Abstract
An instrument is described which measures angles accurately and rapidly under the microscope. A mathematical model displays the principles involved. It is shown that accuracy is achieved with an ``optical lever arm'' which moves when the eyepiece rotates, the arm's being comparable to a 25-cm mechanical arm attached to the outside of the eyepiece. Rapid measurements are possible by the reading of relative positions of the ``optical arm'' on an illuminated scale which appears superimposed over the microscope field of view. The design and limitations of a practical, working instrument are discussed.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
