Lyngby Crematorium – … finally finds a custom-made LED luminaire.
Lyngby Crematorium and Mortuary, inaugurated in 1967, was designed by the renowned architects Henrik Iversen and Harald Plum who won an architectural competition – ahead of the Finnish architect Alvar Aalto. The project comprises the crematorium and mortuary as well as a vast burial space intended to relieve the old church yard downtown.
- CUSTOM LED Upgrade
- CCT: 2300K dimmable (Bluetooth)
- CRI: Ra90+
- Installation: 2018
Lyngby Crematorium and Mortuary
The large chapel room, seating 300 persons, is built almost entirely in warm pine wood, creating a very serene and calm atmosphere. The lighting consists of 11 large suspended luminaires (1160*1160mm) of a quite elaborate design and of a very sturdy construction. Each luminaire consists of 81 (9*9) frosted 15W light bulbs with a bayonet socket mounted in 81 squares in a wooden frame to complement the all wooden walls and ceiling. Each luminaire consumes 1,2kW. The all steel construction of the luminaires (2mm galvanized steel reflector and socketbase) requires that both suspension and mounting is of a heavy-duty design.
The frosted light bulbs have since gone out of production, and other bulb types have been tested, recently including LED-type light sources. However, the requirement to dim the light and the need to fit the traditional bayonet socket left a few options open. The luminaries thus appeared with a variety of light sources of diverse colour temperature and intensity. The frequent maintenance and change of light bulbs was also a costly element in operating the building.
For a number of years, the technicians have been working to find suitable solutions for an upgrade of the lighting. the consideration was to remove the original luminaires and instead acquire modern design luminaries for this large chapel room. However, costs seemed to make this option less workable. There were plans to expand the utilisation of the beautiful location and add good acoustic properties to include concerts and cultural events and to open the doors for rehearsal sessions for local music ensembles. This made finding a permanent solution to the lighting more and more critical.
Following an LED iBond presentation at the local Town Hall, one of the architects from the Municipal Buildings and Maintenance Team challenged LED iBond to work on a solution to the lighting at the large chapel room. Requirements included CCT 2300K, CRI Ra90+, and zone-based dimming and 200-300 lux on the floor for various events.
LED iBond solution
The LED iBond solution utilised the existing wooden frame mounted on to the LED iBond 6mm ACP sandwich construction, and thus enabled discarding all the 2mm galvanized steel components. A custom vacuum formed diffuser was added to give the illusion of the original frosted light bulb with a full light distribution. The diffuser obviously also minimised the glare from the LEDs. The diffuser elements were sealed against the ACP to avoid insects, which over time would decrease the lumen output of the lamp.
The power source units chosen were set up to a Casambi app (bluetooth dimming controls) and the zones and scenes were set up to the customers wishes with wall mounted manual kinetic push buttons in both ends of the chapel room.