Head-up display device
JP2025042057APending Publication Date: 2025-03-27NIPPON SEIKI CO LTD
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Patent Information
- Application Number
- JP2023148859
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2023-09-14
- Publication Date
- 2025-03-27
AI Technical Summary
Benefits of technology
【0008】 本発明によれば、第1ミラー及び第2ミラーのうち少なくとも一方の、上側の曲率半径と下側の曲率半径とが互いに異なることで、1つの表示部で、チルト角を変えることなく、路面に対して傾斜する虚像と路面に対して垂直な実像とをスムーズに切り替えて表示することができる。
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Abstract
To provide a head-up display device capable of instantaneously switching between real and virtual images for use depending on the driving situation.SOLUTION: A head-up display is provided, comprising a display unit 12 capable of switching polarization of emitted light between first polarization and second polarization, a first mirror 131 configured to reflect display light L1 of the first polarization and transmit display light L2 of the second polarization, a second mirror 132 for reflecting the display light L2, and a control unit 15 for controlling the display unit 12. The head-up display is configured such that either of the first mirror 131 or the second mirror 132 has an upper-side curvature radius that is different from a lower-side curvature radius to make a first angle for displaying a virtual image VI different from a second angle for displaying a real image RI.SELECTED DRAWING: Figure 1
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