Fraunhofer Institute for Building Physics
Artificial window for a detailed analysis of daylight conditions
Energy Efficiency and Indoor Climate
| Measurement | Weather-independent investigation of daylight conditions in interior spaces, precisely controllable interaction between artificial and natural light for studies on user behavior and performance (e.g. at computer workstations), focused studies of light management systems such as daylight-responsive light control, specific tests of sun and glare protection systems under controlled conditions, studies on novel approaches such as artificial windows |
| Measurement objects | Test group studies, computer workstations, light management systems, sun and glare protection systems, novel approaches such as artificial windows |
Technical data
| Light field | 108 spotlights on 3 × 4 m, mobile in front of façade |
| Lamp power | 30 kW in total, fully dimmable, electronically and by mechanical shutter |
| Direct light | Altitude angle: 0° to 60° Façade azimuth: –60° to +60° |
| Diffuse light | Luminance up to 10 000 cd/m² |
| Color temperature | 2500 K to 9300 K |
Special features
| View out | Interchangeable scene foil |
| Light scenes | Computer-controlled, for example daily and annual cycles, alternating between direct and diffuse light. Variable luminance distributions on the façade |
| Connected laboratory | Highly flexible artificial lighting system with daylight-dependent light management. Integration into laboratory concept which makes integral indoor climate, lighting and acoustic investigations possible |
Back
- to the search
- to the working group Ligthing Technology and Passive Solar Systems' (ibp.fraunhofer.de)
- to the department Energy Efficiency and Indoor Climate (ibp.fraunhofer.de)