Patent ID: 6545806
Filing Date: 2003-04-08
Classification: G02B

Abstract:
Binoculars comprising:a pair of objective optical units; a pair of eyepiece lens units for observing an image formed by said pair of objective optical units; a pair of corrective optical units, respectively arranged in optical paths of said pair of objective optical units, for correcting image blurring by changing the optical paths; a lock member that is shifted between a locked position, in which an operation for changing the optical path of each of said corrective optical units is locked, and an unlocked position, in which the operation for changing the optical path is unlocked; drive means for driving said lock member to, and holding said lock member in, one of the locked position and the unlocked position; and a control member for activating a drive operation of said drive means, to drive said lock member to the locked position when in the unlocked position, or to drive said lock member to the unlocked position when in the locked position, in response to an input by an operator, wherein said drive means holds said lock member in a selected one of the locked position and the unlocked position after the input by the operator is terminated.