基本信息:
- 专利标题： Autofocus distance-measuring optical system
- 专利标题（中）：自动对焦测距光学系统
- 申请号：US09799618 申请日：2001-03-07
- 公开(公告)号：US20010021012A1 公开(公告)日：2001-09-13
- 发明人： Masami Shirai , Ryota Ogawa , Shinichi Suzuki , Homu Takayama
- 申请人： Asahi Kogaku Kogyo Kabushiki Kaisha
- 申请人地址： JP Tokyo
- 专利权人： Asahi Kogaku Kogyo Kabushiki Kaisha
- 当前专利权人： Asahi Kogaku Kogyo Kabushiki Kaisha
- 当前专利权人地址： JP Tokyo
- 优先权： JP2000-66230(P) 20000310
- 主分类号： G01C003/08
- IPC分类号： G01C003/08 ; G03B015/02 ; G03B013/00 ; G02B007/04 ; G02B027/40 ; G02B027/64
摘要：
An autofocus distance-measuring optical system includes a sighting telescope having an objective lens for sighting an object; an optical distance meter which includes a light-transmitting optical system for transmitting a measuring light via the, and a light-receiving optical system for receiving light reflected by the object; a focus detecting device for detecting a focus state of the sighting telescope; and a controller for controlling the sighting telescope to automatically focus on the object in accordance with the focus state detected by the focus detecting device. The focus detecting device is a phase-difference detection type which detects an in-focus state from a pair of images respectively formed by two light bundles which are passed through two different pupil areas. The two different pupil areas are positioned so as not to interfere with any optical elements of the optical distance meter.
摘要（中）：
自动对焦距离测量光学系统包括具有用于瞄准物体的物镜的瞄准望远镜; 光学距离计，其包括用于透过测量光的透光光学系统和用于接收被物体反射的光的光接收光学系统; 用于检测瞄准望远镜的焦点状态的焦点检测装置; 以及控制器，用于根据由焦点检测装置检测到的焦点状态来控制瞄准望远镜以自动对准物体。 焦点检测装置是从通过两个不同光瞳区域的两个光束形成的一对图像中检测对焦状态的相位差检测型。 两个不同的光瞳区域被定位成不干涉光学距离计的任何光学元件。
公开/授权文献:
- US06480266B2 Autofocus distance-measuring optical system 公开/授权日：2002-11-12