Endoscopic system with speckle reduction unit

    公开(公告)号:US10542865B2

    公开(公告)日:2020-01-28

    申请号:US15146934

    申请日:2016-05-05

    Abstract: An endoscopic system includes a speckle reduction unit which is reduce speckle generated on an observed portion by light that has coherence, a controller which controls an operation of the speckle reduction unit and a plurality of observation modes including a speckle observation mode of observing the observed portion based on the speckle generated on the observed portion by the light. The controller controls the operation of the speckle reduction unit in accordance with the observation modes such that the speckle reduction unit does not reduce the speckle in the speckle observation mode and the speckle reduction unit reduces the speckle in the observation modes other than the speckle observation mode.

    Endoscope apparatus
    23.
    发明授权

    公开(公告)号:US10368728B2

    公开(公告)日:2019-08-06

    申请号:US15334887

    申请日:2016-10-26

    Abstract: The endoscope apparatus includes a light exit that radiates an illumination light constituted by narrow-band lights to an observation target, an image sensor that detects a reflected/scattered light from the observation target to output an imaging signal, and an image processing circuit that processes the imaging signal. The image processing circuit includes an estimator that associates, regarding each color sensitivity region of the image sensor, a peak wavelength of the narrow-band light with the intensity of the reflected/scattered light to derive narrow-band light spectral intensity information, estimating wavelength lacking region spectral intensity information, and a processor that performs wavelength lacking region correction processing on the basis of the narrow-band light spectral intensity information and the wavelength lacking region spectral intensity information so that the image signal will be closer to an image signal obtained when an illumination light having no wavelength lacking regions is applied.

    Light source apparatus
    24.
    发明授权

    公开(公告)号:US10314468B2

    公开(公告)日:2019-06-11

    申请号:US15614751

    申请日:2017-06-06

    Abstract: A light source apparatus, capable of supplying white light including a predetermined wavelength band and a special light, which is light including the predetermined wavelength band and narrower in a band than the white light, includes: a first light source configured to emit light in a first wavelength band including the predetermined wavelength band, a second light source configured to emit light in a second wavelength band including the predetermined wavelength band, and a dichroic mirror configured to selectively transmit light in the predetermined wavelength band from one light of the lights in the first and second wavelength bands, selectively reflect light in a third wavelength band other than the predetermined wavelength band from the other light of the lights in the first and second wavelength bands, and mix and emit the light in the predetermined wavelength band and the light in the third wavelength band.

    LIGHT SOURCE DEVICE
    27.
    发明申请
    LIGHT SOURCE DEVICE 有权
    光源设备

    公开(公告)号:US20150335232A1

    公开(公告)日:2015-11-26

    申请号:US14820003

    申请日:2015-08-06

    Abstract: A light source device to illuminate a target to be imaged by an imaging unit which includes N kinds of light detection elements which wavelength sensitivity regions are different each other includes a light source section, an insertion portion, an illumination light emitting portion and a light guide member. The light source section emits M kinds of narrow-band light which have different peak wavelengths, a difference between the peak wavelengths being equal to or more than an effective wavelength gap. The insertion portion is configured to be inserted into an internal space of an object. The illumination light emitting portion is provided in the insertion portion and which emits an illumination light. The light guide member guides the narrow-band light emitted from the light source section to the illumination light emitting portion.

    Abstract translation: 一种光源装置,其通过包含波长灵敏度区域彼此不同的N种光检测元件的成像单元照射要成像的目标物包括光源部,插入部,照明发光部和导光体 会员。 光源部分发射具有不同峰值波长的M种窄带光,峰值波长之间的差等于或大于有效波长间隙。 插入部被配置为插入到物体的内部空间中。 照明光发射部分设置在插入部分中并且发射照明光。 导光部件将从光源部射出的窄带光引导到照明光发射部。

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