US 2284194 A
Description (OCR text may contain errors)
May 26-, 1942.
A. GANGBIN INDIRECT LIGHTING SYSTEM Filed July 1, 1940 I INVENTOR flrlb ur Gang]: in BY ATTORNEYS Patented my 26, 1942 2,2si,194 INDIRECT LIGHTING SYSTEM Arthur Gangbin, Madera, Calif., assignor of fifty per cent to lrol G. Gangbin, Fresno, Calif Application July. 1, 1940, Serial No. 343,450
4 Claims. (01. 240-9) This invention relates in general to an improved indirect lighting system, and includes the subject matter divided out of my copending application'on Ceiling construction and method of laying out same, Ser. No. 273,917, filed May 16, 1939.
In particular the invention is directed to, and it is my principal object to provide, an improved indirect fighting system which includes a fanciful cove or molding having light sources arranged therewith to produce unique, modemistic and variable lighting effects.
Another object of the invention isto provide an indirect lighting system which, when in operation, causes no glare, but rather a soft, pleasing and diffused light, which does not cause any appreciable shadows in the\ area illuminated; and in which the light sources are entirely invisible.
An additional object of the invention is to provide a fanciful cove or molding having air flow parts, or vents of an air conditioning system included therein and which vents cannot be seen from below.
A further object of the invention is to produce a simple and inexpensive device and yetone,
which will be exceedingly effective for pose for which it is designed.
These objects I accomplish by means of such structure and relative arrangement'of parts as will fully appearby a perusal of the following specification and claims.
In the drawing similar characters of reference the pur- 7 indicate corresponding .parts in the several views:
Figure 1 is a sectional elevation of the fanciful cove or molding mounted in place and including the light sources.
Figure 2 is a fragmentary sectional elevation showing the cove portion which includes the air vents.
Referring now more particularly to the characters of reference on the drawing, and at present to Fig. 1; the fanciful cove which I embody in my improved indirect lighting system is mounted horizontally in the corner between a ceiling l and side wall 2, or in a similar position in other structures; the cove in the present instance being shown, for clarity, as preformed sheet-metal but obviously may be of plaster and lath or othervconstruction ifdesired;
' This cove, on the under; surface, presents mainly a plurality of curved surfacesfwhich' in clude a concave-convex portion 3 extending upwardly' and laterally outwardly from the wall 2 some distance below the ceiling A horizontal, upwardly opening trough 4 of substantially semi-1 circular configuration in cross-section is' disposed inwardly of and flush with the upper end of portion 3.
A relatively wide, concave reflecting surface 5,
mainly formed on the radius of acircle of. relatively great diameter, extends from the inner edge of trough in a laterally outwarddirection and at a slight upward angle from said edge. From the outer end of surface 5, the cove extends convexly upwardly as at 6, and such curved sections shields another upwardly opening trough I disposed therebehlnd. I
Another relatively wide, concave reflecting surface 8, formed and disposed in substantially the same relative position as surface 5, extends from the inner-edge of trough 1, although of,
course in a vertically elevated plane relativeto said surface 5; the outer edge of surface 8 terminating at the ceiling.
Substantially centrally of its inner and outer edges, the reflecting surface 5 is formed with a longitudinal slot 9 of substantial widthfwhich opens. intoan inverted, enclosed and relatively deep, channel It; the cove being formed to provide a downwardly facing concave reflecting ceillng II in said channel. The ceiling ll extends laterally some distance beyond the slot 9 and there merges, into thelopposed edges of a pair of upwardly facing troughs l2 which extend on opposite sides of and parallel to slot 9 but slightly above the plane thereof; exteriorly convex pop-- tions l3 extending between adjacent edges of troughs I2 and adjacent edges of the slot 9 whereby to shield said troughs from sight and to form said slot as what may be termed a throat.
' The troughs 4, I and I2 are'each flttedwith a longitudinally extending neon tube or similar source ofartificiallight; sail light sources being identified as l4, l5 and I6 respectively. At spaced points in the length'thereof, the cove is supported by brackets B which atone edge conform to said cove and at their other edges are connected with the ceiling and wall members.
Such brackets may be formed by the method de-' scribed in my copending application identified hereinbefore. e
As installed for use, all of, the reflecting surfaces are painted or otherwise finished white,
and the neon tube is of one color, preferably green, while the tubes l6 are of another color, preferably red; Tube. 15 is of a color different i from that of tube .M, and maybe red, as are tubes It. The tubes l4; l5 and .IG are wiredso' that they may be illuminated independently of each other whereby varied lighting effects may be obtained, as will hereinafter appear.
When all or the tubes are'illuininated, tube ll casts its colored light rays directly onto reflectin fleeting from ceiling ll back into throat 9 causing the unique effect of a colored band of light V l laterally offset-relative to the latter. other means length ofreflectingwsurface I. This surface, 1
emanating: from -throat! and extending the full however, is reflecting a different color, which thus appears in the form of two separatedbands as slot 8 is disposed centrally of the edges of said Having thus claim as new an Letters Patent is:
1. man indirect lighting system for building usefuland desire to secure by 6 structures, an upwardly opening'relatively long surface 5 on both sides of slot or throat 8; the diflerentcolor'of thelight rays form tubes l6 recove trough, a light source in and extending along said trough, means forming a longitudinal transversely concave reflecting surface in the building structure above said trough and mainly forming an invertedlongitudinal channel opening from above'through said surface intermedifate the edges thereof laterallybffsetrelatlve to .the trough and extending substantially forthe 1 dffcribed my inventionrwhat 1' surface 5. Thelight rays from tube ll' reflect from surface 8 and also produce, another colored band. l V I 2.} an indirect lighting system, an upwardly A considerably varied effect ishad if tubes l6 ii'openingfrelativelyplong trough, a light source in are. shut ed, the effect to the eye then being 1 the trough, means forming a longitudinal translength of the trough, and a separate light source ;in and extendingalong said inverted channel.
7 that the colored bands reflecting from surface 5 '20 versely concave reflecting surface have the as set forth herein. a
are then separatedbylan unlighted strip, as no substantial amount of light from tube H can reflectfrom ceiling il. 7 l 4 Astill further effect can be obtained by shut ting of! tube 1 l4 leaving }only tubes I 5 and I6 illuminated. In this instance a red band appears through throat 9 and surface 8 is illumi-- natedwith alike color, theportion of surface 5 between throat 9 and the convex portion 6 of the cove then standing out in dark bold relief .and go v Referring particularly now to Fig. 2 of the drawing, the bottom ofchannels I: may be formed witha series of air vents V whereby air maybe drawn from the area beneath the cove through threat 9 into'channelsili and troughs II from whence the air then flows through vents V to the interior of'the cove, and which maybe connectedwith the suction side of an air conditioning systemin any suitable-manner. The.
advantage of such vent arrangement resides in the fact that'the'vents cannot be seen from-below I the cove, and do not detract from-the indirect lighting effects; and the channels I 2 are i'nherently located where the heated air in the room below will naturally tend to flow. From the foregoing description it will be readily seen that Ihave produced sucha system as substantially fulflllsth'e objects f the invention While this specification sets to in seam the present and preferred construction f the system,
still in practice such deviations from suchdetail may be resorted to 'do not forma defrom the spirit of the invention, as de flned by the appended claims. 1
trough and mainly laterally: offset therefrom, other means :forming an inverted longitudinal channel having an opening through said surface from: above; and. intermediate theedges thereof 5 and extendingfor the length of the tfough,"lan
upwardly opening trough insaid channel, and v another light source disposed in .said channel trough, said inverted channel having areflecting ceilins th na r a 3. In an indirect'lighting system,-anupwardly opening relatively long trough, a light source in "the trough, means. forming a longitudinaltransversely concave reflecting surface above the trough and mainly laterally ofl'setitherefrom,
othermeans formingan inverted longitudinal channel'having an opening throughsaid surface from above and intermediate the edges thereof and extending for, the length, ofthe trough, the internal width of said channel above the channel 40 opening being substantially greater thant he' width of said opening, an upwardly openin trough on" said side of said opening,f and a separate light source. in said channel trough 4. In an: indirect lighting system; an upwardly 5 opening relatively long trough, a'lightsourcein the trough, means forming a longitudinal ,tra'nsl versely concave reflecting surface above: the
trough and 7 mainly laterally n offset therefrom,
other means forming an inverted longitudinal channel having an opening through ,said surface 1 from above and intermediate the edges thereof and extending for the length of the trough,the internal width of said channel above the channel opening being 1 substantially greater than the width of said opening, an :upwardly, opening trough on each side of said opening, and a separate light source in said channel troughs. the r channel having a transversely concave reflecting ceiling therein above and extending betweensaid ARTHUR cam/any.