公开(公告)号：US20090231850A1

公开(公告)日：2009-09-17

申请号：US12107826

申请日：2008-04-23

Applicant: Niels Joergen RASMUSSEN ,  Torben Kaas RASMUSSEN

Inventor： Niels Joergen RASMUSSEN ,  Torben Kaas RASMUSSEN

IPC: F21V33/00

CPC classification number: F21V21/15 ,  F21W2131/406 ,  G01D5/04 ,  G01D5/145

Abstract: A lighting fixture having at least one internal processor and at least one fixed element to which controllable moving elements are rotatably fastened, one moving element having at least one light source that generates a beam of light. Information concerning positions of moving components in a lighting fixture is automatically achieved. Correct position indication at start up is obtained without moving the components to their end stops for finding set points for step motors by the provision of at least one absolute encoding device, which encoding device indicates the angular movement of a first input axel in relation to the encoding device, which absolute encoding device has a gearbox with a second internal axel, which first input axle drives a first toothed timing wheel, intermeshing with a second toothed timing wheel that rotates the second axel with a angular velocity different from the angular velocity of the first input axle.

Abstract translation: 一种具有至少一个内部处理器和至少一个固定元件的照明器具，可控制的移动元件被可旋转地固定到其上，一个移动元件具有产生光束的至少一个光源。 自动实现关于照明灯具中的移动部件的位置的信息。 通过提供至少一个绝对编码装置，可以获得启动时正确的位置指示，而不用将组件移动到其终点，以通过提供至少一个绝对编码装置来找到步进电动机的设定点，该编码装置指示第一输入轴相对于 编码装置，其绝对编码装置具有带有第二内部轴的齿轮箱，该第一输入轴驱动第一齿形正时轮，与第二齿形定时轮相啮合，第二齿定时轮以不同于第二齿轮的角速度的角速度旋转第二轴 第一输入轴。