| 摘要 |
<P>PROBLEM TO BE SOLVED: To solve the conventional inconvenient to clear and define two or three of "virtual images", which we notice in an astigma eye, by adding a virtual image creating tool in order to improve more effects as the old saying says that "fight fire with fire", because that an eyesight is important in a motorized society, and it is regrettable that we fail an exam of the car license for a lack of 0.1-0.2 in insufficient eyesight, and an existing computer and the correction of an eyesight table is philosophical and faceless, not hoped to correct the eyesight finely, and a mishap occurred with misdiagnosis of the boundary between strong astigma and amblyopia. <P>SOLUTION: A light-emitting diode 2 (Fig.1) as an immovable light source is fixed at the center of a clamping plate 1 (Fig.1) having a black background, and in order to clear and define a "virtual image" appeared in the space around the light source (within the area having the black background), a virtual image creating tool corresponding to an individual eye of a test subject is mounted with a black curtain frame 5 (Fig.1) to make the space 4 (Fig.1) darker or make it into a dark room for the use of the target of astigma correction. <P>COPYRIGHT: (C)2008,JPO&INPIT |
