IR bandpass filters 1890–2310 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 |
|---|---|---|
| 1890±10 | 55±10 | bk-1890-055-A |
| 1890±10 | 100±15 | bk-1890-100-A |
| 1900±10 | 40±7 | bk-1900-040-A |
| 1900±100 | 55±10 | bk-1900-055-A |
| 1900±10 | 65±10 | bk-1900-065-A |
| 1900±20 | 200±20 | bk-1900-200-A |
| 1905±5 | 10±3 | bk-1905-010-A |
| 1910±10 | 30±5 | bk-1910-030-A |
| 1910±10 | 52±10 | bk-1910-052-A |
| 1915±10 | 60±10 | bk-1915-060-A |
| 1915±10 | 100±15 | bk-1915-100-A |
| 1920±10 | 42±10 | bk-1920-042-A |
| 1925±3 | 50±4 | bk-1925-050-B |
| 1925±10 | 100±15 | bk-1925-100-B |
| 1930±5 | 10±3 | bk-1930-010-B |
| 1930±10 | 55±7 | bk-1930-055-B |
| 1930±10 | 70±10 | bk-1930-070-B |
| 1930±10 | 100±15 | bk-1930-100-B |
| 1935±10 | 40±7 | bk-1935-040-B |
| 1935±10 | 110±10 | bk-1935-110-B |
| 1940±5 | 10±3 | bk-1940-010-B |
| 1940±10 | 30±5 | bk-1940-030-B |
| 1940±10 | 100±15 | bk-1940-100-B |
| 1945±10 | 45±7 | bk-1945-045-B |
| 1945±10 | 85±10 | bk-1945-085-B |
| 1950±10 | 28±5 | bk-1950-028-B |
| 1960±10 | 43±7 | bk-1960-043-B |
| 1960±10 | 110±10 | bk-1960-110-B |
| 1960±20 | 130±20 | bk-1960-130-B |
| 1965±10 | 20±5 | bk-1965-020-B |
| 1965±15 | 110±15 | bk-1965-110-B |
| 1970±10 | 43±7 | bk-1970-043-B |
| 1985±10 | 43±7 | bk-1985-043-B |
| 1995±10 | 55±7 | bk-1995-055-B |
| 2010±10 | 45±7 | bk-2010-045-B |
| 2015±15 | 110±25 | bk-2015-110-B |
| 2030±10 | 80±10 | bk-2030-080-B |
| 2060±10 | 45±7 | bk-2060-045-B |
| 2080±10 | 40±7 | bk-2080-040-B |
| 2080±10 | 90±15 | bk-2080-090-B |
| 2090±10 | 95±10 | bk-2090-095-B |
| 2100±5 | 10±3 | bk-2100-010-B |
| 2100±10 | 46±7 | bk-2100-046-B |
| 2100±15 | 100±15 | bk-2100-100-B |
| 2110±5 | 10±3 | bk-2110-010-B |
| 2115±5 | 10±3 | bk-2115-010-B |
| 2115±5 | 20±5 | bk-2115-020-B |
| 2120±10 | 90±20 | bk-2120-090-B |
| 2130±5 | 10±3 | bk-2130-010-B |
| 2140±20 | 50±10 | bk-2140-050-B |
| 2150±15 | 200±20 | bk-2150-200-D |
| 2160±20 | 30±10 | bk-2160-030-B |
| 2165±5 | 10±3 | bk-2165-010-B |
| 2170±10 | 43±7 | bk-2170-043-B |
| 2170±20 | 48±8 | bk-2170-048-D |
| 2175±5 | 10±3 | bk-2175-010-B |
| 2180±5 | 10±3 | bk-2180-010-B |
| 2180±10 | 43±7 | bk-2180-043-B |
| 2180±20 | 100±20 | bk-2180-100-B |
| 2190±5 | 10±3 | bk-2190-010-B |
| 2200±10 | 48±7 | bk-2200-048-B |
| 2200±15 | 100±20 | bk-2200-100-B |
| 2210±5 | 10±3 | bk-2210-010-B |
| 2220±5 | 10±3 | bk-2220-010-B |
| 2225±10 | 45±7 | bk-2225-045-B |
| 2230±5 | 10±3 | bk-2230-010-B |
| 2250±5 | 10±3 | bk-2250-010-B |
| 2260±10 | 90±10 | bk-2260-090-B |
| 2270±5 | 10±3 | bk-2270-010-B |
| 2275±10 | 45±7 | bk-2275-045-B |
| 2280±15 | 45±7 | bk-2280-045-B |
| 2290±10 | 70±10 | bk-2290-070-B |
| 2300±5 | 10±3 | bk-2300-010-B |
| 2310±5 | 10±3 | bk-2310-010-B |