Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filedfiledCritical
Application grantedgrantedCritical
Publication of DE82523CpublicationCriticalpatent/DE82523C/de
G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
G01J4/00—Measuring polarisation of light
G01J4/02—Polarimeters of separated-field type; Polarimeters of half-shadow type
Gewindelehre, insbesondere zum Messen von Innengewinden, mit zwei senkrecht zur Gewindeachse gegeneinander und in geringem Masse auch axial gegeneinander verschieblichen Gewinde-Messbacken