Patents by Inventor Zafirios Gourgouliatos
Zafirios Gourgouliatos 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).
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Publication number: 20130317574Abstract: A phototherapy device is disclosed including: a handpiece; and a beamshaping element housed in the handpiece. The beamshaping element is adapted to receive a beam of light from an ultraviolet light source, modify the shape of the beam, and direct the modified beam to provide illumination of a region of a treatment surface, the region, having a tilable cross section at the treatment surface with an irregularly shaped boundary. In some embodiments, the irregularly shaped boundary is composed of three or more segments, each segment being sinusoid-like. In some embodiments, the beamshaping element includes a screen disposed between the light source and the treatment surface, the screen including a light transmissive with an irregularly shaped boundary, and where the irregularly shaped boundary of the illuminated area corresponds to the irregularly shaped boundary of the light transmissive region.Type: ApplicationFiled: August 2, 2013Publication date: November 28, 2013Applicant: Lerner Medical Devices, Inc.Inventors: Zafirios Gourgouliatos, David Chang
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Patent number: 8574276Abstract: A phototherapy apparatus is disclosed including: a body member; a plurality of elongated light transmitting elements, each of the elements extending between a proximal end enclosed within the body member and a distal end located outside of and distal to the body member; where the tips of the proximal ends of the light transmitting elements are located in close proximity to each other; and an optical connector configured to detachably receive an end of a lightguide and to couple light delivered by the lightguide from a source into the light transmitting elements at the proximal ends. The light coupled into each of the light transmitting elements is transmitted along the element and emitted from the distal end.Type: GrantFiled: January 15, 2008Date of Patent: November 5, 2013Assignee: Lerner Medical Devices, Inc.Inventors: Zafirios Gourgouliatos, David Chang
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Patent number: 8523925Abstract: A phototherapy apparatus for the treatment of skin disease is disclosed including: an at least partially hollow body element; a plurality of light emitting elements enclosed within the body element; and a plurality of elongated light transmitting elements, each of the light transmitting elements having a proximal end detachably affixed to the body element in proximity to one or more of the light emitting elements, and extending to an end distal the body element. For each of the elongated light transmitting elements, at least a portion of light incident from the light emitting elements onto the proximal end is directed through the light transmitting element and emitted from the distal end.Type: GrantFiled: January 15, 2008Date of Patent: September 3, 2013Assignee: Lerner Medical Devices, Inc.Inventors: Zafirios Gourgouliatos, David Chang
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Patent number: 8206426Abstract: A phototherapy apparatus is disclosed including: a handpiece including a body member and a grip; a plurality of elongated light transmitting elements, each of the elements extending between a proximal end enclosed within the body member and a distal end located outside of and distal to the body member; an ultraviolet light source; a light collection element; and one or more optical coupling elements. The proximal ends of the light transmitting elements are located in close proximity to each other The light collection element is configured to collect at least a portion of the light emitted from the light source. The one or more optical coupling elements are configured to direct at least a portion of the collected light to the proximal ends of the light transmitting elements to couple at least portion of the collected light into the light transmitting elements The light coupled into each of the light transmitting elements is transmitted along the element and emitted from the distal end.Type: GrantFiled: January 15, 2008Date of Patent: June 26, 2012Assignee: Lerner Medical Devices, Inc.Inventors: Zafirios Gourgouliatos, David Chang
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Publication number: 20080172115Abstract: A phototherapy apparatus is disclosed including: a body member; a plurality of elongated light transmitting elements, each of the elements extending between a proximal end enclosed within the body member and a distal end located outside of and distal to the body member; where the tips of the proximal ends of the light transmitting elements are located in close proximity to each other; and an optical connector configured to detachably receive an end of a lightguide and to couple light delivered by the lightguide from a source into the light transmitting elements at the proximal ends. The light coupled into each of the light transmitting elements is transmitted along the element and emitted from the distal end.Type: ApplicationFiled: January 15, 2008Publication date: July 17, 2008Inventors: Zafirios Gourgouliatos, David Chang
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Publication number: 20080172114Abstract: A phototherapy device is disclosed including: a handpiece; and a beamshaping element housed in the handpiece. The beamshaping element is adapted to receive a beam of light from an ultraviolet light source, modify the shape of the beam, and direct the modified beam to provide illumination of a region of a treatment surface, the region, having a cross section at the treatment surface with an irregularly shaped boundary. In some embodiments, the irregularly shaped boundary is composed of one or more segments, each segment being sinusoid-like. In some embodiments, the beamshaping element includes a screen disposed between the light source and the treatment surface, the screen including a light transmissive region with an irregularly shaped boundary, and where the irregularly shaped boundary of the illuminated area corresponds to the irregularly shaped boundary of the light transmissive region.Type: ApplicationFiled: January 15, 2008Publication date: July 17, 2008Inventors: Zafirios Gourgouliatos, David Chang
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Publication number: 20080172113Abstract: A phototherapy apparatus for the treatment of skin disease is disclosed including: an at least partially hollow body element; a plurality of light emitting elements enclosed within the body element; and a plurality of elongated light transmitting elements, each of the light transmitting elements having a proximal end detachably affixed to the body element in proximity to one or more of the light emitting elements, and extending to an end distal the body element. For each of the elongated light transmitting elements, at least a portion of light incident from the light emitting elements onto the proximal end is directed through the light transmitting element and emitted from the distal end.Type: ApplicationFiled: January 15, 2008Publication date: July 17, 2008Inventors: Zafirios Gourgouliatos, David Chang
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Publication number: 20080172112Abstract: A phototherapy apparatus is disclosed including: a handpiece including a body member and a grip; a plurality of elongated light transmitting elements, each of the elements extending between a proximal end enclosed within the body member and a distal end located outside of and distal to the body member; an ultraviolet light source; a light collection element; and one or more optical coupling elements. The proximal ends of the light transmitting elements are located in close proximity to each other The light collection element is configured to collect at least a portion of the light emitted from the light source. The one or more optical coupling elements are configured to direct at least a portion of the collected light to the proximal ends of the light transmitting elements to couple at least portion of the collected light into the light transmitting elements The light coupled into each of the light transmitting elements is transmitted along the element and emitted from the distal end.Type: ApplicationFiled: January 15, 2008Publication date: July 17, 2008Inventors: Zafirios Gourgouliatos, David Chang
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Patent number: 5709459Abstract: A luminaire for use during a medical procedure utilizes a single optic fiber for providing a beam of light having an initial beam width and an initial beam energy. The width of the beam is adjustable without substantially decreasing the beam energy, and the beam of adjusted width can be directed onto a surgical field. A headband for mounting a luminaire is formed of a perspiration-absorbent cloth strip, has hook-and-clasp engagement, and includes a luminaire mount.Type: GrantFiled: December 1, 1994Date of Patent: January 20, 1998Assignee: Cogent Light Technologies, Inc.Inventors: Zafirios Gourgouliatos, Mark D. Hopler, Kenneth Li
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Patent number: 5680492Abstract: A gradient index (GRIN) lens couples light from a single fiber optic into a fiber bundle or directly into the input port of an illumination device, such as a medical illumination device. The single fiber optic provides a high intensity beam of light having a high NA. An entry face of the GRIN lens is positioned adjacent to an exit aperture of the fiber within the near field of the fiber and thereby receives a beam having a substantially uniform cross-section, rather than a Gaussian cross-section as would occur with the GRIN lens positioned in the far field of the fiber. An exit face of the GRIN lens is positioned adjacent to the fiber bundle or input port of the illumination device. As such, the GRIN lens effectively images the exit aperture of the fiber of the input aperture of the fiber bundle as input port.Type: GrantFiled: August 1, 1995Date of Patent: October 21, 1997Assignee: Cogent Light Technologies, Inc.Inventors: Mark D. Hopler, Glenn P. Empey, Zafirios Gourgouliatos
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Patent number: 5642456Abstract: The present invention provides a variable attenuator for an optical transmission system having a disc-like masking plate with apertures (or image zones) formed in an arcuate control area at the periphery of the plate. Within each aperture, at least one opaque masking member is provided extending outward from the origin to the perimeter of the aperture and having a masking surface with an incremental masking area which continuously increases in magnitude with increasing radial length of the aperture. The perpendicular cross-section of each masking member with respect to the optical axis preferably forms a geometric shape having straight-line edges extending radially outward from the origin of the aperture. In the preferred embodiment, a plurality of masking members are utilized (as a pair or sets of pairs).Type: GrantFiled: September 14, 1993Date of Patent: June 24, 1997Assignee: Cogent Light Technologies, Inc.Inventors: Glenn Baker, Douglas Brenner, Zafirios Gourgouliatos, Kenneth Li, Karlheinz Strobl
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Patent number: 5430620Abstract: The present invention provides a compact surgical headlamp capable of dynamic adjustment of the resulting field of illumination, comprising at least a single core fiber optic delivery light guide, an adjustable light projection system, and a mounting mechanism for movably supporting the headlamp proximate to the surgeon's eyes. A receiving block is also provided for supporting the structure of the projection system and for coupling the delivery fiber thereto. The projection system comprises a cylindrical housing mount adapted with a centrally disposed cylindrical cavity for receiving the ferruled, output end of the delivery fiber and for allowing the light output therefrom to initially diverge within the cavity of the housing mount.Type: GrantFiled: October 8, 1993Date of Patent: July 4, 1995Assignee: Cogent Light Technologies, Inc.Inventors: Kenneth Li, Steven Murray, Zafirios Gourgouliatos, Douglas M. Brenner