StudyLite was co-created with a team of specialists of Sankara Nethralaya, Chennai -one of the foremost eye care hospitals in India and supported on Optometric research by the Elite School of Optometry under its aegis.
After school, most children study for long hours. Studying in improper light especially during power cuts can cause eye strain and have other undesirable effects on a child’s health. Surprisingly, we found most study lamps available have no scientific basis to provide correct light for continuous studying. That is what made us seek help of Sankara Nethralaya.
When designing the StudyLite our prime concern was to create a lamp that will in no way harm eyes of children. Our engineering team worked in close collaboration with the team from The Elite School of Optometry of Sankara Nethralaya to develop the StudyLite within parameters arrived at by an extensive study of light parameters for continuos study. In StudyLite design we had to take into consideration factors such as Luminance (optimum spread of light in study area), Spectral Power Distribution (to ensure colour temperature of light), Illumination (uniform, flicker-free lighting and right colour rendering index), and Radiation Effect etc (no harmful ultra-violet or infra-red radiation).
Design Story
Eye Safety
Technology
Looks
Led Funda
Eye Safety
Human eye is a complex anatomical device with retina, cornea, iris, pupil and sclera as its main parts. Vision is a complicated process that requires all these components and brain to work together.
The initial processing however is carried out in the retina of the eye. Specifically, the photoreceptor neurons (called photoreceptors) in the retina collect the light and send signals to a network of neurons that then generates electrical impulses that go to the brain. The brain then processes those impulses and gives information about what we are seeing.
This however gets impacted by the amount of light that enters the eye. When exposed to bright light, the iris closes up, making the pupil very small, in order to limit the amount of light entering the eye. This keeps the retina from being damaged from very intense light. In low light conditions, the iris opens the pupil to allow more light in. Studies have however suggested that exposure to strong and dim lights for hours can harm the health of the eye.
Most stress related problems and headaches have been associated with excessive light. It has also been listed as the number two trigger for migraines. Fatigue is another common complaint from individuals exposed to over-illumination, especially with fluorescent media.
Stress and anxiety are also frequent outcomes from working in a setting of intense lighting. However in children over illumination interferes with their learning process. Children experiencing any form of stress are more likely to suffer from dyslexia, a problem of retarded study, noticed in children.
Design Story
Eye Safety
Technology
Looks
Led Funda
Technology
Given the severity of power cuts in many parts of India, while developing StudyLite, one of our main intents was to provide back-up light for 6 hours for uninterrupted studying. To do so we had to design a very efficient system.
As light source we chose premium quality white light LEDs. Typically, LEDs consume only 10% of energy when compared to ordinary incandescent bulbs. With LEDs we could make the battery back-up last up to 6 hours. We had to however choose the right type of LEDs that will provide lighting as specified by Sankara Nethralaya.
To make the design compact, as envisioned by Abhijit, we elected to use high quality rechargeable Nickel Metal Hydride(NiMH) battery packs. The battery packs are charged automatically when plugged to mains power with an over-charge protector to safeguard the batteries. This makes StudyLite convenient to use: there is no need for separate charging. The StudyLite can be kept always plugged on to AC mains. If power fails StudyLite will automatically switch over to back-up battery power to provide uninterrupted light
Also, to take into account wide mains voltage fluctuations in many areas, we designed StudyLite to operate over a wide range of mains power: 100-260 V AC with an AC adaptor providing power to the lamp. To make StudyLite child-safe, we designed it to operate on a low 12 V DC system.
In addition to low power consumption because of LED light, StudyLite has the provision to be charged by a Solar Power Panel (available as an optional accessory). This makes StudyLite a highly eco-friendly product.
Design Story
Eye Safety
Technology
Looks
Led Funda
Looks
We didn’t stop at developing the right study lamp for eyes. We wanted to give StudyLite a unique style that would win admiration anywhere in the world.
We had Abhijit Bansod, one of the best product designers in India, give StudyLite a stunningly simple form that is functional yet playful; aesthetically pleasing yet bold in character. This what Abhijit had to say about StudyLite:
“When designing StudyLite, I was inspired by the ring of halo that hovers above the head of the wise and saintly. Such sages impart wisdom. Guide us onto the right path. And provide solace at moments of crisis.
To me light is the quintessential metaphor of enlightenment. So, I intended to have a ring of light glowing above the head when a child is studying.
In its form, halo to me is almost magical. A ring suspended in nothingness. Open. With no ego centre. Spreading light all around. Perfect in its completeness.
In StudyLite I have tried to keep everything simple yet iconic.”
The StudyLite design combines a unique mix of modern material and light form to create a study lamp that is a light apart.
Design Story
Eye Safety
Technology
Looks
Led Funda
Led Funda
This Studylite uses LED light which is a marvel of modern technology. An LED, or Light Emitting Diode, as an energy efficient light source is now rapidly replacing the conventional incandescent light bulb. An LED light is also much more efficient than fluorescent tubes, compact fluorescent lamps (CFL) and halogen lights.
An LED is a semiconductor diode that emits light when electric current passes through it. The effect is a type of electro-luminescence. An LED is usually very small (less than 1 mm2) but uses an optical lens and a reflector inside to shed powerful directional light. The colour of the emitted light – blue, red, green etc. – depends on what type of semiconductor is used. In Studylite we have used premium quality white light LEDs; in the illumination ring there is
a circle of 24 LEDs which together make enough light to study comfortably even when there is darkness all around such as during power failure. Mind you some of the cheap LEDs lights hawked around can be pretty bad for the eyes.
LEDs have been in wide use in electronic devices such as digital meters and traffic light indicators, but are now being used as a high power light source. In a conventional incandescent bulb only about 10% of the energy consumed is converted into light, the rest is wasted as heat. LEDs are much more energy efficient. For example, you can replace a 40W ordinary bulb with just a 4W LED light for a similar light ambience and cut down energy consumption by a whopping 90%.
Because LEDs use very little energy they save electric power and thus our environment; if everyone wisely starts using LED lights the world will save lots of electric power and thus, we will have to burn less coal or oil.
Also, an LED light has a lifespan of about 100,000 hours which means if you use an LED light for 10 hours every day in a year, it will last you more than 25 years! Compare this to a traditional incandescent bulb which lasts about 2,000 hours and thus requires frequent replacement. What a waste! No wonder why progressive-thinking governments around the world are already planning to ban incandescent bulbs in the near future and switch over to LED lighting
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