PARALLEL LIGHT GENERATION DEVICE

A lens (10) has an incidence surface (11) having a cylindrical shape and forming a concave shape, and an emitting surface (12) forming a convex shape with respect to an optical axis (10a) . A light source (20) has a large divergence angle in a vertical direction, and a divergence angle in a horizont...

Full description

Saved in:
Bibliographic Details
Main Authors HIROSAWA, Kenichi, YANAGISAWA, Takayuki, SAKAI, Kohei, TAKADA, Yukari, SHOHDA, Fumio
Format Patent
LanguageEnglish
French
German
Published 23.12.2020
Subjects
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
PHYSICS
Online AccessGet full text

Cover

More Information
Summary:A lens (10) has an incidence surface (11) having a cylindrical shape and forming a concave shape, and an emitting surface (12) forming a convex shape with respect to an optical axis (10a) . A light source (20) has a large divergence angle in a vertical direction, and a divergence angle in a horizontal direction which is smaller than that in the vertical direction. The light source (20) is located at a position of focal length of the lens (10) in the vertical direction on a side of the incidence surface. The horizontal direction of the light source (20) is aligned with a curvature direction of the cylindrical shape of the lens (10).
Bibliography:Application Number: EP20160900479