Abstract: In one general aspect, an optical system for a head mounted display system is provided. The optical system includes an image source and an optical component. The optical component includes a reflective surface configured to receive an image from the image source, the optical component having a specified curvature that reflects and presents the image to a user of the head mounted display.

Abstract: A device, method and graphical user interface to facilitate handwritten interaction. The device includes a core hardware module including a stylus digitizer and electronic paper display and a stylus as handwritten input for the stylus digitizer. The device also includes a handwriting interface to enable drawing, writing and handwritten interactions thereby providing a user with a completely new handwriting experience and digital interaction. The handwriting interface is one of a monochrome interface and color interface. Further, the device includes a slate configured with the monochrome interface and includes a toolbar with a plurality of tools and brushes. Furthermore, the device includes a plurality of interface elements to enable handwritten interaction to achieve a unique look of the graphical user interface and an input area configured in the monochrome interface to allow a user to edit and redraw a design of an interface element or current graphical design of the interface.

Abstract: In one general aspect, an optical system for a head mounted display system is provided. The optical system includes an image source and an optical component. The optical component includes a reflective surface configured to receive an image from the image source, the optical component having a specified curvature that reflects and presents the image to a user of the head mounted display.