Title:
PHOTOELECTRIC SMOKE DETECTOR
Document Type and Number:
Japanese Patent JPS5288081
Kind Code:
A
Abstract:
PURPOSE: In the construction of a dark room of a scattered light system, detection of smoke is reliably accomplished by cutting off the incidence of external disturbing light, reducing the reflection of internal disturbing light and facilitating the inflow of smoke.
Inventors:
KATAZUKI KUNIHARU
MORISUE KAZUNARI
MATSUMOTO SHIGERU
MORISUE KAZUNARI
MATSUMOTO SHIGERU
Application Number:
JP427576A
Publication Date:
July 22, 1977
Filing Date:
January 17, 1976
Export Citation:
Assignee:
MATSUSHITA ELECTRIC WORKS LTD
International Classes:
G01N21/53; (IPC1-7): G01N21/12; G01N21/26