IR bandpass filters 3620–6670 nm
A bandpass filter transmits light within a defined wavelength range, known as the passband. Blocking regions on either side suppress unwanted radiation, allowing a selected spectral range to pass.
General parameters
- Transmission
- > 50%
- Blocking
- < 0.1% of UV
- Ø 25.4mm
- CA > 22mm
- A
- up to 3200nm
- B
- up to 3500nm
- C
- up to 6500nm
- D
- up to FIR
- E
- up to 10500nm
- F
- up to 16500nm
- E**
- up to 13000nm
Stock range
Scroll the table sideways and down as needed.
| CWL [nm] | FWHM [nm] | Order No.: ø25,4mm CA > 22mm |
|---|---|---|
| 3620±20 | 42±10 | bk-3620-042-D |
| 3640±10 | 45±10 | bk-3640-045-C |
| 3640±20 | 165±25 | bk-3640-165-D |
| 3700±40 | 110±15 | bk-3700-110-D |
| 3800±10 | 45±10 | bk-3800-045-C |
| 3800±38 | 180±15 | bk-3800-180-D |
| 3850±50 | 75±25 | bk-3850-075-D |
| 3890±40 | 110±15 | bk-3890-110-D |
| 3900±40 | 110±15 | bk-3900-110-D |
| 3910±30 | 17±10 | bk-3910-017-D |
| 3940±40 | 100±15 | bk-3940-100-D |
| 3950±50 | 100±20 | bk-3950-100-D |
| 3960±20 | 30±10 | bk-3960-030-D |
| 3985±25 | 115±10 | bk-3985-115-D |
| 4000±25 | 120±20 | bk-4000-120-D |
| 4040±25 | 50±20 | bk-4040-050-D |
| 4065±20 | 160±25 | bk-4065-160-D |
| 4190±25 | 50±20 | bk-4190-050-D |
| 4225±20 | 190±20 | bk-4225-190-D |
| 4240±25 | 200±25 | bk-4240-200-D |
| 4250±45 | 115±15 | bk-4250-115-D |
| 4270±20 | 60±20 | bk-4270-060-D |
| 4270±25 | 85±10 | bk-4270-085-D |
| 4280±25 | 20±10 | bk-4280-020-D |
| 4300±45 | 200±25 | bk-4300-200-D |
| 4310±10 | 20±5 | bk-4310-020-D |
| 4350±10 | 20±5 | bk-4350-020-D |
| 4350±50 | 200±25 | bk-4350-200-D |
| 4510±20 | 100±20 | bk-4510-100-D |
| 4540±20 | 75±15 | bk-4540-075-D |
| 4560±50 | 260±40 | bk-4560-260-D |
| 4630±40 | 180±20 | bk-4630-180-D |
| 4675±25 | 140±25 | bk-4675-140-D |
| 4700±47 | 80±10 | bk-4700-080-D |
| 4700±60 | 100±20 | bk-4700-100-D |
| 4700±25 | 220±25 | bk-4700-220-D |
| 4715±50 | 90±20 | bk-4715-090-D |
| 4720±10 | 90±20 | bk-4720-090-D |
| 4750±60 | 100±15 | bk-4750-100-D |
| 4770±50 | 165±25 | bk-4770-165-D |
| 4775±15 | 100±15 | bk-4775-100-D |
| 4800±30 | 350±30 | bk-4800-350-D |
| 5150±50 | 125±25 | bk-5150-125-D |
| 5200±55 | 115±20 | bk-5200-115-D |
| 5225±55 | 300±30 | bk-5225-300-D |
| 5250±25 | 125±25 | bk-5250-125-D |
| 5250±50 | 270±30 | bk-5250-270-D |
| 5270±25 | 125±15 | bk-5270-125-D |
| 5300±50 | 175±20 | bk-5300-175-D |
| 5300±50 | 200±50 | bk-5300-200-D |
| 5320±30 | 245±25 | bk-5320-245-D |
| 5325±50 | 200±25 | bk-5325-200-D |
| 5360±50 | 080±20 | bk-5360-080-D |
| 5360±30 | 275±25 | bk-5360-275-D |
| 5420±50 | 500±50 | bk-5420-500-D |
| 5445±30 | 460±25 | bk-5445-460-D |
| 5500±50 | 275±50 | bk-5500-275-D |
| 5550±70 | 80±25 | bk-5550-080-D |
| 5600±40 | 80±25 | bk-5600-080-D |
| 5710±20 | 90±20 | bk-5710-090-D |
| 5750±40 | 80±20 | bk-5750-080-D |
| 5820±25 | 95±20 | bk-5820-095-D |
| 5950±25 | 140±25 | bk-5950-140-E |
| 6075±30 | 140±25 | bk-6075-140-E |
| 6100±60 | 140±25 | bk-6100-140-E |
| 6150±30 | 140±25 | bk-6150-141-E |
| 6250±70 | 100±35 | bk-6250-100-E |
| 6350±60 | 185±30 | bk-6350-185-E |
| 6470±30 | 100±30 | bk-6470-100-E |
| 6520±40 | 100±20 | bk-6520-100-E |
| 6570±25 | 100±25 | bk-6570-100-E |
| 6600±25 | 100±30 | bk-6600-100-E |
| 6640±25 | 100±30 | bk-6640-100-E |
| 6670±25 | 100±25 | bk-6670-100-E |
| 1670±25 | 100±25 | bk-1670-100-E |