DIFFRACTION GRATING INTEGRATED POLARIZATION CONVERSION ELEMENT

DIFFRACTION GRATING INTEGRATED POLARIZATION CONVERSION ELEMENT

PROBLEM TO BE SOLVED: To provide a polarization conversion element which makes possible the reduction of a manufacturing cost of optical components for an optical pickup and simultaneously the improvement in performance due to the composite of the element, and a method for manufacturing the same. SO...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: SAIKAWA MASAKI, SAITO TAKAO, TANAKA NOBUKI, NISHI TAKUYA, NAKADA TATSUYA, SATO YOSHITAKA, TAKAHASHI TAKASHI
Format: Patent
Sprache:eng
Schlagworte:
INFORMATION STORAGE
INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
PHYSICS
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:PROBLEM TO BE SOLVED: To provide a polarization conversion element which makes possible the reduction of a manufacturing cost of optical components for an optical pickup and simultaneously the improvement in performance due to the composite of the element, and a method for manufacturing the same. SOLUTION: The diffraction grating integrated polarization conversion element is manufactured by integrally forming a polarization conversion element, and a diffraction grating of the same resin plate. For example, the polarization conversion element composed of a resin is welded with the diffraction grating composed of the same resin as the above resin to form the diffraction grating integrally with the polarization conversion element, and thereby the diffraction grating integrated polarization conversion element is manufactured. COPYRIGHT: (C)2009,JPO&INPIT