发明公开
EP2469324A1 An embossed reflective volume phase grating for a heads up display system diffractive combiner
审中-公开
Geprägtesreflektives Volumenphasengitterfüreinen diffraktiven Strahlvereinigerfürein Head-up-Anzeigesystem
- 专利标题： An embossed reflective volume phase grating for a heads up display system diffractive combiner
- 专利标题（中）： Geprägtesreflektives Volumenphasengitterfüreinen diffraktiven Strahlvereinigerfürein Head-up-Anzeigesystem
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申请号： EP11191933.8申请日： 2011-12-05
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公开(公告)号： EP2469324A1公开(公告)日： 2012-06-27
- 发明人: Lambert, David K.
- 申请人： Delphi Technologies, Inc.
- 申请人地址： PO Box 5052 Troy, MI 48007 US
- 专利权人： Delphi Technologies, Inc.
- 当前专利权人： Delphi Technologies, Inc.
- 当前专利权人地址： PO Box 5052 Troy, MI 48007 US
- 代理机构： Denton, Michael John
- 优先权： US975855 20101222
- 主分类号： G02B27/01
- IPC分类号： G02B27/01
摘要：
A heads up display (HUD (12)) system that includes a light source (14) configured to project an image (20), and a diffractive combiner (16). The diffractive combiner (16) includes one or more reflective volume phase gratings (RVPG (26)), each configured to reflect light from the light source (14) having a distinct wavelength toward a HUD viewer (22). Each RVPG (26) is also embossed with a pattern configured to diffract light at the distinct wavelength so the HUD viewer (22) can see an image (20) in a field of view (24) that passes through the diffractive combiner (16). By forming a diffractive combiner (16) with an RVPG (26) embossed with a particular pattern, the occurrence of rainbow artifacts on the surface of the diffractive combiner (16) caused by random sources of light is reduced.
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