Living with light – When lighting is human-centered

Over a history of more than 400,000 years of formation and development, people are increasingly concerned about the role and impact of artificial light on their health.

Artificial light and things you don’t know

Fire is the world’s first artificial light source, invented by cavemen to dispel darkness from about 400,000 BC. Ancient civilizations also took advantage of this method of artificial lighting in many different forms such as: replacing firewood with animal fat (13,000 BC), using sedge to create sedge lamps (Egypt – 3,000 BC), kerosene lamps (1,500 BC), tallow candles (100 AD) and gas (early 19th century). The most typical of this period must be mentioned in 1807, London made the whole world admire when turning Pall Mall into the first street in the world to be lit by gas lamps.

Also in the early 19th century, the electric light was first introduced to the world with the invention of the arc light by Humphrey Davy (1802) and the incandescent electric light bulb by Thomas Edison (1839). Over the past 10 decades, history has witnessed a series of great lighting inventions that have changed the world, not to mention the fluorescent lamp (CFL), neon light, laser beam, etc.

However, the most significant achievement in the lighting industry is the light emitting diode – also known as Light Emitting Diode (LED) – a technology invented by Nick Holonyack, a General Electric engineer in 1962. Since then, researchers and engineers have continued to experiment with semiconductors with the goal of producing more high-performance LED chips in a variety of colors. In 1994, Japanese engineer Shuji Nakamura invented the LED chip with blue light, which is the premise for many commercial LED lights that are widely used today. Currently, LED lights are considered as the leading energy-saving lighting technology on the market.

Living with light - When lighting is human-centered - Photo 1.

history of formation and development of artificial light (Image credit: Unios)

Man is the center of light

If in the past, inventions and research were focused on improving the quality of light, in recent decades, all improvements have focused on human health. A space that integrates lighting products with the most modern technology with a variety of functions will not necessarily improve the quality of life if we do not use them rationally, in accordance with the life cycle. learning of the body; thereby causing negative effects on health, mental health and work productivity.

For example, from 00:00 to 5:00 a.m., the body is in a deep sleep and has a low temperature (body temperature reaches its lowest point around 4:00 a.m.). At this time, we need to minimize exposure to light so as not to disrupt the body’s rest cycle.

Living with light - When lighting is human-centered - Photo 2.

Light directly affects human circadian rhythms (Image credit:Unios)

Because of the close relationship between light and the human circadian cycle, the keyword “Human Centric Lighting – HCL” is a topic of leading interest in the industry. lighting industry. HCL mimics the circadian cycle to precisely regulate our natural reflexes. Lighting designers are forced to understand how this concept impacts the health, productivity and overall well-being of their users, so that a well-established HCL system can support visual and visual functions. our biological lake. Simply put, the light from the HCL system helps the body know when to stay awake and when to relax. This method is a new step in the design and use of LED lights with the aim of supporting human rhythms, enhancing concentration, reducing sleep disruption and improving quality of life.

Now, you can experience this smart lighting system and HCL concept at the showrooms of Unios – an architectural lighting company from Australia:

Unions HCM: B2, Canary Tower, Diamond Island

Unios Hanoi: E2, Chelsea Residence, 48 Tran Kim Xuyen, Cau Giay District


#Unios #Noithat #Anhsang


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