Specifications |
Material |
BK7,UV grade fused
silica or Sapphire |
Dimension
Tolerance |
+0.0~0.25mm |
Center Thickness |
¡À0.2mm |
Focal Length
Tolerance |
¡À1% |
Surface Quality |
S/D=60/40 |
Surface Figure |
¦Ë/2@ 633nm |
Clear Aperture |
>85%
|
Centration |
<5 minutes(f¡Ü50mm),or
<3 minutes(f>50mm) |
Chamfer |
0.25mm at
45¡ãtypical |
Coating |
Optional |
Note:
1. LWT has the capability
to provide micro lenses(<3mm in dia.) or large lenses(>150mm in dia.);
2. Particular focus are
able to be designed according to customer¡¯s need;
3. Coatings for laser
application are available upon request. |