Title:
【発明の名称】全反射導光体
Document Type and Number:
Japanese Patent JPH11513812
Kind Code:
A
Abstract:
A hollow, cylindrical light conduit for transporting light generally longitudinally therethrough and distributing light therealong includes a cylindrical wall member of a transparent material. The wall member has an inner cylindrical smooth surface and an outer cylindrical structured surface having an array of isosceles prisms arranged side by side thereon. The faces of adjacent prisms extend longitudinally along the cylindrical wall member and are aligned at the same desired prism angle relative to one another. The light transporting performance of the light conduit, achieved by total internal reflection, and the light distributing performance of the light conduit, specifically relative to radially aligned, high incident angle longitudinal light rays in planes parallel or near parallel to the prisms, is optimized as a function of the desired prism angle between the faces of adjacent prisms.
Inventors:
Dreyer, John F.
Application Number:
JP51596697A
Publication Date:
November 24, 1999
Filing Date:
October 17, 1996
Export Citation:
Assignee:
Minnesota Mining and Manufacturing Company
International Classes:
F21S2/00; F21V8/00; G02B6/032; G02B6/00; (IPC1-7): G02B6/00; F21S1/00; F21V8/00
Attorney, Agent or Firm:
Takashi Ishida (4 others)