{"id":5125,"date":"2020-04-24T07:51:22","date_gmt":"2020-04-24T05:51:22","guid":{"rendered":"https:\/\/www.segula.de\/?p=5125"},"modified":"2026-05-05T11:41:54","modified_gmt":"2026-05-05T09:41:54","slug":"hcl-human-centric-lighting","status":"publish","type":"post","link":"https:\/\/www.segula.de\/en\/hcl-human-centric-lighting\/","title":{"rendered":"HCL – Human Centric Lighting"},"content":{"rendered":"

What is HCL?<\/h2>\n

What does that mean? Very simple: the human being is at the centre of a lighting concept<\/strong>. At the beginning of the 21st century, researchers discovered a third photoreceptor in the human eye, which has nothing to do with the actual visual ability. In fact, it regulates our inner clock, controls the day-night rhythm and influences our well-being.<\/p>\n

 <\/p>\n

NEW REQUIREMENTS FOR ARTIFICIAL LIGHTING<\/span><\/h3>\n

With this discovery, it became clear that artificial lighting has to meet many more requirements than simply providing light. Regardless of the sector. Lighting in the workplace, for example, should motivate and promote concentration. At home, on the other hand, it should be cosy and pleasant at the end of the working day.<\/p>\n

The biological effects of light cannot be ignored and are therefore increasingly being taken into account in the planning of lighting concepts.<\/p>\n

 <\/p>\n

\"HCL,<\/p>\n

 <\/p>\n

THE NATURAL RHYTHM WITH HCL<\/h3>\n

HCL skilfully transfers the natural interplay of daylight, twilight and night to interiors and thus makes use of the biological effect of different lighting moods. Biologists, psychologists, architects and lighting designers now often work hand in hand.<\/p>\n

Life is regulated by time and space. 365 days, 24 hours, day, night, seasons in different places – everything has a rhythm and a dynamic. In the course of time, man has become accustomed to this natural rhythm and the body has adjusted to it. With the HCL – Lighting Design we reproduce this biological process, even better: we can even change bad habits, we can adjust rooms with little or no daylight to it and with the artificial, dynamic lighting we can positively influence our life. Dynamic light brings more quality of life, performance and well-being.<\/p>\n

 <\/p>\n

\"HCL,
Der human biorhythm<\/figcaption><\/figure>\n

 <\/p>\n

HCL AND HEALTH FACTOR<\/h3>\n

Proper lighting also plays a role in the healthcare sector. Light therapy is used to treat depression and symptoms of fatigue, among other things. Dynamic light helps to restore the human bio-rhythm and to keep the inner clock ticking correctly. We can sleep better again, we are fitter in the morning and more concentrated at work. Hospitals and nursing homes are already working with HCL light concepts<\/span><\/p>\n

 <\/p>\n

VERY SHORT:<\/h4>\n

In the morning:<\/strong> Sunrise – it becomes bright, the body produces hormones to wake up and get fit<\/p>\n

Midday:<\/strong> Daylight with a high blue component and luminosity, keeps us awake and concentrated<\/p>\n

Evening:<\/strong> Warm sunset light brings the body down, relaxes and makes us tired<\/p>\n

 <\/p>\n

\"HCL,<\/p>\n

 <\/p>\n

HUMAN CENTRIC LIGHTING CONCEPT<\/h3>\n

 <\/p>\n

Thus, HCL lighting concepts use luminaires and lamps in various luminous intensities and colour temperatures that simulate the natural rhythm at different times of day. Decisive factors are the conditions that are simulated by daylight:<\/p>\n

    \n
  1. illuminance<\/strong><\/li>\n
  2. direction of light<\/strong><\/li>\n
  3. colour temperature<\/strong><\/li>\n<\/ol>\n

    are three of many. Smart lighting control systems can be set up to control the system, which automatically regulate the process independently according to the time of year, day and time. Of course, this can also be controlled manually. Surely, infinitely variable and dimmable systems that don’t even attract attention are best.<\/p>\n

    <\/h1>\n

    HCL APPLICATION AREAS<\/p>\n

    3 useful applications for HCL concepts in which proven effects are achieved:<\/p>\n

      \n
    1. office \/ workplace<\/li>\n
    2. school \/ educational institution<\/li>\n
    3. at home<\/li>\n<\/ol>\n

       <\/p>\n

      HUMAN CENTRIC LIGHTING IN THE OFFICE<\/h3>\n

      Dynamic lighting according to the HCL principle is extremely useful, especially at workplaces with little daylight. Not only the light intensity alone should be considered, but also the direction of light and colour temperature. Stimulating, direct morning light at the start of work, cool, somewhat diffuse daylight to counteract the midday lull, slow fading away to warmer light colours towards the end of the day.<\/p>\n

      Various companies confirm an increase in performance and productivity of their employees, which outweighs the additional costs for an HCL concept. Also the general mood and the general well-being of the employees are said to have had a positive effect.<\/p>\n

       <\/p>\n

      \"HCL,<\/p>\n

       <\/p>\n

      HCL IN SCHOOLS<\/h3>\n

      Teachers and lecturers can select the right lighting scene for different requirements at the touch of a button.<\/p>\n