GB2245696A - Light fixtures - Google Patents

Light fixtures

Info

Publication number
GB2245696A
GB2245696A GB8924428A GB8924428A GB2245696A GB 2245696 A GB2245696 A GB 2245696A GB 8924428 A GB8924428 A GB 8924428A GB 8924428 A GB8924428 A GB 8924428A GB 2245696 A GB2245696 A GB 2245696A
Authority
GB
United Kingdom
Prior art keywords
grating
light
light fixtures
reflector
curvature
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.)
Granted
Application number
GB8924428A
Other versions
GB8924428D0 (en
GB2245696B (en
Inventor
Kai Ove Sorensen
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.)
LYSTEKNISK LAB
Original Assignee
LYSTEKNISK LAB
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 LYSTEKNISK LAB filed Critical LYSTEKNISK LAB
Publication of GB8924428D0 publication Critical patent/GB8924428D0/en
Publication of GB2245696A publication Critical patent/GB2245696A/en
Application granted granted Critical
Publication of GB2245696B publication Critical patent/GB2245696B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V11/00—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Diffracting Gratings Or Hologram Optical Elements (AREA)
  • Optical Elements Other Than Lenses (AREA)
  • Securing Globes, Refractors, Reflectors Or The Like (AREA)

Abstract

Light fixtures with a reflecting reflector and comprising an oblong light source and a light grating. According to the invention at least some of the parts of the grating are inclined relative to the longitudinal axis of the fixture in such a manner that the light hitting a part of the grating is reflected into a side reflector whereby the curvature of the latter is utilized. As a result the grating need not comprise curved surfaces. In addition the geometric loss is reduced at the same time as the manufacture is simplified and the final structure is reliable.
GB8924428A 1987-05-18 1988-05-17 Light fixtures Expired - Fee Related GB2245696B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DK251387A DK160057C (en) 1987-05-18 1987-05-18 luminaire
PCT/DK1988/000079 WO1988009461A1 (en) 1987-05-18 1988-05-17 Light fixtures

Publications (3)

Publication Number Publication Date
GB8924428D0 GB8924428D0 (en) 1990-08-01
GB2245696A true GB2245696A (en) 1992-01-08
GB2245696B GB2245696B (en) 1992-03-25

Family

ID=8112909

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8924428A Expired - Fee Related GB2245696B (en) 1987-05-18 1988-05-17 Light fixtures

Country Status (6)

Country Link
AU (1) AU1932688A (en)
DE (1) DE3890413T1 (en)
DK (1) DK160057C (en)
GB (1) GB2245696B (en)
SE (1) SE462932B (en)
WO (1) WO1988009461A1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE888831C (en) * 1951-02-18 1953-09-03 Franz Zwick Screen grids for light sources
DK123885B (en) * 1967-03-29 1972-08-14 Elektriska Ab Exaktor Lighting grille.
DE3002137B1 (en) * 1980-01-22 1981-06-11 Philips Patentverwaltung Gmbh, 2000 Hamburg Luminaire grid
DE3440028A1 (en) * 1983-11-03 1985-05-15 Sabir S.A., Belleville-sur-Saone, Rhône Glare protection device for luminous elements having a linear light source

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE186601C1 (en) * 1963-01-01

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE888831C (en) * 1951-02-18 1953-09-03 Franz Zwick Screen grids for light sources
DK123885B (en) * 1967-03-29 1972-08-14 Elektriska Ab Exaktor Lighting grille.
DE3002137B1 (en) * 1980-01-22 1981-06-11 Philips Patentverwaltung Gmbh, 2000 Hamburg Luminaire grid
DE3440028A1 (en) * 1983-11-03 1985-05-15 Sabir S.A., Belleville-sur-Saone, Rhône Glare protection device for luminous elements having a linear light source

Also Published As

Publication number Publication date
DK160057B (en) 1991-01-21
DE3890413T1 (en) 1997-07-31
SE462932B (en) 1990-09-17
SE8903860L (en) 1989-11-17
SE8903860D0 (en) 1989-11-17
DK251387D0 (en) 1987-05-18
AU1932688A (en) 1988-12-21
GB8924428D0 (en) 1990-08-01
DK160057C (en) 1991-06-10
GB2245696B (en) 1992-03-25
WO1988009461A1 (en) 1988-12-01
DK251387A (en) 1988-11-19

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19960517