TECHNICAL FIELD
[001] The present disclosure generally relates to the field of optics. Particularly, but not exclusively, the present disclosure relates to a light projection device that is capable to form a light image and provide uniform illumination as well.
BACKGROUND OF THE DISCLOSURE
[002] The information in this section merely provides background information related to the present disclosure and may not constitute prior art(s) for the present disclosure.
[003] Image/logo projectors and interior lights for vehicles are well known in the art. The image projectors and interior lights are mainly used in vehicles such as two-wheelers, three-wheelers, four-wheelers, and the like to aid in providing an aesthetic look of the vehicle. Besides, there are many places where the image projectors and welcome lights are used, for example: in traffic lights, in the decoration of homes and/or offices, in the branding of products and/or companies, etc. The primary function of the image projector is to form an image of the light that recites a shape of the desired pattern such as a logo of the vehicle in the form of light. The function of the interior lights is to provide illumination inside the vehicle at desired places to ensure the aesthetic look of the vehicle.
[004] Typically, to perform the above functions, two different devices are used. For example, one device i.e. conventional image projector is provided for forming the image from the light, and the other device i.e. conventional interior light is provided for illumination in the vehicle. These two devices have two separate bodies that have two light elements to illuminate each of the devices separately. These light elements are connected to an electrical power source to perform the above functions. Accordingly, this arrangement requires more energy for their functioning.
[005] In addition, such arrangements require two different connections to connect the light elements to the electrical power source. Also, this arrangement requires at least two lenses, and other components to perform the above functions. Accordingly, the devices require more space to accommodate these components. Further, these devices require more space to be installed at the places where the above functions are desired to be performed.

[006] Accordingly, there is a need for a light projection device that is capable to perform the above-recited functions with less power consumption and overcomes the aforementioned one or more limitations of the conventional image projector and interior lights for the vehicles.
[007] The present disclosure is directed to overcome one or more limitations stated above or any other limitations associated with the prior art.
SUMMARY OF THE DISCLOSURE
[008] The one or more shortcomings of the prior art are overcome by the system/assembly as claimed, and additional advantages are provided through the provision of the system/assembly/method 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 one non-limiting embodiment of the present disclosure, a light projection device is disclosed. The light projection device comprises a light source, a lens, an image forming element, one or more projection lenses, and an optical element. The light source is configured to generate light beams. The lens is positioned downstream from the light source. The lens is configured to receive, and redirect the light beams forward in an optical path defined by the light beams. The optical element is positioned downstream to the lens in the optical path and configured to allow a first portion of the light beams to pass there through and reflect a second portion of the light beams. The image forming element is positioned downstream to the optical element in the optical path and configured to form a light image by transmitting the first portion of the light beams there through. The one or more projection lenses are positioned downstream to the image forming element in the optical path and configured to magnify the light image formed by the image forming element.
[009] In an embodiment of the present disclosure, the optical element is oriented between the lens and the image forming element such that the optical element receives the light beams from the lens, allows the first portion of the light beams to pass through

to the image forming element for forming the light image and reflects the second portion of the light beams for illumination.
[010] In an embodiment of the present disclosure, the first portion of the light beams has wavelength different from wavelength of the second portion of the light beams.
[Oil] In an embodiment of the present disclosure, the optical element is a dichroic medium.
[012] In an embodiment of the present disclosure, the image forming element includes an image pattern configured to allow the first portion of the light beams to pass there through to project the light image.
[013] In an embodiment of the present disclosure, the light source, the lens, the optical element, the image forming element, and the one or more projection lenses are housed by a housing.
[014] In an embodiment of the present disclosure, the light source, the lens, the image forming element, and the one or more projection lenses are aligned coaxially relative to each other.
[015] In an embodiment of the present disclosure, the second portion of the light beams is reflected by the optical element at some angle from a point of the light beams incident on the optical element.
[016] In non-limiting embodiment of the present disclosure, a light projection device is disclosed. The light projection device comprises a light source, a lens, an image forming element, one or more projection lenses, an optical element, and a diffuser. The lens is positioned downstream to the light source, the lens is configured to receive, and indirect the light beams forward in an optical path defined by the light beams. The image forming element is positioned downstream to the lens in the optical path; the image forming element is configured to form a light image by transmitting the light beams there through. The optical element is positioned downstream to the image forming element in the optical path and configured to allow a first portion of the light

image to pass there through and reflect a second portion of the light image. The one or more projection lenses are positioned downstream to the optical element in the optical path and configured to magnify the first portion of the light image received from the optical element. The diffuser is configured to disperse the second portion of the light image received from the optical element for illumination. The optical element is a dichroic medium.
[017] In an embodiment of the present disclosure, the optical element is oriented between the image forming element and the one or more projection lenses such that the optical element receives the light image from the lens, and allows the first portion of the light image to pass through to the one or more projection lenses for magnifying the light image and reflects the second portion of the light beams to project at the diffuser for illumination.
[018] It is to be understood that the aspects and embodiments of the disclosure described above may be used in any combination with each other. Several of the aspects and embodiments may be combined together to form a further embodiment of the disclosure.
[019] The foregoing summary is illustrative only and is not intended to be in any way limiting. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features will become apparent by reference to the drawings and the following detailed description.
BRIEF DESCRIPTION OF THE ACCOMPANYING DRAWINGS
[020] The novel features and characteristics of the disclosure are set forth in the description. The disclosure itself, however, as well as a preferred mode of use, further objectives, and advantages thereof, will best be understood by reference to the following description of an illustrative embodiment when read in conjunction with the accompanying drawings. One or more embodiments are now described, by way of example only, with reference to the accompanying drawings wherein like reference numerals represent like elements and in which:

[021] Figure 1 illustrates a schematic view of a light projection device, according to an embodiment of the present disclosure.
[022] Figure 2 illustrates a schematic view of a light projection device, according to another embodiment of the present disclosure.
[023] 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 improve understanding of embodiments of the present disclosure.
DETAILED DESCRIPTION
[024] While the disclosure is susceptible to various modifications and alternative forms, specific embodiments thereof have been shown by way of example in the Figures and are described in detail below. However, it should be understood that it is not intended to limit the disclosure to the particular forms disclosed, on the contrary, the disclosure is to cover all modifications, equivalents, and alternatives falling within the scope of the disclosure as defined by the appended claims.
[025] Before describing detailed embodiments, it may be observed that the novelty and inventive step that are in accordance with the present disclosure resides in a light projection device. It is to be noted that a person skilled in art can be motivated by the present disclosure and modify the various constructions of the apparatus. However, such modification should be construed within the scope of the present disclosure. Accordingly, the drawings show only those specific details that are pertinent to understanding the embodiments of the present disclosure so as not to obscure the disclosure with details that will be readily apparent to those of ordinary skill in the art having the benefit of the description herein.
[026] In the present disclosure, the term "exemplary" is used herein to mean "serving as an example, instance, or illustration." Any embodiment or implementation of the present subject matter described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments.

[027] The terms "comprises", "comprising", or any other variations thereof, are intended to cover non-exclusive inclusions, such that a 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... " does not, without more constraints, preclude the existence of other elements or additional elements in the system or apparatus.
[028] The terms like "at least one" and "one or more" may be used interchangeably or in combination throughout the description.
[029] Embodiments of the disclosure disclose a light projection device that is capable to form a light image and provide proper illumination as well. Generally, vehicles are provided with an image/logo projector and an interior light system. The image projector is configured to form a light image whereas the interior light system provides illumination inside the vehicle at the desired places for the aesthetic look of the vehicle. Conventionally, these are two different devices that are required to be installed separately in the vehicle to perform both functions. Each of the devices has a light element and has a separate electrical connection with the electrical source of the vehicle. Such arrangements require more energy and space for installation in the vehicle.
[030] Accordingly, the present disclosure discloses a light projection device that is capable to perform both the above-mentioned functions. The light projection device comprises a light source, a lens, a image forming element, one or more projection lenses, and an optical element. The light source is configured to generate light beams. The lens is positioned downstream to the light source in an optical path. The lens is configured to direct the light beams forward in the optical path. The image forming element is positioned downstream to the lens in the optical path. The image forming element is configured to form a light image by transmitting the light beams there through. The one or more projection lenses are positioned downstream to the image forming element in the optical path. The one or more projection lenses are configured to magnify the light image formed by transmitting the light beams from the image forming element. Further, the optical element is positioned between the lens and the image forming element. The optical element is configured to allow a first portion of the

light beams received from the lens to pass there through and project towards the image forming element for forming the light image. The optical element is configured to reflect a second portion of the light beams received from the lens for illumination. The optical element is a dichroic medium. The above light projection device requires a single light source that includes a single electrical connection with an electrical source and eliminates some other corresponding components as compared to the conventional image projector and the interior light system. Accordingly, the light projection device eliminates the requirement of two separate devices to perform the above-mentioned functions. Further, the light projection device is simple, compact, and easy to manufacture.
[031] Reference will now be made to the exemplary embodiments of the disclosure, as illustrated in the accompanying drawings. Wherever possible, the same numerals will be used to refer to the same or like parts. Embodiments of the disclosure are described in the following paragraphs with reference to Figures 1 to 2. In Figures 1 to 2, the same element or elements which have the same functions are indicated by the same reference signs.
[032] Referring to Figures 1 to 2, a light projection device (100), according to an embodiment of the present disclosure, is depicted. The light projection device (100) is configured to form a light image (LI) and provide uniform illumination (ILL) as well at the desired places. There are mainly two functions that can be performed from a single device (100) of the present disclosure, one function is to form the light image (LI) and the other function is to provide uniform illumination (ILL). The light image (LI) is a desired image that is formed from the light beams (LB) such as a logo of the vehicle formed by a logo projection. The illumination (ILL) provided by the device (100) may be utilized to illuminate the interior of the vehicle. The "light projection device (100)" is hereinafter alternatively referred to as the "device". The device (100) comprises a housing (not shown). The housing is configured to house all the components of the light projection device (100). These components are structured in such a way that the light projection device (100) performs two separate functions with a single light source (10).

[033] Referring to Figure 1, the device (100) comprises a light source (10). The light source (10) is housed by the housing. The light source (10) is configured to generate light beams (LB) that propagate in a diverging profile. The light source (10) may be a halogen bulb or a Light Emitting Diode (LED) or the like. The light source (10) is connected to an electrical source to receive electricity for their functioning. The electrical source may be a storage battery of the vehicle.
[034] Referring back to Figure 1, the device (100) comprises a lens (15). The lens (15) is positioned downstream of the light source (10) in an optical path (OP) defined by the light beams (LB). The optical path (OP) may be referred to as a distance or a trajectory that the light beams follow as the light beams (LB) propagate through one or more optical mediums. The lens (15) is one example of the optical mediums through which the light beams (LB) pass. Apart from the lens (15), there are various optical mediums disclosed undermentioned in this disclosure, through which the light beams (LB) can pass. The lens (15) may be configured to receive, and redirect the light beams (LB) forward in the optical path (OP). The lens (15) may be configured to convert diverging profile of the received light beams (LB) into parallel wavelengths of the light beams (15) or the converging profile of the light beams (LB).
[035] In an embodiment, the device (100) comprises an optical element (30), as shown in Figure 1. The optical element (30) is configured to allow a First portion (FP) of the light beams (LB) to pass therethrough and reflect a second portion (SP) of the light beams (LB) at some angle from a point of the light beams (LB) incident on the optical element (30), as shown in Figure 1. The optical element (30) is a dichroic medium. The dichroic medium may be a dichroic mirror or a dichroic film. The dichroic medium has the property to transmit and reflect the light beams (LB) depending on the different wavelengths of the light beams (LB). The optical element (30) of the device (100) is designed to include the property of the dichroic medium such that the first portion of the light beams (LB) can be transmitted through the optical element (30) and the second portion (SP) of the light beams (LB) can be reflected by the optical element (30) at some angle from a point of the light beams (LB) incident on the optical element (30). The first portion (FP) of the light beams (LB) may be utilized to facilitate forming the light image (LI) whereas the second portion (SP) of the light beams (LB) may be utilized to facilitate providing illumination (ILL).

[036] In an embodiment, the first portion (FP) of the light beams (LB) has a wavelength different from the wavelength of the second portion (SP) of the light beams (LB), thereby the optical element (30) allows one portion of the light beams (LB) to pass there through and reflect the other portion of the light beams (LB). For example: if the light beams (LB) have a single wavelength means having single color, it can be passed through the optical element (30) to form the light image (LI). If the light beams (LB) have multiple wavelengths, these can be reflected by the optical element (30) for providing illumination (ILL). Such illumination (ILL) may be a polychromatic illumination that may be utilized to illuminate a seat of the vehicle or to illuminate the interior of the vehicle. The optical element (30) is designed in such a way that desired wavelengths can be transmitted and the rest of the wavelengths can be reflected by alteration in the dichroic film layers of the optical element (30). Thus, this device (100) may serve the light image (LI) in desirable projection colors such as red, blue, green etc.
[037] In an embodiment, the optical element (30) is oriented between the lens (15) and an image forming element (20), as shown in Figure 1. The image forming element (20) is positioned downstream to the optical element (30) in the optical path (OP). The image forming element (20) is configured to form the light image (LI) by transmitting the light beams (LB) therethrough. The image forming element (20) comprises an image pattern (not shown). The image pattern may have one or more thorough cut-outs by which the light beams (LB) pass. The image pattern has a shape that is corresponding to the desired light image (LI). In an embodiment, the image forming element (20) allows the received first portion (FP) of the light beams (LB) to pass therethrough and projects the light image (LI) to further one or more projection lenses (25) of the device (100).
[038] In an embodiment, the projection lenses (25) are positioned downstream to the image forming element (20) in the optical path (OP), as shown in Figure 1. The projection lenses (25) are configured to magnify the light image (LI) formed by the image forming element (20). The light image (LI) magnified by the projection lenses (25) is further displayed at the desired distance. The projection lenses (25) are placed

at a predefined distance from the image forming element (20). The predefined distance may be maintained to form the light image (LI) in the desired size.
[039] In another embodiment, the image forming element (20) is positioned upstream of the optical element (30) in the optical path (OP), as shown in Figure 2. Further, the image forming element (20) is positioned downstream to the lens (15) in the optical path (OP). The image forming element (20) is configured to form a light image (LI) by transmitting the light beams (LB) therethrough. The optical element (30) is positioned downstream to the image forming element (20) in the optical path (OP). The optical element (30) is configured to allow a first portion (FP) of the light image (LI) to pass there through and reflect a second portion (SP) of the light image (LI). The one or more projection lenses (25) are positioned downstream to the optical element (30) in the optical path (OP). The projection lenses (25) are configured to magnify the first portion (FP) of the light image (LI) received from the optical element (30). The optical element (30) is oriented between the image forming element (20) and the projection lenses (25). This structure of the device (100) is configured to increase the distance between the image forming element (20) and the projection lenses (25) without increasing the overall size of the device (100). The increased distance between the image forming element (20) and the projection lenses (25) affects the size of the light image (LI) prepared by the image forming element (20). For example, if the distance between the image forming element (20) and the projection lenses (25) is large, the size of the light image (LI) becomes larger.
[040] Referring to Figure 2, the optical element (30) is oriented between the image forming element (20) and the one or more projection lenses (25) such that the optical element (30) receives the light image (LI) from the lens (15), allows the first portion (FP) of the light image (LI) to pass through to the one or more projection lenses (15) for magnifying the light image (LI) and reflects the second portion (SP) of the light image (LI) to project at a diffuser (40) for illumination (ILL). The diffuser (40) is configured to scatter the second portion (SP) of the light image (LI) for uniform illumination (ILL). The light beams (LB) generated by the light source (10) diverge to the lens (15) positioned downstream of the light source (10). The lens (15) converts the diverged light beams (LB) into parallel wavelengths or converged light beams (LB) and redirects the said light beams (LB) further to the image forming element (20). The light

beams (LB) are passed through the image forming element (20) and formed the light image (LI). The light image (LI) in the form of light beams (LB) is directed by the image forming element (20) to the optical element (30). The optical element (30) allows the first portion (FP) of the light beams/light image to pass there through and reflects the second portion (SP) of the light beams/light image at some angle from a point of the light beams/light image incident on the optical element (30). The first portion (FP) of the light beams/light image is directed to the projection lens (25) to magnify the first portion (FP) of the light beams/light image for display at the desired distance whereas the second portion (SP) of the light beams/light image reflected from the optical element (30) is projected on the diffuser (40), as shown in Figure 2. The second portion (SP) of the light beams/light image is further scattered by the diffuser (40) to provide uniform illumination (ILL).
[041] Referring to Figures 1 and 2, the light source (10), the lens (15), the image forming element (20), and the projection lenses (25) are aligned coaxially relative to each other. The optical element (30) may be oriented at an angle to effectively pass the first portion (FP) of the light beams/light image there through for forming the light image (LI) and reflect the second portion (SP) of the light beams/light image for illumination (ILL). The light source (10), the lens (15), the optical element (30), the image forming element (20), and the projection lenses (25) are housed by the housing.
[042] In accordance with the present disclosure, the light projection device (100), as explained in the above paragraphs, is capable to form the light image (LI) and provide uniform illumination (ILL) as well for different functions. Further, the above device (100) is simple, compact, and easy to manufacture. Furthermore, the involvement of a single light source (10) enables this device (100) to save more energy.
[043] The various embodiments of the present disclosure have been described above with reference to the accompanying drawings. The present disclosure is not limited to the illustrated embodiments; rather, these embodiments are intended to fully and completely disclose the subject matter of the disclosure to those skilled in this art. In the drawings, like numbers refer to like elements throughout. The thicknesses and dimensions of some components may be exaggerated for clarity.

[044] Herein, the terms "attached", "connected", "interconnected", "contacting", "mounted", "coupled" and the like can mean either direct or indirect attachment or contact between elements, unless stated otherwise.
[045] Well-known functions or constructions may not be described in detail for brevity and/or clarity. As used herein, the expression "and/or" includes any and all combinations of one or more of the associated listed items.
[046] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises", "comprising", "includes" and/or "including" when used in this specification, specify the presence of stated features, operations, elements, and/or components but do not preclude the presence or addition of one or more other features, operations, elements, components, and/or groups thereof.
[047] 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 REFERENCE NUMERALS

Sr. No. Description
100 Light projection device
10 Light source
15 Lens

20 Image forming element
25 Projection lenses
30 Optical element
40 Diffuser
LI Light image
ILL Illumination
LB Light beams
OP Optical path
FP First portion
SP Second portion

[048] 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 skilled 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.
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.

We claim:

1. A light projection device (100), the device comprising:
a light source (10) configured to generate light beams (LB);
a lens (15) positioned in front of the light source (10), the lens (15) is configured to receive and redirect the received light beams (LB) forward in an optical path (OP) defined by the light beams (LB);
an optical element (30) positioned after the lens (15) in the optical path (OP) and configured to transmit a first portion (FP) of the light beams (LB) through the optical element (30) and to reflect a second portion (SP) of the light beams (LB);
an image forming element (20) positioned after the optical element (30) in the optical path (OP) and configured to form a light image (LI) by transmitting the first portion (FP) of the light beams (LB) through it;
one or more projection lenses (25) positioned downstream to the image forming element (20) in the optical path (OP) and configured to magnify the light image (LI) formed by the image forming element (20).
2. The device (100) as claimed in claim 1, wherein the optical element (30) is oriented between the lens (15) and the image forming element (20) such that the optical element (30) receives the light beams (LB) from the lens (15), allows the first portion (FP) of the light beams (LB) to pass through to the image forming element (20) for forming the light image (LI) and reflects the second portion (SP) of the light beams (LB) for illumination (ILL).
3. The device (100) as claimed in claim 1, wherein the first portion (FP) of the light beams (LB) has wavelength different from wavelength of the second portion (SP) of the light beams (LB).
4. The device (100) as claimed in claim 1, wherein the optical element (30) is a dichroic medium.
5. The device (100) as claimed in claim 1, wherein the image forming element (20) includes an image pattern configured to allow the first portion (FP) of the light beams (LB) to pass through to form the light image (LI).

6. The device (100) as claimed in claim 1, wherein the light source (10), the lens (15), the image forming element (20), and the one or more projection lenses (25) are aligned coaxially relative to each other.
7. The device (100) as claimed in claim 1, wherein the light source (10), the lens (15), the optical element (30), the image forming element (20), and the one or more projection lenses (25) are housed by a housing.
8. The device (100) as claimed in claim 1, wherein the second portion (SP) of the light beams (LB) is reflected by the optical element (30) at some angle from a point of the light beams (LB) incident on the optical element (30).
9. A light projection device (100), the device comprising:
a light source (10) configured to generate light beams (LB);
a lens (15) positioned in front of the light source (10), the lens (15) is configured to receive, and redirect the received light beams (LB) forward in an optical path (OP) defined by the light beams (LB);
an image forming element (20) positioned downstream to the lens (15) in the optical path (OP), the image forming element (20) is configured to form a light image (LI) by transmitting the light beams (LB) there through;
an optical element (30) positioned after the image forming element (20) in the optical path (OP) and configured to transmit a first portion (FP) of the light image (LI) through the optical element (30) and to reflect a second portion (SP) of the light image (Li);
one or more projection lenses (25) positioned after the optical element (30) in the optical path (OP) and configured to magnify the first portion (FP) of the light image (LI) received from the optical element (30);
a diffuser (40) configured to disperse the second portion (SP) of the light image (LI) received from the optical element (30) for illumination (ILL),
wherein the optical element (30) is a dichroic medium.
10. The device (100) as claimed in claim 9, wherein the optical element (30) is
oriented between the image forming element (20) and the one or more projection lenses
(25) such that the optical element (30) receives the light image (LI) from the lens (15),

allows the first portion (FP) of the light image (LI) to pass through to the one or more projection lenses (25) for magnifying the light image (LI) and reflects the second portion (SP) of the light image (LI) to project at the diffuser (40) for illumination (ILL).