Ray Vision/ Products/ Refractive/ Vision Tester/ Vida

Vida

DWL↓ Request A Quote →

Quick,easy and accurate refractions

Precision engineering for superior performance

Extended measurement range Multi-coated lenses

Synchronized cross cylinders

Wide testing range

Available in both standard black and white color


Sphere power Range:+16.75D to -19.00D,with minimum reading 0.25D or 0.12D

(when+0.12D auxiliary lens or optional ±0.12D lens in use)

+26.75D to -29.00D(when optional±10.00D lens is in use)

Cylinder power range:0 to-6.00D,with minimum reading 0.25D or 0.12D

(when auxiliary lens is in use)

0 to-8.00D (when-2.00D auxiliary lens is in use)

Astigmatic axis scale:0 to 180°in 5°steps

Cross cylinder:±0.25D,reversal type(synchronized with astigmatic axis)±0.50D optionalRotary prism:0 to 20△D in 1△D step

PD adjustment:48mm to 80mm in 1mm step(right and left synchronized)Forehead rest adjustment:16mm backward and forwardConvergence:

The optical axes of the lenses are aligned at a distance of 400mm from the vertexes of the corneas(2mm each for right and left inward)Interpupillary distance enabling convergence=57mm to 80mCorneal distance device:2mm forward and 5mm backward from standard plane;with scaleEffective field of view:19mm


  • Contact Information
  • Ray Vision
  • Tel: (86 10) 87162046
  • Fax: 86-10-87765647
  • Email: info@ray-vision.com
  • www.ray-vision.com

Copyright © 2009-2014 Ray Vision Intl Corp. 京ICP备20023928号-2