发明申请
US20090237628A1 OPTICAL REFLECTION DEVICE AND IMAGE PROJECTOR INCLUDNG THE SAME
审中-公开
光学反射装置和图像投影仪包括它们
- 专利标题: OPTICAL REFLECTION DEVICE AND IMAGE PROJECTOR INCLUDNG THE SAME
- 专利标题(中): 光学反射装置和图像投影仪包括它们
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申请号: US12404518申请日: 2009-03-16
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公开(公告)号: US20090237628A1公开(公告)日: 2009-09-24
- 发明人: Shigeo Furukawa , Jirou Terada , Shinsuke Nakazono
- 申请人: Shigeo Furukawa , Jirou Terada , Shinsuke Nakazono
- 优先权: JP2008-069029 20080318
- 主分类号: G03B21/28
- IPC分类号: G03B21/28 ; G02B26/08
摘要:
An optical reflection device includes a mirror adapted to reflect light thereon, a first meander vibration beam supporting the mirror rotatably about the first rotation axis, a movable frame connected to the first meander vibration beam, a second meander vibration beam supporting the movable frame rotatably about a second rotation axis, and a supporter connected to the second meander vibration beam. The first meander vibration beam meanderingly extends along a first rotation axis, and has a first end and a second end opposite to the first end. The movable frame is connected to the second end of the first meander vibration beam. The second meander vibration beam extends meanderingly along the second rotation axis perpendicular to the first rotation axis, and has a third end and a fourth end opposite to the third end. The supporter is connected to the fourth end of the second meander vibration beam. The mirror is coupled to the movable frame only via the first meander vibration beam. This optical reflection device has a large angle by which the mirror rotates about the first rotation axis.
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