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公开(公告)号：US20190235373A1
公开(公告)日：2019-08-01
申请号：US16263122
申请日：2019-01-31
IPC分类号： G03B21/20 , G09G3/36 , G02F1/13357
CPC分类号： G03B21/2053 , G02F1/1336 , G02F2001/133627 , G09G3/36 , G09G2300/0478 , G09G2320/046 , G09G2330/021 , G09G2330/027 , G09G2354/00
摘要： A projector includes an image projection unit for displaying an image by a liquid crystal panel, and a controller that powers off the projector after displaying a black image in the image projection unit for a predetermined time (a set refresh time) in a refresh mode for improving burn-in of the liquid crystal panel, in which the controller stops the refresh mode when an interrupt event is generated before the set refresh time elapses in the refresh mode and powers off the projector after executing an interrupt process according to the interrupt event.
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2.发明申请公开(公告)号：US20190222816A1
公开(公告)日：2019-07-18
申请号：US16245221
申请日：2019-01-10
发明人： Chi-Wen Ke , Hung-Wei Lin , Chun-Yi Lee
CPC分类号： H04N9/3182 , G03B21/2053 , G03B21/208 , H04N9/3155 , H04N9/3164 , H04N9/3197
摘要： A light source generating device, a projection apparatus and a light source generation method are provided. The light source generating device includes a first light source, an auxiliary light source, a control device, a driver and a current command generator. The first light source generates a first light beam. The auxiliary light source generates an auxiliary light beam corresponding to the first light beam. The control device generates a first driving signal to drive the first light source. The driver generates an auxiliary driving signal to drive the auxiliary light source according to the gate control signal and a current command. The current command generator receives an indication signal, and generates the current command according to the indication signal, wherein the indication signal corresponds to a driving current of the first light source. The invention has an effect of enhancing brightness/chrominance.
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公开(公告)号：US20190196310A1
公开(公告)日：2019-06-27
申请号：US16229221
申请日：2018-12-21
发明人： Tatsuya Kimoto , Ikuo Takanashi
CPC分类号： G03B21/147 , G03B9/00 , G03B21/2053 , H04N1/6033 , H04N9/3155 , H04N9/3182 , H04N9/3194
摘要： An image projection apparatus includes an optical element configured to change a light amount of light emitted from the light source, an information acquirer configured to acquire information on a gradation of the image signal, a corrector configured to correct the image signal in accordance with a change in the light amount, and a controller configured to correct the image signal based on at least one of first correction data used to correct the image signal in accordance with the change in the light amount caused by controlling the optical element, and second correction data used to correct the image signal in accordance with the change in the light amount caused by controlling the supply power.
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公开(公告)号：US20190041737A1
公开(公告)日：2019-02-07
申请号：US16043613
申请日：2018-07-24
发明人： Wataru YASUMATSU
IPC分类号： G03B21/20
CPC分类号： G03B21/2053 , G03B21/204 , G03B21/2073 , G03B21/208 , G03B21/2093
摘要： A light source device includes a light source, a homogenizer optical system provided with a first multi-lens array having a plurality of first lenses which light emitted from the light source enters, and a second multi-lens array having a plurality of second lenses each of which the light having been transmitted through corresponding one of the first lenses enters, and adapted to homogenize the light emitted from the light source, a light intensity control element adapted to control light intensity of the light emitted from the homogenizer optical system, a light collection optical system adapted to converge the light having been transmitted through the light intensity control element, and a diffusion element which the light converged by the light collection optical system enters.
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5.发明申请公开(公告)号：US20180307131A1
公开(公告)日：2018-10-25
申请号：US16021495
申请日：2018-06-28
发明人： Atsushi YAMADA , Norikazu TSUKAHARA , Kei ISHIMARU
CPC分类号： G03B21/2053 , G03B21/2033 , H04N9/3155 , H05B33/0815 , H05B33/0818 , H05B33/0851 , H05B37/0227
摘要： This light emission control circuit controls a first switching element for controlling a current that flows to a light-emitting element connected between a first node and one end of an inductor, and a second switching element for controlling a current that flows from the other end of the inductor to a second node. The light emission control circuit has a driving circuit that generates a first control signal for controlling the first switching element, and a switching control circuit that generate a second control signal for controlling the second switching element, and deactivates the second control signal in order to bring the second switching element into an off-state, during a period during which the first switching element is in an off-state.
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公开(公告)号：US10077885B2
公开(公告)日：2018-09-18
申请号：US15176096
申请日：2016-06-07
IPC分类号： F21V11/10 , F21V14/08 , G02B26/02 , F21V13/02 , F21S10/00 , F21V11/14 , G02B5/00 , G03B21/20 , F21W131/406 , F21W131/407
CPC分类号： F21V11/10 , F21S10/00 , F21V11/14 , F21V13/02 , F21V14/08 , F21W2131/406 , F21W2131/407 , G02B5/005 , G02B26/02 , G03B21/2053
摘要： An iris diaphragm comprises a stationary ring, a rotatable adjusting ring, and a plurality of shutter blades. The plurality of shutter blades forms a diaphragm aperture inside the stationary ring and rotation of the adjusting ring moves the shutter blades inside the stationary ring whereby the size of the diaphragm aperture can be changed. The shutter blades are formed as a flat opaque surface and at least one of the shutter blades comprises at least one transparent region formed in said opaque surface. A light fixture comprises such iris diaphragm arranged between a light source generating a light beam and an optical assembly configured to project the light beam along an optical axis.
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公开(公告)号：US10073331B2
公开(公告)日：2018-09-11
申请号：US15510783
申请日：2015-09-11
申请人： SONY CORPORATION
发明人： Kenta Miyakawa
CPC分类号： G03B21/2033 , G02B7/003 , G02B26/0833 , G03B21/2013 , G03B21/2053 , G03B33/12 , H04N9/3102 , H04N9/3144 , H04N9/3155 , H04N9/3158 , H04N9/3194 , H05B33/0866 , H05B33/0869 , H05B37/02 , H05B37/029
摘要： An illumination device of the disclosure includes a plurality of light sources and a correction unit. The plurality of light sources generate light having respectively different wavelengths. The correction unit corrects, on the basis of a change in relative luminosity, a light quantity of the light to be generated by at least one light source out of the plurality of light sources, to restrain a change in white balance. The change in the relative luminosity is caused by a change in wavelength associated with a change in temperature.
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公开(公告)号：US10039176B2
公开(公告)日：2018-07-31
申请号：US15502768
申请日：2014-09-30
发明人： Koichi Tagishi , Hiroki Tanaka , Yasuji Kawai
IPC分类号： H05B37/02 , H05B41/24 , H05B41/16 , G03B21/20 , H05B41/292
CPC分类号： H05B41/24 , G03B21/2053 , H05B41/16 , H05B41/2925 , H05B41/2928
摘要： A discharge lamp lighting device includes: a storage unit that stores information; a lamp drive unit that supplies drive power to the discharge lamp; a voltage detection unit that detects the lamp voltage of the discharge lamp; and a control unit that, on the basis of the voltage detection value supplied from the voltage detection unit, stores in the storage unit error log information that indicates the operating state of the discharge lamp when change of the lamp voltage indicates a predetermined voltage characteristic.
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9.发明申请公开(公告)号：US20180203339A1
公开(公告)日：2018-07-19
申请号：US15805785
申请日：2017-11-07
CPC分类号： G03B21/2053 , G02B27/48 , G03B21/008 , G03B21/2013 , G03B21/2033 , G03B33/10 , H01S3/06754 , H01S3/1095 , H04N9/3123 , H04N9/3155 , H04N9/3161 , H04N9/3164 , H04N9/3194
摘要： A high dynamic range projector (HDRP) is configured with at least one spatial light modulator having red, green and blue digital light projector (DPL) chips, a light laser source including red, green and blue (RGB) light laser systems which are operative to illuminate respective DLP chips; and a central processing unit (CPU) coupled to the DLP engines and respective RGB light laser systems, wherein the CPU is operative to determine an optimal average power of each of the RGB light laser systems at a frame rate based on a desired contrast ratio.
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公开(公告)号：US20180152679A1
公开(公告)日：2018-05-31
申请号：US15815213
申请日：2017-11-16
发明人： Kensaku MATSUMOTO , Kaname NAGATANI
CPC分类号： H04N9/3144 , G02F1/13 , G03B21/008 , G03B21/16 , G03B21/2033 , G03B21/2053 , G03B21/26 , H04N9/3105 , H04N9/3111 , H04N9/3155 , H05K7/20
摘要： An optical device includes a light modulation device disposed on an optical axis of incident light, and a holding section configured to hold the light modulation device. The holding section includes an inflow part to which a liquid supplied from an outside of the holding section inflows, a flow channel forming part disposed along a circumferential edge of the light modulation device so as to have an annular shape, and having a flow channel through which the liquid flowed from the inflow part circulates, and an outflow part from which the liquid having flowed through the flow channel outflows to the outside of the holding section.
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