Radiant energy – Photocells; circuits and apparatus – Optical or pre-photocell system
Reexamination Certificate
2011-08-30
2011-08-30
Le, Que T (Department: 2878)
Radiant energy
Photocells; circuits and apparatus
Optical or pre-photocell system
C250S23700G
Reexamination Certificate
active
08008614
ABSTRACT:
The object of the present invention is to provide a device for detecting with higher sensitivity emission light in the form of fluorescence or phosphorescence emitted from a micro-object irradiated by an excitation light. The present invention provides means for suppressing reflected and scattered light arising from excitation light impinging on the semiconductor detection element of the device, comprising a pinhole formed in a fluorescence collecting microlens, through which the excitation light passes, irradiating the micro-object. The device may also be provided with another means for suppressing reflected and scattered excitation light comprising a non-horizontal surface that is not perpendicular to the excitation light, formed on a part of the light-transparent chip surface from which the excitation light exits.
REFERENCES:
patent: 7489401 (2009-02-01), Kamei et al.
patent: 7595881 (2009-09-01), Leonard et al.
patent: 2005-535871 (2005-11-01), None
patent: 2008-39655 (2008-02-01), None
patent: WO 03/102554 (2003-12-01), None
Toshihiro Kamei, et al., “Integrated Hydrogenated Amorphous Si Photodiode Detector for Microfluidic Bioanalytical Devices”, Analytical Chemistry, vol. 75, No. 20, Oct. 15, 2003, pp. 5300-5305.
Toshihiro Kamei, et al., “Contact-lens type of micromachined hydrogenated amorphous Si fluorescence detector coupled with microfluidic electrophoresis devices”, Applied Physics Letters 89, 2006, pp. 114101-1-114101-3.
Furuta Shigeyuki
Kamei Toshihiro
Shikanai Amane
Takahashi Akira
Le Que T
National Institute of Advanced Industrial Science and Technology
Oblon, Spivak McClelland, Maier & Neustadt, L.L.P.
Ricoh Optical Industries Co., Ltd.
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