EP 2457121 A1 20120530 - VISION MASK
Title (en)
VISION MASK
Title (de)
SICHTMASKE
Title (fr)
MASQUE DE VISION
Publication
Application
Priority
- FR 0903579 A 20090721
- EP 2010060449 W 20100719
Abstract (en)
[origin: WO2011009842A1] The invention relates to a vision screen with a continuous, cylindrical, toroidal or spherical convex surface (2), having a trace in a binocular plane of vision forming an outer arc of circle with a predetermined radius (R), the vision screen having a concave surface with a trace in said same plane of vision forming at least one region around a point where each line of vision (AD, AG) crosses the concave surface of an inner arc of circle (3, 4) with a specific curvature radius (R1), and a centre (C1, C2) other than that of the arc of circle crossed by the other line of vision, characterised in that the specific radius (R1) of each inner arc of circle is other than the radius (R) of the outer arc of circle.
IPC 8 full level
G02C 7/02 (2006.01)
CPC (source: EP US)
G02C 7/02 (2013.01 - EP US)
Citation (search report)
See references of WO 2011009842A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR
DOCDB simple family (publication)
WO 2011009842 A1 20110127; BR 112012001336 A2 20160329; CN 102483524 A 20120530; EP 2457121 A1 20120530; FR 2948467 A1 20110128; FR 2948467 B1 20111021; US 2012120366 A1 20120517
DOCDB simple family (application)
EP 2010060449 W 20100719; BR 112012001336 A 20100719; CN 201080033659 A 20100719; EP 10734490 A 20100719; FR 0903579 A 20090721; US 201013386380 A 20100719