Invention Grant
- Patent Title: Head-up display with holographic optical element
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Application No.: US15792985Application Date: 2017-10-25
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Publication No.: US10578867B2Publication Date: 2020-03-03
- Inventor: Giang-Nam Nguyen , Patrick Nebout , Benoit Chauveau
- Applicant: Visteon Global Technologies, Inc.
- Applicant Address: US MI Van Buren Township
- Assignee: Visteon Global Technologies, Inc.
- Current Assignee: Visteon Global Technologies, Inc.
- Current Assignee Address: US MI Van Buren Township
- Agency: Quinn IP Law
- Main IPC: G02B27/01
- IPC: G02B27/01 ; G06K9/00 ; G03H1/22

Abstract:
A head-up display device for displaying a virtual image superimposed over a field of view to a viewer is provided. The head-up display device includes a picture generating unit having an illumination source, such as a laser, to generate a real image following a first light beam. A windshield of a vehicle engages the first light beam, either at an inclined angle or perpendicular, to reflect the first light beam away from the viewer as reflected images. A combiner disposed on the windshield including a holographic optical element steers the first light beam toward the viewer as a third light beam to present the virtual image within the field of view of the viewer. Mirrors may direct and magnify first light beam onto the combiner. A method for displaying a virtual image superimposed over a field of view to a viewer using a head-up display device is also provided.
Public/Granted literature
- US20190121130A1 HEAD-UP DISPLAY WITH HOLOGRAPHIC OPTICAL ELEMENT Public/Granted day:2019-04-25
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