Hybrid optical elements for dual-focus pickup

Der-Chin Su; Jen-Tsorng Chang; Yang-Tung Huang

doi:10.1117/12.279451

24 October 1997 Hybrid optical elements for dual-focus pickup

Der-Chin Su, Jen-Tsorng Chang, Yang-Tung Huang

Proceedings Volume 3159, Algorithms, Devices, and Systems for Optical Information Processing; (1997) https://doi.org/10.1117/12.279451
Event: Optical Science, Engineering and Instrumentation '97, 1997, San Diego, CA, United States

Abstract

Two hybrid optical elements re presented for dual-focus pickup in the digital versatile disk (DVD) system. One is a hybrid dual-focus lens and the other is a holographic regional mirror. The optical head consisting of these two hybrid optical elements can read the information recorded on two layers of DVD simultaneously. Its specifications are described. The fabrication parameters of these two hybrid optical elements are derived.

Citation Download Citation

Der-Chin Su, Jen-Tsorng Chang, and Yang-Tung Huang "Hybrid optical elements for dual-focus pickup", Proc. SPIE 3159, Algorithms, Devices, and Systems for Optical Information Processing, (24 October 1997); https://doi.org/10.1117/12.279451

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