Patent application number | Description | Published |
20080212025 | OPTICAL OBSERVATION INSTRUMENT AND A METHOD OF CONTROLLABLY ADJUSTING A REFRACTIVE POWER IN SUCH INSTRUMENT - An optical observation instrument, in particular a spectacle, a reading aid or a telescope, comprises an optical element, in particular a spectacle lens, adapted to be controllably adjustable in its refractive power, a sensor, and a control unit for adjusting the refractive power as a function of signals from the sensor. The sensor is a brightness sensor. In a method of controllably adjusting a refractive power of an optical element in an optical observation instrument an optical parameter is captured by means of a sensor and the refractive power is adjusted as a function of a signal from the sensor. By means of the sensor the brightness of the light impinging on the optical instrument is captured. | 09-04-2008 |
20100118265 | METHOD FOR DETERMINING CORRECTION CHARACTERISTICS FOR A VISION AID - A method for determining correction characteristics for a vision aid for at least one eye of a person wherein: a vision impression of the person is determined in a first usage condition after which a vision impression of the person is determined in a second usage condition after which the wavefront of the person is optimized by determining the correction characteristics for the vision aid until the vision impression of the person in the second usage condition at least approximately matches the vision impression of the person in the first usage condition. | 05-13-2010 |
20110255052 | METHOD FOR OPTIMIZING A SPECTACLE LENS FOR THE WAVEFRONT ABERRATIONS OF AN EYE AND LENS - The current invention is directed to a method for designing an ophthalmic lens element, the method comprising the steps of determining a wavefront aberration of an eye in a reference plane, wherein the wavefront aberration of the eye can be described by a first series of polynomials of ascending order up to a first specific order and corresponding first coefficients; and determining a first vision correction of a second specific order to obtain an adapted ophthalmic lens element; determining at least one specified point over an aperture of the adapted ophthalmic lens element; determining a high-order wavefront aberration in the reference plane for each specified point of the adapted ophthalmic lens element, wherein the high-order wavefront aberration can be described by a third series of polynomials of ascending order above the second specific order up to and including the first specific order and corresponding third coefficients; determining a second vision correction of the second specific order for each of the specified points to obtain an optimized ophthalmic lens element based on the first vision correction up to and including the second specific order and based on combined first and third coefficients above the second specific order and up to and including the first specific order. Further, the current invention is directed to a method for manufacturing an ophthalmic lens element, a computer program product and a system for carrying out the methods. | 10-20-2011 |
20120033179 | METHOD AND APPARATUS FOR DETERMINING THE LOCATION OF THE OCULAR PIVOT POINT - The invention relates to a method for determining the location of the ocular pivot point (ADL) in an eye ( | 02-09-2012 |
20120154750 | ARRANGEMENT WITH A SPECTACLE LENS HAVING A CHANGEABLE EFFECT AND METHOD FOR SETTING THE EFFECT OF A SPECTACLE LENS - The invention relates to an arrangement with a spectacle lens having a changeable optical effect and with an effect-setting apparatus for setting the optical effect of the spectacle lens on the basis of intended-setting data. A memory apparatus stores first intended-setting data for setting a first predetermined optical intended effect, which was established from a first refraction measurement on an eye of a spectacles wearer for whom the spectacle lens is destined, and for storing second intended-setting data for setting a second predetermined optical intended effect, which was established from a second refraction measurement on the eye, and also a supply apparatus for supplying the first intended-setting data or the second intended-setting data to the effect-setting apparatus. | 06-21-2012 |
20130258273 | METHOD FOR DESIGNING A SPECTACLE LENS AND SPECTACLE LENS - The present invention relates to a spectacle lens comprising a first lens element and a second lens element, the first lens element having a front surface and a back surface that comprises a first back surface region and a second back surface region, the at least one second lens element comprising a front surface and a back surface, the second back surface region of the first lens element and the front surface of the second lens element being contiguous, a front surface of the spectacle lens being formed by the front surface of the first lens element and a back surface of the spectacle lens being formed in a base region by the first back surface region of the first lens element and in an achromatic region by the back surface of the at least one second lens element, the first back surface region of the first lens element having a first tangent at at least one first transition point between the base region and the achromatic region in a first cross-sectional plane of the spectacle lens, the back surface of the at least one second element having a second tangent at the at least one first transition point in the cross-sectional plane, wherein the first tangent and the second tangent intersect one another in the first cross-sectional plane. The present invention furthermore relates to a method for designing such a spectacle lens. | 10-03-2013 |
20130271724 | OPTICAL LENS, IN PARTICULAR FOR USE AS A SPECTACLE LENS - An optical lens ( | 10-17-2013 |
20140354948 | METHOD AND APPARATUS FOR DETERMINING THE LOCATION OF THE OCULAR PIVOT POINT - The invention relates to a method for determining the location of the ocular pivot point (ADL) in an eye ( | 12-04-2014 |