An Introduction to High Precision Optical Flats and Windows
Boosting your industry’s optical precision capabilities relies on leveraging the latest technological advancements. Great precision, standardized products, and versatile components set you apart in a competitive industry.
Optical flats and windows are two such optical components that can be used for various applications. Using these products, you can measure, analyze, and perfect the other optical components.
These fused silica optical flats can either be single-sided or double-sided and can be used in several applications. Some of the ways optical flats you can utilize are in testing the precision and wear in gauge blocks, as flat optical windows to meet interferometry requirements, and testing optical components in other precision optics.
This optical grade glass is precisely polished and lapped to be extremely flat on one of both sides. With a flatness of either λ/10 or λ/20 and made with either high-quality fused silica or BK7, optical flats are used to compare the flatness of other surfaces.
Using optical flats as a point of reference, the surface of other optical components is tested. The process involves placing the polished surface in contact with the surface that’s being tested; light and dark bands will result from the use of monochromatic light.
The resulting bands indicate the flatness of the surface being tested and provide a visual representation of the interference fringes and the spaces and curves between them.
Optical flats range from 25mm to 200mm and have a flatness of about λ/10 or λ/20. The lower cost BK7 offers a relatively lower quality but it’s ideal for applications that are less demanding.
Made with materials of varying grades, optical windows are often produced with BK7 grade A, UV Fused Silica, and Sapphire. Among their various applications, experts in the astronomy, aerospace, medical physics, military, and biomedical industries use optical windows.
These transparent optical products allow light to pass into an instrument. The wide variety of optical windows—square, circular, and rectangular—are comprised of two flat, precisely polished surfaces. The optically transparent and flat surfaces are used to protect electronic sensors and optical systems from environmental elements.
Optical windows are specifically designed with the intent to minimize absorption and reflection while promoting transmission.
High-quality optical windows, which separate two environments while letting light pass through, are ideal for use in various industrial applications. Depending on your requirements, you should select an optical window that’s made with the ideal material, resistance, wavelength range, and transmission.
Work With One Of The Best In The Business
Tower Optical has been manufacturing premium-quality precision optics since 1978. Their unparalleled quality, use of cutting-edge technology, and custom-building capabilities have made a place for them as one of the leading manufacturers.
The company offers a variety of products including beamsplitters, optical filters, beam expanders, micro prisms, laser mirrors, and over 10,000 waveplates. Each of their products isn’t just available in stock, they also specialize in build to print precision optics.
Do you want customized, cost-effective optical solutions delivered promptly? Contact Tower Optical, send in your drawings, and they’ll provide you a quotation to get started.
