发明名称 |
Light attenuator and process for fabrication thereof |
摘要 |
Disclosed is a light attenuator comprising a stick or rod composed of a light-transmitting material, and a light-attenuating layer composed of a thermoplastic resin and formed on at least one end face of the stick or rod, wherein finely divided particles having a light-absorbing or light-scattering property are uniformly incorporated in the thermoplastic resin. This light attenuator is made by forming a light-attenuating thermoplastic resin layer having incorporated therein the light-absorbing or light scattering finely divided particles on a release film or paper; placing the light-attenuating layer formed on the release film or paper on a heating plate; press-bonding the end face of a rod or stick composed of a light-transmitting material inserted and set in a ferrule to the surface of the release film or paper; cooling the bonded assembly; and then peeling the release film or paper to transfer the light-attenuating layer to the end face of the light-transmitting rod or stick.
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申请公布号 |
US5113476(A) |
申请公布日期 |
1992.05.12 |
申请号 |
US19900610697 |
申请日期 |
1990.11.08 |
申请人 |
MITSUBISHI RAYON COMPANY LTD. |
发明人 |
OKADA, HIROSHI;SUZUKI, SHINGO;KAGAMI, MANABU;SUEMATSU, CHIAKI |
分类号 |
G02B6/26;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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