Suspension projection device based on reflection modulation type metasurface
OwnerZhongwei Jin, Shengtao Meiinventors
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Abstract
The present disclosure relates to a suspension projection device based on a reflection modulation type metasurface. The suspension projection device comprises a metasurface, wherein a cubic column array is machined on one side of the metasurface, the cross section of a cubic column in the cubic column array is a square, the side length of the square ranges from 10 to 500 μm, and the height of the cubic column ranges from 50 to 800 μm; and incident light enters from one end of the cubic column, and exits from the other end of the cubic column after several total internal reflections within column. According to the suspension projection device, the cost of suspension projection is reduced.
Claims6
A suspension projection device based on a reflection modulation type metasurface, comprising a metasurface, wherein a cubic column array is machined on one side of the metasurface, the cross section of a cubic column in the cubic column array is a square, the side length of the square ranges from 10 to 500 μm, and the height of the cubic column ranges from 50 to 800 μm;
- and
- incident light enters from one end of the cubic column, is totally reflected in the cubic column, and exits from the other end of the cubic column.
Dependencies are inferred from the claim text.