JPS5441576A - Method of controlling luminescent quantity of flash lamp - Google Patents
Method of controlling luminescent quantity of flash lampInfo
- Publication number
- JPS5441576A JPS5441576A JP10809477A JP10809477A JPS5441576A JP S5441576 A JPS5441576 A JP S5441576A JP 10809477 A JP10809477 A JP 10809477A JP 10809477 A JP10809477 A JP 10809477A JP S5441576 A JPS5441576 A JP S5441576A
- Authority
- JP
- Japan
- Prior art keywords
- flash lamp
- condenser
- rectifier
- comparator
- power source
- 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.)
- Granted
Links
Landscapes
- Discharge-Lamp Control Circuits And Pulse- Feed Circuits (AREA)
Abstract
PURPOSE:To control the luminescent quantity of a flash lamp without directly detecting the voltage of a high voltage portion for the flash lamp. CONSTITUTION:A secondary winding of a leakage transformer 2 for boosting, to which an AC power source 1 is input, is divided into N1 and N2, a flash lamp 4 is connected to N1 through a rectifier 3 and a condenser C1 while a condenser C2 is coupled with N2 through a rectifier 3', a resistance R2 and a comparator 6 are connected to the condenser C2, and a switching element 7 mounted to the primary side of the leakage transformer 2 is controlled by the output of the comparator 6 so that the charging voltage of the condenser C2 be maintained at a fixed level. A luminescent detector 9 for generating signals by detecting the luminescence of the flash lamp 4 is mounted, and the output is input to a transistor TR, thus discharging the electric charge of the condenser C2. In the figure, 5 is a trigger circuit and 8 a power source for a control circuit.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10809477A JPS6026278B2 (en) | 1977-09-08 | 1977-09-08 | Flash lamp light emission control method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10809477A JPS6026278B2 (en) | 1977-09-08 | 1977-09-08 | Flash lamp light emission control method |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5441576A true JPS5441576A (en) | 1979-04-02 |
JPS6026278B2 JPS6026278B2 (en) | 1985-06-22 |
Family
ID=14475708
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10809477A Expired JPS6026278B2 (en) | 1977-09-08 | 1977-09-08 | Flash lamp light emission control method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6026278B2 (en) |
-
1977
- 1977-09-08 JP JP10809477A patent/JPS6026278B2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS6026278B2 (en) | 1985-06-22 |
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