AERIAL DISPLAY APPARATUS
An aerial display apparatus includes: a display device configured to display an image; an optical device configured to allow light from the display device to be transmitted therethrough, and configured of a transparent material; and a mirror device configured to reflect light from the optical device and display an image in an aerial space on a side opposite to the optical device. The optical device includes a first optical member having a first thickness and a second optical member having a second thickness greater than the first thickness.
1 . An aerial display apparatus comprising:
a display device configured to display an image;
an optical device configured to allow light from the display device to be transmitted therethrough, and configured of a transparent material; and
a mirror device configured to reflect light from the optical device and display an image in an aerial space on a side opposite to the optical device, wherein
the optical device includes a first optical member having a first thickness and a second optical member having a second thickness greater than the first thickness.
2 . The aerial display apparatus according to claim 1 , wherein
the first optical member and the second optical member have an identical refraction rate.
3 . The aerial display apparatus according to claim 1 , wherein
the optical device is disposed in parallel with the display device.
4 . The aerial display apparatus according to claim 1 , wherein
the mirror device is disposed so as to be inclined with respect to the display device.
5 . The aerial display apparatus according to claim 1 , wherein
the mirror device includes a substrate and a plurality of optical elements, the optical elements being provided on a surface of the substrate on a side of the optical device, and
each of the optical elements is a rectangular parallelepiped, and includes first and second reflective surfaces, the first and second reflective surfaces being configured to reflect light and being in contact with each other.
6 . The aerial display apparatus according to claim 5 , wherein
the first reflective surface is inclined with respect to a first direction, the first direction being along one side of the display device in a horizontal plane of the mirror device.
7 . The aerial display apparatus according to claim 1 , further comprising:
a lighting device configured to produce light, wherein
the display device is a liquid crystal display device, and allows light from the lighting device to be transmitted therethrough.
8 . An aerial display apparatus comprising:
a display device configured to display an image;
an optical device configured to allow light from the display device to be transmitted therethrough, and configured of a transparent material; and
a mirror device configured to reflect light from the optical device and display an image in an aerial space on a side opposite to the optical device, wherein
the optical device has a continuously changing thickness.
9 . The aerial display apparatus according to claim 8 , wherein
the optical device is disposed in parallel with the display device.
10 . The aerial display apparatus according to claim 8 , wherein
the mirror device is disposed so as to be inclined with respect to the display device.
11 . The aerial display apparatus according to claim 8 , wherein
the mirror device includes a substrate and a plurality of optical elements, the optical elements being provided on a surface of the substrate on a side of the optical device, and
each of the optical elements is a rectangular parallelepiped, and includes first and second reflective surfaces, the first and second reflective surfaces being configured to reflect light and being in contact with each other.
12 . The aerial display apparatus according to claim 11 , wherein
the first reflective surface is inclined with respect to a first direction, the first direction being along one side of the display device in a horizontal plane of the mirror device.
13 . The aerial display apparatus according to claim 8 , further comprising:
a lighting device configured to produce light, wherein
the display device is a liquid crystal display device, and allows light from the lighting device to be transmitted therethrough.
14 . An aerial display apparatus comprising:
a display device configured to display an image;
an optical device configured to allow light from the display device to be transmitted therethrough, and configured of a transparent material; and
a mirror device configured to reflect light from the optical device and display an image in an aerial space on a side opposite to the optical device, wherein
the optical device has a constant thickness and has a gradually or continuously changing refraction rate.
15 . The aerial display apparatus according to claim 14 , wherein
the optical device is disposed in parallel with the display device.
16 . The aerial display apparatus according to claim 14 , wherein
the mirror device is disposed so as to be inclined with respect to the display device.
17 . The aerial display apparatus according to claim 14 , wherein
the mirror device includes a substrate and a plurality of optical elements, the optical elements being provided on a surface of the substrate on a side of the optical device, and
each of the optical elements is a rectangular parallelepiped, and includes first and second reflective surfaces, the first and second reflective surfaces being configured to reflect light and being in contact with each other.
18 . The aerial display apparatus according to claim 17 , wherein
the first reflective surface is inclined with respect to a first direction, the first direction being along one side of the display device in a horizontal plane of the mirror device.
19 . The aerial display apparatus according to claim 14 , further comprising:
a lighting device configured to produce light, wherein
the display device is a liquid crystal display device, and allows light from the lighting device to be transmitted therethrough.