| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an optotypes device capable of using a great variety of visual targets and minutely expressing fine visual targets while attaining thinning of the device. <P>SOLUTION: This optotypes device has a liquid crystal display 7; a film member 63 formed with the visual targets; a drive mechanism part 50 for moving the film member 63; a CPU 70 controlling the drive mechanism part 50 to arrange the film member 63 in front of the liquid crystal display 7 and illuminating the film member 63 from the rear with the liquid crystal display 7 to present the visual targets. The optotypes device is further provided with a display control means 72 allowing the liquid crystal display 7 to display a visual target pattern, and can also be constituted to switch a first visual target presenting mode of illuminating the film member 63 from the rear with the liquid crystal display 7 and a second visual target presenting mode of retreating the film member 63 from the front of the liquid crystal display 7 and allowing the liquid crystal display 7 to display the visual target pattern for presentation. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
