| http://www.w3.org/ns/prov#value | - A hologram optical system as set forth in claim 3, further satisfying the following relationships: -U+V+W=0 U=cos 2 α/(2l1) V={(l4 /(2l3 2)} cos 2 (γ+δ){(l3 -l4)/l3 2 } sin γ sin δ cos (γ+δ)/cos 2 δ W=-{(l3 -l4)/l3 2 } cos (γ+δ)/cos 2 δ {sin β sin δ-(l3 -l4)/(2l2) cos 2 β cos (γ+δ)} where l2 is a distance on an optical
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