- Contact Person : Mr. Hu Johnny
- Company Name : Shanghai Bolan Optical-Electric Co., Ltd.
- Tel : 86-21-69225166
- Fax : 86-21-69225266
- Address : Shanghai,Shanghai,No. 29, Jiuyuan Road, Qingpu District
- Country/Region : China
- Zip : 201707
pupilary distance PD-668
The cornea reflection light coincidencemethod is used.This operates by aligning luminous point on the pupils with measuring line.Results are displayed digitally.3 measurements are given right, right+left, left.Results are accurate to within 0.5mm.Measurements can be made for a single eye or for both eyes.Possible to measure PD of focusing-point distances ranging from 30cm to infinity.Automatically switches OFF one minute after operation is completed, thusconserving powerMethod of measurement cornea reflection light coincidence methodRange of measurement 45 to 82MM (both eyes), 22.5 to 41MM (each eye)Graduations 0.5MMRange of focusing point 30 to infinityPower supply: 6V DC (Lr03 batteries X2)
pupilary distance PD-668
