Endoscope output signal control device and endoscope apparatus making
use of the same
    3.
    发明授权
    Endoscope output signal control device and endoscope apparatus making use of the same 失效
    使用内窥镜输出信号控制装置和内窥镜装置

    公开(公告)号:US4928172A

    公开(公告)日:1990-05-22

    申请号:US244777

    申请日:1988-09-15

    IPC分类号: A61B1/05 H04N5/225 H04N5/235

    摘要: An endoscope using a solid state imaging device characterized by comprising a solid state imaging device capable of imaging an object image, a light emitting means giving an illuminating light to said object, a first level detecting means fed with a video signal from said solid state imaging device and detecting the level of this signal, a first level comparing means comparing the detected level of this detecting means and a preset first reference level with each other and outputting a first control signal corresponding to the level difference, a light adjusting means fed with this first control signal and adjusting the illuminating light from said light emitting means on the basis of this signal, a gain variable amplifying means taking in the video signal from the detecting end in said first level detecting means and amplifying it, a second level detecting means detecting the level of the signal from this amplifying means and a circuit means comparing the detected level of this detecting means and a preset second reference level with each other, forming a second control signal corresponding to the level difference and making this signal a gain controlling signal to said amplifying means.

    摘要翻译: 一种使用固态成像装置的内窥镜,其特征在于,包括能够对被摄体图像进行成像的固态成像装置,向所述被摄体赋予照明光的发光装置,具有来自所述固态摄像机的视频信号的第一电平检测装置 装置并检测该信号的电平;第一电平比较装置,将检测装置的检测电平与预先设定的第一参考电平进行比较,并输出对应于电平差的第一控制信号;馈送该电平差的光调节装置 第一控制信号,并且基于该信号调整来自所述发光装置的照明光;增益可变放大装置,从所述第一电平检测装置中的检测端接收视频信号并对其进行放大;第二电平检测装置检测 来自该放大装置的信号的电平和比较检测到的该检测电平的电路装置 形成与所述电平差对应的第二控制信号,并使所述信号成为所述放大装置的增益控制信号。

    Endoscope automatic light control apparatus and endoscope apparatus
making use of the same
    7.
    发明授权
    Endoscope automatic light control apparatus and endoscope apparatus making use of the same 失效
    内窥镜自动照明控制装置及使用其的内窥镜装置

    公开(公告)号:US4967269A

    公开(公告)日:1990-10-30

    申请号:US343718

    申请日:1989-04-27

    摘要: An endoscope automatic light control apparatus comprises an automatic light control apparatus for controlling the quantity of light incident to an imaging apparatus for imaging an endoscopic image so as to maintain a signal from the imaging apparatus substantially at a constant level. An automatic gaim control apparatus inputs a signal from the imaging apparatus and controls its output level so as to maintain the signal substantially at a constant level. The automatic light control apparatus and the automatic gain control apparatus respectively having a plurality of brightness information generating apparatuses generating brightness information based on the signal from the imaging apparatus. The plurality of brightness information generating apparatuses are different from each other in a method of generating brightness information and one of the plurality of brightness information generating apparatuses able to be selected. A selecting apparatus selects the brightness generating apparatus of the same method as the automatic light control apparatus and as the automatic gain control apparatus. The automatic light control apparatus controls the quantity of light based on the brightness information and the automatic gain control apparatus controls its output level based on the brightness information. The endoscope apparatus further comprises an endoscope unit having an insert section with an observation window and an image forming optical system, an imaging apparatus, a signal processing apparatus and an illuminating system.

    摘要翻译: 一种内窥镜自动照明光控制装置,包括:自动光控制装置,用于控制入射到成像装置的光量,用于对内窥镜图像进行成像,以便将来自成像装置的信号基本保持在恒定水平。 自动发射控制装置输入来自成像装置的信号并控制其输出电平,以便将信号保持在恒定水平。 所述自动光控制装置和所述自动增益控制装置分别具有基于来自所述摄像装置的信号生成亮度信息的多个亮度信息生成装置。 多个亮度信息生成装置在生成亮度信息的方法和能够选择的多个亮度信息生成装置中的一个之间彼此不同。 选择装置选择与自动光控制装置和自动增益控制装置相同的方法的亮度生成装置。 自动光控制装置基于亮度信息来控制光量,并且自动增益控制装置基于亮度信息来控制其输出电平。 所述内窥镜装置还具备:内窥镜单元,具有具有观察窗的插入部和图像形成用光学系统,成像装置,信号处理装置以及照明系统。

    Electronic endoscope whereby the position of the insertable part can be
known by a transmitted light outside a body
    8.
    发明授权
    Electronic endoscope whereby the position of the insertable part can be known by a transmitted light outside a body 失效
    电子内窥镜,其中通过身体外的透射光可以知道可插入部分的位置

    公开(公告)号:US4959710A

    公开(公告)日:1990-09-25

    申请号:US311541

    申请日:1989-02-16

    摘要: An electronic endoscope apparatus whereby the position of the tip part of an insertable part inserted into a body cavity is confirmed from outside the body with the transmission out of the body from within the body cavity of a light emitted from an illuminating window provided in the tip part. It comprises an imaging apparatus for creating an image of an inspected part obtained from an observing window provided in the tip part of the insertable part and for converting this image to an electric signal and outputting it, an illuminating apparatus for feeding an illuminating light to the imaging apparatus and for adjusting the brightness of the illuminating light when a confirming signal directing to confirm the position of the tip part of the insertable part is input, a signal processing apparatus for processing the electric signal obtained from the imaging apparatus, outputting a video signal which is a normal observing picture image signal of a moving picture in case the confirming signal is not input and outputting a video signal which is a picture image signal different from the ordinary observing picture image signal in case the confirming signal is input, and a displaying apparatus for receiving the video signal output by the signal processing apparatus and displaying the picture image of the inspected part.

    摘要翻译: 一种电子内窥镜装置,其中从身体外部确认插入到体腔中的可插入部分的末端部分的位置,其中从身体内的透射体从设置在尖端中的照明窗口发出的光的体腔内 部分。 它包括一个成像装置,用于产生从设置在可插入部分的顶端部分的观察窗口获得的被检查部分的图像,并将该图像转换成电信号并将其输出;照明装置,用于将照明光馈送到 成像装置,并且当输入指示确认可插入部分的末端部分的位置的确认信号时,调节照明光的亮度;信号处理装置,用于处理从成像装置获得的电信号,输出视频信号 在确认信号未被输入的情况下,其是运动图像的正常观察图像信号,并且在输入确认信号的情况下输出作为与普通观察图像信号不同的图像信号的视频信号,以及显示 用于接收由信号处理装置输出的视频信号并显示th的装置 e被检部件的图像。