  New type of lenses which are a slab of a left-handed material embedded into a
regular material is proposed. These two materials should have equal refractive
indices. Lenses with a focal length larger than the width of the slab can be
constructed. These lenses should be easier to make than the well known Veselago
lens, because the materials of the Veselago lens should obey an additional
matching condition. Lenses of new type have multiple foci and might be useful
for the 3D imaging.
