Optotune Ag

Optotune Consumer Ag

Wavelight Ag

Michael Bueeler

Manuel Aschwanden

David Niederer

Roman Patscheider

Christopher Laning

Daniel Borer

Christof Donitzky

Michael Mrochen

Christian Wuellner

Chris Laning

The invention relates to an optical device, comprising: a lens having an adjustable focal length. According to the invention, a light source which is configured to emit light that is affected by said lens and impinges on at least a first photosensitive element, which is designed to generate a first output signal corresponding to the intensity of light impinging on it, wherein the first photosensitive element is configured to measure only a portion of the intensity distribution of said emitted light, and wherein the light source, the lens and the first photosensitive element are configured such that a change of the focal length of said lens changes the intensity distribution of the emitted light that impinges on the first photosensitive element, so that each focal length of the lens is associated to a specific first output signal generated by the first photosensitive element.

Optical device, particularly for tuning the focal length of a lens of the device by means of optical feedback

The present invention relates to an optical device (), comprising: a container () forming a fluidic lens, the container () comprising a transparent and elastically expandable membrane (), a transparent optical element () facing the membrane (), and a wall member (), wherein the optical element () and the membrane () are connected to the wall member, and wherein said container encloses a volume (V) that is filled with a fluid (F), a lens shaping part () that is in contact with said membrane () for defining a curvature adjustable area () of the membrane (), which area () faces said optical element (), and a circumferential lens barrel () extending in an axial direction, which lens barrel () surrounds an opening () in which at least one rigid lens () is arranged that is held by the lens barrel (), and a voice coil motor () that is designed to move the lens shaping part () along an axial direction (z) with respect to said container (), so as to adjust a curvature of said area () and therewith a focal length of the fluidic lens, wherein the voice coil motor () comprises at least one coil () arranged on a movable part () and a plurality of magnetic structures () arranged on a motor holder (), wherein said movable part () is movably mounted to the motor holder () via a spring structure () so that it can be moved along said axial direction (z), and wherein the lens shaping part () is mounted to said movable part ().

Optical device, particularly camera, particularly comprising autofocus and optical image stabilization

The illumination source has a LED light source () generating a first divergent light field (). The light from the LED light source () is processed by a first optical element (), in particular a first lens element, to generate a second divergent light field (). The first divergent light field () is processed by a second optical element () having a variable lens variable focus in order to generate a third light field () whose divergence can be varied.

Illumination source with variable divergence

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Vogelsang, Switzerland

Michael Bueeler