GB1303023A - - Google Patents
Info
- Publication number
- GB1303023A GB1303023A GB2645371A GB2645371A GB1303023A GB 1303023 A GB1303023 A GB 1303023A GB 2645371 A GB2645371 A GB 2645371A GB 2645371 A GB2645371 A GB 2645371A GB 1303023 A GB1303023 A GB 1303023A
- Authority
- GB
- United Kingdom
- Prior art keywords
- circuit
- shutter
- camera
- contacts
- april
- 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.)
- Expired
Links
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B3/00—Focusing arrangements of general interest for cameras, projectors or printers
- G03B3/02—Focusing arrangements of general interest for cameras, projectors or printers moving lens along baseboard
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B9/00—Exposure-making shutters; Diaphragms
- G03B9/58—Means for varying duration of "open" period of shutter
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Exposure Control For Cameras (AREA)
- Structure And Mechanism Of Cameras (AREA)
- Shutters For Cameras (AREA)
Abstract
1303023 Photographic cameras HATTORI TOKEITEN KK 19 April 1971 [10 April 1970] 26453/71 Heading G2A A camera has an exchangeable lens unit 5 containing a shutter 13 which is electrically operated, a first part of the electrical circuit being provided in the lens unit, and a second part of the circuit including a timing circuit being provided in the camera, first and second electrical contacts 11, 9 connecting the two parts of the circuit. The lens is secured to the camera by a bayonet joint. The first and second electrical contacts have rounded surfaces of different sizes, contacts 9 being spring urged into contact with contacts 11. The shutter has a switch opened upon opening of the shutter to initiate shutter timing by the second part of the circuit, and a flash sychronizing switch.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3012570A JPS5436854B1 (en) | 1970-04-10 | 1970-04-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1303023A true GB1303023A (en) | 1973-01-17 |
Family
ID=12295041
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2645371A Expired GB1303023A (en) | 1970-04-10 | 1971-04-19 |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JPS5436854B1 (en) |
| DE (1) | DE2117366A1 (en) |
| GB (1) | GB1303023A (en) |
-
1970
- 1970-04-10 JP JP3012570A patent/JPS5436854B1/ja active Pending
-
1971
- 1971-04-08 DE DE19712117366 patent/DE2117366A1/en active Pending
- 1971-04-19 GB GB2645371A patent/GB1303023A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE2117366A1 (en) | 1971-11-25 |
| JPS5436854B1 (en) | 1979-11-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |