Patents Assigned to Optische Werke G. Rodenstock
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Publication number: 20040092743Abstract: The present invention relates to specific photochromic heterocyclically annellated indenochromene derivatives and the use thereof in plastics of all types, particularly for ophthalmic applications.Type: ApplicationFiled: November 25, 2003Publication date: May 13, 2004Applicant: Optische Werke G. RodenstockInventors: Claudia Mann, Manfred Melzig, Udo Weigand
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Patent number: 6686468Abstract: The present invention relates to specific photochromic h-annellated benzo[f]chromene derivatives and their use in synthetic resins of all types, especially for ophthalmic applications. In particular, the present invention relates to photochromic compounds derived from benzo[f]chromenes, which in the open form have especially long-wave absorption maxima making it possible to obtain violet to blue tints when used in phototropic glasses.Type: GrantFiled: May 10, 2002Date of Patent: February 3, 2004Assignee: Optische Werke G. RodenstockInventors: Claudia Mann, Manfred Melzig, Udo Weigand
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Patent number: 6685316Abstract: What is described here is a method of manufacturing progressive ophthalmic lenses whereof each is produced in correspondence with the individual data of a specific spectacle wearer, and whereof each presents a first surface having a defined surface power value in the surface apex, and presents a non-spherical second surface (prescription surface) whose surface power varies along a line (referred to as principal line in the following) that follows at least approximately the main line of sight when the view is lowered, such that the ophthalmic lens produces a first effect in a first reference point, which is suitable for viewing in a first distance envisaged for the respective application, and that this effect varies along the principal line by a predetermined value (addition Add) to a second value present in a second reference point, which is suitable for viewing in a second distance envisaged for the respective application, and whose second surface possibly presents a surface astigmatism optionally for paType: GrantFiled: July 16, 2002Date of Patent: February 3, 2004Assignee: Optische Werke G. RodenstockInventors: Peter Baumbach, Gregor Esser, Werner Mueller, Jochen Brosig, Walter Haimerl, Helmut Altheimer, Herbert Pfeiffer
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Publication number: 20040017543Abstract: 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 “as worn” power being observed.Type: ApplicationFiled: October 24, 2002Publication date: January 29, 2004Applicant: OPTISCHE WERKE G. RODENSTOCKInventors: Andrea Welk, Peter Baumbach, Walter Haimerl, Herbert Pfeiffer, Gregor Esser, Helmut Altheimer, Rainer Dorsch, Martin Zimmerman, Norbert Awrath, Jochen Brosig, Werner Mueller, Martin Wechs, Stephan Haser, Winfried Nikolaus
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Patent number: 6669337Abstract: Described is a spectacle lens comprising 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 distinct in that the astigmatic deviation, i.e.Type: GrantFiled: October 25, 2002Date of Patent: December 30, 2003Assignee: Optische Werke G. RodenstockInventors: Andrea Welk, Peter Baumbach, Walter Haimerl, Herbert Pfeiffer, Norbert Awrath, Gregor Esser, Helmut Altheimer, Rainer Dorsch, Martin Zimmermann, Jochen Brosig, Werner Mueller, Martin Wechs, Stephan Haser, Winfried Nikolaus
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Patent number: 6655802Abstract: What is described here is a method of manufacturing spectacles comprising individual progressive ophthalmic lenses, including the following steps: selection of a spectacle frame, detection of the shape of the lens rings with a precision better than ±0.Type: GrantFiled: December 12, 2002Date of Patent: December 2, 2003Assignee: Optische Werke G. RodenstockInventors: Martin Zimmermann, Peter Baumbach, Walter Haimerl, Herbert Pfeiffer, Gregor Esser, Jochen Brosig, Werner Müller, Martin Wechs, Helmut Altheimer, Rainer Dorsch, Winfried Nikolaus
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Publication number: 20030156251Abstract: Described is a spectacle lens comprising 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 distinct in that the astigmatic deviation, i.e.Type: ApplicationFiled: October 25, 2002Publication date: August 21, 2003Applicant: OPTISCHE WERKE G. RODENSTOCKInventors: Andrea Welk, Peter Baumbach, Walter Haimerl, Herbert Pfeiffer, Norbert Awrath, Gregor Esser, Helmut Altheimer, Rainer Dorsch, Martin Zimmermann, Jochen Brosig, Werner Mueller, Martin Wechs, Stephan Haser, Winfried Nikolaus
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Publication number: 20030117578Abstract: A method for computing a spectacle lens, which includes 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, by an amount designated as addition power.Type: ApplicationFiled: October 25, 2002Publication date: June 26, 2003Applicant: OPTISCHE WERKE G. RODENSTOCKInventors: Walter Haimerl, Herbert Pfeiffer, Gregor Esser, Helmut Altheimer
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Publication number: 20030098950Abstract: Described is a spectacle lens comprising 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 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 fulfil specific conditions.Type: ApplicationFiled: October 25, 2002Publication date: May 29, 2003Applicant: OPTISCHE WERKE G. RODENSTOCKInventors: Andrea Welk, Peter Baumbach, Walter Haimerl, Herbert Pfeiffer, Gregor Esser, Helmut Altheimer, Rainer Dorsch
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Publication number: 20020052499Abstract: The present invention relates to photochromic 2H-naphtho[1,2-b]pyrans as well as their use in synthetic resins of all types, especially for ophthalmic purposes. In particular, the present invention relates to photochromic naphthopyran compounds, for which a further ring system is bonded to the f side of the naphthopyran.Type: ApplicationFiled: December 13, 2001Publication date: May 2, 2002Applicant: Optische Werke G. RodenstockInventors: Manfred Melzig, Claudia Mann, Udo Weigand
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Patent number: 6373615Abstract: A neutral-colored gray photochromic plastic article which remains almost completely color-neutral or gray both during darkening as well as during bleaching. The plastic article according to the invention may be employed as a neutral-color gray photochromic ophthalmic lens.Type: GrantFiled: July 11, 2000Date of Patent: April 16, 2002Assignee: Optische Werke G. RodenstockInventors: Claudia Mann, Manfred Melzig, Udo Weigand
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Patent number: 6342459Abstract: The present invention relates to photochromic 2H-naphtho[1,2-b]pyrans as well as their use in synthetic resins of all types, especially for ophthalmic purposes. In particular, the present invention relates to photochromic naphthopyran compounds, for which a further ring system is bonded to the f side of the naphthopyran. The inventive photochromic dyes generally have the general formula (I) wherein n, R1, R2, R3, X, B and B′ are defined as in claim 1. The inventive compounds are distinguished by good darkening and decolorizing properties and a very good service life.Type: GrantFiled: May 18, 2000Date of Patent: January 29, 2002Assignee: Optische Werke G. RodenstockInventors: Manfred Melzig, Claudia Mann, Udo Weigand
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Patent number: 6331625Abstract: Photochromic spirofluorenopyran compounds corresponding to the general formula (I): in which B, B′, R1 to R4 and G have the meanings defined herein. The compounds of the invention are useful in the production of photochromic articles, particularly articles made of synthetic resin materials, and exhibit rapid darkening and brightening rates, as well as long useful service lives. By appropriate selection of substituents, it is possible to adjust the properties of the compounds such as absorption maxima (color), brightening rate, etc.Type: GrantFiled: April 25, 2000Date of Patent: December 18, 2001Assignee: Optische Werke G. RodenstockInventors: Claudia Mann, Udo Weigand, Manfred Melzig
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Patent number: 6315928Abstract: The present invention relates to specific photochromic 3H-naphtho[2,1-b]pyran derivatives and to their use in plastics of all types, especially for ophthalmic purposes. In particular, the present invention relates to spiro compounds derived from naphthopyrans and having a fluorene structure, referred to as spirofluorenopyrans, in which an annelated ring system is joined by a spiro bond to the central carbon atom of the fluorene structure.Type: GrantFiled: March 2, 2001Date of Patent: November 13, 2001Assignee: Optische Werke G. RodenstockInventors: Claudia Mann, Manfred Melzig, Udo Weigand
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Patent number: 6306316Abstract: The invention relates to photochromic plastic objects comprising a plastic material and at least two photochromic pyran derivatives, which are introduced therein and, in each case, have an aryl group, which is linked to the carbon atom adjacent to the pyran oxygen atom and is substituted with at least one group containing at least one nitrogen atom, the longest wavelength absorption maximum of the light-stimulated form of the one pyran derivative lying above 550 nm and the longest wavelength absorption of the light-stimulated form of the other pyran derivative lying below 550 nm and the pyran derivative, absorbing at the shorter wavelength, being selected from 3[H]-naphtho[2,1-b]pyrans and the pyran derivative, absorbing at the longer wavelength, being selected from indeno[2,1-f]naphtho[1,2-b]pyrans or spiro-9-fluoreno[1,2-b]pyrans.Type: GrantFiled: June 2, 2000Date of Patent: October 23, 2001Assignee: Optische Werke G. RodenstockInventors: Claudia Mann, Manfred Melzig, Udo Weigand
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Patent number: 6231182Abstract: A monofocal ophthalmic lens having a front and a rear surface, each of which is aspherical, of which at least one surface has identical radii of principle curvature in the apex. The average surface refracting power of at least one of the front and rear surfaces is defined by the formula: Bf=(n−1)/2*(1/R1+1/R2) wherein n: is the refractive index of the lens medium, R1: is the radius of principle curvature 2 in a point of at least one of the front and rear surfaces in a first principle plane, and R2: is the radius of principle curvature 2 in the point of the at least one in the front and rear surfaces in a second principle plane, and wherein the average surface refracting power of points on the at least one of the front and rear surfaces is the function of the distance h at constant azimuthal angle of &OHgr; of each point from the apex, and the function includes an extreme value and/or a value 0.Type: GrantFiled: December 22, 1999Date of Patent: May 15, 2001Assignee: Optische Werke G. RodenstockInventors: Gunther Guilino, Herbert Pfeiffer, Walter Haimerl, Helmut Altheimer, Gregor Esser
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Patent number: 6225466Abstract: Photochromic spirofluorenopyran compounds corresponding to the general formula (I): in which B, B′, R1 to R4 and G have the meanings defined herein. The compounds of the invention are useful in the production of photochromic articles, particularly articles made of synthetic resin materials, and exhibit rapid darkening and brightening rates, as well as long useful service lives. By appropriate selection of substituents, it is possible to adjust the properties of the compounds such as absorption maxima (color), brightening rate, etc.Type: GrantFiled: May 28, 1999Date of Patent: May 1, 2001Assignee: Optische Werke G. RodenstockInventors: Claudia Mann, Udo Weigand, Manfred Melzig
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Patent number: 6213603Abstract: A progressive ophthalmic lens including at least one distant vision zone in which the power is suitable for distant viewing, at least one near vision zone in which the power is suitable for near viewing, and at least one progression zone in which the power varies continuously from the power of the distant vision zone to the power of the near vision zone along a principal line, at least one surface of the ophthalmic lens contributing to the power variation. A surface astigmatism of the at least one of surface of the ophthalmic lens contributing to the power variation along at least one horizontal intersection, represented by an intersection of the ophthalmic lens and a horizontal plane where y=const, has a local maximum value located at a distance of not more than 4 mm from the principal line, and at least one local minimum value which does not lie on the principal line and is located at a greater distance from the principal line than the local maximum value.Type: GrantFiled: August 9, 1999Date of Patent: April 10, 2001Assignee: Optische Werke G. RodenstockInventors: Helmut Altheimer, Gregor Esser, Herbert Pfeiffer, Rudolf Barth, Monika Fuess, Walter Haimerl
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Patent number: D446237Type: GrantFiled: November 30, 2000Date of Patent: August 7, 2001Assignee: Optische Werke G. RodenstockInventor: Peter Koevari
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Patent number: D451119Type: GrantFiled: November 30, 2000Date of Patent: November 27, 2001Assignee: Optische Werke G. RodenstockInventor: Peter Koevari