Development of Optometer Controlled by Micro-computer / 医疗卫生装备
Chinese Medical Equipment Journal
;
(6)1993.
Article
in Chinese
| WPRIM
| ID: wpr-591627
ABSTRACT
Objective To develop a new optometer controlled by micro-computer.Methods With AT89C51 single-chip as hardware and programmed by C language,the instrument applied,the optometer adopted LCD and international standard optotype.The optotype had 14 lines of object-finders,and only one line of random characters was displayed on the screen every time.The optometry distance was 3m.All procedures were controlled by singlechip.Results The case of memorizing eye-chart was avoided and the optometry was every simple.Conclusion The instrument eliminates mirror used for optometry short distance,and the optometry results can be stored and printed.It also has the merits of small volume,precise manufacture,simple operation,low cost and AC/DC power supply.
Full text:
Available
Index:
WPRIM (Western Pacific)
Language:
Chinese
Journal:
Chinese Medical Equipment Journal
Year:
1993
Type:
Article
Similar
MEDLINE
...
LILACS
LIS