发明授权
- 专利标题： Image forming light scanning apparatus
- 专利标题（中）： 成像光扫描装置
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申请号： US948852申请日： 1997-10-10
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公开(公告)号： US5926306A公开(公告)日： 1999-07-20
- 发明人: Hiromu Nakamura , Toshio Naiki , Etsuko Shibata , Satoru Ono
- 申请人： Hiromu Nakamura , Toshio Naiki , Etsuko Shibata , Satoru Ono
- 申请人地址： JPX Osaka
- 专利权人： Minolta Co., Ltd.
- 当前专利权人： Minolta Co., Ltd.
- 当前专利权人地址： JPX Osaka
- 优先权： JPX5-214311 19930830; JPX5-322556 19931221; JPX6-101102 19940516
- 主分类号： G02B13/00
- IPC分类号： G02B13/00 ; G02B26/12 ; G02B26/08
摘要：
A scanning apparatus has a luminous flux deflector and a single f.theta. lens. The deflector deflects a convergent luminous flux on a scanned surface at a uniform angular velocity. The f.theta. lens is arranged between the deflector and the scanned surface. The f.theta. lens is bi-convex in a main scanning direction and is made of a material having a refractive index of at most 1.6. One surface of the f.theta. lens in a main scanning direction is so curved that a radius of curvature in the main scanning direction A decreases as an angle of view in the main scanning direction increases.
公开/授权文献
- US4310150A Workbench 公开/授权日：1982-01-12
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