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A System For Selectively Dimming A Glass Of A Vehicle And A Method Thereof

Abstract: “A SYSTEM FOR SELECTIVELY DIMMINING A GLASS OF A VEHICLE AND A METHOD THEREOF” ABSTRACT Present disclosure discloses a system for selectively dimming a glass of a vehicle. The system includes a dimming film disposed at predetermined location of the glass and a light rays detection unit. The detection unit includes a platform and a first light detection sensor mounted on the platform. The platform is configured to orient the sensor to detect light rays and generate a first signal corresponding to detection and intensity of light rays. Further, the system includes a position sensor, configured to detect an eye position of a driver, and generate a second signal. Furthermore, the system includes a control unit communicatively coupled to the detection unit and the position sensor. The control unit is configured to selectively activate at least a portion of the dimming film to dim a portion of the glass based on the first signal and the second signal. Selectively dimming provides hassle-free driving. To be published Figures. 1a and 2.

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Notices, Deadlines & Correspondence

Patent Information

Application #
Filing Date
12 August 2021
Publication Number
07/2023
Publication Type
INA
Invention Field
MECHANICAL ENGINEERING
Status
Email
ipo@knspartners.com
Parent Application

Applicants

TATA MOTORS LIMITED
Bombay House, 24 Homi Mody Street, Hutatma Chowk, Mumbai 400 001, Maharashtra, INDIA

Inventors

1. Kshitij Sharma
c/o TATA MOTORS LIMITED, of an Indian company having its registered office at Bombay House, 24 Homi Mody Street, Hutatma Chowk, Mumbai 400 001, Maharashtra, INDIA
2. Yogesh Manohar Tongaonkar
c/o TATA MOTORS LIMITED, of an Indian company having its registered office at Bombay House, 24 Homi Mody Street, Hutatma Chowk, Mumbai 400 001, Maharashtra, INDIA
3. Mayur Kondibhau Purwant
c/o TATA MOTORS LIMITED, of an Indian company having its registered office at Bombay House, 24 Homi Mody Street, Hutatma Chowk, Mumbai 400 001, Maharashtra, INDIA
4. Harpreet Singh Kuldeep Singh Nagi
c/o TATA MOTORS LIMITED, of an Indian company having its registered office at Bombay House, 24 Homi Mody Street, Hutatma Chowk, Mumbai 400 001, Maharashtra, INDIA
5. Girish Tukaram Panchal
c/o TATA MOTORS LIMITED, of an Indian company having its registered office at Bombay House, 24 Homi Mody Street, Hutatma Chowk, Mumbai 400 001, Maharashtra, INDIA

Specification

Claims:We Claim:

1. A system (100) for selectively dimming a glass (112) of a vehicle, the system (100) comprising:
a dimming film (101) disposed at predetermined location of the glass (112);
a light rays detection unit (102), comprising:
a platform (103) movably supported in a vehicle cabin relative to the glass (112); and
a first light detection sensor (105) mounted on the platform (103), wherein the platform (103) is configured to orient the first light detection sensor (105) to detect light rays and generate a first signal corresponding to detection and intensity of light rays;
a position sensor (107), configured to detect an eye position of a driver and generate a second signal; and
a control unit (108) communicatively coupled to the light rays detection unit (102) and the position sensor (107), the control unit (108) is configured to selectively activate at least a portion of the dimming film (101) to dim a portion of the glass (112) based on the first signal and the second signal.

2. The system (100) as claimed in claim 1, wherein the control unit (108) is configured to determine position of the platform (103) based on the first signal which corresponds to detecting light rays by the first light detection sensor (105).

3. The system (100) as claimed in claim 1, where the second signal correspond to a position of the eye of the driver relative to the glass (112).

4. The system (100) as claimed in claim 1, wherein the position sensor (107) is configured to be operable by the driver based on seating position in the vehicle.

5. The system (100) as claimed in claim 1, wherein the platform (103) is movably supported by at least one actuator (104).

6. The system (100) as claimed in claim 1, wherein the first light detection sensor (105) is a light dependent resistor (LDR) and the at least one position sensor (107) is a potentiometer.

7. The system (100) as claimed in claim 1, wherein the light rays detection unit (102) comprises a distance measuring sensor (106) mounted on the platform (103), wherein the distance measuring sensor (106) is configured to detect distance of the light source and generate a third signal.

8. The system (100) as claimed in claim 7, wherein the distance measuring sensor (106) is a Light Detection and Ranging (LIDAR) sensor.

9. The system (100) as claimed in claim 1, wherein the control unit (108) is configured to:
generate a vector corresponding to the first signal, the second signal and the third signal;
determine an intersection point of the vector on the glass (112); and
selectively activate a portion of the dimming film (101) at the determined intersection point of the glass (112) to dim the portion of the glass (112).

10. A vehicle comprising a system (100) for dimming a glass (112) as claimed in claim 1.

11. A method of dimming a glass (112) of a vehicle, the method comprising:
receiving, by a control unit (108) a first signal corresponding to detecting light rays and intensity of light rays from a light rays detection unit (102);
receiving, by the control unit (108) a second signal corresponding to position of the eye of the driver relative to the glass, from at least one position sensor (107);
determining, by the control unit (108) a portion of the glass (112) to be dimmed based on the first signal and the second signal; and
selectively activating, by the control unit (108), at least a portion of the dimming film (101), to selectively dim a portion of the glass (112).

12. The method as claimed in claim 11, comprising receiving by the control unit (108) a third signal from a distance measuring sensor (106).

13. The method as claimed in claims 11 or 12, comprising analysing by the control unit (108) the second signal and the third signal to determine a portion of the glass (112) to be dimmed and activate a portion of the dimming film (101), to selectively dim the portion of the glass (112).

Dated this 12th August 2021

GOPINATH ARENUR SHANKARARAJ
Of K&S Partners
IN/PA 1852
AGENT FOR THE APPLICANT
, Description:FORM 2
THE PATENTS ACT 1970
[39 OF 1970]
&
THE PATENTS RULES, 2003

COMPLETE SPECIFICATION
[See section 10; rule 13]

TITLE: “A SYSTEM FOR SELECTIVELY DIMMING A GLASS OF A VEHICLE AND A METHOD THEREOF”

Name and Address of the Applicant: TATA MOTORS LIMITED; Bombay House, 24 Homi Mody Street, Hutatma Chowk, Mumbai 400 001 Maharashtra, India.

Nationality: IN

The following specification particularly describes the invention and the manner in which it is to be performed.
TECHNICAL FIELD

[001] Present disclosure generally relates to a field of automobiles. Particularly, but not exclusively, the present disclosure relates to dimming a glass of a vehicle. Further embodiments of the present disclosure discloses a system and a method for selectively dimming the glass of the vehicle, to minimize intensity of light passing through the glass.

BACKGROUND OF THE DISCLOSURE

[002] Driving requires effective coordination of visual, motor, and cognitive skills. Safe operation of a vehicle requires a clear, unimpaired view out of the vehicle. Bright rays of sunshine encountered on the road distracts drivers, even potentially temporarily blinding them. Poor visibility caused by sunshine can lead to loss of control of the vehicle, impact and subsequent damage of the vehicle and injury or death of drivers, passengers, or onlookers. Sunshine faced while occupying the vehicle can cause pain or irritation to the eyes of occupants of a vehicle, or potential long-term damage to the eye. To avoid glare from the sun, drivers tend to wear sunglasses during driving. Though, such sunglasses minimize the intensity of light, the sunglass potentially reducing the visibility, which is undesired.

[003] Visual skills are pushed to their limit at night by decreased illumination and by disabling glare from oncoming headlights. Glare is proportional to headlight brightness so increasing headlight brightness also increases glare for oncoming drivers, especially on two lane roads. A night driving problem, especially for drivers on two lane roads, and particularly when it is raining, is that oncoming high beams can be blinding, and even oncoming low beams can cause dangerous glare. That is because cataracts in the eye's lens scatter the oncoming light.

[004] Modern vehicle headlights are manually operated, positioned in pairs, one or two on each side of the front of a vehicle. A headlight system produces a low and a high beam. High beams are used when other vehicles are not present on the oncoming side of the road. Low beams have stricter control of upward light, and direct most of their light downward and either rightward (in right-traffic countries) or leftward (in left-traffic countries) to provide safe forward visibility without excessive glare. However, switching between the high beam and low beam solely depends on the driver. Inexperienced drivers tend to drive the vehicles in high beams, thereby increasing glare for the oncoming drivers, thus causing inconvenience to the drivers.

[005] The present disclosure is directed to overcome one or more limitations stated above or other such limitations associated with the existing art.

SUMMARY OF THE DISCLOSURE

[006] One or more shortcomings of conventional systems are overcome, and additional advantages are provided through the system 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 as a part of the claimed disclosure.

[007] In one non-limiting embodiment of the disclosure, a system for selectively dimming a glass of a vehicle is disclosed. The system includes a dimming film disposed at predetermined location of the glass and a light rays detection unit. The light rays detection unit includes a platform, which is movably supported in a vehicle cabin relative to the glass. Further, the light rays detection unit includes a first light detection sensor mounted on the platform. The platform is configured to orient the first light detection sensor to detect light rays and generate a first signal corresponding to detection and intensity of light rays. Further, the system includes a position sensor, configured to detect an eye position of a driver, and generate a second signal. Furthermore, the system includes a control unit communicatively coupled to the light rays detection unit and the position sensor. The control unit is configured to selectively activate at least a portion of the dimming film to dim a portion of the glass based on the first signal and the second signal.

[008] In an embodiment of the disclosure, the control unit is configured to determine position of the platform based on the first signal which corresponds to an instance of detecting light rays by the first light detection sensor.

[009] In an embodiment of the disclosure, the second signal corresponds to the eye position of the driver, relative to the glass.

[010] In an embodiment of the disclosure, the position sensor is configured to be operable by the driver based on seating position in the vehicle.

[011] In an embodiment of the disclosure, the platform is movably supported by at least one actuator.

[012] In an embodiment of the disclosure, the first light detection sensor is a light dependent resistor (LDR) and the at least one position sensor is a potentiometer.

[013] In an embodiment of the disclosure, the light rays detection unit includes a distance measuring sensor mounted on the platform, wherein the distance measuring sensor is configured to detect distance of the light source and generate a third signal.

[014] In an embodiment of the disclosure, the distance measuring sensor is a Light Detection and Ranging (LIDAR) sensor.

[015] In an embodiment of the disclosure, the control unit is configured to generate a vector corresponding to the first signal, the second signal and the third signal, determine an intersection point of the vector on the glass and selectively activate a portion of the dimming film at the determined intersection point of the glass to dim the glass.

[016] In another non-limiting embodiment of the present disclosure, a method of dimming a glass of a vehicle is disclosed. The method includes receiving by a control unit a first signal corresponding to detection and intensity of light rays, from a light rays detection unit and a second signal from a position sensor, corresponding to eye position of the driver. Further, the method includes analyzing by the control unit the first signal and the second signal to determine a portion of the glass to be dimmed. Upon determining the portion of the glass to be dimmed, the method includes activating the dimming film such that, the determined portion of the glass is selectively dimmed.

[017] In an embodiment of the disclosure, the method includes receiving by the control unit a third signal, from a second light detection sensor.

[018] In an embodiment of the disclosure, the method includes analyzing by the control unit the second signal and the third signal to determine a portion of the glass to be dimmed and selectively activating at least a portion of the dimming film, to selectively dim the portion of the glass at the determined portion of the glass.

[019] 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.

[020] 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 ACCOMPANYING DRAWINGS

[021] The novel features and characteristic of the disclosure are set forth in the appended claims. The disclosure itself, however, as well as a mode of use, further objectives, and advantages thereof, will best be understood by reference to the following detailed description of an 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:

[022] Figures. 1a and 1b illustrates a schematic view a vehicle equipped with a system for selectively dimming a glass of a vehicle in day and night condition, respectively, in accordance with an embodiment of the present disclosure;

[023] Figure. 2 is a block diagram of the system for selectively dimming the portion of the glass of the vehicle, in accordance with an embodiment of the present disclosure;

[024] Figure. 3 illustrates a schematic view of a light ray detection unit of the system of Figures. 1a and 1b; and

[025] Figures. 4a and 4b are a flow charts, depicting an operation sequence of the system for selectively dimming the portion of the glass of the vehicle, in accordance with embodiments of the present disclosure.

[026] 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

[027] While the embodiments in the disclosure are subject to various modifications and alternative forms, specific embodiments thereof have been shown by way of example in the figures and will be described below. It should be understood, however, that it is not intended to limit the disclosure to the particular forms disclosed, but on the contrary, the disclosure is to cover all modifications, equivalents, and alternative falling within the scope of the disclosure.

[028] It is to be noted that a person skilled in the art would be motivated from the present disclosure and modify various features of a system for selectively dimming a glass of a vehicle, without departing from the scope of the disclosure. Therefore, such modifications are considered to be part of the disclosure. Accordingly, the drawings show only those specific details that are pertinent to understand the embodiments of the present disclosure, so as not to obscure the disclosure with details that will be readily apparent to those of ordinary skilled in the art having benefit of the description herein.

[029] The terms “comprises”, “comprising”, or any other variations thereof used in the disclosure, are intended to cover a non-exclusive inclusion, such that a system that comprises a list of components does not include only those components but may include other components not expressly listed or inherent to such system. In other words, one or more elements in a system or device proceeded by “comprises… a” does not, without more constraints, preclude the existence of other elements or additional elements in the system or device.

[030] Embodiments of the present disclosure disclose a system for selectively dimming a glass of a vehicle. Bright rays of sunshine encountered on the road during day times and headlight brightness of the oncoming vehicles during night times, distract drivers and even potentially temporarily blind the driver, causing poor visibility. Poor visibility caused by sunshine and headlight brightness of the oncoming vehicle may lead to loss of control of the vehicle leading to injury or death of drivers, passengers, or onlookers.

[031] Accordingly, the present disclosure discloses a system for selectively dimming a glass of a vehicle, such that the sunshine and headlight brightness of the oncoming vehicle does not affect the visibility of the driver. The system of the present disclosure includes a dimming film, which may be disposed on the glass. Further, the system may include a light rays detection unit. The light rays detection unit may include a platform, which may be movably supported in a cabin of the vehicle, relative to the glass. Further, the light rays detection unit may include a first light detection sensor, which may be mounted on the platform. The platform may be configured to orient the first light detection sensor to detect light rays and generate a first signal. Furthermore, the light rays detection unit may include a second light detection sensor, which may be mounted on the platform. The distance measuring sensor may be configured to detect distance of the light source and generate a third signal. The system may further include a position sensor, which may be configured to detect an eye position of a driver and generate a second signal. Additionally, the system includes a control unit, which may be communicatively coupled to the light rays detection unit and the position sensor. The control unit may be configured to generate a vector corresponding to the first signal, the second signal and the third signal. Based on the vector generated, the control unit may determine an intersection point or area of the vector on the glass and selectively activate a portion of the dimming film at the determined intersection point or area to selectively dim the glass at the determined intersection point or area. Dimming the glass reduces the intensity of light travelling through the glass, thereby providing hassle free driving experience to the driver.

[032] The following paragraphs describe the present disclosure with reference to Figures. 1a to 4b. In the figures, the same element or elements which have similar functions are indicated by the same reference signs.

[033] Figures. 1a, 1b and 2 illustrates a schematic view of a cabin of a vehicle, equipped with a system (100) for selectively dimming a glass (112) of the vehicle, and a block diagram of the system (100) for selectively dimming the glass (112) of the vehicle, respectively. As an example, the glass (112) of the vehicle may be a front windshield glass, window glasses and a rear windshield glass. In an embodiment, the system (100) may be disposed in a cabin of the vehicle, relative to the glass to be dimmed. That is, if the front windshield glass (112) is to dimmed, the system (100) may be positioned in the vehicle cabin relative to the windshield and likewise if window glasses are to be dimmed, the system (100) may be positioned in the vehicle cabin relative to the window glasses.

[034] As seen in Figure. 1a, the system (100) may include a dimming film (101), which may be disposed at predetermined location of the glass (112). In an embodiment, “predetermined location” infers that, the dimming film (101) may be sandwiched between layers of the glass (112) or may be positioned on inner side of the glass (112). The phrase “inner side of the glass” may be referred as a side of the glass (112), which is accessible to an occupant inside the vehicle. In another embodiment, the system (100) may include a plurality of dimming films, which may be disposed at predetermined locations of the glass (112). As apparent from Figure. 1, the system (100) may include a light rays detection unit (102). The light rays detection unit (102) as seen in Figure. 3 may include a platform (103), which may be movably supported in a vehicle cabin relative to the glass (112) to be dimmed. In an embodiment, the platform (103) may be movably supported by at least one actuator (104). As an example, the actuator (104) may be but not limiting to a pneumatic actuator, a hydraulic actuator, an electric actuator such as but not limiting to a servo motor, and the like. The at least one actuator (104) may be configured to orient the platform (103) in X, Y and Z axis or plane (i.e., in top, bottom, left and right directions). Further, the light rays detection unit (102) may include a first light detection sensor (105), which may be mounted on the platform (103) such that, the first light detection sensor (105) may orient corresponding to orientation of the platform (103). The first light detection sensor (105) may be configured to detect light rays and generate a first signal corresponding to detection of the light rays and intensity of light rays. In an embodiment, the first light detection sensor (105) may be but not limiting to a light dependent resistor (LDR). Further, the light rays detection unit (102) may include a distance measuring sensor (106), which may be mounted on the platform (103) such that, the distance measuring sensor (106) may orient corresponding to orientation of the platform (103). The distance measuring sensor (106) may be configured to detect distance of the light rays from the eye of the driver or the glass (112) and generate a third signal. In an embodiment the distance measuring sensor (106) may be but not limiting to a Light Detection and Ranging (LIDAR) sensor.

[035] In an embodiment, the dimming film may be but not limiting to electrochromic glass/film, Polymer dispersed liquid crystal (PDLC) glass/film, Rev Polymer dispersed liquid crystal (PDLC) glass/film, T- Organic Light-Emitting Diode (OLED) glass/film.

[036] In an embodiment, the light rays detection unit (102) may be rigidly or flexibly fixed to the cabin. The platform (103) may have a rolling contact with the actuator (104) such that, operation of the actuator (104) may result in the platform (103) to orient in X, Y and Z direction or plane.

[037] Referring again to Figure. 1a, the system (100) may include a position sensor (107), which may be configured to detect an eye position of a driver and generate a second signal. In an embodiment, the position sensor (107) may be mounted on a seat frame and a dashboard. The position sensor (107) may be but not limiting to a potentiometer. In an embodiment, based on seating position of the driver, the position sensor (107) may be operable (i.e., tune) to suit the eye position of the driver. The output of the position sensor (107) may be taken as a three-dimensional co-ordinate for the eye position of the driver. Based on determined three-dimensional co-ordinate of the eye position, the position sensor (107) may generate a second signal, which may correspond to the eye position of the driver. Further, the system (100) may include a control unit (108), which may be communicatively coupled to the light rays detection unit (102) and the position sensor (107). The control unit (108) may be configured to determine a portion of the glass (112) to be dimmed, based on the first signal (i.e., position of the platform (103) corresponding to the first signal), the second signal and the third signal. That is, the control unit (108) may be configured to analyze the position of the platform (103), the second signal and the third signal, and may generate a vector. Once the vector is generated, the control unit (108) may determine an intersection point or area of the vector on the glass (112). In an embodiment, the intersection point may correspond to a portion of the glass (112) to be dimmed or tinted. Upon identifying the intersection point or area on the glass (112), the control unit (108) may activate the dimming film (101) at the intersection point or area to selectively dim the portion of the glass (112). In an embodiment, dimming the glass (112) may minimize intensity of light passing through that portion of the glass (112), thus reducing glare experienced by the driver.

[038] In an embodiment, the eye position of a driver may be determined by one of but not limiting to a camera and an ultrasonic sensor which may be placed on a headliner, the dashboard, the seat frame and the like.

[039] Referring back to Figure. 2, the control unit (108) may include a receiving module (109), a processing module (110) and an activation module (111). The control unit (108) may be configured to operate the system (100) to selectively dim the portion of the glass (112) to reduce intensity of light passing through that portion of the glass (112). Working of the control unit (108) to selectively dim the portion of the glass (112) is described hereinafter.

[040] The receiving module (109) of the control unit (108) may be configured to receive the first signal from the first light detection sensor (105), the second signal from the position sensor (107) and the third signal from the distance measuring sensor (106). The processing module (110) may analyze the first signal and may determine position of the platform (103). That is, the processing module (110) may determine the position of the platform (103) at an instance of detecting the light rays by the first light detection sensor (105). Further, the processing module (110) may analyze the position of the platform (103), the second signal and the third signal and may generate a vector. Once the vector is generated, the processing module (110) may determine the intersection point of the vector on the glass (112). In an embodiment, the intersection point may correspond to a portion of the glass (112) to be dimmed or tinted. Upon identifying the intersection point on the glass (112), the processing module (110) generate an input signal, which may be fed into the activation module (111) of the control unit (108). Based on the input signal, activation module (111) may activate the dimming film (101) at the intersection point or area of the glass (112) to selectively dim the portion of the glass (112). In an embodiment, activating the dimming film (101) may include supplying voltage to the dimming film (101), which may result in tinting (thus, dimming) of the glass (112). Dimming the glass (112) may minimize intensity of light passing through that portion of the glass (112), thus reducing glare experienced by the driver.

[041] In an embodiment, the system (100) in the foregoing paragraphs is described in relation to one glass (112) of the vehicle. However, the same cannot be construed as a limitation, as the system (100) may be equipped in relations to all glasses of the vehicle to selectively dim the respective glasses of the vehicle.

[042] Turning now to Figures. 4a and 4b, which are a flowchart depicting operational sequence of the system (100) for selectively dimming the glass (112) of the vehicle. The operation sequence of the system (100) is described in relation to the windshield glass (112) of the vehicle and the same cannot be construed as a limitation, since the system (100) may be adapted to selectively dim the window glass and rear windshield glass. Further, the operation sequence of the system (100) is described with respect to day conditions and night conditions.

[043] As illustrated in flowchart of Figures. 4a and 4b, the one or more blocks illustrates a sequence of operation of the system (100). The operation may be described in the general context of computer executable instructions. Generally, computer executable instructions may include routines, programs, objects, components, data structures, procedures, modules, and functions, which perform functions or implement abstract data types.

[044] The order in which the operation is described is not intended to be construed as a limitation, and any number of the described method blocks can be combined in any order to implement the method. Additionally, individual blocks may be deleted from the methods without departing from the scope of the subject matter described herein. Furthermore, the method can be implemented in any suitable hardware, software, firmware, or combination thereof.

[045] As seen in Figure. 4a, in day conditions, the platform (103) may be continuously orient (thus, the first light detection sensor (105) orients) to detect light rays of maximum intensity. In an embodiment, night conditions may be determined by the light sensor or a timer, which may feed a signal to the light rays detection unit (102). Upon detecting the light rays, the first light detection sensor (105) may generate the first signal, which may be received by the receiving module (109) of the control unit (108). Further, the receiving module (109) may receive the second signal from the position sensor (107), corresponding to position of the eye of the driver [as shown in block 201]. As an example, the light source detected by the first light detection sensor (105) in day condition may be but not limiting to sun. The first signal received by the receiving module (109) may be processed by the processing module (110) of the control unit (108) to determine position of the platform (103) at the instance of detecting the light rays by the first light detection sensor (105) [as shown in block 202].

[046] As seen in block 203, the processing module (110) may analyze the position of the platform (103) and the second signal and may generate a vector. Once the vector is generated, the processing module (110) may determine an intersection point of the vector joining the point of light rays (i.e., light source) and driver’s eye, and may generate the input signal. In an embodiment, the intersection point may correspond to a portion of the glass (112) to be dimmed or tinted. Upon identifying the intersection point on the glass (112), the processing module (110) may generate an input signal, which may be fed into the activation module (111) of the control unit (108). At block 204, the activation module (111) based on the input signal from the processing module (110) may activate the dimming film (101) by supplying voltage to the dimming film (101) at the determined intersection point. Supplying the voltage tints the dimming film (101) thus, tinting or dimming the portion of the glass (112) to minimize intensity of light passing through the portion of the glass (112).

[047] As seen in Figure. 4b, in night conditions glare is caused by the headlight beam of the oncoming vehicle [best seen in Figure. 1b]. To minimize the glare, the platform (103) may be continuously orient [thus, the first light detection sensor (105) and the distance measuring sensor (106) orients] to detect light rays and distance of the light rays from drivers eye position, respectively. In an embodiment, night conditions may be determined by the light sensor or a timer, which may feed a signal to the light rays detection unit (102). Upon detecting the light rays, the first light detection sensor (105) may generate a first signal and the distance measuring sensor (106) may generate the third signal, which may be received by the receiving module (109) of the control unit (108) [as shown in block 301]. Further, the receiving module (109) may receive the second signal, corresponding to position of driver’s eye, from the position sensor (107). As an example, the light source detected by the first light detection sensor (105) in night condition may be but not limiting to headlight beam of oncoming vehicle. The first signal and the second signal received by the receiving module (109) (may be processed by the processing module (110) of the control unit (108) to determine position of the platform (103) at the instance of detecting the light rays and distance of the light rays [as shown in block 302].

[048] Further, as seen in block 303, the processing module (110) may analyze the position of the platform (103) and the second signal and may generate a vector. Once the vector is generated, the processing module (110) may determine an intersection point of the vector joining the point of light rays (i.e., light source) and driver’s eye, and may generate the input signal. In an embodiment, the intersection point may correspond to a portion of the glass (112) to be dimmed or tinted. Upon identifying the intersection point on the glass (112), the processing module (110) generate an input signal, which may be fed into the activation module (111) of the control unit (108). At block 304, the activation module (111) based on the input signal from the processing module (110) may activate the dimming film (101) by supplying voltage to that the location of the dimming film (101), which corresponds to portion of the glass (112) to be dimmed. Supplying the voltage tints the dimming film (101) thus, tinting the glass (112) at determined position to minimize intensity of light passing through the portion of the glass (112).

[049] In an embodiment, the platform (103) may continuously orient the first light detection sensor (105) and the distance measuring sensor (106) to continuously detect the light rays and distance of the light rays from the eye position of the driver and generate corresponding first and third signal. Based on the first signal, the second signal and the third signal, the control unit (108) may continuously determine the portion of the glass (112) to be dimmed and correspondingly activate the portion of the dimming film (101) such that, the portion of the glass (112) is dimmed or tinted to minimize the intensity of light travelling through that portion of the glass (112).

[050] In an embodiment, the system (100) may be fitted in the existing vehicles without substantial modification to the door.

[051] In an embodiment, the system (100) is modular, simple and effectively dims the glass (112) since, the system (100) facilitates in continuously determining the light source during travel of the vehicle.

[052] In an embodiment of the disclosure, the control unit (108) may be a centralized control unit (108), or a dedicated control unit (108). The control unit (108) may be implemented by any computing systems that is utilized to implement the features of the present disclosure. The processing module (110) of the control unit (108) may comprise at least one data processor for executing program components for executing user or system (100) generated requests. The processing module (110) may be a specialized processing module (110) such as integrated system (100) (bus) controllers, memory management control units, floating point units, graphics processing modules, digital signal processing modules, etc. The processing module (110) may include a microprocessor, such as AMD Athlon, Duron or Opteron, ARM’s application, embedded or secure processors, IBM PowerPC, Intel’s Core, Itanium, Xeon, Celeron or other line of processors, etc. The processing module (110) may be implemented using a mainframe, distributed processor, multi-core, parallel, grid, or other architectures. Some embodiments may utilize embedded technologies like application-specific integrated circuits (ASICs), digital signal processors (DSPs), Field Programmable Gate Arrays (FPGAs), etc.

[053] In some embodiments, the control unit (108) may be disposed in communication with one or more memory devices (e.g., RAM, ROM etc.) via a storage interface. The storage interface may connect to memory devices including, without limitation, memory drives, removable disc drives, etc., employing connection protocols such as serial advanced technology attachment (SATA), integrated drive electronics (IDE), IEEE-1394, universal serial bus (USB), fiber channel, small computing system (100) interface (SCSI), etc. The memory drives may further include a drum, magnetic disc drive, magneto-optical drive, optical drive, redundant array of independent discs (RAID), solid-state memory devices, solid-state drives, etc.

[054] It is to be understood that a person of ordinary skill in the art may develop a system (200) of similar configuration without deviating from the scope of the present disclosure. Such modifications and variations may be made without departing from the scope of the present invention. Therefore, it is intended that the present disclosure covers such modifications and variations provided they come within the ambit of the appended claims and their equivalents.

Equivalents:

[055] 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.

[056] 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:

Particular Reference number
System 100
Dimming film 101
Light rays detection unit 102
Platform 103
Actuator 104
First light detection sensor 105
Distance measuring sensor 106
Position sensor 107
Control unit 108
Receiving module 109
Processing module 110
Activation module 111
Glass 112

Documents

Application Documents

# Name Date
1 202121036492-STATEMENT OF UNDERTAKING (FORM 3) [12-08-2021(online)].pdf 2021-08-12
2 202121036492-REQUEST FOR EXAMINATION (FORM-18) [12-08-2021(online)].pdf 2021-08-12
3 202121036492-POWER OF AUTHORITY [12-08-2021(online)].pdf 2021-08-12
4 202121036492-FORM-8 [12-08-2021(online)].pdf 2021-08-12
5 202121036492-FORM 18 [12-08-2021(online)].pdf 2021-08-12
6 202121036492-FORM 1 [12-08-2021(online)].pdf 2021-08-12
7 202121036492-DRAWINGS [12-08-2021(online)].pdf 2021-08-12
8 202121036492-DECLARATION OF INVENTORSHIP (FORM 5) [12-08-2021(online)].pdf 2021-08-12
9 202121036492-COMPLETE SPECIFICATION [12-08-2021(online)].pdf 2021-08-12
10 202121036492-Proof of Right [18-01-2022(online)].pdf 2022-01-18
11 Abstract1.jpg 2022-02-18
12 202121036492-FER.pdf 2023-03-02
13 202121036492-FER_SER_REPLY [09-08-2023(online)].pdf 2023-08-09
14 202121036492-PA [22-01-2025(online)].pdf 2025-01-22
15 202121036492-ASSIGNMENT DOCUMENTS [22-01-2025(online)].pdf 2025-01-22
16 202121036492-8(i)-Substitution-Change Of Applicant - Form 6 [22-01-2025(online)].pdf 2025-01-22
17 202121036492-US(14)-HearingNotice-(HearingDate-13-10-2025).pdf 2025-09-12
18 202121036492-Correspondence to notify the Controller [09-10-2025(online)].pdf 2025-10-09
19 202121036492-Written submissions and relevant documents [27-10-2025(online)].pdf 2025-10-27

Search Strategy

1 SearchHistoryE_28-02-2023.pdf
2 202121036492_SearchStrategyAmended_E_SearchHistoryAE_19-08-2025.pdf