DEVICES AND METHODS FOR DATA STORAGE Russian patent published in 2012 - IPC G11B7/65 G02B5/32 

FIELD: information technologies.

SUBSTANCE: storage device comprises a plastic substrate, having multiple volumes arranged in the form of paths along multiple vertically packaged layers. The substrate demonstrates a non-linear optically sensitive functional characteristic, which is a threshold functional characteristic. The device comprises multiple micro-holograms, every of which is contained in the appropriate one of the volumes. Availability or absence of a microhologram in each of volumes characterises a stored data area.

EFFECT: expansion of allowance to misalignment of recoding optics.

36 cl, 40 dwg