112-1203E 25.4 mm Dia. x -30 mm FL; Uncoated; Plano-Concave Lens

The 112-1203E is a plano-concave lens with a diameter of 25.4 mm and a focal length of -30 mm, making it a negatively powered lens. This lens is sourced from EKSMA Optics, a reputable vendor in the optical components industry. The lens is uncoated, which means it does not have any additional layers to protect it from environmental factors or to enhance its optical properties.

The geometry of the lens includes a thickness of 9 mm at the edge and 1.6 mm at the center. The inner and outer radii are both 0, indicating a plano surface on one side and a concave surface on the other. The lens is made of UVFS Mal-1965, a material with a refractive index suitable for use in the ultraviolet region of the spectrum, specifically at a wavelength of 355 nm.

This lens is a spherical lens, meaning it has a curved surface that is a portion of a sphere. The curvature of the concave surface is defined by a radius of -14.3 mm. The effective focal length (EFL) of -30 mm indicates that this lens will cause light to diverge, making it suitable for use in applications where light needs to be spread out over a larger area.

For more information about this lens, including its availability and potential applications, please refer to the vendor's website.