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US 10,525,992 B2Granted
Light signal
AssigneeSiemens Mobility GmbH
InventorsRolf Eckl, Kay Koester, Zeljko Marincic
Life of this patent
Estimating the term…
Abstract
A light signal, in particular for rail-bound traffic routes, includes a control device which controls a light source, and an optical system for visualizing a signal term. In order to more precisely adjust brightness boundaries, light distribution and phantom light intensity, a transmission-controllable smart-glass element is provided in an aperture segment of the light flow.
Claims9
A light signal, comprising:
- a light source producing a light flow;
- a control device controlling said light source;
- an optical system for visualizing a signal term;
- and
- a transmission-controllable smart-glass element provided in an aperture segment of the light flow, said smart-glass element disposed in said aperture segment including a plurality of separate, transmission-adjustable, smart-glass discs.
2 more elements
Dependencies are inferred from the claim text.