GB300550A - - Google Patents

Info

Publication number
GB300550A
GB300550A GB32898/28A GB3289828A GB300550A GB 300550 A GB300550 A GB 300550A GB 32898/28 A GB32898/28 A GB 32898/28A GB 3289828 A GB3289828 A GB 3289828A GB 300550 A GB300550 A GB 300550A
Authority
GB
United Kingdom
Prior art keywords
revolution
aperture
light
reflector
circular
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
GB32898/28A
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.)
Schott AG
Original Assignee
Jenaer Glaswerk Schott and Gen
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 Jenaer Glaswerk Schott and Gen filed Critical Jenaer Glaswerk Schott and Gen
Publication of GB300550A publication Critical patent/GB300550A/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
    • F21V7/04—Optical design

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

300,550. Jenaer Glaswerk Schott & Gen. Nov. 14, 1927, [Convention date]. Reflectors. - In a bell-shaped reflector for shopwindow lighting in which the neck portion a and the upper part of the body-portion c together form part of a surface of revolution about an axis which is inclined at an angle to the plane of the light - emitting aperture of the reflector, the lower part of the body-portion c is not continued as part of the surface of revolution but has its longest side e and its shortest side f bent inwardly so as to form a circular light-emitting aperture. This aperture may then be closed by a circular domed glass plate g.
GB32898/28A 1927-11-14 1928-11-10 Expired GB300550A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE300550T 1927-11-14

Publications (1)

Publication Number Publication Date
GB300550A true GB300550A (en) 1929-08-01

Family

ID=31894257

Family Applications (1)

Application Number Title Priority Date Filing Date
GB32898/28A Expired GB300550A (en) 1927-11-14 1928-11-10

Country Status (1)

Country Link
GB (1) GB300550A (en)

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