Head mounted lamp with joint observation eyepiece

Claim 1

A head mounted lamp with joint observation eyepiece comprising (a) a head band arranged for removable support on a person's head, (b) a depending support secured on said head band for universal adjustment, (c) a mirror, (d) a prism, (e) an elongated housing having a mounting support provided at the forward end thereof, (f) said mirror positioned within said mounting support, (g) means securing said mounting support on a lower portion of said depending support for locating said mounting support and housing below said head band adjacent to one eye of the wearer, (h) lighting means on said depending support for illuminating said mirror, (i) means defining a single viewing passageway through said housing and mirror providing a viewing path which opens at the rear of said housing and which is arranged to be disposed at the eye of the wearer of the head band, (j) said prism in said housing disposed in said viewing path, (k) a tube secured at one of its ends adjacent to the end of said housing and projecting at approximately a right angle from said housing, (l) the interior of said tube at said one end communicating with the viewing path through said housing, (m) said prism having a branch viewing path extending through said tube, (n) and an eyepiece on the other end of said tube, (o) said tube being of a length sufficient such that a second person has a viewing location at the eyepiece on said tube out of the way of and at an angle to the person wearing the head band.