Surgical lighting
Photorealistic
PBR/GAMEREADY
4K Texture
Low-Poly
A surgical light – also referred to as an operating light or surgical lighthead – is a medical device intended to assist medical personnel during a surgical procedure by illuminating a local area or cavity of the patient. A combination of several surgical lights is often referred to as a “surgical light system”.
Central illuminance (Ec)Illuminance (measured in lux) at 1m distance from the light emitting surface in the light field centre.Light field centrePoint in the light field (lighted area) where illuminance reaches maximum lux intensity. It is the reference point for most measurements.Depth of illuminationThe distance between the points of 20% illumination intensity above and below the center point. From the point of maximum illumination, which is the center of the light field 1 meter from the light-emitting surface, the photometer is moved toward the light until the light intensity measured falls to 20% of the maximum value. The distance between the center and this point is defined as L1. The similarly measured distance in the direction away from the light is L2. The depth of illumination without needing to refocus is the sum of the two distances L1 and L2. In the second edition of the IEC standard, published in 2009, the threshold value was revised from 20% to 60%.[6]Shadow dilutionThe light's ability to minimize the effect of obstructions.Light field diameter (D10)Diameter of light field around the light field centre, ending where the illuminance reaches 10% of Ec. The value reported is the average of four different cross sections through the light field centre.D50Diameter of light field around the light field centre, ending where the illuminance reaches 50% of Ec. The value reported is the average of four different cross sections through the light field centre
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