Rodenstock Gmbh

Optische Werke G. Rodenstock

Norbert Awrath

Helmut Altheimer

Gregor Esser

Andrea Welk

Walter Haimerl

Peter Baumbach

Jochen Brosig

Winfried Nikolaus

Herbert Pfeiffer

Martin Zimmermann

Werner Mueller

Edda Wehner

Rainer Dorsch

Martin Wechs

Stephan Haser

Rudolf Barth

Martin Zimmerman

Monika Fuess

Christine Meixner

Kerstin Schmid

Manfred Rohrbach

Walter Haimeri

Guenther Guilino

An individual eyeglass lens in which the vertical distance from the near reference point to the far distance point amounts to max. 18 millimeters, the progressive length is max. 14 millimeters, the main progressive length is max. 10 millimeters and the increase in refractive index, starting from the effect of the eyeglass lens at the far reference point up to a point 2 millimeters below the centering point amounts to less than 10% of the addition. The progressive length corresponds essentially to the vertical distance between the far reference point and a point essentially on the main line at which, starting from the far reference point, the value of the effect of the eyeglass lens corresponding the first time essentially to the near value.

Individual eyeglass lens

A spectacle lens is provided with a region (distance portion) designed for viewing at greater distances and, in particular, 'to infinity', a region (near portion) designed for viewing at short distances and, in particular, 'reading distances', and a progression zone disposed between the distance portion and the near portion, in which the power of the spectacle lens increases from the value in the distance reference point located in the distance portion to the value at the near reference point located in the near portion along a line (principal meridian) curving towards the nose. The invention is marked by specific conditions for the astigmatic deviation and/or the mean &#x201c;as worn&#x201d; power being observed.

Progressive spectacle lens

A progressive power spectacle lens in which a progressive length is less than or equal to 12 mm and width of the distance portion in a horizontally meridian y&equals;&plus;7 mm in dependence on power and addition power is larger than the values given in the following Table:

Progressive spectacle lens having a genuine short progression area

Described is a spectacle lens comprising a region (distance portion) designed for viewing at large distances and in particular &ldquo;to infinity&rdquo;, a region (near portion) designed for viewing at short distances and in particular &ldquo;reading distances&rdquo;, and a progressive zone disposed between the distance portion and the near portion, in which the power of the spectacle lens increases from a value at a distance reference point located in the distance portion to a value at the near reference point located in the near portion along a curve (principal line) veering towards the nose. The invention is distinct in that the astigmatic deviation, i.e. the difference between the prescribed and the actual astigmatism along circles having a center lying 4 mm below the centration point and having a diameter of 10 to 40 mm satisfies the following conditions: two local minima occur which on a &ldquo;right-hand side spectacle lens&rdquo; are located at 95&deg;&plusmn;10&deg; (according to TABO) and at 280&deg;&plusmn;10&deg;, and on a &ldquo;left-hand side spectacle lens&rdquo; at 85&deg;&plusmn;10&deg; and 260&deg;&plusmn;10&deg;; and two local maxima occur which on both a &ldquo;right-hand side spectacle lens&rdquo; and also a &ldquo;left-hand-side spectacle lens&rdquo; are located at 215&deg;&plusmn;10&deg; and 335&deg;&plusmn;10&deg;.

Progressive spectacle lens with low swaying effects

Series of lenses

Growing community of inventors

Munich, Germany

Norbert Awrath