FORM 2
THE PATENTS ACT, 1970
(39 of 1970)
&
THE PATENTS RULES, 2003
COMPLETE SPECIFICATION
(See section 10, rule 13) “A MONO PROJECTOR LAMP FOR A VEHICLE”
MINDA INDUSTRIES LIMITED, an Indian company of Gat no. 148, Mhalunge Ingale, Off Chakan-Talegaon Road, Pune, Maharashtra 410501, India
The following specification particularly describes the invention and the manner in which it is to be performed.

TECHNICAL FIELD
The present disclosure relates to the area of optical designing. Particularly, the present disclosure relates mono projector lamp for automotive vehicle. More particularly, the present disclosure relates to a mini projector with single function for automobile vehicle.
BACKGROUND
The information in this section merely provides background information related to the present disclosure and may not constitute prior art(s).
The safety of driving relates to automotive headlamps’ quality. When the vehicle is running at night, headlamps not only illuminate the road ahead to provide drivers with a bright and broad vision, but also avoid causing drivers glare. With the development of automobile technology, customers have increasingly high-quality demands for headlamps. Headlamp forms an important and integral part of a motor vehicle. The headlamp generally comprises a housing and a lens which together create an enclosed compartment or a chamber. In the existing technology, the projector lamp with H7, H9 or H11 halogen bulb are already know. However, there are several limitations of halogen bulbs such as high consumption of power and generation heat which have leads to melting of adjacent components. Traditionally, halogen lamps and high-intensity discharge lamps (HIDs) are often used as the light sources in the headlamp. However, owing to long lifetime, high luminous efficacy and reliability of the LEDs, these have been popular sources of headlamp illumination. To overcome the limitations of halogen bulbs, LEDs are normally used as a light source in projector lamps.
LEDs have advantages of long service life, low power consumption, small packaging, very short switching time, and anti-vibration, compared with conventional light sources

of headlamps. In addition, LEDs have the mounting depth on the order of millimeter. Since high-power LEDs are gradually being applied to an increasing number of illumination devices, an increasing number of researchers are interested in designing the LED-based headlamps. Generally, for low beam and high beam same type of lighting technology used due to space availability reason however there us a need to have a compact size lamp with different technology that can be used for high beam function. The lamp know in the art are having round shape lens with complex construction and multiple parts. The size of the lamp is high with less light output and which is just meeting homologation. Also, in the existing lamps cut off plate is needed. Thus, due to above limitations, they act as a constrains for designing compact lamps
Therefore, there exists a significant need for further improvements in the design of the headlamp. The present disclosure is directed to address one or more problems as discussed above or other problems associated with the art
SUMMARY OF THE DISCLOSURE
The one or more shortcomings of the prior art are overcome by an assembly as claimed and additional advantages are provided through the provision of assembly as claimed in the present disclosure. Additional features and advantages are realized through the techniques of the present disclosure. Other embodiments and aspects of the disclosure are described in detail herein and are considered a part of the claimed disclosure.
In a non-limiting embodiment of the disclosure a mono projector lamp for a vehicle comprising a housing having an open end and close end. A PCB module positioned on the open end of the housing having a single light emitting diode with an axis (X-X). A collimator lens mounted on the PCB module having a front face and a rear face wherein the front face is protruded axially from the rear face . An outer lens having an axis (Y-Y) mounted on the open end of the housing comprising an open end and a

close end wherein the close end is having a curvature to refract the light and the axis of the outer lens is offset with the axis (X-X) of the light emitting diode.
In an embodiment the surface of the housing between the open and close end has a fin structure made of a material with a relatively high thermal conductivity and/or thermal diffusivity which allows for efficient heat dissipation.
In an embodiment the single light emitting diode acts as a light source of the lamp and is configured to provide the projector lamp with single function for the vehicle.
In an embodiment the collimator lens is mounted to the PCB module by means of fasteners and the collimator lens collects the light from the light emitting diode and transmits to the outer lens.
In an embodiment the shape of the collimator lens corresponds to the shape of the outer lens.
In an embodiment the mono projector comprises a breather through which hot air from the lamp vent out so to keep the temperature of the lamp in the permissible range.
In an embodiment the housing comprises a provision to fill the sealant to protect the lamp from dust and water.
In an embodiment the housing comprises brackets to enable the mounting of lamp on the vehicle.
In an embodiment the shape of outer lens is ellipsoidal.

In an embodiment the outer lens is configured to spread the light to meet the light performance requirement of the headlamp in the low beam function. .
BRIEF DESCRIPTION OF THE ACCOMPANYING FIGURES
Further aspects and advantages of the present invention will be readily understood from the following detailed description with reference to the accompanying figure(s). The figure(s) together with a detailed description below, are incorporated in and form part of the specification, and serve to further illustrate the embodiments and explain various principles and advantages, in accordance with the present invention wherein:
Figure 1 illustrates exploded view of the mono function projector lamp of the present disclosure according to an embodiment.
Figure 2 and 3 illustrates the perspective view of mono function projector lamp according to an embodiment of the present disclosure.
Figure 4 illustrates the front view of lamp in accordance with the embodiment of present disclosure.
Figure 5 shows the front view of lamp without outer lens.
Figure 6 shows the front view of lamp without outer and inner lens.
Figure 7 and 8 shows sectional view along G-G shown in Figure 4.
Figure 9 shows sectional view along E-E shown in Figure 4.
Figure 10 shows sectional view along F-F shown in Figure 4.

Figure 11 shows perspective view of collimator lens in accordance with the embodiment of present disclosure.
Skilled artisans will appreciate that elements in the drawings are illustrated for simplicity and have not necessarily been drawn to scale. For example, the dimensions of some of the elements in the drawings may be exaggerated relative to other elements to help to improve understanding of embodiments of the present invention.
DETAILED DESCRIPTION OF THE DISCLOSURE
While the invention is susceptible to various modifications and alternative forms, specific embodiment thereof has been shown by way of example in the figures and will be described in detail below. It should be understood, however that it is not intended to limit the invention to the particular forms disclosed, but on the contrary, the invention is to cover all modifications, equivalents, and alternative falling within the spirit and the scope of the invention.
Before describing in detail embodiments, it may be observed that the novelty and inventive step that are in accordance with the present disclosure resides mini projector with single function for automobile vehicle. It is to be noted that a person skilled in the art can be motivated from the present disclosure and modify the various components of the system. However, such modification should be construed within the scope and spirit of the invention. Accordingly, the drawing(s) are showing only those specific details that are pertinent to understanding the embodiments of the present invention so as not to obscure the disclosure with details that will be readily apparent to those of ordinary skill in the art having benefit of the description herein.
The terms “comprises”, “comprising”, or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a setup, device that comprises a list of components does not include only those components but may include other

components not expressly listed or inherent to such setup or device. In other words, one or more elements in a system or apparatus proceeded by “comprises… a” does not, without more constraints, preclude the existence of other elements or additional elements in the system or apparatus.
Accordingly, the present disclosure relates to mono function projector lamp of low beam function for automotive lighting. The construction of the lamp is simple with lens, inner collimator lens, light emitting diode (LED) PCB and housing or heat sink parts. The lamp is sealed assembly module which protects it from water, air and dust proof with IP67 Protection. The lamp of the present disclosure may be used for interior or exterior application. This lamp has low weight and consume low power. The lens dimension of this lamp is very compact. In the present lamp, one number two chip LED is used as light source. The orientation of LED PCB is vertical and assembled on housing with LED facing in front direction. The LED is placed little upward in vertical direction than lens center axis. The lamp disclosed in the preset disclosure are having two screws which are used to assemble inner lens and LED PCB together inside the housing. The outer lens is assembled on housing by using sealant. This lamp also meets homologation regulations of automotive lighting. The mechanical provision are also provided on housing on three sides for lamp for mounting of lamp as well as aiming in horizontal and vertical direction. This mounting can be achieved by using pivot and grommet at this place.
Referring to FIG. 1, 2 and 3, an exploded view along with the perspective of a mono function projector lamp (1) is disclosed. The mono function projector lamp herein referred as projector lamp comprising a housing/heat sink (2). In the present disclosure the term housing or heat sink are interchangeably used referring to same component. The housing (2) having an open (2a) and a closed (2b) end. The open end (2a) has a cavity to accommodate all the different components of the lamp (1). The surface of the housing between the open and close end are having a fin structure that allows for

efficient heat dissipation. The housing may preferably be made of a material with a relatively high thermal conductivity and/or thermal diffusivity, such as for example, aluminum.
The open end of the housing secures a PCB module (3). The PCB module (3) comprises a single LED (4) with two chip as seen in Fig 6. The PCB module (3) is rigidly supported in the housing (2). The single LED (4) acts as a light source of the lamp (1). In an embodiment of the present disclosure only a single LED is used which provides a mini projector lamp with single function for automobile vehicle. A collimator lens (5) is mounted on the PCB module (3).
The collimator lens is having a front face (5a) and a rear face (5b). The rear face is placed on the PCB module (3) by means of the fasteners (6). The front face (5a) is protruded axially from the rear face (5b) and is secured inside an outer lens (7). The shape of the collimator lens corresponds to the shape of the outer lens (7) and is designed in accordance with the shape of the outer lens. The outer lens is having an open end (7a) and a closed end (7b). The open end (7a) has secures the front face (6a) of the collimator lens (5) and through the closed end (7b), the light passes to the surrounding.
The mono projector lamp (1) also comprises of breather (8) as shown in figure 1 and 3 through which hot air from the lamp are vent out so to keep the temperature of the lamp in the permissible range. The housing (2) also comprises of a provision (9) to fill the sealant (as seen in figure 3) so to protect the lamp from dust and water. The lamp (1) further comprises brackets (10) which enables the mounting of lamp on the vehicle. In an embodiment of the present disclosure, the shape of outer lens (7) is ellipsoidal. In an embodiments of the present disclose and referring to figure 7- 9, the central axis (X-X) of LED is offset to the central axis (Y-Y)of lens which enables the functioning of

the lamp and achieve the similar output which is achieved when two LEDs and two lenses are used.
During the working of the lamp (1) as shown in Fig 9 and 10, the light from the LED (4) is collected by the collimator lens (5). The collimator lens (5) transmits the collected light to the outer lens (7). The outer lens (7) further refracts the light so to provide homogenous distribution of light to the surrounding. The collimator lens (5) may be configured to collect and collimate the light. The collimator lens (5) is made of transparent material with light weight. The collimator lens (5) may be made of suitable materials known in the art to withstand the higher LED temperatures and to provide appropriate optical properties. The outer lens (7) is used to spread the light to meet the light performance requirement of the headlamp (1) in the low beam function. The bracket (10) as shown in FIG. 2 is configured for attachment to a vehicle structural member in the present embodiment. The bracket (10) is used to mount the miniature projector lamp (1) through the fasteners.
The present disclosure relates to a mini projector lamp with single function for automobile vehicle. The lamp disclosed in the present disclosure is having a compact size lamp with low weight and IP67 protection. The lamp may be used directly on vehicle for exterior lighting application and consume very low power. The lamp disclosed in the present disclosure is an automotive lamp having multiple design options, more wide and high brightness light with better control on individual beam pattern. The lens is also customized based on the overall appearance of the lamp. Due to compactness and simple construction this is cost effective solution and is best solution for electrical vehicle.
From the above description, it is clear that the present disclosure is well adapted to carry out the objects and to attain the advantages mentioned herein as well as those inherent in the invention. While a presently preferred embodiment of the invention has

been described for purposes of this disclosure, it will be understood that numerous changes may be made which will readily suggest themselves to those skilled in the art. Thus, changes may be made in the embodiments of the invention described herein, or in the parts or the elements of the embodiments described herein, or in the steps or sequence of steps of the methods described herein, without departing from the spirit and/or the scope of the invention.
Equivalents:
The embodiments herein and the various features and advantageous details thereof are explained with reference to the non-limiting embodiments in the description. Descriptions of well-known components and processing techniques are omitted so as to not unnecessarily obscure the embodiments herein. The examples used herein are intended merely to facilitate an understanding of ways in which the embodiments herein may be practiced and to further enable those of skill in the art to practice the embodiments herein. Accordingly, the examples should not be construed as limiting the scope of the embodiments herein.
The foregoing description of the specific embodiments will so fully reveal the general nature of the embodiments herein that others can, by applying current knowledge, readily modify and/or adapt for various applications such specific embodiments without departing from the generic concept, and, therefore, such adaptations and modifications should and are intended to be comprehended within the meaning and range of equivalents of the disclosed embodiments. It is to be understood that the phraseology or terminology employed herein is for the purpose of description and not of limitation. Therefore, while the embodiments herein have been described in terms of preferred embodiments, those skilled in the art will recognize that the embodiments herein can be practiced with modification within the spirit and scope of the embodiments as described herein.

Throughout this specification the word “comprise”, or variations such as “comprises” or “comprising”, will be understood to imply the inclusion of a stated element, integer or step, or group of elements, integers or steps, but not the exclusion of any other element, integer or step, or group of elements, integers or steps.
The use of the expression “at least” or “at least one” suggests the use of one or more elements or ingredients or quantities, as the use may be in the embodiment of the disclosure to achieve one or more of the desired objects or results.
Any discussion of documents, acts, materials, devices, articles and the like that has been included in this specification is solely for the purpose of providing a context for the disclosure. It is not to be taken as an admission that any or all of these matters form a part of the prior art base or were common general knowledge in the field relevant to the disclosure as it existed anywhere before the priority date of this application.
The numerical values mentioned for the various physical parameters, dimensions or quantities are only approximations and it is envisaged that the values higher/lower than the numerical values assigned to the parameters, dimensions or quantities fall within the scope of the disclosure, unless there is a statement in the specification specific to the contrary.
While considerable emphasis has been placed herein on the particular features of this disclosure, it will be appreciated that various modifications can be made, and that many changes can be made in the preferred embodiments without departing from the principles of the disclosure. These and other modifications in the nature of the disclosure or the preferred embodiments will be apparent to those skilled in the art from the disclosure herein, whereby it is to be distinctly understood that the foregoing descriptive matter is to be interpreted merely as illustrative of the disclosure and not as a limitation.

LIST OF REFERNCE NUMERALS

Mono function projector lamp (1)
Housing/heat sink (2)
PCB Module (3)
LED (4)
Collimator Lens (5)
Mounting Screws (6)
Outer Lens (7)
Breather (8)
Provision to insert Sealant (9)
Bracket (10)

WE CLAIM:
1. A mono projector lamp (1) for a vehicle comprising :
a housing (2) having an open end (2a) and close end (2b); a PCB module (3) positioned on the open end (2a) of the housing (2) having a single light emitting diode (4) with an axis (X-X) ; a collimator lens (5) mounted on the PCB module (5) having
- a front face (5a) and a rear face (5b) wherein the front face (5a) is protruded
axially from the rear face (5b) ;
an outer lens (7) having an axis (Y-Y) mounted on the open end (2a) of the housing (2) comprising :
- an open end (7a) and a close end (7b) wherein the close end (6b) is having a curvature to refract the light and
- the axis (Y-Y) of the outer lens is offset with the axis (X-X) of the light emitting diode (4).

2. The mono projector lamp (1) as claimed in claim 1 wherein the surface of the housing (2) between the open (2a) and close end (2b) have a fin structure made of a material with a relatively high thermal conductivity and/or thermal diffusivity which allows for efficient heat dissipation.
3. The mono projector lamp (1) as claimed in claim 1 wherein the single light emitting diode (4) acts as a light source of the projector lamp (1) and is configured to provide the projector lamp (1) with single function for the vehicle.
4. The mono projector lamp (1) as claimed in claim 1 wherein the collimator lens (5)
is mounted to the PCB module (3) by means of fasteners (6) and the collimator lens
(5) collects the light from the light emitting diode (4) and transmits to the outer lens
(7).

5. The mono projector lamp (1) as claimed in claim 1 wherein the shape of the
collimator lens (5) corresponds to the shape of the outer lens (7).
6. The mono projector lamp (1) as claimed in claim 1 wherein the mono projector lamp (1) comprises a breather (8) through which hot air from the lamp vent out so to keep the temperature of the lamp in the permissible range.
7. The mono projector lamp (1) as claimed in claim 1 the housing (2) comprises a provision (9) to fill the sealant to protect the lamp from dust and water.
8. The mono projector lamp (1) as claimed in claim 1 wherein the housing comprises brackets (10) to enable the mounting of lamp on the vehicle.
9. The mono projector lamp (1) as claimed in claim 1, wherein the shape of outer lens (7) is ellipsoidal.
10. The mono projector lamp (1) as claimed in claim 1, wherein the outer lens (7) is
configured to spread the light to meet the light performance requirement of the
headlamp (1) in the low beam function. .