JPS55106441A - Electronic flash device - Google Patents
Electronic flash deviceInfo
- Publication number
- JPS55106441A JPS55106441A JP1391579A JP1391579A JPS55106441A JP S55106441 A JPS55106441 A JP S55106441A JP 1391579 A JP1391579 A JP 1391579A JP 1391579 A JP1391579 A JP 1391579A JP S55106441 A JPS55106441 A JP S55106441A
- Authority
- JP
- Japan
- Prior art keywords
- light emitting
- emitting elements
- photographable
- film
- correct exposure
- 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
Abstract
PURPOSE: To enable the photographing always at correct exposure by lighting the light emitting elements which indicate the aperture values of lens corresponding to film sensitivities through utilization of the fixed relation between the charging voltage of a main discharging capacitor and photographable distance range.
CONSTITUTION: When a film sensitivity index 32 is matched to the character corresponding to the sensitivity of the film used of a film sensitivity display 28 by turning a rotary plate 23, aperture values appear respectively in the windows 30AW 30C of a disc 22. When in this state an aperture value setting index 33 is matched to the aperture value index which is utilized for automatic dimming by turning a rotary disc 24, the distance displays of the photographable range with correct exposure at said aperture values oppose to light emitting elements L1WL7 respectively. If the user waits in this state, the light emitting elements light up subsequently along with the charging progression of the main charging capacitor and therefore he knows photographable distances by seeing the distance displays 34 corresponding to the lighted light emitting elements. Thus, photographing of correct exposure is made possible at all times.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1391579A JPS55106441A (en) | 1979-02-09 | 1979-02-09 | Electronic flash device |
US06/046,454 US4258991A (en) | 1979-02-09 | 1979-06-07 | Electronic flash apparatus for a camera |
DE19792923645 DE2923645A1 (en) | 1979-02-09 | 1979-06-11 | ELECTRONIC FLASH DEVICE FOR A CAMERA |
GB7920341A GB2041551A (en) | 1979-02-09 | 1979-06-12 | Electronic flash apparatus for a camera |
CA329,600A CA1104201A (en) | 1979-02-09 | 1979-06-12 | Electronic flash apparatus for a camera |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1391579A JPS55106441A (en) | 1979-02-09 | 1979-02-09 | Electronic flash device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55106441A true JPS55106441A (en) | 1980-08-15 |
Family
ID=11846456
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1391579A Pending JPS55106441A (en) | 1979-02-09 | 1979-02-09 | Electronic flash device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55106441A (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS52102718A (en) * | 1976-02-25 | 1977-08-29 | Toshiba Shiyashin Youhin Kk | Electronic flash unit |
-
1979
- 1979-02-09 JP JP1391579A patent/JPS55106441A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS52102718A (en) * | 1976-02-25 | 1977-08-29 | Toshiba Shiyashin Youhin Kk | Electronic flash unit |
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