Call us 9:00am - 6:00pm

+86-757-81803709

Introduction to the working principle of operating lights

If you put a cylindrical tea cup on the table and light a candle next to it, the tea cup will cast a clear shadow. If two candles are lit next to the tea container, two overlapping shadows will be formed. The overlapping part of the two shadows has no light at all, and it is completely black. This is the umbra; the place where there is only a candle next to the umbra is half-bright and half-dark. If you light three or even four candles, the umbra will gradually shrink, and the penumbra will have many layers.

Objects can generate shadows composed of umbra and penumbra under electric light, which is also the reason. Electric lights are illuminated by a curved filament, not limited to one point. The light from this point is blocked by the object, and the light from other points is not necessarily blocked. Obviously, the larger the area of ​​the luminous object, the smaller the umbra. If we light a circle of candles around the tea caddy, the umbra disappears completely and the penumbra is too faint to see.

Scientists have made operating lights based on the above principles. It arranges the lamps with high luminous intensity into a circle on the lamp panel to form a large-area light source. In this way, light can be irradiated on the operating table from different angles, which not only ensures that the surgical field of view has sufficient brightness, but also does not produce obvious umbra, so the name of the operating lights.

Looking for best partner for your next construction works?