| http://www.w3.org/ns/prov#value | - y, and by for personal differencesare obtained from the above equations (4) and (5), and thereby the coordinates on a focusing plate are calculated.Here, as possible means for avoiding the defect of .theta.y being interior in the accuracy to .theta.x, there is a method wherein an IRED 13e provided at a position along the y-axis direction across the z-axis with respect to the IREDs 13a and13b, is u
|
