16.2.2015
The Tbilisi Public Service Hall by Italian architects Massimiliano and Doriana Fuksas is situated in the centre of Tbilisi, Georgia, overlooking the Kura river.
The Lux series of high performance LED projectors from Martini was used to illuminate 11 ‘petals’ which form the roof structure, yet are structurally independent from the rest of the building.
Made up of 7 volumes containing offices, with each volume consisting of 4 floors located on different levels, the hall covers 28 000 sqm. These volumes are placed around a ”central public square,” which is the core of the project and where the front office services are located for the National Bank of Georgia, the Minister of Energy, and the Civil and National Registry.
Three of the eleven ‘petals’ cover the central space. The petals, varying in their geometry and dimension, reach almost 35 metres and are supported by a structure of tree shaped steel pillars visible, in addition to the petals, externally and internally from the building.
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19.1.2015
HOOP is the premium commercial downlight family from Martini Light, featuring the exclusive HD Retina LED module in addition to a comprehensive set of high performance modules in various colour temperatures, lumen packages, and CRI options.
OPTICAL ASSEMBLY
The HOOP series features a high performance aluminium optic made of planar circular facets framed in convex square sections to achieve uniform distribution and maximum visual comfort on worktops and circulation areas.
The reflector construction of high vacuum metalised aluminium ensures controlled luminance for use in VDU (visual display unit) workspaces, with the faceted optic achieving UGR <19, controlling the light distribution with optimal performance.
All HOOP models include as standard an extra-clear transparent methacrylate screen for optimal lumen maintenance and IP44 protection.
LIGHT SOURCES
25W / 40W / 50W
2950°K / 3000°K / 4000°K
CRI 80 / CRI 90 / CRI 97 / MCRI 97
1600lm / 2130lm / 2460lm / 3260lm / 3285lm / 3550lm / 4375lm / 5025lm delivered
25W and 50W LED arrays are available in neutral white (4000K) and warm white (3000K) in CRI >80 or Warm White (2950K) in CRI 97.
40W LED arrays are available in neutral white (4000K) and warm white (3000K) in CRI >80.
25W and 50W HD Retina LED modules are warm white (soft) and feature MCRI 97.
CONSTRUCTION
HOOP is constructed with a die-cast aluminium body, metalised aluminium optics, a tempered glass screen and steel springs. Finish is a satin white powdercoated trim.
CONTROL
A heat sensor positioned on top of the heat sink protects the LED module by switching off the luminaire if it should overheat. HOOP is delivered complete with fixed output control gear, with optional 1-10V or DALI control.
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19.1.2015
HD Retina is a high definition LED that saturates, in a perfectly balanced fashion, both warm and cold colours at the same time, making them pleasant on the human eye and giving them their natural colour. This is why this type of LED is well-suited to multiple areas of application and – in particular – has been designed for all general lighting situations in which different colour objects need to be illuminated all together in a single ambiance.
We normally say that it is sunlight which gives ideal visual comfort, but in actual fact this is not the case, because even bright sunlight tends to distort colour. The idea was therefore first to define a natural light that can be considered ideal on the eye and then to construct a source able to replicate that light in a closed environment. Research and experiments have shown that the light considered ideal in terms of visual comfort and giving a faithful representation of colour is that which our eye perceives “at dawn and at dusk”, when the source par excellence – the sun – illuminates them indirectly, with a colour temperature of between 3,500 K and 3,700 K.
Apart from the quality of light effectively perceived, the innovation is a different, but equally real, perspective with which to consider colour. Colour, in fact, is not a physical characteristic of objects, but rather the result of the visual perception of the light that illuminates them. It is the human eye that reconstructs colours on the basis of a source that illuminates them and recognises the different shades. On the other hand, when we look at an object and recall it to our memory, that object will always be associated with a single, unique colour, which we recognise as familiar and perceive as its “real”, or “ideal” colour, which is, in actual fact, that associated with the objects in an ideal context of the natural light of dawn and dusk.
This is, therefore, very briefly, the innovative heart achieved by HD Retina LED: technology able to make colours true to those the memory associates with familiar objects, with excellent colour saturation, making an unprecedented result possible with any artificial light source.
See the HD Retina LED video
