Research of double-cranny eccentric photorefraction device
- VernacularTitle:双裂隙偏心摄影验光仪研究
- Author:
Fen ZHENG
;
Qin ZHOU
- Publication Type:Journal Article
- Keywords:
photorefraction device;
image processing;
diopter
- From:
Chinese Medical Equipment Journal
1989;0(04):-
- CountryChina
- Language:Chinese
-
Abstract:
In order to improve the performance of the photorefraction device,shorten the detection time and improve the accuracy of measuring,the theory of a new kind of double-cranny eccentric photorefraction device is described.Some features and key point of technology are emphatically pointed out.A method is put forward to determine the ocular diopter by image processing.
