Circular display device with a projective light source

Details Circular display device with a projective light source Circular display device with a projective light source

2006-10-17

2006-10-17

Healy, Brian M. (Department: 2883)

Optical waveguides

Noncyclindrical or nonplanar shaped waveguide

C385S043000, C385S901000, C385S031000, C385S033000

Reexamination Certificate

active

07123811

ABSTRACT:
A circular display includes a columnar waveguide plate and an image projection device. The upper width of the cross-section of the columnar waveguide plate is less than the bottom width of the cross-section of the columnar waveguide plate. The outer surface of the columnar waveguide plate is utilized for displaying an image, and the image projection device is used for projecting the image to the bottom of the columnar waveguide plate.

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