公开(公告)号：WO2020180392A2

公开(公告)日：2020-09-10

申请号：PCT/US2020/012514

申请日：2020-01-07

Applicant: MASSACHUSETTS INSTITUTE OF TECHNOLOGY ,  WYNN, Charles ,  RACHLIN, Yaron ,  SULLENBERGER, Ryan ,  KAUSHIK, Sumanth

Inventor： WYNN, Charles ,  RACHLIN, Yaron ,  SULLENBERGER, Ryan ,  KAUSHIK, Sumanth

IPC: G01S15/86

Abstract: The ability to communicate with a specific subject at a prescribed location who lacks any communications equipment opens up many intriguing possibilities. Communications across noisy rooms, hail and warn applications, and localized communications directed at only the intended recipient are a few possibilities. We disclose and show localized acoustic communications, which we call photoacoustic communications, with a listener at long standoff distances using a modulated laser transmitted toward the receiver's ear. The optically encoded information is converted into acoustic messages via the photoacoustic effect. The photoacoustic conversion of the optical information into an audible signal occurs via the absorption of the light by ambient water vapor in the near area of the receiver's ear followed by airborne acoustic transmission to the ear. The recipient requires no external communications equipment to receive audible messages.

公开(公告)号：WO2020117245A1

公开(公告)日：2020-06-11

申请号：PCT/US2018/064265

申请日：2018-12-06

Applicant: MASSACHUSETTS INSTITUTE OF TECHNOLOGY ,  MILSTEIN, Adam ,  WYNN, Charles ,  RACHLIN, Yaron ,  SULLENBERGER, Ryan ,  KAUSHIK, Sumanth

Inventor： MILSTEIN, Adam ,  WYNN, Charles ,  RACHLIN, Yaron ,  SULLENBERGER, Ryan ,  KAUSHIK, Sumanth

IPC: A61B5/00 ,  G01J3/28 ,  G01N21/25

Abstract: A hyperspectral imaging system comprising: a first dispersive element to disperse an image moving laterally with respect to an optical axis of the hyperspectral imaging system into N spectral components, a coding mask, in optical communication with the first dispersive element, to encode the N spectral components with a predetermined code, a second dispersive element, in optical communication with the coding mask, to recombine the N spectral components into an encoded image, a detector array, in optical communication with the second dispersive element and having M >/= N detector elements, to detect the encoded image, wherein M and N are positive integers and a processor, operably coupled to the detector array, to form a reconstructed version of the image from the encoded image, the processor configured to estimate the motion blur from the reconstructed version of the image based on the predetermined code.

公开(公告)号：WO2017030652A1

公开(公告)日：2017-02-23

申请号：PCT/US2016/038310

申请日：2016-06-20

Applicant: MASSACHUSETTS INSTITUTE OF TECHNOLOGY

Inventor： JEYS, Thomas, H. ,  HERZOG, William, D. ,  SAAR, Brian, G. ,  STOLYAROV, Alexander, M. ,  SULLENBERGER, Ryan ,  CROMPTON, David ,  REDMOND, Shawm, Michael

IPC: G01N21/17 ,  G01N21/63

CPC classification number: G01J3/433 ,  G01J3/108 ,  G01J3/2823 ,  G01J3/447 ,  G01N21/1717 ,  G01N21/636 ,  G01N2021/1725

Abstract: A device (100), and corresponding method, includes a pump light source (102) configured to be modulated at a pump modulation and to irradiate a target specimen (112). The device also includes a probe light source (106) arranged to generate a speckle pattern (114) from the target specimen, as well as a sensor (110)configured to detect changes in at least one of position and intensity of one or more speckle lobes of the speckle pattern having correlation with the pump modulation. The device and method are used for non-contact monitoring and remote sensing of surfaces, gases, liquids, particles, and other target materials by analyzing speckle pattern changes as a function of pump light irradiation. Advantages can include much higher sensitivity than existing methods; the ability to use visible probe wavelengths for uncooled, low-cost visible detectors with high spatial resolution; and the ability to obtain target material properties without detecting infrared light.

Abstract translation: 一种装置（100）和相应的方法，包括：泵浦光源（102），被配置为在泵浦调制下调制并照射目标样本（112）。 该装置还包括被布置成从目标样本产生散斑图案（114）的探针光源（106）以及被配置为检测一个或多个斑点的位置和强度中的至少一个的变化的传感器（110） 斑点图案的波瓣与泵浦调制相关。 该装置和方法用于通过分析作为泵浦光照射的函数的斑点图案变化来非表面，气体，液体，颗粒和其它目标材料的非接触式监测和远程感测。 优点可以包括比现有方法更高的灵敏度; 将可见探测波长用于具有高空间分辨率的未冷却，低成本可见光探测器的能力; 以及在不检测红外光的情况下获得目标材料性能的能力。

公开(公告)号：EP3338075A1

公开(公告)日：2018-06-27

申请号：EP16747920.3

申请日：2016-06-20

Applicant: Massachusetts Institute of Technology

Inventor： JEYS, Thomas, H. ,  HERZOG, William, D. ,  SAAR, Brian, G. ,  STOLYAROV, Alexander, M. ,  SULLENBERGER, Ryan ,  CROMPTON, David ,  REDMOND, Shawn, Michael

IPC: G01N21/17 ,  G01N21/63

CPC classification number: G01J3/433 ,  G01J3/108 ,  G01J3/2823 ,  G01J3/447 ,  G01N21/1717 ,  G01N21/636 ,  G01N2021/1725

Abstract: A device, and corresponding method, can include a pump light source configured to be modulated at a pump modulation and to irradiate a target specimen. The device can also include a probe light source arranged to generate a speckle pattern from the target specimen, as well as a sensor configured to detect changes in at least one of position and intensity of one or more speckle lobes of the speckle pattern having correlation with the pump modulation. The device and method can be used for non-contact monitoring and remote sensing of surfaces, gases, liquids, particles, and other target materials by analyzing speckle pattern changes as a function of pump light irradiation. Advantages can include much higher sensitivity than existing methods; the ability to use visible probe wavelengths for uncooled, low-cost visible detectors with high spatial resolution; and the ability to obtain target material properties without detecting infrared light.