constitutes a water lens Photoluminescent Tumbled Gravel

Demonstration spherical water condenser lens effect 

By observing the lens to photoluminescent technology‍ deflect the incident light conditions, the understanding: 

1. Parallel with the axis of light refracted through the lens converging focus on the spindle; 

2. Focus light through the lens on a point light source emits parallel refraction; 

Glass beaker, fluorescent yellow dye, parallel light, Guangping. 

Experimental setup shown Photoluminescent Aluminum Sheet‍ in Figure 2.8-4, the spherical glass beaker filled with water, then add a small amount of fluorescent yellow dye to help display the optical path, thus constitutes a water lens. Allow the parallel light emitted parallel light through the lens in water, in a way to put a mask at the light beam, moving the mask at the optical axis direction so that the converging point of the light beam photoluminescent pigment suppliers‍ happens to fall on the light screen.