Patent ID: 11936160
Assignee: FUJIFILM BUSINESS INNOVATION CORP.
Field: Optics (Instruments)
Classification: CPC G  H | IPC G  H

Claim 0:
1. A light-emitting device comprising:
a laser unit;
a drive unit that drives the laser unit; and
a first capacitive element and a second capacitive element that supply a driving electric current to the laser unit;
wherein
the first capacitive element has a smaller capacity and smaller equivalent series inductance than the second capacitive element, and
a length of a first electric current path along which the driving electric current output from the first capacitive element returns to the first capacitive element is shorter than a length of a second electric current path along which the driving electric current output from the second capacitive element returns to the second capacitive element, wherein the driving unit is configured to be on the first electric current path and on the second electric current path.