The principle of shadowless lamp in operating room is to use the principle of diffuse reflection of light to become a large area light source. ? In this way, the light can shine on the operating table from different angles, which not only ensures the sufficient brightness of the surgical field of vision, but also does not produce black shadows.

Shadows are produced by light. Light is used to illuminate shadows. If there are many lights shining from different angles, shadows can be eliminated. (Diffuse reflection of light and multiple light sources are used for elimination)

You can change the nature of light, from strong to weak, from hard to soft (using the principle of diffuse reflection of light) to dilute the shadow. Commonly used methods are:

1) Use soft light TV spotlight;

2) tubular scattering lamp;

3) TV spotlight adjusts the focal length and becomes defocused;

4) Add soft paper in front of the spotlight to make it become soft scattered light;

5) Use new multi-point light source lamps and lanterns.

There are many methods, such as changing the orientation of the light source and avoiding shadows; Increase auxiliary light, reduce shadows, etc.