Umbrella used as light source - can change configuration by rotating ribs in sleeves sliding on axle

摘要

The umbrella can be used as a light source for photography or filming or as an ordinary umbrella. Its shape can be varied to make it square, rectangular, hexagonal or octagonal. Its ribs (0-6) supporting the cover (20), radiate round an axle (7) with their extremities fixed to a sleeve (11). A corresponding series of rods (10) are articulated on a sleeve (8) that can slide freely on the axle and are joined to the ribs. The ribs and the rods can move round the sleeves to change their configuration and two ribs can be held together by a joining piece.