Patents Assigned to Optaglio Limited
  • Patent number: 8562025
    Abstract: An optical security label for security and anti-counterfeit applications comprises a first layer having an optically variable portion (diffractive, holographic or interference film) generating an optically variable effect secured to a support layer by a weak adhesive layer such that the first layer can be scratched off the third support layer to reveal underlying data and the label is affixed to a substrate by a pressure sensitive adhesive. The label or substrate carry the data to be protected such a printed or personalized paper or plastic substrate. In one aspect the scratch off region is patterned and also the data can comprise a pattern of alternate scratch off and permanent areas. In one aspect the label is a thin frangible structure delivered to the substrate with a weakly bound top carrier. In another aspect the optical variable device includes a covert image authenticated by a decoder carried on the top of the removable carrier.
    Type: Grant
    Filed: February 5, 2003
    Date of Patent: October 22, 2013
    Assignee: Optaglio Limited
    Inventor: Kenneth John Drinkwater
  • Patent number: 8289594
    Abstract: The present invention provides for a data protection device comprising an optically variable diffractive scratch-layered structure overlying data to be protected, wherein the device includes at least first and second opaque metallic layers separated by a flexible light-absorbing separation layer.
    Type: Grant
    Filed: May 9, 2007
    Date of Patent: October 16, 2012
    Assignee: Optaglio Limited
    Inventor: John Drinkwater
  • Patent number: 8174743
    Abstract: A holographic effect generating structure (HEGS), either stand alone or integrated with a security diffractive image, generates a holographic optically varying image by a process of diffraction of light, this image under white light illumination generates a smoothly and continuously variable structureless optically variable apparent motion effect which moves along a pre-determined track within pre-determined limits, the device characterized that it generates 3 planes of images under white light illumination—an image plane image located at or near the image plane corresponding to the real plane of the device which defines the predetermined movement track of the apparent motion effect and its bounds, a second virtual image plane situated away from the image plane of the device forming a virtual viewing zone corresponding at which an observer would be positioned to observe the visual effect and a third image plane, which defines a region where all the light rays from the image plane artwork to the viewing zone p
    Type: Grant
    Filed: January 14, 2009
    Date of Patent: May 8, 2012
    Assignee: Optaglio Limited
    Inventor: K. John Drinkwater
  • Publication number: 20100085642
    Abstract: The invention provides in particular for an achromatic diffractive diffuser comprising a surface relief diffractive device arranged such that, under illumination by ambient light, the diffractive effect serves to provide a uniform achromatic diffuser reflection into a defined viewing zone for observation by an observer, and also such that the achromatic diffractive replay of the device has a non-symmetric distribution of diffractive light intensity between positive and negative diffractive order such that the diffractive efficiency in the desired diffractive order is enhanced over that of the undesired order to provide an enhanced brightness achromatic device.
    Type: Application
    Filed: July 8, 2009
    Publication date: April 8, 2010
    Applicant: Optaglio Limited
    Inventor: K. John Drinkwater
  • Publication number: 20090316238
    Abstract: A holographic effect generating structure (HEGS), either stand alone or integrated with a security diffractive image, generates a holographic optically varying image by a process of diffraction of light, this image under white light illumination generates a smoothly and continuously variable structureless optically variable apparent motion effect which moves along a pre-determined track within pre-determined limits, the device characterised that it generates 3 planes of images under white light illumination—an image plane image located at or near the image plane corresponding to the real plane of the device which defines the predetermined movement track of the apparent motion effect and its bounds, a second virtual image plane situated away from the image plane of the device forming a virtual viewing zone corresponding at which an observer would be positioned to observe the visual effect and a third image plane, which defines a region where all the light rays from the image plane artwork to the viewing zone p
    Type: Application
    Filed: January 14, 2009
    Publication date: December 24, 2009
    Applicant: Optaglio Limited
    Inventor: K. John Drinkwater
  • Publication number: 20090303558
    Abstract: The present invention provides for a data protection device comprising an optically variable diffractive scratch-layered structure overlying data to be protected, wherein the device includes at least first and second opaque metallic layers separated by a flexible light-absorbing separation layer.
    Type: Application
    Filed: May 9, 2007
    Publication date: December 10, 2009
    Applicant: OPTAGLIO LIMITED
    Inventor: John Drinkwater
  • Patent number: 7387249
    Abstract: The present invention provides for a system and method for product verification for use with products intended to be introduced into circulation and including machine readable product data, and comprising a product data storage means, at least one portable reading device for said machine readable product data, wherein the machine readable product data is applied to products and is arranged for inspection by the at least one portable reading device remotely from the product data storage means and at at least one point in the product circulation route, and wherein the at least one portable reading device is arranged to verify the authenticity of the machine readable product data and thereby verify the authenticity of the product itself.
    Type: Grant
    Filed: June 5, 2001
    Date of Patent: June 17, 2008
    Assignee: Optaglio Limited
    Inventors: Philip Hudson, John Drinkwater
  • Patent number: 7246824
    Abstract: The invention provides for a label such as a temper evident holographic or diffractive security label that consists of at least two separate microstructures (30, 31), one exhibiting a holographic or diffractive security image, the other a non visible non-diffractive structure which controls differential release of a reflector or semi reflector layer (27) to display a separate visual message upon removal of the label by tamper. The advantage over previous prior art devices is that both the diffractive message and the tamper evident message are encoded within the microstructure without any need for additional coating or print layers in the device.
    Type: Grant
    Filed: June 1, 2001
    Date of Patent: July 24, 2007
    Assignee: Optaglio Limited
    Inventor: Philip Hudson
  • Publication number: 20060001937
    Abstract: A holographic effect generating structure (HEGS), either stand alone or integrated with a security diffractive image, generates a holographic optically varying image by a process of diffraction of light, this image under white light illumination generates a smoothly and continuously variable structureless optically variable apparent motion effect which moves along a pre-determined track within pre-determined limits, the device characterised that it generates 3 planes of images under white light illumination an image plane image located at or near the image plane corresponding to the real plane of the device which defines the predetermined movement track of the apparent motion effect and its bounds, a second virtual image plane situated away from the image plane of the device forming a virtual viewing zone corresponding at which an observer would be positioned to observe the visual effect and a third image plane, which defines a region where all the light rays from the image plane artwork to the viewing zone p
    Type: Application
    Filed: August 10, 2005
    Publication date: January 5, 2006
    Applicant: Optaglio Limited
    Inventor: John Drinkwater
  • Publication number: 20050270604
    Abstract: The invention provides in particular for an achromatic diffractive diffuser comprising a surface relief diffractive device arranged such that, under illumination by ambient light, the diffractive effect serves to provide a uniform achromatic diffuser reflection into a defined viewing zone for observation by an observer, and also such that the achromatic diffractive replay of the device has a non-symmetric distribution of diffractive light intensity between positive and negative diffractive order such that the diffractive efficiency in the desired diffractive order is enhanced over that of the undesired order to provide an enhanced brightness achromatic device.
    Type: Application
    Filed: July 5, 2005
    Publication date: December 8, 2005
    Applicant: Optaglio Limited
    Inventor: K. Drinkwater
  • Patent number: 6876473
    Abstract: An optical device for security and anti-counterfeit applications comprises a diffractive structure comprising a discrete region that in response to white light illumination generates an image by a process of diffraction in close angular proximity to the specular reflection and which is thus substantially non-visible to an observer, and which under coherent illumination generates a laser projection covert image which forms an image in an image plane located away from the physical plane of the device and which is angularly co-located in close proximity to the direction and position of the specular reflection.
    Type: Grant
    Filed: July 2, 2001
    Date of Patent: April 5, 2005
    Assignee: Optaglio Limited
    Inventor: John Drinkwater
  • Patent number: 6765704
    Abstract: An optical device for security and anti-counterfeit applications comprises a holographic diffractive structure (8) that generates a holographic optically variable image by diffraction that consists of at least two separate substantially co-located linear regions that generate in response to white light illumination a visually observable holographic image consisting of at least two defined graphical elements and which generates in response to coherent illumination (1) at least two covert images (5, 6, 7) focussed at a separate image plane a distance away from the real physical plane of the device, each covert image (5, 6, 7) corresponding to the replay from one of the linear regions, each covert image (5, 6, 7) being separated on its image plane from the adjacent covert image (5, 6, 7) by at least its own dimensions.
    Type: Grant
    Filed: April 7, 2003
    Date of Patent: July 20, 2004
    Assignee: Optaglio Limited
    Inventor: John Drinkwater