Exedra is a semicircular architectural recess with semi-dome crown. Originally referred to stoa rooms with curved stone benches. Hellenistic exedras often supported bronze sculptures in sacred places. Roman exedra became popular in 1st century AD Domus Aurea
First carbon filament bulbs demonstrated by Edison in 1879. Tungsten filament invented by Just and Hanaman in 1904. Neutral gas addition improved bulb lifespan and brightness. Robert Kyp patented Balafire flickering bulb in 1960s
Light meter measures the amount of light in various applications. Exposure meters display correct shutter speed and f-number for photography. Luxmeters measure light in luxes
International peer-reviewed journal on daylighting in buildings. Started in 2014, publishes bi-annually with 70-day publication time. Open access with no publication fees
First recessed dynamic wall washer in Uni portfolio. Offers multiple LED colors and beam angles for subtle or dramatic effects. Compatible with Uni DMX controls and third-party standard DMX controls. IP67-rated for outdoor use
BEGA has been producing luminaires for over 75 years. Company is leading worldwide in architectural lighting. Products have become generic terms for countless luminaires