EP 1708611 A1 20061011 - METHOD AND VISION TEST APPARATUS FOR DETERMINING THE NECESSITY OF A VISION AID DURING DARKNESS AND/OR TWILIGHT, AND A SET OF VISION AIDS
Title (en)
METHOD AND VISION TEST APPARATUS FOR DETERMINING THE NECESSITY OF A VISION AID DURING DARKNESS AND/OR TWILIGHT, AND A SET OF VISION AIDS
Title (de)
VERFAHREN UND SEHTESTGERÄT ZUR ERMITTLUNG DER NOTWENDIGKEIT EINER SEHHILFE BEI DUNKELHEIT UND/ODER DÄMMERUNG SOWIE EIN SET VON SEHHILFEN
Title (fr)
PROCEDE ET APPAREIL D'EXAMEN DE LA VUE POUR DETERMINER LA NECESSITE D'UN AUXILIAIRE VISUEL EN CAS D'OBSCURITE ET/OU DE CONDITIONS CREPUSCULAIRES ET ENSEMBLE D'AUXILIAIRES VISUELS
Publication
Application
Priority
- EP 2004014278 W 20041215
- DE 102004003688 A 20040124
Abstract (en)
[origin: WO2005070285A1] The invention concerns a method and vision test apparatus for determining the necessity of a vision aid during darkness and/or twilight, as well as to a set of vision aids. According to the invention, the daytime defective vision is measured at at least one value of high luminance = 10 cd/m<2>, and the nighttime defective vision is measured at at least one value of low luminance < 10 CD/M<2>. Afterwards, the difference between the daytime defective vision and the nighttime defective vision is determined, and when a defined value is exceeded, the recommendation for using a vision aid during darkness and/or twilight is output.
IPC 8 full level
A61B 3/028 (2006.01); A61B 3/06 (2006.01); A61B 3/103 (2006.01)
CPC (source: EP US)
A61B 3/06 (2013.01 - EP US); A61B 3/103 (2013.01 - EP US)
Citation (search report)
See references of WO 2005070285A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2005070285 A1 20050804; AU 2004314137 A1 20050804; CN 1905834 A 20070131; DE 102004003688 A1 20050818; EP 1708611 A1 20061011; JP 2007518500 A 20070712; US 2007008493 A1 20070111
DOCDB simple family (application)
EP 2004014278 W 20041215; AU 2004314137 A 20041215; CN 200480040890 A 20041215; DE 102004003688 A 20040124; EP 04821177 A 20041215; JP 2006549909 A 20041215; US 48466706 A 20060712