Hospital Lighting and Intensity Measurement Services in UAE
Hospital Lighting Requirements
• Hospitals have unique lighting requirements due to different departments and purposes.
• Lighting designers and engineers must consider the quality of light, which impacts human health and can aid patient recovery.
• Glare is crucial in hospitals, affecting patient comfort and causing eye strain.
• Recommended light levels range from 100 lux to 100000 lux in various areas.
• Glare rating limits are set at UGRL 19 and 22, and the color rendering index (CRI) should be greater than 80 or 90 in some areas.
Lighting Measurement in Hospitals
• Household illumination ranges from 200-500Lux, while part processing requires 300-750Lux.
• Quality inspection needs 1000Lux, and gem making requires at least 1500Lux.
• Lux is a unit of illumination equal to direct illumination on a surface one meter from a uniform point source of one candle intensity or equal to one lumen per square meter.
Light Meters
• Incident light meters measure all light falling onto a subject, while reflective light meters measure the light reflected by or bouncing off a subject.
• These devices are commonly used in life and production, agriculture, photography, cinema, and architectural landscape design.
Calibration
• Calibration is essential for maintaining stability and accuracy in related operations.
• The calibration process involves performing test points at various levels, such as 20, 50, 100, 200, 500, 1000, 2000, 5000, 10000, 15000, and 20000 Lux.
• The calibration system should be located in a dark room and covered by a black curtain.
Calibrating Light Meters
• Most light measurement systems include a meter that measures current or voltage and a light sensor consisting of a photodiode, filtration, and an input optic.
• Most light meter suppliers recommend annual calibration and allow an allowable tolerance for change during the recommended calibration cycle.ults.