Any substance arranged in a thin, open structure could be described as a lamella structure, for example the lace-like marrow found in the center of bones. In architecture, the term refers to a specific type of timber construction; originally developed by Fritz Zollinger in 1908, it was patented as the Zollinger-Bauweise in 1910 and was most commonly used between the World Wars when metal beams were cost prohibitive. The technique may be over a hundred years old, but the look has been adopted by contemporary design.
Originally, lamella was used for barrel-vaulted roofs. Today, designers are taking advantage of the open framework, sinuous lines and lightweight feel for all different types of designs."