JPS6482492A - Lighting fixture - Google Patents
Lighting fixtureInfo
- Publication number
- JPS6482492A JPS6482492A JP24120987A JP24120987A JPS6482492A JP S6482492 A JPS6482492 A JP S6482492A JP 24120987 A JP24120987 A JP 24120987A JP 24120987 A JP24120987 A JP 24120987A JP S6482492 A JPS6482492 A JP S6482492A
- Authority
- JP
- Japan
- Prior art keywords
- starting time
- time
- preheating
- measuring section
- starting
- 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.)
- Pending
Links
Landscapes
- Circuit Arrangements For Discharge Lamps (AREA)
Abstract
PURPOSE:To set the adequate starting time on the viewpoint of the psychological effect by controlling the starting time of a lighting circuit based on the signal from a light measuring section and shortening the starting time when the light quantity of the ambient light is small. CONSTITUTION:A starting time control section 3 determines the preheating time tau in a preheating circuit which is part of a lighting circuit 4. When a starting switch 1 is turned on, the preheating time tau is set in the starting time control section 3 based on the signal from a light measuring section 2, and a fluorescent lamp 5 is started after a filament is preheated for the time tau. In case of a table lamp, for example, the illuminance on the working face to be lit mainly affects the length of the optimum starting time, thus the light measuring section 2 may be arranged at the position where the illuminance of the working face is to be measured. The adequate starting time can be thereby set on the viewpoint of the psychological effect.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP24120987A JPS6482492A (en) | 1987-09-25 | 1987-09-25 | Lighting fixture |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP24120987A JPS6482492A (en) | 1987-09-25 | 1987-09-25 | Lighting fixture |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6482492A true JPS6482492A (en) | 1989-03-28 |
Family
ID=17070822
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP24120987A Pending JPS6482492A (en) | 1987-09-25 | 1987-09-25 | Lighting fixture |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6482492A (en) |
-
1987
- 1987-09-25 JP JP24120987A patent/JPS6482492A/en active Pending
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