Patents by Inventor Joseph F. Revelli
Joseph F. Revelli 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: 7719182Abstract: An organic light-emitting diode (OLED) device, comprising: first and second non-metallic transparent electrodes, and one or more layers of organic material formed between the first and second non-metallic transparent electrodes, the layers of organic material including one or more light-emitting layers; and one or more non-metallic reflective layers located on a side of either of the first or second non-metallic transparent electrodes opposite to the organic material layers; wherein the device further comprises a light transmissive scattering layer in optical contact with the organic material layers and the electrodes or wherein at least one of the one or more non-metallic reflective layers comprises a reflective scattering layer in optical contact with the organic material layers and the electrodes. Additionally, a low-index layer is preferably employed in various embodiments to improve device sharpness.Type: GrantFiled: September 22, 2005Date of Patent: May 18, 2010Assignee: Global OLED Technology LLCInventors: Ronald S. Cok, Joseph F. Revelli, Jr., Joel D. Shore, Lee W. Tutt, Donald R. Preuss
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Patent number: 7623692Abstract: A method of generating a pulmonary nodule image from a chest radiograph. The method includes the steps of: producing a map of a clear lung field; removing low frequency variation from the clear lung field to generate a level image; and performing at least one grayscale morphological operation on the level image to generate a nodule-bone image. Pulmonary nodules can be detected using the nodule-bone image by the further steps of: pulmonary nodules from a chest radiograph. The method includes the steps of: identifying candidate nodule locations in the nodule-bone image; segmenting a region around each candidate nodule location in the nodule-bone image; and using the features of the segmented region to determine if a candidate is a nodule.Type: GrantFiled: July 22, 2005Date of Patent: November 24, 2009Assignee: Carestream Health, Inc.Inventors: Jay S. Schildkraut, Michael D. Heath, Robert A. Senn, Joseph F. Revelli, Jr., Brette Luck
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Patent number: 7548021Abstract: An organic light-emitting diode (OLED) device, comprising: first and second transparent electrodes, and one or more layers of organic material formed between the first and second transparent electrodes, the layers of organic material including one or more light-emitting layers; a reflective layer having a surface plasmon-polariton-supporting reflective surface located on a side of either of the first or second transparent electrodes opposite to the organic material layers; and a scattering layer in optical contact with the organic material layers and the electrodes. In certain embodiments, layer spacing is preferably designed such that the distance between the reflective surface and at least one of the one or more light-emitting layers is equal to or greater than 60 nm. Additionally, a low-index layer is preferably employed in various embodiments to improve device sharpness.Type: GrantFiled: September 22, 2005Date of Patent: June 16, 2009Assignee: Eastman Kodak CompanyInventors: Ronald S. Cok, Joseph F. Revelli, Jr., Donald R. Preuss, Joel D. Shore, Lee W. Tutt
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Patent number: 6925195Abstract: A method for generating a stabilized three-dimensional image from a scannerless range imaging system comprises the steps of acquiring a bundle of three or more phase offset images corresponding to modulated illumination reflected from a scene, whereby one or more of the phase offset images includes image motion relative to another phase offset image; searching for a stable chain of phase offset images in the image bundle, wherein a stable chain is a collection of images that is obtained by testing the phase offset images against a confidence measure that separates less severe correctable image motion from more severe image motion and then populating the stable chain only with those phase offset images that meet the confidence measure for correctable image motion; correcting for the image motion in the stable chain of images if a stable chain of at least three phase offset images is found to exist; and computing a stabilized three-dimensional image using the phase offset images from the stable chain of phase oType: GrantFiled: May 28, 2002Date of Patent: August 2, 2005Assignee: Eastman Kodak CompanyInventors: Nathan D. Cahill, Lawrence A. Ray, Joseph F. Revelli, Jr.
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Publication number: 20040100565Abstract: In a method of obtaining an extended dynamic range panorama of a scene from a plurality of limited dynamic range images captured by an image sensor in a digital camera, a plurality of digital images comprising image pixels of the scene are captured from a plurality of positions by exposing the image sensor to light transmitted from the scene, wherein light transmittance upon the image sensor is adjustable. Each image is evaluated after it is captured for an illumination level exceeding the limited dynamic range of the image for at least some of the image pixels. Based on the evaluation of each image exceeding the limited dynamic range, the light transmittance upon the image sensor is adjusted in order to obtain a subsequent digital image having a different scene brightness range.Type: ApplicationFiled: November 22, 2002Publication date: May 27, 2004Applicant: Eastman Kodak CompanyInventors: Shoupu Chen, Nathan D. Cahill, Joseph F. Revelli, Lawrence A. Ray
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Publication number: 20040008267Abstract: In a method of obtaining an extended dynamic range image of a scene from a plurality of limited dynamic range images captured by an image sensor in a digital camera, a plurality of digital images comprising image pixels of the scene are captured by exposing the image sensor to light transmitted from the scene, wherein light transmittance upon the image sensor is adjustable. Each image is evaluated after it is captured for an illumination level exceeding the limited dynamic range of the image for at least some of the image pixels. Based on the evaluation of each image exceeding the limited dynamic range, the light transmittance upon the image sensor is adjusted in order to obtain a subsequent digital image having a different scene brightness range. The plurality of digital images are stored, and subsequently the stored digital images are processed to generate a composite image having an extended dynamic range greater than any of the digital images by themselves.Type: ApplicationFiled: July 11, 2002Publication date: January 15, 2004Applicant: Eastman Kodak CompanyInventors: Shoupu Chen, Joseph F. Revelli, Nathan D. Cahill, Lawrence A. Ray
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Publication number: 20030223618Abstract: A method for generating a stabilized three-dimensional image from a scannerless range imaging system comprises the steps of acquiring a bundle of three or more phase offset images corresponding to modulated illumination reflected from a scene, whereby one or more of the phase offset images includes image motion relative to another phase offset image; searching for a stable chain of phase offset images in the image bundle, wherein a stable chain is a collection of images that is obtained by testing the phase offset images against a confidence measure that separates less severe correctable image motion from more severe image motion and then populating the stable chain only with those phase offset images that meet the confidence measure for correctable image motion; correcting for the image motion in the stable chain of images if a stable chain of at least three phase offset images is found to exist; and computing a stabilized three-dimensional image using the phase offset images from the stable chain of phase oType: ApplicationFiled: May 28, 2002Publication date: December 4, 2003Applicant: Eastman Kodak CompanyInventors: Nathan D. Cahill, Lawrence A. Ray, Joseph F. Revelli
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Patent number: 6624874Abstract: An apparatus for optically embedding hidden data in a source image, wherein the hidden data is updateable in real-time, the apparatus includes (a) optical masks bearing a data image and an encoding carrier image either or both of which may be updated in real-time; (b) optical components for convolving, the data image with the encoding carrier image to produce a spatially dispersed data image; and (c) optical beam combiner for combining the spatially dispersed data image with the source image to produce a source image containing embedded hidden data.Type: GrantFiled: December 21, 2001Date of Patent: September 23, 2003Assignee: Eastman Kodak CompanyInventors: Joseph F. Revelli, Jr., Chris W. Honsinger, Paul W. Jones, Lawrence A. Ray
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Publication number: 20030147002Abstract: A color scannerless range imaging system comprises an illumination system for illuminating a scene with modulated illumination of a predetermined modulation frequency, whereby some of the modulated illumination is reflected from objects in the scene; a sequentially selectable color filter arrangement positioned in an optical path of the reflected illumination and comprised of a first color filter that preferentially transmits the reflected modulated illumination and a plurality of other color filters that preferentially transmit reflected unmodulated illumination; a control system for driving the color filter arrangement to sequentially provide each of the color filters in the optical path; an image intensifier for modulating the reflected modulated illumination from the scene with the predetermined modulation frequency, thereby generating phase images needed for range information; and an image capture system for capturing a plurality of images output by the image intensifier, including a plurality of phase iType: ApplicationFiled: February 6, 2002Publication date: August 7, 2003Applicant: Eastman Kodak CompanyInventors: Lawrence A. Ray, Louis R. Gabello, Joseph F. Revelli, Dennis J. Whipple
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Publication number: 20030117584Abstract: An apparatus for optically embedding hidden data in a source image, wherein the hidden data is updateable in real-time, the apparatus includes (a) optical masks bearing a data image and an encoding carrier image either or both of which may be updated in real-time; (b) optical components for convolving, the data image with the encoding carrier image to produce a spatially dispersed data image; and (c) optical beam combiner for combining the spatially dispersed data image with the source image to produce a source image containing embedded hidden data.Type: ApplicationFiled: December 21, 2001Publication date: June 26, 2003Applicant: Eastman Kodak CompanyInventors: Joseph F. Revelli, Chris W. Honsinger, Paul W. Jones, Lawrence A. Ray
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Patent number: 6410930Abstract: An alignment method is provided for a color scannerless range imaging system whereby the separate optical paths of colored texture and monochromatic range images may be precisely aligned. The range imaging system includes an illumination system for illuminating a scene with modulated infrared illumination, image forming optics for forming an image of the scene, optical means for forming first and second optical paths between the image forming optics and an image sensor, a transponder subject to modulation located in the first optical path for amplifying and converting infrared light to visible light to form a range image on the image sensor.Type: GrantFiled: August 24, 2000Date of Patent: June 25, 2002Assignee: Eastman Kodak CompanyInventors: Joseph F. Revelli, Jr., Lawrence A. Ray
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Patent number: 6211997Abstract: A modulator for a high optical power printing includes a transparent crystal and a patterned buffer layer formed over one of the surfaces of the crystal. An electrode array is formed so that each electrode of the electrode array is patterned directly on each portion of the patterned buffer layer. In a further feature of the invention, the crystal substrate can be formed so that opposing endfaces through which high optical power laser light passes are at an angle and are antireflection coated. A transparent and electrically insulating overcoat is provided above the electrodes.Type: GrantFiled: March 31, 1999Date of Patent: April 3, 2001Assignee: Eastman Kodak CompanyInventors: Alan C. G. Nutt, Sujatha Ramanujan, Joseph F. Revelli, Jr.
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Patent number: 6043001Abstract: A method for forming lenslets of a solid-state imager, includes providing a first etch-stop layer on a spacer layer formed on a substrate or layer(s) on a substrate; providing a patterned first photosensitive resin layer to form a first mask pattern; performing an etch transfer of the first mask pattern to the first photosensitive resin layer to form a first etch-stop mask pattern, and removing the first photosensitive resin layer; providing a transparent lenslet-forming layer on the spacer layer.Type: GrantFiled: February 20, 1998Date of Patent: March 28, 2000Assignee: Eastman Kodak CompanyInventors: Jeffrey I. Hirsh, Joseph F. Revelli, Joseph Jech
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Patent number: 6040857Abstract: A device is described for a very low cost anti-aliasing filter to be used to suppress aliasing artifacts present in discretely sampled solid-state electronic imaging devices. This device includes a transparent substrate upon which a multiplicity of transparent phase spots are placed. The diameter and thickness of the transparent phase spots are designed in such a way to cause just the right amount of blurring to suppress the aliasing artifacts, yet render a reasonable sharp image for spatial frequencies below the sampling frequency of the imager. This suppression is further accomplished over a broad spectral range. The phase noise filter thus formed can be placed either in object space or in image space.Type: GrantFiled: May 27, 1997Date of Patent: March 21, 2000Assignee: Eastman Kodak CompanyInventors: Jeffrey I. Hirsh, Joseph F. Revelli, Jr., Alan C. G. Nutt
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Patent number: 5723264Abstract: In a method for forming lenslets which collect light and focus it onto photosensitive elements of an electronic imager includes providing a transparent lenslet-forming layer on a substrate or on layers on the substrate,(a) providing a transparent polyester lenslet-forming layer on a substrate or on layer(s) on the substrate, the polyester containing repeat units, in part, having the structure ##STR1## wherein: n is 2 or greater;x is selected from the group consisting of H, CH.sub.3, Br and Cl; andZ is selected from the group consisting of nil, O, S, CH.sub.2, C.dbd.O, SO, SO.sub.2, CH--CH.sub.3, CH.sub.3 --C--CH.sub.3, CF.sub.3 --C--CF.sub.3, CH.sub.3 --C--CH.sub.2 CH.sub.Type: GrantFiled: March 14, 1996Date of Patent: March 3, 1998Assignee: Eastman Kodak CompanyInventors: Douglas R. Robello, Joseph F. Revelli, Jeffrey I. Hirsh
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Patent number: 5691116Abstract: A method for forming lenslets which collect light and focus the light onto photosensitive elements of an electronic imager. The method includes providing a transparent lenslet-forming layer on a substrate or on layers on the substrate, forming a thin etch-stop layer on the transparent lenslet-forming layer and patterning a thin photosensitive resin mask on the etch-stop layer so that the mask pattern corresponds to lenslets to be formed. The method further includes transferring by etching the pattern of the photosensitive resin mask to the thin etch-stop layer to form a thin etch-stop mask, anisotropically plasma etching the transparent lenslet-forming layer according to the patterned thin etch-stop mask, removing the thin etch-stop mask, and thermally reflowing the etched transparent lenslet-forming layer to form the lenslets.Type: GrantFiled: September 20, 1996Date of Patent: November 25, 1997Assignee: Eastman Kodak CompanyInventors: Joseph F. Revelli, Jeffrey I. Hirsh, Joseph Jech, Douglas R. Robello, Stephen P. Barry, Alan C. G. Nutt
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Patent number: 5605783Abstract: A method for forming lenslets which collect light and focuses it onto photosensitive elements of an electronic imager includes providing a transparent lenslet-forming layer on a substrate or on layers on the substrate and forming a thin etch-stop layer on the transparent lenslet-forming layer and patterning the etch-stop layer so that the mask pattern corresponds to lenslets to be formed, The method further includes anisotropically plasma etching the transparent lenslet-forming layer according to the thin etch-stop mask pattern, removing the thin etch-stop mask, and thermally reflowing the patterned transparent layer to form the transparent lenslets.Type: GrantFiled: January 6, 1995Date of Patent: February 25, 1997Assignee: Eastman Kodak CompanyInventors: Joseph F. Revelli, Jeffrey I. Hirsh, Joseph Jech, Douglas R. Robello, Stephen P. Barry, Alan C. G. Nutt
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Patent number: 5418871Abstract: A mulitchannel optical waveguide page scanner has a diode laser and a primary optical channel waveguide. Light is coupled from the diode into the primary channel waveguide. Multiple secondary side channels each have a thin-film electro-optic waveguide modulator. A series of T-branch connectors distribute light from the primary channel to the secondary side channels. Each of the electro-optic waveguide modulators is addressable individually.Type: GrantFiled: August 23, 1994Date of Patent: May 23, 1995Assignee: Eastman Kodak CompanyInventors: Joseph F. Revelli, Jr., Alan C. G. Nutt, Jay S. Schildkraut, Eric J. Lim, David A. Roberts, David J. Williams, Douglas R. Robello, Thomas L. Penner, Sanwal Sarraf, Chih-Li Chuang
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Patent number: 5390157Abstract: An integrated optic head contains a planar and a channel waveguide, a waveguide condensing lens, and integrated waveguide photodetectors. The main portion of the beam returning from the disk is focused by the lens onto an integrated waveguide photodetector to provide the data signal. A smaller portion of the beam is sampled by channel waveguide Mach-Zehnder (MZ) interferometers that measure the beam wavefront curvature to provide the focus error signal (FES). Additional channel waveguides provide reference signals for the interferometers and provide a means of measuring the tracking error signal (TES). The TES method includes subtracting light detected by one channel waveguide detector from light detected by another, which difference is the tracking error. The FES method includes obtaining the difference in the ratios of the light emanating from two interferometers divided by the light emanating from their respective channel waveguides, which difference in ratios is the focus error.Type: GrantFiled: July 15, 1992Date of Patent: February 14, 1995Assignee: Eastman Kodak CompanyInventor: Joseph F. Revelli, Jr.
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Patent number: 5371817Abstract: A mulitchannel optical waveguide page scanner has a diode laser and a primary optical channel waveguide. Light is coupled from the diode into the primary channel waveguide. Multiple secondary side channels each have a thin-film electro-optic waveguide modulator. A series of T-branch connectors distribute light from the primary channel to the secondary side channels. Each of the electro-optic waveguide modulators is addressable individually.Type: GrantFiled: February 16, 1993Date of Patent: December 6, 1994Assignee: Eastman Kodak CompanyInventors: Joseph F. Revelli, Jr., Alan C. G. Nutt, Jay S. Schildkraut, Eric J. Lim, David A. Roberts, David J. Williams, Douglas R. Robello, Thomas L. Penner, Sanwal Sarraf, Chih-Li Chuang