US 12,287,290 B2
Microscopic Raman device
Tomoyo Tao, Kyoto (JP)
Assigned to SHIMADZU CORPORATION, Kyoto (JP)
Filed by SHIMADZU CORPORATION, Kyoto (JP)
Filed on Jul. 27, 2023, as Appl. No. 18/227,296.
Claims priority of application No. 2022-123890 (JP), filed on Aug. 3, 2022.
Prior Publication US 2024/0044800 A1, Feb. 8, 2024
Int. Cl. G01J 3/44 (2006.01); G01N 21/65 (2006.01)
CPC G01N 21/65 (2013.01) [G01N 2021/653 (2013.01); G01N 2201/06113 (2013.01); G01N 2201/0636 (2013.01); G01N 2201/0648 (2013.01)] 4 Claims
OG exemplary drawing
 
1. A microscopic Raman device comprising:
a first laser light source that generates a first laser light;
a second laser light source that generates a second laser light having a wavelength different from a wavelength of the first laser light;
a first optical element;
a second optical element;
a third optical element;
a fourth optical element; and
a spectrometer, wherein
when the first laser light is reflected by the first optical element and passes through the third optical element to irradiate a sample, a first Raman scattered light is generated from the sample,
when the second laser light is sequentially reflected by the second optical element, the fourth optical element, and the third optical element to irradiate the sample, a second Raman scattered light is generated from the sample,
the first Raman scattered light passes through the third optical element and the first optical element to enter the spectrometer, and
the second Raman scattered light is sequentially reflected by the third optical element and the fourth optical element and passes through the second optical element to enter the spectrometer.