Heads-up display device

1. A head-up display apparatus comprising:

a display device that is provided inside an instrument panel and projects display light having a certain wavelength band in the visible wavelength band; and

an optical member that reflects or transmits the display light projected from the display device so as to guide the display light to a windshield or a combiner,

wherein the optical member includes a first optical member and a second optical member,

wherein the first optical member reflects only light having the certain wavelength band,

wherein the first optical member reflects the display light projected from the display device, and the second optical member directly reflects the display light from the first optical member toward the windshield or the combiner, and

wherein the first optical member is positioned outside the instrument panel and the second optical member is positioned inside the instrument panel.

2. The head-up display apparatus according to claim 1 , wherein at least one of the first and second optical members is subjected to infrared transmission processing.

3. The head-up display apparatus according to claim 1 , wherein

the first optical member is a first mirror, and

the second optical member is a second mirror.

4. The head-up display apparatus according to claim 1 , wherein at least one of the first and second optical members is a concave mirror.

5. The head-up display apparatus according to claim 1 , wherein the second optical member is positioned entirely inside the instrument panel.

6. The head-up display apparatus according to claim 1 , wherein the certain wavelength band is narrow wavelength bands of RGB.

7. The head-up display apparatus according to claim 1 , wherein the optical member is configured to include only two members of the first optical member and the second optical member.