GB1173408A - Directional Control Device for a Source of Light - Google Patents

Directional Control Device for a Source of Light

Info

Publication number
GB1173408A
GB1173408A GB24639/68A GB2463968A GB1173408A GB 1173408 A GB1173408 A GB 1173408A GB 24639/68 A GB24639/68 A GB 24639/68A GB 2463968 A GB2463968 A GB 2463968A GB 1173408 A GB1173408 A GB 1173408A
Authority
GB
United Kingdom
Prior art keywords
light
transparent
zones
projections
panel
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
GB24639/68A
Other languages
English (en)
Inventor
Bo Anders Vilhelm Hagner
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
Application filed by Individual filed Critical Individual
Publication of GB1173408A publication Critical patent/GB1173408A/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
    • F21V3/00—Globes; Bowls; Cover glasses
    • 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
    • F21V13/00—Producing particular characteristics or distribution of the light emitted by means of a combination of elements specified in two or more of main groups F21V1/00 - F21V11/00
    • F21V13/02—Combinations of only two kinds of elements
    • F21V13/04—Combinations of only two kinds of elements the elements being reflectors and refractors
    • 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
    • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/02—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages with provision for adjustment
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2103/00—Elongate light sources, e.g. fluorescent tubes

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Illuminated Signs And Luminous Advertising (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
GB24639/68A 1967-05-31 1968-05-23 Directional Control Device for a Source of Light Expired GB1173408A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE762267 1967-05-31

Publications (1)

Publication Number Publication Date
GB1173408A true GB1173408A (en) 1969-12-10

Family

ID=20271860

Family Applications (1)

Application Number Title Priority Date Filing Date
GB24639/68A Expired GB1173408A (en) 1967-05-31 1968-05-23 Directional Control Device for a Source of Light

Country Status (4)

Country Link
CH (1) CH490639A (https=)
DE (1) DE1772529A1 (https=)
FR (1) FR1563590A (https=)
GB (1) GB1173408A (https=)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1635111A3 (de) * 2004-09-13 2008-10-15 GmbH + Co. KG BöSha Transparente Abdeckungen für explosionsgeschützte Leuchten

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4004145A (en) * 1975-02-24 1977-01-18 Ignacio Goytisolo Taltavull Nil-luminance lighting panel

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1635111A3 (de) * 2004-09-13 2008-10-15 GmbH + Co. KG BöSha Transparente Abdeckungen für explosionsgeschützte Leuchten

Also Published As

Publication number Publication date
FR1563590A (https=) 1969-04-11
DE1772529A1 (de) 1971-07-15
CH490639A (fr) 1970-05-15

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees