A New Stroboscope

Abstract

It is designed handy, and has many advantages for practical use. The main characteristics are as follows :1) It can be manipulated by the examiner for himself.2) Examination of the larynx will be completed in the whole interval by the two discs each of which has 8 and 20 holes respectively.3) Rotation of the disc is regulated by a differential gear under control of a screw; adjustment of they rotation can be achieved easily and promptly. 4) Good optics and great intensity of light is ensured.