JPS561021A - Film feed checking display device - Google Patents
Film feed checking display deviceInfo
- Publication number
- JPS561021A JPS561021A JP7549879A JP7549879A JPS561021A JP S561021 A JPS561021 A JP S561021A JP 7549879 A JP7549879 A JP 7549879A JP 7549879 A JP7549879 A JP 7549879A JP S561021 A JPS561021 A JP S561021A
- Authority
- JP
- Japan
- Prior art keywords
- film
- display device
- film feed
- perforations
- goes
- 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
- Indication In Cameras, And Counting Of Exposures (AREA)
Abstract
PURPOSE: To enable the sure checking and displaying of film feeding by letting an electric charging circuit and lighting circuit be flickered by the contact member which goes in and out from the perforations of the film.
CONSTITUTION: If a film F is held stopped and the protruding part 10 of a travelling contact member 9 is held fitted onto the perforation P of the film F, the switch S1 of an electric charging circuit 7 is open and a light emitting diode 3 is off. Now, when the film F is wound, the protruding part 10 goes into and out from the hole and land of the perforations P and therefore the switches S1 and S2 repeat flickering, hence the light emitting diode 3 flickers, thereby displaying that the film is being surely fed.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7549879A JPS561021A (en) | 1979-06-15 | 1979-06-15 | Film feed checking display device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7549879A JPS561021A (en) | 1979-06-15 | 1979-06-15 | Film feed checking display device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS561021A true JPS561021A (en) | 1981-01-08 |
Family
ID=13577983
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7549879A Pending JPS561021A (en) | 1979-06-15 | 1979-06-15 | Film feed checking display device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS561021A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5835523A (en) * | 1981-08-27 | 1983-03-02 | Canon Inc | Display device for film transportation |
JPS58105536U (en) * | 1982-01-13 | 1983-07-18 | 旭光学工業株式会社 | Camera film advance detection device |
-
1979
- 1979-06-15 JP JP7549879A patent/JPS561021A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5835523A (en) * | 1981-08-27 | 1983-03-02 | Canon Inc | Display device for film transportation |
JPS6258490B2 (en) * | 1981-08-27 | 1987-12-07 | Canon Kk | |
JPS58105536U (en) * | 1982-01-13 | 1983-07-18 | 旭光学工業株式会社 | Camera film advance detection device |
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