CA1279513C - Verre de lunettes multifoyer ayant au moins une surface progressive
- Google Patents
Verre de lunettes multifoyer ayant au moins une surface progressive
Info
Publication number
CA1279513C
CA1279513CCA000514382ACA514382ACA1279513CCA 1279513 CCA1279513 CCA 1279513CCA 000514382 ACA000514382 ACA 000514382ACA 514382 ACA514382 ACA 514382ACA 1279513 CCA1279513 CCA 1279513C
Authority
CA
Canada
Prior art keywords
viewing
distance
region
regions
spectacle lens
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Carl Zeiss AG
Original Assignee
Carl Zeiss AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Carl Zeiss AGfiledCriticalCarl Zeiss AG
Priority to CA000514382ApriorityCriticalpatent/CA1279513C/fr
Application grantedgrantedCritical
Publication of CA1279513CpublicationCriticalpatent/CA1279513C/fr