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1. WO2020031414 - LASER DIODE ARRAY DEVICE MANUFACTURING METHOD, LASER LIGHT EMITTING CIRCUIT, AND RANGING DEVICE

Publication Number WO/2020/031414
Publication Date 13.02.2020
International Application No. PCT/JP2019/010001
International Filing Date 12.03.2019
IPC
H01S 5/022 2006.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
SDEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
5Semiconductor lasers
02Structural details or components not essential to laser action
022Mountings; Housings
G01S 7/484 2006.01
GPHYSICS
01MEASURING; TESTING
SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
7Details of systems according to groups G01S13/, G01S15/, G01S17/127
48of systems according to group G01S17/58
483Details of pulse systems
484Transmitters
H01S 5/042 2006.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
SDEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
5Semiconductor lasers
04Processes or apparatus for excitation, e.g. pumping
042Electrical excitation
CPC
G01S 7/484
GPHYSICS
01MEASURING; TESTING
SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
7Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
48of systems according to group G01S17/00
483Details of pulse systems
484Transmitters
H01S 5/022
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
SDEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
5Semiconductor lasers
02Structural details or components not essential to laser action
022Mountings; Housings
H01S 5/042
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
SDEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
5Semiconductor lasers
04Processes or apparatus for excitation, e.g. pumping, ; e.g. by electron beams
042Electrical excitation ; ; Circuits therefor
Applicants
  • オムロン株式会社 OMRON CORPORATION [JP]/[JP]
Inventors
  • 藤原 直樹 FUJIWARA, Naoki
  • 古賀 広志 KOGA, Hiroshi
Agents
  • 山尾 憲人 YAMAO, Norihito
  • 和田 充夫 WADA, Mitsuo
Priority Data
2018-15182610.08.2018JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) LASER DIODE ARRAY DEVICE MANUFACTURING METHOD, LASER LIGHT EMITTING CIRCUIT, AND RANGING DEVICE
(FR) PROCÉDÉ DE FABRICATION DE DISPOSITIF DE RÉSEAU DE DIODES LASER, CIRCUIT D'ÉMISSION DE LUMIÈRE LASER ET DISPOSITIF DE TÉLÉMÉTRIE
(JA) レーザダイオードアレイデバイスの製造方法、レーザ発光回路及び測距装置
Abstract
(EN)
Provided is a laser light emitting circuit (4) for causing an LD array (1) comprising a plurality of LDs (1a, 1b, 1c) to simultaneously or sequentially emit pulsed laser light. The laser light emitting circuit (4) is provided with: the plurality of LDs having anodes electrically connected to each other; a switching element (41) electrically connected to the cathode of each of the LDs; a drive circuit (42) for controlling the switching element; a series circuit in which a capacitor C and a resistor are electrically connected in series; an LD power supply input terminal (50) electrically connected to the common anode of the plurality of LDs and used for supplying charge to the capacitor; a drive circuit power supply input terminal (51) for supplying power to the drive circuit; and pulse signal input terminals (52a, 52b, 52c) each electrically connected to the drive circuit and used for inputting a pulse signal.
(FR)
L'invention concerne un circuit d'émission de lumière laser (4) pour amener un réseau de diodes laser (1) comprenant une pluralité de diodes laser (1a, 1b, 1c) à émettre simultanément ou séquentiellement une lumière laser pulsée. Le circuit d'émission de lumière laser (4) comprend : la pluralité de diodes laser ayant des anodes connectées électriquement les unes aux autres ; un élément de commutation (41) connecté électriquement à la cathode de chacun des diodes laser ; un circuit d'attaque (42) pour commander l'élément de commutation ; un circuit série dans lequel un condensateur C et une résistance sont connectés électriquement en série ; une borne d'entrée d'alimentation électrique de diode laser (50) électriquement connectée à l'anode commune de la pluralité de diodes laser et utilisée pour fournir une charge au condensateur ; une borne d'entrée d'alimentation électrique de circuit d'attaque (51) pour fournir de l'énergie au circuit d'attaque ; et des bornes d'entrée de signal d'impulsion (52a, 52b, 52c) connectées chacune électriquement au circuit d'attaque et utilisées pour entrer un signal d'impulsion.
(JA)
複数のLD(1a、1b、1c)からなるLDアレイ(1)に、同時又は順次にパルス状のレーザ光を放射させるレーザ発光回路(4)を提供する。レーザ発光回路(4)は、アノードが互いに電気的に接続された複数のLDと、各LDのカソードに電気的に接続されたスイッチング素子(41)と、スイッチング素子を制御する駆動回路(42)と、コンデンサCと抵抗とが電気的に直列接続された直列回路と、複数のLDの共通のアノードに電気的に接続され、コンデンサに電荷を供給するためのLD電源入力端子(50)と、駆動回路に電力を供給する駆動回路電源入力端子(51)と、駆動回路のそれぞれに電気的に接続され、パルス信号を入力するパルス信号入力端子(52a、52b、52c)とを備える。
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Latest bibliographic data on file with the International Bureau