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Research over time has documented the impact of light on human beings, and we now know that we rely on the right light at the right times throughout the day to ensure a healthy circadian rhythm that promotes well-being, health, and improved performance. In this optimal rhythm, we need both bright white light to energize us, but we also require biological darkness to ensure restful sleep.

Humans generally spend 90% of their time indoors, and often we work during the dark hours. Therefore, we depend on artificial light sources to be able to see, but with artificial light also comes great flexibility in how we use light throughout the day, which increases the risk of using it incorrectly. Incorrect lighting can have significant consequences on our health and well-being.

Particularly, individuals with poor health and those who work at night need light that supports their circadian rhythm and enables them to carry out their work. That is why since 2006, we have been focused on developing and designing lighting specifically for this group.

In collaboration with surgeons, doctors, and researchers in circadian rhythm, sleep, and psychiatric disorders, we have been working to offer the optimal lighting solution for ergonomic work lighting and to support the human circadian rhythm. It has been crucial for us that our solutions have an effect and impact, which is why we have also documented it through clinical studies and in practice.

Both our lighting concepts, Chroma Zenit and Chroma Zona, have been validated through extensive research and PhD studies at AUH and Rigshospitalet. The results include reduced fatigue, depression, and anxiety, as well as improved circadian rhythm and well-being. These results have also been confirmed in practice through numerous user surveys in the healthcare sector. With this focus, we ensure that the lighting has a direct positive effect on people's health. Learn more about the research here.

On this page, you can delve into the concepts of circadian lighting and ergonomic lighting, as well as learn more about our concepts and solutions and the specific effects of evidence-based ergonomic lighting and circadian lighting.

Circadian Lighting


Circadian lighting restores the beneficial effects of natural light. It automatically adjusts throughout the day, creating a gentle sunrise and powerful daylight to establish a healthy circadian rhythm, boost energy, and promote better sleep.

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Ergonomic Lighting


Ergonomic lighting is a zone-divided, colored, and white light for operating rooms and examination rooms. It ensures, among other things, improved screen display, reduced fatigue, and fewer errors.

Human Centric Lighting


Human Centric Lighting, also known as HCL, is the concept that lighting should revolve around humans and support their circadian rhythm. It is essential for everyone to have the right light at the right time in order to maintain a healthy and balanced daily routine. The impact of poor lighting or light pollution on our well-being and health cannot be underestimated.

- Daylight affects our circadian rhythm in various ways, such as our sleep, wakefulness, body temperature, and well-being – areas where traditional electric lights typically fall short. When our circadian rhythm is disrupted, we react accordingly.



Torben Skov HansenDirector of Innovation


At Chromaviso, we are driven by our understanding of the importance of light for human beings and how through lighting design, we can create optimal conditions for patients, residents, and staff. We work closely with clinical professionals on a daily basis and specialize in comprehending and translating their complex needs into simple and practical lighting solutions that greatly satisfy users.

Nursing HomeCircadian lighting enhances the demanding care environment and combines considerations for both residents and staff.
HospitalsHospitals consist of several different specialties that require individual support. We offer various solutions based on the specialty.
PsychiatryThe lighting is tailored to meet the individual needs of patients, enhancing their stimulation and supporting their treatment.
Research & Science


Our lighting solutions have been documented in numerous research projects. Additionally, we systematically work with user surveys and practical evidence from over 130 hospitals, psychiatric departments, and nursing homes.