| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide visual acuity examination equipment capable of adjusting the position of a lamp without being affected by the light of the lamp. <P>SOLUTION: The projection type visual acuity examination equipment is constituted so as to project a target on a screen separated by a predetermined distance with respect to a subject. This sight examination equipment is equipped with a projection optical system having a light source for the projection of the target, a holding member for holding the light source, a glare preventing means provided at a position preventing the glare of the light to an adjusting person due to the luminous flux from the light source and an adjusting member for adjusting the position of the light source in the projection optical system in such a state that glare is prevented by the glare preventing means. <P>COPYRIGHT: (C)2004,JPO |
