Binocular loupe

1. A binocular loupe to magnify a subject at hand to see, comprising:

frame means;

a pair of binocular loupe bodies;

attaching means for fixing the binocular loupe bodies to the frame means;

focus adjusting means for adjusting a focal length of each of the binocular loupe bodies;

supporting means for detachably attaching the focus adjusting means to eyepiece portions of the binocular loupe bodies; and

two joint faces having either a magnet plate or an ion plate for joining the focus adjusting means and each of the binocular loupe bodies,

wherein the focus adjusting means has magnification adjusting lenses selected from a plurality of different focal lengths which is beforehand prepared, and the focus adjusting means is attached to the supporting means, and

wherein each of the two joint faces has a flange portion to enlarge an area of each of the faces, and each of the magnet plate and the ion plate is installed in the flange portion.

2. The binocular loupe according to claim 1 , wherein the attaching means comprises

a main-glass attaching frame,

a main-glass attaching carrier lens which has an opening and is fixed by the main-glass attaching frame, and

a main-glass attaching portion fitted into the opening of the main-glass attaching carrier lens.

3. The binocular loupe according to claim 1 , wherein each of the focus adjusting means and each of the binocular loupe bodies is provided with either a convex portion or a concave portion to engage the adjusting means and the bodies with one another.

4. The binocular loupe according to claim 3 , wherein positioning lines are marked on the focus adjusting means and the binocular loupe bodies to engage the adjusting means and the bodies with one another in predetermined positions.