Claims:We Claim:
1. A headlamp assembly (105, 200) of a vehicle (100) comprising:
a front cowl unit (507) including a headlamp lens (201); and
a reflector unit (508);
wherein,
said reflector unit (508) includes a plurality of projected portions (303a, 303b, 303c), and said plurality of projected portions (303a, 303b, 303c) of said reflector unit (508) adjoins with said headlamp lens (201) of said headlamp assembly (105, 200).
2. The headlamp assembly (105, 200) of a vehicle (100) as claimed in claim 1, wherein the plurality of projected portions (303a, 303b, 303c) of the reflector unit (508) adjoins with the plurality of defined regions (201a, 201b, 201c) of the headlamp lens (201) at a plurality of pre defined zones (a, b, c).
3. The headlamp assembly (105, 200) of a vehicle (100) as claimed in claim 1 or claim 2, wherein a gap between the plurality of projected portions (303a, 303b, 303c) of the reflector unit (502) and the plurality of defined regions of the headlamp lens (201a, 201b, 201c) at a plurality of pre defined zones (a, b, c), is substantially less than a gap between the inner surface of the headlamp lens (201) and other portions of the reflector unit (502).
4. The headlamp assembly (105, 200) of a vehicle (100) as claimed in claim 1, wherein a low beam light source (401) is mounted on a printed circuit board 1 (402) configured in a posterior upper portion of a top compartment (301) of the reflector unit (502).
5. The headlamp assembly (105, 200) of a vehicle (100) as claimed in claim 1, wherein a high beam light source (404) is mounted on a printed circuit board 2 (403) configured in a posterior upper portion of a bottom compartment (302) of the reflector unit (502).
6. The headlamp assembly (105, 200) of a vehicle (100) as claimed in claim 1, wherein the printed circuit board 1 (402) and the printed circuit board 2 (403) are positioned parallel to each other, and disposed substantially overlapping along a vertical axis (Z-Z axis) of the headlamp assembly (105, 200).
7. The headlamp assembly (105, 200) of a vehicle (100) as claimed in claim 1 or 4 or 5 wherein the low beam light source (401) and the high beam light source (404) include one or more light emitting diodes.
8. The headlamp assembly (105, 200) of a vehicle (100) as claimed in claim 1, wherein the headlamp assembly (105, 200) is capable of accommodating the one or more position lamp unit.
, Description:TECHNICAL FIELD
[0001] The present subject matter described herein generally relates to a vehicle, and particularly but not exclusively relates to a headlamp assembly of a vehicle.

BACKGROUND
[0002] Typically vehicles such as motorcycles, scooters, trike, autorickshaws etc., include a cowl assembly supported by a head tube. The cowl assembly of a conventional vehicle houses at least a portion of a handlebar member, a front position lamp unit, a pair of front turn signal lamps, and a headlamp assembly.
[0003] Conventionally, the headlamp assembly is electrically operated, positioned in pair, usually round in shape, consisting of parabolic reflecting surface, and is disposed on a front portion of the vehicle, to illuminate the road ahead of the vehicle, when vehicle is in moving state, by using a distributed beam of light. The light is projected and the beam is focused on the road, by the means of simple symmetric round reflecting surface.
[0004] Usually, the headlamp assembly is required to produce a low and a high beam, which may be produced by multiple pairs of single-beam lamps or by a pair of dual-beam lamps, or a mix of single-beam and dual-beam lamps. The high beam cast most of its light straight ahead, maximizing seeing distance but producing too much glare for safe use, when other vehicles are present on the road. Because there is no special control of upward light, the high beam also causes back dazzle from fog, rain and snow due to the retro reflection of the water droplets. The low beam has stricter control of the upward light, and direct most of its light downward and either rightward (in right-traffic countries) or leftward (in left-traffic countries), to provide forward visibility without excessive glare or back dazzle.

BRIEF DESCRIPTION OF THE DRAWINGS
[0005] The detailed description is described with reference to a headlamp assembly of a saddle type two wheeled vehicle along with the accompanying figures. The same numbers are used throughout the drawings to reference like features and components.
[0006] Fig.1 illustrates a side view of a vehicle comprising a headlamp assembly when viewed from left hand side of the rider while he is in riding position along with few internal parts of the vehicle for clarity of explanation, in accordance with an embodiment of the present invention
[0007] Fig.2 illustrates a perspective view of the headlamp assembly in accordance with an embodiment of the present invention.
[0008] Fig. 3 illustrates a front view of the headlamp assembly in accordance with an embodiment of the present subject matter.
[0009] Fig. 4 illustrates cross sectional view of the headlamp assembly when viewed from side of a vehicle in accordance with an embodiment of the present subject matter.
[00010] Fig.5 illustrates exploded view of the headlamp assembly when viewed from side of the headlamp assembly in accordance with an embodiment of the present subject matter.
[00011] Fig.6 illustrates difference in light output by a low beam light between a conventional head light assembly and the head light assembly in accordance with an embodiment of the present invention.

DETAILED DESCRIPTION
[00012] Usually in a two wheeled vehicle the headlamp profile is such that the reflectors are arranged away from headlamp lens in a headlamp assembly. The distance between the reflectors and the headlamp lens is such that the inner details of the headlamp assembly are visible, when viewed from the front of the vehicle, making the overall look of the headlamp assembly aesthetically unpleasant.
[00013] To maintain the aesthetics of the headlamp assembly generally the area between the headlamp lens and the front cowl member of the headlamp is lined from outside the headlamp assembly with an additional part such as a bezel, thus minimizing the visibility of the inner parts of the headlamp assembly, when viewed from the front of the vehicle. The addition of the additional part such as the bezel tends to increase the overall size of the headlamp assembly, making it unnecessarily bulkier. Also the manufacturing cost of the additional part such as a bezel, increases the overall price of the headlamp assembly.
[00014] Conventionally, in the headlamp of a two wheeled vehicle, reflector is placed in a single compartment that act as both high beam reflector and low beam reflector, as a result of which excessive heat is produced, which affects the life of the light source and overall functioning of the headlamp lamp assembly. Therefore, usually the heat produced is further disseminated and reduced by providing heat sink. The placement of both reflector and the heat sink in the same compartment consume excess space, resulting into bulkier headlamp assembly construction.
[00015] The use of additional part such as bezel, the placement of reflector and heat sink in same compartment, tends to create complex assembly, which increases the overall assembly time required to assemble the headlamp.
[00016] Conventionally, in a two wheeled vehicle, one or more reflector is arranged away from the headlamp lens, as a result of which the distance between the light spread from the low beam of the head light assembly to the road is substantially large. Furthermore, in most of the two wheeled vehicles the low beam is placed below the high beam, which further adds to the large distance between the light spread from the low beam of the head light assembly to the road.
[00017] The large distance between the immediate vehicle’s underlying road and the road visible through the low beam, becomes a reason of accidents in many cases, especially when the rider is travelling during night time. During many instances the rider fails to notice any underlying obstacle present on the road, especially during night time when the speed of the vehicle is more, resultant of which accidents occur, potentially increasing overall night time traffic fatalities. In a two wheeled vehicle the headlamp performance has steadily improved and further needs constant improvement throughout the automobile age, especially because it is spurred by the great disparity between daytime and night time traffic fatalities, despite only approximately 25% of traffic travelling occurs during darkness.
[00018] Therefore, there exists a need to provide a headlamp assembly for a two or three wheeled vehicle, which has reduced components, a compact structure, reduced manufacturing cost, more easy to assemble, has reduced assembly time, and a better low beam light output making the forward road light visibility more efficient during night and thus helping in reduction of road accidents during night, additionally not compromising with the aesthetic appeal of the headlamp of the vehicle.
[00019] The present invention has been devised in view of the above circumstances as well as solving other problems of known art.
[00020] In an embodiment of the present subject matter, the light source unit disposed on the front portion of the vehicle is a head lamp.
[00021] In another embodiment of the present subject matter a first cowl member is a front cowl member, a second cowl member is a rear cowl member, a reflector unit and a position lamp unit is a front position lamp unit.
[00022] As per an aspect of the present subject matter, the headlamp assembly of a vehicle comprises the front cowl unit, the rear cowl unit, and the reflector unit. The front cowl unit includes a headlamp lens, an upper cowl member, a side cowl member LH, a bottom cowl member, and a side cowl member RH. The headlamp lens has an outer surface and an inner surface. The inner surface of the headlamp assembly has a curved profile that extends from top portion of the head lamp till the bottom portion of the head lamp. The reflector unit includes a single reflecting surface, compartmentalized into two separate compartments, for example, a top compartment and a bottom compartment. The rear cowl unit includes a rear cowl member. The rear cowl member covers the underlying parts of the head lamp assembly from the rear end of the head lamp assembly.
[00023] Further, as per an aspect of the present subject matter, the reflector unit has a posterior end and a front end. A low beam light source is mounted on a printed circuit board 1, which is further mounted on a top posterior part of the top compartment. A high beam light source is mounted on a printed circuit board 2, which is further mounted on a top posterior part of the bottom compartment. The posterior end of the reflector unit has the printed circuit board 1 and the printed circuit board 2, positioned parallel to each other on a vertical Z-Z axis, in a vertical direction of the headlamp assembly (where Z –Z axis denotes perpendicular axis to the ground).
[00024] Still further, as per an aspect of the present subject matter, the front end of the reflector unit has a plurality of projected portions. The profile of the plurality of projected portions is such that the plurality of projected portions is in proximity with the inner surface of the headlamp lens at a plurality of defined regions of the headlamp lens. The plurality of projected portions of the reflector unit adjoins the plurality of defined regions of the headlamp lens at a plurality of pre defined zones, for example, a, b, and c.
[00025] Further, as per an aspect of the present subject matter, the printed circuit board 1 and the printed circuit board 2 are configured on the posterior end of the reflector unit, positioned parallel to each other on the Z-Z axis, in the vertical direction of the headlamp assembly, enabling reduction of the overall headlamp size.
[00026] As per another aspect of the present subject matter, the top compartment of the reflector unit functions as a low beam compartment and the bottom compartment of the reflector unit functions as a high beam compartment. A low beam light source which emits low beam is placed in the low beam compartment to direct most of its light downward and either rightward (in right-traffic countries) or leftward (in left-traffic countries), to provide forward visibility. A high beam light source, which emits high beam, is placed in the high beam compartment to cast most of their light straight ahead, maximizing conspicuity of the high beam compartment below the low beam compartment. Since the low beam light source is placed above the high beam light source along the Z-Z axis while being parallel to each other, the light output by the low beam enhances, as the construction helps in illuminating the road closer to the vehicle and thus helps in reduction of road accidents during night time that usually occur due to low forward road visibility.
[00027] As per another aspect of the present subject matter, the plurality of projected portions of the reflector unit adjoins with the plurality of defined regions of the headlamp lens at the plurality of pre defined zones, for example, a, b, and c. The proximity between the specified regions of the headlamp lens and the specified protrusions of the reflector unit helps in hiding the inner details of the headlamp without usage of additional parts placed on the outer surface of the headlamp cowl assembly, for example, a bezel. The close proximity between the specified regions of the headlamp lens and the specified protrusions of the reflector unit also aids in providing better light output by the low beam, as because of its placement on the top compartment and the respective reflector unit’s proximity with the headlamp lens, the forward road visibility is enhanced. Therefore, the present subject matter owes in overall reduction of the headlamp parts, overall reduction of the headlamp size, and aids in achieving better light output by the low beam.
[00028] As per another aspect of the present subject matter, the proximity between the specified regions of the headlamp lens and the specified protrusions of the reflector unit, the placement of the low beam light source in the reflector unit’s top compartment, and the placement of the low beam light source on the printed circuit board 1 positioned parallel to each other on the Z-Z axis, aids in achieving overall compact packaging of the headlamp assembly.
[00029] As per another aspect of the present subject matter, the proximity between the specified regions of the headlamp lens and the specified protrusions of the reflector unit, the placement of the low beam light source in the reflector unit’s top compartment, and the placement of the low beam light source on the printed circuit board 1 positioned parallel to each other on the Z-Z axis, aids in easy assembly of the headlamp assembly. Easy assembly of the headlamp assembly is achieved by reducing the overall assembly time required to assemble a headlamp.
[00030] As per another aspect of the present subject matter, the proximity between the specified regions of the headlamp lens and the specified protrusions of the reflector unit, the placement of the low beam light source in the reflector unit’s top compartment, and the placement of the low beam light source on the printed circuit board 1 positioned parallel to each other on the Z-Z axis, aids in reduction of the overall manufacturing cost of the headlamp assembly. The overall manufacturing cost of the headlamp assembly is achieved as the present claimed invention results in simpler construction of the headlamp assembly with the omission of the need of additional parts, for example, the bezel.
[00031] As per an aspect of the present subject matter, the proximity between the specified regions of the headlamp lens and the specified protrusions of the reflector unit conceals the inner details of the headlamp, without usage of additional parts, for example, the bezel. The concealed inner details of the headlamp assembly aids in improving the overall aesthetic appeal of the headlamp assembly.
[00032] As per another aspect of the present subject matter, the headlamp assembly construction is such that the low beam light output enhances the forward road light visibility and also helps reduction of the overall size of the headlamp assembly.
[00033] As per another aspect of the present subject matter, the gap present between the plurality of projected portions of the reflector unit and the plurality of defined regions of the headlamp lens at a plurality of pre defined zones, for example, a, b, and c, is substantially less than the gap between the inner surface of the headlamp lens and other portions of the reflector unit.
[00034] As per another embodiment of the present subject matter, the headlamp assembly of a vehicle is capable of accommodating the one or more position lamp unit.
[00035] In an alternate embodiment of the present subject matter, the power unit of the vehicle can be an electric motor or a hybrid power train unit.
[00036] Exemplary embodiments detailing features of the head light assembly, in accordance with the present invention will be described hereunder with reference to the accompanying drawings. Various aspects of different embodiments of the present invention will become discernible from the following description set out hereunder. Rather, the following description provides a convenient illustration for implementing exemplary embodiments of the invention. Further, it is to be noted that terms “upper”, “lower”, “right”, “left”, “front”, “forward”, “rearward”, “downward”, “upward”, “top”, “bottom” and like terms are used herein based on the illustrated state or in a standing state of the vehicle with a driver riding thereon. Furthermore, a two wheeled vehicle longitudinal axis refers to a front to rear axis relative to the vehicle, while a vehicle lateral axis refers to a side to side, or left to right axis relative to the vehicle. Also, it is to be understood that the phraseology and terminology used herein is for the purpose of description and should not be regarded as limiting.
[00037] The nature and further characteristic features of the present invention will be made clearer from the following descriptions made with reference to the accompanying drawings.
[00038] Fig. 1 illustrates a perspective view of a vehicle 100 comprising a headlamp assembly 105, 200 when viewed from left hand side of the rider while rider is in riding position along with few internal parts of the vehicle 100 for clarity of explanation, in accordance with an embodiment of the present invention. The vehicle 100 includes a body frame 120 to support different parts of thevehicle100. The body frame 120 includes a head tube (not shown) at its front end. The head tube (not shown) supports a steering shaft (not shown) rotatably in a certain range. In an upper portion of the head tube (not shown), a handlebar 107 is rotatably integrally connected to the steering shaft. The handlebar 107 further houses provision for viewing mirrors 108 used to keep a track of approaching vehicles from behind. The handlebar 107 is used to steer the vehicle 100 and is connected to a front wheel 101 through the steering shaft, a front fork assembly 103 and a brake assembly 121. An upper portion of the front wheel 101 is covered by a front fender 102 which prevents mud and water from getting deflected towards the steering shaft. Further, the front fork assembly 103 is supported on the front fender 102 by means of a brace fender (not shown).
[00039] In the front portion of the body frame 120 a fuel tank 109 is arranged immediately behind the handlebar 107 and is disposed over an engine 119. A seat 110 is placed behind the fuel tank 109. The seat 110 includes a front rider portion and rear pillion portion. The pillion seat portion is placed on the rear portion of the body frame 120, where the rear portion of body frame 120 is covered by the rear cover 112 and a hand rail 111 is provided for the pillion rider to grab when the vehicle is moving, keeping safety measures of pillion rider in consideration. During stationary position the rider can park the vehicle 100 with help of a plurality of stands, for example, center stand 118.
[00040] Suspension systems are provided for comfortable riding of the vehicle 100 on the road. The front fork assembly 103, which forms the front suspension system, serves as rigidity component just like the body frame 120. The front fork assembly 103 clamped to the head tube 121 through an upper bracket (not shown) and a lower bracket (not shown) is capable of being moved to the left and right. Further, a rear suspension system 117, which is a hydraulic damped arrangement, is connected to the body frame 120. The rear suspension system 117 comprises of at least one rear suspension (not shown) preferably on a left hand side of the vehicle 100. However, in a vehicle 100 with two rear suspensions 117, the same may be disposed on the left side and the right side respectively of said vehicle 100.
[00041] The power unit 119 for example, an engine 119, is mounted to a front lower portion of the body frame 120 by means of an engine mounting bracket (not shown). The engine 119 is equipped with an exhaust system that includes an exhaust pipe (not shown) connected to the engine 119 and a muffler (not shown) connected to the exhaust pipe. The muffler (not shown) extends rearwards along the right side of the rear wheel 116.
[00042] Further, a swing arm (not shown) extending rearwards is swingably connected to a lower rear portion of the body frame 120. The rear wheel 116 is rotatably supported at a rear end of the swing arm. Power from the engine 119 is transmitted to the rear wheel 116 through a power drive mechanism, such as a drive chain, so as to drive and rotate the rear wheel 116.
[00043] A rear fender 114 for covering an upper side of the rear wheel 116 is mounted to a rear portion of body frame 120 to prevent mud and water splashed by the rotating rear wheel 116 from entering the muffler, the engine 119 and other parts disposed close by.
[00044] To enhance the overall aesthetics of the vehicle 100 and to prevent undesired foreign particles from entering parts of the vehicle, a plurality of rear covers 112is attached to a rear portion of the body frame 120.
[00045] For the safety of the rider and in conformance with the traffic rules, a headlamp assembly 105 and a turn signal lamp unit 106, 113 are provided at both front and rear portions of the vehicle 100. On the rear portion of the vehicle 100 a tail lamp (not shown) is provided on the rear portion of the rear cover 112.
[00046] Fig. 2 illustrates a perspective view of the headlamp assembly 105, 200 in accordance with an embodiment of the present subject matter. The headlamp assembly 200 includes a headlamp cowl assembly 202, a headlamp lens 201, and a cluster mounting provision 203. The headlamp cowl assembly 202 acts as a protecting casing for the enclosed parts while enhancing the aesthetic appeal of the headlamp assembly 200. The headlamp cowl assembly 202 consists of a rear cowl member 204, present on the posterior side of the headlamp assembly 200, an upper cowl member 205 present on the upper side of the headlamp assembly 200, a bottom cowl member 207 present on the lower side of the headlamp assembly 200, a side cowl member LH 206 present on the left hand side of the headlamp assembly 200, and a side cowl member RH 208 present on the right hand side of the headlamp assembly 200. The front portion of the headlamp assembly 200 is covered by a transparent headlamp lens 201 that aids in desired light distribution for forward road visibility. The headlamp lens 201 has an outer surface and an inner surface. The inner surface of the headlamp assembly 201 has a curved profile that extends from top portion of the head lamp assembly 200 to the bottom portion of the head lamp assembly 200. The upper cowl member 205 of the cowl assembly of headlamp assembly 202 consists of a cluster mounting provision 203 capable of mounting a cluster (not shown).
[00047] Fig. 3 illustrates a front view of the headlamp assembly 105, 200 in accordance with an embodiment of the present subject matter. The headlamp cowl assembly 202 is mounted on the head tube (not shown) by means of one or more headlamp mounting provisions 304a, 304b, 304c, 304d and 304e. The headlamp cowl assembly 202 and the headlamp lens 201 together enclose one or more light source, one or more light source mounting provision, and a reflector unit 502 (shown in Fig. 5) that includes a reflecting surface 303. The reflector unit 502 (shown in Fig. 5) includes a single reflecting surface 303, compartmentalized into two separate compartments, for example, a bottom compartment 302 and a top compartment 301. Both the bottom compartment 302 and the top compartment 301 functions as a separate reflector for their respective light source.
[00048] The reflecting surface 303 reflects the rays parallel to the principal axis of the head lamp assembly when the light source is placed at its focal point, irrespective of where the rays fall on the reflecting surface 303, thereby producing a bright parallel reflected beam of constant light intensity. The headlamp lens 201 along with the headlamp reflecting surface 303 provides a powerful far-reaching central beam, around which the light is distributed both horizontally and vertically to illuminate maximum possible area of the road surface immediate to the frontal region of the vehicle 100. The beam formations are substantially improved by passing the reflected light rays through the transparent block of headlamp lens 201 in a two wheeled vehicle 100 as the headlamp lens 201 redistributes the reflected light beam and stray rays to certain extent due to which a better forward road visibility is obtained with least glare.
[00049] In the present claimed subject matter, the headlamp assembly 200 is configured such that, there are two separate compartments, the top compartment 301 functioning as a low beam compartment, and the bottom compartment 302 functioning as a high beam compartment. The both top compartment 301 and the bottom compartment 302 are arranged on the “Z-Z” axis (shown in Fig 4) parallel to each other.
[00050] Fig. 4 illustrates a cross sectional view of the headlamp assembly 105, 200 when viewed from side of the vehicle 100 in accordance with an embodiment of the present subject matter. The headlamp assembly 105, 200 comprises the headlamp lens 201, a reflecting surface 303 functioning as a reflector, a top compartment 301 functioning as a low beam compartment, a bottom compartment 302 functioning as a high beam compartment, a low beam light source 401 mounted on its respective printed circuit board 1 402, and a high beam light source 404 mounted on its respective printed circuit board 2 403.
[00051] The headlamp assembly 200 is covered by a concave shaped structured headlamp lens 201 from the front and headlamp cowl assembly 202 from a right hand side, a left hand side, a top end, a bottom end, and a rear end enclosing the underlying enclosed parts of the headlamp assembly 105,200. The headlamp lens 201 has an outer surface and an inner surface. The single reflecting surface 303, which is a part of the reflector unit 502 (shown in Fig. 5), is compartmentalized into two separate compartments, for example, the bottom compartment 302 and the top compartment 301. Both the bottom compartment 302 and the top compartment 301 functions as a separate reflector for their respective light source. The reflector unit 502 (shown in Fig. 5) that includes a single reflecting surface 303, has a front end and a posterior end.
[00052] The front end of the reflector unit 502 (shown in Fig. 5) has a plurality of projected portions 303a, 303b, and 303c. The profile of the plurality of projected portions 303a, 303b, and 303c of the reflector unit 502 (shown in Fig. 5) is such that the plurality of projected portions 303a, 303b, and 303c is in proximity with the inner surface of the headlamp lens 201 at a plurality of defined regions 201a, 201b, and 201c of the headlamp lens 201. The plurality of projected portions 303a, 303b, and 303c of the reflector unit 502 (shown in Fig. 5) and the plurality of defined regions of the headlamp lens 201a, 201b, and 201c juxtapose each other at a plurality of pre defined zones, for example, a, b, and c.
[00053] The proximity between the plurality of projected portions 303a, 303b, and 303c of the reflector unit 502 (shown in Fig. 5) and the plurality of defined regions of the headlamp lens 201a, 201b, and 201c at a plurality of pre defined zones, for example, a, b, and c, creates a profile, that aids in providing a better light output and at the same time helps in concealing the inner details of the headlamp without the usage of any additional parts, such as a bezel (not shown).
[00054] The gap present between the plurality of projected portions 303a, 303b, and 303c of the reflector unit 502 (shown in Fig. 5) and the plurality of defined regions of the headlamp lens 201a, 201b, and 201c at a plurality of pre defined zones, for example, a, b, and c, is substantially less than the gap between the inner surface of the headlamp lens 201 and other portions of the reflector unit 502 (shown in Fig. 5).
[00055] The posterior end of the reflector unit 502 (shown in Fig. 5) houses one or more light sources, such as a low beam light source 401 and a high beam light source 404. The low beam light source 401 is placed on the printed circuit board 1 402 disposed on the upper portion of the top compartment 301, at the posterior end of the reflector unit 502 (shown in Fig. 5). The high beam light source 404 is placed on the printed circuit board 2 403 disposed on the top portion of the bottom compartment 302, at the posterior end of the reflector unit 502 (shown in Fig. 5).The printed circuit boards 402, 403 mechanically support and electrically connects the electrical or electronic components using conductive tracks, pads and other features etched from one or more laminated sheet layers onto and/or between sheet layers of a non-conductive substrate. The printed circuit boards 402, 403 also help in transfer of heat away from the light source. The low beam light source 401 mounted on its respective printed circuit board 402, and the high beam light source 404 mounted on its respective printed circuit board 403 are positioned parallel to each other and substantially on the same vertical Z-Z axis, in vertical direction of the headlamp assembly 105, 200 aiding in overall reduction of the headlamp 105, 200 size, thus achieving overall size compactness.
[00056] Fig. 5 illustrates an exploded perspective view of the headlamp assembly 105, 200, when viewed from side of the headlamp assembly 105, 200 in accordance with an embodiment of the present subject matter. The headlamp assembly 105, 200 comprises of a front cowl unit 507, a reflector unit 508 and, a rear cowl unit 509. The front cowl unit 507 includes headlamp lens 201 in the front, the upper cowl member 205 covering the upper portion of the front cowl unit 507, the front cowl unit is covered on sides by the side cowl member RH 208 and side cowl member LH 206, and the bottom portion of the front cowl unit 507 is covered by bottom cowl member 207.
[00057] The reflector unit 508 includes a single reflecting surface 303 is compartmentalized into two separate compartments, for example, the bottom compartment 302 and the top compartment 301. Both the bottom compartment 302 and the top compartment 301 functions as a separate reflector for their respective light source. The low beam light source 401 is mounted on the printed circuit board 1 402 which is further mounted on the upper portion of the top compartment 301 functioning as the low beam compartment 301 by means of mounting provisions 504 present on the printed circuit board 1 402 and a plurality of fasteners 501. The plurality of high beam light source 404 is mounted on a printed circuit board 2 403 which is further mounted on the upper portion of the bottom compartment 302, by means of mounting provisions 505, present on the printed circuit board 2 403, and a plurality of fasteners 502.
[00058] The rear cowl unit 509 includes rear cowl member 204 which functions as the rear member of the headlamp assembly 105, 200. The rear cowl unit 509 is fastened to the reflector unit 508 by means of a plurality of fasteners 503.
[00059] Fig. 6a and Fig. 6b illustrates difference in light output by a low beam light between a conventional head light assembly A and the head light assembly 105, 200 in accordance with an embodiment of the present invention B.
[00060] Fig. 6a illustrates a horizontal X axis and a vertical Y axis. The X axis denotes distance from headlamp assembly 105, 200 to light output on road and the Y axis denotes light output spread in left and right rear ends of the headlamp assembly 105, 200. The graph depicting the conventional head light assembly A represents that the distance between the light spread from the low beam of the head light assembly 105, 200 to the road is substantially large, for example, the immediate light output starts from approximately 4.5 meters away from the immediate road.
[00061] Fig. 6b illustrates a horizontal X axis and a vertical Y axis. The X axis denotes distance from headlamp assembly 105, 200 to light output on road and the Y axis denotes light output spread in left and right rear ends of the headlamp assembly 105, 200. The graph depicting the head light assembly 105, 200 in accordance with an embodiment of the present invention B, represents that the distance between the light spread from the low beam of the head light assembly 105, 200 to the road is substantially low, for example, the immediate light output starts from approximately 1.5 to 2 meters away from the immediate road.
[00062] When the results shown in Fig 6a is compared with the results shown in Fig. 6b, a better light output and better road visibility is seen being achieved in case of the head light assembly 105, 200 in accordance with an embodiment of the present invention B (shown in Fig. 6b), thus helping in reduction of road accidents during night time due to low forward road visibility.
[00063] It is to be understood that the aspects of the embodiments are not necessarily limited to the features described herein. Many modifications and variations of the present subject matter are possible in the light of above disclosure. Therefore, within the scope of claims of the present subject matter, the present disclosure may be practiced other than as specifically described.

LIST OF REFERENCE NUMERALS:

100: Two wheeler vehicle
101: Front wheel
102: Front fender
103: Front fork assembly
105, 200: Headlamp assembly
106: Front turn signal lamp
107: Handle bar
108: Mirror
109: Fuel tank
110: Seat
111: Hand rail
112: Rear cover
113: Rear turn signal lamp
114: Rear fender
115: Side cover
116: Rear wheel
117: Rear suspension
118: Center stand
119: Engine
120: Body frame
121: Break assembly
201: Headlamp lens
201a, 201b, and 201c: plurality of regions of the headlamp lens adjoining the reflecting surface
202: Cowl assembly of headlamp assembly
203: Cluster mounting provision
204: Rear Cowl member
205: Upper Cowl member
206: Side Cowl member LH
207: Bottom Cowl member
208: Side Cowl member RH
301: Top compartment
302: Bottom compartment
303: Reflecting surface
303a, 303b, and 303c: Plurality of projected portions of the reflector unit adjoining the headlamp lens
304a, b, c, d, e: Headlamp mounting provisions
401: Low beam light source
402: Printed circuit board 1
403: Printed circuit board 2
404: High beam light source
501: Low beam Printed Circuit Board fasteners
502: High beam Printed Circuit Board fasteners
503: Cowl assembly fasteners
504: Mounting provisions for Low beam Printed Circuit Board
505: Mounting provisions for High beam Printed Circuit Board
506: Interior region of Cowl assembly
507: Front cowl unit
508: Reflector unit
509: Rear cowl unit
X: Distance from headlamp assembly to light output on road
Y: Light output spread in left and right rear ends of the headlamp assembly
A: Conventional low beam light output
B: Low beam light output in accordance with present invention
Z-Z: perpendicular axis to the ground
a, b, c: plurality of zones of a headlamp assembly showcasing proximity of plurality of regions of the headlamp lens with the plurality of projected portions of the reflector unit