Custom-fabricated large sapphire windows for use protecting electronics in aircraft and drones that fly in harsh weather and demanding environments have been introduced by Providence, Rhode Island-based Meller Optics Inc. Meller Large Sapphire windows can be fabricated in different configurations and sizes up to 10-in. in diameter, depending on the diameter-to-thickness aspect ratio. Featuring transmission from the UV to IR (270 nm to 4.7 microns), they are as clear as glass and provide ...


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