WO2022096937A1

WO2022096937A1 - An illumination device for allignment of circadian rhythm and a method to operate the same

Info

Publication number: WO2022096937A1
Application number: PCT/IB2021/051810
Authority: WO
Inventors: Girish Bhardwaj; Tashi Agarwal
Original assignee: Girish Bhardwaj; Tashi Agarwal
Priority date: 2020-11-03
Filing date: 2021-03-04
Publication date: 2022-05-12

Abstract

An illumination device for alignment of circadian rhythm is disclosed. The device includes a lighting module including an LED base mounting plate coupled to a diffuser. The lighting module includes LEDs coupled to an LED driver via the LED base mounting plate. The LEDs includes red color LEDs, blue color LEDs and white color LEDs. The LEDs are arranged in a predefined pattern comprising the red color LEDs and the blue color LEDs are alternatively arranged and surrounded by the white color LEDs in an order for uniform illumination of red, blue and white color light corresponding to the circadian rhythm. The device includes a controlling module to control intensity and color temperature of the LEDs arranged in the predefined pattern corresponding to a predefined wavelength at calculated intervals throughout a day and thereby triggering alignment of the circadian rhythm, melanopic pattern and human centric vision lighting for an occupant.

Description

AN ILLUMINATION DEVICE FOR ALLIGNMENT OF CIRCADIAN RHYTHM AND A METHOD TO OPERATE THE SAME

This International Application claims priority from a Patent application filed in India having Patent Application No. 202021048013, filed on November 03, 2020, and titled “AN ILLUMINATION DEVICE FOR ALLIGNMENT OF CIRCADIAN RHYTHM AND A METHOD TO OPERATE THE SAME”.

FIELD OF INVENTION

Embodiments of the present disclosure relate to lighting system to achieve human centric vision light and more particularly to an illumination device for alignment of circadian rhythm and a method to operate the same.

BACKGROUND

The impact of chronic sleep disruption and reduced sleep on the promotion and interaction of physiological stress via the hypothalamic-pituitary-adrenal (HP A). Also, aligning the pineal gland for melatonin secretions and sympatho-adreno-medullary (SAM) axes and psychosocial stress by managing the serotonin and dopamine responsible for wellbeing parameters from our brains, which are somewhere related to the chemical and electrical reactions thru synaptic. Whereby sleep loss and fatigue result in an imbalance between the demands placed upon an individual and an inability of the individual to manage these demands. Individual’s daily circadian rhythms and sleep/wake cycle allows the everyone to function optimally in a dynamic world, adjusting our biology to the demands imposed by the day/night cycle. Ultimately, the combined and interlocking effects of physiological and psychosocial stress lead to emotional, cognitive and physiological pathologies.

Conventionally, efforts made to address this problem fall well short of the goal of a practical, broadly applicable, and effective therapy. For example, pharmacologic treatments of sleepiness and daytime sleep disturbance in shift workers are now available, but there are obvious concerns about the widespread chronic utilization of these medications in the broad shift work population. Moreover, pharmacological treatments of sleep disturbance and sleepiness do not alter the underlying mismatch between the internal circadian timing system and the shift schedule. However, there is always a need for a non- invasive technique to overcome such issues exhibit with therapies.

With advancement in technology, some of the lighting systems has been introduced to address the aforementioned issues. Such available circadian lighting systems produce a “colder” bluish light during the day to initiate greater circadian stimulation and a “warmer” reddish light during the evening, to diminish said stimulation. The bluish light is well known to be more effective at suppressing melatonin. However, such available lighting systems are perceivably bluer during the day and perceivably redder in the evening such that there is a prominent and noticeable color shift and as well an overall perceived brightness shift during the operation time. This is perhaps one of the reasons why many commercially available circadian lighting systems are sold as individual units such that they may be independently switched on and off as needed to produce the desired biological/physiological benefit, much like how one switches on a nightlight only in the evening. The prominent color shift makes state-of-the-art circadian lighting systems less suitable for general purpose lighting that requires good color rendering for a task performed thereunder. Further it may be annoying or bothersome due to the visible color shifting, especially for computer monitors and other personal electronic devices where background lighting surrounding the visual task is prominent.

Hence, there is a need for an improved lighting system for alignment of circadian rhythm to address the aforementioned issue(s).

BRIEF DESCRIPTION

In accordance with an embodiment of the present disclosure, an illumination device for alignment of circadian rhythm is provided. The device includes a lighting module including a light emitting diode (LED) base mounting plate coupled to a diffuser. The lighting module also includes a plurality of light emitting diodes coupled to a light emitting diode driver via the light emitting diode base mounting plate. The plurality of light emitting diode includes a plurality of red color light emitting diodes, a plurality of blue color light emitting diodes and a plurality of white color light emitting diodes. The plurality of light emitting diodes are arranged in a predefined pattern comprising the plurality of red color light emitting diodes and the plurality of blue color light emitting diodes are alternatively arranged and surrounded by the plurality of white color light emitting diodes in an order for uniform illumination of red, blue and white color light corresponding to the circadian rhythm. The device also includes a controlling module communicatively coupled to the lighting module. The controlling module is configured to control intensity and color temperature of the plurality of light emitting diodes arranged in the predefined pattern corresponding to a predefined wavelength at calculated intervals throughout a day and thereby triggering alignment of the circadian rhythm, melanopic pattern and human centric vision lighting for an occupant of an indoor space.

In accordance with another embodiment of the present disclosure, a method to operate the illumination device for alignment of circadian rhythm is provided. The method includes illuminating red, blue and white color light, by a plurality of light emitting diodes, uniformly corresponding to a plurality of red color light emitting diodes, a plurality of blue color light emitting diodes and a plurality of white color light emitting diodes of a plurality of diodes based on circadian rhythm, where the plurality of light emitting diodes are arranged in a predefined pattern comprising the plurality of red color light emitting diodes and the plurality of blue color light emitting diodes are alternatively arranged and surrounded by the plurality of white color light emitting diodes in an order. The method also includes controlling, by a controlling module, intensity and color temperature of the plurality of light emitting diodes arranged in the predefined pattern corresponding to a predefined wavelength at calculated intervals throughout a day and thereby triggering alignment of the circadian rhythm, melanopic pattern and human centric vision lighting for an occupant of an indoor space.

To further clarify the advantages and features of the present disclosure, a more particular description of the disclosure will follow by reference to specific embodiments thereof, which are illustrated in the appended figures. It is to be appreciated that these figures depict only typical embodiments of the disclosure and are therefore not to be considered limiting in scope. The disclosure will be described and explained with additional specificity and detail with the appended figures. BRIEF DESCRIPTION OF THE DRAWINGS

The disclosure will be described and explained with additional specificity and detail with the accompanying figures in which:

FIG. 1 is a schematic representation of an illumination device for alignment of circadian rhythm in accordance with an embodiment of the present disclosure;

FIG. 2 is a schematic representation of one embodiment of the lighting module of FIG. 1 in accordance with an embodiment of the present disclosure;

FIG. 3 is a schematic of one embodiment of lighting module of FIG. 1, depicting arrangement of the plurality of light emitting diode in accordance with an embodiment of the present disclosure;

FIG. 4 is a schematic representation of one embodiment of the controlling module of FIG. 1 in accordance with an embodiment of the present disclosure;

FIG. 5(a) and FIG. 5(b) illustrates a graphical representation of exemplary embodiment of the controlling mechanism of the illumination device of FIG. 1, depicting schedule variation with respect to multiple parameters in accordance with an embodiment of the present disclosure;

FIG. 6 is a graphical representation of experimental analysis of the illumination device of FIG. 1 in accordance with an embodiment of the present disclosure; and

FIG. 7 is a flow chart representing the steps involved in a method to operate illumination device for alignment of circadian rhythm in accordance with an embodiment of the present disclosure.

Further, those skilled in the art will appreciate that elements in the figures are illustrated for simplicity and may not have necessarily been drawn to scale. Furthermore, in terms of the construction of the device, one or more components of the device may have been represented in the figures by conventional symbols, and the figures may show only those specific details that are pertinent to understanding the embodiments of the present disclosure so as not to obscure the figures with details that will be readily apparent to those skilled in the art having the benefit of the description herein.

DETAILED DESCRIPTION

For the purpose of promoting an understanding of the principles of the disclosure, reference will now be made to the embodiment illustrated in the figures and specific language will be used to describe them. It will nevertheless be understood that no limitation of the scope of the disclosure is thereby intended. Such alterations and further modifications in the illustrated system, and such further applications of the principles of the disclosure as would normally occur to those skilled in the art are to be construed as being within the scope of the present disclosure.

The terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process or method that comprises a list of steps does not include only those steps but may include other steps not expressly listed or inherent to such a process or method. Similarly, one or more devices or sub-systems or elements or structures or components preceded by "comprises... a" does not, without more constraints, preclude the existence of other devices, sub-systems, elements, structures, components, additional devices, additional sub-systems, additional elements, additional structures or additional components. Appearances of the phrase "in an embodiment", "in another embodiment" and similar language throughout this specification may, but not necessarily do, all refer to the same embodiment.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this disclosure belongs. The system, methods, and examples provided herein are only illustrative and not intended to be limiting.

In the following specification and the claims, reference will be made to a number of terms, which shall be defined to have the following meanings. The singular forms “a”, “an”, and “the” include plural references unless the context clearly dictates otherwise. Embodiments of the present disclosure relate to an illumination device for alignment of circadian rhythm and method to operate the same. The device includes a lighting module including a light emitting diode (LED) base mounting plate coupled to a diffuser. The lighting module also includes a plurality of light emitting diodes coupled to a light emitting diode driver via the light emitting diode base mounting plate. The plurality of light emitting diode includes a plurality of red color light emitting diodes, a plurality of blue color light emitting diodes and a plurality of white color light emitting diodes. The plurality of light emitting diodes are arranged in a predefined pattern comprising the plurality of red color light emitting diodes and the plurality of blue color light emitting diodes are alternatively arranged and surrounded by the plurality of white color light emitting diodes in an order for uniform illumination of red, blue and white color light corresponding to the circadian rhythm. The device also includes a controlling module communicatively coupled to the lighting module. The controlling module is configured to control intensity and color temperature of the plurality of light emitting diodes arranged in the predefined pattern corresponding to a predefined wavelength at calculated intervals throughout a day and thereby triggering alignment of the circadian rhythm, melanopic pattern and human centric vision lighting for an occupant of an indoor space.

FIG. 1 is a schematic representation of an illumination device (10) for alignment of circadian rhythm in accordance with an embodiment of the present disclosure. The illumination device (10) includes a lighting module (20). The lighting module (10) includes a plurality of light emitting diodes (LEDs) (30). The plurality of light emitting diodes (30) includes a plurality of red color light emitting diodes, a plurality of blue color light emitting diodes and a plurality of white color light emitting diodes. The illumination device (10) also includes a controlling module (40) which is configured to control the operation of the plurality of light emitting diodes (30) to trigger alignment of the circadian rhythm, melanopic pattern and human centric vision lighting for an occupant of an indoor space. In one embodiment, the illumination device (10) includes a power storage device (50) coupled to the lighting device (20). The power storage device is configured to provide power to the lighting device. One embodiment of the lighting module (20) is described in detail in FIG.

2. FIG. 2 is a schematic representation of one embodiment of the lighting module (20) of FIG. 1 in accordance with an embodiment of the present disclosure. The lighting module (20) includes a light emitting diode (LED) base mounting plate (60) coupled to a diffuser (70), wherein the diffuser is disposed in a louver (80). As used herein, diffuser is a transparent optical part with specialized 3D structures that control light by refraction. The refractors are used in luminaires to ensure the emitted light is distributed uniformly according to a desired LIDC and with minimal glare. The LED base mounting plate (60) is configured to accommodate a heat sink (90) to transfer the heat generated by electronics of the lighting module. Furthermore, the heat sink (90) is configured to accommodate LED driver (100). The LED driver (100) provides protection to the LED bulbs against current and voltage fluctuations. The drivers ensure that the voltage and current to the LED bulbs remains within the operating range of the LEDs regardless of fluctuations in the mains supply. FIG. 2(a), 2(b) and 2(c) depicts various version recessed corresponding to 2 feet x 2 feet version recessed (110), 4 feet x 2 feet version recessed (120), and 4 feet x 1 feet version suspended (130) respectively. In one embodiment, the lighting module (20) may be in a form of panels including troffers, task lamps, bed lamps, table lamps, under counter, over counter, vanity, wall, ceiling, sconce or the like.

FIG. 3 is a schematic of one embodiment of lighting module (20) of FIG. 1, depicting arrangement of the plurality of light emitting diodes (30) in accordance with an embodiment of the present disclosure. The lighting module includes the plurality of light emitting diodes (LEDs). The plurality of light emitting diode includes a plurality of red color light emitting diodes (140), a plurality of blue color light emitting diodes (150) and a plurality of white color light emitting diodes (160). The plurality of light emitting diodes are arranged in a predefined pattern comprising the plurality of red color light emitting diodes (140) and the plurality of blue color light emitting diodes (150) are alternatively arranged and surrounded by the plurality of white color light emitting diodes ( 160) in an order for uniform illumination of red, blue and white color light corresponding to the circadian rhythm. In one embodiment, the plurality of light emitting diodes (30) may include a combination of about 410-490nm, 580-680nm, 800-900nm electroluminescence with corrected color temperature (CCT) of tunable downward component of about 2200 K- 6500K. In such an embodiment, the white color light emitting diode (160) may include luminous flux of about 1000-50001m and circadian stimulus greater than 0.1 enables circadian stimulus suppression and activation based on the calculated time intervals of the day. In a specific embodiment, the plurality of white color light emitting diodes (160) may include irradiance of about greater than 0.043251 mW/m sq. and enables physiological effect on limbic parameters in accordance with a constant MP ration with defined exposure time for the occupant. In some embodiments, the plurality of blue color light emitting diodes (150) may include irradiance of about greater than 0.0021698 mW/m sq. and enables stimulation of hypothalamic -pituitary-adrenal (HPA) and intrinsically photosensitive retinal ganglion cells (ipRGC). In one embodiment, the plurality of red color light emitting diodes (140) may include irradiance of about greater than 0.0054162 mW/m sq. and enables stimulation of regeneration of stressed cells to release the melatonin.

FIG. 4 is a schematic representation of one embodiment (45) of the controlling module (40) of FIG. 1 in accordance with an embodiment of the present disclosure. The controlling module (40) is communicatively coupled to the lighting module. The controlling module (40) is configured to control intensity and color temperature of the plurality of light emitting diodes arranged in the predefined pattern corresponding to a predefined wavelength at calculated intervals throughout a day and thereby triggering alignment of the circadian rhythm, melanopic pattern and human centric vision lighting for an occupant of an indoor space. In one embodiment, the controlling module (40) may be configured to control the plurality of light emitting diodes of the lighting device via a wireless communication medium (170). In such an embodiment, the wireless communication medium (170) may include at least one of Bluetooth, wi-fi or infrared radiation. In some embodiments, the controlling module (40) may use wireless remote controls, voice control, voice recognition, or the like via Bluetooth, ISM, other wireless frequencies to control the lighting module. In a specific embodiment, the controlling module (40) may be configured to selectively change operation of the plurality of red color light emitting diodes and the plurality of blue color light emitting diodes based on the time of the day to achieve circadian rhythm.

The controlling module (40) may use user device (175) such as mobile phones, tablets, computers, dedicated remote controls, to provide lighting appropriate for circadian rhythm alignment, correction, support, maintenance or the like that may coordinate wake-up and sleep times whether on a ‘natural’ or shifted (for example, night workers, shift workers) to set and align their sleep patterns and circadian rhythm to appropriate phases including time shifts and time zone shifts due to work and other related matters. In one embodiment, the controlling module (40) may include a light sensor (180), and the controlling module is adapted to generate lighting control commands based on an ambient light level sensed by the light sensor. The controlling module may trigger shorter (blue) wavelength light to stimulate and awaken or support waking and healthy state functionality and trigger longer (red) wavelength light to promote sleep and rest state. For example, red light emitting diodes (LEDs) may be used for sleep and blue LED(s) or for waking and to simulate the exposure to natural sunlight. However, white light along with blue color/wavelength light may be dimming up to a preset, optimum, and/or maximum brightness or setting, for wakeup in the morning. For shift workers who work at night and sleep during the day or part of the day, the controlling module may manually or automatically determine and set based on the work and sleep schedule of an individual or groups of individuals, along with potentially other information.

FIG. 5(a) and FIG. 5(b) illustrates a graphical representation of exemplary embodiment of the controlling mechanism of the illumination device of FIG. 1, depicting schedule variation with respect to multiple parameters in accordance with an embodiment of the present disclosure. FIG. 5(a) (200) and FIG. 5(b) (210) represents variation in light intensity with respect to the color temperature over a different time periods of the day. The x-axis (220) of both the graphs represent color temperature (in kelvins) and y-axis (230) of both the graphs represent output intensity (in percentage). FIG. 5(a) depicts changes in circadian stimulation (CS) values may be achieved by simply increasing or decreasing the device’s light output while keeping the same correlated color temperature (CCT). At a constant color temperature (3000K), the light output, CS and EH values decrease from morning 7 am to evening 6pm. FIG. 5(b) depicts that dynamic CCT luminaires may be programmed to deliver customized CS dosage schedules. At a constant color temperature (5000K), CS is constant 0.3 at different time of the day. Similarly, the constant color temperature (3500K) and (3000K), CS is constant 0.2 and 0.15 respectively at different time of the day. FIG. 6 is a graphical representation of experimental analysis (250) of the illumination device of FIG. 1 in accordance with an embodiment of the present disclosure. The graph represents behavior and performance measurement of occupants under the circadian light fixture. This study aims for quantification of the test parameters under the various combinations of color temperatures, intensities and monochromatic colored light varying with time. The participating occupants will be measured under four parameters such as time cues (260), cognitive performance (270), stress relieving (280) and sleep quality (290). The occupant’s demography is as shown below in table- 1:

Table- 1 The results depict that the time cues, cognitive performance, stress and sleep of the people exposed to the illumination device has been increase over a period (295) of 90 days.

FIG. 7 is a flow chart representing the steps involved in a method (300) to operate illumination device for alignment of circadian rhythm in accordance with an embodiment of the present disclosure. The method (300) includes illuminating red, blue and white color light, by a plurality of light emitting diodes, uniformly corresponding to a plurality of red color light emitting diodes, a plurality of blue color light emitting diodes and a plurality of white color light emitting diodes of a plurality of diodes based on circadian rhythm. The plurality of light emitting diodes are arranged in a predefined pattern comprising the plurality of red color light emitting diodes and the plurality of blue color light emitting diodes are alternatively arranged and surrounded by the plurality of white color light emitting diodes in an order in step 310.

In one embodiment, illuminating red, blue and white color light may include a combination of about 410-490nm, 580-680nm, 800-900nm electroluminescence with corrected color temperature (CCT) of tunable downward component of about 2200K-6500K. In such an embodiment, illuminating the white color light may include luminous flux of about 1000- 50001m and circadian stimulus greater than 0.1 enables circadian stimulus suppression and activation based on the calculated time intervals of the day. In a specific embodiment, illuminating the white color light may include irradiance of about greater than 0.043251 mW/m sq. and enables physiological effect on limbic parameters in accordance with a constant MP ration with defined exposure time for the occupant. In some embodiments, illuminating blue color light may include irradiance of about greater than 0.0021698 mW/m sq. and enables stimulation of hypothalamic-pituitary-adrenal (HP A) and intrinsically photosensitive retinal ganglion cells (ipRGC). In one embodiment, illuminating the red color light may include irradiance of about greater than 0.0054162 mW/m sq. and enables stimulation of regeneration of stressed cells to release the melatonin.

The method (300) further includes controlling, by a controlling module, intensity and color temperature of the plurality of light emitting diodes arranged in the predefined pattern corresponding to a predefined wavelength at calculated intervals throughout a day and thereby triggering alignment of the circadian rhythm, melanopic pattern and human centric vision lighting for an occupant of an indoor space in step 320. In one embodiment, the method (300) includes selectively changing operation of the plurality of red color light emitting diodes and the plurality of blue color light emitting diodes based on the time of the day to achieve circadian rhythm. In such an embodiment, selectively changing operation may include selectively changing operation of the plurality of red color light emitting diodes and the plurality of blue color light emitting diodes by the controlling module. In a specific embodiment, controlling the intensity and the color temperature of the plurality of light emitting diodes may include controlling the plurality of light emitting diodes of the lighting device via a wireless communication medium comprising at least one of Bluetooth, wi-fi or infrared radiation. Various embodiments of the illumination device as described above enables a modular, adaptive and intelligent lighting tool designed for the aligning biological rhythm, MP ratios, melanopic pattern, human centric and human centric vision lighting for the wellbeing of the humans while meeting the visual needs (physiologically and psychologically - limbic part of the brain) of the occupants of any space. The illumination device is designed using specific wavelengths of light which are scientifically proven to aid to photo: biostimulation and triggering cortisols /melatonin, together with high quality LEDs which can be tuned to the required color temperature.

The illumination device houses intelligent program embedded to tune to the circadian requirements of the occupants of spaces along with triggering the photo stimulus at calculated intervals throughout the day. The device includes high quality electronics and control ensures to meet stringent flicker and EMF emission norms which further makes the device safe and secure for daily usage. The device helps in aligning the melanopic pattern, reduce the stress, improve productivity, improve sleep pattern, provide a feel good factor environment while working and help to achieve rejuvenated workspace.

It will be understood by those skilled in the art that the foregoing general description and the following detailed description are exemplary and explanatory of the disclosure and are not intended to be restrictive thereof.

While specific language has been used to describe the disclosure, any limitations arising on account of the same are not intended. As would be apparent to a person skilled in the art, various working modifications may be made to the method in order to implement the inventive concept as taught herein.

The figures and the foregoing description give examples of embodiments. Those skilled in the art will appreciate that one or more of the described elements may well be combined into a single functional element. Alternatively, certain elements may be split into multiple functional elements. Elements from one embodiment may be added to another embodiment. For example, the order of processes described herein may be changed and are not limited to the manner described herein. Moreover, the actions of any flow diagram need not be implemented in the order shown; nor do all of the acts need to be necessarily performed. Also, those acts that are not dependent on other acts may be performed in parallel with the other acts. The scope of embodiments is by no means limited by these specific examples.

Claims

WE CLAIM:

1. An illumination device (10) for alignment of circadian rhythm comprising: a lighting module (20) comprising: a light emitting diode (LED) base mounting plate (60) coupled to a diffuser (70); a plurality of light emitting diodes (30) coupled to a light emitting diode driver (100) via the light emitting diode base mounting plate (60), wherein the plurality of light emitting diodes (30) comprises a plurality of red color light emitting diodes (140), a plurality of blue color light emitting diodes (150) and a plurality of white color light emitting diodes (160), wherein the plurality of light emitting diodes (30) are arranged in a predefined pattern comprising the plurality of red color light emitting diodes (140) and the plurality of blue color light emitting diodes (150) are alternatively arranged and surrounded by the plurality of white color light emitting diodes (160) in an order for uniform illumination of red, blue and white color light corresponding to the circadian rhythm; a controlling module (40) communicatively coupled to the lighting module (20), wherein the controlling module (40) is configured to control intensity and color temperature of the plurality of light emitting diodes (30) arranged in the predefined pattern corresponding to a predefined wavelength at calculated intervals throughout a day and thereby triggering alignment of the circadian rhythm, melanopic pattern and human centric vision lighting for an occupant of an indoor space.

2. The device (10) as claimed in claim 1, wherein the plurality of light emitting diodes (30) comprises a combination of about 410-490nm, 580-680nm, 800-900nm electroluminescence with corrected color temperature (CCT) of tunable downward component of about 2200K-6500K.

3. The device (10) as claimed in claim 1, wherein the plurality of white color light emitting diodes (160) comprises luminous flux of about 1000-50001m and circadian stimulus greater than 0.1 enables circadian stimulus suppression and activation based on the calculated time intervals of the day.

4. The device (10) as claimed in claim 1, wherein the plurality of white color light emitting diodes ( 160) comprises irradiance of about greater than 0.043251 mW/m sq. and enables physiological effect on limbic parameters in accordance with a constant MP ration with defined exposure time for the occupant.

5. The device (10) as claimed in claim 1, wherein the plurality of blue color light emitting diodes (150) comprises irradiance of about greater than 0.0021698 mW/m sq. and enables stimulation of hypothalamic -pituitary-adrenal (HPA) and intrinsically photosensitive retinal ganglion cells (ipRGC).

6. The device (10) as claimed in claim 1, wherein the plurality of red color light emitting diodes (140) comprises irradiance of about greater than 0.0054162 mW/m sq. and enables stimulation of regeneration of stressed cells to release the melatonin.

7. The device (10) as claimed in claim 1, wherein the lighting module (20) comprises a heat sink (90) disposed within the light emitting diode (LED) base mounting plate (60) and coupled to the light emitting diode driver (100).

8. The device (10) as claimed in claim 1, wherein the controlling module (40) is configured to control the plurality of light emitting diodes (30) of the lighting module (20) via a wireless communication medium (170) comprising at least one of Bluetooth, wi-fi or infrared radiation.

9. The device (10) as claimed in claim 1, wherein the controlling module (40) is configured to selectively change operation of the plurality of red color light emitting diodes (140) and the plurality of blue color light emitting diodes (150) based on the time of the day to achieve circadian rhythm.

10. A method (300) comprising: 16 illuminating red, blue and white color light, by a plurality of light emitting diodes, uniformly corresponding to a plurality of red color light emitting diodes, a plurality of blue color light emitting diodes and a plurality of white color light emitting diodes of a plurality of diodes based on circadian rhythm, wherein the plurality of light emitting diodes are arranged in a predefined pattern comprising the plurality of red color light emitting diodes and the plurality of blue color light emitting diodes are alternatively arranged and surrounded by the plurality of white color light emitting diodes in an order; (310) and controlling, by a controlling module, intensity and color temperature of the plurality of light emitting diodes arranged in the predefined pattern corresponding to a predefined wavelength at calculated intervals throughout a day and thereby triggering alignment of the circadian rhythm, melanopic pattern and human centric vision lighting for an occupant of an indoor space. (320)