Broadband light source device and biochemical analyzing device
US11754493B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 9, 2019 |
| Grant date | Sep 12, 2023 |
| Priority date | — |
| Expiry date | Apr 3, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10H20/8512
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A broadband light source device in a biochemical analyzing device, and facilitates maintenance thereof, including an LED substrate that is provided with an LED chip generating a light beam having a first wavelength band and including a fluorescent substance in the light beam having a first wavelength band and that is provided with an LED chip generating a light beam having a second wavelength band, in which 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. The broadband light source device further includes an optical system including a light pipe that color-mixes the light beam passing through the fluorescent substance of the LED chip and the light beam emitted from the LED chip, and a flat dichroic prism.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.