Spectrometer with led array

G - Physics – 01 – N

Patent

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Details

G01N 21/25 (2006.01) G01J 1/08 (2006.01) G01J 3/10 (2006.01) G01J 3/44 (2006.01) G01N 21/55 (2006.01) G01N 21/64 (2006.01)

Patent

CA 2702304

A device (110) for determining at least one optical property of a sample (112) Is proposed. The device (110) comprises a tuneable excitation light source (114; 410) for applying excitation light (122) to the sample (112). The device (110) furthermore comprises a detector (128, 130; 312) for detecting detection light (132, 136; 314) emerging from the sample (112). The excitation light source (114; 410) comprises a light-emitting diode array (114), which is configured at least partly as a monolithic light-emitting diode array (114). The monolithic light emitting diode array (114) comprises at least three light-emitting diodes (426) each having a different emission spectrum.

L'invention concerne un dispositif (110) destiné à déterminer au moins une propriété optique d'un échantillon (112). Le dispositif (110) comprend une source de lumière d'excitation accordable (114; 410) destinée à exposer l'échantillon (112) à une lumière d'excitation (122). Le dispositif (110) comprend également un détecteur (128, 130; 312) prévu pour détecter la lumière de détection (132, 136; 314) émanant de l'échantillon (112). La source de lumière d'excitation (114; 410) comprend un réseau de diodes électroluminescentes (1 14), réalisé au moins en partie sous la forme d'un réseau de diodes électroluminescentes monolithique (114). Le réseau de diodes électroluminescentes monolithique (114) comprend au moins trois diodes électroluminescentes (426) présentant chacune un spectre d'émission différent.

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