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.

Date of Patent:
Jul. 14, 1998

Filed:

Aug. 09, 1996
Applicant:
Inventors:

Ryosuke Miura, Tokyo-to, JP;

Kiyoshi Taguchi, Sapporo, JP;

Kazuyuki Ito, Tokyo-to, JP;

Assignee:

Kabushiki Kaisha Toshiba, Kawasaki, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N / ;
U.S. Cl.
CPC ...
250573 ; 250576 ; 356442 ;
Abstract

An imaging glass window and an illumination glass window which are opposed to each other define a sample chamber, and the sample chamber holds sample liquid containing particulates. Light from the particulates is magnified by a zoom magnifying glass via the imaging glass window, optical axis angle changing means and optical axis length changing means and imaged by a CCD camera. An image of the sample liquid is supplied to image control means, and the optical axis angle changing means is operated by the image control means to change an optical axis of the light from the sample liquid and shift an image of an intended one of the particulates in the sample liquid to the center a camera lens of the cameraeen. Concurrently the zoom magnifying glass is set at a required magnification by the control means.


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