公开(公告)号：US10151916B2

公开(公告)日：2018-12-11

申请号：US15215626

申请日：2016-07-21

Applicant: OLYMPUS CORPORATION

Inventor： Takeshi Mori ,  Ken Fujinuma

IPC: G02B23/24 ,  A61B1/00 ,  G02B26/10 ,  A61B1/07 ,  H04N5/225 ,  H04N5/235

Abstract: An optical scanning observation apparatus includes a light emission timing controller, a fiber, a driver, a photodetector, an offset processor that corrects an offset value based on an electrical signal output by the photodetector while a light emission timing controller suspends light emission of a light source, and a signal processor that generates an image signal based on the electrical signal for which the offset value was corrected by the offset processor.

公开(公告)号：US20200268234A1

公开(公告)日：2020-08-27

申请号：US15931989

申请日：2020-05-14

Applicant: OLYMPUS CORPORATION

Inventor： Sanae Nakagawa ,  Takeshi Mori

IPC: A61B1/00 ,  H04N5/225 ,  A61B5/00

Abstract: An optical-scanning observation device includes: a light source unit outputting illumination light; a light scanning unit scanning the illumination light; a light detection unit detecting signal light produced at each scan position and generating and outputting a light detection signal based on intensity of the signal light; a power supply unit supplying power to the light detection unit; a determination unit determining, every time the light detection signal is output, whether the intensity of the signal light is equal to or greater than a threshold set on the basis of a current capacity of the power supply unit; and an image generating unit generating an image having a pixel value based on the intensity of the signal light. The image generating unit generates an image having a saturated pixel value in a region determined that the intensity of the signal light is equal to or greater than the threshold.

公开(公告)号：US10151914B2

公开(公告)日：2018-12-11

申请号：US15191801

申请日：2016-06-24

Applicant: OLYMPUS CORPORATION

Inventor： Takeshi Mori ,  Ken Fujinuma

IPC: G02B23/24 ,  G02B23/26 ,  G02B26/10 ,  A61B1/00 ,  A61B1/06 ,  H04N9/07 ,  H04N9/43 ,  H04N9/77

Abstract: An optical scanning observation apparatus includes: a light source selectively emitting a plurality of illumination lights of different colors; a light emission timing controller controlling light emission timing, based on a predetermined ratio of number of light emissions of each color of the illumination light emitted from the light source; a fiber guiding the illumination light from the light source; an actuator vibratory driving the tip part of the fiber; an optical system for irradiating the illumination light emitted from the fiber; an optical detector; and a signal processor.

公开(公告)号：US10025087B2

公开(公告)日：2018-07-17

申请号：US15444895

申请日：2017-02-28

Applicant: OLYMPUS CORPORATION

Inventor： Takeshi Mori

IPC: G02B23/24 ,  A61B1/04 ,  A61B1/07 ,  G02B26/10

Abstract: The optical scanning endoscope apparatus (10) includes: an illumination optical fiber (11) guiding light form lasers (33R, 33G, 33B) and irradiating the light toward an object (100) from an oscillatably-supported tip part of the fiber; an actuator (21) vibratorily driving the tip part of the illumination optical fiber (11); a photodetector (35) detecting light resulting from the object (100) irradiated with the light from the lasers (33R, 33G, 33B) and converting the detected light into an electric signal; a signal processor (37) generating pixel information based on the electric signal output by the photodetector (35); and a light detection controller (31a) controlling a detection property of the photodetector (35) in a period other than an effective detection period.