FORM 2
THE PATENTS ACT 1970
[39 OF 1970]
&
THE PATENTS RULES, 2003
COMPLETE SPECIFICATION
[See section 10 and Rule 13]
TITLE: “A SYSTEM FOR CONTROLLING VISIBILITY OF A WINDOW OF A VEHICLE AND A METHOD THEREOF”
NAME AND ADDRESS OF THE APPLICANT:
TATA MOTORS LIMITED, an Indian company having its registered office at Bombay house, 24 Homi Mody Street, Hutatma Chowk, Mumbai 400 001, Maharashtra, India.
NATIONALITY: Indian.
The following specification particularly describes the invention and the manner in which it is to be performed.

TECHNICAL FIELD
Present disclosure relates to a field of automobiles. Particularly, but not exclusively the present disclosure relates to controlled visibility of windows in a vehicle. Further, embodiments of the disclosure disclose a system and a method for controlling the visibility of the window of the vehicle.
BACKGROUND OF THE DISCLOSURE
In general, windows employed for side doors of a vehicle, are made of a pane of safety glass that may be clear or laminated or tempered or tinted or coloured or shaded, to protect interior of the vehicle from sun's harmful rays and also to provide privacy to occupants of the vehicle. Generally, a conventional window is positioned between an inner and an outer door panels, and mounted to a motor operated mechanism provided on the door, so that it can be raised and lowered. When fully raised, these conventional window enables occupants to see through the door’s window opening. However, difficulties of using windows that are laminated, tempered, tinted, coloured, or shaded, is: an invariable constant light reduction and a complete darkening of entire field of view for the occupants/ driver. Also in some countries, tinted windows are illegal and hence many manufacturers do not manufacture vehicles with such tinted or shaded/coloured safety glasses. Moreover, in some vehicles, the glasses are shaded by a foldable or collapsible blind, can be retrofitted on to the window to obstruct visibility into the interior of the vehicle. However, there is no mechanism to vary or adjust a level of visibility or transparency or visual light transmission through any of these blinds.
Additionally, technologies such as a smart glass involving electrochromic glass or suspended-particle device glass, changes its optical characteristics when driven by an electrical signal. This smart glass can be used as the window for the vehicle, to allow control over an amount of light and heat passing through this smart glass. However, such smart glass is expensive to manufacture, uses constant high supply of electricity, and requires complicated devices, and more importantly it requires considerable amount of time to change/switch its optical characteristics. Thereby, using any of the smart glass for the purpose of a vehicle window is practically and economically not feasible.

The present disclosure is directed to overcome one or more above limitations stated above or any other limitation associated with the prior arts.
SUMMARY OF THE DISCLOSURE
The shortcomings of the prior art are overcome, and additional advantages are provided through the provision of system of 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.
In one non-limiting embodiment of the present disclosure discloses a system for controlling visibility of a window of a vehicle. The system comprises a vehicle door having a frame defined with a window opening covered by a window glass. A guide structure is mounted to the frame along the window opening and the guide structure is defined with a plurality of guide channels. A plurality of blinder sheets is positioned within each of the plurality of guide channels and each of the plurality of blinder sheets are defined with varying transparency. The system further comprises a motor coupled to the plurality of blinder sheets to selectively move at least one of the plurality of blinder sheets into a first position covering the window glass and the blinder sheet is spaced apart from the window glass. Further, at least one sensor is configured to detect an intensity of the light within a cabin of the vehicle. A control unit of the system is configured to actuate the motor to selectively move at least one of the plurality of blinder sheets into the first position to selectively control the visibility of the window.
In an embodiment, the control unit is communicatively coupled with at least one sensor and the motor.
In an embodiment, the motor selectively moves at least one of the plurality of blinder sheets into a second positions uncovering the window glass.
In an embodiment, the control unit actuates the motor for selectively moving at least one of the plurality of blinder sheets between first position and the second position for controlling the visibility of the window based on the detected intensity of the light.

In an embodiment, the plurality of blinder sheets have varying transparency comprising high, medium and low darkening levels.
In an embodiment, comprises a run mold provided on the guide structure for preventing infiltration of air and moisture into the vehicle in the first position by sealing the structure.
In an embodiment, the cabin of the vehicle comprises a cabin environment within the vehicle and an ambient environment outside the vehicle.
In an embodiment, comprises a switch coupled to the control unit to manually actuate the motor to selectively move at least one of the plurality of blinder sheets into the first position or the second position.
In an embodiment, at least one sensor is selected from a group comprising a pyranometer sensor, a photodiode, a photoresistor, a phototransistor, and a photovoltaic light sensor.
In an embodiment, the control unit receives the intensity of light detected by the sensors and determines if the intensity of the light is within one or more predefined thresholds for selecting the at least one of a plurality of blinder sheets.
The present disclosure further includes a method for controlling visibility of a window of a vehicle. The method initially includes detecting an intensity of light in a cabin of the vehicle by at least one sensor. Later, intensity of the light is determined, by a control unit to check if intensity of the light is within one or more predefined thresholds. Further, selecting at least one of a plurality of blinder sheets by the control unit to cover a window glass of a vehicle door blinder and the method further includes actuating a motor by the control unit for selectively moving at least one of the plurality of blinder sheets into a first position covering the window opening having the window glass.
In an embodiment, the control unit selects at least one of the plurality of blinder sheets to uncover the window opening having the window glass, if the intensity of the light is below the predefined threshold. In another embodiment, the motor is actuated by the control unit for selectively moving at least one of the plurality of blinder sheets into a second position to uncover the window opening.

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.
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
The novel features and characteristic of the disclosure are set forth in the appended claims. 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 detailed description of an illustrative embodiment when read in conjunction with the accompanying figures. One or more embodiments are now described, by way of example only, with reference to the accompanying figures wherein like reference numerals represent like elements and in which:
Figure 1 illustrates a perspective view of a vehicle door having a system for controlling visibility of a window of a vehicle, in accordance with an embodiment of the present disclosure;
Figure 2a illustrates a sectional view of the vehicle door having a guide structure of the system of Figure 1;
Figure 2b illustrates a perspective view of the guide structure having guide channels of Figure 2;
Figure 3 illustrates a top view of an arrangement of plurality of blinding sheets, in accordance with an embodiment of the present disclosure;
Figure 4 illustrates a schematic view of the system for controlling visibility of a window of a vehicle, in accordance with an embodiment of the present disclosure; and

Figure 5 illustrates a schematic view of another embodiment of the system, in accordance with an embodiment of the present disclosure.
The figures depict embodiments of the disclosure for purposes of illustration only. One skilled in the art will readily recognize from the following description that alternative embodiments of the structures and methods illustrated herein may be employed without departing from the principles of the disclosure described herein.
DETAILED DESCRIPTION
The foregoing has broadly outlined the features and technical advantages of the present disclosure in order that the detailed description of the disclosure that follows may be better understood. Additional features and advantages of the disclosure will be described hereinafter which forms the subject of the claims of the disclosure. It should be appreciated by those skilled in the art that the conception and specific embodiment disclosed may be readily utilized as a basis for modifying or designing other mechanism for carrying out the same purposes of the present disclosure. It should also be realized by those skilled in the art that such equivalent constructions do not depart from the scope of the disclosure as set forth in the appended claims. The novel features which are believed to be characteristic of the disclosure, both as to its organization and method of operation, together with further objects and advantages will be better understood from the following description when considered in connection with the accompanying figures. It is to be expressly understood, however, that each of the figures is provided for the purpose of illustration and description only and is not intended as a definition of the limits of the present disclosure.
In the present disclosure, the word "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.
While the disclosure is susceptible to various modifications and alternative forms, specific embodiments thereof have been shown by way of example in the drawings and will be described in detail below. It should be understood, however that it is not intended to limit the disclosure to

the forms disclosed, but on the contrary, the disclosure is to cover all modifications, equivalents, and alternative falling within the spirit and the scope of the disclosure.
The terms “comprises”, “comprising”, or any other variations thereof, are intended to cover a non¬exclusive inclusions, such that a setup, device, or process that comprises a list of components or steps does not include only those components or steps but may include other components or steps not expressly listed or inherent to such setup or device or process. 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.
Typically, windows for doors of any vehicle, are made of a pane of safety glass that may be clear or laminated or tempered or tinted or coloured or shaded, to protect interior of the vehicle from sun's harmful rays. Further, such a conventional window is positioned between an inner and outer door panels, and mounted to a motor operated mechanism provided on the door, so that it can be raised and lowered. Also in some countries, tinted windows are illegal and hence many manufacturers do not manufacture vehicles with such tinted or shaded/coloured safety glasses. Moreover, in some vehicles, the glasses are shaded by a foldable or collapsible blind, can be retrofitted on to the window to obstruct visibility into the interior of the vehicle. Further, there is no mechanism to vary or adjust a level of visibility or transparency or visual light transmission of the window panels. However, such smart glass is expensive to manufacture, uses constant high supply of electricity, and requires complicated devices, and more importantly it requires considerable amount of time to change/switch its optical characteristics. Thereby, using any of the smart glass for the purpose of a vehicle window is practically and economically not feasible.
Accordingly, a system for controlling visibility of a window of a vehicle of the present disclosure is configured to overcome the problems associated with the conventional windows. The system of the present disclosure comprises a vehicle door having a frame defining a window opening. A guide structure is mounted to the window opening and is defined with a plurality of guide channels to support a plurality of blinder sheets within each of the plurality of guide channels. Further, each of the plurality of blinder sheets are defined with varying transparency and coupled with a motor. The motor is configured to selectively move at least one of the plurality of blinder sheets into a

first position covering the window opening having the window glass. The system also includes at least one sensor configured to detect an intensity of the light within a cabin of the vehicle. A control unit in communication with the sensor, is configured to actuate the motor to selectively move at least one of the plurality of blinder sheets into the first position to selectively control the visibility of the window. Therefore, the system of the present disclosure is suitable to achieve required coverage of the window as per the light intensity detected and user requirement.
Referring to Figures 1 to 5 which are exemplary embodiments of the present disclosure illustrating a system for controlling visibility of a window (100) for a vehicle (200) [interchangeably referred as “system (100)”].
The system (100) comprises a vehicle door (10) pivotally coupled to a vehicle body. The vehicle door (10) is suitably coupled to the vehicle body by a coupling means such as hinges (11). Further, the vehicle door (10) includes a frame (12) which defines the structure of the vehicle door (10) and defines a window opening (14) for the vehicle door (10) as referred in Figure 1. The vehicle door (10) may include an outer panel and an inner panel joined together to form a space therebetween. In an embodiment, the frame (12) may be configured within the space. The window opening (14) is defined within a portion of the vehicle door (10) to allow ambient air and/or light to enter into a cabin of the vehicle (200). This window opening (14) is duly covered by a window glass (16).
The system (100) further includes the vehicle door (10) having a guide structure (20) mounted to the frame (12) thereof. The guide structure (20) is mounted to the frame (12) along the window opening (14), referring to Figure 2a. The guide structure (20) is configured to support a plurality of blinder sheets (30). The guide structure (20) is defined with a plurality of guide channels (22) as shown in Figure 2b to movably support the plurality of blinder sheets (30). Each of the guide channel (22) may be at least one of a groove, or a slot partially or completely formed along an inner surface of the window frame (10) to accommodate at least one blinder sheet (30). Referring to Figure 1 to 2b, the guide structure (20) includes a bottom portion and an upper portion, such that the upper portion is defined along a periphery of the window opening (14) and the bottom portion is rigidly supported by the frame of the vehicle door (10) to accommodate the plurality of blinder sheets (30) positioned within each of the plurality of guide channels (22). The guide structure (20) aids in movement of the each of the blinder sheets (30) such that a portion of opposite

side edges of the blinder sheets (30) are supported within the guide channel (22) and move in between the bottom portion and the top portion of the guide structure (20) and vice-a-versa.
Referring to Figure 3,the plurality of blinder sheets (30) of the system (100) are formed with varying transparency. The plurality of blinder sheets (30) having varying transparency comprises low, medium and high, darkening levels (30a, 30b, 30c,). Further, in addition to the high, medium and low darkening level blinding sheets (30a, 30b, 30c), the window glass (16) is also provided to allow light to enter into the cabin of the vehicle (200) without any restriction or with minimal restriction. Each of the blinding sheets (30) as shown in Figure 3 are positioned within each of the guide channels (22) to slide and move within the guide structure (20). Each of the blinding sheets (30) may be stacked adjacent to one another in a spaced apart configuration. In an embodiment, the varying transparencies of the blinding sheets (30) is selected based on an intensity of the light within the cabin of the vehicle (200). For example, the transparent blinding sheets (30d) allows almost complete light rays to pass through, and provides complete visibility from the window, compared to the low darkening levels the blinding sheets (30a).The low darkening levels of the blinding sheets (30a) allows a partial amount of light to pass through when compared to the medium darkening blinding sheets (30b). Further, the highly darkened blinding sheets (30c) will further reduce the light rays to pass through compared to medium darkening blinding sheets (30b), thereby providing low visibility from the window. In an embodiment, the blinding sheets (30) may be made of material such as plastic, glass, fibre glass, thermoplastic, thermoelastic that is laminated, tempered, tinted, coloured or shaded as per a desired level of visibility. Further, the system (100) comprises a run mold (80) provided on the guide structure (20) for preventing infiltration of air and moisture into the vehicle (200) in the first position.
The system (100) further includes a motor (40) that is coupled with the plurality of blinder sheets (30) and window glass (16). The motor (40) is operated to move the window glass (16) up and subsequently selectively move at least one of the plurality of blinder sheets (30) into a first position, thereby covering the window opening (14) of the vehicle door (10), having the window glass (16). Further, the motor (40) may also displace the at least of the blinder sheet (30) and the window glass (16) in a second position, thereby uncovering the window opening (14). For example, at least one blinding sheet (30) is configured to be displaced from the first position to the second position, wherein the first position relates to covering of the window opening (14) having

the window glass (16) and the second position relates to uncovering of the window opening (14). In the first position. the blinder sheet (30), may be positioned just adjacent to the window glass (16) in a spaced apart configuration from the window glass. In an embodiment, each of the plurality of blinding sheets (30) may be connected to the motor via any linking mechanism or regulator [not shown in Figures] to slide and move to the first and the second position, respectively. In an embodiment, the linking means may be mechanical, hydraulic, pneumatic, or electric mechanism. In an example, the motor (40) may be actuated such that only one of the blinding sheet (30) is in first position to cover the window opening (14). In another aspect, the motor (40) may be actuated such that initially a window glass (16)) is in the first position and later based on the desired visibility, the motor (40) may be actuated to move at least one of low, medium or high darkening level blinding sheet (30a, 30b, 30c) from the second position to the first position, such that at least one of low, medium or high darkening level blinding sheet (30a, 30b, 30c) may be parallelly positioned adjacent to the window glass (16) which is may be a transparent or a translucent sheet or glass. Further, various combinations of one or more blinding sheets (30) can be moved to the first position for controlling a level of the visibility of the window based on user preference.
The system (100) further comprises at least one sensor (50) provided on the vehicle door (10) to detect the intensity of the light with the cabin of the vehicle (200). The cabin of the vehicle (200) may comprise a cabin environment within the vehicle (200) and an ambient environment outside the vehicle (200). The sensor (50) aids in detecting a light intensity value for comparing it with a threshold value of light intensity. This facilitates in selecting the desired blinding sheet to control the visibility of the window. Each of the blinding sheet (30) is moved to first position and the second position based on the threshold value determined for movement of each of the plurality of blinding sheets (30). In an embodiment, if a UV Index (Ultraviolet Index) is higher than 5, at least one blinding sheets (30) will be actuated. The blinding sheets (30) will be with darkening levels varying between 10% to 50% of VLT (Visible light transmission).
The least one sensor (50) is selected from a group comprising a pyranometer sensor, a photodiode, a photoresistor, a phototransistor, and a photovoltaic light sensor suitable to detect the light intensity value.

The system (100) further includes a control unit (60) configured to actuate the motor to selectively move at least one of the plurality of blinder sheets (30a, 30b, 30c) into the first position to selectively control the visibility of the window between 10% to 50% VLT (Visual light transmission. The control unit is communicatively coupled with the at least one sensor (50) and the motor (40). The control unit (60) actuates the motor (40) for selectively moving at least one of the plurality of blinder sheets (, 30a, 30b, 30c) into the first and the second position for controlling the visibility of the window based on the detected intensity of the light by the at least one sensor (50). The motor (40) may be switched between ON/OFF conditions. In an embodiment, in an ON condition the motor (40) the at least one of the plurality of blinding sheets (30) is displaced to the first position to cover the window glass (16). Likewise, in an OFF condition, the motor (40) moves the at least one of the plurality of blinding sheets (30) to in the second position to uncover the window or withdrawing the blinding sheet (30a, 30b,30c) with varying darkening level that was previously placed adjacent to the window glass (16). In another embodiment, the control unit (60) may be programmed to operate based on predefined threshold parameters of light intensity and may operate any one of the plurality of blinding sheets (30) in accordance to the detected light intensity by the sensor (50). In case the control unit (60) receives the intensity of light detected by the sensors (50) as an input signal and sends an output signal to the motor (40) for its actuation if the determined intensity of the light is within one or more predefined thresholds for selecting the at least one of a plurality of blinder sheets (30).
Referring to Figure 5, in another embodiment, a switch (70) may be provided to be manually operable by a user to trigger the motor (40) to selectively move the at least one of the plurality of blinder sheets (30) into the first position or the second position for controlling visibility of the window. In an embodiment, the switch (70) is preferably mounted to the vehicle door (10). In an embodiment, switch (70) is coupled to the control unit (60). In an embodiment, the control unit (60) is further communicatively coupled with a control panel (80). The control panel (80) may comprise one or more indicators such as a visibility level indicator, darkening level, detected light intensity value. The visibility level indicator allows the occupants to press the switch (70) to attain preferred visibility of the window. The control panel (80) may further include certain lock buttons to prevent accidental actuation of the motor (40) to control visibility.

The control unit (60) may be a control unit of the vehicle (200). In another embodiment, the system (100) may comprise a body control that is provided inside the window/ vehicle door (10). The body control unit may actuate the motor (40) to control the visibility of the window automatically or manually by the switch (70). The body control unit may be communicatively coupled with the sensors (50) via the vehicle control unit (60), sends signals to motor (40) that is connected to each blinding sheets (30) according to the light intensity value obtained from the sensors (50) to enables the light to partially be prevented from entering inside the vehicle (200). The control unit (60) and the body control unit may further comprise, a processor and a memory unit and are communicatively coupled to the processor. The processors can be implemented as one or more microprocessors, microcomputers, microcontrollers, digital signal processors, central processing units, state machines, logic circuitries, and/or any devices that manipulate signals based on operational instructions. The memory unit stores processor-executable instructions, which, on execution, causes the processor to receive one or more command signals associated with the user inputs from a user interface unit [not shown in Figures] or control panel of the system (100). In an embodiment, the user interface unit and the switch (70) is coupled to the control unit (60) to receive inputs from the user to operate the motor (40) and the blinding sheets (30) connected to the motor (40). The inputs received from the user include, but are not limited to type of blinding sheets, darkening level/ visibility level, position of the each of the blinding sheets, light intensity value within the cabin, temperature within the cabin, selection of blinding sheets, transparent sheet, and any essential details that are required to control the visibility of the window. In an embodiment, user interface can be an input/ output device to display graphical information related to system (100) to facilitate controlling of visibility of the window in the desired level.
Further, the system (100) may include a communication module [not shown in Figures] that facilitates an interaction of the system (100) with an application installable on a computing device, through which an operation of the system (100) may be configured and controlled remotely. In an embodiment, the computing device includes, but is not limited to laptop computer, a desktop computer, a notebook, a workstation, a mainframe computer, a server, a network server, cloud, hand-held device, wearable device, and the like. The communication of the system (100) with the computing device may occur through a wide variety of networks and protocol types, including wired networks, for example, LAN, cable, etc., and wireless networks, such as WLAN, cellular, or satellite. In an embodiment, the communication may occur via Bluetooth Low Energy, LoRa,

ZigBee, and the like. In an embodiment, a display of the computing device may also function as the user interface unit.
The window frame (10) of the present disclosure is fixed to at least a portion of the vehicle (200). The window frame (10) may be provided on a roof, windshield, or a rear window of the vehicle (200). The configuration of the window can be varied as per application requirements.
Following portions of the disclosure explains a method for operating the system (100). Initially, an intensity of light in a cabin of the vehicle (200) is detected by at least one sensor (30). Later, intensity of the light is determined, by a control unit based on a received light intensity value to check if the received light intensity value is within one or more predefined thresholds. Further, based on the determined light intensity, at least one of a plurality of blinder sheets (30) is selected and the control unit gives an output signal to actuate the motor (40) for selectively moving at least one of the plurality of blinder sheets (30) into a first position covering the window opening. In an embodiment, the control unit selects at least one of the plurality of blinder sheets (30) to uncover the window opening, if the intensity of the light is below the predefined threshold provided for each of the blinder sheet (30). In another embodiment, the motor (40) is actuated by the control unit (60) for selectively moving at least one of the plurality of blinder sheets (30) into a second position to uncover the window opening.
In an embodiment, the size, configuration of the components of system (100) may be varied according to the application requirement such as in cars, busses, heavy duty vehicles etc.
In an embodiment, the system (100) according to present disclosure the system (100) provides a cost-effective solution for controlling visibility of the window of the vehicle (200).
In an embodiment, the present disclosure provides the system (100) that is simple, compact and easy to install, and minimises number of wirings and components.
In an embodiment, the system (100) of the present disclosure protects occupants within the vehicle (200) from the intense ultraviolet rays and ambient conditions.

In an embodiment the system (100) of the present disclosure the occupants can selectively choose the required visibility within the cabin of the vehicle (200) based on the intensity of light detected by the sensor (50).
Equivalents:
With respect to the use of substantially any plural and/or singular terms herein, those having skill in the art can translate from the plural to the singular and/or from the singular to the plural as is appropriate to the context and/or application. The various singular/plural permutations may be expressly set forth herein for sake of clarity.
It will be understood by those within the art that, in general, terms used herein, and especially in the appended claims (e.g., bodies of the appended claims) are generally intended as “open” terms (e.g., the term “including” should be interpreted as “including but not limited to,” the term “having” should be interpreted as “having at least,” the term “includes” should be interpreted as “includes but is not limited to,” etc.). It will be further understood by those within the art that if a specific number of an introduced claim recitation is intended, such an intent will be explicitly recited in the claim, and in the absence of such recitation no such intent is present. For example, as an aid to understanding, the following appended claims may contain usage of the introductory phrases “at least one” and “one or more” to introduce claim recitations. However, the use of such phrases should not be construed to imply that the introduction of a claim recitation by the indefinite articles “a” or “an” limits any particular claim containing such introduced claim recitation to inventions containing only one such recitation, even when the same claim includes the introductory phrases “one or more” or “at least one” and indefinite articles such as “a” or “an” (e.g., “a” and/or “an” should typically be interpreted to mean “at least one” or “one or more”); the same holds true for the use of definite articles used to introduce claim recitations.
In addition, even if a specific number of an introduced claim recitation is explicitly recited, those skilled in the art will recognize that such recitation should typically be interpreted to mean at least the recited number (e.g., the bare recitation of “two recitations,” without other modifiers, typically means at least two recitations, or two or more recitations). Furthermore, in those instances where a convention analogous to “at least one of A, B, and C, etc.” is used, in general such a construction is intended in the sense one having skill in the art would understand the convention (e.g., “a system

having at least one of A, B, and C” would include but not be limited to systems that have A alone, B alone, C alone, A and B together, A and C together, B and C together, and/or A, B, and C together, etc.). In those instances where a convention analogous to “at least one of A, B, or C, etc.” is used, in general such a construction is intended in the sense one having skill in the art would understand the convention (e.g., “a system having at least one of A, B, or C” would include but not be limited to systems that have A alone, B alone, C alone, A and B together, A and C together, B and C together, and/or A, B, and C together, etc.). It will be further understood by those within the art that virtually any disjunctive word and/or phrase presenting two or more alternative terms, whether in the description, claims, or drawings, should be understood to contemplate the possibilities of including one of the terms, either of the terms, or both terms. For example, the phrase “A or B” will be understood to include the possibilities of “A” or “B” or “A and B.”
While various aspects and embodiments have been disclosed herein, other aspects and embodiments will be apparent to those skilled in the art. The various aspects and embodiments disclosed herein are for purposes of illustration and are not intended to be limiting, with the true scope and spirit being indicated by the following claims.
REFERRAL NUMERALS

Reference Number Description
100 System
10 Vehicle door
11 Hinges
12 Frame
14 Window opening
16 Window glass
20 Guide structure
22 Guide channel
30, 30a, 30b, 30c, Plurality of blinder sheets
40 Motor
50 Sensor
60 Control unit
70 Switch
80 Run mold

WE CLAIM:
1. A system (100) for controlling visibility of a window of a vehicle (200), the system (100)
comprising:
a vehicle door (10) having a frame (12) defined with a window opening (14) to accommodate a window glass (16);
a guide structure (20) mounted to the frame (12) along the window opening (14), and the guide structure (20) is defined with a plurality of guide channels (22);
a plurality of blinder sheets (30) positioned within each of the plurality of guide channels (22), wherein each of the plurality of blinder sheets (30) are defined with varying transparency;
a motor (40), coupled to the plurality of blinder sheets (30), to selectively move at least one of the plurality of blinder sheets (30) into a first position covering the window glass (16) and spaced apart from the window glass (16);
at least one sensor (50), configured to detect an intensity of the light within a cabin of the vehicle (200); and
a control unit (60), configured to actuate the motor (40) to selectively move at least one of the plurality of blinder sheets (30, 30a, 30b, 30c) into the first position to selectively control the visibility of the window.
2. The system (100) as claimed in claim 1, wherein the control unit (60) is communicatively coupled with at least one sensor (50) and the motor (40).
3. The system (100) as claimed in claim 1, wherein the motor (40) selectively moves at least one of the plurality of blinder sheets (30, 30a, 30b, 30c) into a second position uncovering the window glass (16).
4. The system (100) as claimed in claim 3, wherein the control unit (60) actuates the motor (40) for selectively moving at least one of the plurality of blinder sheets (30, 30a, 30b, 30c) between first position and the second position for controlling the visibility of the window based on the detected intensity of the light.

5. The system (100) as claimed in claim 1, wherein the plurality of blinder sheets (30) having varying transparency comprising high, medium and low darkening levels blinder sheets (30a, 30b, 30c).
6. The system (100) as claimed in claim 1, comprises a run mold (80) provided on the guide structure (20) for preventing infiltration of air and moisture into the vehicle (200) in the first position.
7. The system (100) as claimed in claim 1, wherein the cabin of the vehicle (200) comprises a cabin environment within the vehicle (200) and an ambient environment outside the vehicle (200).
8. The system (100) as claimed in claim 1 and 4, comprises a switch (70) coupled to the control unit (60), to manually actuate the motor (40) to selectively move the at least one of the plurality of blinder sheets (30, 30a, 30b, 30c) into the first position and the second position.
9. The system (100) as claimed in claim 1, wherein the least one sensor (50) is selected from a group comprising a pyranometer sensor, a photodiode, a photoresistor, a phototransistor, and a photovoltaic light sensor.
10. A method for controlling visibility of a window of a vehicle (200), the method comprises:
detecting, by at least one sensor (50), an intensity of light in a cabin of the vehicle (200);
determining, by a control unit (60) intensity of the light is within one or more predefined thresholds;
selecting, by the control unit (60), at least one of a plurality of blinder sheets (30) to cover a window glass (16) of a vehicle door (10); and
actuating a motor (40), by the control unit (60), for selectively moving at least one of the plurality of blinder sheets (30) into a first position covering the window opening.
11. The method as claimed in claim 10, comprises:
selecting, by the control unit (60), at least one of the plurality of blinder sheets (30) to uncover the window glass (16), if the intensity of the light is below the predefined threshold; and

actuating the motor (40), by the control unit (60), for selectively moving at least one of the plurality of blinder sheets (30) into a second positions uncovering the window glass (16).