Patent ID: 6520646
Filing Date: 2003-02-18
Classification: G03B,H04N

Abstract:
A method for manufacturing a projection system projecting a distortion corrected image, the projection system including optical projection components and an electronic imaging component, the method comprising the steps of:a. determining the acceptable data loss, DLACC for the projection system, b. determining the optical projection parameters of the projection system, including projection angle and throw ratio; c. calculating distortion components for a not-electronically corrected image under the optical projection parameters; d. determining the shape of the not-electronically corrected image when projected; e. calculating a warp map for the correction of the distortion components; f. applying the warp map to the electronic imaging component; g. measuring the electronic data loss, DLE, in the electronic imaging component; h. if DLE>DLACC, then provide an optical correction mechanism that reduces the distortion components; and i. repeat steps c through h until DLE&lE;DLACC.