Objective lens system for an endscope
    3.
    发明授权
    Objective lens system for an endscope 失效
    用于内窥镜的物镜系统

    公开(公告)号:US4674844A

    公开(公告)日:1987-06-23

    申请号:US758417

    申请日:1985-07-24

    CPC分类号: G02B9/34 G02B23/243 G02B9/60

    摘要: An objective lens system for an endoscope comprises a first lens component having a negative refracting power, a second lens component having a positive refracting power, a third lens component having a positive refracting power and a fourth lens component involving a meniscus lens having its concave surface facing the object side, with the lens system being such that the total length is short, the outside diameter is small, the angle of view is wide, and the illuminance in the peripheral portion of the image field is high.

    摘要翻译: 一种用于内窥镜的物镜系统,包括具有负折射力的第一透镜部件,具有正折射力的第二透镜部件,具有正折射率的第三透镜部件和包括其凹面的弯月透镜的第四透镜部件 面对物体侧,透镜系统的总长度短,外径小,视角宽,图像周边部的照度高。

    Optical system for endoscopes and endoscopes using same
    4.
    发明授权
    Optical system for endoscopes and endoscopes using same 失效
    用于内窥镜和使用其的内窥镜的光学系统

    公开(公告)号:US5177605A

    公开(公告)日:1993-01-05

    申请号:US870754

    申请日:1992-04-20

    IPC分类号: A61B1/05 G02B17/08 G02B23/24

    CPC分类号: G02B23/2423 A61B1/05

    摘要: In order to enable to sufficiently deflect the viewing direction for a distal end having an end surface substantially perpendicular to the optical axis of an objective optical system and minimize aberrations produced due to the deflecting action, the objective optical system for endoscopes comprises at least one surface designed as a deflecting surface or an eccentric surface on the image side of the surface nearest the object to be observed out of the surfaces of the optical components composing the objective optical system so that the light is refracted at least twice for deflecting the viewing direction. In order to shorten total length and minimize outside diameter of the objective optical system and enable to sufficiently eliminate the infrared light incident from the object, the objective optical system comprises at least one optical component made of a substance absorbing the light having the oscillation frequency of the YAG laser light and interference films reflecting the light having the oscillation frequency of the YAG laser light formed on the cemented surfaces of the optical components and/or the surface of emergence of a rear group designed as a positive lens component.

    摘要翻译: 为了能够使具有基本上垂直于物镜光学系统的光轴的端面的远端足够偏转观察方向,并且使由于偏转动作产生的像差最小化,内窥镜用物镜系统包括至少一个表面 被设计为在构成物镜光学系统的光学部件的表面之外最靠近被观察物体的表面的像侧上的偏转表面或偏心表面,使得光被折射至少两次以偏转观察方向。 为了缩短物镜光学系统的总长度和最小化外径,能够充分消除从物体入射的红外光,物镜光学系统包括至少一个光学部件,该光学部件由吸收具有振荡频率 反射具有形成在光学部件的胶合表面上的YAG激光的振荡频率的光和/或设计为正透镜部件的后组的出射表面的YAG激光和干涉膜。

    High image resolution image pickup system with color dispersion means
    5.
    发明授权
    High image resolution image pickup system with color dispersion means 失效
    高分辨率图像拾取系统,具有色散装置

    公开(公告)号:US5014121A

    公开(公告)日:1991-05-07

    申请号:US396223

    申请日:1989-08-21

    IPC分类号: H04N5/225

    摘要: An image pickup system with an illuminating device capable of sequentially irradiating three kinds of color lights different from each other onto an object, an objective lens system forming images of the object with the color lights, a solid-state image sensor receiving the images of the object, a signal processing device producing individual color images of the object based on electric signals supplied from the solid-state image sensor, and a color dispersion device or a color separation device disposed in an optical path of light incident on the solid-state image sensor from the object. The color dispersion device includes the combination of variously shaped prisms and a diffraction grating, and the color separation device includes a structure compounded of dichroic mirrors, whereby the images with respective color lights are incident at positions shifted each other on the solid-state image sensor. The compound of signals indicative of individual color images makes it possible to bring about the object image with high resolution.

    High resolution image pickup system with color dispersion means
    6.
    发明授权
    High resolution image pickup system with color dispersion means 失效
    具有色散装置的高分辨率摄像系统

    公开(公告)号:US4882619A

    公开(公告)日:1989-11-21

    申请号:US35013

    申请日:1987-04-06

    IPC分类号: H04N5/225

    摘要: In order to enhance resolving power and making the fabrication of an optical system easy, the image pickup device is of an arrangement that a color-separating optical means is disposed between an objective lens and a solid-state image sensor, and those images by the respective color lights which are focused at mutually displaced positions on the solid-state image sensor are integrated into one unified image by a signal processing circuitry to thereby collect also the image-informations corresponding to those areas lying between the picture elements. The color-separating optical means may be formed by either one of a color dispersion prism, a dichroic mirror, a diffraction grating, a glass block made of a medium of heterogeneous material and a light-divider containing liquid crystal.

    摘要翻译: 为了提高分辨能力并且使得光学系统的制造变得容易,图像拾取装置具有将分色光学装置设置在物镜和固态图像传感器之间的布置,并且这些图像由 聚焦在固态图像传感器上的相互移位位置的各个颜色的光通过信号处理电路被集成到一个统一的图像中,从而还收集对应于位于像素之间的那些区域的图像信息。 分色光学装置可以由分色棱镜,二向色镜,衍射光栅,由异质材料介质制成的玻璃块和含有液晶的分光器中的任一个形成。

    Imaging apparatus having electrooptic devices which comprise a variable
focal length lens
    7.
    发明授权
    Imaging apparatus having electrooptic devices which comprise a variable focal length lens 失效
    具有电光装置的成像装置包括可变焦距透镜

    公开(公告)号:US5071229A

    公开(公告)日:1991-12-10

    申请号:US390402

    申请日:1989-08-07

    摘要: An imaging apparatus is provided with a negative lens, a variable focal length lens unit including a material with an electrooptic effect, a light blocking unit, including the material with the electrooptic effect, capable of changing an aperture diameter, and a switch, interlocked with each other, capable of supplying electric power to the variable focal length lens unit and the light blocking unit which are arranged in order on an optical axis from an object side to an image side. When the switch is turned off, the variable focal length lens unit is set to bring an object at a far point into focus and the light blocking unit is set so that an aperture is determined by an aperture stop, while on the other hand, when the switch is turned on, the variable focal length lens unit is set so that an object at a near point is in focus and the light blocking unit is set to be smaller in aperture. Apertures different in size are determined by a plurality of annular transparent electrodes incorporated in the light blocking unit and configured concentrically. Thus the imaging apparatus can be constructed to be small or compact in size and is easy in manufacturing.

    摘要翻译: 成像装置设置有负透镜,包括具有电光效应的材料的可变焦距透镜单元,包括具有电光效应的材料,能够改变孔径的遮光单元以及与 彼此能够向从物侧到像侧的光轴依次配置的可变焦距透镜单元和遮光单元供电。 当开关断开时,可变焦距透镜单元被设置为使物体在远点处聚焦,并且遮光单元被设置为使得孔径由孔径光阑确定,而另一方面,当 开关被接通,可变焦距透镜单元被设置成使得近点处的物体处于焦点并且遮光单元被设定为较小的孔径。 尺寸不同的孔径由结合在遮光单元中的多个环形透明电极确定并同心配置。 因此,成像装置可以被构造成尺寸小或紧凑,并且制造容易。

    Image transmitting optical system using optical fiber bundle
    8.
    发明授权
    Image transmitting optical system using optical fiber bundle 失效
    使用光纤束的图像传输光学系统

    公开(公告)号:US4676592A

    公开(公告)日:1987-06-30

    申请号:US582735

    申请日:1984-02-23

    CPC分类号: G02B23/26

    摘要: An image transmitting optical system comprising an objective, an image guide formed of an optical fiber bundle, an eyepiece, a relay-lens system, and a stop capable of changing an aperture provided adjacently to any of the position of an exit pupil of the eyepiece, the position conjugate with the exit pupil in respect of the relay-lens system or the position of an entrance pupil of the objective, in order to enable to photograph more clearly even in a short distance photographing.

    摘要翻译: 包括物镜的图像传输光学系统,由光纤束形成的图像引导件,目镜,中继透镜系统和能够改变与目镜的出射光瞳的任何位置相邻设置的光阑的光阑 相对于中继透镜系统与出射光瞳共轭的位置或物镜的入射光瞳的位置,以便即使在短距离拍摄中也能够更清晰地拍摄。

    Objective lens system for endoscopes
    9.
    发明授权
    Objective lens system for endoscopes 失效
    内窥镜物镜系统

    公开(公告)号:US5436767A

    公开(公告)日:1995-07-25

    申请号:US236680

    申请日:1994-05-02

    IPC分类号: G02B23/24 G02B13/18

    CPC分类号: G02B9/12 G02B23/243

    摘要: An objective lens system for endoscopes comprising, in order from the object side, a first lens component having negative refractive power, a second lens component having positive refractive power and a third lens component having positive refractive power; wherein astigmatism is corrected favorably by using an aspherical surface in the third lens component or an aperture stop is arranged between the second lens component and an image surface of the objective lens system, and aberrations including chromatic aberration are corrected favorably.

    摘要翻译: 一种用于内窥镜的物镜系统,包括从物体侧开始具有负折光力的第一透镜部件,具有正屈光力的第二透镜部件和具有正折光力的第三透镜部件; 其中通过在第三透镜部件中使用非球面来适当地校正像散,或者在第二透镜部件和物镜系统的图像表面之间布置孔径光阑,并且有利地校正包括色像差的像差。

    Imaging apparatus having electrooptic devices comprising a variable
focal length lens
    10.
    发明授权
    Imaging apparatus having electrooptic devices comprising a variable focal length lens 失效
    具有电光装置的成像装置包括可变焦距透镜

    公开(公告)号:US5150234A

    公开(公告)日:1992-09-22

    申请号:US787139

    申请日:1991-11-04

    摘要: An imaging apparatus is provided with a negative lens, a variable focussing lens unit including a material with an electrooptic effect, a light blocking unit, including the material with the electrooptic effect, capable of changing an aperture diameter, and a switch, interlocked with each other, capable of supplying electric power to the variable focussing lens unit and the light blocking unit which are arranged in order on an optical axis from an object side to an image side. When the switch is turned off, the variable focussing lens unit is set to bring an object at a far point into focus and the light blocking unit is set so that an aperture is determined by an aperture stop, while on the other hand, when the swtich is turned on, the variable focussing lens unit is set so that an object at a near point is in focus and the light blocking unit is set to be smaller in aperture. Apertures different in size are determined by a plurality of annular transparent electrodes incorporated in the light blocking unit and configured concentrically. Thus the imaging apparatus can be constructed to be small or compact in size and is easy in manufacturing.

    摘要翻译: 一种成像装置设置有负透镜,包括具有电光效应的材料的可变聚焦透镜单元,包括具有电光效应的材料,能够改变光圈直径的光阻挡单元和与每个 另一方面,能够对从物侧到像侧的光轴依次配置的可变聚焦透镜单元和遮光单元供电。 当开关关闭时,可变聚焦透镜单元被设置为使物体在远点处聚焦并且遮光单元被设置为使得孔径由孔径光阑确定,而另一方面,当 开启可变焦点透镜单元,使近点处的物体成为焦点,并将遮光单元设定得较小。 尺寸不同的孔径由结合在遮光单元中的多个环形透明电极确定并同心配置。 因此,成像装置可以被构造成尺寸小或紧凑,并且制造容易。