Patent · US Expired

Photo flash device

US4106080A · kind A · utility

4Cited by

9References

14Claims

0Family size

Assignee

The Braun Corporation · DE

Inventors

Hans Karey · Frankfurt, DE
Robert Oberheim · Liederbach, DE
Hans-Eberhard Heintke · Wächtersbach, DE

Key dates

Filing date	Sep 25, 1975
Grant date	Aug 8, 1978
Priority date	—
Expiry date	Sep 25, 1995

Classification

Technology area (CPC G)Physics
CPC primaryG03B2215/0528
WIPO fieldOptics
WIPO sectorInstruments

Abstract

A flash device has a housing, a cylindrical reflector unit mounted in the housing for turning movement about its longitudinal axis, and a flash lamp positioned in the housing so that flashes emitted by the lamp are reflected by the reflector unit when the latter is turned to respective different positions.

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