Hadamard speckle contrast reduction.
The condition for a diffuser to produce the maximum speckle contrast reduction with the minimum number of distinct phase patterns is derived. A binary realization of this optimum diffuser is obtained by mapping the rows or columns of a Hadamard matrix to the phase patterns. The method is experimentally verified in the Grating Light Valve laser projection display.
Trisnadi
Jahja I
JI
Silicon Light Machines, 385 Moffett Park Drive, Sunnyvale, California 94089, USA. trisnadi@siliconlight.com