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Cold light mirrors
Cold light mirrors reflect visible light and allow heat radiation to pass through
Cold light mirrors are employed in situations where the heat generated by infrared radiation must be minimised. These specialized mirrors, typically constructed on glass substrates, serve to separate visible radiation from undesired heat radiation. Essentially, cold mirrors reflect visible radiation while allowing heat radiation to pass through, rendering them transparent to infrared wavelengths. By doing so, they effectively mitigate the heat load within optical paths. They are therefore also referred to as heat-transmitting surface mirrors. They reduce the heat load in optical beam paths and are constructed with dielectric layers.
Advantages of cold mirrors
- Suppression of infrared radiation
- Very high reflection in the visible range
- Good transmission in the NIR-IR range up to approx. 2500 nm
- Dissipation of thermal radiation, efficient heat/light separation
- Spectral range: VIS to IR
- Angle of incidence can be adjusted
- Dielectric layer system
- Substrates: Float glass, borosilicate glass
Application examples for cold light mirrors
- Optics, optical device construction
- Optics for sensor technology / sensor systems, e.g. positioning systems, scanner technology, barcode recognition, etc.
- Optics for beam steering (deflecting mirrors)
- Illumination optics
- Laser applications / laser technology
- Medical technology / medical devices, e.g. with ultraviolet light sources
