Sapphire window is an extremely thin slice optical component created by single crystal sapphire. When you really need to increase transmitting, reduce glare and protect important electronic devices or mechanical components from large-scale extreme environment conditions, sapphire windows can come in handy.
Owing to its extreme hardness and inertness sapphire window is a great choice where there is a need for a really robust optical material to be used.
Why Should we Use Sapphire Window?
Anytime we mention sapphire, what comes to our minds are the sapphire gem stones, was found in nature. This is a limited resource and it is very expensive. This sapphire windows is made from synthetic sapphire and created in factory. AL2O3 is a transparent material of the hardest (HK1370 kg / mm2) type next to diamonds. This particular hardness means that we can develop thinner windows of improved transmittance.
Sapphires perform well under very severe environmental conditions as extreme heat, corrosive chemicals, and has high levels of scratch and wear resistance. Uncoated substrates are chemically inert, insoluble in water, common acid solution or alkalis and can operate at temperatures as high as 2030 ° C with an impressive structural integrity, which can make sapphire windows ideal for scenarios where extreme environmental conditions are likely.
How are Sapphire Windows Created
Lightweight aluminum oxide types and non-crystalline sapphire materials are coupled with a particular method to blend specific proportions. The combination is machined in a furnace and the temperature is about 2204 degrees C. Only at that temperature, the materials are melted. Once all materials are blended together, it is treated by a cooling cycle to form sapphire crystals. This is synthetic sapphire.
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The sapphire boule then passes the cutting process. It is cut into small pieces, then cubes into thin sapphire sheets. This entire cutting process is usually carried out through a good exact CNC operation, ensuring maximum utilization of sapphire, and is closer to zero waste based on the design and specifications of the final sapphire window to be manufactured. Waste of the CNC cutting process is very small, the manufacturer can thus set the price of their sapphire window within standards.
Advantages of the Sapphire Window
The sapphire window has inherited all its USP from its high quality material sapphire. Here are some of the reasons, why is it in such a high demand.
- The sapphire window is scratch and wear resistant.
- It transmits excellently in the whole noticeable and medium infrared spectrum.
- Sapphire window provides good structural strength.
- It can be thinner than other light windows.
- Sapphire window has a wide wavelength range of 0. 15 to 5. 5 μm.
- It is resistant to ultraviolet radiation.
- The sapphire window performs very well at high temps in the atmosphere, which can withstand high pressure, high temperature load.
- It is extremely suitable in rust environments.
- This can transmit a number of lights from infrared (IR) to ultraviolet.
Uses of Sapphire Window
Sapphire window optical components are used in various applications, with good sturdiness or broad spectrum range. One particular use of the sapphire window is as a wristwatch glass. This is mainly to guard delicate components, while providing the strength and toughness. It is steady in sending light, therefore it is well suited for safeguarding a number of IR detectors such as open fire detectors, individual sensors, NDIR fuel analyzers, water sensors, human being detectors, non-contact heat measurements. Because of its excellent wear resistance, sapphire glass is popular in water entry, professional cameras, Lake water level calculating instruments, barcode visitors, card readers, gold coin sensors, etc.
It is also utilized in medical tools such as filters for laboratory testing because sapphire is high purity and is not easy to deform. A sapphire window is ideal for applications that needs to withstand UV light under harsh conditions. These applications include fire alarms, chemical substance densitometers, UV healing, photo-lithography, various types of UV lights, and more.
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