| Applications: | Due to its selective absorption in visible wavelength range, color glass filter will exhibit various color depending the glass type. Color glass filter provides an economical filter for various applications. Optical glass filters are widely used in safety glasses, industrial measurement, regulation technology and environment protection. | |||
| ◆Yellow glass | ||||
| ◆Orange glass | ||||
| ◆Red and black glass, IR transmitting | ||||
| ◆Black blue glasses, ultraviolet transmitting | ||||
| ◆Colorless glass with high transmission in the visible and absorption in the IR range (heat protection filters) | ||||
| ◆Neutral glass with uniform attenuation in the visible range | ||||
| Color Glass Filter | ||||
| Diameter Tolerance | +0.0/-0.2mm | |||
| Clear Aperture | >90% | |||
| Thickness Tolerance | ±0.2mm | |||
| Surface Quality | 80/50 scratch and dig | |||
| Flatness | <2λ@632.8nm | |||
| Parallelism | <5 arc min | |||
