Title:
HEAD-UP DISPLAY DEVICE
Document Type and Number:
WIPO Patent Application WO/2017/051739
Kind Code:
A1
Abstract:
This head-up display device (1) comprises: a projector (20); an optical unit (30) having a drivable reflection mirror (32) and adjusting a virtual image display position by driving the reflection mirror; a stepping motor (40) for driving the reflection mirror;a gear decelerating mechanism (50) having a plurality of rotatable transmission gears (52 - 59); an elastic member (60) for generating a restorative force in a direction that causes the transmission gears to engage with each other; and a control unit (90) for controlling the rotational position of a motor in accordance with an adjustment command from a vehicle occupant. The control unit corrects the rotational position toward a direction which corrects an estimated display deviation when ambient temperature rises to a level greater than or equal to an estimated deformation temperature, where at least one transmission gear presumably subjected to creep deformation is defined as a designated gear, a temperature at which creep deformation is estimated to start is defined as an estimated deformation temperature (Te) and is taken as the ambient temperature (T) of the designated gear, and a deviation estimated to occur at a virtual image display position due to the creep deformation at the estimated deformation temperature is defined as the estimated display deviation (δDe).
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| WO/2016/191957 | WEARABLE ELECTRONIC DEVICE |
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Inventors:
SASAKI TATSUYA (JP)
Application Number:
PCT/JP2016/076787
Publication Date:
March 30, 2017
Filing Date:
September 12, 2016
Export Citation:
Assignee:
DENSO CORP (JP)
International Classes:
G02B27/01; B60K35/00
Domestic Patent References:
| WO2011132407A1 | 2011-10-27 |
Foreign References:
| JP2011131651A | 2011-07-07 | |||
| JPH0796771A | 1995-04-11 | |||
| JP2014203012A | 2014-10-27 |
Other References:
See also references of EP 3355095A4
Attorney, Agent or Firm:
JIN Shunji (JP)
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