Patent ID: 6633385
Filing Date: 2003-10-14
Classification: G02B

Abstract:
An interferometric recording system for recording interference fringes in a photosensitive medium extending in a recording plane, the system comprising:light generating means for generating first and second coherent light beams; a guiding assembly for respectively guiding the first and second light beams along first and second light paths leading to a recording location on the photosensitive medium, the first and second light beams generating the interference fringes at the recording location, the guiding assembly comprising a delay mirror disposed in the first light path to reflect the first light beam, the delay mirror being interdependent with the photosensitive medium and forming a fixed angle &phgr; with the recording plane; and translating means for translating both the photosensitive medium and the delay mirror together with respect to the first and second light paths, thereby moving the recording location along the photosensitive medium and moving the interference fringes along the recording location, the angle &phgr; being selected to operationally couple said moving of the recording location and interference fringes.