EYL-G Series Aspherical Glass Lenses Panasonic EYL-G Series Aspherical Glass Lenses are press-molded lenses with a high numerical aperture. These glass lenses provide high performance with lightweight by utilizing characteristics of an aspherical design. The EYL-G aspherical lenses exhibit short focal lengths for compact size and offer wide temperature and humidity ranges for increased reliability and stability. These lenses have undergone high-quality processing, measurement techniques, and precision manufacturing by Panasonic for less variation in optical properties. Typical applications include coupling lenses and collimator lenses for optical communication systems.