公开(公告)号：US20190004302A1

公开(公告)日：2019-01-03

申请号：US16102840

申请日：2018-08-14

Applicant: OLYMPUS CORPORATION

Inventor： Kentaro IMOTO ,  Ryusuke TANAKA ,  Hidenori TSUBOI

IPC: G02B21/00 ,  G01N21/64

Abstract: Provided is an image-acquisition apparatus including: a scanning portion that scans illumination light emitted from a light source; an optical system that focuses the scanned illumination light on a sample, while collecting signal light beams generated at the individual scanning positions on the sample; a detector that detects the collected signal light beams and that generates detection signals thereof; a signal controller that is configured to generate periodic signals that are repeated at a predetermined period; a light controller that is configured to temporally control a position or an intensity of the illumination light in accordance with the generated periodic signals; and a computer that is configured to process, in accordance with the generated periodic signals, the detection signals generated, wherein the computer is provided with a frequency shifter for shifting frequencies of the detection signals, and an integrator that integrates the shifted detection signals at an integration time.

公开(公告)号：US20230041402A1

公开(公告)日：2023-02-09

申请号：US17971837

申请日：2022-10-24

Applicant: OLYMPUS CORPORATION

Inventor： Hidenori TSUBOI

IPC: A61B8/12 ,  B06B1/02 ,  B06B1/06

Abstract: An ultrasound imaging device includes: a first transmitter configured to transmit a transmission signal to at least one piezoelectric element; a receiver configured to receive a reception signal from the at least one piezoelectric element; a second transmitter configured to transmit a given signal to the at least one piezoelectric element; a timing controller configured to control a transmitting timing at which the first transmitter transmits the transmission signal and a receiving timing at which the receiver receives the reception signal; and a signal controller configured to cause the second transmitter to transmit the given signal to a first area to which the first transmitter does not transmit the transmission signal at the transmitting timing or cause the second transmitter to transmit the given signal to a second area from which the receiver does not receive the reception signal at the receiving timing.

公开(公告)号：US20210330179A1

公开(公告)日：2021-10-28

申请号：US17367825

申请日：2021-07-06

Applicant: OLYMPUS CORPORATION

Inventor： Hidenori TSUBOI

IPC: A61B1/018 ,  A61B8/08 ,  A61B8/00

Abstract: An endoscope system includes: an ultrasound transducer configured to output an electrical signal by receiving an ultrasound wave; an ultrasound observation apparatus configured to generate an ultrasound image based on a signal in a specific frequency band included in the electrical signal; a light source configured to supply illumination light to irradiate an inside of a subject; a light guide configured to guide the illumination light into the subject and scan an irradiation position of the illumination light into the subject along a specific trajectory according to an input drive signal; a driver configured to output the drive signal to the light guide; and a processor configured to control an operation of the driver to output the drive signal having a drive center frequency outside the specific frequency band to the light guide.

公开(公告)号：US20170363848A1

公开(公告)日：2017-12-21

申请号：US15608342

申请日：2017-05-30

Applicant: OLYMPUS CORPORATION

Inventor： Hidenori TSUBOI

IPC: G02B21/00

CPC classification number: G02B21/0032 ,  G01N21/6458 ,  G02B21/0044 ,  G02B21/008 ,  G02B21/365

Abstract: Provided is a scanning microscope including a pinhole array disk having a plurality of pinholes restricting a light flux of illumination light for irradiating a sample, the plurality of pinholes being disposed so as to form an array about a center axis; a rotational driving unit rotating the pinhole array disk about the center axis; an objective lens irradiating the sample with the illumination light that has passed through the pinholes and collecting fluorescence from the sample to cause the fluorescence to enter the pinholes; a camera acquiring an image of the sample by repeatedly capturing the fluorescence that has passed through the pinholes; and a stimulation optical system irradiating the sample with stimulation light, wherein the system includes a stimulation-timing generating unit decreasing the intensity of the stimulation light during exposure periods of the camera and increasing the intensity of the stimulation light during periods between exposure periods.