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Human Centric Lighting Solutions

[Mind + Body + Light]

Stimulating energy and alertness, improving cognition and mental performance
What is Human Centric Lighting(HCL)
Light is identified as a nutrient to human body just like food and water. Light is the most potent Zeitgeber;
literally ‘time-giver’ to entrain the mammalian circadian system.
LIGHT IMPACTS
Workspaces today are witnessing the third millennium revolution.
Work itself has undergone a transformation with so many of us spending most of our waking hours indoors at work. The need for agile and empowering workspaces is more imperative now than ever and lighting plays a vital role in entraining our circadian clocks with the natural day/light cycles.
Human Centric Lighting(HCL)
[Mind + Body + Light]
Human Centric Lighting(HCL) from Wipro Lighting aims
at creating a perfect synchrony of the Mind, Body & Light to craft workspaces that enhance employee wellbeing & productivity and make light work 'just right' for you.

HCL Benefits

Human centric lighting is intended to promote a person’s well-being, mood and health. It can improve concentration, safety and efficiency in workplaces or educational environments.

  • Mood

    Uplifting mood and maximizing energy levels

  • Productivity

    Improves concentration & energy levels leading to increased motivation

  • Visual Acuity

    Right light distribution offering clearness of vision

  • Circadian Rhythms

    High-performance lighting supporting the human biological clock

  • Perception

    Right light levels enhancing the designed environment experience

  • Sustainability

    Intelligent lighting solutions leading to a better environment

Circadian Rhythm
Rhythmicity is essential to life – from the beating of the heart for pumping oxygenated blood, to breathing of air by the lungs.

Circadian rhythms are intimately involved in living systems at environmental, organismal, and cellular levels. Circadian rhythms, by definition, are physical, mental, and behavioural changes that follow a 24 hour cycle.

Light perception occurs in the retina by three different types of photoreceptors – Cones, rods and the newly discovered intrinsically photosensitive retinal ganglion cells (ipRGCs).

These cells communicate with the master circadian pacemaker located in the suprachiasmatic nuclei (SCN) of the hypothalamus. The neuronal & hormonal activities thus generated by the SCN are responsible for entraining the circadian rhythm. This establishes a strong connection of Light with our Mind and Body.

The Design Principle
inSyncTM lighting works in harmony with the earth’s natural lighting cycle and can be programmed to mimic
the daylight –
  • Low light levels and low Correlated Colour Temperatures (CCT) in morning
  • High light levels and high CCTs at midday
  • Low light levels and low CCTs during evening
  • Extremely low light levels and a low CCT at night

Cool light High intensity

Cool light High intensity

Cool light High intensity

Cool light High intensity

Warm light Low intensity

Warm light Low intensity

Cool light High intensity

Cool light High intensity

Warm light Low intensity

Warm light Low intensity
  • Morning 06:00
  • Noon 12:00
  • Evening 06:00
  • Night 12:00
12 Noon
2:30 pmBest Cordination
3:30 pmFastest Reaction time
5:00 pmGreatest Cardiovascular
Efficiency and Muscle Strength
6:00 pmHighest Blood Pressure
7:00 pmHighest Body Temperature
9:00 pmMelatonin Secretion Starts
10:00 pmStart Feeling Sleepy
12:00 midnight
10:00 amHighest Alertness
7:30 amMelatonin Secretion Stops
6:45 amSharpest Blood Pressure Rise
6:00 am
4:30 amLowest Body
Temperature
2:00 amDeepest Sleep and
Restoration of the Body
12:00 pm

Provides for an energetic and fresh start to days work

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12 Noon

Alertness Still High

Ideal time for solving tricky problems or complex decision-making.
2:30 pm

Best Coordination

Right time to schedule business meetings and interact with colleagues.
3:30 pm

Fastest Reaction Time

Your long-term memory and reflexes are at their peak at this time.
5:00 pm

Greatest Cardiovascular Efficiency and Muscle Strength

Your alertness and activeness reaches another level making it the ideal time for a workout session.
6:00 pm

Highest Blood Pressure

Brisk walking can be a good option to keep your blood pressure in control.
7:00 pm

Highest Body Temperature

The liver effectively performs the metabolic processes in your body.
9:00 pm

Melatonin Secretion Starts

Perfect time to indulge in creative activities and open-ended thinking work.
10:00 pm

Start Feeling Sleepy

Your brain gives a signal that it needs rest.
12:00 midnight

Resting Phase

Your body should ideally be resting after a tiring day of work.
10:00 am

Highest Alertness

Best time to concentrate on your day’s toughest intellectual projects.
7:30 am

Melatonin Secretion Stops

Your alertness and focus begin to gradually increase during the first hours of the morning.
6:45 am

Sharpest Blood Pressure Rise

Your blood pressure suddenly increases as soon as you wake up.
6:00 am

Body Temperature Rises

Under natural conditions, your body temperature starts to rise just before you wake up.
4:30 am

Lowest Body Temperature

The body temperature reaches its lowest level at this time of your sleep.
2:00 am

Deepest Sleep and Restoration of the Body

Your body is in its resting phase and restoring energy for the next morning.
Proposed HCL Tuning
Right levels of alertness with the right light intensity.
Day Shifts

During daytime, bright light with high colour temperatures can provide a good start to the day, by suppressing the remaining melatonin in the body and increasing the cortisol levels.

The so-called ‘post lunch dip’ is a time of decreased alertness which occurs between 1 p.m. and 4 p.m. Higher alertness in the afternoon can therefore be induced by the using higher colour temperatures and higher light levels.

As work shifts end towards the evenings, an eventual tune to warm, comfortable lighting can help create the right condition for melatonin production and prepare for a good night’s sleep.

Night Shifts

People working in night shifts on a regular basis work against their biological clock and rhythm. Bright light at night increases alertness during night-time and improves work efficiency. However, prolonged exposure to bluish white light can cause a severe disruption in the sleep cycles leading to stress, fatigue and other health issues.

Workspaces therefore need to have the right lighting conditions to balance efficient working along with correct sleep cycles. High colour temperatures (bluish light) and high light levels are recommended at the beginning of the evening shift. Changing to lower levels and colour temperatures at the end of the night shift leaves them in a comfortable state of mind for a relaxed sleep ahead.

HCL Technology Platforms
Human Centric Lighting(HCL) aims at building spaces that promote wellbeing & productivity. Technology must be an enabler, not an inhibitor and hence Human Centric Lighting(HCL) can be delivered over three different technologies

Along with CCTV, IPTV, VoIP, Access points etc., bring the lighting system onto the LAN cable infrastructure, to enable a true IoT where things can really talk to each other without human interference.

How it Works?

All LED lighting luminaires and sensors are connected to a PoE switch, which is the only AC powered device in the entire system. The switch sends the power as well as the control signals through the DC powered CAT6 cables, which eliminates multiple cables and makes installation and maintenance easier and faster, initially and over a long period of time.

Best Suited for

New constructions (or deep retrofits) where the entire cabling is being done afresh, as well as the interconnections of multiple systems are required.

The most common technology for lighting controls in the past decade, that operates on a 4 wire system, providing greater familiarity and comfort to installers and contractors.

How it Works?

All LED lighting luminaires and sensors are connected to a DALI controller via 4 cables, of which 2 are for power and 2 are for controls. All the commands from the user are sent to the controller and then to the respective devices, ensuring reliable and fast communication. Integration with BMS and/or HVAC and smart features such as Human Centric Lighting can be provided with a specialized design.

Best Suited for

New or old constructions alike, where efficient and convenient lighting control from a singular point is paramount. Simplicity is preferred over the sophistication in such situations.

The most convenient method of enabling lighting controls, as there are no control cables involved. This system allows for the easiest method of commissioning and operating the lighting system.

How it Works?

The existing AC cables can be used to power the wireless modules which sit inconspicuously on the fixtures and connect to an authorized mobile device to provide fast and instant operation on lighting devices, as well as the most intuitive method of automating the on/off/dimming of the light luminaires.

Best Suited for

Existing offices that are undergoing a renovation; or spaces where installing new wiring is extremely difficult or impossible; or for new spaces where the highest priority is to have the easiest method of operating the lighting system.

HCL is for People

Human Centric Lighting(HCL) Lighting is designed for wellbeing at workspaces and its design principle considers three kinds of impacts that light can have on employees – visual, emotional and biological.

VISUAL IMPACT
  • Creates a visually comfortable and glare free workspace
  • Improves perceived lighting quality & attractiveness of workspaces
  • Enhances emotional connect with the space
EMOTIONAL IMPACT
  • Promotes a balanced emotional state
  • Improves resilience in stressful situations
  • Reduces fatigue and anxiety
BIOLOGICAL IMPACT
  • Improves alertness, cognition and productivity
  • Regulates circadian rhythm, sleep/wake cycles and body temperatures
  • Improves immunity reducing absenteeism
Benefits of Human Centric Lighting
Next to this, it has positive influence on the prevailing mood and on bodily functions, and positive effect on depression / anxiety states and on convalescence dynamic. Using it in offices where people spend the majority of their daytime has several benefits.
  • 23%

    Enhancement of alertness and higher satisfaction

  • 37%

    Significant increase of the concentration

  • 19%

    Increase of work performance

  • 27%

    Reduction of fatigue

6:00 AM

Color Temperature

2700K

Light Intensity

Coolness

08:00 AM

Color Temperature

3000K

Light Intensity

Coolness

10:00AM

Color Temperature

4000K

Light Intensity

Coolness

12:00PM

Color Temperature

5000K

Light Intensity

Coolness

14:00PM

Color Temperature

6500K

Light Intensity

Coolness

16:00PM

Color Temperature

7500K

Light Intensity

Coolness

18:00PM

Color Temperature

9000K

Light Intensity

Coolness

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