The LEAR Crystal Barrel Detector

The features of the Crystal Barrel Detector which is in preparation for LEAR at CERN, are discussed. The physics aims include qq‐ and exotics‐spectroscopy and a detailed investigation of yet unknown pp‐anihilation channels. An eventual later use on the PSI‐B‐Meson‐Factory is discussed. The paper finishes with a description of the present status of the project.