IPL Filter & IPL crystal (IPL light guide) IPL Filter is the key optical element for IPL (intense Pulsed Light) machine, which filter the UV wave and reserve the useful wave from 400nm to 1200nm for cosmetic laser, such as hair removal, vascular and acne treatment.
Dongqiao fabricate all kinds of IPL Filter & Internal Filters, which made by BK7 Glass, Fused silica or sapphire crystal. The available coating wavelengths are 495, 515, 550, 560, 570, 590, 615, 645, 695, 755 and 780 nm.
We fabricate the IPL light guide (IPL crystal) with optical grade BK7, fused silica or sapphire crystal. All the 6 surfaces are fine polished to get the high transmission efficiency.
IPL Filter Specifications
Material
N-BK7,Fused silica, quartz,or Sapphire crystal
Dimension Tolerace
+/-0.1(General), +/-0.01(High Precision)
Thickness Tolerance
+/-0.2 (General), +/-0.005(High Precision)
Surface Quality
60/40 Scratch/Dig
Clear Aperture
>90%
Parallelism
<3 arc min. (General) , <5 arc sec.(High Precision)