JP2018037334A5 - - Google Patents
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- JP2018037334A5 JP2018037334A5 JP2016170812A JP2016170812A JP2018037334A5 JP 2018037334 A5 JP2018037334 A5 JP 2018037334A5 JP 2016170812 A JP2016170812 A JP 2016170812A JP 2016170812 A JP2016170812 A JP 2016170812A JP 2018037334 A5 JP2018037334 A5 JP 2018037334A5
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- JP
- Japan
- Prior art keywords
- power value
- power
- control
- discharge lamp
- setting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 230000000875 corresponding Effects 0.000 claims 2
Claims (5)
前記給電部に対して制御電力値に関する信号を出力する電力制御部と、を有し、
前記給電部は、前記制御電力値に応じた電力を前記放電ランプに供給する構成であり、
前記電力制御部は、
前記制御電力値を、前記放電ランプの定格電力よりも小さい第一の電力値に設定した後、前記第一の電力値よりも小さい第二の電力値を設定するというサイクルを繰り返す制御モードを有し、
前記制御モードの実行時に、前記放電ランプのランプ電圧が所定の電圧よりも大きい場合には、前記制御電力値を、前記第二の電力値に代えて、前記第二の電力値よりも大きく前記第一の電力値よりも小さい第三の電力値に設定し、
前記第二の電力値を維持する期間よりも、前記第三の電力値を維持する期間の方を長くすることを特徴とする放電ランプ点灯装置。 A power supply unit for supplying power to a discharge lamp in which a pair of electrodes are disposed opposite to each other in a discharge vessel in which a predetermined gas is sealed;
A power control unit that outputs a signal related to a control power value to the feeding unit;
The power supply unit is configured to supply power corresponding to the control power value to the discharge lamp,
The power control unit
After setting the control power value to a first power value smaller than the rated power of the discharge lamp, there is a control mode that repeats a cycle of setting a second power value smaller than the first power value And
When the lamp voltage of the discharge lamp is larger than a predetermined voltage at the time of execution of the control mode, the control power value is replaced with the second power value and is larger than the second power value. Set the third power value smaller than the first power value ,
A discharge lamp lighting device characterized in that a period for maintaining the third power value is made longer than a period for maintaining the second power value .
前記制御電力値を前記第一の電力値に設定した後、前記第三の電力値に設定する前に、前記第一の電力値から前記第三の電力値に向かって徐々に小さくなるように、前記制御電力値を設定し、又は、
前記制御電力値を前記第三の電力値に設定した後、前記第一の電力値に設定する前に、前記第三の電力値から前記第一の電力値に向かって徐々に大きくなるように、前記制御電力値を設定することを特徴とする請求項１に記載の放電ランプ点灯装置。 The power control unit
After setting the control power value to the first power value, before setting the control power value to the third power value, the first power value gradually decreases toward the third power value. , Setting the control power value, or
After setting the control power value to the third power value, before setting the control power value to the first power value, the third power value gradually increases toward the first power value. The discharge lamp lighting device according to claim 1, wherein the control power value is set.
前記給電部は、供給される直流電力を、前記パルス波の周期数及び前記制御電力値に応じた交流電力に変換して前記放電ランプに供給する構成であることを特徴とする請求項１〜４のいずれか一項に記載の放電ランプ点灯装置。
It further has a pulse generation unit that outputs a pulse wave to the feed unit,
The power supply unit is configured to convert supplied direct current power into alternating current power corresponding to the number of cycles of the pulse wave and the control power value, and supply the alternating current power to the discharge lamp. The discharge lamp lighting device according to any one of 4.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016170812A JP6548039B2 (en) | 2016-09-01 | 2016-09-01 | Discharge lamp lighting device |
| PCT/JP2017/029885 WO2018043199A1 (en) | 2016-09-01 | 2017-08-22 | Discharge lamp lighting device |
| CN201780051983.3A CN109644544B (en) | 2016-09-01 | 2017-08-22 | Discharge lamp lighting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016170812A JP6548039B2 (en) | 2016-09-01 | 2016-09-01 | Discharge lamp lighting device |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2018037334A JP2018037334A (en) | 2018-03-08 |
| JP2018037334A5 true JP2018037334A5 (en) | 2019-06-13 |
| JP6548039B2 JP6548039B2 (en) | 2019-07-24 |
Family
ID=61301840
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2016170812A Active JP6548039B2 (en) | 2016-09-01 | 2016-09-01 | Discharge lamp lighting device |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP6548039B2 (en) |
| CN (1) | CN109644544B (en) |
| WO (1) | WO2018043199A1 (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4470985B2 (en) * | 2007-09-28 | 2010-06-02 | セイコーエプソン株式会社 | Light source device and projector |
| JP4992994B2 (en) * | 2009-12-01 | 2012-08-08 | ウシオ電機株式会社 | High pressure discharge lamp lighting device and projector |
| JP5454168B2 (en) * | 2010-01-27 | 2014-03-26 | ウシオ電機株式会社 | Power supply device for discharge lamp |
| 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 |
| JP5895977B2 (en) * | 2014-07-10 | 2016-03-30 | ウシオ電機株式会社 | Discharge lamp lighting device |
-
2016
- 2016-09-01 JP JP2016170812A patent/JP6548039B2/en active Active
-
2017
- 2017-08-22 CN CN201780051983.3A patent/CN109644544B/en active Active
- 2017-08-22 WO PCT/JP2017/029885 patent/WO2018043199A1/en active Application Filing
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