BICC-25.4/300.0C 25.4 mm Dia. x -291 mm FL; Uncoated; Double-Concave Lens

This is a double-concave lens, also known as a biconcave lens, sourced from the renowned optical components vendor, Laser Components. The lens has a base shape of a circle and is designed for use with a wavelength of 633 nanometers.

The lens has a diameter of 25.4 millimeters and a thickness at the edge of 3.5 millimeters. The center thickness is slightly less at 3 millimeters. The effective focal length (EFL) of this lens is -291 millimeters, indicating that it is a diverging lens, causing incoming light rays to spread out after passing through it.

The lens is made from the material n-BK7 Schott, a high-quality borosilicate glass known for its excellent optical properties. This material is often used in high-precision optical systems due to its low dispersion and high transmission in the visible spectrum.

The lens does not come with any coating, as indicated in the item data. Coatings are often applied to lenses to enhance their performance in specific applications, such as increasing their durability, reducing reflections, or improving their transmission characteristics. However, this lens is designed to be used in its uncoated form.

For more detailed information about this lens, including its geometry and material properties, please refer to the datasheet provided by Laser Components. The link to this datasheet is valid and indicates that the lens is in stock, ready for immediate use in your optical system.