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Hospital LED lighting design scheme
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An overview of the
The buildings of the hospital include wards, clinics, medical technology and various medical service facilities. Therefore, hospital lighting design should not only meet the requirements of medical technology, give full play to the function of hospital medical equipment, effectively serve the medical service, but also consider to create a quiet and harmonious lighting environment for patients, beneficial to the treatment and rehabilitation of patients. Hospital lighting has high functionality, cleanliness and precision. Lighting design should understand the nature of its work and lighting requirements, using a variety of measures to meet the requirements of various medical departments.
The purpose of hospital lighting design
Color plays an important role in psychological therapy for patients. The light source and building decoration cleverly cooperate with the rational use of natural light, which will help to create an atmosphere and environment for patients to recover. And colour is more important to medical personnel, illuminant should be able to reflect the color of skin of the patient truly, also should satisfy the requirement of operation and treatment. Medical departments with different functions have different requirements for lighting. For departments such as examination room, instrument room, operating room and ICU(care center), the color rendering of light source must be considered, and the light source with high color rendering should be selected.
Hospitals in different areas have different requirements for the color and temperature of the light source. Hospitals in cold areas should adopt the warm white light source (low color temperature), which can bring a warm feeling to the environment. Hospitals in tropical regions should use a cold white (high color temperature) light source to bring a cool feeling to the environment. Therefore, the visual environment is not only physiological but also psychological requirements, must be judged before the correct lighting design.
Lighting source should choose high efficiency, energy saving, high light efficiency and good color rendering. Most hospital rooms and application places should choose thin tube diameter straight tube fluorescent lamp, with high quality electronic ballast or energy-saving inductance ballast.
Attached table (reference value of relative illumination of hospital building lighting) :
Excerpt from gb50034-2004, national architectural lighting design standard of the People's Republic of China
Table 5.2.6 standard values of hospital building lighting
Reference plane of room or place and its height illuminance standard value (Lx) UGR Ra
Treatment room 0.75 level 300 19 80
Laboratory 0.75 level 500 19 80
Operating room 0.75 level 750 19 90
Clinic 0.75 level 300 19 80
Waiting room, registration hall 0.75 level 200 22 80
Room floor 100 19 80
Nurse station 0.75 level 300 -- 80
Pharmacy 0.75 level 500 19 80
Icu 0.75 level 300 19 80
Lighting load rating
Load rating department name
Primary operating room, delivery room, blood bank, monitoring ward, CT diagnosis room, mri diagnosis room, purification room of blood ward, hemodialysis room, emergency room, evacuation lighting and evacuation signs, etc
Secondary general wards, outpatient clinic, X-ray radiology department, treatment room, baby room and other auxiliary rooms: nutrition department, supply room, anatomy room, mortuary and laundry room and other auxiliary rooms: transformer and distribution room, heat station, boiler room, centralized oxygen supply station, etc
Buildings beyond grade 3, grade 1 and grade 2
I. factors to be considered in hospital lighting design
The following factors must be considered:
· architectural style and space requirements.
· functional division and storey height of the space.
· decoration style and main materials.
· lighting forms and lighting parameters determined by the design.
· technical parameters of main decorative materials, etc.
Ii. Lighting design guidance for key functional areas
Outpatient service hall
Outpatient service hall is the center area with the most frequent personnel flow, and it is also connected with a variety of functional places such as the clinic, corridor, stairs, laboratory and irradiation section. How to design the lighting of the outpatient department to create a comfortable and efficient lighting environment will directly affect the service level and brand image of the hospital.
Generally speaking, atrium building form of hall lighting, gas discharge lamp should be chosen as the main, and deal with the smooth conversion of natural light and artificial lighting, prevent the atrium around the corridor illumination is too low, the light and shade gap is too large and cause visual discomfort.
The hall space installation illume lamps and lanterns with little natural lighting must consider the convenience of maintenance, appropriate USES small-sized cast light lamp to install on the side wall of hall corridor, facilitate adjust the Angle of accurate cast light lamp and maintenance, make lamplight downy even ground illuminates hall space. To facilitate registration, collection, consultation and other medical work.
The examination room is the main functional area in the outpatient and emergency building of the hospital, which requires very high requirements on spatial light (the lighting close to natural light is the best). Because the doctor in the diagnosis of patients, must see the patient's face, facial features and body parts of the abnormal small changes, and record the patient's medical records, prescribing prescriptions and tests. Therefore, the horizontal illumination and vertical illumination of the examination room should meet the requirements of the doctor's observation and writing, and the illumination should be above 300lx generally. Additional, want to notice to consider and union of natural lighting photograph in designing illume.
The treatment room should be cold color, color index should be equal to or higher than 80 light source, so as to concentrate and pay attention. Additional, considering the patient is likely to face up lie supine on sickbed, when the design should avoid to make lie supine the generation inside patient field of vision is direct dazzle, for this, appropriate chooses the reflex type that contains blindfold board fine and straight tube fluorescent lamp.
The operating room
The operating room is the place that reflects the highest level of medical technology of the hospital. In addition to considering the factors in lighting design, the requirements for the overall cleanliness of lamps and lanterns are very high. If the operation of local lighting must meet the requirements of shadowless and clean and sterile, we should choose claw type operating shadowless lamp. In terms of installation mode, clean sterile lamp is generally used to embed into the ceiling for installation, and an emergency light is required. It is also necessary to note that the operating room is not equipped with ultraviolet sterilizing lamp.
The general lighting of the ward should mainly consider the requirements of patients and medical staff to create a quiet and warm light environment. According to the provisions of "architectural lighting design standard" gb50034-2004, the illuminance standard in the ward is 100lx, the color temperature of the light source is less than 3000k, and the low-color temperature fluorescent lamp is generally selected. To the ward of common type, appropriate USES fluorescent lamp, or have condole top embedded lamps and lanterns, in order to prevent generation dazzle to cause discomfort to the patient in bed. To partial high-grade type sickroom, can use reflex type illume lamps and lanterns, although the effect is very good, but investment is big, run cost is high.
Waiting room is the area where patients stay for the longest time in the treatment process, and it is also one of the most important areas to reflect the service level of the hospital. Its comfort, convenience and other factors are directly related to the psychological changes and illness conditions of patients during the waiting room.
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