Author(s): Hideo Furuhashi, Javier Valle Mayorga, Yoshiyuki Uchida, Akihiro Kono


“A system is proposed that employs a spatial light modulator as a differentiation filter to measure the phase of an optical wavefront. The pattern, position and orientation of the filter can be controlled electrically. This system measures the phase derivative of a wavefront that passes through a transparent phase object. The 3D shape of the object can be calculated by integrating the phase derivative.”

Link to Publications Page

Publication: XIX IMEKO World Congress, (free download)

Issue/Year/DOI: XIX IMEKO World Congress, Fundamental and Applied Metrology, September 6−11, 2009