Magic Leap, Inc.

Ecole Polytechnique Federale De Lausanne

Volker Zagolla

Christophe Moser

Bradley Jay Sissom

Miller Harry Schuck, Iii

Heidi Leising Hall

Erik Heath Arend

Jacques-Edouard Moser

Carlos Alberto Macias Romero

A method for determining a residual retardance of an LCOS (Liquid Crystal on Silicon) panel includes transmitting a light beam to the LCOS panel at an angle of incidence and measuring an intensity of a reflected light beam. The method includes biasing the LCOS panel in a dark state and measuring a dark state intensity of the reflected light beam. The method also includes biasing the LCOS panel in a bright state, and measuring a bright state intensity of the reflected light beam. A residual retardance of the LCOS panel is determined based on a contrast ratio of the bright state intensity and the dark state intensity. The method can also include selecting a compensator for the LCOS panel based on the residual retardance.

Panel retardance measurement

A device for self-tracking a light source, including a focusing optical device configured to focus incoming light to a focal spot, an adaptive device configured to reflect the light of the focal spot and arranged to provide for a phase change at an area of the focal spot of the incoming light to generate a reflected light, and a light guide located between the focusing optical device and the adaptive device, the light guide configured to capture the reflected light of the adaptive device.

Self-tracking solar concentrator device

Growing community of inventors

Lausanne, Switzerland

Volker Zagolla