PROBLEM TO BE SOLVED: To provide a light source device capable of generating desired color light.SOLUTION: A light source device 300 includes multiple semiconductor lasers 111R, 111G, 111B, combining means including a reflection mirror 118 for combining light from the semiconductor lasers and an optical path combining element 114, a light-receiving system including a light-receiving element 117a for receiving light from the semiconductor lasers, a wavelength estimation unit 700a(acquisition means) for acquiring the wavelength of light from the semiconductor lasers, a monitor luminous quantity target value setting unit 700b (setting means) for setting the target value of monitor luminous quantity (received light quantity) of a light-receiving system for generating desired color light based on the wavelength, and an injection current setting unit 700c (adjustment means) for adjusting the received luminous quantity of the semiconductor lasers so that the monitor luminous quantity reaches the target value.SELECTED DRAWING: Figure 6
【課題】所望の色光を生成することができる光源装置を提供する。【解決手段】光源装置300は、複数の半導体レーザ111R、111G、111Bと、半導体レーザからの光を合成する反射ミラー118及び光路合成素子114を含む合成手段と、半導体レーザからの光を受光する受光素子117aを含む受光系と、半導体レーザからの光の波長を取得する波長推定部700a(取得手段)と、該波長に基づいて、所望の色光を生成するための受光系のモニタ光量(受光光量)の目標値を設定するモニタ光量目標値設定部700b(設定手段)と、半導体レーザの発光光量をモニタ光量が目標値となるよう調整する注入電流設定部700c(調整手段)と、を備えている。【選択図】図6
LIGHT SOURCE DEVICE, IMAGE DISPLAY UNIT AND OBJECT DEVICE
光源装置、画像表示装置及び物体装置
2018-03-15
Patent
Electronic Resource
Japanese
IPC: | H01S Vorrichtungen, die stimulierte Emission verwenden , DEVICES USING STIMULATED EMISSION / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / G02B Optische Elemente, Systeme oder Geräte , OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS / G09G Anordnungen oder Schaltungen zur Steuerung oder Regelung von Anzeigevorrichtungen mit statischen Mitteln zur Darstellung veränderlicher Informationen , ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION |
LIGHT SOURCE UNIT, IMAGE DISPLAY DEVICE, AND OBJECT DEVICE
European Patent Office | 2018
|LIGHT SOURCE DEVICE, IMAGE DISPLAY DEVICE, AND OBJECT DEVICE
European Patent Office | 2017
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