Robert Boschgmbh

Sprintus Gmbh

Johannes Hofmann

Gael Pilard

Reinhold Fiess

Andreas Petersen

Hendrik Specht

Sebastian Reiss

Simon Pick

Holger Lepold

Christian Nitschke

Andrea Marchini

Maximilian Busch

Thomas Kuenstle

Joerg Carls

Eva Lea Elisabeth Empting

Tadiyos Alemayehu

Lepold Holger

A device and a method for manufacturing holographic optical elements. The device includes at least two partial light beams and one interference light beam, one deformable mirror in each case per partial light beam, a control unit, which is configured to actuate the deformable mirrors to adapt a wavefront of the partial light beam, and a holographic film. The deformable mirrors are situated so as to each reflect precisely one partial light beam and to direct the reflected partial light beam on the holographic film, and the interference light beam being directed on the holographic film to interfere with the reflected partial light beams so as to simultaneously generate at least two holographic optical elements.

Device and method for manufacturing holographic optical elements

An optical system for a virtual retinal scan display. The optical system includes an image source which supplies image data, an image processing device for the image data, a projector unit having a light source modulatable in time for generating a light beam, and an actuable refraction device for the light beam for the scanning projection of the image content, a deflection unit onto which the image content is able to be projected and which is designed to guide the projected image content onto an eye of a user, and an adaptive optical element for modifying a beam divergence, which is situated in the optical path between the light source and the deflection unit. The adaptive optical element is able to be actuated so that the beam divergence of the light beam is variable as a function of the angle of incidence of the light beam on the deflection unit.

Optical system for a virtual retinal scan display, and method for projecting image content onto a retina

Growing community of inventors

Tuebingen, Germany

Johannes Hofmann