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公开(公告)号：EP0883010A3
公开(公告)日：2000-02-23
申请号：EP98303610.4
申请日：1998-05-08
发明人： Mearns, Ian Duguid
CPC分类号： G02B17/084 , G02B17/061 , G02B17/0694 , G02B17/0856 , G02B17/0896
摘要： A dual field optical system 20 comprises an objective A, B, which forms an intermediate image 10 and a relay E,F, which transfers radiation to a focal plane 12. The objective A, B comprises a primary mirror A and a secondary mirror B arranged in the form of a Cassegrain system and is rendered dual-field by the provision of an alternative primary mirror A 1 which is axially movable between in-use and out-of-use positions. The primary mirror A forms part of a housing J for a linear actuator 15 which is connected by co-axial rods 14 to the alternative primary mirror A 1 so that the system is both compact and of low mass due to symmetry.
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公开(公告)号：EP0883010A2
公开(公告)日：1998-12-09
申请号：EP98303610.4
申请日：1998-05-08
发明人： Mearns, Ian Duguid
CPC分类号： G02B17/084 , G02B17/061 , G02B17/0694 , G02B17/0856 , G02B17/0896
摘要： A dual field optical system 20 comprises an objective A, B, which forms an intermediate image 10 and a relay E,F, which transfers radiation to a focal plane 12. The objective A, B comprises a primary mirror A and a secondary mirror B arranged in the form of a Cassegrain system and is rendered dual-field by the provision of an alternative primary mirror A 1 which is axially movable between in-use and out-of-use positions. The primary mirror A forms part of a housing J for a linear actuator 15 which is connected by co-axial rods 14 to the alternative primary mirror A 1 so that the system is both compact and of low mass due to symmetry.
摘要翻译： 双场光学系统20包括物镜A，B，其形成中间图像10和将辐射传送到焦平面12的继电器E，F。物镜A，B包括主镜A和副镜B 以卡塞格林系统的形式布置，并且通过提供可在使用中和不在使用位置之间轴向移动的替代主镜A 1而呈现双场。 主镜A形成用于线性致动器15的壳体J的一部分，其通过同轴杆14连接到替代主镜A 1，使得系统由于对称而紧凑且质量低。
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公开(公告)号：EP0883010B1
公开(公告)日：2003-11-05
申请号：EP98303610.4
申请日：1998-05-08
发明人： Mearns, Ian Duguid
CPC分类号： G02B17/084 , G02B17/061 , G02B17/0694 , G02B17/0856 , G02B17/0896
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