Why are BK7 windows preferred for optics?
Low cost
BK7 windows are preferred for optics due to their low cost compared to other optical materials. This makes them an economical choice for a wide range of applications in optics.
Good optical properties
BK7 windows have good optical properties, including high transmission in the visible and near-infrared spectrum. They have low absorption and scatter, making them suitable for use in a variety of optical systems.
Good mechanical properties
BK7 windows have good mechanical properties, including high hardness and resistance to thermal shock. This makes them durable and able to withstand harsh environmental conditions, making them suitable for a wide range of applications.
Easy to fabricate
BK7 windows are easy to fabricate, making them a popular choice for optical components. They can be easily shaped and polished to achieve the desired optical surface finish, allowing for precise control of the light transmitted through them.In conclusion, BK7 windows are preferred for optics due to their low cost, good optical properties, good mechanical properties, and ease of fabrication. These qualities make them a versatile and reliable choice for a wide range of optical applications.
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