Hot Mirror, 50.8 x 50.8 mm, 0° AOI, 420-690 nm Transmittance

The 20HMS-0 Hot Mirror is a 50.8 x 50.8 mm square 0° mirror used as a heat control filter. Our hot mirrors are heat-reflecting shortpass filters designed to transmit 420-690 nm visible wavelengths while reflecting 725-1550 nm near-infrared heat generating wavelengths. These filters can be used to remove heat from an optical system.
Specifications
- TypeHot Mirror
- Optic Size50.8 x 50.8 mm
- Angle of Incidence0° ±15°
- Transmittance Range420-690 nm
- Transmission≥85%
- Reflectance Band725-1550 nm
- ReflectanceRavg≥90% 725-1550 nm
- MaterialBorofloat® borosilicate float glass
- Surface Quality80-50 scratch-dig
- Surface Flatness6–8λ per 25.4 mm at 546.1 nm over the clear aperture
- Thickness3.3 mm
- Thickness Tolerance±0.2 mm
- Size Tolerance±0.4 mm
- Clear Aperture≥central 90% of dimensions
- Temperature Range-100 to 500°C
- Cleaning
Resources & Downloads
Other
20HMS-0 RoHS Certificate(264.5 kB, PDF) 20HMS-0_ROHS2-2021.pdf(279.3 kB, PDF)
2D Product Drawings
20HMS-0 and 20CMS-45 Drawing(84 kB, PDF)
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