US Patent Application 18152012. Optical Systems with Multiple Light Engines for Foveation simplified abstract

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Optical Systems with Multiple Light Engines for Foveation

Organization Name

Apple Inc.


Inventor(s)

Vikrant Bhakta of Santa Clara CA (US)


Guolin Peng of Sunnyvale CA (US)


Hyungryul Choi of San Jose CA (US)


Scott M. Delapp of San Diego CA (US)


Optical Systems with Multiple Light Engines for Foveation - A simplified explanation of the abstract

  • This abstract for appeared for US patent application number 18152012 Titled 'Optical Systems with Multiple Light Engines for Foveation'

Simplified Explanation

This abstract describes an electronic device that can display images with varying levels of resolution. The device consists of two display modules, one that produces a low resolution portion of the image and another that produces a high resolution portion. The device also includes a reflective input coupling prism mounted to a waveguide, and a steering mirror that overlaps the prism. The high resolution portion of the image is received by the mirror through the waveguide and prism, and then reflected back into the waveguide. The mirror can be adjusted to change the position of the high resolution portion within the image, aligning it with the direction of the viewer's gaze. The low resolution portion of the image is reflected into the waveguide by a reflective surface of the prism.


Original Abstract Submitted

An electronic device may provide foveated images at an eye box. The device may have a first display module that produces a low resolution portion of the image and a second display module that produces a high resolution portion of the image. A reflective input coupling prism may be mounted to a waveguide. A steering mirror may overlap the prism. The mirror may receive the high resolution portion through the waveguide and the prism. The mirror may reflect the high resolution portion back into the waveguide and may be adjusted to shift a location of the high resolution portion within the image. For example, the steering mirror may adjust the position of the high resolution portion to align with the gaze direction at the eye box. A reflective surface of the prism may reflect the low resolution portion of the image into the waveguide.