发明申请
- 专利标题： Preform for plastic optical material, production method thereof, optical coupling method of plastic optical fiber and connector used for optical coupling
- 专利标题（中）： 塑料光学材料预制件，其制造方法，塑料光纤的光耦合方法及用于光耦合的连接器
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申请号： US11050000申请日： 2005-02-04
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公开(公告)号： US20050175290A1公开(公告)日： 2005-08-11
- 发明人: Yasuyuki Mizushima , Yoshisada Nakamura , Katsuya Takemasa , Masataka Sato , Hiroki Takahashi
- 申请人： Yasuyuki Mizushima , Yoshisada Nakamura , Katsuya Takemasa , Masataka Sato , Hiroki Takahashi
- 专利权人： Fuji Photo Film Co., Ltd.
- 当前专利权人： Fuji Photo Film Co., Ltd.
- 优先权： JP2004-031131 20040206; JP2004-093274 20040326
- 主分类号： G02B6/42
- IPC分类号： G02B6/42 ; G02B6/38 ; B29D11/00 ; G02B6/36
摘要：
A POF includes an inner core having a refractive index distribution and an outer core provided on periphery of the inner core. A ratio Ra/Rb of an outer diameter of the inner core to the outer core satisfies 0.67≦(Ra/Rb)≦0.87 such that an outgoing beam from an end of the POF may have a parallel area of at least 200 μm. Thus a space between the end for exiting the exit light and a light receiving device can be kept at least 200 mm without members or devices for collimating.
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