US3238364A

US3238364A - Color lighting of vertically arranged objects

Info

Publication number: US3238364A
Application number: US346426A
Authority: US
Inventors: George R Bechtel; Arthur W Faiello
Original assignee: Diebold Inc
Current assignee: Diebold Nixdorf Inc
Priority date: 1964-02-21
Filing date: 1964-02-21
Publication date: 1966-03-01
Anticipated expiration: 1983-03-01

Description

COLOR LIGHTING OF VERTICALLY ARRANGED OBJECTS 5 Sheets-Sheet 1 Filed Feb. 21 1964 om Q INVENTORS GeorgeR. Beakfiei/ and BY ArHuwWFaiello m M ATTORNEYS March 1966 G. R. BECHTEL ETAL 3,

COLOR LIGHTING OF VERTICALLY ARRANGED OBJECTS Filed Feb. 21 1964 3 Sheets-Sheet 2 INVENTORS R. Beahfieb and ATTORNEYS George BY Arfiluzr WIFwwllo 9mm, Wk

United States Patent 3,238,364 COLOR LIGHTING 0F VERTICALLY ARRANGED OBJECTS George R. Bechtel, Canton, and Arthur W. Faiello, Magnolia, Ohio, assiguors to Diehold, Incorporated, Canton, (lhio, a corporation of Ohio Filed Feb. 21, 1964, Ser. No. 346,426 11 Claims. (Cl. 240-2) The invention relates to the selective color lighting of objects, and more particularly to the color lighting of a large-sized highly-polished, surface area of an object, such as a vault door, normally disposed in a generally vertical position to brightly illuminate the polished surface area of such an object with desired colored light substantially uniformly throughout such surface area without substantial illumination of other objects immediately adjacent such selected surface area.

There is an existing need for means and procedures for illuminating brightly and uniformly the highlypolished surfaces of large-sized objects with colored light. For example, it is desired brightly and uniformly to illuminate the surface of a vault door in a banking institution with colored light, without necessarily lighting adjacent building surfaces to the same intensity or with the selected color. Vault doors normally have highly-polished surfaces, normally are disposed in a vertical position, normally have a large surface area to be illuminated, and such surface areas are usually generally rectangular in shape.

The bright color lighting of such a selected area presents a number of problems. Such objects usually are lighted with spotlights or floodlights. However, uniform lighting of highly-polished surfaces is extremely diflicult to accomplish. There is a tendency for brilliant spot illumination on a large surface area originating from the spotlight beam source, with the brilliantly illuminated spot surrounded by poorly illuminated zones or with substantially less lighting intensity. This tendency of non-uniform illumination is aggravated where highly-polished surfaces are involved.

The problem is complicated further where the areas to be illuminated are so extensive that a plurality of light source units are required and particularly where such areas are generally rectangular in shape. Further complications are involved where the illuminated object is indoors in a relatively confined space and is generally vertically disposed. Moving objects under these circumstances may interrupt light beams emanating from light sources or fixtures located laterally of the object to be illuminated, thus disturbing the uniformity of illumination.

Another problem arises where a battery of a large number of spotlights is located in a banking foyer laterally opposite a vault door to illuminate the vault door in that the battery of spotlights may shine directly into the eyes of bank customers moving in the bank adjacent the vault door, which can be extremely annoying or harmful.

Finally, the problem is complicated further where all of the difficulties indicated are involved and Where colored lighting is desired.

Accordingly, it is a general object of the present invention to provide new means and procedures for the bright and uniform illumination of highly-polished surfaces of large-sized objects with colored light.

Furthermore, it is an object of the present invention to provide new means and procedures for color lighting such large-sized objects with the objects oriented or located generally in a vertical position.

Also, it is an object of the present invention to provide new means and procedures for the bright and uniform color lighting of rectangular vertically-located, highlypolished surfaces.

Moreover, it is an object of the present invention to provide new means and procedures for the bright and uniform color lighting of large-sized highly-polished objects without interference from or interruption by the movement of persons or other objects adjacent the illuminated area, and without projecting annoying light beams into the eyes of individuals moving adjacent the illuminated area.

Also, it is an object of the present invention to provide new means and procedures for the bright and uniform colored lighting of areas so extensive as to require a plurality of light source units while avoiding non-uniform spot illumination originating from the several light sources.

In addition, it is an object of the present invention to provide new means and procedures for the colored lighting of exposed highly-polished surfaces of massive bank vault doors in a pleasing and attractive manner without the presence of unsightly lighting equipment in the vicinity of the vault door.

Finally, it is an object of the present invention to provide new color lighting constructions and procedures which eliminate the difi'iculties described, which are simple, effective and reliable in operation requiring only usual lighting fixture lamp replacements from time to time, which may be readily installed and easily maintained and repaired, and which satisfy needs existing in the art.

These and other objects and advantages apparent to those skilled in the art from the following description and claims may be obtained, the stated results achieved, and the described difiiculties overcome, by the apparatus, combinations, parts, elements, subcombinations, arrangements, constructions, and relationship and mounting of components, and by the procedures, methods, steps and operations which comprise the present invention, the nature of which are set forth in the following general statements, a preferred embodiment in which-illustrative of the best mode in which applicants have contemplated applying the principlesis set forth in the following description and shown in the drawings, and which are particularly and distinctly pointed out and set forth in the appended claims forming part hereof.

The nature of one aspect of the discoveries of improved means or constructions for the bright and uniform illumination of highly-polished preferably metal surfaces may be stated in general terms as including, lighting fixture hood means having reflective side and end walls, the side Walls tapering upwardly inwardly toward each other between lower and upper edges, the end walls tapering upwardly inwardly toward each other between lower and upper edges; the lower edges of the side and end walls defining a large rectangular opening; the upper edges of the side and end walls defining a smaller rectangular opening; light coloring and diffusing pane means mounted in the large rectangular hood opening; a series of spaced, fixed-focus, fioodlight means mounted on the hood means at the smaller rectangular hood opening; the floodlight means including elongated lamps; the several elongated lamps in the series of tloodlight means being located in a line parallel with and spaced centrally above the coloring and diffusing pane means and extending lengthwise with respect to said rectangular openings; the planes of the tapering hood side walls intersecting in a line extending parallel with said lamp line and with said coloring and diffusing pane means; and said intersection line being located intermediate said pane means and said lamp line.

The nature of another aspect of the discoveries of the invention include the combination of a vault door and the like having highly-polished, preferably rectangular, generally vertically disposed metal surface means, the surface means polish comprising horizontally disposed minutely defined polish lines; and lighting fixture means for the uniform colored illumination of said polished surface means disposed above and offset from the polished door surface means; the lighting fixture means including illuminated light coloring and diffusing pane means disposed in a plane normal to the plane of the polished door surface means, light source means in said fixture means beamed through said light coloring and diffusing pane means, an angular reflective hood surrounding the pane means and enclosing and reflecting light beamed from the light source to said pane means, and the diffused colored light beamed through said pane means from said light source means above and offset from said door means reflecting from said horizontally disposed polishing lines to uniformly illuminate said door surface means.

The nature of another aspect of the discoveries of the invention include providing the polished surface of a metal object to be illuminated with laterally disposed polish lines, locating an elongated source of diffused colored light above and offset from said polished surface and extending parallel with the lateral direction of said polished lines, and beaming colored light from said diffused light source along the polished surface to wash successively across the surface and across one after another of the laterally extending polish lines.

By way of example, an embodiment of the improved color lighting arrangements, fixtures, and the means and procedures for accomplishing uniform color lighting of highly-polished surfaces are illustrated diagrammatically in the accompanying drawings forming part hereof in which:

FIGURE 1 is a side elevation, partially in section and diagrammatically illustrating an improved color lighting device or fixture;

FIG. 2 is a bottom plan view, with certain parts broken away, of the improved lighting fixture;

FIG. 3 is an enlarged transverse section looking in the direction of the arrows 33, FIG. 1, showing the improved lighting fixture installed in the ceiling of a room adjacent a bank vault;

FIG. 4 is a diagrammatic front view illustrating a vault door illuminated in color by the improved color lighting fixture;

FIG. 5 is a diagrammatic view similar to FIG. 4, but illustrating the vault door and lighting fixture in section, looking in the direction of the arrows 5-5, FIG. 4; and

FIG. 6 is a greatly enlarged fragmentary section taken on the line 66, FIG. 4, showing the minutely defined polish lines on the vault door.

Similar numerals refer to similar parts throughout the various figures of the drawings.

Although the invention is illustrated and described herein specifically with respect to a vault door, to the color lighting of a highly-polished vault door surface, and to the lighting of an object that is vertically positioned; it is to be understood that the invention and discoveries, are not limited to color lighting vault doors since highly-polished metal surfaces of objects other than vault doors may be color lighted in accordance with the invention, are not limited to the color lighting of rectangular surfaces since highly-polished surfaces shaped other than rectangularly may be color lighted equally as well in accordance with the invention, and are not lim ited to the color lighting of objects which normally are disposed vertically since the principles and discoveries of the invention can be utilized in lighting objects disposed in other positions.

A metal bank vault door to be lighted is generally indicated at 1 in FIGS. 4 and 5 having a rectangular surface 2 of extended area that is highly-polished. The vault door surface 2 is normally disposed in a vertical plane and is exposed adjacent a bank vault wall in banking facilities. The surface 2 may be the outer surface of the vault door when the latter is closed, or it may be the inner surface of the door when open.

Requirements have called for lighting the extended surface 2 with a selected color such as red, or blue, or green. Such color lighting should be as uniform as possible throughout the exposed rectangular surface area.

In accordance with the invention, the high polish applied to the metal vault door surface 2 is achieved by polishing operations which leave any residual polishing lines extending horizontally of the surface 2 as indicated at 3 in FIG. 4. These residual polishing lines, though very small or minute in size, extend entirely across the door surface from top to bottom and appear under magnification as very slight horizontal grooves indicated at 4 in FIG. 6. Contrary to past procedures which have used any desired polishing pattern at random for polishing vault door surfaces, it is critical that the surface to be illuminated be horizontally polished for achieving the objectives of the invention.

An improved lighting fixture generally indicated at 5, as to construction and location, is coordinated with and related specifically to the horizontal polishing of the vault door in achieving the objectives of the invention.

The fixture 5 includes a hood formed by side walls 6 and 7 and end walls 8 and 9. The side walls 6 and 7 taper upwardly, inwardly toward each other between lower corners or edges 10 and upper corners or edges 11. The end walls 8 and 9 taper upwardly, inwardly toward each other between lower corners or edges 12 and upper edges 13. The lower edges 10 and 12 of the side and end walls define a large rectangular opening, and the upper edges 11 and 13 of the side and end walls define a smaller rectangular opening.

The lower edges or corners 10 of the side walls and the lower edges 12 of the end walls may terminate in outturned flanges 14 of desired size and shape adapted for mounting in a usual manner in a recessed electrical fixture box generally indicated at 15 in FIG. 3 which in turn may be mounted in the ceiling 16 of a room in a bank adjacent a vault wall 17 with which the vault door 1 is associated.

A rectangular frame 18 preferably is hinged at 19 to one flange 14 of the hood. The frame 18 preferably supports a pane 20 of light diffusing glass and another pane 21 of glass colored with the color desired to be used in illuminating the vault door 1. Gasket means 22 may surround the edges of the

glass panes

20 and 21 for tightly sealing the glass against the hood flanges 14 when the frame 18 is in closed position. Suitable means indicated generally at 23 is provided for holding the frame 18 in closed position. The fixture 5 when installed in the ceiling 16, has the glass pane 20 and frame 18 flush with the surface of ceiling 16.

In accordance with the invention, a series of

floodlights

24, 25, 26 and 27 are mounted on the hood 5, the several floodlights being spaced lengthwise along the hood at the smaller rectangular hood opening. These floodlights may be mounted on and secured by any suitable means to the hood 5, angular members 28 being provided on the hood 5 to assist in such mounting.

Each of

floodlights

24, 25, 26 and 27 preferably is a fixed-focus, quartz iodine floodlight. Such floodlights normally each have a double parabolic reflector mounted within a box-like housing 29 and lamp sockets for mounting an internally fused quartz iodine incandescent lamp at a location indicated at 30 in the drawings. Such floodlights also normally have several socket locations for the lamps to give several patterns of beam spread from the lamps.

One typical floodlight which may be used is a Stonco Quartz-Line fixed-focus quartz 500 watt floodlight No. 8501. This floodlight with the extra Wide socket setting for the lamp gives a 98 beam spread from the lamp location 30 viewing FIG. 3, and a 118 beam spread from the illustrated lamp location 30 in any one of the

floodlights

24, 25, 26 and 27, viewing FIG. 1.

In accordance with the invention, the several elongated lamps 30 of the series of

floodlights

24, 25, 26 and 27 are located in a line, indicated by dot-dash line 31, parallel with and spaced centrally above the coloring and diffusing

panes

21 and 20. The lamp line 3-1 also extends lengthwise of the fixture 5 and lengthwise of the rectangular openings for-med by the hood.

Floodlights

24, 25, 26 and 27 (FIGS. 1 and 2) have a particular spacing, and this spacing is maintained by spacer pins 32. The space between adjacent floodlights is covered by plates 33 wrapped around the floodlight housings 29 and overlapping the ends of the same at 34 as shown in FIG. 1.

A standard floodlight of the type described normally is closed by a silicon-sealed, heat, shock and impact resistant wrap-around tempered lens. In accordance with the invention, the

floodlights

24, 25, 26 and 27 are modified to omit this lens. However, the outer end of the housing 29 of each of

floodlights

24 and 27 is enclosed by a metal end plate 35 which may be formed integrally with a hood end wall 8 or 9. A portion of each end wall of each fioodlight housing 29 normally is cut away as indicated by the angular line 36 in FIG. 3, and this cutaway portion 36 normally is enclosed by the wraparound ends of the lens, which is omitted in the modified construction.

The hood side and end walls 6, 7, 8 and 9, the plates 33 covering the spaces between adjacent floodlights, and the end plates 35 of the fixture each are preferably formed of polished metal, such as polished stainless steel, to provide reflective charateristics on the inner fixture surfaces of these members.

In accordance with the invention, the planes indicated by dot-

dash lines

37 and 38 of the tapering hood side walls 6 and 7 intersect at a line 39 (indicated by a point in FIG. 3 and by a dot-dash line in FIG. 1) which extends parallel with the lamp line 31 and parallel with the coloring and diffusing

panes

21 and 20, as shown. The hood wall intersection line 39 in accordance with the invention is located intermediate the

panes

20 and 21 and the lamp line 31. Line 39 is spaced from pane 21 4 to 5 times the distance that it is spaced from lamp line 30, and preferably this spacing is 4% to 1 where the included angle 40 between hood side walls 6 and 7 is about 117.5 for best results.

Preferably, the hood end walls 8 and 9 have the same angular relation with one another that is present with respect to the hood side walls 6 and 7, that is, the included angle between a projection of the hood end walls 8 and 9 also is about 1l7.5.

A particular spacing, by spacer pins 32, between the

adjacent floodlights

24, 25, 26 and 27 has been indicated. This spacing in accordance with the invention should be about /5 of the length of each floodlight between spaces for best results.

The light diffusing glass pane 20 is formed of translucent glass material, sometimes called milk glass, and may be a glass product known in the market as Opal glass. Translucent milk glass has excellent diffusing properties in both transmission and reflection of light. The colored glass pane 21 preferably is formed of heat resistant glass, such as Pyrex and colored with the desired coloring material.

Where it is desired to change the color to be used in illuminating the object or vault door 1, it is only necessary to open the frame 18 on its hinge 19 and substitute a differently colored pane of glass 21.

A further modification of standard floodlights in mak ing the improved lighting fixture, in addition to removal of the usual wrap-around lenses, is the provision of openings 41 in housing 29 for ventilation or circulation of air within the housing to cool the reflectors and lamps. The hinged mounting 19 of frame 18 also enables the frame to be opened to permit lamps 30 to be changed whenever they fail or burn out.

The improved fixture 5 in operation functions somewhat in the manner presently to be described. Light beams emanating from the fixed-focus quartz iodine lamps, which give very intense light, pass through and are colored by color pane 20 and are in part reflected and in part absorbed and diffused by and transmitted through the milk glass of diffusing panel 20. The reflected light travels back and forth within the hood between the reflecting surfaces of

hood members

6, 7, 8, 9, 33 and 35 and the pane 20, and some of this reflected light is absorbed and diffused by and transmitted through the diffusing pane 20.

We have discovered that with the relationships described, diffused light beamed from the exterior of difl'using and

coloring panes

20 and 21 is of uniform intensity throughout its beam spread notwithstanding that the beam spread of any one of the floodlights is smaller thanthat of the resultant fixture 5, and that the light source constitutes a number of spaced intensely brilliant elongated lamps 30.

In accordance with the invention, fixture 5 is mounted in the ceiling of a room with the fixture above and offset laterally from the surface 2 of the vault door 1 to be illuminated (FIG. 5) and with the length of the fixture spanning the width of the door (FIG. 4).

Light beams emanating from the fixture have a beam spread somewhat diagrammatically illustrated at 42 in FIGS. 4 and 5 extending downward from the fixture 5 located above and offset from the door surface 2. This beam spread of colored li ht washes downwardly along the surface 2 of the vault door 1 and reflects from the horizontally disposed polishing lines 4 to uniformly illuminate the door surface throughout its extent. Tests have established the intensity of colored lighting in zones of the door surface 2 adjacent the floor 43 to be only a few foot-candles less than the intensity of lighting of the door surface adjacent the ceiling 16.

The spacing 32 between floodlights 24 to 27 has been indicated as being important and about /5 of the length of each fixture viewing FIG. 1. Tests have determined that if this spacing is greater, black lines appear on the door being illuminated. If the spacing is less, lighting efficiency is lost and more floodlights would be required than necessary.

The location of the line of intersection 39 between the angular hood side walls 6 and 7, with respect to the lamp line 31 and the diffusing and coloring panes '20 and 21 has been indicate-d as being important. This line of intersection 39 must be located intermediate the lamps 30 and panes 2ll21 to allow for the proper angle of reflection of the light from the lighting fixture to evenly wash the vault door. It has been discovered further that the distance that the lamps 30 are located from the diffusing and

coloring panes

20 and 21 is related to and interdependent upon the angularity of the hood walls 6 and 7 and the included angle 40 therebetween. If the distance relation to this angle, indicated as preferably being about 117.5 is substantially greater or less, or the angle changed without a related distance change, the colored light does not evenly wash the door. With a 117.S angle, the spacing of lamps 36 from pane 20 should be about 6 to 6 /2" with the width of the pane opening about 16 /4" to 17".

As indicated, the lighting fixture 5 located in a ceiling above and offset from the vault door to be illuminated in color, has the light coloring and diffusing panes 20 oriented in a plane normal to the plane of the polished door surface. This arrangement, together with the angular reflective hood surrounding the coloring and diffusing panes and enclosing and reflecting light beamed to said panes from the several light source lamps 30, produces uniform diffused colored light beamed from the lower face of the diffusing and

coloring panes

20 and 21 and uniform lighting of the vault door surface 2.

In effect, the improved lighting fixture construction takes intense light from a number of separate sources and mixes and combines and colors and diffuses the light beamed from such sources to provide a resulting beam spread of uniform intensity throughout from the diffusing and coloring panes which can illuminate in color highlypolished surfaces without bright spots.

The length of the fixture 5 may be increased by adding floodlights in order that the fixture can span a wider door or area than illustrated. In adding floodlights, the relationships indicated are maintained, and the resulting uniform intensity colored light beamed from the diffusing and coloring panes is maintained in the longer fixture.

Although the polished surface 2 is illuminated uniformly throughout its extent by the reflection of the colored light from the diffused light source washed successively across one after another of the laterally extending polished lines on the door surface, wall areas adjacent the door surface and the fioor area beneath the fixture is not illuminated with colored light to any con siderable degree or extent.

The use of the improved lighting fixture 5 for the colored illumination of a vault door has been described and illustrated with respect to illuminating either the outer surface of a door 1 when closed or the inner surface of the door when open. Where it is desired to illuminate the surfaces of the door in both the open and closed positions, two fixtures 5 would be mounted in the ceiling, one spanning the location of the door when open and the other spanning the location of the door when closed.

The improved construction enables the uniform illumination of highly-polished metal surfaces without interference from persons, for instance, that may be moving in the vicinity of the surface to be illuminated and without projecting light beams in lateral directions toward the eyes of passersby.

Furthermore, the improved construction, arrangement and procedure enables colored lighting of highly-polished surfaces, large in area and located in a vertical position with uniformity and without varying and bright-spot illumination characteristic of normal spotlight lighting.

Accordingly, the present invention provides new means and procedures for the bright and uniform color lighting of highly-polished surfaces, avoiding the difliculties heretofore encountered and achieving the stated objects in a simple manner; and provides devices and procedures which solve problems that have existed in the art.

In the foregoing description, certain terms have been used for brevity, clearness and understanding; but no unnecessary limitations are to be implied therefrom beyond the requirements of the prior art, because such terms are used for descriptive purposes and are intended to be broadly construed.

Moreover, the description and illustration of the invention is by way of example and the scope of the invention is not limited to the exact details illustrated and described because these may be varied within the limitations indicated without departing from the fundamental principles of the invention.

Having now described the features, discoveries and principles of the invention, the assembly and use and characteristics of an improved lighting fixture, and the advantageous, new and useful results obtained, the new and useful discoveries, principles, apparatus, combinations, parts, elements, arrangements, constructions, relationships, procedures and steps, and mechanical equivalents obvious to those skilled in the art are set forth in the appended claims.

We claim:

1. The combination of a metal vault door and the like having a highly-polished generally vertically disposed metal surface, the surface polish comprising horizontally disposed minutely defined polish lines; and lighting fixture means for the uniform colored illumination of said polished surface disposed above and offset from the polished door surface; the fixture means including light diffusing and coloring pane means disposed in a plane normal to the plane of the polished door surface, the pane means having side edges, a plurality of light source devices beamed through said diffusing and coloring pane means, a refiective hood having angularly arranged reflective walls extending from the side edges of the pane means to the light source devices and enclosing and reflecting light beamed to said pane means from the several light source devices, and the reflective hood walls and diffusing and coloring pane means beaming uniformly diffused colored light downwardly angularly toward the horizontally disposed metal surface polish lines, whereby the beamed colored light is reflected from the polish lines and uniformly illuminates the door surface.

2. The construction defined in claim 1 in which the light source devices each are fixed-focus fioodlights.

3. The construction defined in claim it in which each light source device includes an elongated lamp, in which the pane means are elongated, and in which the elongated lamps of the several light source devices are spaced apart and are aligned in a direction extending longitudinally of and parallel with the elongated pane means.

4. The construction defined in claim 1, in which the angularly arranged refiective hood walls, the pane means and the several light source devices are so located and arranged with respect to one another that light beamed from the several light source devices is refiectively mixed and combined to produce equalized intensity throughout the diffused colored light beamed from the diffusing and coloring pane means toward the horizontally disposed metal surface polish lines.

5. Lighting fixture construction for the bright and uniform color illumination of highly-polished metal surfaces including hood means having angularly arranged refiective side and end walls tapering upwardly inwardly toward each other between lower and upper edges, the lower edges defining a large and the upper edges defining a small rectangular opening, light coloring and diffusing pane means at the large rectangular opening; a series of fixedfocus floodlights mounted on the hood means at the small rectangular opening, the fioodlights each including an elongated lamp; the several lamps being aligned, parallel with and spaced above said pane means and extending lengthwise With respect to said rectangular openings; and the planes of the hood side walls intersecting in a line parallel with said aligned lamps and being located intermediate the pane means and aligned lamps.

6. The construction defined in claim 5 in which the fioodlights in the series are spaced apart a distance between adjacent fioodlights equal to one-fifth of the length of any fioodlight.

7. The construction defined in claim 5 in which the aligned lamps are spaced centrally above the pane means.

8. The construction defined in claim 5 in which the hood side wall intersecting line intermediate the pane means and aligned lamps is spaced at distance respectively from the pane means and lamps in the ratio of between 4 and 5 to l.

9. The construction defined in claim 8 in which the ratio is 4 /2 to 1, and the included angle between the planes of the intersecting hood side walls is 117.5

19. The construction defined in claim 5 in which the included angle between the planes of the intersecting hood side walls is 117.5 and in which the aligned lamps are spaced from 6 to 6 /2 inches from the pane means.

11. The construction defined in claim 5 in which the aligned lamps are spaced from 6 to 6 /2 inches from the pane means, in which the large rectangular hood opening is from 16% to 17 inches wide, and in which the line of intersection between the planes of the hood side walls is spaced a distance respectively from the pane means and lamps in the ratio of 4 /2 to 1.

(References on following page) References Cited by the Examiner UNITED STATES PATENTS Ienks 240-l.1 St. Clair 2401.1 Clausen -240-2 X Brandt 24046.59 X Abernathy 2401.1 X Phillips 24078 X 10 12/ 1952 Liley 2402 X 12/ 1960 Seidman 2405 1.1 1 8/ 1961 Miskella 240--ll.4 6/1963 Gamain 2403.1 X

FOREIGN PATENTS 10/1938 Great Britain.

NORTON ANSHER, Primary Examiner.

Claims

1. THE COMBINATION OF A METAL VAULT DOOR AND THE LIKE HAVING A HIGHLY-POLISHED GENERALLY VERTICALLY DISPOSED METAL SURFACE, THE SURFACE POLISH COMPRISING HORIZONTALLY DISPOSED MINUTELY DEFINED POLISH LINES; AND LIGHTING FIXTURE MEANS FOR THE UNIFORM COLORED ILLUMINATION OF SAID POLISHED SURFACE DISPOSED ABOVE AND OFFSET FROM THE POLISHED DOOR SURFACE; THE FIXTURE MEANS INCLUDING LIGHT DIFFUSING AND COLORING PANE MEANS DISPOSED IN A PLANE NORMAL TO THE PLANE OF THE POLISHED DOOR SURFACE, THE PANE MEANS HAVING SIDE EDGES, A PLURALITY OF LIGHT SOURCE DEVICES BEAMED THROUGH SAID DIFFUSING AND COLORING PANE MEANS, A REFLECTIVE HOOD HAVING ANGULARLY ARRANGED REFLECTIVE WALLS EXTENDING FROM THE SIDE EDGES OF THE PANE MEANS TO THE LIGHT SOURCE DEVICES AND ENCLOSING AND REFLECTING LIGHT BEAMED TO SAID PANE MEANS FROM THE SEVERAL LIGHT SOURCE DEVICES, AND THE REFLECTIVE HOOD WALLS AND DIFFUSING AND COLORING PANE MEANS BEAMING UNIFORMLY DIFFUSED COLORED LIGHT DOWNWARDLY ANGULARLY TOWARD THE HORIZONTALLY DISPOSED METAL SURFACE POLISH LINES, WHEREBY THE BEAMED COLORED LIGHT IS REFLECTED FROM THE POLISH LINES AND UNIFORMLY ILLUMINATES THE DOOR SURFACE.