Control means for optical instrumentation

Details Control means for optical instrumentation Control means for optical instrumentation

G - Physics

02

B

88/99, 88/121.5

G02B 13/08 (2006.01) A61B 3/036 (2006.01) A61B 3/103 (2006.01) G02B 15/00 (2006.01)

Patent

CA 1153919

AO-3663 BWP:cm CONTROL MEANS FOR OPTICAL INSTRUMENTATION ABSTRACT OF THE DISCLOSURE In an ophthalmic refractor system for determining cylinder power and direction of axis for visual correction, cylinder axis orientation based upon corrective cylinder power in the retractor viewing path is automatically determined and introduced into the system.

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