CPC G02B 27/0101 (2013.01) [B60K 35/00 (2013.01); B60K 2370/1529 (2019.05); B60K 2370/23 (2019.05); B60K 2370/31 (2019.05); B60K 2370/334 (2019.05); B60K 2370/785 (2019.05); G02B 2027/0118 (2013.01)] | 19 Claims |
1. A head-up display, comprising:
a display that displays an image; and
a projection optical system that forms a virtual image,
wherein the projection optical system includes a first mirror and a second mirror, the first mirror being disposed above the display and reflecting display light of the image, the second mirror reflecting the display light from the first mirror toward a display medium onto which the virtual image is projected, and
a first expression of 0.3<L1/L2<0.6 is satisfied, where L1 denotes a length of a line segment that connects a center of the display and a center of the first mirror, and L2 denotes a length of a line segment that connects the center of the first mirror and a center of the second mirror,
wherein the second mirror is disposed above the display and below the display medium.
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