PURPOSE: A fire sensing unit is provided to detect the maximum scattered light from the same amount of smoke using the incident light. CONSTITUTION: A base forms a smoke detection chamber and comprises an auxiliary wall blocking the entering of the light into the smoke detection chamber through the main wall of Y shape forming a smoke inflow path and a main wall central opening. A light emitting unit(100) offers the incident light to the smoke detection chamber.
申请公布号
KR20110005423(A)
申请公布日期
2011.01.18
申请号
KR20090062959
申请日期
2009.07.10
申请人
HELP TECH CO., LTD.;SON, YOUNG HWAN;KIM, DUCK JUNG