Improvements in optºmetrs in relation to the accommodation of the eye (Machine-translation by Google Translate, not legally binding)

摘要

Improvements in optometers in relation to the accommodation of the eye, characterized by the fact that on the path of the rays from each of the sights and projections of the relative lenses a semi-reflective sheet is inclined so as to reflect the it looks at the observer's eye and allows the observer to see the landscape or the fixed objects in front of it at the same time. (Machine-translation by Google Translate, not legally binding)