Ervin Goldfain,Corinn C. Fahrenkrug,Daniel C. Briggs
申请号：
US13487959
公开号：
US20130063699A1
申请日:
2012.06.04
申请国别(地区):
US
年份:
2013
代理人:
摘要：
A system for determining refractive eye aberrations includes an optical arrangement having a first conjugate lens having an effective focal length (EFL) of about 150 millimeters and a second conjugate lens having an EFL of about 88.9 millimeters. The first and second conjugate lens are each positioned in a housing along a return light path and are separated by a distance of about 238.9 millimeters. The arrangement enables a range of measurable diopters of an eye to be between about −10 diopters to about +10 diopters.
