JPS6482492A - Lighting fixture - Google Patents

Lighting fixture

Info

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
Application number
JP24120987A
Other languages
Japanese (ja)
Inventor
Shiro Otake
Masataka Ozawa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP24120987A priority Critical patent/JPS6482492A/en
Publication of JPS6482492A publication Critical patent/JPS6482492A/en
Pending legal-status Critical Current

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.
JP24120987A 1987-09-25 1987-09-25 Lighting fixture Pending JPS6482492A (en)

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)

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