High Transmission UV Bandpass Filters
Asahi Spectra
- High transmission and high rejection in UV wavelengths
- 10nm FWHM
- Will not autofluorescence
- Excellent thermal resistance
Our high transmission UV filters set the new standard in UV bandpass filter performance and reliability. These filters achieve >60% - 70% transmission at the UV wavelengths from 254nm - 390nm, and offer blocking of OD3.0 (0.1%) at the rejection bands.
One of the unique feature is that rejected light is reflected instead of absorbing, easing stray light management issues. Our high transmission UV filters provide you to simplify system setup. Each filter performs yielding the maximum brightness and contrast in any UV application.
Specifications
Material
Fused Silica substrates mounted in aluminum ring
Dimension Tolerance
+0.0/-0.2mm (25mm dia.)
Thickness
5.50mm +0.5/-0.5mm
Clear Aperture
22mm dia. (25mm dia.)
Blocking
CWL Tolerance
+2/-2nm
FWHM Tolerance
+2/-2nm
Angle of Incidence
0 degrees
| Center Wavelength (CWL) | Full Width-Half Maximum (FWHM) | Peak Transmittance (min.) | Rejection Band | Item# |
|---|---|---|---|---|
| 25mm dia. | ||||
| 254nm | 10nm | 60% | 200-450nm | XHQA254 |
| 260nm | 10nm | 60% | 200-450nm | XHQA260 |
| 270nm | 10nm | 60% | 200-450nm | XHQA270 |
| 280nm | 10nm | 60% | 200-450nm | XHQA280 |
| 290nm | 10nm | 60% | 200-450nm | XHQA290 |
| 300nm | 10nm | 60% | 200-520nm | XHQA300 |
| 310nm | 10nm | 60% | 200-520nm | XHQA310 |
| 313nm | 10nm | 60% | 200-520nm | XHQA313 |
| 320nm | 10nm | 65% | 200-520nm | XHQA320 |
| 330nm | 10nm | 65% | 200-520nm | XHQA330 |
| 334nm | 10nm | 65% | 200-520nm | XHQA334 |
| 340nm | 10nm | 65% | 200-520nm | XHQA340 |
| 350nm | 10nm | 65% | 200-520nm | XHQA350 |
| 360nm | 10nm | 70% | 200-520nm | XHQA360 |
| 365nm | 10nm | 70% | 200-520nm | XHQA365 |
| 370nm | 10nm | 70% | 200-520nm | XHQA370 |
| 380nm | 10nm | 70% | 200-520nm | XHQA380 |
| 390nm | 10nm | 70% | 200-520nm | XHQA390 |
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