| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a retina projection display device which superimpose various display video on object video of a real world, and clearly projection-displays the superimposed video on a retina of an eye, without adjusting a focus of the eye. <P>SOLUTION: A liquid crystal panel 53, a lens system 70, a pin hole element 80, a half mirror 90, and a concave mirror 100 are successively and coaxially arranged. A focus f of the lens system 70 is positioned at a center of the hole element 80 with a spherical center of the concave mirror 100. A distance between the liquid crystal panel 53 and the lens system 70 is adjusted so as to position an image point of the lens system 70 at the focus of the concave mirror 100. Therefore, reflection light of the concave mirror 100 becomes parallel light and enters the half mirror 90. Consequently, external light indicating object video of a real world and display light of the liquid crystal panel 53 becomes superimposed light and are emitted from the half mirror 90 toward eyes of a driver, under the reflection parallel light from the concave mirror 100 to the half mirror 90. <P>COPYRIGHT: (C)2013,JPO&INPIT</p> |
