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:
Dec. 17, 1985

Filed:

Nov. 24, 1982
Applicant:
Inventor:

Takashi Yamada, Hachioji, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01J / ;
U.S. Cl.
CPC ...
356409 ; 356414 ; 356418 ;
Abstract

In a colorimeter for use in a biochemistry field, an amount of transmitted light impinging upon a light receiving device is decreased corresponding to an absorbance of a reagent to be used by arranging a light adjusting device in the optical path. The amount of light transmitted through a blank cuvette is made substantially equal to an amount of light transmitted through the reagent. Therefore, even when the analysis is performed for an item using a high absorbance reagent, the deviation of the amount of transmitted light does not affect measured absorbance values, and thus it is possible to perform the color measurement in an accurate manner regardless of the reagent absorbance.


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