Date：2019-06-25 Click：377
We design and manufacture high quality astronomy filters using single substrates of the best glass, eliminating the need for laminations. The product wavelength is highly precise and accurate, do not drift in response to extreme temperature fluctuations or changes in humidity.
General Specifications
|
Size/nm |
1.25〃 |
2〃 |
φ31 |
φ46 |
52×52 |
|
Clear Aperture/mm |
≥85% |
≥85% |
≥85% |
≥85% |
≥85% |
|
Thickness/mm |
1.85 |
1.85 |
1.85 |
1.85 |
1.85 |
|
Incident Angle |
0° |
||||
|
Surface Quality |
80-50 Scratch-Dig |
||||
|
Reliability & Durability |
Environmental: MIL-STD-810F, Physical: MIL-C-48497A |
||||
|
Substrate Material |
Optical Glass |
||||
Note: we can accept custom size.
■ OⅢ filter；
A measured spectrum for OⅢ narrow bandpass filter
T≥94%@500.7nm, FWHM = 6.5nm
■ H-Alpha filter；
A measured spectrum for H-Alpha narrow bandpass filter
T≥95%@656.3nm, FWHM = 7 nm
■ SⅡ filter；
A measured spectrum for SⅡ narrow bandpass filter
T≥94%@671.6nm, FWHM = 6.5nm
