公开(公告)号：EP2157441A1

公开(公告)日：2010-02-24

申请号：EP08765246.7

申请日：2008-06-06

Applicant: NHK Spring Co., Ltd.

Inventor： SHIGEMATSU, Ryohei ,  IMAMURA, Hiroshi ,  HIRATA, Takafumi

IPC: G01S7/48 ,  G02B26/10

CPC classification number: G01S17/42 ,  G01S7/481 ,  G01S7/4817 ,  G02B26/10

Abstract: To provide an optical scanning sensor (1) which performs an object detection with high accuracy by suppressing the mutual interference between scanning light and reflection light, the optical scanning sensor (1) comprises a light projecting unit (2, 5) that projects light, an optical scanning actuator (3) that emits the light from the light projecting unit (2, 5) via a reflecting mirror (33) and performs scanning with the light emitted by causing the mirror (33) to swing, and a light receiving unit (4, 6) that receives, via the mirror (33), reflection light by an external object of scanning light emitted by the optical scanning actuator (3). The mirror (33) includes a first surface (33a) that reflects the light projected by the light projecting unit (2, 5) and emits the light reflected outward as the scanning light, and a second surface (33b) that is parallel to and discontinuous in a reflection area with the first surface (33a) and reflects and emits the reflection light to the light receiving unit (4, 6).

Abstract translation: 为了提供一种光学扫描传感器（1），其通过抑制扫描光和反射光之间的相互干扰而以高精度进行物体检测，所述光学扫描传感器（1）包括投光单元（2,5） 光学扫描致动器（3），其经由反射镜（33）发射来自所述投光单元（2,5）的光，并且通过使所述反射镜（33）摆动而发射的光进行扫描;以及光接收单元 （4），其经由所述反射镜（33）接收由所述光扫描致动器（3）发射的扫描光的外部物体的反射光。 反射镜（33）包括反射由投光单元（2,5）投影的光并将其向外反射的光作为扫描光的第一表面（33a）和与第二表面（33b）平行的第二表面 在具有第一表面（33a）的反射区域中不连续地反射并将反射光发射到光接收单元（4,6）。

公开(公告)号：EP2154559A1

公开(公告)日：2010-02-17

申请号：EP08765008.1

申请日：2008-06-03

Applicant: NHK Spring Co., Ltd.

Inventor： SHIGEMATSU, Ryohei ,  IMAMURA, Hiroshi ,  HIRATA, Takafumi

IPC: G02B26/10 ,  G01S7/48

CPC classification number: G01S17/42 ,  G01S7/4817

Abstract: An object detector that ensures quietness at the time of operations and has excellent durability is provided. For this purpose, the object detector has a light projecting unit that projects light, a light scanning actuator that scans the light projected by the light projecting unit, and a light receiving unit that receives reflected light of the light scanned by the light scanning actuator. The light scanning actuator includes a plurality of plate springs, each plate spring having a thin-plate shape and one end in a longitudinal direction thereof being fixed; a movable part that is attached to the other ends in the longitudinal directions of the plate springs and is capable of moving in accordance with a change in shape of the plate springs; and an electromagnetic driving unit having a magnet that generates a magnetic flux, a yoke that forms a closed magnetic circuit together with the magnet and has a part being stacked on the magnet, and a coil that is held by the movable part and positioned in a gap between the magnet and the yoke such that an aperture plane thereof is substantially orthogonal to a stacking direction of the magnet and the yoke, the electromagnetic driving unit configured to drive the movable part by an electromagnetic force applied to the coil.

Abstract translation: 提供了一种确保操作时的安静性并具有优异的耐久性的物体探测器。 为此，物体检测器具有投射光的投光单元，扫描由投光单元投影的光的光扫描致动器和接收由光扫描致动器扫描的光的反射光的光接收单元。 光扫描致动器包括多个板簧，每个板簧具有薄板形状，并且其纵向方向上的一端被固定; 可移动部件，其沿着板簧的纵向方向附接到另一端，并且能够根据板簧的形状变化而移动; 以及具有产生磁通的磁体的电磁驱动单元，与磁体一起形成闭合磁路并具有堆叠在磁体上的部分的磁轭，以及由可动部保持并位于磁体中的线圈 所述磁体和所述磁轭之间的间隙使得其开口面大致垂直于所述磁体和所述磁轭的层叠方向，所述电磁驱动单元被构造成通过施加到所述线圈的电磁力来驱动所述可动部。

公开(公告)号：EP2154558A1

公开(公告)日：2010-02-17

申请号：EP08764917.4

申请日：2008-05-30

Applicant: NHK Spring Co., Ltd.

Inventor： SHIGEMATSU, Ryohei ,  IMAMURA, Hiroshi ,  HIRATA, Takafumi

IPC: G02B26/10 ,  H04N1/113

CPC classification number: G02B26/105 ,  H02K41/0358 ,  H04N1/1135 ,  H04N2201/0246 ,  H04N2201/02477 ,  H04N2201/02495

Abstract: To provide an optical scanning actuator that is capable of realizing widening of a light scanning angle and is excellent in durability, the optical scanning actuator includes a movable unit that supports an optical element, a plurality of leaf springs having a thin plate shape with one end portion being fixed and another end portion being attached to the movable unit, and an electromagnetic driving unit including a magnet, a yoke laminated on the magnet to form a closed magnetic circuit together with the magnet, and a coil held by the movable unit. The coil is positioned in a gap between the magnet and the yoke such that opening plane of the coil is substantially orthogonal to a laminating direction of the magnet and the yoke. The movable unit is driven by an electromagnetic force applied to the coil.

Abstract translation: 为了提供一种能够实现光扫描角度的扩大并且耐久性优异的光学扫描致动器，所述光学扫描致动器包括：可移动单元，其支撑光学元件;多个板簧，其具有薄板形状，一端 所述电磁驱动单元包括磁体，层叠在所述磁体上以与所述磁体一起形成闭合磁路的磁轭，以及由所述可移动单元保持的线圈。 线圈位于磁体和磁轭之间的间隙中，使得线圈的开口平面基本垂直于磁体和磁轭的层叠方向。 可移动单元由施加到线圈的电磁力驱动。