| 摘要 |
A holographic viewing apparatus for allowing an operator of a bus to view a portion of a blind spot region located in front of the bus and below the windshield of the bus. The holographic viewing apparatus includes a volume transmission holographic grating attached to a lower edge of the windshield of the bus for transmissively diffracting light from a portion of the blind spot region such that an operator of the bus sees an image of the portion of the blind spot region superimposed on a scene that is directly and non-diffractingly observed through the holographic transmission grating.
|
