您的位置: 首页 > 农业专利 > 详情页

TRIFOCAL INTRAOCULAR LENS WITH AN EXTENDED VISION RANGE AND CORRECTION OF LONGITUDINAL CHROMATIC ABERRATION
专利权人:
发明人:
申请号:
RU2018108193
公开号:
RU2018108193A3
申请日:
申请国别(地区):
RU
年份:
2019
代理人:
摘要:
Disclosed is an intraocular lens (10) (IOL) including an anterior surface (16), a posterior surface (18) and an optical axis (20), wherein on at least one of the anterior or posterior surfaces (16, 18) a diffractive profile (24) is formed, said diffractive profile (24) providing for a diffractive focal point (30) for far vision, a diffractive focal point (32) for intermediate vision, and a diffractive focal point (34) for near vision. The said diffractive profile (24) corresponds to a superposition of a first partial diffractive profile (26) and a second partial diffractive profile (28), wherein the first partial diffractive profile (26) has a focal point of order +n that coincides with the diffractive focal point for intermediate vision (32) or with the diffractive focal point for near vision (30), the second partial diffractive profile (28) has a focal point of order + n that coincides with the diffractive focal point (30) for far vision, and a focal point of higher order than +n of the second partial diffractive profile (28) coincides with the diffractive focal point (34) for near vision.
来源网站:
中国工程科技知识中心
来源网址:
http://www.ckcest.cn/home/

意 见 箱

匿名:登录

个人用户登录

找回密码

第三方账号登录

忘记密码

个人用户注册

必须为有效邮箱
6~16位数字与字母组合
6~16位数字与字母组合
请输入正确的手机号码

信息补充