Tesaurus d'Art i Arquitectura Getty Institute 0000-00-00 2024-01-24 15:40:44 en hyalotype300404046hyalotype The first photographic positive transparency process utilizing albumen-coated glass plates for making lantern slides. Introduced by Frederick and William Langenheim of Philadelphia in 1849. The process was also used for making large glass transparencies hung in windows as decorative works. hyalotype (traducció pendent) hyalotype (traducció pendent) 2026-03-30 20:40:06