Optical waveguide arrangement

A method for an optical waveguide arrangement, comprising:

• transmitting, by at least one light source, light signals to one optical waveguide of an optical waveguide arrangement;
• receiving, by said one optical waveguide, the light signals from the at least one light source and conveying the light signals to a human eye, to generate a waveguide-based display;
• and
• generating, by said one optical waveguide, a first image at a first focal plane of the optical waveguide arrangement when at least some of the received light signals have a first set of distinct spectral characteristics and a second image at a second focal plane of the optical waveguide arrangement when at least some of the received light signals have a second set of distinct spectral characteristics, at least one spectral characteristic of the set of first spectral characteristics being different compared to the set of second spectral characteristics, wherein a perceived focal plane of an image produced by the optical waveguide arrangement is shifted from the first focal plane to the second focal plane when the spectral characteristics of the transmitted light signals are shifted from the first set of distinct spectral characteristics to the second set of distinct spectral characteristics, and a full color image jumps between the first focal plane and the second focal plane depending on whether light signals having the first set of distinct spectral characteristics or light signals having the second set of distinct spectral characteristics are transmitted and conveyed to a user's eye via said one optical waveguide.

An apparatus comprising at least one processing core, at least one memory including computer program code, the at least one memory and the computer program code being configured to, with the at least one processing core, cause the apparatus at least to:

• transmit light signals to one optical waveguide of an optical waveguide arrangement, to generate a waveguide-based display and a first image at a first focal plane of the optical waveguide arrangement when at least some of the transmitted light signals have a first set of distinct spectral characteristics and a second image at a second focal plane of the optical waveguide arrangement when at least some of the transmitted light signals have a second set of distinct spectral characteristics, at least one spectral characteristic of the set of first spectral characteristics being different compared to the set of second spectral characteristics, wherein a perceived focal plane of an image produced by the optical waveguide arrangement is shifted from the first focal plane to the second focal plane when the spectral characteristics of the transmitted light signals are shifted from the first set of distinct spectral characteristics to the second set of distinct spectral characteristics, and a full colour image jumps between the first focal plane and the second focal plane depending on whether light signals having the first set of distinct spectral characteristics or light signals having the second set of distinct spectral characteristics are transmitted and conveyed to a user's eye via said one optical waveguide.

A computer program comprising instructions which, when the program is executed by an apparatus, cause the apparatus at least to:

• transmit light signals to one optical waveguide of an optical waveguide arrangement, to generate a waveguide-based display and a first image at a first focal plane of the optical waveguide arrangement when at least some of the transmitted light signals have a first set of distinct spectral characteristics and a second image at a second focal plane of the optical waveguide arrangement when at least some of the transmitted light signals have a second set of distinct spectral characteristics, at least one spectral characteristic of the set of first spectral characteristics being different compared to the set of second spectral characteristics, wherein a perceived focal plane of an image produced by the optical waveguide arrangement is shifted from the first focal plane to the second focal plane when the spectral characteristics of the transmitted light signals are shifted from the first set of distinct spectral characteristics to the second set of distinct spectral characteristics, and a full colour image jumps between the first focal plane and the second focal plane depending on whether light signals having the first set of distinct spectral characteristics or light signals having the second set of distinct spectral characteristics are transmitted and conveyed to a user's eye via said one optical waveguide.