US 11,754,493 B2
Broadband light source device and biochemical analyzing device
Tomoto Kawamura, Tokyo (JP); Takahiro Ando, Tokyo (JP); Shin Imamura, Tokyo (JP); Masaaki Komatsu, Tokyo (JP); Yuya Matsuoka, Tokyo (JP); Takeshi Ishida, Tokyo (JP); and Sakuichiro Adachi, Tokyo (JP)
Appl. No. 17/289,358
Filed by Hitachi High-Tech Corporation, Tokyo (JP)
PCT Filed Oct. 9, 2019, PCT No. PCT/JP2019/039753
§ 371(c)(1), (2) Date Apr. 28, 2021,
PCT Pub. No. WO2020/100473, PCT Pub. Date May 22, 2020.
Claims priority of application No. 2018-214799 (JP), filed on Nov. 15, 2018.
Prior Publication US 2021/0381954 A1, Dec. 9, 2021
Int. Cl. G01N 21/25 (2006.01); G01N 21/31 (2006.01); G01N 21/64 (2006.01); H01L 25/075 (2006.01); H01L 33/50 (2010.01)
CPC G01N 21/255 (2013.01) [G01N 21/314 (2013.01); G01N 21/6428 (2013.01); H01L 25/0753 (2013.01); G01N 2021/3181 (2013.01); G01N 2201/062 (2013.01); H01L 33/502 (2013.01)] 10 Claims
OG exemplary drawing
1. A broadband light source device, comprising:
a first LED chip that generates a light beam having a first wavelength band;
a fluorescent substance that is provided in the light beam of the first LED chip; and
a second LED chip that generates a light beam having a second wavelength band, wherein
the fluorescent substance includes at least alumina and at least one of Fe, Cr, Bi, Tl, Ce, Tb, Eu, and Mn and is produced by calcining a raw material that contains sodium at 6.1 to 15.9 wt. % in the whole raw material, and the light beam from the fluorescent substance and the light beam from the second LED chip are color-mixed,
a center of the first wavelength band is 370 to 390 nm, and
a center of the second wavelength band is 340 nm.