发明名称 |
Optical lens |
摘要 |
An optical lens made of resin, which includes a molded body made of a molding material containing a transparent polyamide such as polyamide 12 and a stabilizer, which has total light transmittance of at least 60% when the molded body has a thickness of 2 mm, and has total light transmittance of at least 50% after the molded body maintained at 80° C. was irradiated with light in an amount of 1000 W/m2 for 500 hours by using a xenon lamp, which is lightweight, highly transparent, and resistant to discoloration, deformation, aging, and the like due to irradiation with light emitted from a xenon lamp, a blue-violet laser or the like serving as a light source, and which is suitable for use in a light emitting device of a flash lamp and the like, is provided. |
申请公布号 |
US8854733(B2) |
申请公布日期 |
2014.10.07 |
申请号 |
US200812810686 |
申请日期 |
2008.12.26 |
申请人 |
Sumitomo Electric Fine Polymer, Inc. |
发明人 |
Nakabayashi Makoto |
分类号 |
G02B1/10;C08L77/06;C08L77/00;C08L77/02;G02B3/08;G02B1/04;G03B15/00 |
主分类号 |
G02B1/10 |
代理机构 |
McDermott, Will & Emery LLP |
代理人 |
McDermott, Will & Emery LLP |
主权项 |
1. An optical lens comprising a molded body made of a molding material containing a transparent polyamide cross-linked through irradiation with radioactive rays and a stabilizer,
said optical lens having total light transmittance of at least 60% when said molded body has a thickness of 2 mm, and having total light transmittance of at least 50% after said molded body maintained at 80° C. is irradiated with light in an amount of 1000 W/m2 for 500 hours by using a xenon lamp, said transparent polyamide is composed of a condensation polymer of 1,10-decanedicarboxylic acid and 3,3′-dimethyl-4,4′-diaminodicyclohexylmethane, a blend ratio of said stabilizer being 0.01 to 0.21 parts by weight with respect to 100 parts by weight said transparent polyamide, and said stabilizer including 2-methyl-6-ethyl-hydroquinone. |
地址 |
Osaka JP |