Device and method for the laser projection of high-resolution images onto the retina of the eye, superimposed with the image content of the field of vision
OwnerKlaus Dietrichinventor
Life of this patent
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Abstract
The optical system as described achieves retinal display of video images at a viewing angle of approx. 60° by a monochromatic or color mixture of laser beams. Retinal display is either direct or by beaming a scattering screen, whereby the display can be superimposed with an image of a 60° field of view. In video image display a convergent beam of light is focussed on the retina with the aid of a partly transparent planoconcave mirror. The system features an extremely high resolution limited only by the eyesight of the viewer and the diffraction of the display light beam as dictated merely by the divergence and cross-section of the light beam.
Claims13
Optical assembly and method for retinal projection or electronic image data (e.g. video images) on a viewing eye with lens (10), characterized in that all light beams incident on the retina (11) in a pixel pass convergent through the entrance aperture (1) of the optical system, are reflected by a beam splitter (8), intersect at a focal point before being reflected by a fully or partly reflecting concave mirror (9), pass through the beam splitter (8) in ultimately reaching the exit aperture (2) of the system, the system comprising the beam splitter (8) and the concave mirror (9) imaging the entrance aperture (1) on the exit aperture (2) so that the light beams of all pixels on the retina (11) of the viewing eye need to pass through the entrance aperture (1) and the exit aperture (2), the lens (10) and pupil of the viewing eye being located at a spacing S (S larger than or equal to zero) in front of the exit aperture (2).
Dependencies are inferred from the claim text.