Patent · US Expired

Device for data recording at photographic cameras

US4493543A · kind A · utility

2Cited by

4References

3Claims

0Family size

Assignee

Victor Hasselblad Aktiebolag · SE

Inventors

Jan A. Lundberg · Torslanda, SE
Göran Wallgren · Onsala, SE
Mats Martinsson · Gothenburg, SE

Key dates

Filing date	Mar 4, 1983
Grant date	Jan 15, 1985
Priority date	—
Expiry date	Mar 4, 2003

Classification

Technology area (CPC G)Physics
CPC primaryG03B2217/243
WIPO fieldOptics
WIPO sectorInstruments

Abstract

The invention relates to a device for data recording at photographic cameras equipped with a separate film magazine. The device according to the invention is characterized in that it is designed as a separate unit (3), which can be attached detachably on the film magazine (1), and which comprises a microprocessor (8) for controlling predetermined information and a necessary power source (9) as well as optical means (5,13) for information transfer to the emulsion side of the film (1) while the film is being advanced.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.