Title:
HOLOGRAPHIC CORNER MARKER AND ITS PHOTOGRAPHING METHOD
Document Type and Number:
Japanese Patent JP3431192
Kind Code:
B2
Abstract:
PURPOSE: To display a corner marker holographically correctly by mounting a corner marker at the windshield of a vehicle. and displaying a stereographic video at the corner position of the vehicle to the passenger of the vehicle by diffracting light from a light source installed at the vehicle.
CONSTITUTION: A windshield type holographic marker 1 is adhered on the front glass of the vehicle, and when reproducing illumination light from an illuminator 3 consisting of the light source of a semiconductor laser LED, etc., installed at the vehicle is made incident on the holographic marker 1, a corner pole 4 is displayed at the front corner position of the vehicle, etc., as a stereo- graphic virtual image. The holographic corner marker 1 is comprised of, for example. a hologram of sealed mode adhered on the front glass 2. Therefore, it results that the corner pole 4 can be seen as if it is floating at the front corner position of the vehicle and in space with a constant gap(for example, around 10cm) from the position at the front of a bonnet 5 on an assistant driver' s seat side.
Inventors:
Shunji Ishikawa
Yuu Nishimura
Yuu Nishimura
Application Number:
JP32184692A
Publication Date:
July 28, 2003
Filing Date:
December 01, 1992
Export Citation:
Assignee:
Dai Nippon Printing Co.,Ltd.
International Classes:
G02B5/32; G02B27/01; G02B27/02; G03H1/22; (IPC1-7): G03H1/22; G02B27/02
Domestic Patent References:
| JP3109925U |
Attorney, Agent or Firm:
Hiroshi Nirazawa (7 outside)