US961196A - Electric-light reflector. - Google Patents

Electric-light reflector. Download PDF

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Publication number
US961196A
US961196A US55428710A US1910554287A US961196A US 961196 A US961196 A US 961196A US 55428710 A US55428710 A US 55428710A US 1910554287 A US1910554287 A US 1910554287A US 961196 A US961196 A US 961196A
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Prior art keywords
reflector
electric
screens
lamps
light reflector
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Expired - Lifetime
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US55428710A
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Gilbert Fox Allom
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    • 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
    • F21V11/00—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00
    • F21V11/02—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00 using parallel laminae or strips, e.g. of Venetian-blind type
    • 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
    • F21V7/005—Reflectors for light sources with an elongated shape to cooperate with linear light sources
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2131/00—Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
    • F21W2131/30—Lighting for domestic or personal use
    • F21W2131/304—Lighting for domestic or personal use for pictures

Definitions

  • My invention relates to reflectors for use in connection with electric lamps, and to that class of reflector chiefly intendedior illuminating pictures and tapestries and which isof channel shape and provided with tubular lamps which lie in the back'of the channel.
  • reflectors of this kind are used it frequently happens that a person standing to view a picture will, in looking at the upper part of the picture, either see the lamps, or the glare from the upper part of the reflector, also an objeetional glare is sometimes cast on to the top of the picture.
  • the object of my invention is to provide means which will both obscure the lamps and prevent a glare either to the eyes of an observer or upon the top of the picture Without at the same time interfering with the illumination of such picture.
  • my invention consists. in arranging a screen or screens inside the reflector in such positions, that it or they will conceal the lamp and cover the glaring part of the reflector in the manner hereinbefore described-the screens being mounted in the reflector in such a way that they can be ar ranged with their surfaces approximately parallel to the rays which pass on both sides of them so that-they obstruct only'a minimum of light from the object to be illuminated.
  • FIG. 1 is a view looking in the direction of the; arrow, Fig. 1.
  • these figures a indicates an Channel shaped reflector, and b, b the lamps arranged therein, the said reflectors heing' ordinary/ shaped in a well-known manner so that the rays 'willbe reflected from it in more or less parallel lines.
  • 4 a, 0 are the screens which are arranged, in accordance with my invention, at some distance from the surface of the reflector so the said screens being plain or non-reflecting metal strips attached at their ends to the reflector, tor instance, by screws d, d which allow the said strips to be placed at any suitable angle.
  • the width and len th of the screens 0, 0 can be varied according. to the size of the reflector and the number of the lamps which the latter is intended to carry, also in some cases one of the screens can be dispensed with, or, if desired more than two screens can be em-, ployed.
  • a lighting fixture the combination with a channel-shaped reflector having a tubular lamp or lamps fixed in the packet the channel, of a screen or screens having a plurality of non-reflecting surfaces and ocated in said channel.

Description

G. F. ALLOM. ELECTRIC LIGHT REFLEGTOB. APPLICATION FILED APR.Q,1910.
96 1 1'96 Patented June 14, 1910.
GILBERT FOX ALLOM, OF LONDON, ENGLAND.
ELECTRIC-LiG-HT REFLECTOR.
Application filed April 8,
Specification of Letters Patent.
Patented Juneil, rate. 1910. Serial No. teaser.
To all whom it mwy concern:
Be it, known that I, Gmsnn'r Fox ALLOM, a subject of the King of Great Britain, residing at 15 George street, Hanover Square, London, England, have invented new, and useful Improvements 'in Electric Light Reflectors, and of which the following is a specification. I
My invention relates to reflectors for use in connection with electric lamps, and to that class of reflector chiefly intendedior illuminating pictures and tapestries and which isof channel shape and provided with tubular lamps which lie in the back'of the channel. hen reflectors of this kind are used it frequently happens that a person standing to view a picture will, in looking at the upper part of the picture, either see the lamps, or the glare from the upper part of the reflector, also an objeetional glare is sometimes cast on to the top of the picture.
Now, the object of my invention is to provide means which will both obscure the lamps and prevent a glare either to the eyes of an observer or upon the top of the picture Without at the same time interfering with the illumination of such picture.
I To this end my invention consists. in arranging a screen or screens inside the reflector in such positions, that it or they will conceal the lamp and cover the glaring part of the reflector in the manner hereinbefore described-the screens being mounted in the reflector in such a way that they can be ar ranged with their surfaces approximately parallel to the rays which pass on both sides of them so that-they obstruct only'a minimum of light from the object to be illuminated.
My inventiori will bereadily understood by reference to the accompanying drawing, -in which:- Figure 1 is a sectional side viewof a lighting fitting carrying a reflectou'ofthe kind in question and having two screens applied, v to it according to my invention and Fig. Q
is a view looking in the direction of the; arrow, Fig. 1.
Tn these figures a indicates an Channel shaped reflector, and b, b the lamps arranged therein, the said reflectors heing' ordinary/ shaped in a well-known manner so that the rays 'willbe reflected from it in more or less parallel lines. 4 a, 0 are the screens which are arranged, in accordance with my invention, at some distance from the surface of the reflector so the said screens being plain or non-reflecting metal strips attached at their ends to the reflector, tor instance, by screws d, d which allow the said strips to be placed at any suitable angle.
can stand'beneath the reflector in a much more forward osition, without seeing the lamp, than would be the case if the screen 0 was not employed, and the screen 0 which latter screen also prevents the upper art of the picture being unduly illuminated: but allows of the illumination being concentrated on the central of the picture or the like.
It will be understood that the width and len th of the screens 0, 0 can be varied according. to the size of the reflector and the number of the lamps which the latter is intended to carry, also in some cases one of the screens can be dispensed with, or, if desired more than two screens can be em-, ployed.
Claims.
1. In a lighting fixture, the combination with a channel-shaped reflector having a tubular lamp or lamps fixed in the packet the channel, of a screen or screens having a plurality of non-reflecting surfaces and ocated in said channel. v
2. The eombinati'eu'with a channel shaped reflector, havingJubu-lar lamps fixed in the back of the channel, of non-reflecting screens portions GILBERT FOX ALLOM.
. Witnesses:
JOHN E. Bonsrmno,
adjustably secured to the end surface of the that the light rays can pass behind them, l
With the described arrangement a person lare from the top of the reflector will be 0 soured by the 7Q;
US55428710A 1910-04-08 1910-04-08 Electric-light reflector. Expired - Lifetime US961196A (en)

Priority Applications (1)

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US55428710A US961196A (en) 1910-04-08 1910-04-08 Electric-light reflector.

Applications Claiming Priority (1)

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US55428710A US961196A (en) 1910-04-08 1910-04-08 Electric-light reflector.

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US961196A true US961196A (en) 1910-06-14

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US55428710A Expired - Lifetime US961196A (en) 1910-04-08 1910-04-08 Electric-light reflector.

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