(19)
(11) EP 2 808 597 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
28.01.2015 Bulletin 2015/05

(43) Date of publication A2:
03.12.2014 Bulletin 2014/49

(21) Application number: 14175384.8

(22) Date of filing: 04.05.2007
(51) International Patent Classification (IPC): 
F21L 14/00(2006.01)
F21V 15/00(2015.01)
F21V 29/00(2015.01)
F21L 4/00(2006.01)
F21V 23/00(2015.01)
F21V 3/04(2006.01)
F21Y 101/02(2006.01)
 F21L 14/02(2006.01)
F21V 21/08(2006.01)
H01L 23/36(2006.01)
F21V 21/096(2006.01)
F21V 25/12(2006.01)
F21V 5/04(2006.01)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

(30) Priority: 04.05.2006 US 797480 P
21.06.2006 US 815336 P
03.07.2006 US 818426 P
11.09.2006 US 843647 P
30.10.2006 US 855357 P

(62) Application number of the earlier application in accordance with Art. 76 EPC:
07719726.7 / 2021682

(71) Applicant: Brasscorp Limited
North York, Ontario M3J 2J1 (CA)

(72) Inventors:
  • Klipstein, Donald L.
    Upper Darby, PA Pennsylvania 7200 (US)
  • Brass, Jack
    Toronto, Ontario M6B 1X6 (CA)
  • Whitfield, Robert Tod
    Toronto, Ontario M5A 3A7 (CA)

(74) Representative: Iannone, Carlo Luigi et al
Barzanò & Zanardo Roma S.p.A. Via Piemonte 26
00187 Roma
00187 Roma (IT)

   


(54) Work light


(57) An LED work light has multichip LEDs and diffusing dome. Each LED may have separate electrical terminals for each chip. The LED work light may have convex lenses forward of each LED. Convex lenses may be hemispherical. Convex lenses may have a nonhemispheric curved surface whose cross section has at least one circular arc and no non.circular arcs. The LED work light has a battery or receives power from an external power source. The LED work light may have a transparent plastic tube as a structural member. A replaceable plastic cover may be added to protect any structural tube or other major transparent part of the LED work light from abrasiosn. The plastic cover may be tubular. The plastic cover may comprise laminations of plastic that can be removed individually after being abraded. Any external power source may be a wall transformer type and may have current limiting means. The LEDs may be attached t the rear surface of an LED PCB that is fastened to a heatsink in a manner achieving thermal contact between the rear surfaces of the LEDs and the heatsink. A position sensing switch may be used.







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