Patents by Inventor Ami Altman
Ami Altman 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: 9322939Abstract: Low cost large area photodetector arrays are provided. In a first embodiment, the photodetectors comprise an inorganic photoelectric conversion material formed in a single thick layer of material. In a second embodiment, the photodetectors comprise a lamination of several thin layers of an inorganic photoelectric conversion material, the combined thickness of which is large enough to absorb incoming x-rays with a high detector quantum efficiency. In a third embodiment, the photodetectors comprise a lamination of several layers of inorganic or organic photoelectric conversion material, wherein each layer has a composite scintillator coating.Type: GrantFiled: August 5, 2010Date of Patent: April 26, 2016Assignee: KONINKLIJKE PHILIPS N.V.Inventors: Simha Levene, Ami Altman, Naor Wainer, Cornelis Reinder Ronda, Eliav Itshak Haskal, Dagobert Michel De Leeuw
-
Patent number: 8513612Abstract: An imaging system includes a macro organic photodiode array with rows and columns of printed photodiodes. The array may be bendable for easy manufacture and assembly on a curved support within an imaging system. Two or more layers of photodiodes may be provided for use in a spectral CT imaging system or as slices.Type: GrantFiled: March 15, 2010Date of Patent: August 20, 2013Assignee: Koninklijke Philips N.V.Inventors: Simha Levene, Ami Altman, Naor Wainer, Dagobert M. de Leeuw, Eliav Haskal
-
Patent number: 8391439Abstract: A radiation detector (24) includes a two-dimensional array of upper scintillators (30?) which is disposed facing an x-ray source (14) to convert lower energy radiation events into visible light and transmit higher energy radiation. A two-dimensional array of lower scintillators (30B) is disposed adjacent the upper scintillators (30?) distally from the x-ray source (14) to convert the transmitted higher energy radiation into visible light. Upper and lower photodetectors (38?, 30B) are optically coupled to the respective upper and lower scintillators (30?,30B) at an inner side (60) of the scintillators (30?,30B). An optical element (100) is optically coupled with the upper scintillators (30?) to collect and channel the light from the upper scintillators (30?) into corresponding upper photodetectors (38?).Type: GrantFiled: April 6, 2006Date of Patent: March 5, 2013Assignee: Koninklijke Philips Electronics N.V.Inventors: Simha Levene, Olga Shapiro, Ami Altman, Naor Wainer
-
Publication number: 20120153163Abstract: Low cost large area photodetector arrays are provided. In a first embodiment, the photodetectors comprise an inorganic photoelectric conversion material formed in a single thick layer of material. In a second embodiment, the photodetectors comprise a lamination of several thin layers of an inorganic photoelectric conversion material, the combined thickness of which is large enough to absorb incoming x-rays with a high detector quantum efficiency. In a third embodiment, the photodetectors comprise a lamination of several layers of inorganic or organic photoelectric conversion material, wherein each layer has a composite scintillator coating.Type: ApplicationFiled: August 5, 2010Publication date: June 21, 2012Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.Inventors: Simha Levene, Ami Altman, Naor Wainer, Cornelis Reinder Ronda, Eliav Itshak Haskal, Dagobert Michel De Leeuw
-
Publication number: 20120037809Abstract: An imaging system includes a macro organic photodiode array with rows and columns of printed photodiodes. The array may be bendable for easy manufacture and assembly on a curved support within an imaging system. Two or more layers of photodiodes may be provided for use in a spectral CT imaging system or as slices.Type: ApplicationFiled: March 15, 2010Publication date: February 16, 2012Applicant: KONINKLIJKE PHILIPS ELECTRONICS N. V.Inventors: Simha Levene, Ami Altman, Naor Wainer, Dagobert M. de Leeuw, Eliav Haskal
-
Patent number: 7968853Abstract: A radiation detector (24) includes a two-dimensional array of upper scintillators (30?) which is disposed facing an x-ray source (14) to convert lower energy radiation into visible light and transmit higher energy radiation. A two-dimensional array of lower scintillators (30B) is disposed adjacent the upper scintillators (30?) distally from the x-ray source (14) to convert the transmitted higher energy radiation into visible light. Respective active areas (94, 96) of each upper and lower photodetector arrays (38?, 38B) are optically coupled to the respective upper and lower scintillators (30?, 30B) at an inner side (60) of the scintillators (30?, 30B) which inner side (60) is generally perpendicular to an axial direction (Z).Type: GrantFiled: April 10, 2006Date of Patent: June 28, 2011Assignee: Koninklijke Philips Electronics N.V.Inventors: Ami Altman, Olga Shapiro, Simha Levene, Naor Wainer
-
Publication number: 20100282972Abstract: The present invention relates to an indirect radiation detector for detecting radiation (X), e.g. for medical imaging systems. The detector has an array of pixels (P1-P6), each pixel (P) being sub-divided into at least a first and a second sub-pixel (PE1, PE2). Each sub-pixel has a cross-sectional area (A1, A2) parallel to a surface plane (60) of the array. The cross-sectional area (A1) of the first sub-pixel (PE1) is different, e.g. smaller, from the cross-sectional area (A2) of the second sub-pixel (PE2) to provide a dynamic range of detectable flux densities. Additionally, the first sub-pixel (PE1) has a photosensitive device (PS1) arranged on a side of the sub-pixel, said side being substantially orthogonal to said surface plane of the array of pixels to provide a good optical coupling. The detector allows high-flux photon counting with a relatively simple detector design.Type: ApplicationFiled: October 29, 2008Publication date: November 11, 2010Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.Inventors: Raz Carmi, Ami Altman
-
Publication number: 20100220833Abstract: A radiation detector (24) includes a two-dimensional array of upper scintillators (30?) which is disposed facing an x-ray source (14) to convert lower energy radiation events into visible light and transmit higher energy radiation. A two-dimensional array of lower scintillators (30B) is disposed adjacent the upper scintillators (30?) distally from the x-ray source (14) to convert the transmitted higher energy radiation into visible light. Upper and lower photodetectors (38?, 30B) are optically coupled to the respective upper and lower scintillators (30?,30B) at an inner side (60) of the scintillators (30?,30B). An optical element (100) is optically coupled with the upper scintillators (30?) to collect and channel the light from the upper scintillators (30?) into corresponding upper photodetectors (38?).Type: ApplicationFiled: April 6, 2006Publication date: September 2, 2010Applicant: KONINKLIJKE PHILIPS ELECTRONICS N. V.Inventors: Simha Levene, Olga Shapiro, Ami Altman, Naor Wainer
-
Patent number: 7573035Abstract: A radiation detector (24) for an imaging system includes a two-dimensional array (50) of nondeliquescent ceramic scintillating fibers or sheets (52). The scintillating fibers (52) are manufactured from a GOS ceramic material. Each scintillating fiber (52) has a width (d2) between 0.1 mm and 1 mm, a length (h2) between 0.1 mm and 2 mm and a height (h8) between 1 mm and 2 mm. Such scintillating fiber (52) has a height (h8) to cross-sectional dimension (d2, h2) ratio of approximately 10 to 1. The scintillating fibers (52) are held together by layers (86, 96) of a low index coating material. A two-dimensional array (32) of photodiodes (34) is positioned adjacent and in optical communication with the scintillating fibers (52) to convert the visible light into electrical signals. A grid (28) is disposed by the scintillating array (50). The grid (28) has the apertures (30) which correspond to a cross-section of the photodiodes (34) and determine a spatial resolution of the imaging system.Type: GrantFiled: October 12, 2005Date of Patent: August 11, 2009Assignee: Koninklijke Philips Electronics N.V.Inventors: Simha Levene, Rodney A. Mattson, Ami Altman
-
Publication number: 20080210877Abstract: A radiation detector (24) includes a two-dimensional array of upper scintillators (30?) which is disposed facing an x-ray source (14) to convert lower energy radiation into visible light and transmit higher energy radiation. A two-dimensional array of lower scintillators (30B) is disposed adjacent the upper scintillators (30?) distally from the x-ray source (14) to convert the transmitted higher energy radiation into visible light. Respective active areas (94, 96) of each upper and lower photodetector arrays (38?, 38B) are optically coupled to the respective upper and lower scintillators (30?, 30B) at an inner side (60) of the scintillators (30?, 30B) which inner side (60) is generally perpendicular to an axial direction (Z).Type: ApplicationFiled: April 10, 2006Publication date: September 4, 2008Applicant: KONINKLIJKE PHILIPS ELECTRONICS N. V.Inventors: Ami Altman, Olga Shapiro, Simha Levene, Naor Wainer
-
Publication number: 20080063138Abstract: A radiation detector (24) for an imaging system includes a two-dimensional array (50) of nondeliquescent ceramic scintillating fibers or sheets (52). The scintillating fibers (52) are manufactured from a GOS ceramic material. Each scintillating fiber (52) has a width (d2) between 0.1 mm and 1 mm, a length (h2) between 0.1 mm and 2 mm and a height (h8) between 1 mm and 2 mm. Such scintillating fiber (52) has a height (h8) to cross-sectional dimension (d2, h2) ratio of approximately 10 to 1. The scintillating fibers (52) are held together by layers (86, 96) of a low index coating material. A two-dimensional array (32) of photodiodes (34) is positioned adjacent and in optical communication with the scintillating fibers (52) to convert the visible light into electrical signals. A grid (28) is disposed by the scintillating array (50). The grid (28) has the apertures (30) which correspond to a cross-section of the photodiodes (34) and determine a spatial resolution of the imaging system.Type: ApplicationFiled: October 12, 2005Publication date: March 13, 2008Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.Inventors: Simha Levene, Rodney Mattson, Ami Altman