GB404695A - Improvements in or relating to illuminating devices - Google Patents

Improvements in or relating to illuminating devices

Info

Publication number
GB404695A
GB404695A GB20599/32A GB2059932A GB404695A GB 404695 A GB404695 A GB 404695A GB 20599/32 A GB20599/32 A GB 20599/32A GB 2059932 A GB2059932 A GB 2059932A GB 404695 A GB404695 A GB 404695A
Authority
GB
United Kingdom
Prior art keywords
reflector
bowl
conical
light
frusto
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
GB20599/32A
Other languages
English (en)
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 to NL37042D priority Critical patent/NL37042C/xx
Priority to BE397747D priority patent/BE397747A/xx
Application filed by Individual filed Critical Individual
Priority to GB20599/32A priority patent/GB404695A/en
Priority to DED66249D priority patent/DE626301C/de
Priority to FR760530D priority patent/FR760530A/fr
Publication of GB404695A publication Critical patent/GB404695A/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
    • F21V7/00—Reflectors for light sources
    • F21V7/0008—Reflectors for light sources providing for indirect lighting
    • 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
    • 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
    • F21V3/02—Globes; Bowls; Cover glasses characterised by the shape

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
GB20599/32A 1932-07-21 1932-07-21 Improvements in or relating to illuminating devices Expired GB404695A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
NL37042D NL37042C (enrdf_load_stackoverflow) 1932-07-21
BE397747D BE397747A (enrdf_load_stackoverflow) 1932-07-21
GB20599/32A GB404695A (en) 1932-07-21 1932-07-21 Improvements in or relating to illuminating devices
DED66249D DE626301C (de) 1932-07-21 1933-07-15 Leuchte, insbesondere fuer elektrische Lichtquellen
FR760530D FR760530A (fr) 1932-07-21 1933-07-20 Perfectionnements aux dispositifs pour modifier la qualité ou distribution de lumière émanant de sources d'éclairage artificielles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB20599/32A GB404695A (en) 1932-07-21 1932-07-21 Improvements in or relating to illuminating devices

Publications (1)

Publication Number Publication Date
GB404695A true GB404695A (en) 1934-01-22

Family

ID=10148590

Family Applications (1)

Application Number Title Priority Date Filing Date
GB20599/32A Expired GB404695A (en) 1932-07-21 1932-07-21 Improvements in or relating to illuminating devices

Country Status (5)

Country Link
BE (1) BE397747A (enrdf_load_stackoverflow)
DE (1) DE626301C (enrdf_load_stackoverflow)
FR (1) FR760530A (enrdf_load_stackoverflow)
GB (1) GB404695A (enrdf_load_stackoverflow)
NL (1) NL37042C (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2462142A1 (fr) * 1979-07-26 1981-02-13 Rodenstock Optik G Procede et montage pour l'utilisation de diodes electroluminescentes de serie a une intensite lumineuse predeterminee
WO2023131513A1 (en) * 2022-01-04 2023-07-13 Signify Holding B.V. A luminaire kit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2462142A1 (fr) * 1979-07-26 1981-02-13 Rodenstock Optik G Procede et montage pour l'utilisation de diodes electroluminescentes de serie a une intensite lumineuse predeterminee
WO2023131513A1 (en) * 2022-01-04 2023-07-13 Signify Holding B.V. A luminaire kit

Also Published As

Publication number Publication date
NL37042C (enrdf_load_stackoverflow)
FR760530A (fr) 1934-02-24
BE397747A (enrdf_load_stackoverflow)
DE626301C (de) 1936-02-24

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