Optical performance results are reported for a molded-glass biaspheric lens. The 6-mm optical diam lens is intended for use in a laser-based optical disk application. The design with fabrication tolerances has an expected on-axis transmitted wave-front performance of 0.06-wave rms optical path difference (OPD) when tested at 0.6328 µm and a numerical aperture of 0.45. Transmitted wave-front aberrations were measured on actual molded lenses using a heterodyne interferometer. Typical performance was 0.05–0.08-wave rms-OPD. Experimental results involving mold rotation indicate that lens performance is primarily limited by a surface figure accuracy of one of the molds.
© 1983 Optical Society of America
Richard O. Maschmeyer, Robert M. Hujar, Larry L. Carpenter, Bryan W. Nicholson, and Edward F. Vozenilek, "Optical performance of a diffraction-limited molded-glass biaspheric lens," Appl. Opt. 22, 2413-2415 (1983)