Special effects carrier
US5563675A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 22, 1995 |
| Grant date | Oct 8, 1996 |
| Priority date | — |
| Expiry date | May 22, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B2217/248
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A special effects carrier for use in a photographic camera for taking portraits of individuals or groups. The wheel-shaped special effects carrier contains masks which produce various special effects. One of the masks included on the carrier produces no special effects so that the carrier can be used whether or not a special effect is desired. The carrier is located a fixed distance behind the objective element of the zoom lens so that the photographer is able to focus the camera without having to compensate for the changing focal length of the zoom lens. The carrier is connected to a CPU which drives a motor to rotate the carrier. An optical sensor reads bar codes on the carrier and relays information to the CPU thereby allowing the CPU to position the masks for use and freeing the photographer of that task.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.