发明名称 IMAGE PROJECTION DEVICE
摘要 An object is to provide a image projection device which has a small size but can project an image having a high image quality. To achieve the object, in an image projection device, a reflection part which reflects a light flux from a light source is, while being rotated around a first axis by non-resonance driving, rotated by resonance driving around a second axis which is substantially perpendicular to the first axis, and thereby the light flux is deflected in a two-dimensional direction. By controlling the rotation of the reflection part, a correction for suppressing an image distortion along one scanning direction on a projection surface, and a correction for keeping substantially constant a scanning speed of the light flux along the other scanning direction on the projection surface, are performed. Here, the relationship of 10°<&thetas;<70° is satisfied, where &thetas; represents an angle of inclination of the light flux, which is projected to the projection surface, toward the other scanning direction relative to a normal line of the projection surface, in a case where the reflection part is in a central position of the rotations around the first and second axes.
申请公布号 US2011141441(A1) 申请公布日期 2011.06.16
申请号 US200913059200 申请日期 2009.07.15
申请人 KONICA MINOLTA OPTO, INC. 发明人 KONNO KENJI;MIZUMOTO KENJI
分类号 G03B21/28 主分类号 G03B21/28
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