Hard coat broadband filters
Our first-surface, hard-coat, broadband filters employ magnetron sputtered, hard-oxide coatings deposited on Borosilicate Glass and do not utilize any absorbing filter glasses, making them suitable for high temperature applications.
Description
Our first-surface, hard-coat, broadband filters employ magnetron sputtered, hard-oxide coatings deposited on Borosilicate Glass and do not utilize any absorbing filter glasses, making them suitable for high temperature applications. They provide a steep transition from a high, peak transmission to OD4 blocking. Available at standard Raman wavelengths: 488, 514, 532, 633, 785nm. We offer three standard sizes, with custom sizes available on request.
Features
- First surface, hard sputtered coating
HARD-COATED BROADBAND BENEFITS
- Hard, durable, first-surface coatings
- Suitable for high-temperature applications
- Available from stock
HARD-COATED BROADBAND COMMON APPLICATIONS
- Raman Spectroscopy
- Machine Vision
- Biotech instrumentation
- Medical devices
Specifications
| General Specifications | |
|---|---|
| Thickness | 3.0±0.25 mm |
| Size Tolerance | +0.0 mm / -0.2 mm |
| Minimum Clear Aperture | 85% of outside dimension |
| Substrate Material | Borosilicate Glass |
| Flatness | 3 – 5 waves |
| Surface Quality | 60 – 40 per MIL-C-48497A |
| Humidity and Abrasion | Per MIL-C-675A |
| Durability | Per MIL-C-48497A |
| Operating Temperature | -50 °C – +200 °C |
| Mechanical | Unmounted |
| Optional: Mounted in the threaded ring – contact our expert on the right for thread sizes | |
Types
|
CW/L (nm)
|
FWHM (nm)
|
Line
|
Transmission
T (avg.) |
OD4 (avg.)
Blocking @ (nm) |
Part Number
|
|---|---|---|---|---|---|
| 335 441.6 470 |
80±-8.0 150±15.0 100±10.0 |
Zinc He/Cd laser LED |
≥75% ≥80% ≥90% |
200-650 200-850 200-850 |
355HC80 442HC150 470HC100 |
| 488 514 532 |
80±8.0 80±8.0 150±15.0 |
Argon laser Argon laser Na:YAG |
≥90% ≥90% ≥90% |
200-850 200-850 200-950 |
488HC80 515HC80 532HC150 |
| 550 632.8 785 |
300±30.0 90±9.0 150±15.0 |
LED HeNe Sapphire |
≥90% ≥90% ≥90% |
200-1000 200-1000 200-1100 |
550HC300 633HC90 785HC150 |
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