JPH0225132Y2 - - Google Patents
Info
- Publication number
- JPH0225132Y2 JPH0225132Y2 JP12180582U JP12180582U JPH0225132Y2 JP H0225132 Y2 JPH0225132 Y2 JP H0225132Y2 JP 12180582 U JP12180582 U JP 12180582U JP 12180582 U JP12180582 U JP 12180582U JP H0225132 Y2 JPH0225132 Y2 JP H0225132Y2
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- lighting
- voltage
- triangular wave
- wave signal
- 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.)
- Expired
Links
- 230000010355 oscillation Effects 0.000 claims description 11
- 230000007423 decrease Effects 0.000 description 6
- 238000001514 detection method Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- 238000005286 illumination Methods 0.000 description 6
- 239000003990 capacitor Substances 0.000 description 5
- 230000010354 integration Effects 0.000 description 2
- 230000000087 stabilizing effect Effects 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
Landscapes
- Details Of Measuring Devices (AREA)
- Arrangements Of Lighting Devices For Vehicle Interiors, Mounting And Supporting Thereof, Circuits Therefore (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12180582U JPS5925421U (ja) | 1982-08-11 | 1982-08-11 | 計器照明装置 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12180582U JPS5925421U (ja) | 1982-08-11 | 1982-08-11 | 計器照明装置 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5925421U JPS5925421U (ja) | 1984-02-17 |
| JPH0225132Y2 true JPH0225132Y2 (pm) | 1990-07-11 |
Family
ID=30278644
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12180582U Granted JPS5925421U (ja) | 1982-08-11 | 1982-08-11 | 計器照明装置 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5925421U (pm) |
-
1982
- 1982-08-11 JP JP12180582U patent/JPS5925421U/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5925421U (ja) | 1984-02-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4514727A (en) | Automatic brightness control apparatus | |
| US4388558A (en) | Display intensity control apparatus | |
| EP0340485B1 (en) | Control system for head-up display for automotive vehicles | |
| US6670781B2 (en) | Cold cathode fluorescent lamp low dimming antiflicker control circuit | |
| JPH0225132Y2 (pm) | ||
| JP2004281922A (ja) | 発光素子の電流制御装置 | |
| US4772805A (en) | Lamp illumination adjusting apparatus | |
| JPH10111487A (ja) | Ｌｃｄバックライト駆動回路 | |
| JPS5818235Y2 (ja) | 調光装置 | |
| JPH04230734A (ja) | 蛍光ランプ制御装置 | |
| JP3344588B2 (ja) | 表示装置 | |
| JPS6262617A (ja) | 制御回路 | |
| JPH0921998A (ja) | Ｌｃｄのバックライト調光装置 | |
| US6768268B2 (en) | Dimmer for vehicle use | |
| JPH0626952Y2 (ja) | 蛍光表示管のフイラメント用電源回路 | |
| JPH03118514A (ja) | 液晶表示バックライト用冷陰極管の電源装置 | |
| JP3448904B2 (ja) | 調光用点灯装置 | |
| JPH0740517B2 (ja) | 電球駆動回路 | |
| KR960001826A (ko) | 백라이트 밝기 자동 조절 장치 | |
| JPH0317351Y2 (pm) | ||
| JPH0122092Y2 (pm) | ||
| JP3235732B2 (ja) | 表示装置 | |
| JPS5856159B2 (ja) | 表示回路 | |
| JPH0218755Y2 (pm) | ||
| JPH0338841Y2 (pm) |