号：US16583042

申请日：2019-09-25

Applicant: Flying Gybe Inc.

Inventor： Nicholas Tufillaro ,  Ivan Lalovic ,  Omar Zurita

IPC: G01J3/28 ,  G01J3/02 ,  G01J3/40 ,  G01J3/433 ,  G01J3/18 ,  G01J3/06 ,  G01J3/04 ,  G01J3/42

Abstract: A hyperspectral sensing device may include an optical collector configured to collect light and to transfer the collected light to a sensor having spectral resolution sufficient for sensing hyperspectral data. In some examples, the sensor comprises a compact spectrometer. The device further comprises a power supply, an electronics module, and an input/output hub enabling the device to transmit acquired data (e.g., to a remote server). In some examples, a plurality of hyperspectral sensing devices are deployed as a network to acquire data over a relatively large area. Methods are disclosed for performing dark-current calibration and/or radiometric calibration on data obtained by the hyperspectral sensing device, and/or another suitable device. Data obtained by the device may be represented in a functional basis space, enabling computations that utilize all of the hyperspectral data without loss of information.

公开(公告)号：US20210190991A1

公开(公告)日：2021-06-24

申请号：US17249595

申请日：2021-03-05

Applicant: View, Inc.

Inventor： Trevor Frank ,  Alexander Rumer ,  Brandon Tinianov ,  James Fox ,  Douglas S. Silkwood ,  Erich R. Klawuhn

IPC: G01W1/12 ,  G01J5/00 ,  G01J1/16 ,  G01J3/42 ,  G01W1/02

Abstract: Certain aspects pertain to a cloud detector comprising a first detector module directed to a first region of the sky and a second detector module directed to a second region of the sky. Each detector module has a tube enclosing one or more sensing elements. The one or more sensing elements of the first detector module are configured to take weather condition readings from the first region of the sky. The one or more sensing elements of the second detector module are configured to take weather condition readings from the second region of the sky. In one aspect, the cloud detector is configured to detect cloud cover based on these weather condition readings. In some cases, the one or more sensing elements comprise an infrared radiation detector (e.g., thermopile) for measuring infrared radiation intensity and a photosensor element for measuring sunlight intensity.

公开(公告)号：US20210181175A1

公开(公告)日：2021-06-17

申请号：US17181887

申请日：2021-02-22

Applicant: Omni Medsci, Inc.

Inventor： Mohammed N. ISLAM

IPC: G01N33/15 ,  G01N21/3504 ,  G01N21/359 ,  G01J3/02 ,  G01J3/42 ,  A61B5/00 ,  A61B5/145 ,  A61B5/1455 ,  G01J3/10 ,  G01J3/28 ,  G01J3/453 ,  G01N21/3563 ,  G01N21/39 ,  G01N21/88 ,  G01N33/02 ,  G01N33/44 ,  G01N33/49

Abstract: A measurement system is provided with an array of laser diodes to generate light having one or more optical wavelengths. A detection system is provided with at least one photo-detector, a lens and a spectral filter at an input to the at least one photo-detector. The measurement system is further configured to transmit at least a portion of the output signal, indicative of an output status, to a cloud service over a transmission link. The cloud service is configured to receive the output status, to generate processed data based on the received output status, and to store the processed data, and wherein the cloud service is capable of storing a history of at least a portion of the received output status over a specified period of time.

公开(公告)号：US11029509B2

公开(公告)日：2021-06-08

申请号：US16788602

申请日：2020-02-12

Applicant: Seiko Epson Corporation

Inventor： Tomonori Matsushita ,  Nozomu Hirokubo

IPC: G02B26/00 ,  G01J3/28 ,  G01J3/26 ,  G01J3/02 ,  G01J3/06 ,  G01J3/10 ,  G01J3/32 ,  G01J3/42 ,  G01J3/50

Abstract: An optical module includes a wavelength variable interference filter having a fixed reflective film, a movable reflective film which faces the fixed reflective film with a gap between reflective films interposed therebetween, and an electrostatic actuator that changes the gap between reflective films, and a gap control unit that controls the electrostatic actuator. The gap control unit controls the electrostatic actuator on the basis of an order which is set in accordance with a wavelength to be measured, and changes the gap between the reflective films.