DESC:FIELD OF THE INVENTION:
The present invention relates to a light emitting device to illuminate any mark and method thereof. The present invention specifically relates to a light emitting device to illuminate standalone letters and/or logo as present on an automobile by utilizing light engine unit. The light emitting device provides homogeneous, uniform, and efficient illumination of mark and/or logo and/or standalone letters.
BACKGROUND OF THE INVENTION:
In general automobile/ vehicle are equipped with a logo or letter that provides easy recognition to passersby towards recognition of automobile manufacturer and/ or type of an automobile. Further, such logo/letter are placed on decklid/hood of an automobile. It is pertinent to note that the letters/logo in are either made up of plastic or metal. Further, such letter/logo are attached mechanically onto automobile’s decklid or hood. Alternatively, letters or logo can also be placed on automobile through glue or double-sided tape i.e. through taping or gluing.
Conventionally, letters or logos have various surface finish (metallization, chrome plating, painting or they are in the original colour of the base material). If the logo or letters are illuminated, there is placed a big plastic panel at the decklid or hood and the plastic panel include the electronics, light sources, attachment and the letters are usually executed by some transparent or translucent windows in the shape of the letters or logo. If letters are standalone, each letter is larger plastics box including the same stuff of that of the overall panel. Further, letter with presence of an island such as “O”, “P”, “R”, and so on causes great trouble. This is because island of letter is part of automobile plastic panel and requires to be in synchronization. This implies that paint or color of island-based letters needs to be same as that of automobile panel. This way it is ensured that letter/logo appears in uniformity in accordance with an automobile panel onto which they are attached.
Further, if standalone letters would be slide from the back side of the decklid or hood, the overall plastics panel would be hidden (invisible), but the trouble with the colour matching of the island and surrounding is still there. Moreover, because the holes or openings for the letters are big, the structural integrity of the decklid or hood sheet metal is influenced (negatively).
Further, there are few specific alphabets that have islands on them. Alternatively, the islands are the depressed and hollow portion present in a few letters such as ‘D’, ‘B’, ‘O’, and so on. In furtherance to this, the manufacturing of this logo requires a process of moulding in a mould wherein molten material is poured into such a mould to provide the specific shape and structure of the logo. During the moulding process, there occurs a time difference in the flow of molten material around a hollow and a non-hollow portion which leads to unevenness and non-uniformity on the surface for specific alphabets/letters which have the presence of depressed or hollow portions. Further, in the alphabets having islands on them, in order to rectify the disconnection of the depressed and hollow portion with the remaining portion, welding is done. This further diminishes the surface quality of the letters which further affects the quality of the logo. In other words, thereby diminishing the overall appearance of the logo and will result in poor-quality finishing.
Further, in case of thin size of the logo, the letter with a depressed and hollow portion will make the logo fragile. Due to this reason, there is an increased chance of engraving a new logo which requires welding of the same on the surface of the vehicle. Thereby diminishing the appearance of the logo and further severely impacts robustness, reliability, and structural integrity of the vehicle.
In addition to this, logo that is formed by combination-based letter, requires complex and difficult electrical connection since each letter of logo requires electrical connection. In case, few letter suffers from default in electrical connection, whole logo is required to be replaced. Such frequent or repetitive change in logo incurs manufacturing cost and is thus expensive.
Further, in the available solution, there is some aftermarket solution of letters for illumination, but it doesn’t allow illuminate standalone single letter through existing sheet metal of the decklid. Also, there are standalone letters placed on the decklid, but they do not illuminate nowadays.
Also in the available technique for illumination of letters on automobile, the letters are attached to the decklid using both sided gluing tape and light engine are either taped, snapped, screwed or clipped from the rear. But these available techniques have problem of leakage associated with them.
However, available/existing technique for illumination of automobile logo/emblem/ letters are unable to provide well-defined, adequate, sufficient, simple, even, homogeneous, and adequate illumination. Further, existing technique for illumination of letters/ logo of an automobile is expensive and requires skilled. Additionally, existing technique in reference to illumination of logo/letter/emblem of an automobile, it suffers from a limitation of inability to provide illumination to standalone/individual letters of a logo.
Few of the light illuminating devices are as follows:
CN213577305U discloses and teaches a multifunctional multiplexing illuminator of car light that possess microstructure decorative pattern. This illuminator comprises of a lampshade, a light guide assembly, a light guide front lining plate, a light guide plate, a micro-structure pattern, a light inlet surface, a light outlet surface, a light guide support, a shell, an LED module and an LED light source. Further, the light guide assembly includes a light guide front substrate, a light guide plate and a light guide bracket arranged in this order from front to back. The back surface of the light guide plate is provided with a micro-structure pattern, the micro-texture patterns are saw-toothed, the saw-toothed faces the vertical direction, a plurality of the saw-toothed are arranged in sequence. The use of micro-structure pattern for reflection of light rays provides an advantage of providing uniform light beam illumination. The illuminated beam is used for signalling function such as turn signal lamp, steering lamp, and so on.
CA2500996C discloses a headlamp assembly that comprises of a housing, a reflector subassembly, a plurality of high-flux light emitting diodes, an inner light transmissive member and outer light transmissive member that has prism optics to it, a drive circuit, and a planar support member. The high flux light emitting diodes is disposed at the base of sub-reflector assembly and is mounted on a planar support that is a circuit board. The inner transmissive member is placed behind the outer light transmissive member. In furtherance of this, the inner light transmissive member is fixed to annular extensions, wherein annular extensions enable prevention of misalignment of inner light transmissive member.
CN112066337B discloses a vehicle lamp that comprises of a light source unit, a light path adjusting unit, an optical member, an incident surface, an emitting surface, an incident lens, an ejection lens, a baffle plate and a baffle part. In this lamp, the optical member is positioned in front of light source unit, wherein the optical member has plurality of incident lenses adhered to it. Further, there is another optical member in front of first optical member that has emission lenses adhered to it in order to allow emission of light beam from the vehicle lamp.
US7188984 discloses a vehicular headlamp assembly includes an array of LED light source modules in which each module includes its own LED light source, its own lens capable of both refracting and reflecting light from the light source, and its own reflector having a contoured inner reflective surface. The modules are dedicated to a specific function, such as high beam or low beam function and are in electrical communication with a circuit board for control of that function. Each individual light source is selectively controlled. This can be accomplished by communication with the control module or through communication with vehicle electronics.
CN208090584U discloses a vehicular light illumination device that comprises of a light source, a light source carrier, a light guide with interior lens. The illumination device of CN’584 provides a kind of sharing of different work of light emitting zone realization that need less installation space. The light guide with interior lens has a depth to it which thereby provides an advantage of light beam illumination that is uniform. However, none of the available illumination units are able to provide the homogeneous illumination of logo as present on any automobile. Thus, there requires a technical solution that can overcome conventional technique of illumination of logo/letter/emblem/mark of an automobile.
Hence, present objective is to provide a device for illuminating automobile logo/letters/emblem/mark, wherein such illumination is suitable and adequate for standalone/individual letter.

SUMMARY OF THE INVENTION:
The present invention relates to a light emitting device to illuminate automobile logo/letters/mark/emblem, wherein such letter(s)/logo/mark/emblem is primarily present on the decklid/ back side of the automobile. The light emitting device is able to illuminate standalone letters/logo/mark/emblem sequentially on the metal sheet of automobile body part. Further, the light emitting device provides homogeneous, even, uniform, and efficient illumination of mark and/or logo and/or letters.
Further, the present invention relates to a light emitting device to illuminate automobile’s logo/letters/mark/emblem that comprises of:
? a plurality of light engine to illuminate logo/letters/mark/emblem, wherein the light engine is attached on outer panel of the automobile;
the light engine includes:
• a plurality of light engine housing that encompasses electronic and optical components/ units/components/assembly;
• a plurality of Printed Circuit Board (PCB), wherein the PCB is a base for electrical circuit to provide electrical connection;
• a plurality of light source, wherein the light source is placed over the PCB to provide electrical connection;
• a plurality of feeding channel, wherein the feeding channel is arranged near light source and placed between the light engine housing and outer panel;
• a plurality of light blade, wherein the light blade is arranged onto the outer panel;
• a plurality of in-moulded optical elements, wherein the in-moulded optical elements are integrated within the light blade; and
• a plurality of double-sided tape, wherein the double-sided tape provides secure attachment of the letters/logo/mark/emblem onto the outer panel;

? a plurality of o-ring seal, wherein the o-ring seal connects the light engine housing to outer panel of the automobile.
Further, the present invention also relates to a method of illuminating letters/logo/mark/emblem. The method includes steps:
• firstly, a light source will emit light rays to letters/logo/emblem/mark as attached on outer panel of automobile;
• then, the light rays will then move through passage of a feeding channel towards a light blade;
• thereafter, the light blade guides the light rays for distributing light inside the letter/logo/emblem/mark evenly;
• lastly, projecting illumination from standalone letters/logo/mark/emblem from outer panel towards outside.
Advantageously, the present invention provides following technical results/advancements:
• letters/logo/mark/emblem does not require drilling of holes onto decklid/ frontside of an automobile which thereby does not hamper/lower mechanical integrity of an automobile; some holes for feeding channels are needed, but these holes are much smaller than holes for the overall letters or logo
• provides better illumination of standalone letters/logo/emblem/mark;
• provides easy, feasible, secured, and economical solution to give attachment of letter/logo/mark onto automobile outer panel;
• provides an easy, feasible, and economical solution for changing electrically default letter(s) of logo in less time; in case of failure or car accident damage
• letters of logo can be illuminated sequentially or in a pre-determined pattern;
• provides illumination of standalone letter in homogeneous, uniform, efficient, adequate, even, and suitable manner.
The summary is provided to introduce the system as a representative concept in a simplified form that is further described below in the detailed description. This summary is not intended to limit the key essential features of the present invention nor its scope and application.
Other advantages and details about the system and the method will become more apparent to a person skilled in the art from the below-detailed description of the invention when read in conjugation with the drawings.

BRIEF DESCRIPTION OF THE ACCOMPANYING DRAWINGS
Embodiments are described with reference to the following Figures. The same numbers may be used throughout to reference like features and components that are shown in the Figures:
Figure 1(a) illustrates schematic view of light emitting device for illuminating letters/logo/mark/emblem of an automobile in accordance with an embodiment of the present invention.
Figure 1(b) illustrates schematic view of arrangement of a light engine as placed on outer panel of automobile in accordance with an embodiment of the present invention.
Figure 1(c) illustrates assembly of multiple components of light emitting device for illuminating letters in accordance with an embodiment of present invention.
Figure 1(d) illustrates schematic view of standalone letters as placed on outer panel of automobile and illuminated by light emitting device in accordance with an embodiment of the present invention.
Figure 2 illustrates flowchart depicting method of illuminating letters/logo/mark/emblem using light emitting device in accordance with an embodiment of present invention
The present invention can be understood with reference to the detailed figures and description set forth herein. Various embodiments are discussed below with reference to the figures. However, those skilled in the art will readily appreciate that the detailed descriptions given herein with respect to the figures are simply for an explanation of the invention as the methods and systems may extend beyond the described embodiments. For example, the teachings presented and the needs of a particular application yield multiple alternatives and suitable approaches to implement the functionality of any detail described herein. Therefore, any approach extends beyond the particular implementation choices in the following embodiments described and shown.
References to “one embodiment,” “at least one embodiment,” “an embodiment,” “one example,” “an example,” “for example,” and so on indicate that the embodiment(s) or example(s) may include a particular feature, structure, circuit, architecture, characteristic, property, element, or limitation but that not every embodiment or example necessarily includes that particular feature, circuit, architecture, structure, characteristic, property, element, or limitation. Further, repeated use of the phrase “in an embodiment” does not necessarily refer to the same embodiment.

TERMS:
Logo is defined as an object which is used for recognition purposes. This may have alphabets with or without islands, a signature, a mark, an emblem, and so on.
Island is defined as a hollow and depressed portion caused by engraving specific alphabets/letters/symbols. In simple terms, the hole or island can be illustrated as the hollow portion which is present primarily in a few alphabets/ letters/symbols

DESCRIPTION
In general automobile/ vehicle are equipped with a logo or letter or mark or emblem that provides easy recognition to passersby towards recognition of automobile manufacturer. Further, such logo/letter/mark are placed on decklid/hood of an automobile. It is pertinent to note that the letters/logo in conventional manner are either made up of plastic or metal. Further, such letter/logo are attached mechanically onto automobile’s decklid or hood. Alternatively, letters or logo can also be placed on automobile through glue or double sided tape i.e. through taping or gluing.
The letters or logos have various surface finish (metallization, chrome plating, painting or they are in the original colour of the base material). If the logo or letters are illuminated, there is placed a big plastic panel at the decklid or hood and the plastic panel include the electronics, light sources, attachment and the letters are usually executed by some transparent or translucent windows in the shape of the letters or logo. If letters are standalone, each letter is larger plastics box including the same stuff of that of the overall panel. Further, letter with presence of an island such as “O”, “P”, “R”, and so on causes great trouble. This is because island of letter is part of automobile plastic panel and requires to be in synchronization. This implies that paint or color of island-based letters needs to be same as that of automobile panel. This way it is ensured that letter/logo appears in uniformity in accordance with an automobile panel onto which they are attached.
Further, if standalone letters would be slide from the back side of the decklid or hood, the overall plastics panel would be hidden (invisible), but the trouble with the colour matching of the island and surrounding is still there. Moreover, because the holes or openings for the letters are big, the structural integrity of the decklid or hood sheet metal is influenced (negatively).
Further, in conventional technique, illuminated logo requires lot of expertise as well as time during their painting process completion. This is because, their color/paint is required to be in synchronization with automobile color/paint. If synchronization is not achieved, this leads to unevenness, non-uniformity and haziness between an automobile and their logo. This also leads to confusion, wherein passersby are neither able to recognize automobile manufacturer nor able to recognize type of an automobile.
In addition to this, logo that is formed by combination-based letter, requires complex and difficult electrical connection since each letter of logo requires electrical connection. In case, few letter suffers from default in electrical connection, whole logo is required to be replaced. Such frequent or repetitive change in logo incurs manufacturing cost and is thus expensive.
However, available/ existing technique for illumination of automobile logo/emblem/ letters are unable to provide well-defined, adequate, sufficient, simple, even, homogeneous, and adequate illumination. Further, existing technique for illumination of letters/ logo of an automobile is expensive and requires skilled workmen. Additionally, existing technique in reference to illumination of logo/letter/emblem of an automobile, suffers from a limitation of inability to provide illumination to standalone/individual letters of a logo.
Hence, there is a need for a technical solution that overcomes above-mentioned issues of providing illumination to a standalone letter/logo/mark/emblem in an economical way.
The present invention relates to a light emitting device to illuminate automobile’s logo/letters/mark/emblem that comprises of:
? a plurality of light engine to illuminate logo/letters/mark/emblem, wherein the light engine is attached on outer panel of the automobile;
the light engine includes:
• a plurality of light engine housing that encompasses electronic and optical components/ units/components/assembly;
• a plurality of Printed Circuit Board (PCB), wherein the PCB is a base for electrical circuit to provide electrical connection;
• a plurality of light source, wherein the light source is placed over the PCB to provide electrical connection;
• a plurality of feeding channel, wherein the feeding channel is arranged near light source and placed between the light engine housing and outer panel;
• a plurality of light blade, wherein the light blade is arranged onto the outer panel;
• a plurality of in-moulded optical elements, wherein the in-moulded optical elements are integrated with the light guide blade; and
• a plurality of double-sided tape, wherein the double-sided tape provides secure attachment of the letters/logo/mark/emblem onto the outer panel;

? a plurality of o-ring seal, wherein the o-ring seal connects the light engine housing to outer panel of the automobile.
The light emitting device to illuminate automobile logo/letters/mark/emblem, wherein such letter(s)/logo/mark/emblem is primarily present on the decklid/ back side of the automobile. The light emitting device is able to illuminate standalone letters/logo/mark/emblem sequentially on the metal sheet of automobile body part. Further, the light illumination device provides homogeneous, even, uniform, and efficient illumination of mark and/or logo and/or letters.
Figure 1(a) illustrates schematic view of light emitting device for illuminating letters/logo/mark/emblem in accordance with an embodiment of the present invention. In the light emitting device (100) for illuminating letters/logo/mark there includes different units/components that forms an illuminating assembly. The light emitting device (100) includes a light engine (107) which contains a light engine housing (101), an outer panel (103), a printed circuit board (PCB) (109), a light source/ light emitting diodes (LED) (110), a feeding channel (111), a light guide blade (113), an in-moulded optical element inside light guide blade (115), and a double sided tape (117) on a stand-alone letter (118) with an outer lens (119) to it. Further, an o-ring seal (105) is present, wherein the o-ring seal (105) connects the light engine housing (101) to outer panel (103) of the automobile. The light emitting device (100) can illuminate letters of logo that may include island, wherein such letters include P, Q, O, D, and so on.
Thus, the light engine housing (101) is connected to outer panel (103) with help of an o-ring seal (105). This ensures to provide water tight leakage so that water/ moisture cannot penetrate in the components of device (100). The light engine is integrated with a lamp driver module (LDM) and electronics driver. The lamp driver module is an electrically controlled component that provides a sequential/ pre-defined pattern to light rays. The pre-defined pattern is in accordance with convenience of user.
In the light engine housing (101), electronic component of PCB (109) is integrated with a pre-defined electrical circuit pattern to provide uninterrupted electrical supply to light source (110). Due to this, it provides a secured base, onto which light source (110) is placed in a pre-defined manner in accordance with convenience of user.
The light source (110) may be LED and may alternatively include other forms of light source based on functionality that is provided by the device (100). The light source (110) is integrated in conjunction to feeding channel (111) that acts as a passage/tunnel through which light rays from light source (110) passes. Thus, the LEDs (110) are placed on the PCB (105) and are placed in front of the feeding channels (111) and are shining through the channel (111) (using the light guide principle) into the light blade (113) inside the letter (118) on the outside of the decklid. The light blade (113) is having some optically dedicated features like structure or in-molded other material caps and managing the final letter shape.
Further, the light blade (113) is placed/arranged onto outer panel (103) of automobile. The light blade (113) is integrated with in-moulded optical element (115). Furthermore, light blade (113) is in conjunction with the feeding channel (110) to receive light rays from it. The light blade (113) is integrated within each of the letters (118) in such way that it follows shape/ structure of the letter (118). These letters (118) that form logo/emblem of an automobile is attached at pre-determined location with help of double-sided tape (117). Additionally, the letters (118) have an outer lens (119) and through outer lens (119) of letters (118) of logo, light beam is projected and thereby, illumination of standalone letters (118) is provided through the light emitting device (100).
Figure 1(b) illustrates schematic view of arrangement of light engine on outer panel in accordance with an embodiment of the present invention. The light engine (107) is placed on the inner side of the outer panel (103) of the automobile. This is achieved by drilling holes in sheet metal of frontside/decklid of an automobile. Preferably, diameter of such holes onto automobile is in range of 2-4 mm.
Figure 1(c) illustrates assembly of multiple components that are utilized in light emitting device for illuminating letters/logo/mark in accordance with an embodiment of present invention. Further, this illustrates arrangement of components such as light engine housing (101), car outer panel (103), light engine (107), o-ring seal (105), letter (118) having double sided tape (117), wherein the letter (118) is in conjunction to feeding channel (111).
Further, an exploded view of the feeding channel (111) is also provided to show clear arrangement of the light emitting device (100). The letters (118) are attached to the decklid sheet metal using double sided tape (117). The feeding channels (111) are going through holes in the sheet metal. From the rear side of the sheet metal is attached light engine (sealed box including the LED electronics driver and LEDs). The rear light engine is sealed using either o-rings (105) or other type of the seal to the feeding channels (111) going through sheet metal and make the light emitting device (100) completely water tight assembly.
Further, the light engine (107) is attached to the outer panel (103) through light engine mounting (107a). The light engine mounting (107a) is arranged over the light engine (107) using various mechanical clips. Alternatively, light engine mounting (107a) can be arranged through taping, snapping, or screwing as per convenience of user. This ensures secure arrangement of light engine (107) onto outer panel (103). It is pertinent to note that, light emitting device provides illumination of standalone letter. In furtherance of achieving this objective, each standalone/individual letter and/or mark and/or emblem is provided with a light engine. Such an arrangement ensures easy serviceability, maintenance, repairability and assembly of standalone letters/mark/emblem onto an automobile. Due to this, it is possible to change one letter when an electrical disconnect occurs.
Figure 1(d) illustrates schematic view of arrangement of standalone letters on outer panel in accordance with the embodiment of the present invention. In one embodiment of the present invention, a letter “S” shown to have attached on the outer panel (103) of the automobile and it illuminates homogenous, even, uniform, and effective light. Each letter has its own light engine to illuminate the letter.
The present invention helps serviceability and simplifies the assembly process for assembly of the letter. It allows illumination of letter/logo on the metal sheet car body parts. The present invention doesn’t lower the mechanical integrity of sheet metal parts of automobile. Further, the present invention removes issue with the color matching of letter islands (OPRDABQ) and rest of the automobile’s body. Thus, the present invention provides homogenous illumination of letters and shapes.
In an exemplary embodiment, the light emitting device for illuminating letters of present invention can be utilized in commercial advertisement boards/placards onto which standalone letters can be illuminated homogeneously, unfirmly, evenly, adequately, and efficiently.
The light emitting device (100) incorporates lamp driver module along electronics driver in light engine (107) that provides sequential pattern of light emblem projection from standalone letter/mark/emblem/logo. In one exemplary embodiment, sequential/ pattern formed in illuminating standalone letter can be projection of different color from different letter such as “RED” from letter S, “YELLOW” from letter B, “BLUE” from letter T, and so on. This different color can imply different color of logo on the automobile.
In another embodiment, the light emitting device (100) can project illuminating letter, wherein initial letter is of one color such as “RED” and rest of the standalone letter is illuminating in same color but different from initial one such as “YELLOW”.
Another exemplary embodiment, light emitting device can project illuminating standalone letter, wherein light beam projection in each of the letter is in wave shape. Alternatively, illumination of letter through light emitting device can be in form of animation wherein letter may illuminate in shape/ structure of animated character.
Alternatively, in another exemplary embodiment, light emitting device can project illuminating standalone letter, wherein each letter lit/illuminate in a pre-defined time duration. For example, letter “S” will illuminate in 2 seconds, letter “K” illuminates in 4 seconds, letter “O” illuminate in 5 seconds, and so on.
In light emitting device, there is illuminated individual/ standalone letter/logo/mark/emblem which is supported via double sided tape. Due to this, electrical fault/disconnection, if any, occurred in any of the letter then it can be rectified easily by replacing that letter. Due to this, there is no need to replace the whole logo/letters/mark/emblem. Thereby, light emitting device is economical and requires much lesser time for replacing faulty letters without requiring much of skilled expertise.
Furthermore, in another exemplary embodiment, the light emitting device for illuminating letters of present invention can be utilized in a car, an ambulance, wherein necessary standalone letters can be illuminated form far-off distance in order to make way for the ambulance towards hospital in timely manner.
Fig. 2 illustrates flowchart depicting method of illuminating letters/logo/mark/emblem using light emitting device in accordance with an embodiment of present invention. The method includes steps:
• first, at step (201), a light source (110) emits light rays to letters/logo/ emblem/mark as attached on outer panel of automobile. Each light source of the light emitting device (100) will emit the light rays simultaneously or sequentially depending on the requirement of the user.;
• next, at step 202, light rays will then move through passage of a feeding channel (111) towards a light blade (113). Due to presence of feeding channel (113), it is ensured that light rays received to light blade (113) does not get deviated to multiple direction. This way illuminating assembly integrated in light emitting device (100) provides unhindered and unidirectional movement of light rays;
• then, at step 203, thereafter, the light blade (113) guide light rays for distributing light at the backside the letter/logo/emblem/ mark evenly. Each light blade (113) is placed beside each individual/ standalone letter of automobile logo. Further, light blade (113) is arranged in such way that it follows the structure/shape of each standalone letter (118) of automobile logo. Due to this, plane, and curvature of each standalone letter (118) is followed precisely. In addition to this, each light blade (113) is integrated with in-moulded optical components (115). Due to this, each part of standalone letter is receiving light rays in an even, homogeneous, uniform, suitable, and adequate manner;
• lastly, projecting illumination from standalone letters/logo/mark/emblem from outer panel (103) towards outside. The light beam projection occurs from lens (119) that is placed over the letter (118). Further, illuminating assembly integrated within light emitting device (100) is providing resultant light beam projection of standalone letters in homogeneous, uniform, even, adequate, suitable, and efficient manner.
Advantageously, the present invention technical results into the following:
• letters/logo/mark/emblem does not require drilling of holes onto decklid/ frontside of an automobile which thereby does not hamper/lower mechanical integrity of an automobile;
• provides better illumination of standalone letters/logo/emblem/mark;
• provides easy, feasible, secured, and economical solution to give attachment of letter/logo/mark onto automobile outer panel;
• provides an easy, feasible, and economical solution for changing electrically default letter(s) of logo in less time;
• letters of logo can be illuminated sequentially or in a pre-determined pattern;
• provides illumination of standalone letter in homogeneous, uniform, efficient, adequate, even, and suitable manner.
A description of an embodiment with several components in communication with each other does not imply that all such components are required. On the contrary, a variety of optional components are described to illustrate the wide variety of possible embodiments of the invention. The arrangement of optical elements may vary in different ways to achieve objective of present invention. Further, structure and dimensional form of different optical components/ units vary and is based in accordance with functionality of present invention.
A person with ordinary skills in the art will appreciate that the systems, circuit elements, modules, and sub-modules have been illustrated and explained to serve as examples and should not be considered limiting in any manner. It will be further appreciated that the variants of the above-disclosed circuit elements, modules, and other features and functions, or alternatives thereof, may be combined to create other different systems or applications.
While the present disclosure has been described with reference to certain embodiments and exemplary embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted without departing from the scope of the present disclosure. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the present disclosure without departing from its scope.
,CLAIMS:1. A light emitting device (100) to illuminate a mark, comprising:
a plurality of light engine which includes:
a plurality of light engine housing (101) encompasses an electronic and optical unit;
a plurality of Printed Circuit Board (PCB) placed in the light engine housing (101) to act as a base for electrical circuit to provide an electrical connection;
a plurality of light source (110) mounted on the PCB (109) to provide the electrical connection;
a plurality of feeding channel placed near the light source (110) between the light engine housing (101) and the outer panel (103) to provide unidirectional movement of light rays;
a plurality of light blade arranged onto an outer panel (103) to project uniform light rays on the mark (118);
a plurality of in-moulded optical elements (115) integrated within the light blade (113) to provide forward even movement of projected light;
a plurality of double-sided tape attached to the mark (118) for it’s secure attachment onto the outer panel (103); and
a plurality of o-ring seal connected to the light engine housing (101) to the outer panel (103) of the automobile to provide water proof leakage connection;
wherein, the light emitting device (100) is attached to the outer panel (103) of the automobile to provide homogeneous illumination of the mark as mounted on a rear side of the automobile.

2. The light emitting device (100) as claimed in claim 1, wherein the mark (118) is a standalone mark mounted on a metal sheet of the automobile.
3. The light emitting device (100) as claimed in claim 1, wherein the mark (118) is attached at a pre-determined location with the help of the double-sided tape.
4. The light emitting device (100) as claimed in claim 2, wherein the mark (118) is having an outer lens to project the light rays to illuminate the standalone mark.
5. The light emitting device (100) as claimed in claim 1, wherein the light engine (101) is mounted on inner side of the outer panel (103) by way of holes.
6. The light emitting device (100) as claimed in claim 5, wherein the holes have diameter in range of 2-4 mm.
7. A method for homogeneous illumination of a mark, the method comprising:
emitting light rays from a light source (110) to the mark attached on an outer panel (103) of an automobile;
moving the light rays through a passage of a feeding channel (111) towards a light blade (113) to emit the light rays in unidirectional;
distributing the light rays homogenously through the light blade (113) on the mark; and
projecting homogeneous illumination from the mark on the outer panel (103) towards outside.

8. The method as claimed in claim 7, wherein the light source (110) emits the light rays in simultaneous manner.
9. The method as claimed in claim 7, wherein the light source (110) emits the light rays in sequential manner.
10 The method as claimed in claim 7, wherein the light blade (113) provides unhindered and unidirectional movement of light rays.