Description for glass dome lens
- Raw material of optical glass dome: Pyrex, Optical glass.
- Processing of optical glass dome: by Molding, Grinding, Polishing
- Surface quality of optical glass dome: optical surface quality and well controlled tolerance
- Inside quality of optical glass dome: clear and transparent, no mold marks, no inside bubble and dirts,
- Function of optical glass dome: Protecting lenses
- Application of optical glass dome: Lighting system, Electronics, Electrical apparatus, Industries.
Category |
Optical Glass Lens |
Item |
Glass Dome |
Material |
Optical glass BK7, K9, Fused Silica, etc. |
Dimension |
2-200mm |
Dimension Tolerance |
+0/-0.2mm |
Center Thickness Tolerance |
+/-0.2mm |
Focal length |
±2% |
Centration |
<3 arc min |
Clear Aperture (CA) |
>90% |
Transmittance |
98% |
Wavelength |
400-700nm |
Fringe |
1-5 |
Irregularity of Fringes |
0.2-0.5 |
Surface Quality(S/D) |
60/40 scratch and dig |
Chamfer |
<0.5mmx45 degree |
Coating |
Both side Antireflection Coatings |
Special size can be offered upon request. All dimensions are in mm unless otherwise specified.