US 12,386,175 B1
Augmenting reality with light field display and waveguide display
Urho Konttori, Helsinki (FI); and Mikko Strandborg, Hangonkylä (FI)
Assigned to Distance Technologies Oy, Helsinki (FI)
Filed by Distance Technologies Oy, Helsinki (FI)
Filed on Jun. 5, 2024, as Appl. No. 18/734,263.
Int. Cl. G02B 27/01 (2006.01); A61B 3/10 (2006.01); G02B 27/00 (2006.01)
CPC G02B 27/0093 (2013.01) [G02B 2027/014 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A system comprising:
tracking means;
at least one light field display unit;
at least one optical combiner arranged on an optical path of the at least one light field display unit and on an optical path of a real-world light field of a real-world environment;
at least one waveguide display unit, separate from the at least one light field display unit, the at least one waveguide display unit comprising a display and a waveguide, the waveguide being arranged on the optical path of the at least one light field display unit; and
at least one processor configured to:
utilise the tracking means to determine a relative location of a head or eyes of at least one user with respect to the at least one optical combiner, and a relative location of the head or the eyes of the at least one user with respect to the waveguide;
generate an input to be employed at the at least one light field display unit for producing a first part of a synthetic light field, based on the relative location of the head or the eyes with respect to the at least one optical combiner;
generate an image to be displayed via the display of the at least one waveguide display unit for guiding along a propagation path of the waveguide and exiting the waveguide as a second part of the synthetic light field, based on the relative location of the head or the eyes with respect to the waveguide; and
display the image via said display of the at least one waveguide display unit to produce the second part of the synthetic light field exiting the waveguide, whilst employing the input at the at least one light field display unit, to produce the first part of the synthetic light field by the at least one light field display unit,
wherein the at least one optical combiner is employed to reflect the first part of the synthetic light field emanating from the at least one light field display unit towards the eyes of the at least one user, whilst optically combining said first part of the synthetic light field with the real-world light field,
further wherein said first part of the synthetic light field and the real-world light field are optically combined with the second part of the synthetic light field exiting the waveguide.