Filters
Filters include interference filters with optical coating and colored-glass (absorbing filters). Filters pass or cutoff certain wavelength or band, filters are extensively used in areas including life science, imaging systems, color temperature adjustment, industrial testing or defense industry. Control Optics provides hard coating with high density and high durability for various applications.
Filter Specifications
|
Material |
BK7, B270, Borofloat glass, PYREX glass, Synthetic quartz, Fused quartz, Fused silica, D263T, Eagle XG, Soda-lime glass, as well as various leading-brand materials including OHARA, SCHOTT, CORNING, ASAHI GLASS, NIPPON SHEET GLASS, NIPPON ELECTRIC GLASS, and designated brands. |
|
Diameter |
1mm~600mm |
|
|
Low grade |
General grade |
High grade |
|
Diameter tolerance |
+/-0.5 |
±0.1mm |
±0.01mm |
|
Surface quality S/D |
80/50 |
60/40 |
20/10 |
|
Parallelism |
3’ |
1’ |
30” |
|
Surface flatness |
2λ@ 633nm |
λ/2 @ 633nm |
λ/10 @ 633nm |
|
Thickness tolerance |
+/-0.2 |
±0.1mm |
±0.01mm |
|
Coating |
Multilayer Dielectronic Coating |
Multilayer Dielectronic Coating |
Multilayer Dielectronic Coating |
