LIGHTING HOSPITAL RETROFIT
A rethink of the ward environment was at the centre of plans to renovate the hospital
IMI NATURAL AND ELECTRIC LIGHTING COMPONENTS
● Access to daylight, sunlight and views (recommended);
and give you ultra-effi cient lighting.’ Cundall and architect Austin Smith Lord
formed a partnership called Integrated Medical Interiors (IMI), which became a consortium that now comprises Osram, Fagerhult, Intechno/Jung, Wandsworth, Leisure Technique (off-site construction) and Ecophon (acoustic specialist). The winning concept they came up with
was the IMI Pod, a prefabricated modular unit which offers storage as well as lighting
and can be confi gured in a variety of ways, ranging from single to six-bed options. The integral lighting addresses the full range of needs of both patients and medical staff: reading light, medical examination light, resting and ambient scenes, as well as a biodynamic setting which allows the patient to be awakened more naturally, with both a gradual rise in light level and colour temperature changes according to the time of day.
Rotherham hospital Anatomy of the lighting changes
Indirect biodynamic light/ bedhead unit (Fagerhult): 2 x 54W T5 fi tting with prismatic louvre lighting the back leaning wall and ceiling. Colour temperature (lamps are 2700K/6500K) shifts according to time of day. Examination light (Fagerhult): Two 1 X 49W T5 (3000K) asymmetric fi ttings located on either side of the bed, at the edges of the recessed part of the pod, and angled towards
52 CIBSE Journal February 2012
the bed centre. The white- painted micro-lamella louvre camoufl ages the fi tting when not switched on. Measuring 1797mm long, the fi tting has a light opening of 1500mm, with the remaining 243mm covered with a plate housing an LED reading light. Shielded to prevent glare, the 700lm fi tting has a fi xed angle to optimise illumination for reading. Night light (Fagerhult): Two LED cove lights (350lm)
recessed into the MDF board and positioned 500mm above the fl oor on each side of the bed. Colour temperature will be warm and fi ttings are dimmed to a suitable level. Visitor light (Fagerhult/ Osram): Two LED narrow- beam (12 degrees) fi ttings (700lm) are located either side of the bed above the patient table, recessed into a cone for design and glare protection. All fi ttings are Dali-controlled.
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● Biodynamic lighting to create ambience;
● Dedicated reading lights; ● Dedicated visitor lights; ● Dedicated medical light;
● Dedicated night-time fl oor wash light;
● Daylight-linked lighting controls; and
● Simple icon-based lighting handsets.
Cundall Light4
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