Claims:We claim:

1. A headlight (100) having high-low beam function, position function and/or aesthetic appearance operating with common light source, the headlight (100) comprising:
one or more first reflectors (102), for low and/or high beam configurations and one or more second reflectors (104, 106), for position function;
a first set of Light emitting diodes (LEDs) (1080) and a second set of LEDs (1100), facing the one or more first reflectors (102) and the one or more second reflectors (104, 106), wherein the first set of LEDs (1080) are configured to generate low beam configuration and the second set of LEDs (1100) are configured to generate high beam configuration;
a first printed circuit board (PCB) (108), powering the first set of LEDs (1080) and a second PCB (110), powering the second set of LEDs (1100), arranged respectively for the low beam configuration and the high beam configuration;
one or more transparent surfaces (116, 118), aligned with the one or more first reflectors (102), configured to receive and project the low beam configuration and/or the high beam configuration of light from the first set of LEDs (1080) and the second set of LEDs (1100), reflected from the one or more first reflectors (102); and
a plurality of etched surfaces (112, 114), aligned with the one or more second reflectors (104, 106), configured to receive and project light from the first set of LEDs (1080) and the second set of LEDs (1100), reflected from the one or more second reflectors (104, 106), thereby performing the position function.
2. The headlight (100) as claimed in claim 1, wherein the one or more transparent surfaces (116, 118) and the plurality of etched surfaces (112, 114) are encased in an extension (202).
3. The headlight (100) as claimed in claim 1, wherein the first set of LEDs (1080) and the second set of LEDs (1100) are contained in the first PCB (108) and the second PCB (110), respectively.
4. The headlight (100) as claimed in claim 1, comprising a housing (120) having a plurality of grooves configured to secure the one or more first reflectors (102), the one or more second reflectors (104, 106), the first set of LEDs (1080), the second set of LEDs (1100), the first PCB (108), and the second PCB (110).
5. The headlight (100) as claimed in claim 1, wherein the extension (202) is secured inside the housing (120) using screws and/or snap fit mechanism.
6. The headlight (100) as claimed in claim 1, wherein the low beam configuration is achieved by dispersing the light from the first set of LEDs (1080), via upper first reflector (1020) and lower first reflector (1022) of the one or more first reflectors (102), through upper transparent surface (116) of the one or more transparent surfaces (116, 118).
7. The headlight (100) as claimed in claim 1, wherein the high beam configuration is achieved by dispersing the light from the second set of LEDs (1100), via lower first reflector (1022) of the one or more first reflectors (102), through lower transparent surface (118) of the one or more transparent surfaces (116, 118).
8. The headlight (100) as claimed in claim 1, wherein the light from the first set of LEDs (1080) passes via upper second reflector (104) and lower second reflector (106) of the one or more second reflectors (104, 106), through the plurality of etched surfaces (112, 114).
9. The headlight (100) as claimed in claim 1, wherein the light from the second set of LEDs (1100) passes via lower second reflector (106) of the one or more second reflectors (104, 106), through the plurality of etched surfaces (112, 114).

Dated this the 2nd day of August 2021.

[VIVEK DAHIYA]
AGENT FOR THE APPLICANT – IN/PA 1491.
, Description:FORM 2
THE PATENTS ACT 1970
(39 of 1970)
&
THE PATENTS RULES, 2003
COMPLETE SPECIFICATION
[See section 10 and rule 13]

A HEADLIGHT HAVING HIGH-LOW BEAM FUNCTION, POSITION FUNCTION AND/OR AESTHETIC APPEARANCE OPERATING WITH COMMON LIGHT SOURCE

We, Lumax Industries Limited, an Indian company, having a registered office at 2nd Floor, Harbans Bhawan-II, Commercial Complex, Nangal Raya, New Delhi-110046, India.

The following specification describes the invention and the manner in which it is to be performed.
FIELD OF THE INVENTION
Embodiment of the present invention relates to automotive lighting systems and more particularly to a headlight having high-low beam function, position function and/or aesthetic appearance operating with common light source.
BACKGROUND OF THE INVENTION
In existing headlamp of a vehicle, there are multiple LED light sources and corresponding PCBs performing a lot of functions such as operating main head light low beam, high beam, position function, daytime running light, in some cases indicators. The existing placement of LEDs and PCBs which not only acquire a lot of space but also drain battery and are complicated to operate. Furthermore, their assembly, operational cost, maintenance, part replacement, also adds up to their high cost. In addition, the heavy weight of the headlamps also affects the efficiency and performance of the vehicle. Moreover, more components are responsible for more heat production which causes frequent wear and tear of the headlamp.
For an LED lamp multiple light source input combine together to achieve single function requirement. Every function has their regulatory requirement specifically in case Headlamp function the Output required is too high compared to Signal Lamps. Due to the reason Signal Lamps require Low input LED source and driving current of signal lamp are also less compared to Headlamp.
Therefore, there is a need for a headlight having high-low beam function, position function, and/or aesthetic appearance operating with common light source which can overcome deficiencies and limitations of the prior arts.

OBJECT OF THE INVENTION
An object of the present invention is to provide a headlight having high-low beam function, position function and/or appearance operating with common light source.
Another object of the present invention is to reduce number of components in a headlight.
Yet another object of the present invention is to reduce weight and cost of Lamp.
Yet another object of the present invention is to reduce assembly time of the headlight.
Yet another object of the present invention is to eliminate circuits for Position function with which electronic components are reduced.
Yet another object of the present invention is reduction in E-waste and save environment from toxic emission.
Yet another object of the present invention is compact size and less power consumption.
SUMMARY OF THE INVENTION
This summary is provided to introduce a selection of concepts, in a simple manner, which is further described in the detailed description of the invention. This summary is neither intended to identify key or essential inventive concepts of the subject matter, nor to determine the scope of the invention.
According to an aspect of the present invention, there is provided a headlight having high-low beam function, position function and/or aesthetic appearance operating with common light source is provided. The headlight comprises one or more first reflectors, for low and/or high beam configurations and one or more second reflectors, for position function, a first set of Light emitting diodes (LEDs) and a second set of LEDs, facing the one or more first reflectors and the one or more second reflectors, wherein the first set of LEDs are configured to generate low beam configuration and the second set of LEDs are configured to generate high beam configuration, a first printed circuit board (PCB), powering the first set of LEDs and a second PCB, powering the second set of LEDs, arranged respectively for the low beam configuration and the high beam configuration, one or more transparent surfaces, aligned with the one or more first reflectors, configured to receive and project the low beam configuration and/or the high beam configuration of light from the first set of LEDs and the second set of LEDs, reflected from the one or more first reflectors, and a plurality of etched surfaces, aligned with the one or more second reflectors, configured to receive and project light from the first set of LEDs and the second set of LEDs, reflected from the one or more second reflectors, thereby performing the position function.
In accordance with an embodiment of the present invention, the one or more transparent surfaces and the plurality of etched surfaces are encased in an extension.
In accordance with an embodiment of the present invention, the first set of LEDs and the second set of LEDs are contained in the first PCB and the second PCB, respectively.
In accordance with an embodiment of the present invention, the headlight comprises a housing having a plurality of grooves configured to secure the one or more first reflectors, the one or more second reflectors, the first set of LEDs, the second set of LEDs, the first PCB, and the second PCB.
In accordance with an embodiment of the present invention, the extension is secured inside the housing using screws and/or snap fit mechanism.
In accordance with an embodiment of the present invention, the low beam configuration is achieved by dispersing the light from the first set of LEDs, via upper first reflector and lower first reflector of the one or more first reflectors, through upper transparent surface of the one or more transparent surfaces.
In accordance with an embodiment of the present invention, the high beam configuration is achieved by dispersing the light from the second set of LEDs, via lower first reflector of the one or more first reflectors, through lower transparent surface of the one or more transparent surfaces.
In accordance with an embodiment of the present invention, the light from the first set of LEDs passes via upper second reflector and lower second reflector of the one or more second reflectors, through the plurality of etched surfaces.
In accordance with an embodiment of the present invention, the light from the second set of LEDs passes via lower second reflector of the one or more second reflectors, through the plurality of etched surfaces.
BRIEF DESCRIPTION OF THE DRAWINGS
So that the manner in which the above recited features of the present invention can be understood in detail, a more particular to the description of the invention, briefly summarized above, may be had by reference to embodiments, some of which are illustrated in the appended drawings. It is to be noted, however, that the appended drawings illustrate only typical embodiments of this invention and are therefore not to be considered limiting of its scope, the invention may admit to other equally effective embodiments.
These and other features, benefits and advantages of the present invention will become apparent by reference to the following text figure, with like reference numbers referring to like structures across the views, wherein:
Fig. 1 illustrates a headlight having high-low beam function & position function operating with common light source, in accordance with an embodiment of the present invention;
Figs. 2a and 2b illustrate first PCB and second PCB, in accordance with an embodiment of the present invention;
Fig.3 illustrates an extension, in accordance with an embodiment of the present invention; and
Fig. 4 illustrates working of the headlight as shown in figure 1, in accordance with an embodiment of the present invention.
DETAILED DESCRIPTION OF THE DRAWINGS
While the present invention is described herein by way of example using embodiments, those skilled in the art will recognize that the invention is not limited to the embodiments of drawing or drawings described and are not intended to represent the scale of the various components. Further, some components that may form a part of the invention may not be illustrated in certain figures, for ease of illustration, and such omissions do not limit the embodiments outlined in any way. It should be understood that the drawings and detailed description thereto are not intended to limit the invention to the particular form disclosed, but on the contrary, the invention is to cover all modification/s, equivalent/s and alternative/s falling within the scope of the present invention as defined by the appended claim. The headings used herein are for organizational purposes only and are not meant to be used to limit the scope of the description or the claim. As used throughout this description, the word "may" is used in a permissive sense (i.e., meaning having the potential to), rather than the mandatory sense (i.e., meaning must).
Further, the words "a" or "an" means "at least one” unless otherwise mentioned. Furthermore, the terminology and phraseology used herein is solely used for descriptive purposes and should not be construed as limiting in scope. Language such as "including", "comprising", "having", "containing", or "involving" and variations thereof, is intended to be broad and encompass the subject matter listed thereafter, equivalents, and additional subject matter not recited, and is not intended to exclude other additives, components, integers or steps. Likewise, the term "comprising" is considered synonymous with the terms "including" or "containing" for applicable legal purposes. Any discussion of documents, acts, materials, devices, articles and the likes are included in the specification solely for the purpose of providing a context for the present invention. It is not suggested or represented that any or all of these matters form part of the prior art base or were common general knowledge in the field relevant to the present invention.
In this disclosure, whenever an element or a group of elements is preceded with the transitional phrase “comprising”, it is understood that we also contemplate the same composition, element or group of elements with transitional phrases “consisting of”, “consisting”, “selected from the group of consisting of”, “including”, or “is” preceding the recitation of the composition, element or group of elements and vice versa.
This invention described herein may be embodied in many different forms and should not be construed as limited to the embodiment set forth herein. Rather, the embodiment is provided so that this disclosure will be thorough and complete and will fully convey the scope of the invention to those skilled in the art. In the following description, numeric values and ranges are provided for various aspects of the implementations described. These values and ranges are to be treated as examples only and are not intended to limit the scope of the claims. In addition, a number of materials are identified as suitable for various facets of the implementations. These materials are to be treated as exemplary and are not intended to limit the scope of the invention.
Figure 1 illustrates a headlight (100) having high-low beam function & position function operating with common light source, in accordance with an embodiment of the present invention. As shown in figure 1, the headlight (100) comprises one or more first reflectors (102), one or more second reflectors (104, 106), a first set of Light emitting diodes (LEDs) (1080), a second set of LEDs (1100), a first printed circuit board (PCB) (108), a second PCB (110), one or more transparent surfaces (116, 118), a plurality of etched surfaces (112, 114), an extension (not shown in figure 1), and a housing (120).
In accordance with an embodiment of the present invention, the first PCB (108) and the second PCB (110) may be packed in between the housing (120) and the one or more first reflectors (102) and the one or more second reflectors (104, 106) as shown in figure 1. The housing (120) having a plurality of grooves configured to secure the one or more first reflectors (102), the one or more second reflectors (104, 106), the first set of LEDs (1080), the second set of LEDs (1100), the first PCB (108), and the second PCB (110). Any of the first PCB (108) and the second PCB (110) may be selected from a group comprising of, but not limited to, a single layer, double layer, multi-layer, Rigid-PCB, flexible, Rigid-Flex, High-frequency, Aluminium-backed printed circuit board, and the like. The first PCB (108) and the second PCB (110) may be envisaged to comprise a plurality of holes on surfaces.
Figures 2a and 2b illustrate the first PCB (108) and the second PCB (110), in accordance with an embodiment of the present invention. As shown in figure 2, the first set of LEDs (1080) and the second set of LEDs (1100) may be embedded in the first PCB (108) and the second PCB (110). The first set of LEDs (1080) and the second set of LEDs (1100) may be single chip LEDs or multi-chip LEDs configured as a light source. The light source may be used for a low beam of light and/or a high beam of light in the headlight (100). Particularly, the first set of LEDs (1080) are configured to generate low beam configuration and the second set of LEDs (1100) are configured to generate high beam configuration.
In accordance with an embodiment of the present invention, the plurality of holes may be adapted to connect the first PCB (108) and the second PCB (110) with the one or more first reflectors (102) and the one or more second reflectors (104, 106). The headlight (100) may comprise a plurality of clamp ribs (not shown) and a plurality of guide pins (not shown). The plurality of clamp ribs and a plurality of guide pins may be adapted to be received in the holes of the first PCB (108) and the second PCB (110). The plurality of clamp ribs may be configured to restrict the upward directional movement of the first PCB (108) and the second PCB (110). The plurality of the guide pins may be mountings designed in the one or more first reflectors (102) and the one or more second reflectors (104, 106). The plurality of the guide pins may be used for directing holes on the first PCB (108) and the second PCB (110).
In accordance with an embodiment of the present invention, the housing (120) may be used to house the one or more first reflectors (102) and the one or more second reflectors (104, 106) with the first PCB (108) and the second PCB (110). The housing (120) may comprise housing (120) ribs. The housing (120) ribs may be configured for fixing and restricting the motion of the first PCB (108) and the second PCB (110) and one or more first reflectors (102) and the one or more second reflectors (104, 106). In an alternative or additional embodiment, the first PCB (108) and the second PCB (110), the one or more first reflectors (102) and the one or more second reflectors (104, 106) may be latched on to the ribs with the help of may be, but not limited to, a plurality of grooves, bolts, metal welding, adhesives, or sealant.
In accordance with an embodiment of the present invention, the one or more first reflectors (102) are designed for low and/or high beam configurations. An upper first reflector (1020) of the one or more first reflectors (102) is particularly designed for the low beam configurations. Further, a lower first reflector (1022) of the one or more first reflectors (102) is particularly for the high beam configurations. Furthermore, as shown in figure 1, the one or more second reflectors (104, 106) are designed for position function. An upper second reflector (104) of the one or more second reflectors (104, 106) is designed adjacent to the upper first reflector (1020) and a lower second reflector (106) of the one or more second reflectors (104, 106) is designed adjacent to the lower first reflector (1022). The upper second reflector (104) and the lower second reflector (106) of the one or more second reflectors (104, 106) are configured to perform position function.
The material for the one or more first reflectors (102) and the one or more second reflectors (104, 106) may have the property of being highly reflective, anti-corrosive, and temperature resistant. The material may be, but not limited to, polycarbonate (PC), polypropylene (PP), polybutylene terephthalate, nylon, Acrylonitrile Butadiene Styrene (ABS), Polymethyl Methacrylate (PMMA), and Polyethylene terephthalate (PET), bulk moulding compound (BMC), acrylic mirror, glass mirror, polished metal, and chromic reflectors.
Further, figure 3 illustrates an extension (202), in accordance with an embodiment of the present invention. The extension (202) is secured inside the housing (120) using, may be, but not limited to, hinges, nuts bolts, screws, magnets, springs or snap fit mechanism. As shown in figure 3, the one or more transparent surfaces (116, 118) and the plurality of etched surfaces (112, 114) are encased in the extension (202). Further, the one or more transparent surfaces (116, 118) has an upper transparent surface (116) and a lower transparent surface (118). As shown in figure 3, the upper transparent surface (116) is aligned with the first set of LEDs (1080), in front of the upper first reflector (1020) of the one or more first reflectors (102). Moreover, the lower transparent surface (118) is aligned with the second set of LEDs (1100), in front of the lower first reflector (1022) of the one or more first reflectors (102).
Furthermore, the plurality of etched surfaces (112, 114) has an upper surface (112) and a lower surface (114). As shown in figure 3, the upper surface (112) is aligned with the first set of LEDs (1080) in front of the upper second reflector (104) of the one or more second reflectors (104, 106). Additionally, the lower surface (114) is aligned with the second set of LEDs (1100) in front of the lower second reflector (106) of the one or more second reflectors (104, 106). The material for the one or more transparent surfaces (116, 118) and the plurality of etched surfaces (112, 114) may be transparent and rigid. The material may be, but not limited to, glass, fiber glass, polypropylene, polybutylenes terephthalate, nylon, and the like.
The the plurality of etched surfaces (112, 114) may have a plurality of facets such as slope facets and draft facets at predefined angles that may scatter light. The scattered light provides better light output. The facets then aims the light passing through it in a specific direction, such that all the beams from all the facets together make the requested external distribution of light. The output light falls over without creating white light directly visible to an upcoming vehicle.
In accordance with an embodiment of the present invention, the housing (120) may further comprises a connector and wire assembly. The connector may be configured to provide an electrical connection between a power source and the first PCB (108) and the second PCB (110). The connector may be electrically connected with first PCB (108) and the second PCB (110) through the wire assembly.
In an embodiment, the first PCB (108) and the second PCB (110) may be controlled by a switch (not shown). The switch may be, but not limited to, a Single Pole Single throw (SPST) switch, a single pole double throw (SPDT) switch, a double pole, single throw (DPST) switch, a double pole double throw (DPDT) switch. The switch may be operated by a user. The switch may be placed in a place easily operable by the user. The switch may be placed may be, but not limited to, on a handlebar, on dashboard, on steering wheel, on the head lamp or anyplace of a vehicle easily approachable to the user.
The invention works in following manner:
Figure 4 illustrates working of the headlight (100) as shown in figure 1, in accordance with an embodiment of the present invention. As shown in figure 4, the first PCB (108) is configured to power the first set of LEDs (1080) arranged for the low beam configuration and the second PCB (110) powering the second set of LEDs (1100), arranged for the high beam configuration.
Further, as shown in figure 4, the one or more transparent surfaces (116, 118), aligned with the one or more first reflectors (102), configured to receive and project the low beam configuration and/or the high beam configuration of light from the first set of LEDs (1080) and the second set of LEDs (1100). The light is reflected from the one or more first reflectors (102). In accordance with an embodiment of the present invention, as shown in figure 4, the low beam configuration is achieved by dispersing the light from the first set of LEDs (1080). The light from the first set of LEDs (1080) first strikes and reflects through the upper first reflector (1020) and lower first reflector (1022) of the one or more first reflectors (102). Later, as shown in figure 4, after reflection, the light from the first set of LEDs (1080) passes through the upper transparent surface (116) and the lower transparent surface (118) of the one or more transparent surfaces (116, 118) forming a low beam of light in front of the vehicle.
In accordance with an embodiment of the present invention, as shown in figure 4, the high beam configuration is achieved by dispersing the light from the second set of LEDs (1100). The light from the second set of LEDs (1100) first strikes and reflects through the lower first reflector (1022) of the one or more first reflectors (102). After reflection, as shown in figure 4, the light from the second set of LEDs (1100) passes through lower transparent surface (118) of the one or more transparent surfaces (116, 118) forming a high beam of light in front of the vehicle.
Further, as shown in figure 4, the plurality of etched surfaces (112, 114), aligned with the one or more second reflectors (104, 106), configured to receive and project light from the first set of LEDs (1080) and the second set of LEDs (1100). The light is then reflected from the one or more second reflectors (104, 106), thereby performing the position function. The position function includes glowing of the upper surface (112) and the lower surface (114) of the plurality of etched surfaces (112, 114). In accordance with an embodiment of the present invention, as shown in figure 4, the light from the first set of LEDs (1080) reflects from the upper second reflector (104) and the lower second reflector of the one or more second reflectors (104, 106), through the plurality of etched surfaces (112, 114), thereby glowing the upper surface (112) and the lower surface (114). Furthermore, the light from the second set of LEDs (1100) reflects from the lower second reflector (106) of the one or more second reflectors (104, 106), through the plurality of etched surfaces (112, 114), thereby glowing the upper surface (112) and the lower surface (114).
The first PCB (108) and the second PCB (110), on actuation of the switch, supplies the electrical power to the the first set of LEDs (1080) and the second set of LEDs (1100). The the first set of LEDs (1080) and the second set of LEDs (1100) produce light. The light from the first set of LEDs (1080) and the second set of LEDs (1100) reflects from one or more first reflectors (102) and one or more second reflectors (104, 106). The reflected light passes through the one or more transparent surfaces (116, 118) and the plurality of etched surfaces (112, 114). In an additional or alternative embodiment, the one or more transparent surfaces (116, 118) may be configured to converge or diverge low-intensity light of the first set of LEDs (1080) and the second set of LEDs (1100) in order to adjust intensity of LEDs.
In accordance with an embodiment of the present invention, the switch may have access to select any of the high beam configuration or low beam configuration. When the user of the vehicle selects a low beam configuration on the switch, the switch allows the electric current to flow to the first PCB (108) to turn on the first set of LEDs (1080) configured to generate a low beam of light. As shown in figure 4, along with the low beam configuration, the upper surface (112) of plurality of etched surfaces (112, 114) is also configured to glow as a result of reflection form the upper second reflector (104).
Whereas, if the user of the vehicle selects a high beam configuration, the switch allows the electric current to flow to the second PCB (110) to turn on the second set of LEDs (1100) configured to generate a high beam of light. As shown in figure 4, along with the high beam configuration, the lower surface (114) of plurality of etched surfaces (112, 114) is also configured to glow as a result of reflection form the lower second reflector (106).
The present invention provides a number of advantages. Firstly, reduced number of components (special PCB for Position function, LED, Wire Assy, Screws etc.). Secondly, reduced weight and cost of Lamp. Also, the present invention provides reduced assembly time. Further, easy assembly reduces operator’s fatigue. The present invention eliminated special circuit for Position function with which electronic components are reduced which leads to reduction in E-waste and step to save environment from toxic emission. Further, the compact size and less power consumption of the present invention make it a cost-effective solution to the problems of the prior art.
Various modifications to these embodiments are apparent to those skilled in the art from the description and the accompanying drawings. The principles associated with the various embodiments described herein may be applied to other embodiments. Therefore, the description is not intended to be limited to the embodiments shown along with the accompanying drawings but is to be provided broadest scope consistent with the principles and the novel and inventive features disclosed or suggested herein. Accordingly, the invention is anticipated to hold on to all other such alternatives, modifications, and variations that fall within the scope of the present invention and the appended claims.