CASE STUDY
STADKAMER April 2018
1
EXPLORE, EXPERIENCE AND PLAY
CONTROL FOR PEOPLE
CONTRAST: By controlling a scheme that reflects the mood or activity of a building and centering the scheme around human interaction and emotion, we are able to share the joy, excitement or emotion that people experience. This is how we can consider architectural lighting as a human centred solution. When being used as a functional space (library or study area) then the lighting can be set to a static colour, providing an even wash of light, however as the evening draws in and the level of activity and movement increases.
THE LIGHT SHAPES THE CHARACTER AND IDENTITY OF STADKAMER
LIVE, LAUGH, LOVE
CONTEXT: Stadkamer is the newly refurbished development located in the Dutch town of Zwolle. Taking the former city hall office building to create a new cultural and arts centre providing a venue that gives access to advice, education, development, literature and language to the local community.
The centre is not only an educational centre, Stadkamer has been developed as a social hub. Their varied events calendar means the building is used for all kinds of poetry recitals to music events which take place durning the day and into the evening throughout the year.
Guess what? So does the lighting. The lighting can be controlled, providing an incredible dynamic display where the light dances into the night providing a focal point to the space. By introducing defined scenes of light at commissioning that can be easily controlled and switched between, gives the building a completely different look from day to night, day by day, week by week, event to event.
LIFE IS REALLY A SERIES OF CONTRAST
CONTRAST
The beauty of the lighting at Stadkamer is created because of contrast. Not only of the faรงade, but how it sits within its surroundings. How the foreground and background have been considered. Together they emphasise the stark contrast between the glazed and refurbished concrete surfaces around it and the surrounding surfaces begin to take on and reflect the light provided from the building.
There is also a balance between the perimeter pubic realm lighting and the architectural lighting, so that the back lit faรงade helps to provide an stunning ambient glow with no harsh reflections from the luminaires within the glass.
LET THE NIGHT DANCE IN THE LIGHT
COLOUR
COLOUR: The materials, texture, finishes and colour take centre stage on this project. By day, dramatic shadows and reflections are cast across the space as the building basks in the sunlight. Rather like a structural sundial it provides a sense of time to visitors. Things change dramatically at night as the building comes alive and dances with light.
2
An integrated, coloured backlit effect working with the frosted glass faรงade creates an exciting jaw dropping display in the evening. A single colour or full dynamic lit effect can be selected depending on the use of the space. For instance; an inviting, calm static white maybe suitable for a poetry recital, whereas a youth club event may need the lighting to be something a little bit more upbeat dynamic and coloured.
3
IT’S ALL IN THE DETAIL THE DETAIL
COORDINATED DESIGN The execution of this successful backlit façade is all about the team, working together trialling different materials, techniques and finishes to get the best lit effect possible.
BLADE LED
FINISHES AND MATERIALS The architectural detail is made of 3 elements, the concrete, the glass and the luminaire, but it is the finite detail that makes it work – the concrete vertical inside wall has a matt white paint finish to it – for maximum inter-reflection of the light. The glass is frosted so that the lit effect is diffused and there is a gentle fade to the bottom. The linear optic of BLADE ensures a tight, narrow and long beam to graze down the void. (Love it when a plan comes together).
WHAT MAKES THIS PROJECT DIFFERENT?
7.7M
PAINTED MATT WHITE
The perimeter façade is approx. 8m tall, and the glazed section that is backlit measures 7.7m in height. The key to the success of this installation is the multidisciplinary design approach with the balance of the materials, the finishes and the lighting.
0.2M
FROSTED GLASS FACADE
INSIDE CONCRETE WALL
The design team had to think outside the box on this project – They installed a mirrored finish to the base of the void, which KICKS the light back up, framing the building from top to bottom, making it look like there is another row of luminaires at the base up lighting when there isn’t! . Without the mirror effect, the lighting would have had a gentle fade down the façade. Not what they wanted. (how clever is that?).
MIRROR
MOCK-UP AND TRAILS Playing with the light against the different materials enabled the team to have a better understanding of the performance of the light, the different finishes that might be required, the spacing that were needed and how the luminaire needed to be focussed so it was the lit effect that was seen and appreciated not the fitting. 4
FOCUSSING AND POSITIONING The luminaire is pointed away from the glass, focussed down and onto a matt white concrete wall. The light is reflected hitting the diffused glass, hiding the light source from view. The luminaires are installed end to end to ensure there are no shadow gaps maintaining a continuous dynamic lit effect. 5
DIMENSIONAL DRAWINGS (MM) BLADE LRI 80mm
124mm
BLADE IS A FAMILY OF LINEAR LUMINAIRES THAT CHANGE THE WAY WE SEE BUILDINGS AND STRUCTURES AT NIGHT. BLADE GRAZES THEIR LIGHT ACROSS THE SURFACE SO WE CAN SEE TEXTURE OR COMPLETELY CHANGE IT WITH A SPECTRUM OF COLOUR. BY DAY YOU WONT KNOW IT’S THERE, AT NIGHT BLADE COMES ALIVE!
80mm
82mm
BLADE HIGHLIGHTS “
50mm 66mm
“
1266/966/666mm 1236/936/636mm
BLADE Si
POLAR DIAGRAM
COMPACT DESIGN Incredibly slim profile. BLADE LRi = H: 124mm x W: 80mm. BLADE Si = H: 103mm x W: 54mm. BLADE Sx = H: 58mm x W: 54mm.
6
84mm
3000K Narrow
3000K Narrow
Anodised versions in BLADE LRi -20º to 50ºC ambient temperature.
CLEAN BEAM DESIGN The clean beam design eliminates corona, colours mixing on the wall, and scalloping. Power board assembly with 1 linear mixing chamber and diffuser.
ACCESSORIES A choice of 4 brackets for all types of application needs. Additional accessories include cowl and louvre for additional glare control.
1240/940/640mm
BLADE Sx
POLAR DIAGRAM
CONE DIAGRAM
54mm
SINGLE POINT LIGHT SOURCE Using 1 linear optic which runs consistently the length of the product, you get a homogenous lit effect al. This is achieved with a tightly packed mid power board assembly with 1 linear mixing chamber and diffuser.
OPTICS
58mm
S = Surface mount. LR = Linear recessed. x = External driver. i = Integral diver.
THIS IS HOW WE DID IT IN STADKAMER
39mm
BLADE Si BLADE Sx BLADE LRi
103mm
84mm
AVAILABLE IN 3 VARIANTS
Suitable for outdoor applications with IP67 protection. Choice of colour finishes Silver, Black.
103mm
54mm
54mm
BLADE is a compact linear luminaire which is designed to create amazing scenes on architectural façades, bridges and monuments. Inspired by the transition from day to night and the amazing natural graze the sun creates across the landscape
CONE DIAGRAM
3000K Narrow
Multiple choice of optics from narrow to wide flood.
3000K Narrow
1240/940/640mm
7
THIS IS HOW WE DO IT
HOW CAN LIGHT BE APPLIED TO AN ARCHITECTURAL FACADE?
8
Modern building techniques and materials used can often open the doors to our creativity, by illuminating these textures of the façade with a surface of light in singe colour or colour change can give a very different night time appearance.
With carefully positioned and focussed luminaires, the lit effect can be striking from both the short and long view of the façade. This technique can be used for both interior and exterior luminaires depending upon the installation.
Ambient levels of light around a building may be very high. A different approach may be adopted to create the focal point - lighting the windows or backlighting the glazed sections creates a contrast in brightness.
More often than not the decision to backlit the façade will be made early in the project by the architect and end user. Making the specification key to the success of the structure night-time appearance.
To ensure everything is just as it should be, a thorough approach to the development of the design is required with close collaboration with the architect and the end user to ensure the desire the lit effect is achieved. Whilst a mockup can mean additional cost is does mean all parties can sign off the desired lit effect and there are no nasty surprises when you arrive on site. (It’s all in the planning)
To achieve a consistent wash of light when backlighting the façade the designer should consider the height of façade, as two optic sizes may be needed. The design should also consider the lit effect from the very top of the façade to the base, or the other way depending upon the mounting position. The array of luminaires should enable a constant wash along the length and depth of the façade. Achieved by equally space luminaires with a sufficient offset to ensure no hotspots.
If the façade is of a greater depth it may need an additional row of luminaires. If this is the case it is likely these fittings will need a narrower beam to reach the top or bottom third of a facade for a continuous lit effect. Careful planning, coordination and modelling will be required to ensure the uniformity is maintained, it may be that the control and dimming of the luminaires will help with the layout and uniformity.
Should the façade design require backlit windows, then the specifier should consider how they can be converted into light boxes and whether the light should be single colour or colour change, and how this mightbe controlled. A light box usually will have an opal finish to the front with all matt white surfaces inside to assist in the inter reflection of the light and create the homogenous lit effect required.
9
SCHEMATICS 20 BLADE SUPPLIED - RGB
MAINS
x10 BLADE
DMX
x10 BLADE POWER
DMX MAINS BLADE
BLADE NEW DMX REPEATER AFTER 32 FITTINGS
10
11
KEEP IN TOUCH www.acdclighting.com
12