Goniophotometer
AssigneePatent-Treuhand-Gesellschaft fur elektrische Gluehlampen mbH
InventorsUlrich Binder, Georg Sauter, Walter Steudtner, Gerhard Trebbin, Norbert Wagner
Life of this patent
Estimating the term…
Abstract
A hemispherical goniophotometer is disclosed, in which two pivoting arms are articulated on a revolving rotating arm and are each fitted with a measurement head. The geometry of the arrangement is chosen such that the measurement heads can move along the envelope surface of a hemisphere during rotating of the rotating arm through 360° and pivoting of the pivoting arms through 180°.
Claims18
A goniophotometer for measurement of photometric, spectroradiometric and/or colorimetric variables of the optic radiation from a light/radiation source which is held at a measurement position by a measurement object holder, the goniometer having an appliance unit with a rotating arm mounted to a main drive, the rotating arm having a rotation axis and two limbs which are angled with respect to one another, each limb having a pivoting arm which is pivotably mounted to an end section of the limb, each pivoting arm having a pivoting axis and a measurement head which points at the light/radiation source, the pivoting axes of the pivoting arms and the rotation axis of the rotating arm intersecting at the measurement position of the light/radiation source, and in which case the pivoting arms are pivoted by means of a pivoting drive between a pivoted-in pole position, in which the measurement head of the pivoting arm is located on the rotation axis, and a pivoted-out equatorial position, in which the measurement head of the pivoting arm is guided around the light/radiation source along an orbital path with a maximum diameter.
Dependencies are inferred from the claim text.