DALLAS AREA PHOTOMETRIC SURVEYS AND LIGHT / LIGHTING LEVEL GLARE & PROPERTY BLEEDOVER TESTING
Light levels are also regulated as a minimum amount of ambient light is required for task lighting, surgical, patient and hospital environments, street and residential illumination, parking lots, parking garages, emergency lighting, stairwells, exit signs, etc. Also, specific levels of lighting are measured in lux (metric per square meter) or candlepower (also known as foot candles which is a standard per square foot) are recommended for different types of tasks which vary from quality inspection to operating rooms.
Many cities such as Plano, Grapevine, Frisco, Southlake, Flower Mound and McKinney have lighting / photometric illumination / glare ordinances which limit the amount of light which can emanate from the borders and perimeters of a property as well as the amount of lighting reflected from the ground. (glare) The amount allowed depends on how the neighborhood is zoned. (residential / light commercial, etc.) Parking lot lighting may cause excessive light to be transmitted through the windows of an adjacent bedroom window in which case light level testing is called for. In many cases the lighting survey data is compared to photometric maps prepared by a lighting or other relevant professional engineer.
Other aspects to consider are the total illumination output of the light (measured in foot candles or lumens) and distribution across the emitting surface, color temperature of light, (measured in degrees Kelvin) diffusivity, distance from the light fixture to the surface(s) to be illuminated, the color, texture and composition of the surface(s) and type of lighting. (incandescent, fluorescent, halogen, LED, etc.)
ScanTech has light meters which are suitable for measuring virtually all forms of lighting including LED with color and cosine correction built in for greater accuracy.
NEED A PHOTOMETRIC SURVEY QUOTE?
Please provide the following information:
Datalogging light levels over long spans of time to see lighting level trends or shorter intervals to determine flicker rates are also available services.
There are also appropriate levels of lighting for ATM (Automated Teller Machines) and banking security compliance, ADA lighting requirement surveys and is often a part of the property exchange / due diligence / renovation process.
Flicker rates can cause headaches and fatigue, impair productivity and be indicative of faulty lighting equipment which can propagate or indicate EMI (Electromagnetic Interference) from other sources present in your facility.
Excess radiated light at the wrong times of day (particularly the shorter wavelengths) can interfere with melatonin synthesis, circadian rhythms and create issues with insomnia, lack of restful REM sleep, unnecessary fatigue and a general lack of alertness. This is a genuine health hazard that broadly affects the quality of life from proper immune system function to increased risk of accidents.
ULTRAVIOLET RADIATION (UV) LIGHT INTENSITY SURVEYS & STUDIES
ScanTech can measure light levels that are normally invisible such as in the UV-A / UV-B (also known as UVA and UVB) spectrums which comprise wavelengths from 280 nm – 390 nm (nanometer) and the important part of the UVC / UV-C spectrum which is considered to be in the range of 100 nm – 280 nm and is often used for germicidal / sterilization processes such as the 254 nm band.
While useful for many forensic and industrial / medical processes, these wavelengths can cause damage to human skin, (skin cancer / melanoma) eyes from welding, paintings, artwork, historical museum pieces, fabrics and dyed products, rubber, polymers, etc.
If you require consultation for either health & safety, the preservation of materials (either modern or of historical significance such as artifacts) or need to gauge the exposures / effectiveness of an ultraviolet related application or impacted environment, then contact ScanTech.
ScanTech services and consults in the Dallas – Houston – Austin – Fort Worth and San Antonio metropolitan regions and beyond.
LIGHTING LEVEL / PHOTOMETRIC CALCULATORS