Hybrid optical elements for dual-focus pickup | Zendy

DerChin Su | Zendy; Jen-Tsorng Chang | Zendy; Yang-Tung Huang | Zendy

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<title>Hybrid optical elements for dual-focus pickup</title>

Author(s) -

DerChin Su,

Jen-Tsorng Chang,

Yang-Tung Huang

Publication year - 1997

Publication title -

proceedings of spie, the international society for optical engineering/proceedings of spie

Language(s) - English

Resource type - Conference proceedings

SCImago Journal Rank - 0.192

H-Index - 176

eISSN - 1996-756X

pISSN - 0277-786X

DOI - 10.1117/12.279451

Subject(s) - focus (optics) , holography , optical disc , pickup , lens (geology) , dual (grammatical number) , fabrication , computer science , optics , physics , artificial intelligence , image (mathematics) , art , medicine , alternative medicine , literature , pathology

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.

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