CARL ZEISS VISION AUSTRALIA HOLDINGS LIMITED Patent applications |
Patent application number | Title | Published |
20120268828 | Liquid Casting Compositions, Production Processes and Photochromic Optical Elements - The present invention provides a liquid casting composition for producing photochromic optical elements, the composition including: (i) an acrylate or methacrylate monomer; (ii) a photochromic compound; (iii) a terpinolene-based radical chain transfer agent; and (iv) a thermal free radical initiator. Also provided are methods for producing photochromic optical elements using the liquid casting composition and photochromic optical elements produced thereby. The photochromic optical elements include, for example, ophthalmic lenses. | 10-25-2012 |
20120157651 | THIOURETHANE-BASED LENS ELEMENTS AND PROCESSES FOR THEIR PRODUCTION - An optical lens element resin composition including:
| 06-21-2012 |
20100041787 | ULTRAVIOLET LIGHT ABSORBING OPTICAL ELEMENTS AND COMPOSITIONS AND METHODS FOR MANUFACTURE - The present invention relates to a UV absorbing optical element comprising a polymer optical element substrate, and a UV light absorbing amount of a tris-aryltriazine-based UV absorber incorporated in said substrate. The present invention also provides a method for forming a UV absorbing optical element. | 02-18-2010 |
20100026955 | OPHTHALMIC LENS DISPENSING METHOD AND SYSTEM | 02-04-2010 |
20090290125 | ARRAY OF PROGRESSIVE OPHTHALMIC LENS ELEMENTS - An array of progressive ophthalmic lens elements is disclosed. The progressive ophthalmic elements contained in the array having substantially the same addition power and substantially the same optical prescription for distance vision. Each of the progressive ophthalmic lens elements has a progressive lens design characterised by a set of parameters defining a distance zone providing a refracting power for distance vision, a near zone providing a refracting power for near vision and a corridor having a refracting power varying from that of the distance zone to that of the near zone. The progressive ophthalmic lens elements provide, for a range of values or categories of at least two lifestyle and/or biometric parameters of lens wearers, different progressive lens designs in which at least two of the lens design parameters each have a respective value or characteristic attributable to, or associated with, a particular value or category of a respective one of the lifestyle and/or biometric parameters. | 11-26-2009 |
20090257026 | Ophthalmic Lens Element for Myopia Correction - An ophthalmic lens element ( | 10-15-2009 |
20090189303 | METHODS FOR FORMING COATED HIGH INDEX OPTICAL ELEMENTS - Disclosed is a method of forming a coated optical element. The method includes providing a mould assembly having opposed mould sections and applying a UV-curable hard coat monomer composition to the casting face of at least one of the mould sections to form a hard coat monomer layer. The hard coat layer is irradiated with UV radiation under conditions to form a partially cured hard coat layer. The assembled mould is filled with a high index optical element precursor material the optical element precursor material and the partially cured hard coat layer are cured to form a high index optical element having a hard coat. | 07-30-2009 |
20090026638 | METHOD OF FORMING A COATED OPTICAL ELEMENT - A method of forming a coated optical element is disclosed herein. The method uses a mould having first and second mould sections that will form front and back surfaces of the optical element, one of the mould sections having a casting face. The method includes the steps of: applying an abrasion resistant coating layer to the casting face of a mould section, the casting face being capable of imparting a desired optical configuration on a surface of the optical element; treating the abrasion resistant coating layer to prevent damage to the layer during subsequent steps; applying a second coating layer to the abrasion resistant coating layer to substantially cover the abrasion resistant coating layer; treating the second coating layer to provide at least weak adhesion of the second coating layer to the abrasion resistant coating layer and to prevent damage to the second layer during subsequent steps; filling the mould with an organic liquid material; and hardening the organic liquid material so as to form the optical element adhered to the second coating layer. | 01-29-2009 |
20080316427 | Ophthalmic Lens Simulation System and Method - A method of simulating an optical effect, and/or characteristic of a selected ophthalmic lens design for a wearer is disclosed. In an embodiment, the method includes retrieving simulation data for the selected ophthalmic lens design and processing the simulation data to generate output image data for an output image simulating the optical effect and/or characteristic of the selected ophthalmic lens design. The output image is displayed, using a head-mounted display worn by the wearer, for viewing by the wearer. | 12-25-2008 |
20080311404 | Coatings for Optical Elements - The invention provides an abrasion resistant coating composition for an optical element. The composition includes a polymerisable epoxy monomer having an average of at least two epoxy groups in the monomer molecule. The composition is capable of forming an abrasion resistant coating on an optical element after ionic polymerisation. The coating composition may also include an ionically polymerisable alkene monomer having an average of at least two polymerisable double bonds in the molecule. | 12-18-2008 |
20080311287 | Primer Layer Coating Compositions - The present invention provides a coated optical element including an optical substrate and a primer layer that is formed by cationic polymerisation of a coating composition containing an effective amount of an epoxy monomer and a vinyl ether monomer. The optical element may be an ophthalmic lens. | 12-18-2008 |
20080309880 | Vision Testing System and Method - A method for testing a person's vision is disclosed. The method includes providing, for display to the person, one or more sequences of test images, each test image including one or more test symbols. For each test image, a target symbol is identified to the person. The person then views each test image in the sequence and activates a control in response to recognising a test symbol that replicates the shape of the target symbol. At the completion of the sequence, a parameter value associated with the activations is processed and correlated with a vision metric. A system for testing a person's vision is also disclosed. | 12-18-2008 |
20080282183 | Ophthalmic Lens Design and/or Dispensing - A method of designing and/or selecting a progressive addition lens design for a wearer is disclosed. In an embodiment, the method includes displaying a graphical representation of an initial progressive addition lens design including design parameters having design values. A user interface is provided including, for each of one or more of the design parameters, a control that is adjustable over a range of levels, each level in the range being associated with a corresponding value of the respective design parameter. A control is adjusted to select a level and the selection is processed so as to substantially simultaneously update the displayed graphical representation in accordance with the selected level to provide a modified progressive lens design. A system for designing and/or selecting a progressive addition lens design for a wearer is also disclosed. | 11-13-2008 |