公开(公告)号：US10274175B1

公开(公告)日：2019-04-30

申请号：US15862047

申请日：2018-01-04

申请人： Electronic Theatre Controls, Inc.

发明人： Michael Wood ,  Thomas Peterson ,  Scott Ingham ,  Maxwell Schweiner ,  Matthew Stoner

IPC分类号： F21V21/15 ,  F21V21/30 ,  F21V23/02 ,  G01D5/14 ,  F21W131/406

摘要： Moving light fixture and method for controlling the position of a moving light fixture. In one example, the moving light fixture includes a housing, light sources, a stepper motor, a magnetic position encoder, and an electronic controller. The stepper motor rotates the housing. The magnetic position encoder is configured to transmit a position signal indicating an angular position of the housing. The electronic controller determines the angular position of the housing based on the position signal. The electronic controller also determines a full step of the stepper motor based on the angular position of the housing, and a micro step of the stepper motor. The electronic controller also determines a current position of the moving light fixture based on the full step and the micro step. The electronic controller drives the stepper motor to move the moving light fixture from the current position to a target position.