Process for the production of diffusing screens for lighting appliances and the diffusing screen thus obtained

(19)

(11)

EP 1 271 049 A3

(12)	EUROPEAN PATENT APPLICATION

(88)	Date of publication A3:
	05.02.2003 Bulletin 2003/06

(43)	Date of publication A2:
	02.01.2003 Bulletin 2003/01

(21)	Application number: 02077517.7

(22)	Date of filing: 25.06.2002

(51)	International Patent Classification (IPC)⁷: F21V 5/00

(84)	Designated Contracting States:
	AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
	Designated Extension States:
	AL LT LV MK RO SI

(30)

Priority:

28.06.2001 IT MI20011368

(71)	Applicant: Sirrah S.r.l.
	62019 Recanati (Macerata) (IT)

(72)	Inventor:
	Guzzini, Giannunzio 62019 Recanati (Macerata) (IT)

(74)	Representative: Coppo, Alessandro
	Ing. Barzanò & Zanardo Milano S.p.A., Via Borgonuovo, 10 20121 Milano 20121 Milano (IT)

(54)	Process for the production of diffusing screens for lighting appliances and the diffusing screen thus obtained

(57) A process for the production of diffusing screens (12) of light radiation for lighting appliances (11), according to which a series of elements (15) is obtained, which form one or more patterns or finishes, on at least one polycarbonate sheet (16), used as a diffusing screen (12), by means of the drawing technology.

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