GB2103778B - A double grid for fluorescent lamp units - Google Patents

A double grid for fluorescent lamp units

Info

Publication number
GB2103778B
GB2103778B GB08221795A GB8221795A GB2103778B GB 2103778 B GB2103778 B GB 2103778B GB 08221795 A GB08221795 A GB 08221795A GB 8221795 A GB8221795 A GB 8221795A GB 2103778 B GB2103778 B GB 2103778B
Authority
GB
United Kingdom
Prior art keywords
fluorescent lamp
lamp units
double grid
grid
double
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
GB08221795A
Other versions
GB2103778A (en
Inventor
Sven-Aage Willumsen
Steen Willumsen
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.)
Individual
Original Assignee
Individual
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
Priority claimed from DK515880A external-priority patent/DK155760C/en
Priority claimed from DK157181A external-priority patent/DK156847C/en
Application filed by Individual filed Critical Individual
Publication of GB2103778A publication Critical patent/GB2103778A/en
Application granted granted Critical
Publication of GB2103778B publication Critical patent/GB2103778B/en
Expired 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
    • F21V11/06—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00 using crossed laminae or strips, e.g. grid-shaped louvers; using lattices or honeycombs
GB08221795A 1980-12-03 1981-12-02 A double grid for fluorescent lamp units Expired GB2103778B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DK515880A DK155760C (en) 1980-12-03 1980-12-03 COMBINATION GRID FOR LIGHTING FITTINGS
DK157181A DK156847C (en) 1981-04-07 1981-04-07 LIGHTING FOR LIGHTING LIGHT

Publications (2)

Publication Number Publication Date
GB2103778A GB2103778A (en) 1983-02-23
GB2103778B true GB2103778B (en) 1984-09-26

Family

ID=26065912

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08221795A Expired GB2103778B (en) 1980-12-03 1981-12-02 A double grid for fluorescent lamp units

Country Status (6)

Country Link
EP (1) EP0065968A1 (en)
FI (1) FI69353C (en)
GB (1) GB2103778B (en)
NL (1) NL8120461A (en)
SE (1) SE451091B (en)
WO (1) WO1982001930A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK173787A (en) * 1987-04-06 1988-10-07 Willumsen Sven A Hybridomas which produce a receptor which immunoreacts with thrombospondin, such receptors, a diagnostic, site- specific, image-formation reagent comprising such receptors, an in-vitro method for detecting and differentiating between stimulated
DE102005003898A1 (en) † 2005-01-27 2006-08-03 Wacker Chemie Ag Continuous process for the preparation of SiOC-containing compounds
WO2007066260A1 (en) 2005-12-07 2007-06-14 Koninklijke Philips Electronics N.V. A lighting module

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2506951A (en) * 1945-11-05 1950-05-09 Leroy C Doane Foraminous sheet material and luminaire made therefrom
US2904673A (en) * 1957-02-13 1959-09-15 Sr Edwin F Guth Light diffusors for illuminating devices
FR1195541A (en) * 1958-05-02 1959-11-18 Improvements to screen devices
US2996609A (en) * 1958-07-07 1961-08-15 Wilson Bertram Arnold Sheet panel
US2971083A (en) * 1958-11-14 1961-02-07 Gen Electric Low brightness louver
US3024355A (en) * 1959-12-07 1962-03-06 Willis L Lipscomb Curved, cellular light control panel
US3413460A (en) * 1964-12-28 1968-11-26 Sjolander Karl Lennart Ingemar Optical anti-dazzling device
FR1482572A (en) * 1966-05-26 1967-05-26 Improvements to electrical lighting devices for experimental enclosures

Also Published As

Publication number Publication date
FI822660A0 (en) 1982-07-30
SE8204544D0 (en) 1982-08-02
NL8120461A (en) 1982-10-01
FI69353B (en) 1985-09-30
FI69353C (en) 1986-01-10
SE451091B (en) 1987-08-31
SE8204544L (en) 1982-08-02
GB2103778A (en) 1983-02-23
FI822660L (en) 1982-07-30
WO1982001930A1 (en) 1982-06-10
EP0065968A1 (en) 1982-12-08

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Legal Events

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