概述
Tinted glass filters refer to the addition of special elements in the glass melting process, so as to produce absorption of different spectral bands and pass through other bands, widely used in laser protection, industrial measurement, etc. Due to the inherent absorption or transmission characteristics of the material, compared with dielectric coating filters, the center wavelength of colored glass filters does not change for beams incident at different angles of incidence. In addition, long-wave pass filters refer to filters that suppress the short-wave region and transmit the long-wave region.
General parameters
| Material | Stained glass | Dimensional tolerances(mm) | ±0.1 |
| Thickness tolerance(mm) | ±0.1 | Parallelism | <3ˊ |
| Surface | 40-20 |
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