GB394451A - Improvements in lamp shades or reflectors - Google Patents

Improvements in lamp shades or reflectors

Info

Publication number
GB394451A
GB394451A GB919232A GB919232A GB394451A GB 394451 A GB394451 A GB 394451A GB 919232 A GB919232 A GB 919232A GB 919232 A GB919232 A GB 919232A GB 394451 A GB394451 A GB 394451A
Authority
GB
United Kingdom
Prior art keywords
reflector
shade
lamp
reflectors
apertures
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
GB919232A
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.)
General Electric Co PLC
Original Assignee
General Electric Co PLC
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 General Electric Co PLC filed Critical General Electric Co PLC
Priority to GB919232A priority Critical patent/GB394451A/en
Publication of GB394451A publication Critical patent/GB394451A/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

Abstract

394,451. Lamp shades and reflectors. GENERAL ELECTRIC CO., Ltd., and RANDALL, E. L., Magnet House, Kingsway, London, March 30, 1932, No. 9192. [Class 75 (ii).] A lamp shade or reflector 1 is provided with apertures 2 to permit direct transmission of light laterally t h r o u gh the shade or reflector from the source, and one or more readily transferable translucent screens 4 to give diffused light transmission laterally through the shade or reflector in selected directions. As shown, a screen 4 covers any selected aperture, and is supported at its lower edge by a lip 3 on the reflector and at the upper edge by a holder 5 which may be removable to any other aperture. The translucent screen may carry an indicating number or letter when the lamp is used to illuminate bookshelves in a bay. Opaque screens with inner reflecting surfaces may be arranged in some of the apertures.
GB919232A 1932-03-30 1932-03-30 Improvements in lamp shades or reflectors Expired GB394451A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB919232A GB394451A (en) 1932-03-30 1932-03-30 Improvements in lamp shades or reflectors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB919232A GB394451A (en) 1932-03-30 1932-03-30 Improvements in lamp shades or reflectors

Publications (1)

Publication Number Publication Date
GB394451A true GB394451A (en) 1933-06-29

Family

ID=9867171

Family Applications (1)

Application Number Title Priority Date Filing Date
GB919232A Expired GB394451A (en) 1932-03-30 1932-03-30 Improvements in lamp shades or reflectors

Country Status (1)

Country Link
GB (1) GB394451A (en)

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