Hot Mirror Description
- Features
- Efficient IR Reflection: The Hot Mirror efficiently reflects infrared (IR) light while allowing visible light to pass through, making it ideal for applications that require separation of the IR spectrum.
- High-Performance Optical Properties: These mirrors provide excellent optical properties, ensuring high reflectivity in the IR range and high transmission in the visible spectrum.
- Precise Wavelength Separation: Designed to effectively split light across different wavebands, ensuring that unwanted IR wavelengths are reflected back towards the energy source.
- Durability and Reliability: Hot Mirrors are constructed with high-quality materials to withstand high temperatures and provide long-term durability.
- Versatile Applications: Suitable for various high-temperature applications, such as laser systems, projection systems, and optical instruments.
- General Description
Shape Optics Technologies Pte Ltd (SOT) offers Hot Mirrors, optical components designed to separate visible and infrared (IR) light. These mirrors are commonly used in systems that need to isolate the heat-producing IR wavelength while allowing the cooler visible light to pass through to the target.
A Hot Mirror reflects the infrared radiation back toward the energy source while transmitting visible light to the target, making it ideal for use in systems where controlling the heat buildup is critical. These mirrors are typically utilized in precision optical systems, laser-based technologies, and illumination applications that need to avoid the accumulation of heat.
The primary distinction between Hot Mirrors and Cold Mirrors lies in their behavior towards visible and infrared light. Cold Mirrors reflect visible light while allowing IR wavelengths to pass through, typically used in illumination systems where high-temperature lighting is not desired. Hot Mirrors, on the other hand, are optimized to reflect harmful IR wavelengths, thereby ensuring the system’s efficiency by keeping the temperature controlled.
Hot Mirrors are frequently used in laser systems, digital projection apparatus, TV systems, and CCD imaging detection systems, among others.
- Spectrum Transmission Curves
If the standard components do not meet your specific requirements, SOT offers customized solutions. Custom designs can be tailored to meet your exact wavelength range and optical specifications. Please contact us for more details on customized options.
- Coating Quality
- Adhesion Test: The coatings used on Hot Mirrors are compliant with MIL-C-675C military standards. The adhesion test involved applying a tape that meets LT-90 specifications to the lens film layer, affixed fully, and then removed vertically three times with no blistering or peeling.
- Temperature Test: According to MIL-C-675C specifications, test pieces are subjected to temperatures of -62±1℃ and 71±1℃. After being kept at room temperature (16℃–32℃) for two hours, the adhesion test confirms no detachment of the film.
- Abrasion Resistance Test: The abrasion resistance test, conforming to MIL-C-675C and CCC-C-440 standards, applies a minimum force of 1.0 lbs (0.45 kg) to the film using a gauze tester, repeated for 25 cycles. The film shows no damage or wear.
- Humidity Test: Under MIL-C-675C guidelines, the Hot Mirror is placed in a controlled temperature and humidity chamber (49±2°C and 95%-100% humidity) for 24 hours. The film remains intact with no defects such as peeling or scratches.
- Solvent and Cleaning Test: The test involves exposure to acetone and alcohol at room temperature (16°C–32°C) for a minimum of 10 minutes. After air drying and cleaning, no peeling or scratching is observed.
- Salt Spray Test: After 100 hours in a 35°C environment with a 5% saltwater concentration, no damage is observed on the film, indicating resistance to corrosion.
- Standard Specifications
The Hot Mirror is manufactured according to the following standard specifications:
| Material | Size Range | Wavelength Range | Reflection | Transmission |
| Quartz, K9 | Φ3 – Φ200mm | 350 – 2000 nm | > 95% (800–1200 nm) | > 90% (450–650 nm) |
Note: Custom specifications are available upon request.
- General Applications and Examples
The Hot Mirror is used in a wide range of applications that require precise wavelength separation between visible and infrared light. Key applications include:
- Precision Optical Systems: Hot Mirrors are essential in systems requiring high precision and temperature control. By reflecting infrared light, they help prevent overheating of sensitive optical components.
- TV Systems and Digital Projection Apparatus: In television systems and projection systems, Hot Mirrors help maintain optimal image quality by preventing heat buildup, ensuring better performance.
- Laser Systems: Hot Mirrors are used in laser applications where the system needs to reflect IR light while allowing visible light to pass through, ensuring energy efficiency and the prevention of excess heat.
- CCD Imaging Detection Systems: These mirrors are commonly used in CCD (Charge-Coupled Device) imaging systems where it is important to separate the IR spectrum from visible light to enhance image quality.
Hot Mirrors are indispensable in systems requiring precise control of light wavelengths and temperature management, providing superior optical performance and longevity in demanding environments.
- SOT Strengths and Capabilities
Shape Optics Technologies (SOT) is a leading provider of high-quality optical components, specializing in precision mirrors, lenses, and filters. With a strong focus on customization, SOT ensures that each product meets the specific needs of our clients. Our Hot Mirrors are designed to provide superior performance in temperature-sensitive applications. We utilize state-of-the-art manufacturing techniques and stringent quality control to produce reliable and durable products for a variety of industries. Whether for precision optical systems, laser technologies, or imaging solutions, SOT provides the expertise and support required to meet your optical needs.
- Standard Products
The following Hot Mirrors are available as standard products:
| Size (mm) | Reflection | Transmission | Material | Product Code |
| Φ12mm | > 95% (800–1200 nm) | > 90% (450–650 nm) | Quartz, K9 | HM-12-95-90-01 |
| Φ50mm | > 95% (800–1200 nm) | > 90% (450–650 nm) | Quartz, K9 | HM-50-95-90-01 |
| Φ200mm | > 95% (800–1200 nm) | > 90% (450–650 nm) | Quartz, K9 | HM-200-95-90-01 |
Customization options are available. Please contact us for more details on specific requirements.
