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1. 发明授权

EP2714405B1 SYSTEM AND METHOD FOR LIQUID EJECTION 有权
公开(公告)号：EP2714405B1
公开(公告)日：2018-10-24
申请号：EP12727462.9
申请日：2012-05-23
申请人： Eastman Kodak Company
发明人： PANCHAWAGH, Hrishikesh, V. , MARCUS, Michael, Alan , KATERBERG, James, A.
IPC分类号： B41J2/08 , B41J2/115
CPC分类号： B41J2/08 , B41J2/115
摘要： A continuous liquid ejection system includes a liquid chamber in fluidic communication with a nozzle. The liquid chamber contains liquid under pressure sufficient to eject a liquid jet through the nozzle. A drop formation device is associated with the liquid jet. The drop forming device is actuatable to produce a modulation in the liquid jet to selectively cause portions of the liquid jet to break off into one or more pairs of drops traveling along a path. Each drop pair is separated on average by a drop pair period. Each drop pair includes a first drop and a second drop. The drop formation device is also actuatable to produce a modulation in the liquid jet to selectively cause portions of the liquid jet to break off into one or more third drops traveling along the path separated on average by the same drop pair period. The third drop is larger than the first drop and the second drop. A charging device includes a charge electrode associated with the liquid jet and a source of varying electrical potential between the charge electrode and the liquid jet. The source of varying electrical potential provides a waveform that includes a period that is equal to the period of formation of the drop pairs or the third drops, the drop pair period. The waveform also includes a first distinct voltage state and a second distinct voltage state. The charging device and the drop formation device are synchronized to produce a first charge to mass ratio on the first drop of the drop pair, a second charge to mass ratio on the second drop of the drop pair, and a third charge to mass ratio on the third drop. The third charge to mass ratio is substantially the same as the first charge to mass ratio. A deflection device causes the first drop of the drop pair having the first charge to mass ratio to travel along a first path, and causes the second drop of the drop pair having the second charge to mass ratio to travel along a second path, and causes the third drop having a third charge to mass ratio to travel along a third path. The third path is substantially the same as the first path.

2. 发明公开

EP2714406A1 LIQUID EJECTION SYSTEM INCLUDING DROP VELOCITY MODULATION 有权
标题翻译：带有下拉高速调制的液体喷射系统
公开(公告)号：EP2714406A1
公开(公告)日：2014-04-09
申请号：EP12723795.6
申请日：2012-05-17
申请人： Eastman Kodak Company
发明人： PANCHAWAGH, Hrishikesh, V. , MARCUS, Michael, Alan , KATERBERG, James, A. , LOPEZ, Ali, Gerardo , ADIGA, Shashishekar, P. , GRACE, Jeremy, Matthew
IPC分类号： B41J2/105 , B41J2/21
CPC分类号： B41J2/105 , B41J2/07 , B41J2202/06
摘要： A continuous liquid ejection system includes a liquid chamber in fluidic communication with a nozzle. The liquid chamber contains liquid under pressure sufficient to eject a liquid jet through the nozzle. A drop formation device is associated with the liquid jet and is actuatable to produce a modulation in the liquid jet that cause portions of the liquid jet to break off into a series of drop pairs traveling along a path. Each drop pair is separated in time on average by a drop pair period. Each drop pair includes a first drop and a second drop. A charging device includes a charge electrode associated with the liquid jet and a source of varying electrical potential between the charge electrode and the liquid jet. The source of varying electrical potential provides a waveform that includes a period that is equal to the drop pair period. The waveform also includes a first distinct voltage state and a second distinct voltage state. The charging device is synchronized with the drop formation device to produce a first charge state on the first drop and to produce a second charge state on the second drop. A drop velocity modulation device varies a relative velocity of a first drop and a second drop of a selected drop pair to control whether the first drop and the second drop of the selected drop pair combine with each other to form a combined drop. The combined drop has a third charge state. A deflection device causes the first drop having the first charge state to travel along a first path, causes the second drop having the second charge state to travel along a second path, and causes the combined drop having the third charge state to travel along a third path.

3. 发明公开

EP2714405A1 LIQUID EJECTION USING DROP CHARGE AND MASS 有权
标题翻译：液体喷射CHARGE浪费和质量的方式
公开(公告)号：EP2714405A1
公开(公告)日：2014-04-09
申请号：EP12727462.9
申请日：2012-05-23
申请人： Eastman Kodak Company
发明人： PANCHAWAGH, Hrishikesh, V. , MARCUS, Michael, Alan , KATERBERG, James, A.
IPC分类号： B41J2/08 , B41J2/115
CPC分类号： B41J2/08 , B41J2/115
摘要： A continuous liquid ejection system includes a liquid chamber in fluidic communication with a nozzle. The liquid chamber contains liquid under pressure sufficient to eject a liquid jet through the nozzle. A drop formation device is associated with the liquid jet. The drop forming device is actuatable to produce a modulation in the liquid jet to selectively cause portions of the liquid jet to break off into one or more pairs of drops traveling along a path. Each drop pair is separated on average by a drop pair period. Each drop pair includes a first drop and a second drop. The drop formation device is also actuatable to produce a modulation in the liquid jet to selectively cause portions of the liquid jet to break off into one or more third drops traveling along the path separated on average by the same drop pair period. The third drop is larger than the first drop and the second drop. A charging device includes a charge electrode associated with the liquid jet and a source of varying electrical potential between the charge electrode and the liquid jet. The source of varying electrical potential provides a waveform that includes a period that is equal to the period of formation of the drop pairs or the third drops, the drop pair period. The waveform also includes a first distinct voltage state and a second distinct voltage state. The charging device and the drop formation device are synchronized to produce a first charge to mass ratio on the first drop of the drop pair, a second charge to mass ratio on the second drop of the drop pair, and a third charge to mass ratio on the third drop. The third charge to mass ratio is substantially the same as the first charge to mass ratio. A deflection device causes the first drop of the drop pair having the first charge to mass ratio to travel along a first path, and causes the second drop of the drop pair having the second charge to mass ratio to travel along a second path, and causes the third drop having a third charge to mass ratio to travel along a third path. The third path is substantially the same as the first path.

4. 发明公开

EP2583467A1 PROJECTION APPARATUS PROVIDING REDUCED SPECKLE ARTIFACTS 审中-公开
标题翻译：与降低斑点状赝像投影设备
公开(公告)号：EP2583467A1
公开(公告)日：2013-04-24
申请号：EP11727380.5
申请日：2011-06-13
申请人： Eastman Kodak Company
发明人： MARCUS, Michael, Alan , SILVERSTEIN, Barry, D. , KURTZ, Andrew, Frederick
IPC分类号： H04N9/31 , G03B21/56 , G03B21/60
CPC分类号： H04N9/3132 , G03B21/2033 , G03B21/567 , G03B21/60
摘要： A projection apparatus for producing color images having reduced speckle artifacts comprising: at least three narrow band light sources having first, second and third visible wavelength bands; a digital image source providing color digital image data; at least one spatial light modulator for forming a color image using light responsive to the color digital image data; a projection display surface including a reflective layer that reflects incident illumination in the first, second, and third wavelength bands; and a fluorescent agent that absorbs a fraction of the incident light in the first visible wavelength bands and emits light in a corresponding first emissive visible wavelength band; and a projection lens that projects the color image onto the projection display surface; wherein return light from the projection display surface contains light in both the first incident visible wavelength band and the first emissive visible wavelength band, thereby reducing speckle artifacts.

5. 发明授权

EP0521128B1 METHOD AND APPARATUS FOR OPTICALLY MEASURING CONCENTRATION OF AN ANALYTE 失效
标题翻译：方法和设备浓度的分析物进行光学测量
公开(公告)号：EP0521128B1
公开(公告)日：1996-03-13
申请号：EP92903877.6
申请日：1991-12-18
申请人： EASTMAN KODAK COMPANY
发明人： MARCUS, Michael, Alan
IPC分类号： G01N21/75 , G01N21/77 , G01N21/78
CPC分类号： G01N21/648 , G01N21/1717 , G01N21/7703 , G01N2021/1725 , G01N2021/772 , G01N2021/773 , G01N2021/7786 , G01N2201/122
摘要： Apparatus and method are disclosed in which a beam of radiant energy (16) is passed into a medium at a wavelength selected to cause a response of an analyte in the medium or of a sensor (10, 14) exposed to the medium, the sensor comprising a reagent whose optical properties change in response to the presence of the analyte in the medium. A perturbing pulse of energy (22) is passed into the medium to alter the response of the analyte or reagent to the beam of radiation; and the time rates of change in the intensity of the transmitted radiant energy are measured (18, 24, 26, 28) while the response is changing due to the influence of the perturbing pulse, after the perturbing pulse starts or ends or both, such rates of change being proportional to the concentration of the analyte in the medium. Both the beam of radiant energy and the perturbing pulse may be passed through optic fibers into the medium or sensor.

6. 发明授权

EP2714406B1 LIQUID EJECTION SYSTEM INCLUDING DROP VELOCITY MODULATION 有权
标题翻译：带有下拉高速调制的液体喷射系统
公开(公告)号：EP2714406B1
公开(公告)日：2016-12-14
申请号：EP12723795.6
申请日：2012-05-17
申请人： Eastman Kodak Company
发明人： PANCHAWAGH, Hrishikesh, V. , MARCUS, Michael, Alan , KATERBERG, James, A. , LOPEZ, Ali, Gerardo , ADIGA, Shashishekar, P. , GRACE, Jeremy, Matthew
IPC分类号： B41J2/105 , B41J2/21
CPC分类号： B41J2/105 , B41J2/07 , B41J2202/06

7. 发明公开

EP2828084A1 DROP PLACEMENT ERROR REDUCTION IN ELECTROSTATIC PRINTER 有权
标题翻译：静电印刷机中的放置错误减少
公开(公告)号：EP2828084A1
公开(公告)日：2015-01-28
申请号：EP13714448.1
申请日：2013-03-19
申请人： Eastman Kodak Company
发明人： MARCUS, Michael, Alan , PANCHAWAGH, Hrishikesh, V. , ADIGA, Shashishekar, P.
IPC分类号： B41J2/115 , B41J2/09
CPC分类号： B41J2/115 , B41J2/09
摘要： Drop formation devices are provided with a sequence of drop formation waveforms to modulate the liquid jets to selectively cause portions of the liquid jets to break off into print drops having a print drop volume V
p and non- print drops having a non-print drop volume V
np . The print and non-print drop volumes are distinct from each other. A timing delay device shifts the timing of drop formation waveforms supplied to drop formation devices of first and second nozzle groups so that print drops from the first and second nozzle groups are not aligned relative to each other. A charging device includes a charge electrode that is positioned in the vicinity of break off of liquid jets to produce a print drop charge state on drops of volume V
p and to produce a non-print drop charge state on drops of volume V
np .
摘要翻译：液滴形成装置具有一系列液滴形成波形，以调制液体射流以选择性地使液体射流的一部分分离成具有打印液滴体积V p的打印液滴和具有非打印液滴体积的非打印液滴 V np。打印和非打印下落量彼此不同。定时延迟装置使提供给第一和第二喷嘴组的液滴形成装置的液滴形成波形的时刻偏移，使得来自第一和第二喷嘴组的打印液滴不相对于彼此对准。充电装置包括充电电极，该充电电极位于液体射流断开附近以在体积V p的液滴上产生打印液滴电荷状态并且在体积V np的液滴上产生非打印液滴电荷状态。

8. 发明公开

EP2583466A1 PROJECTION DISPLAY SURFACE PROVIDING SPECKLE REDUCTION 审中-公开
标题翻译：散斑缩小投影显示区
公开(公告)号：EP2583466A1
公开(公告)日：2013-04-24
申请号：EP11727379.7
申请日：2011-06-13
申请人： Eastman Kodak Company
发明人： SILVERSTEIN, Barry, D. , MARCUS, Michael, Alan , KURTZ, Andrew, F.
IPC分类号： H04N9/31 , G03B21/56 , G03B21/60
CPC分类号： H04N9/3132 , G03B21/60 , G03B33/16
摘要： A projection display surface for reducing speckle artifacts from a projector having at least one narrow band light source having an incident visible wavelength band, wherein the incident visible wavelength band has an incident peak wavelength and an incident bandwidth, comprising: a substrate having a reflective layer that reflects incident light over at least the incident visible wavelength band; and a fluorescent agent distributed over the reflective layer, wherein the fluorescent agent absorbs a fraction of the light in the incident visible wavelength band and emits light in an emissive visible wavelength band having an emissive peak wavelength and an emissive bandwidth; wherein return light from the projection display surface produced when incident light in the incident visible wavelength band is incident on the projection display surface contains light in both the incident visible wavelength band and emissive visible wavelength band, thereby reducing speckle artifacts.

9. 发明公开

EP2510477A1 DYNAMIC ILLUMINATION CONTROL FOR LASER PROJECTION DISPLAY 审中-公开
标题翻译：动态照明控制进行激光投射显示器
公开(公告)号：EP2510477A1
公开(公告)日：2012-10-17
申请号：EP10836424.1
申请日：2010-11-24
申请人： Eastman Kodak Company
发明人： MARCUS, Michael, Alan , AGOSTINELLI, John, Alphonse , KOWARZ, Marek, W. , PHALEN, James, G.
IPC分类号： G06K9/00 , G09G5/02
CPC分类号： H04N9/3105 , H04N9/3182
摘要： A method for improving image contrast for a display apparatus obtains a frame of image data having one or more code values for each pixel in the frame of image data, analyzes the frame of image data to identify a distribution of dark regions therein. The method further adjusts at least one of the one or more code values for the frame of image data according to the distribution of dark regions in the frame of image data and attenuates a brightness level available for the image frame according to the distribution of dark regions in the frame of image data.

10. 发明授权

EP0541775B1 ACOUSTIC WEB EDGE SENSOR 失效
标题翻译：材料幅声学探头边缘
公开(公告)号：EP0541775B1
公开(公告)日：1996-07-10
申请号：EP92912634.0
申请日：1992-05-27
申请人： EASTMAN KODAK COMPANY
发明人： MARCUS, Michael, Alan
IPC分类号： G01B17/00
CPC分类号： G10K11/04 , G01D5/44 , G01S15/02 , G01V1/001 , Y10S367/907
摘要： A method and apparatus for sensing the edge of a web (14) which moves along a surface (16) of a body (22) wherein an acoustic pipe is provided in the body with an opening (32) located so that the edge (12) of the web covers a portion of the opening as a function of the position of the web, an air column (20) in the pipe is caused to resonate so that the resultant acoustic signal has a frequency spectrum which is a function of the portion of the opening which is covered by the web, and the resultant acoustic signal is utilized to provide information relating to the location of the edge of the web. The opening can comprise a series of spaced apertures (32), some of which are covered by the web, or a continuous slot (100) which is partially covered by the web. The resultant acoustic signal can be analyzed by scanning a range of signal frequencies to determine the location of the edge of the web. A web width sensor comprises a pair of adjacent web edge sensors (101, 102), one for sensing the location of each web edge, for determining web width.

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