Power supply device of a camera
US4668070A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 4, 1986 |
| Grant date | May 26, 1987 |
| Priority date | — |
| Expiry date | Feb 4, 2006 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B7/26
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A camera containing at least one first battery and at least one second battery therein includes first means supplied with an electric power by the at least one first battery, thereby becoming operable, second means supplied with an electric power by the at least one second battery, thereby controlling the operation of the first means, and third means operated to render the at least one second battery removable from the camera, the power supply from the at least one second battery to the second means being impeded by the third means being operated, the third means impeding the power supply from the at least one first battery to the first means prior to the impediment of the power supply from the at least one second battery to the second means, in response to the operation of the third means.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.