| 摘要 |
PURPOSE:To decrease the fatigue of eyes by matching the optical positions of left and right imaginary images. CONSTITUTION:Left and right lenses 2 and 3 are arranged in the state of being separated for a distance DELTA corresponding to the gap of both the eyes to be watched by both the eyes, and a main face 4 composed of main points O1 and O2 of the respective lenses 2 and 3 is formed. Parallelly with the left and right lenses 2 and 3, left and right display panels 5 and 6 are arranged so as to be moved on a line segment OF1 composed of a point O movable on this main plane 4 and a focus position F1 in a focal distance (f) of the left lens 2 and a line segment OF2 composed of a focus position F2 in the focal point distance (f) of the right lens 3. In this case, since-distances S between central positions G1 and G2 of the left and right display panels 5 and 6 and between the main planes 4 of the left and right lenses 2 and 3 are respectively equal, imaginary image central positions H1 and H2 at left and right imaginary image positions 7 and 8 from the main plane 4 exist on a line segment OH so that the imaginary images projected on the left and right eyes can be matched. |
