DESC:FIELD OF THE INVENTION

The present disclosure relates to a lighting apparatus and more particularly, relates to a lighting apparatus with tilt adjustable frame.

BACKGROUND

Large sized lighting devices are used to illuminate large space. One type of large sized lighting devices includes a stadium light that is employed to illuminate a stadium, such as a cricket stadium. The stadium light generally includes a base mounted on a pole and a frame mounted on the base. The frame further includes a plurality of light emitting panels, such as light bulbs arranged in an array within the frame to provide the illumination. Generally, the frame is fastened to the base using a pair of fasteners and the base is further fastened to the pole.

Conventional stadium lights generally have large size and therefore heavy-duty fasteners are needed to mount the base to the pole. The use of heavy-duty fasteners increases an overall weight of the stadium light. Moreover, the conventionally stadium light lacks provisions to incline the frame relative to the base to install the stadium light at an angle relative to the pole. As a result, additional inserts are needed to incline the base and frame relative to the pole to achieve the inclined angle which further increases an overall weight of the stadium light.

SUMMARY

This summary is provided to introduce a selection of concepts, in a simplified format, that are further described in the detailed description of the invention. This summary is neither intended to identify key or essential inventive concepts of the invention and nor is it intended for determining the scope of the invention.

In an embodiment, a lighting apparatus is disclosed that includes a base including a pair of mounting arms, each mounting arm comprises a first pin and a second pin. The lighting apparatus also includes a frame disposed between the pair of mounting arms, and includes a pair of mounting sides, such that a mounting side of the pair of mounting arms is adjacent to respective mounting arm. Each mounting side includes a first slot adapted to receive the first pin of a respective mounting arm, securing the frame to the base and a second slot adapted to receive the second pin of the respective mounting arm, to adjust an angle of inclination of the frame relative to the base.

According to the present disclosure, the first slot and the second slot allows the frame to be secured and tilted relative to the base without the use of additional inserts. Moreover, the second slot defines a range of adjustment of the angle of inclination. Moreover, the holes are formed at an offset from the centre of the mounting side which ensures better securing of the frame to the base.

To further clarify advantages and features of the present invention, a more particular description of the invention will be rendered by reference to specific embodiments thereof, which is illustrated in the appended drawings. It is appreciated that these drawings depict only typical embodiments of the invention and are therefore not to be considered limiting of its scope. The invention will be described and explained with additional specificity and detail with the accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

These and other features, aspects, and advantages of the present invention will become better understood when the following detailed description is read with reference to the accompanying drawings in which like characters represent like parts throughout the drawings, wherein:

Figure 1 illustrates a front view of a lighting apparatus with a plurality of lighting units, according to an embodiment of the present disclosure;
Figure 2 illustrates a side view of the lighting apparatus showing a stepped profile of a frame of the lighting apparatus, according to an embodiment of the present disclosure;
Figure 3 illustrates a perspective front view of the lighting apparatus, according to an embodiment of the present disclosure;
Figure 4 illustrates a perspective rear view of the lighting apparatus, according to an embodiment of the present disclosure;
Figure 5 illustrates an enhanced view of a portion of the frame showing the pins and the slots, according to an embodiment of the present disclosure;
Figure 6 illustrates a front-perspective view of the plurality of lighting units, according to an embodiment of the present disclosure; and
Figure 7 illustrates a rear perspective view of the plurality of lighting units, according to an embodiment of the present disclosure.

Further, skilled artisans will appreciate that elements in the drawings are illustrated for simplicity and may not have necessarily been drawn to scale. Furthermore, in terms of the construction of the device, one or more components of the device may have been represented in the drawings by conventional symbols, and the drawings may show only those specific details that are pertinent to understanding the embodiments of the present invention so as not to obscure the drawings with details that will be readily apparent to those of ordinary skill in the art having benefit of the description herein.

DETAILED DESCRIPTION OF FIGURES

For the purpose of promoting an understanding of the principles of the invention, reference will now be made to the embodiment illustrated in the drawings and specific language will be used to describe the same. It will nevertheless be understood that no limitation of the scope of the invention is thereby intended, such alterations and further modifications in the illustrated system, and such further applications of the principles of the invention as illustrated therein being contemplated as would normally occur to one skilled in the art to which the invention relates. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skilled in the art to which invention belongs. The system and examples provided herein are illustrative only and not intended to be limiting.

For example, the term “some” as used herein may be understood as “none” or “one” or “more than one” or “all.” Therefore, the terms “none,” “one,” “more than one,” “more than one, but not all” or “all” would fall under the definition of “some.” It should be appreciated by a person skilled in the art that the terminology and structure employed herein is for describing, teaching, and illuminating some embodiments and their specific features and elements and therefore, should not be construed to limit, restrict, or reduce the spirit and scope of the present disclosure in any way.

For example, any terms used herein such as, “includes,” “comprises,” “has,” “consists,” and similar grammatical variants do not specify an exact limitation or restriction, and certainly do not exclude the possible addition of one or more features or elements, unless otherwise stated. Further, such terms must not be taken to exclude the possible removal of one or more of the listed features and elements, unless otherwise stated, for example, by using the limiting language including, but not limited to, “must comprise” or “needs to include.”

Whether or not a certain feature or element was limited to being used only once, it may still be referred to as “one or more features” or “one or more elements” or “at least one feature” or “at least one element.” Furthermore, the use of the terms “one or more” or “at least one” feature or element do not preclude there being none of that feature or element, unless otherwise specified by limiting language including, but not limited to, “there needs to be one or more...” or “one or more elements is required.”

Unless otherwise defined, all terms and especially any technical and/or scientific terms, used herein may be taken to have the same meaning as commonly understood by a person ordinarily skilled in the art.

Reference is made herein to some “embodiments.” It should be understood that an embodiment is an example of a possible implementation of any features and/or elements of the present disclosure. Some embodiments have been described for the purpose of explaining one or more of the potential ways in which the specific features and/or elements of the proposed disclosure fulfil the requirements of uniqueness, utility, and non-obviousness.

Use of the phrases and/or terms including, but not limited to, “a first embodiment,” “a further embodiment,” “an alternate embodiment,” “one embodiment,” “an embodiment,” “multiple embodiments,” “some embodiments,” “other embodiments,” “further embodiment”, “furthermore embodiment”, “additional embodiment” or other variants thereof do not necessarily refer to the same embodiments. Unless otherwise specified, one or more particular features and/or elements described in connection with one or more embodiments may be found in one embodiment, or may be found in more than one embodiment, or may be found in all embodiments, or may be found in no embodiments. Although one or more features and/or elements may be described herein in the context of only a single embodiment, or in the context of more than one embodiment, or in the context of all embodiments, the features and/or elements may instead be provided separately or in any appropriate combination or not at all. Conversely, any features and/or elements described in the context of separate embodiments may alternatively be realized as existing together in the context of a single embodiment.

Any particular and all details set forth herein are used in the context of some embodiments and therefore should not necessarily be taken as limiting factors to the proposed disclosure.

Embodiments of the present invention will be described below in detail with reference to the accompanying drawings.

Figures 1 to 4 illustrate different aspects of a lighting apparatus 100, according to an embodiment of the present disclosure. Specifically, Figure 1 illustrates a front view of the lighting apparatus 100 whereas Figure 2 illustrates a side view of the lighting apparatus 100. Figure 3 illustrates a perspective front view of the lighting apparatus 100 whereas Figure 4 illustrates a perspective rear view of the lighting apparatus 100. The lighting apparatus 100 may be a stadium light adapted to illuminate a large ground, such as a cricket ground, or football ground, among other examples. The lighting apparatus 100 of the present disclosure is lightweight and compact and is designed to output a predefined amount of light. Further, the lighting apparatus 100 may effectively dissipate the generated heat thereby making the lighting apparatus 100 efficient. Furthermore, the lighting apparatus 100 may be easily secured to a pole and may be tilted relative to the pole without the use of additional inserts. The lighting apparatus 100 may include, but is not limited to, a base 102, a frame 104, and a plurality of lighting units 106, details of each component will be explained later.

The base 102 is adapted to install the lighting apparatus 100 to a pole or a mast (not shown). The base 102 may either be made as a single-piece component or may be formed by welding different parts together. The base 102 may include a base portion 108 that may be mounted on the pole. The base portion 108 may include a pair of mounting holes 110 that may receive fasteners to secure the base 102 to the pole. In addition, the base portion 108 may also include a central alignment hole 112 that receives a bolt on the pole that not only secures the base portion 108 to the pole but also aligns the base portion 108 relative to the pole.

The base 102 may also include a pair of mounting arms 114 that may extend from either end of the base portion 108. Further, each mounting arm 114 extends at an angle ‘A’ relative to the base portion 108. Furthermore, each mounting arm 114 may include a first portion 114A that extends outwards from the base portion 108 and a second portion 114B that extends from the first portion 114A vertically upward. The second portion 114B may include a pair of holes that are formed at an offset from each other. Further, the holes may receive a first pin 116A and a second pin 116B that may allow the installation and alignment of the frame 104 relative to the base 102. A manner in which the frame 104 is installed is explained in later embodiments.

The frame 104 is the largest component of the lighting apparatus 100 and may be installed to the base 102. The frame 104 may include a pair of mounting sides 118, such that a gap between the mounting sides 118 may define a width of the frame 104. Further, each mounting side 118 may also include a first slot 120A and a second slot 120B. The first slot 120A may receive the first pin 116A of a respective mounting arm 114 to secure the frame 104 to the base 102. Further, the second slot 120B may receive the second pin 116B of the respective mounting arm 114 to adjust an angle of inclination of the frame 104 relative to the base 102. In one example, the first pin 116A and the second pin 116B are fastened to the first slot 120A and the second slot 120B, respectively

Referring to Figure 5 illustrates enhanced views of ‘E1’ and ‘E2’ from Figure 4, according to an embodiment of the present disclosure. The first slot 120A may be formed under the second slot 120B. The first slot 120A, in one example, may just secure the mounting side 118 to the mounting arm 114 whereas the second slot 120B may secure the mounting side 118 to the mounting arm 114 and may adjust an angle of inclination of the frame 104 relative to the base 102. Accordingly, the second slot 120B may be a curved oblong slot, such that ends 122A, 122B of the second slot 120B define a range of adjustments in the angle of inclination. The second slot 120B also limits the pivoting of the frame 104 relative to the base 102 thereby ensuring that an inadvertent pivoting of the frame 104 during the installation thereby preventing safety hazards that otherwise would occur if inadvertent pivoting of the frame 104 is not arrested.

Referring to Figures 2, 3, and 4, the first slot 120A, and the second slot 120B are formed at an offset from the centre of the mounting side 118. Such a configuration reduces inadvertent pivoting of the frame 104. Moreover, the offset allows for easy installation and uninstallation of the frame 104 from the base 102. Further, each mounting side 118 may also have a slanted profile and may form a plurality of holders 124 is formed in such a way that the holders 124 form a stepped profile. The stepped profile is formed in such a way that a topmost holder 124 extends in the forward direction relative to the next below holder 124.

The stepped profile formed by the holders 124 provides various advantages over conventional design. For example, the stepped profile ensures that each lighting unit 106 receives an unimpeded airflow for heat dissipation therefrom. As shown in Figure 2, separate portions of air may enter the holders 124 so that heat dissipation can occur simultaneously and heat air exiting from a holder 124 does not interact with the other holders 124 and therefore allows efficient heat dissipation. In addition, the stepped profile is formed in such a way that consecutive holders 124 have a predetermined gap to allow unimpeded emission of light from the plurality of lighting units 106 in the consecutive holders 124.

In one example, a set of lighting units 106 from the plurality of lighting units 106 is disposed on a holder 124 of the plurality of holders 124. Arrangement of the lighting unit 106 and construction of lighting unit 106 are explained in subsequent embodiments.

Figure 6 illustrates a front perspective view of the plurality of lighting unit 106 whereas Figure 7 illustrates a rear perspective view of the plurality of lighting unit 106, according to an embodiment of the present disclosure. Each lighting unit 106 may include a light source which may include a base plate 602 that, in one example, may be a printed circuit board. The light source may include a plurality of light-emitting diodes (LEDs) 616, which may be mounted on the base plate 602 and may be adapted to emit light. Further, the base plate 602 may include a front face 604A and a rear face 604B opposite to the front face 604A. The base plate 602 may also have a first side 606A and a second side 606B. Further, each lighting unit 106 may also include a cover 608 that may have a flange 610 formed on the periphery of the cover 608. Further, the flange 610 may include a plurality of small holes 610A that allow the cover 608 to be secured to a heat diffuser 612 of the lighting unit 106. The lighting unit 106 may include a gasket 614 that may be sandwiched between the flange 610 and the hear diffuser 612 in order to prevent water and dust from entering the lighting unit 106. In one example, the base plate 602 may be installed to the heat diffuser 612 using a pair of bolts 622.

The heat diffuser 612, in one example, may be adapted to remove heat generated during an operation of the LEDs 616. The heat diffuser 612 may include a heat sink 618 and a plurality of fins 620 that extends from the heat sink 618. Further, each fin 620 may include a first section 620A that may be mounted to the heat sink 618 and a second section 620B may extend from the first section 620A. In one example, the first section 620A, and the second section 620B form an L-shaped profile of the fins 620. The first section 620A may also include a plurality of holes that receive a fastener which secures the first section 620A to the heat sink 618. Further, a joint between the first section 620A and the second section 620B may include a groove that may receive an adjacent open side of the first section 620A to allow a secure connection between adjacent fins 620. Such a configuration allows easy and secure installation of the fins 620.

In one example, the second section 620B of adjacent fins forms a channel that allows air to pass through to absorb so that the second section 620B may efficiently dissipate the heat. Further, the second section 620B may have a length greater than twice the length of the first section 620A. Furthermore, the total surface of the channel may be equal to an area of opposite facing sides of adjacent second section 620B.

The fins 620 are sized in such a way that the amount of greater amount of heat may be dissipated while being compact and lightweight. Accordingly, the fins 620 are sized in such a way that the length of each fin 620 is greater than the first side 606A and the second side 606B of the base plate 602, and a thickness of the fin 620 is up to 1 millimetre (mm). In one example, the thickness of the fin 620 is less than 8 mm. Further, the length of the fin 620 may be equal to the length of the second fin 620.

According to the present disclosure, the size and construction of the fins 620 keep the overall weight of the lighting apparatus 100 less than conventional lighting devices of the same light throughput. Further, the detachable nature of the fins 620 allows for easy installation and easy uninstallation in case of damage to one of the fins 620 without uninstalling the complete lighting unit 106. Moreover, the provision of the first slot 120A and the second slot 120B ensures that the frame 104 may be secured and tilted to change the angle of orientation of the lighting apparatus 100. Moreover, the stepped profile ensures efficient and effective heat dissipation.

While specific language has been used to describe the present disclosure, any limitations arising on account thereto, are not intended. As would be apparent to a person in the art, various working modifications may be made to the method in order to implement the inventive concept as taught herein. The drawings and the foregoing description give examples of embodiments. Those skilled in the art will appreciate that one or more of the described elements may well be combined into a single functional element. Alternatively, certain elements may be split into multiple functional elements. Elements from one embodiment may be added to another embodiment.

CLAIMS:

1. A lighting apparatus (100) comprising:
a base (102) comprising a pair of mounting arms (114), each mounting arm comprises a first pin (116A) and a second pin (116B);
a frame (104) disposed between the pair of mounting arms (114), and comprising a pair of mounting sides (118), wherein a mounting side of the pair of mounting arms (114) is adjacent to respective mounting arm (114), wherein each mounting side (118) comprising:
a first slot (120A) adapted to receive the first pin (116A) of a respective mounting arm, securing the frame (104) to the base (102); and
a second slot (120B) adapted to receive the second pin (116B) of the respective mounting arm, to adjust an angle of inclination of the frame (104) relative to the base (102).

2. The lighting apparatus (100) as claimed in claim 1, wherein the second slot (120B) has a curved oblong profile.

3. The lighting apparatus (100) as claimed in claim 2, wherein opposite ends of the second slot (120B) define a range of the adjustment of angle of inclination.

4. The lighting apparatus (100) as claimed in claim 1, wherein the first pin (116A) and the second pin (116B) are fastened to the first slot (120A) and the second slot (120B), respectively.

5. The lighting apparatus (100) as claimed in claim 1, wherein the first slot (120A) and the second slot (120B) are formed at an offset from a center of the mounting side.

6. The lighting apparatus (100) as claimed in claim 1, wherein the base (102) comprising a plurality of mounting holes adapted to secure the base (102) to a pole.

7. The lighting apparatus (100) as claimed in claim 1, wherein the frame (104) comprises a plurality of holders (124) disposed between the pair of mounting arms (114) to form a step profile.