Patent ID: 6056404
Filing Date: 2000-05-02
Classification: A61B

Abstract:
An ophthalmic apparatus for examining or measuring an eye to be examined, having an alignment optical system for aligning a position of the eye and that of a measuring system so as to be the predetermined positional relationship therebetween, the apparatus comprising:projecting means having a light source for projecting a pencil onto an examinee's face;photo-receiving means which is an optical system having a positional detector for receiving reflex caused by said projecting means, said photo-receiving means having a detecting area which includes a right boundary of the examinee's face under the condition of being aligned with a right eye and a left boundary of the examinee's face under the condition of being aligned with a left eye; andjudging means for judging whether the eye is a right eye or a left eye in a manner of judging whether a face's boundary is the right boundary or the left boundary based on results detected by said photo-receiving means.