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:
Jan. 18, 1983
Filed:
Nov. 10, 1980
Makoto Yoshinaga, Hachiouji, JP;
Yutaka Takabayashi, Hachiouji, JP;
Olympus Optical Co., Ltd., Tokyo, JP;
Abstract
A turret condenser for microscopes comprising a turret, an aperture stop, a stop ring for opening and stopping down the aperture stop, a cam fixed to the turret, a lever means having one end in contact with the cam and the other end having a through hole formed therein, and a spring having one end fixed to the stop ring and the other end carrying a retaining piece fixed thereto, the spring passing through the through hole formed in the lever means, the turret condenser for microscopes being arranged so that the stop ring always keeps the stop fully opened by means of the force of the spring when the turret is in the position of phase contrast microscopy.