| US 7,501,639 B2 | ||
| Optical device for light detector | ||
| Claude Debroche, Cebazat (France); Hervé Crespeau, Paris (France); and Bruno De Vandiere, Clermont-Ferrand (France) | ||
| Assigned to Flowgene, Saint-Beauzire (France) | ||
| Appl. No. 10/596,340 PCT Filed Dec. 10, 2004, PCT No. PCT/FR2004/050678 § 371(c)(1), (2), (4) Date Aug. 08, 2006, PCT Pub. No. WO2005/059523, PCT Pub. Date Jun. 30, 2005. |
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| Prior Publication US 2007/0085023 A1, Apr. 19, 2007 | ||
| Int. Cl. G01N 21/64 (2006.01) | ||
| U.S. Cl. 250—458.1 | 21 Claims |
| 1. Optical device including a cavity for which at least part is ellipsoidal with a first focus and a second focus, the device
including means of presenting a medium containing components to be analysed in the cavity at the first focus, the device also
including means of transporting an excitation light beam in the cavity along a path also passing through the first focus to
illuminate said medium at the first focus, said ellipsoidal part of the cavity (2, 32) including a wall reflecting light emitted by said medium in response to the excitation light beam, the device including
means of collecting said emitted light at the second focus,
wherein the means used to present said medium are capable of making the medium circulate along a path passing through the
first focus,
wherein the angle between the path of the means used to circulate the medium and the path of the means used to transport an
excitation beam is less than 90° at the first focus, and
wherein the means used to circulate the medium include a transparent tube, at least at the first focus.
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