Title:
Head up display device
Document Type and Number:
Japanese Patent JP6098375
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a head-up display device displaying a display image having no speckle and luminance unevenness with a simple configuration.SOLUTION: A head-up display device 100 comprises: a laser light source unit 10 emitting a laser beam L; a scan unit 20 scanning the laser beam L emitted by the laser light source unit 10; and a first microlens array 40 including a plurality of microlenses which receive the laser beam L scanned by the scan unit 20. The microlens array 40 has a pitch in a horizontal direction larger than a beam diameter in a horizontal direction of the laser beam L entering the first microlens array 40, and has a pitch in a vertical direction equal to or smaller than a beam diameter in a vertical direction of the laser beam L entering the first microlens array 40.
Inventors:
Sekiya Shun
Application Number:
JP2013115916A
Publication Date:
March 22, 2017
Filing Date:
May 31, 2013
Export Citation:
Assignee:
Nippon Seiki Co., Ltd.
International Classes:
B60K35/00; G02B27/01; G02B26/10; G02B27/09; G02B27/18; G02B27/48; G09G3/02; G09G3/20
Domestic Patent References:
| JP201525977A | ||||
| JP201232721A | ||||
| JP2012208440A | ||||
| JP2007523369A | ||||
| JP2010145924A | ||||
| JP2009128659A | ||||
| JP201315738A | ||||
| JP2002131692A | ||||
| JP200028957A |
Foreign References:
| US20090161191 |
Attorney, Agent or Firm:
Kimura Mitsuru
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