HEAD-UP DISPLAY

To reduce performance deterioration of a hologram generated caused by deviations in an incident angle and a reproduction wavelength.SOLUTION: A head-up display (1) mounted on a moving body, comprises a hologram (3) provided in front of an occupant, and an image light irradiation unit (2) that projec...

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Bibliographische Detailangaben
1. Verfasser:	NOMOTO TAKAYUKI
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS INVEHICLES ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OFTRANSMISSIONS IN VEHICLES ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GASEXHAUST OR FUEL SUPPLY OF PROPULSION UNITS, IN VEHICLES AUXILIARY DRIVES FOR VEHICLES CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHIC PROCESSES OR APPARATUS HOLOGRAPHY INSTRUMENTATION OR DASHBOARDS FOR VEHICLES OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS PERFORMING OPERATIONS PHOTOGRAPHY PHYSICS TRANSPORTING VEHICLES IN GENERAL
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Beschreibung
Zusammenfassung:	To reduce performance deterioration of a hologram generated caused by deviations in an incident angle and a reproduction wavelength.SOLUTION: A head-up display (1) mounted on a moving body, comprises a hologram (3) provided in front of an occupant, and an image light irradiation unit (2) that projects light toward the hologram. The hologram is volumetric, and contains a plurality of coherent fringes (31 to 35) with different coherent fringe spacing (d1 to d5).SELECTED DRAWING: Figure 7 【課題】入射角度や再生波長のズレに起因して生じうるホログラムの性能低下を低減する。【解決手段】移動体に搭載されるヘッドアップディスプレイ（１）であって、乗員の前方に設けられるホログラム（３）と、ホログラムに向けて光を投射する画像光照射部（２）とを含み、ホログラムは、体積型であり、異なる干渉縞間隔（ｄ１～ｄ５）の複数の干渉縞（３１～３５）を含む、ヘッドアップディスプレイが開示される。【選択図】図７