GB1550336A - Suppression of colour fringing in lamps - Google Patents

Suppression of colour fringing in lamps

Info

Publication number
GB1550336A
GB1550336A GB29685/75A GB2968575A GB1550336A GB 1550336 A GB1550336 A GB 1550336A GB 29685/75 A GB29685/75 A GB 29685/75A GB 2968575 A GB2968575 A GB 2968575A GB 1550336 A GB1550336 A GB 1550336A
Authority
GB
United Kingdom
Prior art keywords
lamps
suppression
colour fringing
fringing
colour
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB29685/75A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Thorn Electrical Industries Ltd
Original Assignee
Thorn Electrical Industries Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Thorn Electrical Industries Ltd filed Critical Thorn Electrical Industries Ltd
Priority to GB29685/75A priority Critical patent/GB1550336A/en
Publication of GB1550336A publication Critical patent/GB1550336A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/40—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by screens, non-reflecting members, light-shielding members or fixed shades
    • F21S41/43—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by screens, non-reflecting members, light-shielding members or fixed shades characterised by the shape thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
    • F21S41/32—Optical layout thereof
    • F21S41/321—Optical layout thereof the reflector being a surface of revolution or a planar surface, e.g. truncated

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
GB29685/75A 1976-09-15 1976-09-15 Suppression of colour fringing in lamps Expired GB1550336A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB29685/75A GB1550336A (en) 1976-09-15 1976-09-15 Suppression of colour fringing in lamps

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB29685/75A GB1550336A (en) 1976-09-15 1976-09-15 Suppression of colour fringing in lamps

Publications (1)

Publication Number Publication Date
GB1550336A true GB1550336A (en) 1979-08-15

Family

ID=10295477

Family Applications (1)

Application Number Title Priority Date Filing Date
GB29685/75A Expired GB1550336A (en) 1976-09-15 1976-09-15 Suppression of colour fringing in lamps

Country Status (1)

Country Link
GB (1) GB1550336A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4686610A (en) * 1984-06-27 1987-08-11 Cibie Projecteurs Motor vehicle headlamps projecting a masked beam, in particular a dipped beam

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4686610A (en) * 1984-06-27 1987-08-11 Cibie Projecteurs Motor vehicle headlamps projecting a masked beam, in particular a dipped beam

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Legal Events

Date Code Title Description
PS Patent sealed
746 Register noted 'licences of right' (sect. 46/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19930915