FIELD OF THE INVENTION

The invention generally relates to a key slot illumination system facilitating illumination of key slot area and more particularly related to facilitation of illumination of key slot area and switch unit especially in night time when the user approaches the vehicle.

BACKGROUND OF THE INVENTION

Generally in vehicles riders/drivers commonly face a problem to locate the exact position of the Key lock unit and switches while trying to insert the key and operate the various loads available in the vehicle. Many existing technologies are already available in vehicles which illuminate the key lock area and the switches area almost always irrespective of the need of it which leads to battery drainage. Hence a system is needed which can sense and operate the lighting mechanism only when the driver in need to operate one of the above mentioned key lock unit or switch(s).

Patent Application DE3940457 discloses a lock lighting device to solve the problem stated above where in the system comprises of a contactless proximity switch element which responds to a metal or permanent magnet of a car key and a lighting element with electric light source. Such a system may cause continuous drainage of battery as the light element will be glowing always until the key is in proximity of the switch element i.e. key is already in inserted position.

Patent application JP56108325 also discloses a similar system to illuminate the keyhole area only when required by employing a switching mechanism comprising action of opening and closing the door of car. Although it solves the problem of battery drainage, it creates a potential failure mode at the switch unit employed.

Similarly for locating the position of switches on the vehicle body while the rider is driving there is a need of system which can illuminate the switch body only when the rider or driver desires it.

So there is a need of system which solves the above problems with lowest probability of failure.

SUMMARY OF THE INVENTION

Main objective of the present invention is to provide an illumination system for different illuminable units such as key slot or switch unit. Another objective of this invention is to provide a method of illumination in which activation of the system occurs only in the absence of a predefined wavelength of light i.e. in night time or in dark areas. Mentioned system has an ambient light sensor mounted over the light exposed part of vehicle and getting activated on the predefined wavelength of light. This ambient sensor gets activated and facilitates power supply to temperature and movement detection sensors mounted neighbouring the illuminable unit fixed in the vehicle.

Mentioned illumination system is applicable for illumination of different units of the vehicle such as switches etc.

Temperature and movement detection sensors are kept multiple such that existing error and noises can be neutralized in surrounding of vehicle. Said temperature and movement detection sensors also reads or sense the temperature change and movement/motion in the vicinity of the vehicle and providing the activation input to illumination unit provided with the key slot of the vehicle.

Summary provided in the present description presents the concept and important embodiments of the invention and not intended to limit the scope of the invention. Scope of the invention is defined in the claim(s) provided and shall be understood entirely on the basis of claim(s).

BRIEF DESCRIPTION OF THE DRAWINGS

The present invention will become more fully understood from the detailed description given herein below and the accompanying drawing which is incorporated in and constitute embodiments of the invention, illustrate several aspects of the invention and together with a description of the embodiments serve to explain the principles of the invention and thus, are not limiting the present invention and a brief description of the drawing is as follows:

Figure 1 is showing the exemplary location of an embodiment of the invention.

Figure 2 is showing a switch assembly in order to depict essential embodiments and their enablement for the claimed inventions.

Figure 3 is depicting the essential embodiments of the invention in a key slot unit.

Figure 4 and Figure 5 are showing the enablement steps of the claimed invention.

DETAILED DESCRIPTION OF THE INVENTION

The embodiments disclosed below are not intended to be exhaustive or to limit the invention to the precise forms disclosed in the following detailed description. Rather, the embodiments are chosen and described for enablement purpose of the invention. The invention may have application to all types of vehicles. The scope of the invention is entirely based upon the claims provided.

Reference is made to Figure 1 in order to show the exemplary positioning of the embodiments of invention. Ambient sensor 102 is mounted over the vehicle 100 in such a way that it is placed over the exposed area of the vehicle 100 such that said ambient sensor 102 remains in contact with the light falling. Further, described invention provides a mechanism through which illuminable units of the vehicle such as key slot unit and switch unit can be illuminated in the absence or lack of the light source i.e. during the dark.

Referring to Figure 2, a switch unit S is showed in order to describe claimed invention and enablement for said switch unit S. Multiple Illumination points 106as, 106bs, and 106cs are provided over the individual switches 105as, 105bs and 105cs. Further, atleast one temperature and movement detection sensor 107as, for example infrared sensors or ultrasonic sensors etc., is mounted on the switch surface 103s.

Further, in Figure 3 another exemplary embodiment of invention is described i.e. claimed invention is shown associated with a key slot assembly K. In this arrangement one or more temperature and movement detection sensors for example infrared sensors or ultrasonic sensors 107ak, 107bk are mounted over the key slot 104k. As shown, key slot 104k is secured in a key slot holder 103k over which an illumination strip 106k is provided. Said illumination strip 106k is connected with the output of the temperature and movement detection sensors 107a, 107b.

Referring back to Figure 2 and Figure 3, in case of any human intervention change in temperature and the movement sensation occurs in vicinity of the vehicle 100. These changes in temperature and movement can be sensed and accordingly signal to illumination unit 106k, 106s (illumination strip 106k and illumination point 106s) can be sent.

Mentioned illumination strip 106k and illumination strip 106s (collectively illumination unit 106k, 106s), ambient sensor 102 and temperature and movement detection sensors 107ak, 107bk, 107as (hereinafter infrared sensor) are connected to power source 108.

Reference is made to Figure 5 and Figure 6 describing the enabling method of the claimed invention. Ambient light sensor 102 senses the wavelength, brightness of the sun light 600 or visible ambient light 600 falling over it and activates the power supply (step 604) if said wavelength or brightness is less than a predetermined value or threshold (step 502). Said activation of power supply (step 604) completes the circuit with power source 108 (step 601) and the power flows to the infrared sensors 107ak, 107bk and 107as (step 503, step 602, step 603).

Said infrared sensors 107ak, 107bk, 107as being plural in number effectively reduces the errors and noises (step 504, step 605) that occur during sensing of the objects and atmospheric contents around the vehicle 100. Further said infrared sensors 107ak, 107bk, 107as detects whether there is a change in temperature surrounding the vehicle or not (step 505).

In case of any change in temperature in close proximity of the vehicle and the unit to be illuminated, said infrared sensors 107ak, 107bk, 107as observes it. Said infrared sensors 107ak, 107bk triggers a signal to the illumination unit 106k, 106s (step 507 and step 607) and the circuit between power source 108 and illumination unit 106k, 106s gets completed and the illumination unit 106k, 106s gets activated.

Mentioned change in temperature and movement in the vicinity of the vehicle 100 happens whenever a human body or an object say vehicle key comes nearby infrared sensors 107ak, 107bk, 107as because every object emits heat energy in the form or infrared radiation. Neutralization of noises and errors ensures that the object sensed is valid and ensures that it is not just a reflux of any things or. vibration passing by. Mentioned illumination unit 106k, 106s can have layers of any illuminating material or LEDs or bulbs etc. which gets activated when the power flows to it.

Above described system and method facilitates a better view of different units of the vehicle 100 i.e. key slot, switch units etc. to the rider during dark without unnecessary consumption of the battery.

WHAT IS CLAIMED IS

1) An illumination system for a vehicle, characterized by its activation only in the absence of a predefined wavelength of light, comprising an ambient light sensor mounted over the light exposed part of vehicle and getting activated on the predefined wavelength of light and facilitating power supply to atleast one temperature and movement detection sensor mounted neighbouring a illuminable unit fixed in the vehicle wherein said atleast one temperature and movement detection sensor is configured to neutralize existing error and noises in surrounding of vehicle and to calculate temperature change and movement in the vicinity of the vehicle and providing the activation input to atleast one illumination unit provided with said illuminable unit of the vehicle.

2) The illumination system, as claimed in claim 1, wherein the ambient light sensor mounted over the light exposed part of vehicle gets activated on the a lesser wavelength of light than a predefined wavelength threshold.

3) The illumination system, as claimed in claim 1, wherein said illumination unit, ambient sensor and the temperature and movement detection sensors are connected to a power source.

4) A process for illumination for a vehicle, characterized by illumination of a illumination unit only in the absence of a predefined wavelength of light comprising the steps of sensing of the predefined wavelength of light by a ambient light sensor and in the absence of said predefined wavelength supplying power to atleast one temperature and movement detection sensor mounted neighbouring an illuminable unit and neutralizing errors and noises by temperature and movement detection sensor and detecting change in temperature and movement in the vicinity of the vehicle and providing activation signal to atleast one illumination unit based upon predefined conditions.

5) A process for illumination, as claimed in claim 4, wherein the ambient light sensor mounted over the light exposed part of vehicle gets activated on the a lesser wavelength of light than a predefined wavelength threshold.

6) A process for illumination, as claimed in claim 4, wherein said illumination unit, ambient sensor and the temperature and movement detection sensors are receiving power from a power source through direct connection.