Patent ID: 6018420
Filing Date: 2000-01-25
Classification: G02B

Abstract:
A binocular comprising:right and left telescopic optical systems arranged side by side, each of said telescopic optical systems having an objective lens, an erecting system, a pair of positive and negative compensation lenses and an observing optical system arranged along an optical axis;a driving mechanism for shifting said compensation lenses such that trembling of said image due to a hand vibration is compensated, said driving mechanism comprising:a first frame having first and second arms that is rotatable about a rotation axis that is parallel to the optical axes of both of said telescopic optical systems, the negative compensation lens of said right telescopic optical system and the positive compensation lens of said left telescopic optical system being held at said first and second arms of said first frame; anda second frame having first and second arms that is rotatable about said rotation axis, the positive compensation lens of said right telescopic optical system and the negative compensation lens of said left telescopic optical system being held at said first and second arms of said second frame;wherein said first and second frames are rotated in the opposite directions to each other.