Optical system for a led signal and wayside led signal
AssigneeSiemens Industry, Inc.
InventorsAxel Beier, Volker Türck
Life of this patent
Estimating the term…
Abstract
An optical system (100) for a light emitting diode (LED) signal includes a plurality of light emitting diodes (LEDs) (12, 14), a plurality of optical lenses (20, 40, 60, 80) for diverging and collimating light generated by the plurality of LEDs (12, 14), wherein the plurality of LEDs (12, 14) and the plurality of optical lenses (20, 40, 60, 80) are sequentially arranged in an axial direction, and wherein the plurality of optical lenses (20, 40, 60, 80) are configured such that by altering an axial position of one of the optical lenses (20, 40, 60, 80) from a first defined axial position to a second defined axial position, a final angular light distribution of the optical system (100) is variable.
Claims21
1-20. (canceled)
An optical system for a light emitting diode (LED) signal comprising:
- a plurality of light emitting diodes (LEDs),
- a plurality of optical lenses for diverging and collimating light generated by the plurality of LEDs,
- wherein the plurality of LEDs and the plurality of optical lenses are sequentially arranged in an axial direction, and
- wherein the plurality of optical lenses are configured such that by altering an axial position of one of the optical lenses from a first defined axial position to a second defined axial position, a final angular light distribution of the optical system is variable.
A wayside LED signal comprising:
- a plurality of light emitting diodes (LEDs);
- a plurality of optical lenses for diverging and collimating light generated by the plurality of LEDs,
- wherein the plurality of LEDs and the plurality of optical lenses are sequentially arranged in an axial direction, and
- wherein the plurality of optical lenses are configured such that by altering an axial position of one of the optical lenses from a first defined axial position to a second defined axial position, a final angular light distribution of the optical system is variable.
Dependencies are inferred from the claim text.