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11
Proposta da
Arper
,
Parentesit
è una collezione di pannelli
fonoassorbenti modulari con soluzioni per l’illuminazione comandabili
da remoto tramite app.
Design Lievore Altherr Molina
12
Geometrie
inattese per
LightSound
di The
Quadrifoglio Group
, sistema che combina
lampade Led e pannelli fonoassorbenti dalla forma triangolare che
possono essere alternati e composti liberamente, assecondando le
specifiche esigenze dello spazio
that permit flow management while guaranteeing maximum
luminous comfort, providing a soft down light and a controlled
dark light. For sound absorption, we thought about the classic
cardboard egg boxes once used to soundproof clubs. The
aesthetic reference comes from the sinusoidal section of the
lower surface of the sound-absorbing material, in polyester,
which contains the LEDs in the concave spaces, so that the
pattern does not influence the light flow.” Other companies, like
the Austrian firm Zumtobel, have taken a different path, starting
from the Ondaria lamp already widely used in offices, and
adapting its body to provide the same lighting performance
while making a contribution to acoustic comfort in rooms. The
people at Zumtobel explain: “The replacement of the PMMA
diffuser with one made of densely woven sound-absorbing
technical fabric, for homogeneous light emission, has made it
possible to achieve good acoustic performance. The different
available diameters allow users to obtain performance directly
proportional to the size of the installed fixture.”
Functioning and installation
The installation of sound-absorbing lighting systems starts with
careful assessment of the spaces and the activities that will
take place inside them. The best performance is provided by
suspension lamps that exploit the lower and upper surfaces
as areas of sound reduction, capturing sounds reflected from
floors, ceilings and walls.
A sound-absorbing lighting fixture can contribute to acoustic
correction in spaces, together with furnishings, curtains,
carpeting, etc. The acoustic design evaluates the overall
contribution of the elements present in spaces, estimating
– based on the functional purpose of the rooms – whether
it is necessary to insert more sound-absorbing material. For
example, in spaces where the activities require concentration,
reverb attenuation times between 0.5 and 0.8 seconds are
required.
“The lighting fixtures have precise installation specifications so
that they can function properly – Giacobone points out. – In
the case of suspension lamps, that are attached to the ceiling
and have to be parallel to the floor. They contribute to general
improvement of acoustic comfort, though in open-plan areas
or complicated layouts it may be necessary to install other
technical elements for optimal acoustic correction. Therefore
it is advisable to rely on an acoustics expert for a preliminary
study of the surfaces of the room. Flexibility for different uses
is a strong point of sound-absorbing lamps, since their refined
good looks make it possible to install them in different settings,
from the classic office to the meeting room, from shops to
restaurants to hotel halls.”
11
12
Sound-absorbing lighiting system
36
Officelayout 170
luglio-settembre 2017