The cemented lens is also called an achromatic lens, which is formed by cementing two single lens elements. The performance of multi-color (white light) imaging is much higher than that of a single lens. The achromatic lens consists of two lenses of different materials glued together to correct the dispersion of the glass. Eliminating the problem of chromatic aberration, achromatic lenses have been widely used in multi-color lighting and imaging, improving cost-effectiveness. Welcome to visit our official website : http://www.optics-glass.com