EP 2342701 A1 20110713 - LIGHT RECEIVER DEVICE HAVING A SHIELDING DEVICE EXTENDING ON A BACK SIDE OF A SUBSTRATE
Title (en)
LIGHT RECEIVER DEVICE HAVING A SHIELDING DEVICE EXTENDING ON A BACK SIDE OF A SUBSTRATE
Title (de)
LICHTEMPFANGSEINRICHTUNG MIT EINER SICH AUF EINE SUBSTRATRÜCKSEITE ERSTRECKENDEN ABSCHIRMVORRICHTUNG
Title (fr)
DISPOSITIF RÉCEPTEUR DE LUMIÈRE MUNI D'UN DISPOSITIF DE BLINDAGE QUI S'ÉTEND SUR LE CÔTÉ ARRIÈRE D'UN SUBSTRAT
Publication
Application
Priority
EP 2008064657 W 20081029
Abstract (en)
[origin: WO2010048991A1] The invention relates to a light receiver device (140), particularly provided for a smoke detector (100). The light receiver device (140) comprises a flat substrate (110, 210, 310), a light receiver (142) mounted on a front side of the substrate (110, 210, 310), and a shielding device (150) present on at least a back side of the substrate (110, 210, 310) opposite the front side. The shielding device (150) is designed such that it at least partially shields against electromagnetic interference radiation impinging on the light receiver (142) through the substrate (110, 210, 310). False alarms are thereby reduced, while the sensitivity of the light receiver is simultaneously increased. The shielding device comprises a metal strip inserted through the substrate from the front side to the back side, and bent over a recess on the back side provided therefor, so that the light receiver is protected against interference radiation even on the back side. The invention further relates to an assembly method for producing a light receiver device (140).
IPC 8 full level
G08B 17/107 (2006.01); G08B 29/18 (2006.01)
CPC (source: EP US)
G08B 17/107 (2013.01 - EP US); G08B 17/113 (2013.01 - EP US); G08B 29/18 (2013.01 - EP US); Y10T 29/49826 (2015.01 - EP US)
Citation (search report)
See references of WO 2010048991A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA MK RS
DOCDB simple family (publication)
WO 2010048991 A1 20100506; CN 102203834 A 20110928; CN 102203834 B 20140514; EP 2342701 A1 20110713; EP 2342701 B1 20121226; ES 2398867 T3 20130322; US 2011260876 A1 20111027; US 8878683 B2 20141104
DOCDB simple family (application)
EP 2008064657 W 20081029; CN 200880131802 A 20081029; EP 08875243 A 20081029; ES 08875243 T 20081029; US 200813126867 A 20081029