11-874 25.4 mm Dia. Calcium Fluoride Protective Flat Window; t=3 mm Uncoated

The 11-874 is a 25.4 mm diameter Calcium Fluoride (CaF2) Protective Flat Window, uncoated and with a thickness of 3 mm. This window is sourced from Edmund Optics, a leading vendor in the optical industry, and is currently in stock with a valid weblink for online purchase.

As a Window, this component is designed to protect optical systems from environmental factors such as dust, moisture, and other contaminants, while minimally affecting the light path. The Sub Type being Flat Window ensures that the component does not introduce any additional optical power into the system, making it ideal for applications where maintaining the original light path is crucial.

The window is circular in shape, with a diameter of 25.4 mm, and has a Thin Lens shape. This shape is often used in optical systems where a flat surface is required, and the lens thickness is minimal compared to its diameter. The Material ID, caf2 mal-1963, indicates that the window is made of Calcium Fluoride, a material known for its excellent transparency in the ultraviolet, visible, and near-infrared regions of the spectrum.

The window is designed to operate at a wavelength of 587.6 nm, which falls within the visible light spectrum. It is uncoated, meaning it does not have any additional layers applied to its surface to alter its optical properties. This can be beneficial in applications where maintaining the original spectral characteristics of the light is important.