The bifocus lens are dispose two kind of light burnt on piece of lens, one kind is uses in to look far, one kind uses in to look near, the our company produces the invisible double burnt lens, are my factory scientific researcher through the careful optical design, the breakthrough tradition cold the craft, uses the brand-new craft manufacture to become.

1. Product category
A, fuses together the dome bifocus lens
B, fusion flat top bifocus lens
C, the fusion arc goes against the bifocus lens

2. Product variety
A, optics bifocus lens
B, changes the ash bifocus lens
C, changes the tea bifocus lens

3. Product specification
A, diameter: Phi 65mm phi 70mm
B, central thickness: 6-7mm
C, Steering:
+4/-6 hyperopia: +2.00 ~ -4.00DS
Attachment luminosity: +1.00 ~ +3.00DS
+6/-6 hyperopia: +4.00 ~ -2.00DS
Attachment luminosity: +1.00 ~ +3.50DS
+8/-6 hyperopia: +6.00 ~ +0.00DS
Attachment luminosity: +1.00 ~ +4.00DS
D, sub- piece diameter phi 28 phi 26 (to dome)
The sub- piece height 19 18 (to flat top, arc goes against)