(19)
(11) EP 0 113 461 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
01.10.1986 Bulletin 1986/40

(43) Date of publication A2:
18.07.1984 Bulletin 1984/29

(21) Application number: 83112561

(22) Date of filing: 14.12.1983
(84) Designated Contracting States:
CH DE FR GB LI NL

(30) Priority: 14.12.1982 JP 21891882

(71) Applicant: Nohmi Bosai Kogyo Co., Ltd.
 ()

(72) Inventor:
  • Morita, Toshikazu c/o NOHMI BOSAI KOGYO CO., LTD.
     ()

   


(54) Functional test means of light scattering type smoke detector


(57) The test means is equipped with an optical arrangement for smoke detection comprising a light emitting element for smoke detection and a photoelectric element for smoke detection located at such a position that it does not receive the light directly from the light emitting element. The opitcal arrangement for testing comprises a light emitting element for testing and a photoelectric element for testing which directly receives the light from the light emitting element for testing.






Search report