JP2000152063A5

JP2000152063A5 -

Info

Publication number: JP2000152063A5
Application number: JP1998327159A
Authority: JP
Filing date: 1998-11-17
Publication date: 2005-08-04

Description

また、請求項２に記載の発明によれば、被写体画像のモニター手段と、該モニター手段に接続されたカメラコントロール装置とを備え、複数の内視鏡を選択的に使用し得るようにした撮像装置において、前記カメラコントロール装置は、結像光学系と撮像素子とを備えた複数の電子内視鏡に接続可能であるか、結像光学系を備えた内視鏡に連結でき撮像素子を備えている複数のＴＶカメラに接続可能であるか、内視鏡に連結でき結像光学系と撮像素子とを備えている複数のＴＶカメラに接続可能であるか、前記電子内視鏡と前記二つのＴＶカメラのうち少なくとも二つに接続可能であるように構成されていて、前記結像光学系を備えている前記各内視鏡と前記結像光学系を備えている前記ＴＶカメラとは、各々の前記結像光学系の光路中に可変焦点手段を備えていて、前記可変焦点手段は、前記結像光学系とで合成される合成光学系の焦点距離を、残像が残る程度の速度で周期的に変化させることが可能であり、前記結像光学系は、前記可変焦点手段により前記合成光学系の焦点距離が変化しても、前記撮像素子の像面における像の大きさが実質的に変化しない特性を有していることを特徴としている。
更に、請求項３に記載の発明によれば、被写体画像のモニター手段に接続されたカメラコントロール装置が複数の内視鏡装置を選択的に接続可能に構成されており、各々の内視鏡装置は物体像を形成する光学系と撮像素子とを含んでいるとともに前記光学系の瞳位置あるいはその近傍に可変焦点手段を備えており、前記可変焦点手段は前記光学系の焦点距離を残像が残る程度の速度で周期的に変化させることが可能となっていて、前記光学系は前記可変焦点手段との合成光学系の焦点距離が変化しても前記撮像素子の像面における像の大きさが実質的に変化しない特性を有していることを特徴としている。
Further, according to the second aspect of the present invention, imaging is provided in which a subject image monitoring means and a camera control device connected to the monitoring means are provided so that a plurality of endoscopes can be selectively used. In the device, the camera control device can be connected to a plurality of electronic endoscopes including an imaging optical system and an imaging element, or can be connected to an endoscope equipped with an imaging optical system and includes an imaging element. Whether it can be connected to a plurality of TV cameras, or can be connected to a plurality of TV cameras having an imaging optical system and an imaging element, which can be connected to an endoscope, the electronic endoscope and the above two. Each of the endoscopes having the imaging optical system and the TV camera having the imaging optical system, which are configured to be connectable to at least two of the TV cameras, A variable focusing means is provided in the optical path of each of the imaging optical systems, and the variable focusing means adjusts the focal length of the synthetic optical system synthesized by the imaging optical system at a speed such that an afterimage remains. The imaging optical system can be changed periodically, and even if the focal length of the synthetic optical system is changed by the variable focal length means, the size of the image on the image plane of the imaging element is substantially large. It is characterized by having the property of not changing to.
Further, according to the third aspect of the invention, the camera control device connected to the subject image monitoring means is configured to be able to selectively connect a plurality of endoscopic devices, and each of the endoscopic devices. Includes an optical system for forming an object image and an imaging element, and also includes a variable focus means at or near the pupil position of the optical system, and the variable focus means leaves an afterimage of the focal length of the optical system. The optical system can be changed periodically at a speed of about the same, and even if the focal length of the composite optical system with the variable focus means changes, the size of the image on the image plane of the image pickup element becomes large. It is characterized by having characteristics that do not change substantially.

Claims

An imaging optical system for forming an object image, variable focus means, and an image sensor for imaging an object image formed by the imaging optical system, wherein the variable focus means includes the imaging optics It is possible to periodically change the focal length of the synthesis optical system synthesized with the system at a speed at which an afterimage remains. An image pickup apparatus having a characteristic that an image size on an image plane of the image pickup device does not substantially change even when a distance changes.

An imaging apparatus comprising a subject image monitoring means and a camera control device connected to the monitoring means, wherein a plurality of endoscopes can be selectively used, wherein the camera control device comprises an imaging optical system Can be connected to a plurality of electronic endoscopes equipped with an imaging device, or can be connected to a plurality of TV cameras equipped with an imaging device that can be connected to an endoscope equipped with an imaging optical system, It can be connected to an endoscope and can be connected to a plurality of TV cameras including an imaging optical system and an imaging device, or can be connected to at least two of the electronic endoscope and the two TV cameras. The endoscope having the imaging optical system and the TV camera having the imaging optical system are configured so that a variable focus is provided in the optical path of each imaging optical system. Means with said variable focus The stage is capable of periodically changing the focal length of the combining optical system combined with the imaging optical system at a speed at which an afterimage remains, and the imaging optical system includes the variable focusing means. Therefore, even if the focal length of the composite optical system changes, the image pickup apparatus has a characteristic that the image size on the image plane of the image pickup element does not substantially change.

The camera control device connected to the subject image monitor means is configured to be able to selectively connect a plurality of endoscope devices, and each endoscope device has an optical system and an image sensor for forming an object image. And includes a variable focus means at or near the pupil position of the optical system, and the variable focus means can periodically change the focal length of the optical system at a speed at which an afterimage remains. The optical system has a characteristic that the size of the image on the image plane of the image sensor does not substantially change even if the focal length of the combining optical system with the variable focus means changes. A characteristic imaging apparatus.