EP 2223181 A2 20100901 - PROGRESSIVE LENS FOR OPHTHALMIC SPECTACLES, HAVING AN ADDITIONAL ZONE FOR INTERMEDIATE VISION
Title (en)
PROGRESSIVE LENS FOR OPHTHALMIC SPECTACLES, HAVING AN ADDITIONAL ZONE FOR INTERMEDIATE VISION
Title (de)
GLEITSICHTGLAS FÜR BRILLE MIT ZUSÄTZLICHEM BEREICH FÜR ZWISCHENSICHT
Title (fr)
LENTILLE PROGRESSIVE DE LUNETTES OPHTALMIQUES AYANT UNE ZONE SUPPLEMENTAIRE DE VISION INTERMEDIAIRE
Publication
Application
Priority
- FR 2008052195 W 20081203
- FR 0708499 A 20071205
Abstract (en)
[origin: WO2009077708A2] A progressive lens for ophthalmic spectacles has an additional zone for intermediate vision. This additional zone is located beneath a near-vision zone. It enables objects located at a distance of between 1.0 and 1.5 meters, in a direction inclined at about 35 degrees to a line of sight passing through a cross mark (CM) on the lens, to be seen clearly. To achieve this, the optical power progression between a far-vision point (FV) and a near-vision point (NV) of said lens has a power-increase threshold which is located approximately at the cross mark.
IPC 8 full level
CPC (source: EP US)
G02C 7/061 (2013.01 - EP US); G02C 7/065 (2013.01 - EP US)
Citation (search report)
See references of WO 2009077708A2
Citation (examination)
- FR 2683642 A1 19930514 - ESSILOR INT [FR]
- EP 1022601 A1 20000726 - ESSILOR INT [FR]
- EP 1837699 A1 20070926 - ESSILOR INT [FR]
- "Ophthalmic Optics - Mounted Spectacle Lenses / Optique Ophtalmique - Verres Ophtalmiques Montés", INTERNATIONAL STANDARD, ISO, no. ISO 21987, 1 October 2009 (2009-10-01), pages 1 - 24, XP007912908
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA MK RS
DOCDB simple family (publication)
FR 2924824 A1 20090612; FR 2924824 B1 20100326; EP 2223181 A2 20100901; JP 2011507010 A 20110303; JP 5535933 B2 20140702; US 2010283963 A1 20101111; US 8061838 B2 20111122; WO 2009077708 A2 20090625; WO 2009077708 A3 20090827
DOCDB simple family (application)
FR 0708499 A 20071205; EP 08862414 A 20081203; FR 2008052195 W 20081203; JP 2010536515 A 20081203; US 74619008 A 20081203