Holographic elements for an optical recording system

Dynamic information storage or retrieval – Specific detail of information handling portion of system – Radiation beam modification of or by storage medium

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369 4412, 369 4423, 359 15, G02B 530

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active

054503787

ABSTRACT:
An optical recording, erasing and playback system. One or more functions in a conventional optical disc system are performed by one or more holographic optical elements (HOE). Exemplary of the functions performed by the HOE are collimation, beam shaping, combining of beams, and focusing. According to preferred embodiments, volume HOEs are utilized.

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