Traditional Perimeter

■ Radius of stimulator: 300mm±5mm

■ Stimulating source of LED

■ Two visual lights: yellow and red.

■ Stimulating strength: From 0nt (0asb) to318.310nt (1000asb), have 14 degree to adjust, the error is±10%.

● Error of background brightness: 4asb±10%

● Light spot: Diameter is 2mm +/- 0.25mm.

● The number of stimulating and the stimulating time:

388 spots (Red light: 61spots, yellow: 327spots);

stimulating retention time: 0.2s--2.0s, the program can adjust (±5%);

stimulating spacing interval: 0.5s --2.0s, the program can adjust (±5%);

● Window of eye-position tracking: White-black CCD, directly tracking the   testing eye;

● The length of chin rest: up-down: 80mm±10%;  right-left 115mm±10%

     ■ Eye position tracking: When blinking, the system will alarm automatically.