Long-Wavelength Pass Filte
PRODUCT CATEGORIES
INOUIRY
- The long wave pass filter allows light with a wavelength greater than the set wavelength to pass through, and light with a wavelength less than the set wavelength is cut off.
- The long wave pass filter provided by Borisun optics has the advantages of wide cut-off band, deep cut-off depth, high conversion steepness and high transmittance. It can also be widely used in spectral measurement, optical imaging system, optical imaging system and so on.
Technical parameters
| Items | Parameters |
|---|---|
| Material | Optical grade float glass(B270) or UV fused quartz(JGS1) |
| Surface quality | 40/20- 60/40 |
| Effective aperture | 90% |
| Central wavelength（ λ C) Tolerance | ±2% |
| Parallel error | 30″ |
| Dimensional error | +0.0/-0.1mm |
| Transmitted wavefront error | λ/4@633nm |
| Transmittance | Tavg＞85% |
| Gradient of cutting band | ＜3% |
spectral curve
In addition, We can customize the optical filters according to customer requirements or drawings.
For details, please consult:
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