. "Lenses, usually in the form of blown glass globes, which when filled with water and suspended before a light, act as a lens refractor to condense or concentrate light upon a surface."@en . "lens, water"@en . "1990-05-17T00:00:00"^^ . "water lens"@en . "2017-03-30T21:00:20"^^ . "water lenses"@en . "lenses, water"@en . . . "300181056" .