Patent ID: 7315414

Claim:
A microscope, comprising: a base, a support arm attached to and extending upwardly from the base, the support arm including a secondary stage height adjuster; a head attached to the support arm, the head including at least a first distal objective lens and a second distal objective lens, only one of which is in communication with an eyepiece at a given time; an eyepiece attached to the head and in optical communication with one of the distal objective lens at a given time; a stage releasably attached to the support arm between the head and the base, where: the stage is releasably attachable to the support arm at a plurality of locations between the head and the base providing a wide range of working distances between a lower surface of the head and an upper surface of a specimen being viewed with the microscope and can be attached in a first position such that when the first distal objective lens is in optical communication with the eyepiece, microscopic viewing is provided with magnification exceeding 45× and a working distance of 10 millimeters or less and can be attached in a second position such that when the second distal objective lens is in optical communication with the eyepiece, macroscopic viewing is provided with magnification less than 45× and a working distance exceeding 10 millimeters, and when the stage is attached to the support arm at a location, a working distance between the lower surface of the head and the upper surface of the specimen is further adjustable to an either greater or lesser working distance using the secondary stage height adjuster; and an illuminator positioned between the base and the stage.