Optics: measuring and testing – By particle light scattering – With photocell detection
Patent
1998-04-28
1999-11-23
Font, Frank G.
Optics: measuring and testing
By particle light scattering
With photocell detection
2504581, 2504591, G01R 902, F21V 916
Patent
active
059910305
ABSTRACT:
The apparatus for reading a luminescence pattern is equipped with a stage on which the sample to be read is mounted. A photoreceptor disk is installed in the lower part of the stage and scans and condenses light from the luminescent pattern of the sample at positions determined by the rotation of a rotary plate. A transport mechanism causes the stage and the photoreceptor disk to undergo relative motion. An optical guide part guides the light from the luminescent pattern to a photoelectric converter. The optical guide part may include mirrors or one or more optical fibers. The photoelectric converter converts the light into an electrical signal. A controller controls how scanning is performed by the photoreceptor disk and transport mechanism and generates a read scanning position signal. A data processor performs data processing by converting the electrical signal into a digital signal and obtains a scanning position signal from the controller. Additionally, a laser light source may be used to shine laser light onto an electrophoresis gel of the sample.
REFERENCES:
patent: 5069769 (1991-12-01), Fujiyama et al.
patent: 5736410 (1998-04-01), Zarling et al.
Biotechniques, vol. 11, No. 1, 1991, "Improved Chemiluminescent DNA Sequencing", C. Martin et al, pp. 110-113.
Fujimiya Hitoshi
Kondou Tateo
Nasu Hisanori
Nishida Takehiko
Tsukamoto Yuuji
Font Frank G.
Hitachi Software Engineering Co. Ltd.
Punnoose Roy M.
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