Display, in particular heads-up display, particularly for a motor vehicle

Patent metadata

Field	Value
Publication number	US-2016259165-A1
Application number	US-201414898528-A
Country	US
Kind code	A1
Filing date	Jun 27, 2014
Priority date	Jun 28, 2013
Publication date	Sep 8, 2016
Grant date	—

Abstract

The invention relates to a display ( 1 ), in particular a heads-up display, for displaying a virtual image in a vehicle driver's field of view, said display ( 1 ) comprising a semi-reflective blade ( 5 ) for displaying said virtual image and one or more optical elements ( 3, 7 ) for projecting an image toward said semi-reflective blade ( 5 ), said display ( 1 ) being configured to allow a movement of said optical element or elements ( 3, 7 ) so as to allow said semi-reflective blade ( 5 ) to be retracted when the display ( 1 ) is stopped, along a path passing through a location of said optical element or elements ( 3, 7 ) when the display ( 1 ) is operating.

First claim

1 . A heads-up display, for displaying a virtual image in a vehicle driver's field of view, said display comprising:
a semi-reflective blade for displaying said virtual image; and one or more optical elements for projecting an image toward said semi-reflective blade, said display being configured to allow a movement of said optical element or elements to allow said semi-reflective blade to be retracted when the display is stopped, along a path passing through a location of said optical element or elements when the display is operating.

2 . The display as claimed in claim 1 , configured to protect said semi-reflective blade after retraction.

3 . The display as claimed in claim 2 , further comprising a cover, cap or casing protecting said semi-reflective blade from external impacts and/or from dust after retraction.

4 . The display as claimed in claim 3 , wherein said casing is advantageously an insulating enclosure configured to protect said semi-reflective blade from climatic variations comprising condensation, after retraction.

5 . The display as claimed in claim 3 , in which said enclosure or casing houses said optical element or elements.

6 . The display as claimed in claim 1 , wherein said semi-reflective blade and said optical element or at least one of said optical elements are mounted on one or more mechanical movement devices to allow their movement, when the display is stopped, for said retraction of the semi-reflective blade from a position of use to a retracted position of the semi-reflective blade and/or vice versa.

7 . The display as claimed in claim 6 , wherein said mechanical device or devices are configured to allow a combined movement of said semi-reflective blade and said optical element or at least one of said optical elements.

8 . The display as claimed in claim 6 , wherein said mechanical device or devices are capable of moving, successively and/or simultaneously, said semi-reflective blade and said optical element or at least one of said optical elements.

9 . The display as claimed in claim 6 , wherein said optical elements comprise an image generation device, and when required, optical components for the transmission of said images.

10 . The display as claimed in claim 9 , wherein said image generation device and/or at least one of said optical components for image transmission are movable from the position of use of the display to a position which frees space to allow said retraction of the semi-reflective blade and/or vice versa.

11 . The display as claimed in claim 9 , wherein said optical component or components for image transmission are fixed.

12 . The display as claimed in claim 9 , wherein said image generation device is movable in rotation about an axis d passing through said image generation device.

13 . The display as claimed in claim 12 , wherein said semi-reflective blade is pivoted for rotary movement about a remote axis, parallel to the axis of rotation d of said image generation device.

14 . The display as claimed in claim 9 , wherein the mechanical device for moving the semi-reflective blade is positioned laterally with respect to the image generation device.

15 . The display as claimed in claim 6 , further comprising a control unit for controlling the movement of said mechanical device or devices.

Assignees

• Valeo Comfort & Driving Assistance

Inventors

• Dalmayrac Stephane
• Dutre Stephane

Classifications

• G03B21/30

  adapted to collapse or fold, e.g. for portability · CPC title

• G02B2027/0159

  with mechanical means other than scaning means for positioning the whole image · CPC title

• G02B2027/0154

  with movable elements · CPC title

• G02B27/0149 Primary

  characterised by mechanical features (G02B27/0176 takes precedence) · CPC title

• G03B21/145

  Housing details, e.g. position adjustments thereof · CPC title