226-1191 20.0 mm Dia. UVFS Precision Thin Round Window; t=1.0 mm Uncoated

The 226-1191 is a precision thin round window, boasting a diameter of 20.0 mm and a thickness of 1.0 mm. This flat window, manufactured by EKSMA Optics, is designed in a circular base shape, making it a versatile option for various optical applications.

The window is made from UVFS material, specifically UVFS Mal- 1965, which is known for its durability and optical clarity. This material is particularly suitable for use in the 633 nm wavelength range, making it an ideal choice for applications that require precise optical performance at this wavelength.

The window features a thin lens shape, which is beneficial for applications where minimal thickness and weight are critical. Despite its thin profile, the window maintains excellent optical quality, making it a reliable choice for various optical systems.

Notably, this window is uncoated, meaning it does not have any additional layers applied to its surface. This can be advantageous in certain applications where a bare substrate is preferred, or where the risk of coating damage is high. However, it's important to note that uncoated windows may have higher reflectivity and lower transmission compared to coated alternatives.

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