Invention Grant
- Patent Title: Optical reflection element
- Patent Title (中): 光反射元件
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Application No.: US14380308Application Date: 2013-04-24
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Publication No.: US09291815B2Publication Date: 2016-03-22
- Inventor: Toshiaki Horie , Soichiro Hiraoka , Shinsuke Nakazono , Kazuki Komaki
- Applicant: PANASONIC CORPORATION
- Applicant Address: JP Osaka
- Assignee: Panasonic Intellectual Property Management Co., Ltd.
- Current Assignee: Panasonic Intellectual Property Management Co., Ltd.
- Current Assignee Address: JP Osaka
- Agency: McDermott Will & Emery LLP
- Priority: JP2012-105721 20120507
- International Application: PCT/JP2013/002771 WO 20130424
- International Announcement: WO2013/168386 WO 20131114
- Main IPC: G02B26/08
- IPC: G02B26/08 ; G02B26/10

Abstract:
An optical reflection element includes a fixed portion having a pair of sides opposite to each other, a pair of first vibration portions having one ends each connected to respective one of the sides of the fixed portion, a pair of connection portions each connected to respective one of another ends of the first vibration portions, a movable frame rotatably supported by another ends of the first vibration portions via the connection portions, a pair of second vibration portions having one ends each connected to respective one of a pair of sides of the movable frame, and a mirror rotatably connected to another ends of the second vibration portions. The second vibration portions are configured to transmit a rotational vibration about a rotation axis to the mirror. The connection portions are connected to the movable frame in a direction of the rotation axis. The connection portions are connected to a part of the movable frame at which a displacement of the movable frame due to the rotational vibration of the mirror has a minimum amount. This optical reflection element reduces unnecessary vibration, and projects clear images.
Public/Granted literature
- US20150036201A1 OPTICAL REFLECTION ELEMENT Public/Granted day:2015-02-05
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