Patent Publication Number: US-10323807-B2

Title: Method of generating a light output and an elongate cornice lamp for the implementation thereof

Description:
The provided method and device relate to the field of lighting engineering and are intended for using as a Method of generating a light flow and as an elongate cornice lamp for the implementation in office, trade, sport, industrial and other premises, including premises with high humidity and dustiness. 
     RELATED ART 
     In order to illustrate the known state of the art in this field the objects protected by the RF patents for inventions No. 2240470, 24099162, 473007, 2502013, 2506492, 2509952 as well as RF patents for utility models No. 2101 147 and No. 154093 could be mentioned. The disadvantages of the known methods and devices are, in particular, their overheating during operation and limited capabilities of the light output control. The closest analog (prototype) to the claimed technical solution for the terms of essential features is the method and device disclosed in the above mentioned description of the patent for utility model No. 154093. 
     The problem solved by the claimed objects, is in improvement of known methods and devices in order to eliminate their disadvantages and achieve technical result in regard to the expansion of capabilities of a lamp radiation direction diagram control with high uniformity of illumination. 
    
    
     
       BRIEF DESCRIPTION OF DRAWINGS AND DESIGNATIONS 
       The mentioned advantageous effect is achieved via the provided method and the device, the distinctive features of which are schematically shown on the following figures of drawings. 
         1 . A general view of a lamp with a LED strip on a main arrangement plate and its cross-section. 
         2 . A general view of the lamp with the LED strip on a light output reflection plate and its cross-section. 
         3 . An illustration of the preferable lamp mounting. 
         4 . A diagram of the generating light output without usage of the LED strip on the reflecting surface in the lamp. 
         5 . A diagram of the generating a light output with usage of the LED strip on the reflecting surface in the lamp. 
         6 . An illustration of the direct light output impact without protection of the human eye field of vision. 
         7 . An illustration of the direct light output impact with the protective plate for limitation of the human eye field of vision. 
         8 . An illustration of generation of the uniform light output with usage of the LEDs with different lens types: A without lenses, B with narrow-range lenses, C combination on one line of the LEDs with narrow-range and wide-range lenses. 
     
    
    
     DESIGNATED ON THE FIGURES 
     
         
         “a”—the angle between the main arrangement plate of the LED strips forming light output and the mounting plate. 
         “b”—the angle between the main arrangement plate of the LED strips forming light output and the light output reflection plate. 
         “c”—the angle of transformation via lenses of spatial distribution of the light output. 
       
    
     The main structural assemblies and specific characteristics of the claimed method and device are identified via the list of their designations on the mentioned figures, namely:
       1 . A lamp.     2 . A profiled lamp housing.     3 . A main arrangement plate of the LED strips, forming a light output.     4 . A light output reflection plate.     5 . A light output limitation plate.     6 . A lamp housing mounting plate.     7 . A load-carrying profiled housing area.     8 . A LED strip.     9 . LEDs.     10 . Lenses for transformation of the spatial distribution of the light output.     11 . A Power supply and a control unit.     12 . A body cavity for mounting of power supply and a control unit.     13 . Additional housing cavity for arrangement of electrical wiring.     14 . Electrical wiring.     15 . Additional wires, connecting LED strip and the lamp power supply unit.     16 . An opening for wires in a light output reflection plate.     17 . An additional LED strip for generation of color or other kind of the lighting effect, for example, soporific.     18 . A control unit for the additional LED strip.     19 . A wall.     20 . A ceiling.     21 . The distance from the ceiling to the lamp.     22 . A multiple-core power wire, providing to all possible units of the elongate lamp power supply from one point.     23 . Light rays from the LED and reflected from the ceiling.     24 . Lamps without a protective light output limitation plate.     25 . Light rays from the additional LEDs on the reflection plate and reflected from the wall and the ceiling.     26 . Dark areas between the LEDs.     27 . A stylized image of the human eye.     28 . The LEDs without lenses.     29 . The LEDs with lenses.     30 . Wide-angle polar plots of the light radiation direction.     31 . Narrow-angle polar plots of the light radiation direction.   

     DETAILED DESCRIPTION AND EXAMPLES OF EMBODIMENTS 
     When describing in details the method and device ( FIG. 1-8 ), it is inadvisable to fix on their technical and structural features known from the published sources, but only their essential features should be characterized in more details. To achieve the mentioned advantageous effect the method of generating a light output is provided, according to which the LED  9  quantity is chosen within the range of 10-10 5  pieces, they are mounted on the LED strips  8 , which are chosen within the range of 1-10 3  pieces, and they are connected to the power supply and the light output control unit  11 . The LED strips  8  are secured on the main arrangement plates  3  in quantity of 1-120 and on the additional arrangement plates in quantity of 1-120, as well as on the light output reflection plates  4  in quantity 1-120. The angles of the slope to the horizon of the plates  3  and  4  with the LED strips  8  mounted on them are chosen within the range of 5° to 85°, and via assembly of the mounted LEDs  9  suitable light beams combination is generated. 
     Luminous intensity in n 1  part of light beams, chosen in relation to their general quantity n within the range of 1≤(n 1 +n)/n≤2, is controlled by changing of the electric power, input to the LEDs  9  within the range of 10-100% of its maximum value. The light spatial distribution angles in n 2  light beams, chosen in relation to their general quantity n within the range of 1≤(n 2 +n)/n≤2, are transformed by the additional lenses  10  within the range of 7°-120°. A light output generated by the light beams combination is diffused by the reflecting surfaces chosen in quantity of 1-120, for example, the plates  4 , and its distribution in undesirable directions is overlapped by the limiting surfaces chosen in quantity of 1-120, for example, the plates  5 . Also a light output is redirected by the reflecting surfaces chosen in quantity of 1-120, for example, the plates  4 , polar plots of light distribution of light beams of LEDs  9  are selected and adjusted among others with the additional lenses  10 , achieving non-uniformity of the illumination by the generated light output, not exceeding 5-30% of its maximum value. 
     Mentioned advantageous effect is also achieved by the provided elongate cornice lamp for the implementation of the claimed method, consisting of an elongate form of rigidly fixed to each other: a main arrangement plate  3  of the LED strips  8  with the LEDs  9 , forming a light output, a light output reflection plate  4 , a light output limitation plate  5 , a mounting plate  6  and a load-carrying profiled housing area  7 . The plates  3 ,  4  and  6  as well as the area  7  form a cavity  12  in a housing  2  for mounting of a power supply and a lamp control unit  11  in it. 
     Herewith one end of the profiled housing area  7  is rigidly connected with the end of mounting plate  6  and the other end is rigidly connected with the light output reflection plate&#39;s  4  end and the light output limitation plate&#39;s  5  end. Therewith the main arrangement plate  3  of the LED strips  8  forming a light output is mounted at an angle “a” within the range of 7°≤a≤70° to the mounting plate  6  and is mounted at an angle “b” within the range of 80°≤b≤150° to the light output reflection plate  4 . 
     To make structural features of the developed lamp  1  more specific it is expediently to mention that the rigid attachment of the main arrangement plate  3  for the LED strips  8  forming a light output, a light output reflection plate  4 , a light output limitation plate  5 , a mounting plate  6  and a load-carrying profiled housing  2  area  7  may be formed by punching or extrusion from a monolithic work piece. The quantity of the LED strips  8  with the LEDs  9  mounted on the main arrangement plate of a lamp may be selected within the range of 1-120. An additional quantity of the LED strips  8  with the LEDs  9  may be arranged on the light output reflection plate  4 , selected within the range of 1-120. 
     In the lamp  1  part n 1  of the LEDs  9 , selected in relation to their general quantity n within the range of 1≤(n 1 +n)/n≤2, may be equipped with the additional lenses  10  for the transformation of the light output spatial distribution. Herewith the part n 2  of the lenses  10  selected in relation to their general quantity n 1  within the range of 1≤(n 2 +n 1 )/n 1 ≤2 may be performed with the angle “c” of transformation of the light output spatial distribution within the range of 7°≤c≤30°. The part n 3  of the lenses  10  selected in relation to their general quantity n 1  within the range of 1≤(n 3 +n 1 )/n 1 ≤2 may be performed with the angle “c” of the transformation of the light output spatial distribution within the range of 10°≤c≤45°, the part n 4  of the lenses  10  selected in relation to their general quantity n 1  within the range of 1≤(n 4 +n 1 )/n 1 ≤2 may be performed with the angle “c” of the transformation of the light output spatial distribution within the range of 15°≤c≤60°, and part n 5  of the lenses  10  selected in relation to their general quantity n 1  within the range of 1≤(n 5 +n 1 )/n 1 ≤2 may be performed with the angle “c” of the transformation of the light output spatial distribution within the range of 10°≤c≤120°. 
     The variability of the usage of the claimed method features of the lamp structural elements at different combinations of their forms, sizes and quantities mentioned above for the adjustment of the wide-angle  30  and the narrow-angle  31  plots of direction and the angular distribution of the light beams  23 ,  25  and light beams generated by them illustrates the structural design and functioning of the lamp, what is clearly shown on the  FIG. 1-8 . On the  FIG. 1 , in particular, a variant of the general view of a lamp with the LED strip  8  on the main arrangement plate  3  and its cross-section with the power supply and control unit  11 , mounted in the cavity  12  of the housing  2  of the lamp  1 , is shown. An additional housing cavity  17  for the arrangement of the electrical wiring  14  is arranged in the bottom part of the housing  2 . Also, for example, additional wires  15 , connecting the LED strips  8  and the power supply unit  11  of the lamp  1  may be mounted through the opening  16  in the light output reflection plate  4 . 
     On the  FIG. 2  a variant of the general view of the lamp  1  with the additional LED strip  17  on the light output reflection plate  4  and its cross-section are is shown. The additional control unit  18  is provided for the additional LED strip  17 . An illustration of the preferable lamp mounting in its cross-section is shown on the  FIG. 3 . The lamp is fixed with the mounting plate  6  on the wall  19  within a distance  21  from the ceiling  20 . In the bottom part of the lamp housing a multiple-core power wire  22  is shown to which provides current, providing power supply for the whole system of the LEDs  9  from one point, to all possible units of the elongate lamp. 
     On the  FIG. 4  a scheme of generating a light output without usage in the lamp of the LED strip on the reflecting surface is shown. Here the light beams  23  from the LED and reflected from the reflection surface are shown, for example, from the ceiling. Also the dark areas  26  between the LEDs are shown, that are eliminated, as shown on the  FIG. 5 , by using of the LED light beams  23 , mounted on their main arrangement plate, and the beams  25  from the additional LEDs on the reflection plate as well as the beams  23  and  25 , reflected from the wall and the ceiling. 
     On the  FIG. 6  an illustration of the impact of the direct light output from the LEDs without protection of the human eye  27  field of vision from the lamp  24  without the protective plate for limitation of the light output is shown. On the  FIG. 7  an illustration of the elimination of the impact of the direct light output from the LEDs and only the reflected light output with protection of the human eye  27  field of vision by the protective plate  5  for limitation of the light beams is shown. An illustration of the generation of the uniform light output with the usage of the LEDs  28  with different lens types and without them is provided on the  FIG. 8 : A—without lenses, B—with narrow-range lenses  29 , C—a combination on the one line of LEDs with narrow-range and wide-range lenses. As a result the wide-angle  30  and the narrow-angle  31  polar plots of the light radiation direction are generated with the angle “c” of a transformation by the light output spacious distribution lenses, selected within the range mentioned above, which is shown on the  FIG. 8 . 
     As a result, the light output generated by the set of light beams is distributed by the chosen reflecting surfaces and its distribution in undesirable directions is overlapped by limiting surfaces and redirected by reflecting surfaces. Herewith polar plots of the light distribution of the light beams of the LEDs are selected and adjusted among others with additional lenses, and controlled as well, achieving non-uniformity of the illumination by the generated light output, not exceeding 5-30% of its maximum value. 
     It should be noted that principle of unity of invention is fulfilled in the application as the provided method and the lamp have the same name, serve the same goal, provide an achievement of the same advantageous effect together and are connected by a single inventive conception, characterized by the claims. Herewith the legal protection conception is based on the fact that continuity and interconnection of the provided objects as well as assumed variability of the implementation of specific essential features or their combinations predetermine, among others, non-traditional formulation character of several features. For example, lamp structural features are shown not only by the characteristic of its assemblies and their structural interconnections, but also by, in particular, the angles “c” of the transformation of a spacious distribution of the light output within selected limits. 
     INDUSTRIAL APPLICABILITY AND ACHIEVEMENT OF THE TECHNICAL RESULT 
     Therefore, as seen from above, the features mentioned in the claims are essential and purposefully interconnected with each other with generation of their steady combination necessary and sufficient for an achievement of the stated effect of the invention. An achievable technical result, as it was shown by experimental data, can be implemented only by an interconnected combination of the all essential features of the claimed objects, shown in the claims, at any of their values, covered by the claimed claims and satisfying the claimed features. The claimed essential distinctive features were obtained on the basis of creative processing of the conducted studies and experiments, analysis and generalization of them and known from published sources of data, interconnected by the conditions of achieving the technical result specified in the application and as well as using inventive intuition. 
     The proposed method and the lamp for its implementation do not contain features that cannot be implemented by known technologies and devices. Conformity to the criterion of “industrial applicability” the proposed objects is also proved by absence in the claims of any features that are practically difficult to implement in an industrial scale. 
     Among other advantages of the described lamp implementing the claimed method it could be noted the relatively low manufacturing cost and attractive ergonomic indicators.