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. 07, 1997
Filed:
Mar. 16, 1995
David M Heffelfinger, San Pablo, CA (US);
Franklin R Witney, Novato, CA (US);
Bio-Rad Laboratories, Inc., Hercules, CA (US);
Abstract
A method and apparatus to detect fluorescence from a sample is provided. The optical system allows the user to continuously tune the wavelengths and bandwidths of the excitation source and the emission detection system. A peaking function automatically peaks the detected fluorescent signal by fine tuning the excitation and emission detection systems. A look-up table allows the fluorescent signal for a specific wavelength to be corrected for the wavelength dependence of the optical train. In one embodiment of the system the sample is simultaneously irradiated in more than one wavelength band, each wavelength band being independently tunable.