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1. (WO2018003400) IMAGE PROJECTION DEVICE

Pub. No.:    WO/2018/003400    International Application No.:    PCT/JP2017/020560
Publication Date: Fri Jan 05 00:59:59 CET 2018 International Filing Date: Sat Jun 03 01:59:59 CEST 2017
IPC: G03B 21/14
G02B 17/08
G03B 21/00
G03B 21/28
H04N 5/74
Applicants: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
パナソニックIPマネジメント株式会社
Inventors: ONISHI Hideo
大西 英夫
Title: IMAGE PROJECTION DEVICE
Abstract:
Disclosed is an image projection device that projects an image to a projection surface, said image projection device being provided with an image forming element, a refractive optical unit, and a reflective optical system unit. The image forming element forms, on the basis of an image signal, an image to be projected to the projection surface. The refractive optical unit has a refractive optical system that includes a plurality of lenses which guide, to the direction of the projection surface, light of the image formed by the image forming element. A reflective optical system has: a reflective optical system, which includes a first mirror that reflects the light guided by the refractive optical system, and a second mirror that reflects, toward the projection surface, light reflected by the first mirror; and a blocking section (20), which includes a blocking surface that is provided at a position of blocking a part of the light, which has been generated by the refractive optical unit, and which has passed between the first mirror and the second mirror.