Apparatus for detecting images of particulates in liquid

Details Apparatus for detecting images of particulates in liquid Apparatus for detecting images of particulates in liquid

1996-08-09

1998-07-14

Westin, Edward P.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

250576, 356442, G01N 1506

Patent

active

057808651

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.

REFERENCES:
patent: 5166537 (1992-11-01), Horiuchi et al.
patent: 5194921 (1993-03-01), Tambo et al.

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