Abstract
Macro-size axial gradient index glasses with different refractive index profiles have been produced by fusing together layers of glasses of progressively different indices of refraction. Smooth, step-free gradients are formed by controlled diffusion within and across the layers. The refractive index profiles and wavefront distortions of the lens blanks made from these materials were characterized. Different F/3 singlet lenses were designed and fabricated using these gradient glasses. The performance of these gradient lenses were tested using MTF and interferogram methods. These lenses, having only spherical surfaces, have practically no spherical aberration, and the on-axis performance reached diffraction limit. The methods of preparation of the gradient materials are discussed as well as the advantageous properties of macro gradients in optics.
© 1994 Optical Society of America
PDF ArticleMore Like This
Paul K. Manhart, Robert J. Pagano, and Paul T. Sherman
GTuB3 Gradient-Index Optical Imaging Systems (GIOIS) 1994
Richard Blankenbecler, James J. Hagerty, and Guy E. Rindone
PDP4 International Lens Design (IODC) 1990
Richard A. Flynn and Guy Beadie
IW2A.5 International Optical Design Conference (IODC) 2014