Cold Mirror MC45-25.4
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United States
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On FindLight:
since 2015
Description
Hot and Cold Mirrors are essential optical components designed to manage light and heat in various applications. These mirrors are crafted with precision to either reflect or transmit specific wavelengths, making them invaluable in both scientific and industrial settings. Their unique properties allow them to efficiently separate visible light from heat, ensuring optimal performance in demanding environments.
Hot Mirrors are specifically engineered to reflect infrared radiation while allowing visible light to pass through. This capability is achieved using Borosilicate type glass, which is known for its high-temperature resistance. The preferred angle of incidence (AOI) for hot mirrors is 0º, and they are most effective within a wavelength range of 420-700nm for transmission and 800-1000nm for reflection. These mirrors are ideal for applications where heat management is critical, as they can reflect more than 95% of infrared light, thereby minimizing heat buildup.
Cold Mirrors, on the other hand, are designed to reflect visible light while transmitting infrared radiation. This makes them perfect for applications where it is necessary to remove heat by transmission. Cold mirrors operate optimally at an AOI of 45º and are most effective within a transmission range of 800-1200nm. They reflect more than 95% of visible light, ensuring that the desired light is efficiently utilized while unwanted heat is dissipated.
Both hot and cold mirrors are available in various sizes and can be customized to meet specific requirements. They are constructed using dielectric multilayer coatings, which enhance their reflective and transmissive properties. With a focus on quality and precision, these mirrors are an invaluable addition to any optical system requiring effective light and heat management.
Cold Mirror MC45-25.4
Specifications |
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|---|---|
| Diameter: | 25.4 mm |
| Thickness: | 3.3 mm |
| Surface Flatness: | lambda/2 |
| Surface Quality: | 80-50 scratch-dig |
| Transmission: | 85 % |
| Reflection: | 90 % |
| Transmission Range: | 750 – 1000 nm |
| Reflection Range: | 400 – 700 nm |
Features
- High Visible Transmission (Hot Mirrors): Over 85% transmission in 420–700 nm range
- High Infrared Reflection (Hot Mirrors): More than 95% reflection in 800–1000 nm range
- High Visible Reflection (Cold Mirrors): Reflects over 95% in the 400–700 nm range
- High Infrared Transmission (Cold Mirrors): Over 85% transmission from 800–1200 nm
- Durable Borosilicate Glass: Ensures thermal resistance and reliability
- Dielectric Multilayer Coating: Provides long-term optical stability
- Wide Size Range: Available from 15 mm to 300 mm with 3.3 mm thickness
- Custom Options: Configurable coatings and dimensions for specialized needs
Applications
- Projection Systems: Manage heat while maintaining bright visible light output
- Illumination Systems: Reflect or transmit infrared to enhance efficiency
- Imaging and Sensing: Control spectral content for precision optical systems
- Laser and Photonics Devices: Protect sensitive components from thermal load
- Industrial and Scientific Instruments: Reliable separation of light and heat in
- demanding environments
Frequently Asked Questions
Hot mirrors are used in applications when there is a requirement to separate visible light from heat.
The hot mirror accomplishes this by reflecting the heat.
The most common wavelength range for transmission through the cold mirror is 800 - 1200nm.
The average transmission range for a cold mirror is T>85%.
Operation at an AOI of 45º is preferred.