Invention Application
- Patent Title: Progressive Addition Lens for a Wearer
- Patent Title (中): 进给加法镜
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Application No.: US14387513Application Date: 2013-03-25
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Publication No.: US20150092157A1Publication Date: 2015-04-02
- Inventor: Mélanie Tessieres , Bruno Fermigier , Sylvain Chene , Wissam Mouallem
- Applicant: ESSILOR INTERNATIONAL (COMPAGNIE GENERALE D'OPTIQUE)
- Applicant Address: FR Charenton Le Pont
- Assignee: ESSILOR INTERNATIONAL (COMPAGINE GENERALE D'OPTIQUE)
- Current Assignee: ESSILOR INTERNATIONAL (COMPAGINE GENERALE D'OPTIQUE)
- Current Assignee Address: FR Charenton Le Pont
- Priority: EP12305342.3 20120323
- International Application: PCT/EP2013/056315 WO 20130325
- Main IPC: G02C7/06
- IPC: G02C7/06 ; G02C7/02
Abstract:
A progressive addition lens for a wearer, the optical lens having an addition lower by at least 0.5 diopter to the prescribed addition value of the wearer, wherein for a pupil diameter of 4 mm the modulation transfer function is greater or equal to 0.1 when measured for a spatial frequency comprised between 0 and 20 cycles per degree
Information query
