(19)
(11) EP 0 306 142 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
14.03.1990 Bulletin 1990/11

(43) Date of publication A2:
08.03.1989 Bulletin 1989/10

(21) Application number: 88306857.9

(22) Date of filing: 26.07.1988
(51) International Patent Classification (IPC)4: F21V 7/09
(84) Designated Contracting States:
DE GB NL

(30) Priority: 29.08.1987 GB 8720471

(71) Applicant: GE LIGHTING LIMITED
Enfield, Middlesex EN1 1SB (GB)

(72) Inventor:
  • Gould, Allan Victor Stewart
    Leicester, LE3 2XA (GB)

(74) Representative: Sanders, Peter Colin Christopher et al
BROOKES & MARTIN High Holborn House 52/54 High Holborn
London WC1V 6SE
London WC1V 6SE (GB)


(56) References cited: : 
   
       


    (54) Lamp reflector and a lamp arrangement including the lamp reflector


    (57) A lamp reflector (11) has a reflective surface (14) which is part ellipsoidal (region 15) and part spherical (regions 16, 16'). The part spherical regions distribute light from a transversely mounted arc lamp (12) into zones which would otherwise be masked by the end portions (P, P') of, and or end mountings for, the transversely mounted lamp (12). In the case of a reflector for use in conjunction with a double-ended discharge lamp there are two spherical regions arranged to either side of a plane through the longitudinal axis X of the reflector.







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