Patent ID: 8514488

Claim:
A tube for a surgical microscope comprising: a base part; an intermediate part pivotable on said base part about a first rotational axis; an ocular part pivotable on said intermediate part about a second rotational axis; said base part, said intermediate part and said ocular part conjointly defining a left imaging beam path and a right imaging beam path passing therethrough; said base part having a connecting piece defining an opening through which said imaging beam paths enter, wherein said imaging beam paths are parallel at said opening; a tube lens system for transferring said imaging beam paths entering in parallel through said opening in said connecting piece into an intermediate image plane; a first displaceable mirror movable about said first rotational axis; a second displaceable mirror movable about said second rotational axis; said first displaceable mirror directing said imaging beam paths entering via said connecting piece to said second displaceable mirror; said tube lens system being a telesystem including a first lens unit having positive refractive power and a second lens unit having negative refractive power; and, said first displaceable mirror and said second displaceable mirror being disposed in said imaging beam paths between said first lens unit and said second lens unit.