An instrument stand for supporting ophthalmological instruments. The instrument stand may include a console housing configured to receive differently-configured electronics modules. In addition to, or instead of, the interchangeable electronics modules, the console housing may also be provided with a removable shelf that is resistant to unintentional removal during use. In addition to, or instead of, the interchangeable electronics modules and removable shelf, the instrument stand may also include a support arm having a cutout on different surfaces so that a panel carrying electrical inserts may be positioned in the cutout on one of the surfaces, while covering the unused cutout on the other surface with a blank panel.
CROSS-REFERENCE TO RELATED APPLICATIONS
This application claims the benefit of U.S. Provisional Application No. 60/516,549, filed Oct. 31, 2003, the disclosure of which is hereby incorporated by reference herein in its entirety.
A guide roller projects from the side surface of an optical system body. The optical system body is held to be elevatable within a predetermined range along an arcuate guide member. A weight balancing means incorporating a spring attaches to the lower corner on the side surface of the optical system body. A hook attaches to one end of the arcuate guide member. A pulley attaches to the upper end of the arcuate guide member. One end of a wire fixes to the hook. The spring of the gravity balancing means pulls the wire through the pulley.
