Title:
OPTICAL TRASMISSION DEVICE
Document Type and Number:
Japanese Patent JPS5413347
Kind Code:
A
Abstract:
PURPOSE: To provide an optical transmission device of high coupling efficiency and low branching efficiency by accomplishing the coupling operation of two optical transmission passages through an insert having a smaller refractive index than the passages.
Inventors:
HATSUTORI KATSUJI
SERIZAWA HIROMOTO
TANAKA TSUTOMU
TSUJIMOTO YOSHINOBU
FUKAI SHIYOUICHI
SERIZAWA HIROMOTO
TANAKA TSUTOMU
TSUJIMOTO YOSHINOBU
FUKAI SHIYOUICHI
Application Number:
JP7874577A
Publication Date:
January 31, 1979
Filing Date:
June 30, 1977
Export Citation:
Assignee:
MATSUSHITA ELECTRIC IND CO LTD
International Classes:
H04B10/29; G02B6/28; G02B27/10; H04B10/00; H04B10/2507; H04B10/27; (IPC1-7): G02B5/14; G02B27/10; H04B9/00