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US 8,077,313 B2Granted
Optical measuring device, optical measuring apparatus and fine particle measuring apparatus using optical measuring device
AssigneeSony Corporation
InventorsMotohiro Furuki, Masataka Shinoda, Shingo Imanishi
Life of this patent
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Abstract
Disclosed herein is an optical measuring device, including: a plurality of microfluidic channels extending in parallel to each other; and a scanning section configured to scan a plurality of measuring light beams in a scanning direction in which the microfluidic channels are juxtaposed to optically measure fine particles introduced into the microfluidic channels.
Claims7
An optical measuring device, comprising:
- a plurality of microfluidic channels extending in parallel to each other, wherein said microfluidic channels are arranged in a predetermined spaced relationship from each other in the scanning direction while the measuring light beams are irradiated and scanned in such a manner as to be spaced from each other at distances in the scanning direction, and where the microfluidic channel width of said microfluidic channels in the scanning direction is represented by wchannel, a minimum distance D(min) from among the distances between two adjacent ones of the measuring light beams in the scanning direction and a spot width W of the measuring light beams satisfy the following expression (1):
- wchannel+W<D(min) (1);
- and
- scanning means for scanning a plurality of measuring light beams in a scanning direction in which said microfluidic channels are juxtaposed to optically measure fine particles introduced into said microfluidic channels,
- wherein said scanning means scans the measuring light beams such that, when one of the measuring light beams is irradiated upon one of said microfluidic channels, the other measuring light beams are not irradiated upon any one of said microfluidic channels.
2 more elements
An optical measuring apparatus, comprising:
- an exchangeable member;
- and
- an optical measuring device including a plurality of microfluidic channels extending in parallel to each other and scanning means for scanning a plurality of measuring light beams in a scanning direction in which said microfluidic channels are juxtaposed to optically measure fine particles introduced into said microfluidic channels;
- said microfluidic channels being arranged in a predetermined spaced relationship from each other in the scanning direction while the measuring light beams are irradiated and scanned in such a manner as to be spaced from each other at distances in the scanning direction;
- said microfluidic channels having a channel width w in the scanning direction which satisfies the following expression (3):
- w+Wspot<Dspot(min) (3)
- where Wspot is a spot width of the measuring light beams in the scanning direction and Dspot(min) is a minimum distance from among the distances between two ones of the measuring light beams in the scanning direction.
4 more elements
An optical measuring apparatus, comprising:
- an exchangeable member;
- and
- an optical measuring device including a plurality of microfluidic channels extending in parallel to each other and scanning means for scanning a plurality of measuring light beams in a scanning direction in which said microfluidic channels are juxtaposed to optically measure fine particles introduced into said microfluidic channels;
- said microfluidic channels being arranged in a predetermined spaced relationship from each other in the scanning direction while the measuring light beams are irradiated and scanned in such a manner as to be spaced from each other at distances in the scanning direction;
- each of the measuring light beams being irradiated, where each of the distances between said microfluidic channels in the scanning direction is divided into a plurality of zones of a predetermined dimension in the scanning direction, in one of the zones while one of the zones in which one of the measuring light beams is irradiated and another one of the zones in which another one of the measuring light beams is irradiated are different from each other and are not continuous to each other.
2 more elements
Dependencies are inferred from the claim text.