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:
Mar. 22, 1977
Filed:
Aug. 22, 1975
Applicant:
Inventors:
Assignee:
Shimadzu Seisakusho Ltd., Kyoto, JA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N / ; G01J / ;
U.S. Cl.
CPC ...
356 73 ; 250557 ; 356 82 ; 356 96 ; 356203 ;
Abstract
Method and apparatus for densitometry wherein a sample spot developed on a supporting medium is scanned by monochromatic light in a zigzag way, and at a predetermined point outside the spot in each scanning stroke the measured output is periodically sampled and stored so as to be subtracted from the measured output during the scanning stroke for correction of the base line of the measured output.