APS camera for ensuring the cassett indicator is in the parked position
US6280103A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 22, 1999 |
| Grant date | Aug 28, 2001 |
| Priority date | — |
| Expiry date | Sep 22, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B2217/268
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The camera of this invention includes a parking mechanism that ensures a visual exposure indicator of an APS film cassette is in the parked position prior to removing the film cassette from the camera. The camera may include a rotatable wheel that rotates in order to move the film between a film cassette compartment, a film exposing area and a film spool. In a preferred embodiment, the parking mechanism includes a pin that engages the rotatable wheel after the film has been rewound into the film cassette and the wheel has been rotated sufficient distance to ensure that the visual exposure indicator moves to the parked position. When the pin engages the rotatable wheel, the pin prevents further rotation of the rotatable wheel. This indicates to the camera user that the visual exposure indicator is in the park position. The wheel may include a cam slot into which the pin travels as the film is being rewound into the film cassette. The cam slot may include an end that contacts the pin to prevent further rotation of the wheel when the visual exposure indicator is in the park position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.