DISPLAY APPARATUS

摘要

A display apparatus includes an optical image projection system, first optical propagation system, and second optical propagation system. The optical image projection system projects image light to infinity. The first optical propagation system propagates the image light projected from the optical image projection system in the x-direction. The first optical propagation system deflects a portion of the image light. The second optical propagation system includes a second input deflector that deflects the image light deflected by the first output deflector. The second optical propagation system propagates the image light deflected by the second input deflector in the y-direction and deflects a portion of the image light. The light beam width in the y-direction of the image light emitted from the optical image projection system and the length in the y-direction of the first light guide are greater than the length in the y-direction of the second input deflector.

主权项

1. A display apparatus comprising:
an optical image projection system configured to project image light corresponding to an image to infinity; a plate-shaped first optical propagation system comprising two opposing surfaces and configured to propagate the image light projected from the optical image projection system in an x-direction perpendicular to a direction of an optical axis of the optical image projection system while repeatedly reflecting the image light between the two opposing surfaces and configured to deflect a portion of the image light in a direction substantially perpendicular to one surface of the two opposing surfaces; and a plate-shaped second optical propagation system comprising two opposing surfaces and comprising a second input deflector configured to deflect the image light deflected by the first optical propagation system, the second optical propagation system being configured to propagate the image light deflected by the second input deflector in a y-direction perpendicular to both the direction of the optical axis of the optical image projection system and the x-direction while repeatedly reflecting the image light between the two opposing surfaces and configured to deflect a portion of the image light in a direction substantially perpendicular to one surface of the two opposing surfaces; wherein a light beam width in the y-direction of the image light emitted from the optical image projection system and a length in the y-direction of the first optical propagation system are greater than a length in the y-direction of the second input deflector.