High Index Ball Lenses

TECHSPEC® High Index Ball Lenses provide for a shorter back focal length, simplifying fiber coupling, due to the high index of refraction. Ball lenses are manufactured from a single glass substrate and can either focus or collimate light. The S-LAH79 (Ohara) substrate has an Abbe Number of 28.3, density of 5.23g/cm³, and coefficient of linear expansion of 6.0 microns/°C (-30 to 70°C). TECHSPEC® High Index Ball Lenses are ideal for endoscopy, bar code scanning, ball pre-forms for aspheric lenses, and sensor applications.