Patents by Inventor Eric F. Barkan
Eric F. Barkan 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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Patent number: 7090349Abstract: Optical lens element with a prescription zone, suitable for use in wraparound or protective type eyewear. The element may also include a peripheral vision zone, with no prismatic jump between the zones. Design methods for the prescription zone include temporally rotating a prescription section about a vertical axis through the optical center thereof, and/or decentring the optical axis of said prescription section relative to the geometric axis thereof, and providing partial surface correction for astigmatic and/or mean power errors. For prescription powers in the range ?6.0 to +6.0 diopters with 0 to 3 cyl, the optical lens element may be designed such that its front surface can be mounted in a frame of constant curvature of at least 5.0 diopters, with its back surface providing good clearance from temples and eyelashes. Applications include ophthalmic sunglass lenses.Type: GrantFiled: April 12, 2005Date of Patent: August 15, 2006Assignee: Sola International Holdings Ltd.Inventors: Colin Maurice Perrott, Kevin Douglas O'Connor, Simon John Edwards, Eric F. Barkan, David H. Sklar
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Patent number: 6902271Abstract: Optical lens element with a prescription zone, suitable for use in wraparound or protective type eyewear. The element may also include a peripheral vision zone, with no prismatic jump between the zones. Design methods for the prescription zone include temporally rotating a prescription section about a vertical axis through the optical center thereof, and/or decentring the optical axis of said prescription section relative to the geometric axis thereof, and providing partial surface correction for astigmatic and/or mean power errors. For prescription powers in the range ?6.0 to +6.0 diopters with 0 to 3 cyl, the optical lens element may be designed such that its front surface can be mounted in a frame of constant curvature of at least 5.0 diopters, with its back surface providing good clearance from temples and eyelashes. Applications include ophthalmic sunglass lenses.Type: GrantFiled: January 23, 2002Date of Patent: June 7, 2005Assignee: Sola International Holdings Ltd.Inventors: Colin Maurice Perrott, Kevin Douglas O'Connor, Simon John Edwards, Eric F. Barkan, David H. Sklar
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Publication number: 20020118337Abstract: Optical lens element with a prescription zone, suitable for use in wraparound or protective type eyewear. The element may also include a peripheral vision zone, with no prismatic jump between the zones. Design methods for the prescription zone include temporally rotating a prescription section about a vertical axis through the optical center thereof, and/or decentring the optical axis of said prescription section relative to the geometric axis thereof, and providing partial surface correction for astigmatic and/or mean power errors. For prescription powers in the range −6.0 to +6.0 diopters with 0 to 3 cyl, the optical lens element may be designed such that its front surface can be mounted in a frame of constant curvature of at least 5.0 diopters, with its back surface providing good clearance from temples and eyelashes. Applications include ophthalmic sunglass lenses.Type: ApplicationFiled: January 23, 2002Publication date: August 29, 2002Inventors: Colin Maurice Perrott, Kevin Douglas O'Connor, Simon John Edwards, Eric F. Barkan, David H. Sklar
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Patent number: 6361166Abstract: Optical lens element with a prescription zone, suitable for use in wraparound or protective type eyewear. The element may also include a peripheral vision zone, with no prismatic jump between the zones. Design methods for the prescription zone include temporally rotating a prescription section about a vertical axis through the optical center thereof, and/or decentring the optical axis of said prescription section relative to the geometric axis thereof, and providing partial surface correction for astigmatic and/or mean power errors. For prescription powers in the range −6.0 to +6.0 diopters with 0 to 3 cyl, the optical lens element may be designed such that its front surface can be mounted in a frame of constant curvature of at least 5.0 diopters, with its back surface providing good clearance from temples and eyelashes. Applications include ophthalmic sunglass lenses.Type: GrantFiled: January 19, 1999Date of Patent: March 26, 2002Assignee: Sola International Holdings Ltd.Inventors: Colin Maurice Perrott, Kevin Douglas O'Connor, Simon John Edwards, Eric F. Barkan, David H. Sklar
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Patent number: 6308892Abstract: A battery pack is detachably secured by a snap-type action to a handle of a generally gun-shaped scanning head in a system for electro-optically reading coded indicia, such as bar code symbols. The battery pack includes a set of rechargeable batteries mounted in a casing.Type: GrantFiled: December 9, 1994Date of Patent: October 30, 2001Assignee: Symbol Technologies, Inc.Inventors: Jerome Swartz, Howard M. Shepard, Eric F. Barkan, Mark J. Krichever, Boris Metlitsky, Edward Barkan, Alexander M. Adelson
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Patent number: 6000617Abstract: An auditory beeper mounted in a hand-held scanning head of an electro-optical system for reading light-reflective indicia signals a user that the indicium has been found and is ready to be read by generating a series of sounds or beeps whose rate of beeping changes upon finding the indicium.Type: GrantFiled: September 9, 1997Date of Patent: December 14, 1999Assignee: Symbol Technologies, Inc.Inventors: Jerome Swartz, Howard M. Shepard, Eric F. Barkan, Alexander M. Adelson, Mark J. Krichever, Boris Metlitsky, Edward Barkan
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Patent number: 5734153Abstract: A region of light-reflective indicia is visibly illuminated in order to locate the indicia relative to a hand-held of a system for electro-optically reading the indicia. The region is formed by aiming optics and a light source for generating a visible aiming beam. The region can be single spot, a pair of spots, or a line.Type: GrantFiled: January 26, 1996Date of Patent: March 31, 1998Assignee: Symbol Technologies, Inc.Inventors: Jerome Swartz, Howard M. Shepard, Eric F. Barkan, Mark J. Krichever, Boris Metlitsky, Edward Barkan
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Patent number: 5668364Abstract: A target bearing a coded indicium is found by a system for electro-optically reading indicia. Upon the determination that the indicium is located within a range of working distances relative to a hand-held housing, a user is prompted that the indicium is ready to be read. A sonic signal is transmitted by a ranger, and a return echo from the indicium is received. An auditory prompt, such as a single tone or a series of tones, advises the user that the indicium is within range.Type: GrantFiled: May 22, 1995Date of Patent: September 16, 1997Assignee: Symbol Technologies, Inc.Inventors: Jerome Swartz, Howard M. Shepard, Eric F. Barkan, Mark J. Krichever, Boris Metlitsky, Edward Barkan, Alexander M. Adelson
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Patent number: 5468949Abstract: A portable laser diode scanning head, aimable at each symbol to be read, emits and receives non-readily-visible laser light, and is equipped with a trigger-actuated aiming light arrangement for visually locating and tracking each symbol. A compact laser diode optical train and an optical folded path assembly, as well as an interchangeable component design and an integral window construction for the head also are disclosed.Type: GrantFiled: June 11, 1993Date of Patent: November 21, 1995Assignee: Symbol Technologies, Inc.Inventors: Jerome Swartz, Howard M. Shepard, Eric F. Barkan, Mark J. Krichever, Boris Metlitsky, Edward Barkan, Alexander M. Adelson
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Patent number: 5250792Abstract: A portable laser diode scanning head, aimable at each symbol to be read, emits and receives non-readily-visible laser light, and is equipped with a trigger-actuated aiming light arrangement for visually locating and tracking each symbol. A compact laser diode optical train and an optical folded path assembly, as well as an interchangeable component design and an integral window construction for the head also are disclosed.Type: GrantFiled: August 18, 1992Date of Patent: October 5, 1993Assignee: Symbol Technologies, Inc.Inventors: Jerome Swartz, Howard M. Shepard, Eric F. Barkan, Mark J. Krichever, Boris Metlitsky, Edward Barkan, Alexander M. Adelson
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Patent number: 5247162Abstract: A portable laser diode scanning head, aimable at each symbol to be read, emits and receives non-readily-visible laser light, and is equipped with a trigger-actuated aiming light arrangement for visually locating and tracking each symbol. A compact laser diode optical train and an optical folded path assembly, as well as an interchangeable component design and an integral window construction for the head also are disclosed. Also disclosed is an optic means mounted in the laser diode scanning head including a focusing lens and an aperture stop for forming the emitted laser light to have a beam cross-section of an altered size within a working distance range.Type: GrantFiled: April 24, 1991Date of Patent: September 21, 1993Assignee: Symbol Technologies, Inc.Inventors: Jerome Swartz, Howard M. Shepard, Eric F. Barkan, Mark J. Krichever, Boris Metlitsky, Edward Barkan, Alexander M. Adelson
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Patent number: 5132525Abstract: A portable laser diode scanning head, aimable at each symbol to be read, emits and receives non-readily-visible laser light, and is equipped with a trigger-actuated aiming, light arrangement for visually locating and tracking each symbol. A compact laser diode optical train and an optical folded path assembly, as well as an interchangeable component design and an integral window construction for the head also are disclosed.Type: GrantFiled: January 22, 1991Date of Patent: July 21, 1992Inventors: Jerome Swartz, Howard M. Shepard, Eric F. Barkan, Mark J. Krichever, Boris Metlitsky, Edward Barkan
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Patent number: 5075538Abstract: A portable laser diode scanning head, aimable at each symbol to be read, emits and receives non-readily-visible laser light, and is equipped with a trigger-actuated aiming light arrangement for visually locating and tracking each symbol. A compact laser diode optical train and an optical folded path assembly, as well as an interchangeable component design and an integral window construction for the head also are disclosed. An embodiment that employs a Fresnel optical element and an embodiment that discloses a curved scanning/connecting mirror are also disclosed.Type: GrantFiled: October 16, 1989Date of Patent: December 24, 1991Assignee: Symbol Technologies Inc.Inventors: Jerome Swartz, Howard M. Shepard, Eric F. Barkan, Mark J. Krichever, Boris Metlitsky, Edward Barkan, Alexander M. Adelson
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Patent number: 4897532Abstract: A portable laser diode scanning head, aimable at each symbol to be read, emits and receives non-readily-visible laser light, and is equipped with a trigger-actuated aiming, light arrangement for visually locating and tracking each symbol. A compact laser diode optical train and an optical folded path assembly, as well as an interchangeable component design and an integral window construction for the head also are disclosed.Type: GrantFiled: January 9, 1989Date of Patent: January 30, 1990Assignee: Symbol Technologies, Inc.Inventors: Jerome Swartz, Howard M. Shepard, Eric F. Barkan, Mark J. Krichever, Boris Metlitsky, Edward Barkan
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Patent number: 4838675Abstract: A method for optimizing the performance of an ophthalmic progressive lens having a distance viewing zone, a near viewing zone, and an intermediate zone, and the resulting optimized lens are provided. The surface of the lens to be optimized, which has at least one quantitative performance characteristic, is represented by a mathematical base function which is com=bined with a selected optimization function. The optimization function includes at least one adjustable parameter and may have at least one boundary condition imposed on it along the boundary of a selected subregion of the lens surface. A quantitative merit figure of the combination of the base and optimization functions, which is related to the at least one performance characteristic by a selected merit function, is optimized through the at least one adjustable parameter of the optimization function. Through the optimization, there is obtained an improved surface function which represents the surface of the improved progressive lens.Type: GrantFiled: June 19, 1987Date of Patent: June 13, 1989Assignee: Sola International Holdings, Ltd.Inventors: Eric F. Barkan, David H. Sklar
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Patent number: 4835374Abstract: A portable laser diode scanning head, aimable at each symbol to be read, emits and receives non-readily-visible laser light, and is equipped with a trigger-actuated aiming light arrangement for visually locating and tracking each symbol. A compact laser diode optical train and an optical folded path assembly, as well as an interchangeable component design and an integral window construction for the head also are disclosed.Type: GrantFiled: August 9, 1988Date of Patent: May 30, 1989Assignee: Symbol Technologies, Inc.Inventors: Jerome Swartz, Howard M. Shepard, Eric F. Barkan, Mark J. Krichever, Boris Metlitsky, Edward Barkan, Alexander M. Adelson
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Patent number: 4825057Abstract: A portable laser diode scanning head, aimable at each symbol to be read, emits and receives non-readily-visible laser light, and is equipped with a trigger-actuated aiming light arrangement for visually locating and tracking each symbol. A compact laser diode optical train and an optical folded path assembly, as well as an interchangeable component design and an integral window construction for the head also are disclosed.Type: GrantFiled: January 26, 1988Date of Patent: April 25, 1989Assignee: Symbol Technologies, Inc.Inventors: Jerome Swartz, Howard M. Shepard, Eric F. Barkan, Mark J. Krichever, Boris Metlitsky, Edward Barkan, Alexander M. Adelson
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Patent number: 4816660Abstract: A portable laser diode scanning head, aimable at each symbol to be read, emits and receives non-readily-visible laser light, and is equipped with a trigger-actuated aiming light arrangement for visually locating and tracking each symbol. A compact laser diode optical train and an optical folded path assembly, as well as an interchangeable component design and an integral window construction for the head also are disclosed.Type: GrantFiled: May 19, 1988Date of Patent: March 28, 1989Assignee: Symbol Technologies, Inc.Inventors: Jerome Swartz, Howard M. Shepard, Eric F. Barkan, Mark J. Krichever, Boris Metlitsky, Edward Barkan
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Patent number: 4806742Abstract: A portable laser diode scanning head, aimable at each symbol to be read, emits and receives non-readily-visible laser light, and is equipped with a trigger-actuated aiming light arrangement for visually locating and tracking each symbol. A compact laser diode optical train and an optical folded path assembly, as well as an interchangeable component design and an integral window construction for the head also are disclosed.Type: GrantFiled: January 26, 1988Date of Patent: February 21, 1989Assignee: Symbol Technologies, Inc.Inventors: Jerome Swartz, Howard M. Shepard, Eric F. Barkan, Mark J. Krichever, Boris Metlitsky, Edward Barkan, Alexander M. Adelson
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Patent number: 4760248Abstract: A portable laser diode scanning head, aimable at each symbol to be read, emits and receives non-readily-visible laser light, and is equipped with a trigger-actuated aiming light arrangement for visually locating and tracking each symbol. A compact laser diode optical train and an optical folded path assembly, as well as an interchangeable component design and an integral window construction for the head also are disclosed.Type: GrantFiled: October 29, 1987Date of Patent: July 26, 1988Assignee: Symbol Technologies, Inc.Inventors: Jerome Swartz, Howard M. Shepard, Eric F. Barkan, Mark J. Krichever, Boris Metlitsky, Edward Barkan, Alexander M. Adelson