公开(公告)号：US20190323678A1

公开(公告)日：2019-10-24

申请号：US16390000

申请日：2019-04-22

Applicant: NICHIA CORPORATION

Inventor： Takuya SUZUKI ,  Takashi MUKAI

IPC: F21S45/70 ,  F21S41/176 ,  F21V23/00 ,  F21S41/16 ,  F21V23/04

Abstract: A light emitting module includes a laser element and a first transistor including a first electrode connected to the laser element, a second electrode connected to a power supply, and a control electrode. A second transistor includes a first electrode connected to a second reference potential via a first resistor, a second electrode connected to a first reference potential, and a control electrode. The control electrode of the first transistor is connected to the first electrode of the second transistor and the first resistor. A conversion member is to convert a laser beam emitted by the laser element and includes a sensing wire via which the control electrode of the second transistor is connected to a third reference potential. The control electrode of the second transistor is connected to a fourth reference potential via a second resistor.

公开(公告)号：US20200248885A1

公开(公告)日：2020-08-06

申请号：US16856051

申请日：2020-04-23

Applicant: NICHIA CORPORATION

Inventor： Takuya SUZUKI ,  Takashi MUKAI

IPC: F21S45/70 ,  F21V23/04 ,  F21V23/00 ,  F21S41/16 ,  F21S41/176

Abstract: A light emitting module includes a laser element and a conversion member to convert a laser beam in a light having a different wavelength from a wavelength of the laser beam. A first FET includes a first gate. A second FET includes a second gate. A first transistor is serially connected to the second FET at a first connection node that is connected to the first gate. A sensing wire is provided on the conversion member. A second resistor is serially connected to the sensing wire at a second connection node that is connected to the second gate.