Sapphire windows that combine light transmittance in the UV to IR range (approximately 5μm) with stability against heat, acids, and bases.
Sapphire has the following characteristics: - Wide transmission properties (UV to near-infrared (approximately 5μm)) - Hardness (Vickers hardness: 1750 (a-plane)) - Chemically stable (almost insoluble in acids and alkalis, does not lose transparency) - Heat resistant (melting point: 2040°C) - Good thermal conductivity (42W/mK at 25°C) Due to its strength to withstand harsh environments and excellent optical properties, it is one of the materials that can solve the challenges of glass and fluorides. In recent years, it has become possible to grow large crystals of about 300mm, allowing for a wider range of applications.
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basic information
*Sapphire Cultivation method: TSMG method, Bernoulli method, etc. Purity: ≧99.99% Size: Approximately up to 300mm *As a crystal manufacturer, we always have a range of sapphire crystal grades available, from high-quality materials for UV optical components to low-cost materials for cover applications, allowing for selection based on your needs. *We also accept optical coatings such as AR. Crystal system: Trigonal system (Corundum structure) Lattice constants: a=0.47588nm, c=1.2992 Melting point: 2040℃ Density: 3.987g/cm3 Hardness: Vickers hardness 1750 (a-plane) Transparency: 235nm to 5μm (varies with thickness, etc.) Thermal conductivity: 42W/mK (at 25℃) Refractive index: no=1.7680, ne=1.7596 (at 590nm)
Price information
Prices may vary depending on size, quantity, and specifications. Smaller items with a diameter of 30mm or less are offered at relatively affordable prices.
Price range
P2
Delivery Time
※Delivery times may vary depending on size, specifications, accuracy, quantity, and other factors. Please feel free to contact us.
Applications/Examples of results
* Visible to infrared transmission window * Coin reading window * Window requiring high reliability * Flame detection sensor window * Laser transmission window * Airtight sealing transmission window * Endoscope window, etc.
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Company information
Our company is a manufacturer of oxide single crystals. In particular, we specialize in the following products: 1. Sapphire (α-Al2O3) 2. SrTiO3 3. Rutile (single crystal of TiO2). Although we are a crystal manufacturer, we also perform a full range of processing, including cutting, grinding, and polishing. Having handled crystals for over 70 years since our founding, we possess extensive knowledge and experience, especially regarding sapphire. Recently, we have also been mass-producing sapphire crystals larger than 300mm, allowing us to accommodate large-shaped products and mass production. We are a small company with about 170 employees, but please feel free to contact us if there is anything we can assist you with.
