The OPSQ-20S05-1-5 is a high-quality optical window from OptoSigma, a leading vendor in the optical industry. This specific model is a 20 x 20 mm square window, designed for use in a variety of optical systems where a flat, transparent surface is required.
The window is made from UVFS, a type of synthetic fused silica, which is known for its excellent optical properties and durability. The UVFS material has a refractive index of approximately 1.46 at a wavelength of 588 nm, making it suitable for use in a wide range of applications.
The window has a thickness of 5 mm, providing a good balance between strength and light transmission. Despite its thickness, the window is still considered a 'thin lens' due to its small dimensions relative to its thickness.
Notably, this window is uncoated, meaning it does not have any anti-reflective or other coatings applied to its surfaces. This can be advantageous in certain applications where a high level of transparency is required, or where the introduction of a coating could potentially introduce unwanted distortions or reflections.
For more information, including pricing and availability, please refer to the vendor's website using the provided weblink.