Optical system and method for transmitting a source image
AssigneeCarl Zeiss AG
InventorsWolfgang Singer, Bernd Kleemann, Artur Degen
Life of this patent
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Abstract
An optical system for transmitting a source image is provided. Light having a field angle spectrum emanates from the source image. The optical system includes an optical waveguide arrangement, in which light can propagate by total internal reflection. The optical system also includes a diffractive optical input coupling arrangement for coupling the light emanating from the source image into the optical waveguide arrangement. The optical system further includes a diffractive optical output coupling arrangement for coupling the light that has propagated in the optical waveguide arrangement out from the optical waveguide arrangement. The disclosure also provides related methods.
Claims20
An optical system configured to transmit a source image from which light having a field angle spectrum emanates, the optical system comprising:
- an optical waveguide arrangement in which the light can propagate by total internal reflection;
- an input coupling arrangement configured to couple the light emanating from the source image into the optical waveguide arrangement;
- and
- an output coupling arrangement configured to couple the light that has propagated in the optical waveguide arrangement out from the optical waveguide arrangement,
- wherein:
- the input coupling arrangement comprises:
- a first input coupling element configured to couple light from a first subfield of the source image into the optical waveguide arrangement;
- and
- a second input coupling element configured to couple light from a second subfield of the source image into the optical waveguide arrangement;
- the first subfield has field angles from a first field angle range of the field angle spectrum;
- the second subfield has field angles from a second field angle range of the field angle spectrum;
- the second subfield is at least partly different from the first subfield;
- the second field angle range is at least partly different from the first field angle range;
- the transmitted first and second subfields are at least partly superimposed on each other after coupling out from the optical waveguide arrangement;
- and
- the optical waveguide arrangement is curved.
Dependencies are inferred from the claim text.