Patent ID: 7251073
Filing Date: 2007-07-31
Classification: G02B

Abstract:
1. A pair of binoculars comprising; a pair of supporters for supporting adjustment lenses provided between a pair of ocular optical systems and a pair of objective optical systems so as to be capable of moving forward and backward along the optical axes, a focusing gear for performing a focusing operation by moving said pair of supporters forward or backward at the same time in the direction of optical axis, a diopter adjuster for performing a diopter adjustment by moving one supporter forward or backward in the direction of optical axis while keeping the other supporter stationary, and a single focusing and diopter adjusting unit for operating both of the focusing gear and the diopter adjuster, having a changeover gear choosing between the focusing gear and the diopter adjuster to be controlled at a time with the focusing and diopter adjusting unit.