To reduce the occurrence of wasteful light.SOLUTION: A light source device comprises: a light source unit which emits light; a light scanning unit which scans the light to draw a display image; a light amount detection unit which detects a light amount of the light; a storage unit which stores a plurality of pieces of data indicating a relation between a control current supplied to the light source unit and the light amount; a control unit which controls the control current on the basis of the light amount such that the control current is determined on the basis of the data; a specific condition setting unit which sets a specific condition for specifying the data to be the update object among the plurality of pieces of data; and an updating unit which updates the data on the basis of the specific condition.SELECTED DRAWING: Figure 1
【課題】 無駄な光の発生を少なくする。【解決手段】 本発明による、光源装置は、光を出射する光源部と、前記光を走査して表示画像を描画する光走査部と、前記光の光量を検出する光量検出部と、前記光源部に供給される制御電流と前記光量との関係を示すデータを複数記憶する記憶部と、前記光量に基づいて、前記データに基づいて定まる前記制御電流となるように、前記制御電流を制御する制御部と、前記データのうち、更新対象となる前記データを特定する特定条件を設定する特定条件設定部と、前記特定条件に基づいて、前記データを更新する更新部とを備える。【選択図】図1
LIGHT SOURCE DEVICE, IMAGE DISPLAY DEVICE, HEAD-UP DISPLAY APPARATUS AND MOVABLE BODY
光源装置、画像表示装置、ヘッドアップディスプレイ装置、及び、移動体
2021-09-13
Patent
Electronic Resource
Japanese
IPC: | G02B Optische Elemente, Systeme oder Geräte , OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / 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 |
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