05760931 is referenced by 346 patents and cites 25 patents.

A heads-up display unit provided with a display device serving as display image forming means which displays a display image. A hologram serves as a reflecting means, and reflects the display light emitted from the display device, causing reflection of the display image on the interior surface of a vehicle's windshield. A display image is formed outside the windshield towards the front of the vehicle. A concave mirror having a different focal length in different directions is recorded in the hologram serving as a reflecting means so as to offset distortion of the display image caused by curvatures of the windshield. This construction makes it possible to cause the windshield to display a display image free from distortion.

Title
Image display unit
Application Number
8/290753
Publication Number
5760931
Application Date
October 13, 1994
Publication Date
June 2, 1998
Inventor
Masahiro Higuchi
Obu
JP
Hiroshi Ando
Nagoya
JP
Takekazu Terui
Tokai
JP
Shunichi Ogawa
Toyota
JP
Teiyuu Kimura
Obu
JP
Satoshi Koike
Kariya
JP
Yoshiaki Fukatsu
Nagoya
JP
Naoyuki Kawazoe
Yokkaichi
JP
Yasuhiro Mizutani
Inabe-gun
JP
Toshiki Saburi
Inazawa
JP
Agent
Cushman Darby & Cushman IP Group of Pillsbury Madison & Sutro
Assignee
Nippondenso
JP
IPC
H04N 5/74
G09G 5/00
G03H 1/00
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