Optische Werke G. Rodenstock

Werner Koppen

Rudolf Barth

Gunther Guilino

A spectacle lens with a high positive refracting power, whose front surface has an aspheric, rotationally symmetric effective part. The effective part is configured in accordance with the following equation: ##EQU1## where z is the sagitta, h is the distance from the optical axis, C is determined by the desired refracting power of the front surface at the vertex, and K and I.sub.i are aspheric coefficients. The aspheric coefficients K and I.sub.i are determined so that either the visual acuity V is a maximum or .vertline..DELTA.R.vertline.+.vertline..DELTA.S.vertline. is a minimum. The lens produces a pattern of aberration which allows complete utilization of the visual field for dynamic vision.

Growing community of inventors

Grobenzell, Germany

Werner Koppen