Optical Device, in Particular Holographic Device

摘要

An optical device comprises a light source ( 301 ) for generating a radiation beam, a reflective diffractive structure ( 304 ) for reflecting and diffracting said radiation beam along an optical path (PP), imaging means ( 305 ) for imaging the radiation beam after it has been reflected and diffracted by said reflective diffractive structure, and a holographic beam splitter ( 303 ) between said reflective diffractive structure and said imaging means along said optical path. Such an optical device can be used for recording data into a holographic medium.