Radiant energy – Photocells; circuits and apparatus – With circuit for evaluating a web – strand – strip – or sheet
Patent
1996-04-09
1998-02-24
Westin, Edward P.
Radiant energy
Photocells; circuits and apparatus
With circuit for evaluating a web, strand, strip, or sheet
25055944, 356375, 422 8205, G01N 128, G01N 2100
Patent
active
057214352
ABSTRACT:
An optical measurement system includes a test surface having disposed thereon a plurality reference markings and a plurality of test spots containing chemical and biological substances. Molecules of interest contained in the chemical and biological substances are tagged with optically detectable labels. A light source generates a beam of light which is then directed by a deflecting sub-system across the test surface, thereby individually impinging the test spots and the reference markings. Optical signals resulting from the impingement are detected by a detection means, which records such detection and the time of the detection. The reference markings have optically unique signatures to distinguish the markings from the optical signatures of the signals emitted from the chemical and biological substances in the test spots. The reference markings are spaced apart at known distances and serve to provide a constant calibration of the scan speed of the beam of light. In one embodiment, a Winston concentrator directs the light emanating from the test surface to the detector. In another embodiment, an off-axis parabolic mirror arrangement directs the light to the detector.
REFERENCES:
patent: 4647531 (1987-03-01), Kamentsky
patent: 5083035 (1992-01-01), Pecen et al.
patent: 5427910 (1995-06-01), Kamentsky et al.
patent: 5532128 (1996-07-01), Eggers et al.
patent: 5550634 (1996-08-01), Nakamura
patent: 5565988 (1996-10-01), Nara et al.
patent: 5631170 (1997-05-01), Attridge
patent: 5653939 (1997-08-01), Hollis et al.
patent: 5670322 (1997-09-01), Eggers et al.
Fodor, Stephen P.A., et al., "Light-Directed, Spatially Addressable Parallel Chemical Synthesis, " Science, Feb. 15, 1991, pp. 767-773.
Hewlett -Packard Company
Lee John R.
Westin Edward P.
LandOfFree
Methods and apparatus for measuring optical properties of biolog does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Methods and apparatus for measuring optical properties of biolog, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Methods and apparatus for measuring optical properties of biolog will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1876669