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Method for determining, in a natural posture, at least one geometric/physiognomic parameter associated with the mounting of an ophthalmic lens in a spectacle frame
专利权人:
Jean Delzers;Ahmed Haddadi
发明人:
Ahmed Haddadi,Jean Delzers
申请号:
US13985117
公开号:
US09195078B2
申请日:
2011.12.30
申请国别(地区):
US
年份:
2015
代理人:
摘要:
Method for determining, in a natural posture, at least one geometric/physiognomic parameter associated with the mounting of an ophthalmic lens in a spectacle frame intended to be worn by a wearer. The method includes: (a) capturing at least one substantially frontal image of the wearer's head; (b) determining a measured value of an angle of inclination during the capturing step, which depends on the inclination of the wearer's head about a main axis perpendicular to a sagittal plane of the wearer's head; (c) determining a reference value of the angle of inclination corresponding to a natural posture of the wearer's head; and (d) determining the required geometric/physiognomic parameter on the basis of the substantially frontal image captured and as a function of the difference between the measured value of the angle of inclination determined in step (b) and the reference value of the angle of inclination determined in step (c).
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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