RETENTION MECHANISM, OPTICAL ENGINE, AND IMAGE PROJECTION DEVICE

• Main Authors: MASHITA ATSUSHI, FUJIOKA TETSUYA, MIKUTSU YASUNARI, SAITO YOSHITO, NISHI YUKIMI, NISHIMORI TAKEHIRO, KANAI HIDEO, HIRAMATSU TAKAHIRO, TSUCHIYA SATOSHI, MIKAWA AKIHISA
• Format: Patent
• Language: English; Japanese
• Published: 08.06.2017
• Subjects: ACCESSORIES THEREFOR; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USINGWAVES OTHER THAN OPTICAL WAVES; APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FORPROJECTING OR VIEWING THEM; CINEMATOGRAPHY; ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; ELECTROGRAPHY; HOLOGRAPHY; OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS; OPTICS; PHOTOGRAPHY; PHYSICS; PICTORIAL COMMUNICATION, e.g. TELEVISION

PROBLEM TO BE SOLVED: To provide a retention mechanism, an optical engine, and an image projection device that can provide good projection image quality.SOLUTION: A retention mechanism 49 comprises: a holding member (holding bracket) 54 that holds a curved surface mirror 56 in a concave surface shape provided on an optical engine of an image projection device; a housing 50 that holds the holding member 54; and a height adjustment mechanism 52 that is arranged between the holding member 54 and housing 50 and adjusts the height position of the curved surface mirror 56 with respect to the housing 50 through the holding member 54.SELECTED DRAWING: Figure 7 【課題】良好な投射画像品質を得ることができる、保持機構、光学エンジン、及び、画像投射装置を提供。【解決手段】保持機構４９は、画像投射装置の光学エンジンに設けられる凹面形状の曲面ミラー５６を保持する保持部材（保持ブラケット）５４と、保持部材５４を保持するハウジング５０と、保持部材５４とハウジング５０との間に配置され、保持部材５４を介して、ハウジング５０に対する曲面ミラー５６の高さ位置を調整する高さ調整機構５２と、を備える。【選択図】図７