MAGNIFIER

PROBLEM TO BE SOLVED: To provide a magnifier capable of having the focal points of the right and left lenses coincide with each other when used in binocular. SOLUTION: Misalignment of the right and left focal positions caused by the difference L1 of the optical path length from a first lens 3 to an object, and the optical path length from a second lens 4 to the object is corrected by elongating the focal position of the second lens 4 by disposing the second lens 4 having a short optical path length to the object T and a focal distance correcting glass 5 having predetermined refractive index and thickness on the same optical axis. COPYRIGHT: (C)2009,JPO&INPIT