To improve light use efficiency while reducing cost with a simple configuration.SOLUTION: A liquid crystal luminaire comprises: a liquid crystal panel; a light source that irradiates the liquid crystal panel with light; a first light guide unit that has a first diffusion unit diffusing the irradiation light from the light source and a reflection surface parallel to the optical axis connecting the liquid crystal panel and the light source, and has the light source provided at one end and diffuses and guides the irradiation light from the light source; a second light guide unit that is formed to expand from the light guide toward the liquid crystal panel and guides the light diffused by the first diffusion unit of the first light guide unit provided at one end; a light condensation unit that is provided at the other end of the second light guide unit and condenses the light guided by the second light guide unit; and a second diffusion unit that diffuses the light condensed by the light condensation unit toward the liquid crystal panel.SELECTED DRAWING: Figure 1
【課題】簡易な構成でコスト低減を図りつつ、光利用効率を向上させること。【解決手段】液晶照明装置は、液晶パネルと、液晶パネルに対し光を照射する光源と、光源が照射する光を拡散する第1拡散部と、液晶パネルと光源とを結ぶ光軸に対して平行な反射面と、を有し、一端に光源が設けられ光源が照射する光を拡散および導光する第1導光部と、光源側から液晶パネル側に行くに従って広がるように形成され、一端側に設けられた第1導光部の第1拡散部により拡散された光を導光する第2導光部と、第2導光部の他端側に設けられ、該第2導光部により導光された光を集光する集光部と、集光部により集光された光を液晶パネルに対して拡散する第2拡散部と、を備える。【選択図】図1
LIQUID CRYSTAL LUMINAIRE, HEAD-UP DISPLAY, AND ILLUMINATION METHOD
液晶照明装置、ヘッドアップディスプレイ、及び照明方法
2019-02-07
Patent
Electronic Resource
Japanese
IPC: | G02F DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING,... , Vorrichtungen oder Anordnungen, deren optische Arbeitsweise durch Änderung der optischen Eigenschaften des Mediums der Vorrichtungen oder Anordnungen geändert wird zum Steuern der Intensität, Farbe, Phase, Polarisation oder der Richtung von... / 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 / F21S Ortsfeste Leuchten , NON-PORTABLE LIGHTING DEVICES / F21V FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF , Funktionsmerkmale oder Einzelheiten von Leuchten oder Beleuchtungssystemen / G02B Optische Elemente, Systeme oder Geräte , OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS |
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