-
1.发明申请公开(公告)号：US20190090334A1
公开(公告)日：2019-03-21
申请号：US16135274
申请日：2018-09-19
发明人： Junichi SUZUKI , Masaru KONO
IPC分类号： H05B41/38 , H05B41/282 , H05B41/288 , G03B21/20 , H04N9/31
CPC分类号： H05B41/38 , G03B21/2026 , G03B21/2053 , H04N9/3155 , H05B41/2828 , H05B41/2887 , H05B41/2888 , H05B41/2923 , H05B41/2925 , H05B41/2928
摘要： A discharge lamp drive device includes a discharge lamp driver adapted to supply a drive current to a discharge lamp, a control section adapted to control the discharge lamp driver, and a storage section adapted to store a plurality of drive patterns of the drive current. Each of the drive patterns has a plurality of drive parameters. The plurality of drive patterns includes a first drive pattern and a second drive pattern different from each other in a value of at least one of the plurality of drive parameters. The control section is configured to execute the first drive pattern and the second drive pattern in accordance with at least one of accumulated lighting time of the discharge lamp and an individual of the discharge lamp in a case in which an inter-electrode voltage of the discharge lamp is at a predetermined voltage value.
-
公开(公告)号：US10054850B2
公开(公告)日：2018-08-21
申请号：US14861738
申请日：2015-09-22
发明人： Kunihiko Yano
CPC分类号： G03B21/2093 , F21V9/06 , F21V13/02 , G03B21/20 , G03B21/2026
摘要： A light source device includes a light source that emits light including light having a wavelength in the ultraviolet region, a first filter that removes light of a particular wavelength region of the ultraviolet region among light from the light source and that transmits light of another wavelength region, a second filter that is arranged on a side of the first filter opposite to that on which the light source is arranged, and that removes light of a wavelength region that is different from the particular wavelength region of the ultraviolet region among the light transmitted by the first filter, wherein the second filter has a half-value wavelength that is shorter than a half-value wavelength of the first filter.
-
公开(公告)号：US09939716B2
公开(公告)日：2018-04-10
申请号：US14030410
申请日：2013-09-18
发明人： Shun Sato
IPC分类号： G03B21/14 , H05B41/292 , G03B21/20
CPC分类号： G03B21/142 , G03B21/2026 , H05B41/2928
摘要： A projector includes a discharge lamp, a discharge lamp lighting device adapted to supply the discharge lamp with a drive current for driving the discharge lamp, a timer section adapted to count lighting time of the discharge lamp, and a control section adapted to control the discharge lamp lighting device to select and then perform either of a plurality of operation modes different in drive current to be output to the discharge lamp from each other, and the control section selects the operation mode based on the lighting time counted by the timer section.
-
公开(公告)号：US09927687B2
公开(公告)日：2018-03-27
申请号：US14616835
申请日：2015-02-09
发明人： Kenji Maruyama
CPC分类号： G03B21/2066 , F21V7/04 , G03B21/2026
摘要： In a light source unit, a high-pressure discharge lamp includes a first and a second external electrode to emit light as electric power is supplied thereto through a first and a second power supply line, a concave reflection mirror, which reflects the light, has an opening at the center thereof to pass one end of the high-pressure discharge lamp therethrough, and a base holding the one end of the high-pressure discharge lamp to allow the first power supply line to be connected to the first external electrode. Further, there are a reinforcing member covering at least a part of a rear surface of the concave reflection mirror, and a restraint member being held between the rear surface and the reinforcing member to restrain a movable range of the second power supply line. The restraint member makes contact with a part of the second power supply line.
-
公开(公告)号：US09867265B2
公开(公告)日：2018-01-09
申请号：US15168634
申请日：2016-05-31
发明人： Shun Sato , Junichi Suzuki , Satoshi Kito
IPC分类号： H05B41/288 , G03B21/00 , G03B21/20 , H01J61/02 , H01J61/073 , H01J61/54 , H04N9/31 , H05B41/392
CPC分类号： H05B41/2887 , G03B21/006 , G03B21/2026 , G03B21/2053 , H01J61/025 , H01J61/073 , H01J61/545 , H04N9/3105 , H04N9/3197 , H05B41/2883 , H05B41/392
摘要： A discharge lamp driving device according to one aspect of the invention includes a discharge lamp driving section configured to supply a driving current to a discharge lamp including electrodes and a control section configured to control the discharge lamp driving section. The control section controls the discharge lamp driving section such that a mixed period is provided in which a first period in which an alternating current having a first frequency is supplied to the discharge lamp and a second period in which a direct current is supplied to the discharge lamp are alternately repeated. The first frequency includes a plurality of frequencies different from one another. The control section temporally changes the length of the first period.
-
公开(公告)号：US09817302B2
公开(公告)日：2017-11-14
申请号：US15168818
申请日：2016-05-31
发明人： Daiki Yuto , Takahiro Takizawa
CPC分类号： G03B21/16 , G03B21/2013 , G03B21/2026
摘要： A lighting device includes a plurality of light source devices and a holding member (first lamp unit and second lamp unit) holding the plurality of light source devices. The light source device has a light source and a storing body for storing the light source. The storing body has a plurality of openings introducing cooling gas and the holding member (first lamp unit and second lamp unit) includes a diverging device guiding the cooling gas to at least one opening among the plurality of openings.
-
公开(公告)号：US20170295350A1
公开(公告)日：2017-10-12
申请号：US15474085
申请日：2017-03-30
发明人： Tomohiro YOKOO
CPC分类号： H04N9/3155 , G03B21/2026 , G03B21/2053 , H05B41/02 , H05B41/24 , H05B41/2887 , H05B41/2928 , H05B41/36 , Y02B20/202
摘要： A discharge lamp driving device includes a discharge lamp driving unit configured to supply a driving current to a discharge lamp, and a control unit configured to control the discharge lamp driving unit. The discharge lamp driving device is configured to provide a first hybrid period and a second hybrid period each alternately including a first AC period in which an AC current is supplied and a first DC period in which a DC current with a first polarity is supplied. The control unit, in the first hybrid period, is configured to change a ratio of length of the first DC period to length of the first AC period to be increased, and in the second hybrid period, is configured to change a ratio of the length of the first AC period to the length of the first DC period to be increased.
-
8.发明授权公开(公告)号：US09787957B2
公开(公告)日：2017-10-10
申请号：US14855756
申请日：2015-09-16
申请人： Nobuhiro Hosoi , Takahiro Kado
发明人： Nobuhiro Hosoi , Takahiro Kado
CPC分类号： H04N9/3155 , G02B26/008 , G03B21/2026 , G03B21/2053 , G03B33/08 , H04N9/3111 , H04N9/3114 , H04N9/3158
摘要： An image projection apparatus includes a light source configured to emit light with a luminance according to electric power; a color wheel configured to sequentially transmit the light through multiple color filters arranged along a circumferential direction; a light modulation element configured to form an image by modulating an intensity of the light transmitted through the color wheel according to an input signal representing input image data; and a selection controller configured to select, out of a first waveform indicating temporal change in electric power supplied to the light source in a first mode and a second waveform indicating temporal change in electric power supplied to the light source in a second mode, the second waveform when a luminance value of the input signal is equal to or less than a first threshold. A brightness of the image in the second mode is lower than that in the first mode.
-
公开(公告)号：US09756711B2
公开(公告)日：2017-09-05
申请号：US15109567
申请日：2014-11-14
发明人： Koji Yamada
IPC分类号： H05B41/24 , H05B41/288 , H05B41/292 , G03B21/20 , H01J61/82 , H05B41/392
CPC分类号： H05B41/2888 , G03B21/2026 , G03B21/2053 , H01J9/505 , H01J61/0732 , H01J61/20 , H01J61/26 , H01J61/822 , H01J61/86 , H05B41/2886 , H05B41/2887 , H05B41/2928 , H05B41/392 , Y02B20/202 , Y02B20/208 , Y02W30/828
摘要： There is provide a discharge lamp lighting apparatus that comprises a discharge lamp and a power supply device configured to drive a regular lighting mode and the low electric power lighting mode in a switchable manner. The power supply device configured to control a power supply to the discharge lamp such that, in the low electric power lighting mode, after a secondary protrusion forming process in which an alternating current having a frequency equal to or greater than the basic frequency in the regular lighting mode is supplied, the low electric power lighting mode transitioning to a secondary protrusion maintaining process in which a high frequency alternating current having a frequency higher than the basic frequency in the regular lighting mode, and a low frequency alternating current having a frequency lower than the frequency of the high frequency alternating current is alternately supplied.
-
公开(公告)号：US20170242323A1
公开(公告)日：2017-08-24
申请号：US15588303
申请日：2017-05-05
发明人： Yuya Kurata
CPC分类号： G03B21/16 , G03B21/2026 , G03B21/2053 , G03B33/12 , H04N9/3144 , H04N9/3155
摘要： An image display apparatus including a light source; a light source control unit configured to control electric power to be supplied to the light source; a light source cooling unit configured to cool the light source; a cooling control unit configured to control the light source cooling unit; an image display device; an illumination optical system configured to introduce light from the light source to the image display device, and a projecting optical system configured to project light modulated by the image display device. When the light source control unit receives a turn-off command, the light source control unit first lowers electric power to be supplied to the light source to a predetermined electric power lower than normal electric power to be supplied when the lamp is on, and then blocks the supply of the electric power to the light source, thereby turning the light source off.
-
-
-
-
-
-
-
-
-
搜索结果
717 条记录 (耗时 0.028 秒)