著者

池田 貴裕

出版者

一般社団法人照明学会

雑誌

照明学会誌 (ISSN:1349838X)

巻号頁・発行日

vol.98, no.10, pp.555-557, 2014-10-01

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High directional LED lighting has been developed as a parallel light source as a hologram reconstruction. High visibility can be obtained to have the light intensity distribution of the rectangular pseudo-parallel light using an expanded image from the emitter of the light source. It is possible to telecentric lighting by multi-dots pattern formation using a pseudo-parallel light. High stage effects can be obtained by linear pattern formation by oblique irradiation of pseudo-parallel light. It is useful as a safety aided by the linear pattern formation by the refractive optical element and a pseudoparallel light. High directional pattern formation LED lighting are beginning to be put to practical use in the industry various fields such as inspection, stage, building, road, safety, art, sightseeing, communication, laboratory and so on.