发明名称 |
Preform for plastic optical material, production method thereof, optical coupling method of plastic optical fiber and connector used for optical coupling |
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 mum. 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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申请公布号 |
US7590319(B2) |
申请公布日期 |
2009.09.15 |
申请号 |
US20050050000 |
申请日期 |
2005.02.04 |
申请人 |
FUJIFILM CORPORATION |
发明人 |
MIZUSHIMA YASUYUKI;NAKAMURA YOSHISADA;TAKEMASA KATSUYA;SATO MASATAKA;TAKAHASHI HIROKI |
分类号 |
G02B6/26;B29D11/00;G02B6/00;G02B6/02;G02B6/028;G02B6/032;G02B6/036;G02B6/10;G02B6/32;G02B6/42 |
主分类号 |
G02B6/26 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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