WHQ4000 40 mm Dia. Quartz Round Window; t=3mm Uncoated

The WHQ4000 is a 40 mm diameter Quartz Round Window with a thickness of 3mm, sourced from Knight Optical. This window is a type of flat window, designed with a base shape of a circle, making it suitable for applications requiring a circular aperture.

The window is made of quartz (SiO2), a material known for its high thermal stability, making it an ideal choice for applications involving high temperatures. The window's geometry, including its 40 mm diameter and 3mm thickness, provides a balance between strength, rigidity, and light transmission.

The window is designed in the shape of a thin lens, which is beneficial for applications where a flat window is required but a lens-like shape can provide additional functionality. The window is uncoated, meaning it does not have any anti-reflective or other coatings. This can be beneficial in applications where coatings may interfere with the optical path or are not required.

The window is designed to work at a wavelength of 633nm, making it suitable for applications involving red light. The window's availability and in-stock status, as indicated by its valid weblink, make it a readily available option for immediate use.