公开(公告)号：US4866526A

公开(公告)日：1989-09-12

申请号：US223028

申请日：1988-07-22

Applicant: Felix Ams ,  Michael Voegele

Inventor： Felix Ams ,  Michael Voegele

IPC: A61B1/04 ,  A61B1/05 ,  H04N5/225 ,  H04N5/235

CPC classification number: H04N5/2354 ,  A61B1/05 ,  A61B1/0638 ,  A61B1/0669 ,  H04N5/2254 ,  H04N5/2256 ,  A61B1/0646 ,  H04N2005/2255

Abstract: A video endoscope having a semiconductor image converter which is incorporated in the endoscope and which receives the image of the object illuminated periodically by an illumination device with a sequence of partial colors, for example by using a filter wheel, and converts same into video signal components which correspond to partial color separations of the image and which are read successively and selectively separated according to partial colors into an intermediate store and are then read out simultaneously for the formation of an individual image and are processed for the representation of the image into television-compatible video signals, in which the lamp of the illumination device is pulsed with variable pulse amplitudes. The pulsed operation of the lamp is a function of the number of partial colors to be generated with an even-numbered multiple of the image repetition frequency, in which respect the light flux of the light pulses emitted by the lamp is variable as a function of the actual value of the respective amplitudes of the video signals, in order, in a predetermined range of regulations, to bring the actual value to a desired value. Arranged in the beam path of the lamp is an optical regulating element which undertakes a further regulation of the light intensity outside of the range of regulation.

Abstract translation: 一种具有半导体图像转换器的视频内窥镜，该半导体图像转换器包括在内窥镜中并且接收由例如通过使用滤光轮的部分颜色的一系列的照明装置周期性照射的被摄体的图像，并将其转换为视频信号分量 其对应于图像的部分分色，并且根据部分颜色被连续地和选择性地分离成中间存储，然后同时读出以形成单个图像，并且将图像的表示处理为电视 - 兼容的视频信号，其中照明装置的灯以可变的脉冲幅度脉冲。 灯的脉冲操作是以图像重复频率的偶数倍产生的部分颜色的数量的函数，其中由灯发射的光脉冲的光通量作为 视频信号的相应振幅的实际值，按照规定的预定范围，以使实际值达到期望值。 在灯的光束路径中布置的是光调节元件，其进一步调节在调节范围之外的光强度。

公开(公告)号：US06947091B1

公开(公告)日：2005-09-20

申请号：US09594306

申请日：2000-06-15

Applicant: Holger Widmann ,  Michael Voegele ,  Ulrich Osterland

Inventor： Holger Widmann ,  Michael Voegele ,  Ulrich Osterland

IPC: G02B23/24 ,  G02B7/04 ,  G02B7/08 ,  G02B7/09 ,  G02B7/10 ,  G02B7/28 ,  H04N5/225 ,  H04N5/232 ,  H04N7/18

CPC classification number: G02B7/102 ,  H04N5/2251 ,  H04N5/23212 ,  H04N2005/2255

Abstract: A focussing and focal length adjusting device for an optical lens system in the camera head of an endoscope. This device includes a focussing device which has several piezoelectric bending actuators attached along and symmetrically to the optical axis of the focussing lens. The piezoelectric bending actuators are via in each case one joint member connected to a sleeve encompassing the focussing lens in a manner such that with voltage impingement bending movements carried out by the bending actuators are converted into a linear focussing movement for the focussing lens. Furthermore a zoom drive adjusting the focal length of a zoom lens system includes a stepper motor whose stepped rotation via a grooved roller and a pin linearly moved by the helical groove of this roller is converted into a linear movement of a zoom lens sleeve for the focal length adjustment. The activation of the stepper motor for the zoom operation, and the production of the focus adjusting signal for the piezoelectric actuators of the focussing device are effected during the vertical blanking interval of the video signal, this interval being extracted by an extraction circuit from the video signal and being led to a respective focussing circuit and a zoom control circuit in the form of a time window.

Abstract translation: 一种用于内窥镜的照相机头中的光学透镜系统的聚焦和焦距调节装置。 该装置包括聚焦装置，其具有沿聚焦透镜的光轴并且对称地附着的多个压电弯曲致动器。 压电弯曲致动器在每种情况下都是通过连接到围绕聚焦透镜的套筒的一个连接构件，使得通过弯曲致动器执行的电压冲击弯曲运动被转换成用于聚焦透镜的线性聚焦运动。 此外，调节变焦透镜系统的焦距的变焦驱动器包括步进电动机，该步进电动机通过带槽辊和由该辊的螺旋槽直线移动的销的转动转换为用于焦点的变焦透镜套筒的线性运动 长度调整。 用于变焦操作的步进电机的激活以及聚焦装置的压电致动器的焦点调节信号的产生在视频信号的垂直消隐间隔期间进行，该间隔由提取电路从视频中提取 信号并被引导到相应的聚焦电路和时间窗形式的变焦控制电路。

公开(公告)号：US06331156B1

公开(公告)日：2001-12-18

申请号：US09589846

申请日：2000-06-08

Applicant: Ulrich Haefele ,  Michael Voegele

Inventor： Ulrich Haefele ,  Michael Voegele

IPC: A61B107

CPC classification number: A61B1/0638 ,  A61B1/00124 ,  A61B1/045 ,  A61B1/0684 ,  A61B1/07 ,  A61B5/0084

Abstract: An electronic endoscope with a picture sensor located at its distal end and with several illumination units (LEDs) integrated in the endoscope, for producing illumination light irradiated at the distal endoscope end. The illumination units are arranged as a linear and axial array of LEDs in a space, of an enveloping tube, connecting proximally to the picture sensor. To the LEDs there are allocated fiber-optics into which the light irradiated by the LEDs may be coupled. The fiber-optics run up to the distal endoscope end and here are grouped together to a bundle.

Abstract translation: 一种具有图像传感器的电子内窥镜，其位于其远端，并具有集成在内窥镜中的多个照明单元（LED），用于产生在远侧内窥镜端部照射的照明光。 照明单元被布置为在封套管的空间中的线性和轴向阵列的阵列，其向近侧连接到图像传感器。 对于LED，分配有由LED照射的光可以耦合到其中的光纤。 纤维光学器件运行到远端内窥镜端，并且这里被分组在一起成束。