The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 07, 1998
Filed:
Jun. 10, 1996
Akira Watanabe, Hanno, JP;
Shuji Nakagawa, Hamura, JP;
Olympus Optical Co., Ltd., Tokyo, JP;
Abstract
A revolver control device of this invention includes a revolver rotatably formed and having a plurality of mounting holes which contain a specified mounting hole corresponding to a specified objective and in which a plurality of objectives containing the specified objective are respectively mounted, recognition circuit for recognizing at least one of one of the plurality of objectives and one of the plurality of mounting holes which lies on an observation optical axis, driving circuit for giving the rotation driving force to the revolver to move one of the plurality of objectives onto the observation optical axis, and control circuit for controlling the driving circuit to prevent the specified objective mounted on the revolver or the specified mounting hole from being passed through the observation optical axis by rotation of the revolver when at least one of the objective and mounting hole recognized by the recognition circuit is replaced by at least one of the plurality of objectives and mounting holes which is used as one of a target objective and a target hole.