US 2019/0376844 A1Published application

Method for calibrating a rotatable and pivotable piece of technical stage equipment

Assigneezactrack GmbH

InventorWerner PETRICEK

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Abstract

Method for calibrating a spotlight (1) which is rotatable about a pan axis (7) by entering pan values and pivotable about a tilt axis (8) by entering tilt values to absolute angle coordinates, wherein the spotlight creates an illuminated, preferably elliptical, area (5) on the ground (3) by means of a directed cone of light (4), wherein a light sensor (2) is placed on the ground (3), wherein the illuminated area (5) is moved across the ground (3) by rotating and pivoting the spotlight (1), wherein the light sensor (2) detects the edges of the illuminated area (5) and wherein a mapping assignment of the pan values and/or tilt values of the spotlight (1) to the angular coordinates of the spotlight (1) is determined by rotating and/or pivoting the spotlight (1) and by detecting the illuminated area (5) anew.

Claims17

Dependent claims

A method for calibrating a technical stage device which is rotatable about a pan axis (7) by entering pan values and pivotable about a tilt axis (8) by entering tilt values and which is arranged above a ground (3), wherein

a. an element is arranged on the ground (3) adapted to interact with the technical stage device in a certain range of the pan and tilt values,
b. the technical stage device is rotated and pivoted by entering tilt and pan values until a pan and tilt value is reached at which the element interacts with the technical stage device,
c. wherein
i. the technical stage device is either configured as a spotlight (1) and creates an illuminated area (5) on a ground (3), and the interacting element is configured as a light sensor (2) which detects the edges of the illuminated area (5), or
ii. the technical stage device is configured as a camera which captures an observation area on a ground (3) and the interacting element is configured as a light source, optical marker or the like so that the observation area is detected by detecting the element,
characterized in that
d. a mapping assignment of the pan values and/or tilt values to the angular coordinates of the technical stage device is determined by repeatedly rotating and/or pivoting the technical stage device and detecting the interaction of the technical stage device with the element.

4 more elements

Dependencies are inferred from the claim text.

Facts

Application: 16/488,949Filed 26 Feb 2018
Priority: AT A 50154/201727 Feb 2017
Published: 12 Dec 2019
Term ends: Not estimatedThe source records don’t support an estimate.

Classification14 codes

H04N 23/56
Cameras or camera modules comprising electronic image sensors; Control thereof: provided with illuminating means
F21V 14/02
Controlling the distribution of the light emitted by adjustment of elements: by movement of light sources
G01J 1/4257
Using electric radiation detectors: applied to monitoring the characteristics of a beam, e.g. laser beam, headlamp beam
H04N 23/695
Control of cameras or camera modules: control of camera direction for changing a field of view, e.g. pan, tilt or based on tracking of objects

Family

US 10,564,034 B2Related patent
US 2019/0376844 A1This patent

From the US filing history. Foreign family members aren’t listed.

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