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公开(公告)号：US11346721B2
公开(公告)日：2022-05-31
申请号：US16924278
申请日：2020-07-09
Applicant: Robert Bosch GmbH
Inventor： Christoph Daniel Kraemmer , Maximilian Busch , Michael Kutschbach , Reinhold Roedel
Abstract: An interferometer device includes an interferometer unit with at least two mirrors disposed in parallel, wherein at least one of the mirrors is actuatable parallel to the other mirror and a first distance between the two mirrors is alterable. The interferometer device further includes at least one deflection mirror disposed downstream of the interferometer unit in a light transmission direction of light from the interferometer unit and a detector device, onto which the light is able to be aligned by the deflection mirror. The detector device includes at least two differently sensitive detection regions for transmitted wavelengths or wavelength ranges of the light, which detection regions are spatially separated from one another and able to be irradiated separately by the deflection mirror.
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公开(公告)号：US20220018712A1
公开(公告)日：2022-01-20
申请号：US17296282
申请日：2019-11-22
Applicant: Leica Microsystems Inc.
Inventor： Robert H. Hart , Peter Strobel
Abstract: Spectrometer systems are provided including a detector array; an imaging lens assembly coupled to the detector array, the imaging lens assembly including a first element of positive optical power followed by a second element of negative optical power and a positive optical power element split into two opposing identical singlets; a dispersive element coupled to the imaging lens assembly; and a fixed focus collimator assembly coupled to the dispersive element. Related imaging lens assemblies and collimator assemblies are also provided.
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公开(公告)号：US20220011090A1
公开(公告)日：2022-01-13
申请号：US17294221
申请日：2019-11-13
Applicant: NOKIA TECHNOLOGIES OY
Inventor： Xin YUAN , Paul WILFORD
Abstract: Apparatus and method for detecting light, the apparatus comprising: means for splitting an input beam of light, which is obtained from an optical coherence tomography arrangement into at least a first and a second beam of light; means for modulating the first beam of light to provide a first modulated beam of light and means for modulating the second beam of light to provide a second modulated beam of light; means for dispersing the first modulated beam of light to provide a first dispersed beam of light and means for dispersing the second modulated beam of light to provide a second dispersed beam of light; means for detecting the first dispersed beam of light and means for detecting the second dispersed beam of light, the means for detecting being configured to convert the detected beams of light into electrical output signals.
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公开(公告)号：US11209260B2
公开(公告)日：2021-12-28
申请号：US16625686
申请日：2018-07-06
Applicant: HAMAMATSU PHOTONICS K.K.
Inventor： Tomofumi Suzuki , Kyosuke Kotani , Tatsuya Sugimoto , Yutaka Kuramoto
IPC: G01B9/02 , B81B3/00 , G01J3/02 , G01J3/10 , G01J3/14 , G01J3/45 , G02B7/182 , G02B26/08 , G02B27/14 , G01J3/453
Abstract: An optical module 1 includes: a mirror unit 2 including a base 21, a movable mirror 22, and a fixed mirror 16; a beam splitter unit 3 that is disposed on one side of the mirror unit 2 in a Z-axis direction; a light incident unit 4 that causes measurement light L0 to be incident to the beam splitter unit 3; a first light detector 6 that is disposed on the one side of the beam splitter unit 3 in the Z-axis direction, and detects interference light L1 of measurement light which is emitted from the beam splitter unit 3; a support 9 to which the mirror unit 2 is attached; a first support structure 11 that supports the beam splitter unit 3; and a second support structure 12 that is attached to the support 9 and supports the first light detector 6.
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公开(公告)号：US11187652B2
公开(公告)日：2021-11-30
申请号：US17050650
申请日：2018-04-27
Inventor： Hatice Altug Yanik , Andreas Tittl , Aleksandrs Leitis
Abstract: A method of investigating a sample (1) having an absorption within an infrared spectral range of interest, comprises the steps of creating measuring light (2) with a light source device (10), wherein the measuring light (2) includes wavelengths covering the infrared spectral range, directing the measuring light (2) through the sample (1) to a detector device (20) with a plurality of detector units (21), each of which comprising an infrared sensitive sensor section (22) and an associated metamaterial resonator section (23) having a specific spectral resonance line (3), wherein the spectral resonance lines (3) of the resonator sections (23) have different frequencies within the infrared spectral range, wherein the measuring light (2) is transmitted through the sample (1) to the resonator sections (23) and subsequently sensed by the sensor sections (22), wherein an output of each of the sensor sections (22) depends on the absorption of the sample (1) at the frequency of the spectral resonance line (3) of the associated resonator section (23), and providing at least one absorption characteristic of the sample (1) on the basis of the output of the sensor sections (22), wherein the sample (1) is arranged for providing near field coupling of electronic states of the sample (1) and photonic resonator states of the resonator sections (23), wherein, for each of the resonator sections (23), a resonance line attenuation is created, which is determined by a complex refractive index of the sample (1) at the frequency of the spectral resonance line (3) of the resonator section (23), and the output of each of the sensor sections (22) is determined by the resonance line attenuation of the associated resonator section (23). Furthermore, a spectrometer apparatus (100) for investigating a sample (1) is described, which has an absorption within an infrared spectral range of interest.
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Patent Agency Ranking
公开(公告)号：US11187579B2
公开(公告)日：2021-11-30
申请号：US16619630
申请日：2018-07-06
Applicant: HAMAMATSU PHOTONICS K.K.
Inventor： Tomofumi Suzuki , Kyosuke Kotani , Tatsuya Sugimoto
IPC: G02B26/08 , G01J3/14 , B81B3/00 , G01J3/02 , G01J3/10 , G01J3/45 , G01B9/02 , G02B7/182 , G02B27/14 , G01J3/453
Abstract: In an optical device, an elastic support unit includes a pair of levers which face in a second direction perpendicular to a first direction, a pair of first torsion support portions which are connected between the levers and the base, a pair of second torsion support portions which are connected between the pair of levers and the movable unit, and a first link member that bridges the levers. The levers and the first link member define a light passage opening. Each of connection positions between the levers and the first torsion support portions is located on a side opposite to the movable unit with respect to the center of the light passage opening in a third direction perpendicular to the first direction and the second direction. A maximum width of the light passage opening in the second direction is defined by a gap between the levers in the second direction.
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公开(公告)号：US20210333149A1
公开(公告)日：2021-10-28
申请号：US17240950
申请日：2021-04-26
Abstract: The present disclosure relates to a common-path cube-corner retroreflector interferometer with a large optical path difference and high stability, and an interference technique thereof. The interferometer adopts an asymmetric common-path beam splitting structure using right-angled cube-corner retroreflectors, comprising a semi-transmissive and semi-reflective beam splitter, a plane mirror, a first right-angled cube-corner retroreflector, a second right-angled cube-corner retroreflector and an optical path difference element. The incident light is divided into a first transmitted beam and a second reflected beam, which are respectively reflected by the plane mirror and the right-angled cube-corner retroreflectors several times and then split again, two beams of which become interference outputs along directions perpendicular to an incident direction of the incident light, and the other two beams become interference outputs along directions parallel to the incident light. The present disclosure also provides an interference technique based on the interferometer described above.
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公开(公告)号：US20210302232A1
公开(公告)日：2021-09-30
申请号：US17154909
申请日：2021-01-21
Applicant: VERIFOOD, LTD.
Inventor： Damian GOLDRING , Dror SHARON , Guy BRODETZKI , Amit RUF , Menahem KAPLAN , Sagee ROSEN , Omer KEILAF , Uri KINROT , Kai ENGELHARDT , Ittai NIR
IPC: G01J3/10 , G01J3/02 , G01N21/25 , G01J3/12 , G01J3/28 , G01J3/36 , G01J5/02 , G01J5/10 , G01N33/02 , G01J3/26 , G01J3/45
Abstract: A spectrometer comprises a plurality of isolated optical channels comprising a plurality of isolated optical paths. The isolated optical paths decrease cross-talk among the optical paths and allow the spectrometer to have a decreased length with increased resolution. In many embodiments, the isolated optical paths comprise isolated parallel optical paths that allow the length of the device to be decreased substantially. In many embodiments, each isolated optical path extends from a filter of a filter array, through a lens of a lens array, through a channel of a support array, to a region of a sensor array. Each region of the sensor array comprises a plurality of sensor elements in which a location of the sensor element corresponds to the wavelength of light received based on an angle of light received at the location, the focal length of the lens and the central wavelength of the filter.
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公开(公告)号：US11125753B2
公开(公告)日：2021-09-21
申请号：US15934538
申请日：2018-03-23
Applicant: TruTag Technologies, Inc.
Inventor： Hod Finkelstein , Timothy Learmonth
IPC: G01J3/00 , G01N21/45 , G01J3/45 , G01N21/63 , G01N33/58 , C12Q1/6876 , G01N21/77 , C12Q1/6816 , G01N21/84 , G01J3/26 , G01N21/31
Abstract: A system detects an analyte suspected of being present in a sample. The reader reads an optical tag on a substrate, which is configured to immobilize the tag on a substrate surface. The optical tag is bound to a probe and includes a plurality of pores that create an effective index of refraction. The plurality of pores and a thickness of the tag are selected for a reflectance property. The substrate is configured to contact a sample suspected of comprising an analyte. The probe is capable of binding specifically to the analyte. The reader is configured to expose the tag to light to generate a sample spectral signature that is a function of the effective index of refraction, the thickness of the optical tag, and whether the analyte is coupled to the probe. The sample spectral signature is compared to a reference to detect the analyte in the sample.
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公开(公告)号：US20210231495A1
公开(公告)日：2021-07-29
申请号：US17056225
申请日：2019-05-17
Applicant: THE REGENTS OF THE UNIVERSITY OF MICHIGAN
Inventor： Steven T. CUNDIFF , Chris SMALLWOOD , Eric MARTIN
Abstract: A method is presented for determining path length fluctuations in an interferometer using a reference laser with an arbitrary frequency with respect to the measured light. The method includes: injecting reference light along signal paths of the interferometer; measuring interference between the reference light at an output of the interferometer; determining an optical phase difference between the reference light in the two signal paths of the interferometer by measuring intensity modulation of the interference between the reference light and subtracting an intended frequency modulation from the measured intensity modulation; accumulating an unwrapped phase difference between the reference light in the two signal paths of the interferometer, where the unwrapped phase difference is defined in relation to a reference; and determining path length fluctuation of light in the interferometer using the unwrapped phase difference.
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