05406395 is referenced by 313 patents and cites 3 patents.

An optical parking alignment system that includes at least one projector located on a vehicle for projecting a respective image forwardly of the vehicle, whereby alignment of the vehicle is indicated when each respective image is in focus on a screen disposed in front of the vehicle. The projector cam comprise a transparency and an imaging lens, or a hologram and a narrowband light source.

Title
Holographic parking assistance device
Application Number
8/143958
Publication Number
5406395
Application Date
November 1, 1993
Publication Date
April 11, 1995
Inventor
James A Arns
Saline
MI, US
John E Gunther
Torrance
CA, US
John E Wreede
Azusa
CA, US
David T Wilson
Torrance
CA, US
Agent
W K Denson Low
Leonard A Alkov
Assignee
Hughes Aircraft Company
CA, US
IPC
G02B 27/22
View Original Source