OPTICAL SYSTEM USING REFRACTIVE INDEX DISTRIBUTION LENS

OPTICAL SYSTEM USING REFRACTIVE INDEX DISTRIBUTION LENS

PROBLEM TO BE SOLVED: To increase a numerical aperture by using a specified refractive index distribution lens and a homogeneous plane/convex lens. SOLUTION: The system is constituted by combining the refractive index distribution lens 1 with refractive index distribution in a radial direction and t...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
1. Verfasser: KIKKO SHIGEO
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 increase a numerical aperture by using a specified refractive index distribution lens and a homogeneous plane/convex lens. SOLUTION: The system is constituted by combining the refractive index distribution lens 1 with refractive index distribution in a radial direction and the homogeneous plane/convex lens 2 with uniform refractive index. As for the lens 1, the lens face is flat or convexly spherical, and in the case the refractive index distribution is controlled to be n(r) =n0 . 1-(g.r) +h4 (g.r) + h6 (g.r) +h8 (g.r) + ...}, 1.45