OPTICAL PATH CONTROLLER AND DISPLAY DEVICE

• Main Author: TAKADA HIROYUKI
• Format: Patent
• Language: English; Japanese
• Published: 03.04.2023
• 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; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; DYNAMO-ELECTRIC MACHINES; ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; ELECTROGRAPHY; GENERATION; HOLOGRAPHY; OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS; OPTICS; PHOTOGRAPHY; PHYSICS; PICTORIAL COMMUNICATION, e.g. TELEVISION

To provide an optical path controller and a display device in which the manner of how an image outputted when an optical unit is made swing by a first shank and an image outputted when the optical unit is made swing by a second shank look like is uniformized, for suppressing decrease in image quality.SOLUTION: The present invention comprises: an optical unit which light enters; a swing unit having a first swing unit that supports the optical unit and a second swing unit that swingably supports the first swing unit by a first shank and which is swingably supported to a support unit by a second shank; a first actuator for causing the swing unit to swing around a first swing shaft that includes the first shank, with the first shank serving as a fulcrum; and a second actuator for causing the swing unit to swing around a second swing shaft that includes the second shank, with the second shank serving as a fulcrum. The first swing shaft intersects the second swing shaft, and torsional rigidity of the second shank is higher than the torsional rigidity of the first shank.SELECTED DRAWING: Figure 3 【課題】光路制御装置および表示装置において、第１軸部による光学部の揺動時に出画する画像と第２軸部による光学部の揺動時に出画する画像の見え方とを一様として画像品質の低下を抑制する。【解決手段】光が入射する光学部と、光学部を支持する第１揺動部と、第１揺動部を第１軸部により揺動自在に支持し、第２軸部により支持部に揺動自在に支持される第２揺動部と、を有する揺動部と、揺動部を第１軸部を支点とし、第１軸部を含む第１揺動軸を中心に揺動させる第１アクチュエータと、揺動部を第２軸部を支点とし、第２軸部を含む第２揺動軸を中心に揺動させる第２アクチュエータと、を備え、第１揺動軸は、第２揺動軸と交差し、第２軸部のねじり剛性は、第１軸部のねじり剛性より高い。【選択図】図３