Optical group with an adjustable light beam

(19)

(11)

EP 1 785 667 A3

(12)	EUROPEAN PATENT APPLICATION

(88)	Date of publication A3:
	30.05.2007 Bulletin 2007/22

(43)	Date of publication A2:
	16.05.2007 Bulletin 2007/20

(21)	Application number: 06123798.8

(22)	Date of filing: 10.11.2006

(51)

International Patent Classification (IPC):

F21V 7/00^(2006.01)
F21V 14/04^(2006.01)

F21V 7/16^(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 NL PL PT RO SE SI SK TR
	Designated Extension States:
	AL BA HR MK YU

(30)

Priority:

11.11.2005 IT VI20050297

(71)	Applicant: Beghelli S.p.A.
	40050 Monteveglio, Bologna (IT)

(72)	Inventor:
	Beghelli, Gian Pietro 40050 Monteveglio (BO) (IT)

(74)	Representative: Zanardo, Giovanni
	Barzanò & Zarnado Milano S.p.A. Via Borgonuovo 10 I-20121 Milano I-20121 Milano (IT)

(54)	Optical group with an adjustable light beam

(57) An optical group with an adjustable light beam, comprising at least one lamp-holder device, at least two linear fluorescent lamps (10, 11) and a specular reflector (12); in the centre of the body (5) of the reflector (12) there are at least two curvilinear surfaces (6, 16-19), which, by varying their angular position, allow a variation in the form of the light emission of a lighting appliance, in relation to the various application requirements. Solutions such as those projected allow high efficiency levels of the lighting appliance to be maintained and obtained in particularly restricted volumes.

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