Rodenstock Gmbh

Optische Werke G. Rodenstock

Rainer Dorsch

Walter Haimerl

Helmut Altheimer

Gregor Esser

Herbert Pfeiffer

Peter Baumbach

Andrea Welk

Jochen Brosig

Winfried Nikolaus

Martin Wechs

Werner Mueller

Martin Zimmermann

Martin Zimmerman

Norbert Awrath

Stephan Haser

Werner M&uuml;ller

Georg Esser

A spectacle lens having in a first see-through region a power suitable for distant viewing in a wearing position, and in a second see-through region a power suitable for medium-distance viewing, i.e. for distances of about 1 meter and more, in a wearing position, and in which the power continuously increases from the first see-through region along a plane or winding principal line to the second see-through region. The spectacle lens has the following features: the power increases not only from the first see-through region to the second see-through region, but also continuously to beyond the second see-through region to a lower edge of the spectacle lens; and a region of clear vision, i.e. a region in which a residual astigmatism of a system spectacle-lens/eye does not exceed 0.5 dpt, narrows below the first see-through region towards the lower edge of the spectacle lens to have a funnel-shaped configuration, i.e. without any constriction.

Progressive spectacle lens for seeing objects at a large or average distance

A method for optimizing an atoroidal surface of an optical lens, in particular a spectacle lens, having at least one plane of symmetry is characterized by a combination of the following features: dividing the atoroidal surface having at least one plane of symmetry into at least two regions separated by the at least one plane of symmetry; representing one of the separate regions (represented region) of this surface by a set of coefficients of B spline functions; computing sagittal heights of the represented region by B spline interpolation; computing sagittal heights in at least one other region by mirroring coefficients or coordinates at the at least one plane of symmetry; and optimizing the atoroidal surface only by varying the set of B spline coefficients of the represented region.

B-spline optimization of optical glasses especially spectacle glasses with planes of symmetry

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

The invention relates to an optical lens or glass with an identification and/or marking on the front and/or rear surface. The inventive lens or glass with an identification and/or marking on the front and/or back surface is characterized by an identification and/or marking which consists of a plurality of elements, each element causing a spectral dispersion of the incident light and reflected light.

Optical lens or glass having a label and/or marking on the front surface and/or rear surface

A method is described for determining the optical and individual progression length of a continuous vision lens on the basis of the measured cornea/bridge distance of a spectacle frame which is matched in advance. The invention is distinguished by the following steps:

Method for the production of a spectacle glass taking into account the optimum individual length of progression

A spectacle lens comprises a region (distance portion) designed for viewing at large distances and in particular 'to infinity'; a region (near portion) designed for viewing at short distances and in particular 'reading distances'; 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 distinguished by a combination of the following features: a change of magnification with a direction of sight is small; the magnification increases radially, starting from the distance reference point; the difference between the magnifications at the distance and near reference points is small.

Progressive spectacle lens with low magnifying differences

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 a near reference point located in the near portion along a curve (principal line) veering towards the nose. The invention is rendered distinct by a feature, amongst others, according to which trajectories of motion fulfill specific conditions.

Progressive spectacle lens producing only slight dynamic distortion

A spectacle lens comprises a region (distance portion) designed for viewing at greater distances, in particular, to infinity; a region (near portion) designed for viewing at short distances and, in particular, &ldquo;reading distances&rdquo;; and a progression zone located between the distance portion and the near portion, in which the power of the spectacle lens increases from a value at 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. It is one of the characteristics of the invention that for minimizing the change of imaging properties with horizontal movements of the gaze along a curve described by the points of penetration of the principal rays through the front surface, these principal rays passing through a point having the coordinates (x&minus;dx, y, s) at the beginning of the movement and a point having the coordinates (x &plus;dx, y, s) at the end of the movement, at s&equals;&minus;40 mm and dx&equals;10 mm particular conditions apply.

Progressive spectacle lens exhibiting only slight dynamic change of the properties of use during a horizontal viewing movements

A spectacle lens comprises 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 a power of the spectacle lens increases from a value at a distance reference point located in the distance portion to a value at a near reference point located in the near portion along a curve (principal line) veering towards a nose. The invention is distinct in that, for minimizing a change of binocular imaging properties with horizontal movements of glance, a lift (difference between a maximum and a minimum value occurring during a movement) of binocular imaging properties when a moving object is being followed, is smaller than a physiologically pre-determined limiting amount.

Progressive spectacle lens having only a small change of binocular properties during a movement of glance

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;.

Growing community of inventors

Munich, Germany

Rainer Dorsch