| 摘要 |
<p>PROBLEM TO BE SOLVED: To facilitate angle adjustments of an angle adjustment object unit.SOLUTION: An angle adjustment mechanism 5 adjusts a relative angle between an angle adjustment object unit (a projection device 2) and a frame 4 supporting the angle adjustment object unit, and the angle adjustment mechanism 5 comprises: a rotation fulcrum part (rotating shaft) that rotatably holds other end of the angle adjustment object unit so that one end thereof rotates relative to the frame 4; a joint unit 52 that joints one end of the angle adjustment object unit to the frame 4; and a movement mechanism that moves the joint unit 52 in a prescribed linear direction relative to the frame 4. The joint unit 52 has an engagement unit 55 engaging with the angle adjustment object unit, which has a slide unit 56 that engages with the engagement unit 55. The engagement unit 55 is configured to slide the slide unit in conjunction to movement of the joint unit 52 by the movement mechanism, which in turn allows angle adjustments of the angle adjustment object unit to be facilitated.</p> |
