F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
F21V1/00—Shades for light sources, i.e. lampshades for table, floor, wall or ceiling lamps
F21V1/02—Frames
F21V1/06—Frames foldable or collapsible
Landscapes
Engineering & Computer Science
(AREA)
General Engineering & Computer Science
(AREA)
Packaging Of Annular Or Rod-Shaped Articles, Wearing Apparel, Cassettes, Or The Like
(AREA)