Back to results
US 2013/0170220 A1Published application
Illumination Source with Variable Divergence
AssigneeOptotume AG
InventorsMichael Bueeler, Manuel Aschwanden
Life of this patent
Estimating the term…
Abstract
The illumination source has a LED light source (2) generating a first divergent light field (6). The light from the LED light source (2) is processed by a first optical element (10), in particular a first lens element, to generate a second divergent light field (19). The first divergent light field (19) is processed by a second optical element (20) having a variable lens variable focus in order to generate a third light field (35) whose divergence can be varied.
Claims18
An illumination source comprising
- an LED light source generating a first divergent light field with a first divergence,
- a first optical element arranged and structured to receive said first divergent light field and to generate a second divergent light field with a second divergence, wherein said second divergence is smaller than said first divergence, and
- a second optical element comprising a variable lens having a lens interface with variable curvature, wherein said variable lens is arranged and structured to receive said second divergent light field and to generate a third light field with variable divergence.
An illumination source comprising
- an LED light source generating a first divergent light field with a first divergence,
- a first optical element comprising light scattering structures and the first optical element being arranged and structured to receive said first divergent light field, to scatter the first divergent light field, and to generate a second divergent light field with a second divergence, wherein said second divergence is smaller than said first divergence, and
- a second optical element comprising a variable lens having a lens interface with variable curvature, wherein said variable lens is arranged and structured to receive said second divergent light field and to generate a third light field with variable divergence.
Dependencies are inferred from the claim text.