US 12,376,739 B2
Endoscopic illumination system for fluorescent agent
Kunihiko Onobori, Friedberg (DE)
Assigned to HOYA CORPORATION, Tokyo (JP)
Appl. No. 18/013,140
Filed by HOYA CORPORATION, Tokyo (JP)
PCT Filed Jun. 24, 2021, PCT No. PCT/IB2021/055595
§ 371(c)(1), (2) Date Dec. 27, 2022,
PCT Pub. No. WO2022/003506, PCT Pub. Date Jan. 6, 2022.
Claims priority of application No. 10 2020 117 579.5 (DE), filed on Jul. 3, 2020.
Prior Publication US 2023/0240521 A1, Aug. 3, 2023
Int. Cl. A61B 1/07 (2006.01); A61B 1/05 (2006.01); A61B 1/06 (2006.01)
CPC A61B 1/07 (2013.01) [A61B 1/05 (2013.01); A61B 1/06 (2013.01); A61B 1/0638 (2013.01); A61B 1/0646 (2013.01)] 13 Claims
OG exemplary drawing
 
1. An illumination apparatus for outputting an output light, comprising
a first light source configured to emit first light with a first peak wavelength in a first range of 660 nm to 699 nm;
a second light source configured to emit second light with a second peak wavelength in a second range of 689 nm to 705 nm; wherein
the second peak wavelength is larger than the first peak wavelength by at least 5 nm;
the second light source is configured to be switched on and off independently from the first light source;
the apparatus is configured to output the first light as the output light if the second light source is switched off and to output the first light and the second light as the output light if the second light source is switched on.