GB496092A - Improvements relating to the lighting of buildings - Google Patents

Improvements relating to the lighting of buildings

Info

Publication number
GB496092A
GB496092A GB7844/38A GB784438A GB496092A GB 496092 A GB496092 A GB 496092A GB 7844/38 A GB7844/38 A GB 7844/38A GB 784438 A GB784438 A GB 784438A GB 496092 A GB496092 A GB 496092A
Authority
GB
United Kingdom
Prior art keywords
lighting
buildings
march
zones
zone
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
GB7844/38A
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.)
Compagnie de Saint Gobain SA
Original Assignee
Compagnie de Saint Gobain SA
Manufactures des Glaces et Produits Chimiques de Saint Gobain SA
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 Compagnie de Saint Gobain SA, Manufactures des Glaces et Produits Chimiques de Saint Gobain SA filed Critical Compagnie de Saint Gobain SA
Publication of GB496092A publication Critical patent/GB496092A/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
    • F21V9/00—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters
    • F21V9/08—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters for producing coloured light, e.g. monochromatic; for reducing intensity of light
    • 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
    • F21V14/00—Controlling the distribution of the light emitted by adjustment of elements
    • F21V14/08—Controlling the distribution of the light emitted by adjustment of elements by movement of the screens or filters

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Ventilation (AREA)
  • Roof Covering Using Slabs Or Stiff Sheets (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

496,092. A.R.P. lighting. SOC. ANON. DES MANUFACTURES DES GLACES ET PRODUITS CHIMIQUES DE ST.-GOBAIN, CHAUNY, & CIREY. March 14, 1938, No. 7844. Convention date, March 12, 1937. [Class 75 (iv)] Window glass having a zone or zones of total absorption is used for A.R.P. lighting, the indoor illumination being of a wavelength or lengths falling wholly within the zone or zones. Specification 481,460 is referred to.
GB7844/38A 1937-03-12 1938-03-14 Improvements relating to the lighting of buildings Expired GB496092A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR496092X 1937-03-12

Publications (1)

Publication Number Publication Date
GB496092A true GB496092A (en) 1938-11-24

Family

ID=8904844

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7844/38A Expired GB496092A (en) 1937-03-12 1938-03-14 Improvements relating to the lighting of buildings

Country Status (1)

Country Link
GB (1) GB496092A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2572656A (en) * 1949-08-16 1951-10-23 Mitchell W Ortenburger Blind flying device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2572656A (en) * 1949-08-16 1951-10-23 Mitchell W Ortenburger Blind flying device

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