Multicolor detection device
View Patent ↗A multicolor detection device includes: a condensing lens array 17 in which a plurality of condensing lenses 18, each of which turns light emitted from each of a plurality of light emitting points 1 individually into parallel light beams, are arranged, the light emitting points being arranged in a light emitting point array; at least one spectroscopic element on which the parallel light beams are incident in parallel, the at least one spectroscopic element being common; and at least one sensor on which light beams spectrally separated by the spectroscopic element are incident in parallel, the at least one sensor being common.
1. A multicolor detection system comprising:
a condensing-lens array having m condensing lenses that individually condense lights respectively emitted from m light-emitting points that are arranged in a light-emitting-point array and turn the lights into m light beams, where m is an integer greater than or equal to 2;
a dichroic mirror set having n dichroic mirrors including a first dichroic mirror and a second dichroic mirror, arranged substantially in parallel, where n is an integer greater than or equal to 2; and
one sensor,
wherein:
the m light beams are respectively incident in parallel on the first dichroic mirror, and the first dichroic mirror divides the m light beams into m first transmitted light beams and m first reflected light beams,
the m first reflected light beams are respectively incident in parallel on the second dichroic mirror, and the second dichroic mirror converts the m first reflected light beams into m second reflected light beams, and
the m first transmitted light beams and the m second reflected light beams are respectively incident in parallel on the sensor without being re-condensed.
2. The multicolor detection system according to claim 1 ,
wherein an optical axis direction of each of the m condensing lenses and a sensor surface of the sensor are substantially perpendicular to each other.
3. The multicolor detection system according to claim 1 ,
wherein an array direction of the n dichroic-mirrors is substantially perpendicular to each of an optical axis direction of each of the m condensing lenses and an array direction of the m condensing lenses.
4. The multicolor detection system according to claim 1 ,
wherein provided that an average effective diameter of the m light-emitting points is d, an average focal length of the m condensing lenses is f, an average effective diameter of the m condensing lenses is D, and an average optical distance for the m second reflected light beams between each of the m condensing lenses and the sensor is g,
f≤− 0.20*( d/D )* g+ 2.8 *D
is satisfied.
5. The multicolor detection system according to claim 4 ,
wherein provided that an average array interval of the m light-emitting points is p,
f≥ 0.95*( d/p )* g
is satisfied.
6. The multicolor detection system according to claim 1 ,
wherein provided that an average effective diameter of the m light-emitting points is d, an average array interval of the m light-emitting points is p, an average focal length of the m condensing lenses is f, and an average optical distance for the m second reflected light beams between each of the m condensing lenses and the sensor is g,
f≥ 0.95*( d/p )* g
is satisfied.
7. The multicolor detection system according to claim 1 ,
wherein provided that an average array interval of the m light-emitting points is p, an average effective diameter of the m condensing lenses is D, an effective diameter of the n dichroic mirrors in an array direction of the m light-emitting points is DM 1 , and an effective diameter of the n dichroic mirrors in a direction orthogonal to the array direction of the m light-emitting points is DM 2 ,
p *( m −1)+ D≤DM 1 and √2 *D≤DM 2
are satisfied.
8. The multicolor detection system according to claim 1 ,
wherein optical axes of the m condensing lenses are not parallel to each other.
9. The multicolor detection system according to claim 1 , further comprising a third dichroic mirror that is not included in the dichroic mirror set,
wherein:
m irradiation light beams are respectively incident in parallel on the third dichroic mirror, and the third dichroic mirror converts the m irradiation light beams into m third reflected light beams,
the m third reflected light beams are individually condensed by the m condensing lenses and the m light emitting points are individually irradiated with the m third reflected light beams, and
the m light beams are the lights emitted from the m light-emitting points that are then individually condensed by the m condensing lenses and are further transmitted in parallel through the third dichroic mirror.
10. A multicolor detection system comprising:
a condensing-lens array having m condensing lenses that individually condense lights respectively emitted from m light-emitting points that are arranged in a light-emitting-point array and turn the lights into m light beams, where m is an integer greater than or equal to 2;
a dichroic mirror set having n dichroic mirrors including a first dichroic mirror and a second dichroic mirror, arranged substantially in parallel, where n is an integer greater than or equal to 2; and
one sensor,
wherein:
the m light beams are respectively incident in parallel on the first dichroic mirror, and the first dichroic mirror divides the m light beams into m first transmitted light beams and m first reflected light beams,
the m first transmitted light beams are respectively incident in parallel on the second dichroic mirror, and the second dichroic mirror converts the m first transmitted light beams into m second reflected light beams, and
the m first reflected light beams and the m second reflected light beams are respectively incident in parallel on the sensor without being re-condensed.
11. The multicolor detection system according to claim 10 ,
wherein an optical axis direction of each of the m condensing lenses and a sensor surface of the sensor are substantially perpendicular to each other.
12. The multicolor detection system according to claim 10 ,
wherein an array direction of the n dichroic-mirrors is substantially perpendicular to each of an optical axis direction of each of the m condensing lenses and an array direction of the m condensing lenses.
13. The multicolor detection system according to claim 10 ,
wherein provided that an average effective diameter of the m light-emitting points is d, an average focal length of the m condensing lenses is f, an average effective diameter of the m condensing lenses is D, and an average optical distance for the m second reflected light beams between each of the m condensing lenses and the sensor is g,
f≤− 0.20*( d/D )* g+ 2.8 *D
is satisfied.
14. The multicolor detection system according to claim 13 ,
wherein provided that an average array interval of the m light-emitting points is p,
f≥ 0.95*( d/p )* g
is satisfied.
15. The multicolor detection system according to claim 10 ,
wherein provided that an average effective diameter of the m light-emitting points is d, an average array interval of the m light-emitting points is p, an average focal length of the m condensing lenses is f, and an average optical distance for the m second reflected light beams between each of the m condensing lenses and the sensor is g,
f≥ 0.95*( d/p )* g
is satisfied.
16. The multicolor detection system according to claim 10 ,
wherein provided that an average array interval of the m light-emitting points is p, an average effective diameter of the m condensing lenses is D, an effective diameter of the n dichroic mirrors in an array direction of the m light-emitting points is DM 1 , and an effective diameter of the n dichroic mirrors in a direction orthogonal to the array direction of the m light-emitting points is DM 2 ,
p *( m −1)+ D≤DM 1 and √2 *D≤DM 2
are satisfied.
17. The multicolor detection system according to claim 10 ,
wherein optical axes of the m condensing lenses are not parallel to each other.
18. The multicolor detection system according to claim 10 , further comprising a third dichroic mirror that is not included in the dichroic mirror set,
wherein:
m irradiation light beams are respectively incident in parallel on the third dichroic mirror, and the third dichroic mirror converts the m irradiation light beams into m third reflected light beams,
the m third reflected light beams are individually condensed by the m condensing lenses and the m light emitting points are individually irradiated with the m third reflected light beams, and
the m light beams are the lights emitted from the m light-emitting points that are then individually condensed by the m condensing lenses and are further transmitted in parallel through the third dichroic mirror.
19. A multicolor detection system comprising:
a condensing-lens array having m condensing lenses that individually condense lights respectively emitted from m light-emitting points that are arranged in a light-emitting-point array and turn the lights into m light beams, where m is an integer greater than or equal to 2; and
one sensor,
wherein:
the m light beams are respectively incident in parallel on the sensor,
each of the m light-emitting points has a finite size, and
provided that an average effective diameter of the m light-emitting points is d, an average focal length of the m condensing lenses is f, an average effective diameter of the m condensing lenses is D, and an average optical distance for the m light beams between each of the m condensing lenses and the sensor is g,
f≤− 0.20*( d/D )* g+ 2.8 *D
is satisfied.
20. A multicolor detection system, comprising:
a capillary array having m capillaries, at least part of the m capillaries being arrayed on a same plane, where m is an integer greater than or equal to 2,
a condensing-lens array having m condensing lenses that individually condense lights respectively emitted from the m capillaries arrayed on the same plane and turn the lights into m light beams; and
one sensor,
wherein:
the m light beams are respectively incident in parallel on the sensor without being re-condensed, and
the same plane and a sensor surface of the sensor are substantially parallel to each other.
21. The multicolor detection system according to claim 20 ,
wherein the sensor is configured such that a plurality of kinds of pixels having different spectroscopic characteristics are two-dimensionally arranged.
22. The multicolor detection system according to claim 21 ,
wherein provided that an average effective diameter of the m condensing lenses is D and an average pixel size of the sensor is S,
S<D
is satisfied.