IMAGE PROJECTION DEVICE AND IMAGE PROJECTION METHOD

• Main Author: HOSOI NOBUHIRO
• Format: Patent
• Language: English; Japanese
• Published: 04.07.2019
• 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; PHOTOGRAPHY; PHYSICS; PICTORIAL COMMUNICATION, e.g. TELEVISION

To provide an image projection device that can suppress the occurrence of trapezoidal distortion even if a user inclines the image projection device.SOLUTION: An image projection device comprises a detection part detecting the inclination of the image projection device, and a movement control part changing a relative position of a light modulation element to a projection lens. When the detection part detects an inclination of the image projection device, the movement control part moves the light modulation element in a direction vertical to an optical axis of the projection lens to thereby change the relative position of the light modulation element to the projection lens.SELECTED DRAWING: Figure 17 【課題】ユーザが画像投影装置を傾けた場合であっても、台形歪みが生じることを抑制する画像投影装置を提供する。【解決手段】画像投影装置の傾きを検知する検知部と、光変調素子と投影レンズとの相対位置を変化させる移動制御部とを備え、検知部により画像投影装置の傾きが検知された場合、移動制御部により、光変調素子を投影レンズの光軸に垂直な方向に移動させることにより、光変調素子と投影レンズとの相対位置を変化させる。【選択図】図１７