Sony Corporation

Tohoku University

Sony Group Corporation

Tomoyuki Oki

Rintaro Koda

Takahiro Arakida

Yuji Masui

Hiroyuki Yokoyama

Yoshinori Yamauchi

Hideki Watanabe

Masaru Kuramoto

Takao Miyajima

Masao Ikeda

Shunsuke Kono

Naoki Jogan

Akio Furukawa

Hirotaka Muramatsu

Kayoko Kikuchi

Satoshi Taniguchi

Nobuhiro Suzuki

Mitsunori Ueda

Satoshi Nagae

Norihiko Yamaguchi

Masayoshi Akita

Zenya Nagashima

Shiho Hakomori

Chiyomi Uchiyama

Yuichi Takahashi

Osamu Maeda

Koshi Tamamura

Terukazu Naruse

Tetsuaki Iwane

Kazunori Kihara

Tomoya Sugahara

To generate light with high color rendering properties while suppressing an occurrence of unevenness. The present disclosure provides a medical system () including: a medical device () provided with an imaging unit configured to image an observation object; and a light source apparatus () configured to generate light to irradiate the observation object, wherein the light source apparatus has: a narrow-band light source () configured to emit narrow-band light of which a wavelength width is a narrow band; a wide-band light source () configured to emit wide-band light of which the wavelength width is wider than the narrow-band light; a combining unit () configured to combine the narrow-band light and the wide-band light; and an emission angle converting unit () configured to convert an emission angle of the narrow-band light.

Medical system, medical light source apparatus, and method in medical light source apparatus

A medical observation system for observing a biological object includes a medical light source apparatus for illuminating the biological object. The medical light source apparatus includes a first, second and third laser light sources that emit respective first, second, and third laser light beams. First and second laser light beams have different wavelength bands. The medical light source apparatus also includes an optical assembly including a reflecting surface disposed to reflect the first laser light beam, cause the second laser light beam to be transmitted therethrough, and guide the first laser light beam and the second laser light beam in a same direction. The medical light source apparatus also includes a reflection mirror having a reflecting surface that is not parallel with the reflecting surface of the optical assembly. The system includes a medical observation device including a detector for detecting a light received from the biological object.

Microscope system and medical light source apparatus

A light-emitting element includes a mesa structure in which a first compound semiconductor layer of a first conductivity type, an active layer, and a second compound semiconductor layer of a second conductivity type are disposed in that order, wherein at least one of the first compound semiconductor layer and the second compound semiconductor layer has a current constriction region surrounded by an insulation region extending inward from a sidewall portion of the mesa structure; a wall structure disposed so as to surround the mesa structure; at least one bridge structure connecting the mesa structure and the wall structure, the wall structure and the bridge structure each having the same layer structure as the portion of the mesa structure in which the insulation region is provided; a first electrode; and a second electrode disposed on a top face of the wall structure.

Light-emitting element and method for manufacturing the same

An image acquisition system includes: a first narrowband light source that emits first narrowband light for exciting a luminescent agent that exists in an observation target and emits light having a wavelength belonging to a visible light wavelength band; a second narrowband light source that emits second narrowband light in a wavelength band of &#xb1;30 nm of a peak light emission wavelength of the luminescent agent; a broadband light source that emits broadband light for illuminating the observation target; a first image sensor on which an image of light in a light emission wavelength band including a wavelength corresponding to light emitted from the luminescent agent is formed; and a second image sensor including one or more image sensors on which an image of light in a wavelength band other than the light emission wavelength band is formed.

Image acquisition system and image acquisition method

To enable calculation a wavelength shift amount more accurately. A light source system is provided including a light source unit configured to emit a light beam, and a calculation unit configured to calculate a wavelength shift amount of the light beam on the basis of an output from a color sensor that detects the light beam.

Light source system, control device, and control method

A light source device includes a light source unit with at least one set of light sources, wherein each of the at least one set of light sources emits a light of a predetermined wavelength band; an optical waveguide unit that multiplexes light from the at least one set of light sources; and an incident unit, wherein on an incident surface of the incident unit, with an optical axis on the incident unit as a reference position, an installation state of each light source is adjusted such that the maximum separation distances are set equal to each other from the reference position to a maximum incident angle of an incident position of the respective light from the at least one set of light sources incident on the incident unit.

Light source device, light source control method, and image acquisition system

[Object] To provide a light source device and imaging system capable of issuing a warning to a user in accordance with an actual deterioration state of a light source. [Solution] The light source device includes: at least one light source; a light monitor unit that detects emitted light emitted from the light source; a light source drive unit that controls a drive current or an applied voltage of the light source such that a detection value detected by the light monitor unit indicates a predetermined target value; and a warning unit that performs a primary warning when the drive current or the applied voltage of the light source reaches a predetermined reference value, and performs a predetermined process on a basis of a deterioration level of the light source after the primary warning is performed.

Light source device and imaging system

An endoscope apparatus includes: an endoscope at least a part of which is inserted into an observation object and that propagates an image of an inside of the observation object irradiated with illumination light; a light source that emits the illumination light illuminating the inside of the observation object to the endoscope; an imager that captures an image of the inside of the observation object having been propagated from the endoscope and generates a captured image of the inside of the observation object; and control circuitry that performs driving control for the endoscope, the light source, and the imager. The control circuitry is configured to change the radiation angle of the illumination light in accordance with whether an insertion portion being a part of the endoscope is moving in the inside of the observation object or as stopped.

Endoscope apparatus and control method of endoscope apparatus

Provided is a medical light source device that includes a light source part including two or more semiconductor light-emitting devices having wavelengths of emitted light different from each other. The light source part generates light of predetermined chromaticity by mixing the light emitted from each of the semiconductor light-emitting devices and emits outward the generated light of the chromaticity as illumination light. The medical light source device further includes a control unit that controls a mixing rate of the light emitted from each of the semiconductor light-emitting devices based on a light amount setting value of the illumination light emitted from the light source part, and keeps the chromaticity constant regardless of a light amount of the illumination light.

Medical light source system, medical light source device, and method of adjusting light amount of medical light source device

It is enabled to more appropriately prevent thermal damage to an area irradiated with illumination light. An image acquisition system is provided including: a first light source unit that emits narrow band light having a peak intensity in a specific band; a second light source unit that emits wide band light having a band wider than the specific band; a generation unit that generates multiplexed light by using the narrow band light and the wide band light; an imaging unit that images an irradiation target of the multiplexed light; a prediction unit that performs prediction of a temperature of an area irradiated with the multiplexed light in the irradiation target; and a control unit that performs control of outputs of the narrow band light and the wide band light on the basis of the prediction.

Image acquisition system, image acquisition method, control device, and control method

An illuminating device includes an image acquisition system configured to adjust a plurality of light sources on the basis of a correlation between luminance acquired from an image processing device and the light amounts of the emission light beams. Accordingly, the color temperature of the image processing device can be accurately adjusted because the illuminating device can control the plurality of light sources by individual adjustment to output a desired light.

Controlling a set of light sources by individual adjustment to output a desired light

A light source apparatus according to an embodiment of the present technology includes a plurality of light source portions, a plurality of temperature adjustment units, and a drive control unit. The plurality of temperature adjustment units are capable of respectively adjusting temperatures of the plurality of light source portions. The drive control unit is capable of controlling a drive timing of each of the plurality of temperature adjustment units.

Light source apparatus and temperature control method

Light source control system and light source control method

The present invention provides a semiconductor device realizing reduced occurrence of a defect such as a crack at the time of adhering elements to each other. The semiconductor device includes a first element and a second element adhered to each other. At least one of the first and second elements has a pressure relaxation layer on the side facing the other of the first and second elements, and the pressure relaxation layer includes a semiconductor part having a projection/recess part including a projection projected toward the other element, and a resin part filled in a recess in the projection/recess part.

Growing community of inventors

Kanagawa, Japan

Tomoyuki Oki