Near ultraviolet achromatic lens is specifically designed to minimize the spot size for polychromatic illumination in the 345 ? 550nm region. Ideal for use in fluorescence applications, as well as for simple focusing of common UV light sources, such as Mercury Arc Lamps, UV LEDs, and Tripled Nd:YAG lasers. Near ultraviolet achromatic lens features a simple cemented design, and are an excellent alternative to air-spaced doublets and triplets for the UV. Lens features >90% transmission from 360 ? 700nm, and provide >50% transmission at 334nm.