ILLUMINATING DEVICE AND METHOD FOR MANUFACTURING ILLUMINATING DEVICE

To provide an illuminating device that can project a desired projection pattern.SOLUTION: An illuminating device 10 includes a coherent light source 20, a shaping optical system 25 for shaping coherent light emitted from the coherent light source 20, and a diffractive optical element 30 including an...

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Bibliographische Detailangaben
Hauptverfasser:	NISHIO SHUMPEI, HATORI SHIGEKI, KURASHIGE MAKIO, ISHIDA KAZUTOSHI, TANABE HISAO, SHIMADA OSAMU, ISHIKAWA MIKIO
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	BLASTING FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMSTHEREOF HEATING LIGHTING LIGHTING DEVICES OR SYSTEMS THEREOF, BEING PORTABLE ORSPECIALLY ADAPTED FOR TRANSPORTATION MECHANICAL ENGINEERING NON-PORTABLE LIGHTING DEVICES STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHERARTICLES, NOT OTHERWISE PROVIDED FOR SYSTEMS THEREOF VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLEEXTERIORS WEAPONS
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Beschreibung
Zusammenfassung:	To provide an illuminating device that can project a desired projection pattern.SOLUTION: An illuminating device 10 includes a coherent light source 20, a shaping optical system 25 for shaping coherent light emitted from the coherent light source 20, and a diffractive optical element 30 including an uneven surface 31 for diffracting the coherent light shaped by the shaping optical system 25. The illuminating device 10 illuminates by using the coherent light diffracted by the uneven surface 31 of the diffractive optical element 30. The uneven surface 31 faces an enclosed space CR.SELECTED DRAWING: Figure 1A 【課題】所望の投影パターンを投影可能な照明装置を提供する。【解決手段】照明装置１０は、コヒーレント光源２０と、コヒーレント光源２０から放出されたコヒーレント光を整形する整形光学系２５と、整形光学系２５によって整形されたコヒーレント光を回折する凹凸面３１を含む回折光学素子３０と、を含んでいる。照明装置１０は、回折光学素子３０の凹凸面３１によって回折されたコヒーレント光を用いて照明する。凹凸面３１は、密閉された密閉空間ＣＲに面している。【選択図】図１Ａ