उत्पत्ति के प्लेस
Zhejiang, China
Product name
auto perimeter
Stimulating source of LED:
Two visual lights: yellow and red
Error of background brightness:
4asb±10%
Window of eye-position tracking:
White-black CCD
Radius of stimulator:
300mm±5mm
Stimulating strength:
From 0nt (0asb) to318.310nt (1000asb)
Light spot Diameter:
2mm +/- 0.25mm
stimulating retention time:
0.2s--2.0s
The length of chin rest:
80mm±10%