Prismatic perspective control device
US4046461A · kind A · utility
2Cited by
3References
2Claims
0Family size
Inventor
Key dates
| Filing date | Jul 23, 1975 |
| Grant date | Sep 6, 1977 |
| Priority date | — |
| Expiry date | Jul 23, 1995 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B17/12
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
This invention relates to a device useful in photographic perspective control. More particularly the invention utilizes movable optical prisms to effect perspective control in fixed lens cameras similar to the effect of the convention "view camera".
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.