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LENTILLE INTRAOCULAIRE MULTIFOCALE
专利权人:
Vision Pro (Wuxi) Ltd
发明人:
LIAO, Xiugao,FENG, Zhenyu,CAO, Jinghui,YANG, Qin
申请号:
EP17894673
公开号:
EP3461460A4
申请日:
2017.11.03
申请国别(地区):
EP
年份:
2019
代理人:
摘要:
Disclosed is a multifocal intraocular lens, including an optical body (1), a first support loop (2) and a second support loop (3), wherein, the optical body (1) is composed of a substrate layer (1-1) and a coating layer (1-2); the substrate layer (1-1), the first support loop (2) and the second support loop (3) have a one-piece structure and are formed integrally with the same material; the coating layer (1-2) is cemented on the substrate layer (1-1) by means of injection-compression molding; the substrate layer (1-1) and the coating layer (1-2) are made of different materials. The optical body of the present invention is a multifocal optical zone with a double-cemented structure. The optical zone includes a plurality of binary surfaces (two to four) and an aspheric surface, effectively correcting chromatic aberration of the secondary spectrum, improving image quality, expanding the range of additional optical power, and achieving a full range of vision.
来源网站:
中国工程科技知识中心
来源网址:
http://www.ckcest.cn/home/

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