COLD MIRRORS
A Cold Mirror is the inverse of the Hot Mirror, it reflects the visible and transmits the infrared. Their coatings are all first-surface variety and like the hot mirrors, are also deposited onto low expansion material such as borosilicate glass. These mirrors are usually used at a 45° angle of incidence in randomly polarized light.
BENEFITS
- Transmit near-IR and reflect visible light
COMMON APPLICATIONS
- Projection systems
- Photocopiers
- Surgical and dental lighting
- Film and photographic apparatus
- Illumination systems
- Scientific instruments
Cold Mirror General Specifications
| Thickness: | 3.0mm ±0.5mm |
| Size Tolerance: | +0.0mm/-0.5mm |
| Min. Clear Aperture: | 95% of outside dimension |
| Substrate Material: | Borosilicate glass |
| Flatness: | 5–10 waves per 25mm |
| Parallelism: | 3 arc minutes or better |
| Surface Quality: | 80/50 per MIL-O-13830 |
| Humidity and Abrasion: | Per MIL-C-675A |
| Max. Operating Temperature: | +200°C |
| Mechanical: Unmounted |
하기 링크 참조
https://www.andovercorp.com/products/heat-control-filters/cold-mirrors/
COLD MIRRORS
A Cold Mirror is the inverse of the Hot Mirror, it reflects the visible and transmits the infrared. Their coatings are all first-surface variety and like the hot mirrors, are also deposited onto low expansion material such as borosilicate glass. These mirrors are usually used at a 45° angle of incidence in randomly polarized light.
BENEFITS
- Transmit near-IR and reflect visible light
COMMON APPLICATIONS
- Projection systems
- Photocopiers
- Surgical and dental lighting
- Film and photographic apparatus
- Illumination systems
- Scientific instruments
Cold Mirror General Specifications
| Thickness: | 3.0mm ±0.5mm |
| Size Tolerance: | +0.0mm/-0.5mm |
| Min. Clear Aperture: | 95% of outside dimension |
| Substrate Material: | Borosilicate glass |
| Flatness: | 5–10 waves per 25mm |
| Parallelism: | 3 arc minutes or better |
| Surface Quality: | 80/50 per MIL-O-13830 |
| Humidity and Abrasion: | Per MIL-C-675A |
| Max. Operating Temperature: | +200°C |
| Mechanical: Unmounted |
하기 링크 참조
https://www.andovercorp.com/products/heat-control-filters/cold-mirrors/