| 摘要 |
PURPOSE:To maintain and recover eyesight by stimulating the eyeballs with ultrasonic waves while enjoying virtual images of images on liquid crystal panels by providing reflecting mirrors which have the stuck ultrasonic wave oscillators and are arranged on optical axes at 45 deg.. CONSTITUTION:Reflecting mirrors 3 and 4 which have a 45 deg. angle to the optical axes of liquid crystal panels 1 and 2 whose optical axes cross each other at a certain constant distance are provided on the optical axes, and convex lenses 5 and 6 are arranged so as to have their optical axes to be coincident with the optical axes in directions wherein the two optical axes reflected by the reflecting mirrors 3 and 4 are converged. Further, reflecting mirrors 7 and 8 are arranged at 45 deg. on the optical axes, ultrasonic oscillators 9 and 10 are arranged by being adhered with the backs of the reflecting mirrors 7 and 8, and the directions of ultrasonic waves are set toward the eyeball. Consequently, images displayed on the liquid crystal panels 1 and 2 pass through the reflecting mirrors 3 and 4 and convex lenses 5 and 6 to see the virtual images of the images through the reflecting mirrors 7 and 8, and the ultrasonic waves are emitted from the reflecting mirrors 7 and 8, thereby stimulating the eyeballs at all times. |
