Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
HEAD-UP DISPLAY DEVICE
Document Type and Number:
WIPO Patent Application WO/2016/060119
Kind Code:
A1
Abstract:
The purpose of the present invention is to efficiently orient image light toward an observer. A display device (14) outputs projection light (100) for displaying an image. A transmission type screen (17) forms an image of the projection light (100) and diffuses the same as image light (200). A projection lens (15) enlarges projection light (100) and forms the image on the transmission type screen (17). A light distribution adjustment means (16) is disposed between the transmission type screen (17) and the projection lens (15) and adjusts the light distribution of the image light (200) output by the transmission type screen (17) for each region by refracting the projection light (100).

More Like This:
Inventors:
KASAHARA TSUYOSHI
MATSUURA KAZUYA
HATANO TAKAYUKI
Application Number:
JP2015/078934
Publication Date:
April 21, 2016
Filing Date:
October 13, 2015
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
NIPPON SEIKI CO LTD (JP)
International Classes:
G02B27/01; B60K35/00; G09G3/20; G09G3/34; G09G3/36
Foreign References:
JP2004126226A2004-04-22
JP2012093506A2012-05-17
JP2008151992A2008-07-03
Other References:
See also references of EP 3208648A4
Download PDF: