Invention Grant
- Patent Title: Virtual image generation device and head-up display
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Application No.: US14772240Application Date: 2013-03-27
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Publication No.: US09891433B2Publication Date: 2018-02-13
- Inventor: Takuma Yanagisawa
- Applicant: PIONEER CORPORATION
- Applicant Address: JP Kanagawa
- Assignee: PIONEER CORPORATION
- Current Assignee: PIONEER CORPORATION
- Current Assignee Address: JP Kanagawa
- Agency: Young & Thompson
- International Application: PCT/JP2013/059125 WO 20130327
- International Announcement: WO2014/155588 WO 20141002
- Main IPC: G02B27/14
- IPC: G02B27/14 ; G02B27/01 ; B60K35/00 ; G02B5/08

Abstract:
The virtual image generation device which visualizes images formed by an image forming unit as virtual images includes: a first optical element and a second optical element arranged opposite to each other along a travelling direction of an image light corresponding to the images. The first optical element and the second optical element have a characteristic of reflecting the light having a wavelength corresponding to the image light in accordance with an incident angle of the light and transmitting the light having the wavelength other than the wavelength corresponding to the image light, and give a predetermined optical effect only to the image light.
Public/Granted literature
- US20160004077A1 VIRTUAL IMAGE GENERATION DEVICE AND HEAD-UP DISPLAY Public/Granted day:2016-01-07
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