公开(公告)号：US5325140A

公开(公告)日：1994-06-28

申请号：US814414

申请日：1991-12-23

申请人： Yuichi Torikoshi ,  Goichi Hiratsuka ,  Hideki Okubo ,  Takashi Suzuki ,  Hideaki Kume

发明人： Yuichi Torikoshi ,  Goichi Hiratsuka ,  Hideki Okubo ,  Takashi Suzuki ,  Hideaki Kume

IPC分类号： G02B23/14 ,  G03B1/50 ,  G03B13/12 ,  G03B17/02

CPC分类号： G03B1/50 ,  G03B13/12 ,  G02B23/145

摘要： A camera wherein the photographed picture size can be switched and is formed mostly of a magnification variable finder optical system, a photographed picture size switching mechanism and a finder visual field frame switching mechanism. When the picture size is switched by operating the photographed picture size switching mechanism, the finder magnification will be altered to a magnification corresponding to the picture size through a finder cam as operatively connected with the operation and at the same time the finder visual field frame will be also altered in conformity with the finder magnification and picture size. According to this camera, for example, even if the picture frame becomes narrow, the finder magnification will be elevated by switching the picture size and further the image will be made easy to observe by expanding the finder visual field frame.

摘要翻译： 照相机，其中拍摄的图像尺寸可以被切换并且主要由倍率可变取景器光学系统，拍摄的图像尺寸切换机构和取景器视野帧切换机构形成。 当通过操作拍摄的图像尺寸切换机构切换图像尺寸时，通过与操作连接的取景器凸轮将取景器放大率改变为与图像尺寸相对应的放大率，并且同时取景器视野框架将 也可以根据取景器放大倍数和图像尺寸进行更改。 例如，根据该摄像机，即使画面变窄，通过切换图像尺寸来提高取景器放大率，并且通过扩大取景器视野框架，可以使图像容易观察。