JP2015022878A - 点灯装置 - Google Patents
点灯装置 Download PDFInfo
- Publication number
- JP2015022878A JP2015022878A JP2013149641A JP2013149641A JP2015022878A JP 2015022878 A JP2015022878 A JP 2015022878A JP 2013149641 A JP2013149641 A JP 2013149641A JP 2013149641 A JP2013149641 A JP 2013149641A JP 2015022878 A JP2015022878 A JP 2015022878A
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- Prior art keywords
- lighting device
- power source
- led
- power supply
- current
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- 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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- 230000007423 decrease Effects 0.000 claims description 13
- 230000002159 abnormal effect Effects 0.000 claims description 5
- 238000005286 illumination Methods 0.000 abstract description 3
- 230000005856 abnormality Effects 0.000 abstract 2
- 238000001514 detection method Methods 0.000 description 7
- 230000004907 flux Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 230000003247 decreasing effect Effects 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 229910052987 metal hydride Inorganic materials 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 1
- -1 nickel metal hydride Chemical class 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
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Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
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- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
【解決手段】点灯装置Aは、商用電源1が正常に供給される状態では商用電源1により蓄電池4を充電する充電回路3と、商用電源1の異常時に蓄電池4からの電源供給によりLED71を点灯させる点灯回路と、周囲温度が上昇するに従ってLED71に流れる電流が減少するのを抑制するように電気的特性が変化する限流素子5とを備える。
【選択図】図1
Description
3 充電回路
4 蓄電池(非常用電源)
5 限流素子(電流調整部)
71 LED(発光素子)
A 点灯装置
Claims (1)
- 外部電源が正常に供給される状態では前記外部電源により非常用電源を充電する充電回路と、
前記外部電源の異常時に前記非常用電源からの電源供給により発光素子を点灯させる点灯回路と、
周囲温度が上昇するに従って前記発光素子に流れる電流が減少するのを抑制するように電気的特性が変化する電流調整部とを備えていることを特徴とする点灯装置。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2013149641A JP2015022878A (ja) | 2013-07-18 | 2013-07-18 | 点灯装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2013149641A JP2015022878A (ja) | 2013-07-18 | 2013-07-18 | 点灯装置 |
Publications (1)
Publication Number | Publication Date |
---|---|
JP2015022878A true JP2015022878A (ja) | 2015-02-02 |
Family
ID=52487161
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2013149641A Pending JP2015022878A (ja) | 2013-07-18 | 2013-07-18 | 点灯装置 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2015022878A (ja) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004330819A (ja) * | 2003-05-01 | 2004-11-25 | Koito Mfg Co Ltd | 車両用灯具 |
JP2006210238A (ja) * | 2005-01-31 | 2006-08-10 | Toshiba Lighting & Technology Corp | 非常用照明器具 |
-
2013
- 2013-07-18 JP JP2013149641A patent/JP2015022878A/ja active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004330819A (ja) * | 2003-05-01 | 2004-11-25 | Koito Mfg Co Ltd | 車両用灯具 |
JP2006210238A (ja) * | 2005-01-31 | 2006-08-10 | Toshiba Lighting & Technology Corp | 非常用照明器具 |
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