JP2003295320A5 - - Google Patents
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- JP2003295320A5 JP2003295320A5 JP2002102016A JP2002102016A JP2003295320A5 JP 2003295320 A5 JP2003295320 A5 JP 2003295320A5 JP 2002102016 A JP2002102016 A JP 2002102016A JP 2002102016 A JP2002102016 A JP 2002102016A JP 2003295320 A5 JP2003295320 A5 JP 2003295320A5
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- lamp
- mode
- power
- rotational speed
- power mode
- Prior art date
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Claims (3)
前記低電力モードが選択された状態での始動時では、始動から所定時間は前記ランプに前記所定電力を供給するようにしたことを特徴とする画像表示装置。A normal power for supplying a predetermined power to the discharge lamp, comprising: a discharge lamp for a light source; a display element for intensity-modulating light from the lamp; and an optical system for enlarging and projecting the light modulated by the display element. In an image display device configured to operate in any of a mode and a low power mode in which the lamp is turned on by supplying power lower than the normal power mode,
The image display device in at the start of a state where the low power mode is selected, predetermined from the starting time, characterized in that so as to provide a pre-Symbol predetermined power to the lamp.
前記放電ランプを冷却するための冷却ファンを備え、
該冷却ファンは、前記通常電力モ−ドの場合は第１の回転数で動作し、前記低電力モ−ドの場合は前記第１の回転数よりも低い第２の回転数で動作するように制御され、
前記低電力モードが選択された状態での始動時では、始動から所定時間は前記ランプに前記所定電力を供給するように制御し、
前記冷却ファンは始動時から前記第２の回転数で動作するようにしたことを特徴とする画像表示装置。A normal power for supplying a predetermined power to the discharge lamp, comprising: a discharge lamp for a light source; a display element for intensity-modulating light from the lamp; and an optical system for enlarging and projecting the light modulated by the display element. In an image display device configured to operate in any of a mode and a low power mode in which the lamp is turned on by supplying power lower than the normal power mode,
A cooling fan for cooling the discharge lamp,
The cooling fan operates at a first rotational speed in the normal power mode, and operates at a second rotational speed lower than the first rotational speed in the low power mode. Controlled by
At the time of start-up with the low power mode selected, control is performed so that the predetermined power is supplied to the lamp for a predetermined time from the start,
The image display device according to claim 1, wherein the cooling fan operates at the second rotational speed from the start.
始動からの経過時間を計測するタイマを設け、前記制御手段は、前記タイマの始動からの経過時間を所定の時間間隔でチェックし、低電力モードが選択されている状態からの始動の場合のみ、前記タイマが計測する始動からの経過時間が予め定めた所定時間となるまでは、前記ランプに略定格電力を供給するように前記ランプ点灯モード切替手段を制御し、前記ランプの温度が所定の温度となるようにしたことを特徴とする画像表示装置。A discharge lamp for a light source, an optical system that performs light intensity modulation that changes the light from the lamp to light and shade for each pixel of a display element, and displays the enlarged light, and a lighting mode of the lamp, at approximately rated power, Switching between a lamp lighting power variable type ballast having a normal power mode for lighting a lamp and a low power mode for lighting the lamp at a lower power than the normal power mode, and a lamp lighting mode of the lamp lighting power variable type ballast A lamp lighting mode switching means, at least a cooling fan for cooling the lamp, and a first rotation number that has a large cooling effect or a second rotation that has a cooling effect smaller than the first rotation number. The cooling fan driving means for driving the cooling fan to be equal to the number, and the cooling fan driving means is instructed to switch the rotation speed of the cooling fan. Fan speed switching means, a lamp lighting mode switching switch for setting a lamp lighting mode, and the normal power mode is set as the lamp lighting mode by input of the lamp lighting mode switching switch. If so, the lamp lighting mode switching means is controlled so as to supply substantially rated power to the lamp, and the fan speed switching means is controlled so that the rotational speed of the fan becomes the first rotational speed, When the low power mode is set, the lamp lighting mode switching means is controlled to supply the low power to the lamp, and the fan speed is set so that the rotational speed of the fan becomes the second rotational speed. In an image display device comprising control means for controlling switching means,
A timer for measuring the elapsed time from the start is provided, and the control means checks the elapsed time from the start of the timer at a predetermined time interval, and only when starting from a state where the low power mode is selected. The lamp lighting mode switching means is controlled to supply substantially rated power to the lamp until the elapsed time from the start measured by the timer reaches a predetermined time, and the lamp temperature is set to a predetermined temperature. An image display device characterized by that.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002102016A JP2003295320A (en) | 2002-04-04 | 2002-04-04 | Image display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002102016A JP2003295320A (en) | 2002-04-04 | 2002-04-04 | Image display device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2003295320A JP2003295320A (en) | 2003-10-15 |
| JP2003295320A5 true JP2003295320A5 (en) | 2005-08-25 |
Family
ID=29242065
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2002102016A Pending JP2003295320A (en) | 2002-04-04 | 2002-04-04 | Image display device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2003295320A (en) |
Families Citing this family (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004207018A (en) | 2002-12-25 | 2004-07-22 | Seiko Epson Corp | Light source drive circuit, projector, lighting control method of light source, and computer-readable program for executing it |
| US7252385B2 (en) * | 2004-05-11 | 2007-08-07 | Infocus Corporation | Projection LED cooling |
| JP2006091588A (en) * | 2004-09-24 | 2006-04-06 | Sanyo Electric Co Ltd | Projection type image display apparatus |
| EP1836883B1 (en) * | 2005-01-03 | 2011-03-02 | Philips Intellectual Property & Standards GmbH | A method and an operation controller for operation of a mercury vapour discharge lamp in an image rendering system |
| JP4945994B2 (en) * | 2005-10-06 | 2012-06-06 | セイコーエプソン株式会社 | Projector and control method thereof |
| WO2008020366A2 (en) * | 2006-08-15 | 2008-02-21 | Philips Intellectual Property & Standards Gmbh | Method of driving a discharge lamp, driving arrangement, an projector system |
| JP4883045B2 (en) * | 2008-04-28 | 2012-02-22 | ソニー株式会社 | Projection display |
| WO2011108088A1 (en) * | 2010-03-03 | 2011-09-09 | Ｎｅｃディスプレイソリューションズ株式会社 | Projector and method for controlling same |
| JP5561804B2 (en) * | 2010-08-05 | 2014-07-30 | Ｎｅｃディスプレイソリューションズ株式会社 | Image display device and light source cooling method |
| WO2012023169A1 (en) * | 2010-08-16 | 2012-02-23 | Ｎｅｃディスプレイソリューションズ株式会社 | Image display device and light source cooling method |
| WO2012025986A1 (en) * | 2010-08-24 | 2012-03-01 | Ｎｅｃディスプレイソリューションズ株式会社 | Image display device and light source cooling method |
| JP5740989B2 (en) * | 2011-01-11 | 2015-07-01 | セイコーエプソン株式会社 | projector |
| JP5786335B2 (en) * | 2011-01-11 | 2015-09-30 | セイコーエプソン株式会社 | projector |
| JP5845803B2 (en) * | 2011-10-21 | 2016-01-20 | セイコーエプソン株式会社 | projector |
| WO2013105267A1 (en) * | 2012-01-13 | 2013-07-18 | Ｎｅｃディスプレイソリューションズ株式会社 | Projection type display device and method for controlling operation of projection type display device |
| TWI609247B (en) * | 2013-04-09 | 2017-12-21 | Orc Manufacturing Co Ltd | Light source apparatus and exposure apparatus including the light source apparatus |
| JP6303704B2 (en) | 2013-10-11 | 2018-04-04 | セイコーエプソン株式会社 | Discharge lamp driving device, light source device, projector, and discharge lamp driving method |
| JP6365061B2 (en) | 2013-10-11 | 2018-08-01 | セイコーエプソン株式会社 | Discharge lamp driving device, light source device, projector, and discharge lamp driving method |
| WO2017126042A1 (en) * | 2016-01-20 | 2017-07-27 | Ｎｅｃディスプレイソリューションズ株式会社 | Projector and electric power switching method for light source |
| US10222684B2 (en) | 2017-02-23 | 2019-03-05 | Seiko Epson Corporation | Projector and control method for projector |
-
2002
- 2002-04-04 JP JP2002102016A patent/JP2003295320A/en active Pending
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