发明授权
- 专利标题： Camera having a varifocal lens
- 专利标题（中）： 相机具有变焦镜头
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申请号： US08320372申请日： 1994-10-11
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公开(公告)号： US06339510B1公开(公告)日： 2002-01-15
- 发明人: Nobuyuki Taniguchi , Masaaki Nakai , Takanobu Omaki , Tokuji Ishida , Hisayuki Masumoto , Hisashi Tokumaru , Tsuneyo Metabi
- 申请人： Nobuyuki Taniguchi , Masaaki Nakai , Takanobu Omaki , Tokuji Ishida , Hisayuki Masumoto , Hisashi Tokumaru , Tsuneyo Metabi
- 优先权： JP63-196626 19880805
- 主分类号： G02B1514
- IPC分类号： G02B1514
摘要：
A camera in which the ratio of an object to the photographing frame can be set comprises a varifocal lens in which the in-focus position is changed in accordance with the change in the focal lens and a focusing lens for correcting the focus by the varifocal lens. The size of the object is set to the desired size by using the varifocal lens, and thereafter the deviation of the in-focus point is controlled by the focusing lens. Since the zooming is carried out by using a varifocal lens, a camera can be provided in which the ratio of an object to the photographing frame can be set in a simple structure.
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