Patents by Inventor John Clamp
John Clamp has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Patent number: 10459128Abstract: A liquid crystal device (100) for focusing visible light, the liquid crystal device (100) comprising a plurality of curved substrates (101,102) arranged to form one or more curved cavities (104) therebetween, each substrate being configured to provide a focal power, wherein the one or more curved cavities contain liquid crystal and form one or more liquid crystal elements. Each of the one or more liquid crystal elements are configured to provide a focal power, the focal power of each of the liquid crystal elements being dependent on the curvature of the respective cavity and a voltage applied across the liquid crystal contained within the respective cavity. The substrates (101,102) in combination with the one or more liquid crystal elements are arranged to provide a first focal power in a substantial absence of an applied voltage and a second focal power in response to an applied voltage.Type: GrantFiled: July 30, 2014Date of Patent: October 29, 2019Assignee: The University of ManchesterInventors: Harry Edward Milton, Sarabjot Kaur, John Clifford Jones, Helen Frances Gleeson, Philip Bruce Morgan, John Clamp
-
Patent number: 9668558Abstract: Disclosed is a stack of individually separable packages for a plurality of contact lenses, each individual lens being packaged between a first surface and a second surface, wherein the first surface is provided by a first one of the individually separable packages and the second surface is provided by a second one of the individually separable packages.Type: GrantFiled: September 28, 2015Date of Patent: June 6, 2017Assignee: CONTACT LENS PRECISION LABORATORIES LTD.Inventors: John Clamp, Richard Newell
-
Publication number: 20160170097Abstract: A liquid crystal device (100) for focusing visible light, the liquid crystal device (100) comprising a plurality of curved substrates (101,102) arranged to form one or more curved cavities (104) therebetween, each substrate being configured to provide a focal power, wherein the one or more curved cavities contain liquid crystal and form one or more liquid crystal elements. Each of the one or more liquid crystal elements are configured to provide a focal power, the focal power of each of the liquid crystal elements being dependent on the curvature of the respective cavity and a voltage applied across the liquid crystal contained within the respective cavity. The substrates (101,102) in combination with the one or more liquid crystal elements are arranged to provide a first focal power in a substantial absence of an applied voltage and a second focal power in response to an applied voltage.Type: ApplicationFiled: July 30, 2014Publication date: June 16, 2016Applicant: The University of ManchesterInventors: Harry Edward Milton, Sarabjot Kaur, John Clifford Jones, Helen Frances Gleeson, Philip Bruce Morgan, John Clamp
-
Patent number: 9247877Abstract: Disclosed is a device adapted to measure intraocular pressure comprising: a corneal contact lens having a pressure sensor mounted in a recess or cavity in the contact lens, and wherein the contact lens has a back surface which is formed so as to protrude in a desired portion beyond the profile of the adjacent part of the lens and thus to press against the cornea, which protruding portion experiences a reactive deformation which is detected directly or indirectly by the pressure sensor.Type: GrantFiled: October 20, 2011Date of Patent: February 2, 2016Assignees: UNIVERSITY OF DUNDEE, CONTACT LENS PRECISION LABORATORIES LTDInventors: Ahmed Elsheikh, John Clamp
-
Publication number: 20160015139Abstract: Disclosed is a stack of individually separable packages for a plurality of contact lenses, each individual lens being packaged between a first surface and a second surface, wherein the first surface is provided by a first one of the individually separable packages and the second surface is provided by a second one of the individually separable packages.Type: ApplicationFiled: September 28, 2015Publication date: January 21, 2016Inventors: John CLAMP, Richard NEWELL
-
Patent number: 9173463Abstract: Disclosed is a stack of individually separable packages for a plurality of contact lenses, each individual lens being packaged between a first surface and a second surface, wherein the first surface is provided by a first one of the individually separable packages and the second surface is provided by a second one of the individually separable packages.Type: GrantFiled: November 25, 2013Date of Patent: November 3, 2015Assignee: CONTACT LENS PRECISION LABORATORIES LTD.Inventors: John Clamp, Richard Newell
-
Publication number: 20150290034Abstract: A prosthesis capable of being worn on the eye of a wearer having a convex surface and a concave surface. The prosthesis has an aperture widening zone for widening the natural palpebral fissure of the wearer's eye. The aperture widening zone may include a surface feature having an outer slope, an inner slope, and a maximum added thickness delta located between the outer slope and the inner slope. At least a portion of the surface feature may be designed in using one or more spline curve functions. Methods for designing and manufacturing prostheses having a surface feature at least partially designed using one or more spline curve functions are also provided.Type: ApplicationFiled: April 7, 2015Publication date: October 15, 2015Inventors: Ronald D. BLUM, John CLAMP
-
Publication number: 20150129437Abstract: Disclosed is a stack of individually separable packages for a plurality of contact lenses, each individual lens being packaged between a first surface and a second surface, wherein the first surface is provided by a first one of the individually separable packages and the second surface is provided by a second one of the individually separable packages.Type: ApplicationFiled: November 25, 2013Publication date: May 14, 2015Applicant: Contact Lens Precision Laboratories Ltd.Inventors: John CLAMP, Richard NEWELL
-
Publication number: 20130184554Abstract: Disclosed is a device adapted to measure intraocular pressure comprising: a corneal contact lens having a pressure sensor mounted in a recess or cavity in the contact lens, and wherein the contact lens has a back surface which is formed so as to protrude in a desired portion beyond the profile of the adjacent part of the lens and thus to press against the cornea, which protruding portion experiences a reactive deformation which is detected directly or indirectly by the pressure sensor.Type: ApplicationFiled: October 20, 2011Publication date: July 18, 2013Inventors: Ahmed Elsheikh, John Clamp
-
Patent number: 8317323Abstract: The invention relates to a method of designing a soft contact lens, said lens having a central optic zone and with a peripheral zone around the central optic zone; the method comprising the steps of: (a) defining a back surface of the lens which is a satisfactory fit to the surface of a subject's cornea; (b) defining a front surface of the lens over at least the central optic zone, which surface is selected so as to ameliorate the subject's vision defects; (c) checking that the lens meets a desired range of thickness values at one or more selected parts of the lens and, if not, recalculating the front surface over at least the central optic zone so as to meet said desired thickness value range, wherein the lens is to be made of a substance having a Young's modulus in the range 0.08 to 0.40 MPa, and wherein the junction thickness of the lens is in the range 0.15-0.40 mm.Type: GrantFiled: September 10, 2010Date of Patent: November 27, 2012Assignee: Contact Lens Precision Laboratories Ltd.Inventors: John Clamp, Richard Gordon Newell
-
Publication number: 20120062835Abstract: The invention relates to a method of designing a soft contact lens, said lens having a central optic zone and with a peripheral zone around the central optic zone; the method comprising the steps of: (a) defining a back surface of the lens which is a satisfactory fit to the surface of a subject's cornea; (b) defining a front surface of the lens over at least the central optic zone, which surface is selected so as to ameliorate the subject's vision defects; (c) checking that the lens meets a desired range of thickness values at one or more selected parts of the lens and, if not, recalculating the front surface over at least the central optic zone so as to meet said desired thickness value range, wherein the lens is to be made of a substance having a Young's modulus in the range 0.08 to 0.40 MPa, and wherein the junction thickness of the lens is in the range 0.15-0.40 mm.Type: ApplicationFiled: September 10, 2010Publication date: March 15, 2012Applicant: CONTACT LENS PRECISION LABORATORIES LIMITEDInventors: John Clamp, Richard Gordon Newell
-
Publication number: 20110299028Abstract: Disclosed is a method of designing a soft contact lens to correct a visual defect in the eye of a human subject caused by abnormal corneal topography, the method comprising the steps of: (a) defining the posterior topography of the lens over at least a central optic zone to conform to that of the subject's cornea as previously determined; (b) defining the posterior topography of the lens over an outer portion to provide a flatter curve than that of the cornea, whilst retaining the previously defined topography over the central optic zone of the lens; (c) using empirical or theoretical data to predict or model the path of light rays passing from the cornea into the contact lens, and thereby adapting the topography of the anterior surface of the contact lens, over at least the central optic zone, to cause the light rays passing through the lens to conform to a desired wavefront (typically planar); and (d) defining the anterior surface of the contact lens over the outer portion to join the anterior optic zone toType: ApplicationFiled: October 24, 2008Publication date: December 8, 2011Inventor: John Clamp
-
Patent number: 7717563Abstract: Disclosed is a method of designing a soft contact lens, the method comprising the steps of: (a) measuring or defining a wavefront generated by passage of light through a selected eye and using the wavefront to generate a computer model of the optical characteristics of the selected eye; (b) measuring or defining the topography of the cornea of the selected eye; (c) incorporating into the computer model a soft contact lens, the posterior surface topography of which is defined by the topography of the cornea, offset by an arbitrary amount intended to represent the tear layer thickness of the selected eye, said lens having a defined thickness at a selected locus on the anterior surface; (d) calculating a desired topography for the anterior surface of the lens such that the wavefront will be corrected to assume a desired pattern (for example, preferably planar, the plane of which is perpendicular to the optical axis of the lens) when passing through the computer model eye/lens combination; (e) remodeling the lensType: GrantFiled: May 22, 2006Date of Patent: May 18, 2010Assignee: Contact Lens Precision Laboratories LimitedInventor: John Clamp
-
Publication number: 20080055545Abstract: Disclosed is a method of designing a soft contact lens, the method comprising the steps of: (a) measuring or defining a wavefront generated by passage of light through a selected eye and using the wavefront to generate a computer model of the optical characteristics of the selected eye; (b) measuring or defining the topography of the cornea of the selected eye; (c) incorporating into the computer model a soft contact lens, the posterior surface topography of which is defined by the topography of the cornea, offset by an arbitrary amount intended to represent the tear layer thickness of the selected eye, said lens having a defined thickness at a selected locus on the anterior surface; (d) calculating a desired topography for the anterior surface of the lens such that the wavefront will be corrected to assume a desired pattern (for example, preferably planar, the plane of which is perpendicular to the optical axis of the lens) when passing through the computer model eye/lens combination; (e) remodelling the lenType: ApplicationFiled: May 22, 2006Publication date: March 6, 2008Inventor: John Clamp
-
Patent number: D805920Type: GrantFiled: July 19, 2016Date of Patent: December 26, 2017Inventor: John Clamp