Light and Colour Science

Research Laboratory

Activities of the Laboratory

The research and development activity of the Laboratory can be categorized into two main areas: objective and physical measurement of light emitting diodes (LEDs) and lighting systems; psychophysical experiments in the fields of vision and colour.

Photometry and Colorimetry of Light Emitting Diodes

The Laboratory is well prepared to measure luminous intensity, total luminous flux, luminous intensity distribution, colour and colour rendering properties, ageing and electrical properties of LEDs, LED lamps and luminaires using LED sources. Investigations of such kind are conducted in the frame of several national and international projects. Two outstanding projects were the international cooperation where an LED automotive luminaire was developed and the award winning Hungarian national project in the field of road lighting.

Psychophysical Visual Investigations

In our Laboratory energy efficient indoor and outdoor lighting systems are developed. We designed optimized LED lamps for home lighting in an international cooperative project. In another international project have been working on museum lighting, using LEDs which are energy efficient, have optimal colour rendering and are safe for paintings. The modern equipment of the laboratory allows the conduction of eye tracking experiments either in real or displayed environments.

Fundamental Research Activities

In our Laboratory, fundamental research is emphasized. We do research on the better description of brightness perception; a new international standard was published based on our twilight vision psychophysical experiments which supports the development of a more energy efficient road lighting. A new colour harmony system was developed and we have been active in the development of a new version of colour matching functions to describe colour stimuli in the form of today's needs. The Laboratory is open to do investigations and experiments in it's research fields and to co-operate in research projects.