| 摘要 |
PURPOSE:To provide a compact and easy-to-operate training device for eyesight adjusting function, while having a viewing object for enabling a trainer to undergo intensive and sustained training, by selectively displaying a plurality of hologram reproduced images different in a distance or a direction from the trainer's eyes. CONSTITUTION:This device is provided with a holder 1 for holding a hologram 2 having two kinds of far and near reproduced images on an A plane (surface) and a B plane (reverse surface), together with a turntable 4 for supporting the hologram 2 in rotatable state and a rotation knob 5 for rotating the holder 1. A trainer, while gazing at a hologram reproduced image 3, rotates the hologram 2 at suitable speed, using the knob 5. As a result, the trainer comes to gaze at two kinds of far and near hologram reproduced images 3a and 3b alternately. Also, the trainee repeats eyesight adjustment in a depthwise direction by alternately gazing at the images 3a and 3b. Thus, the effect of eyesight adjustment training can be provided. |
