公开(公告)号：EP3226058A1

公开(公告)日：2017-10-04

申请号：EP16190250.7

申请日：2016-09-22

Applicant: STMicroelectronics Ltd

Inventor： DUVDEVANY, Offir ,  SHARON, Dadi ,  SOURANI, Sason

IPC: G02B26/08 ,  G02B26/10 ,  B81B3/00

CPC classification number: G02B26/0833 ,  B81B3/0048 ,  G02B7/1821 ,  G02B26/0841 ,  G02B26/105 ,  G03B21/008

Abstract: The method for controlling an angular position of a MEMS mirror includes: applying a first driving moment to the MEMS mirror to generate a rotational scanning movement of the mirror; and, at a zooming instant, applying a second driving moment to the MEMS mirror, wherein the second driving moment is equal to the first driving moment plus an extra moment. The extra moment may be a DC offset. After a transient period of time from zooming instant, a third driving moment M 2 = k θ̇ 2 t is applied. The first and third driving moment are variable linearly with time. The driving moments are applied to torsional springs of the mirror.

Abstract translation: 用于控制MEMS反射镜的角位置的方法包括：向MEMS反射镜施加第一驱动力矩以产生反射镜的旋转扫描运动; 并且在变焦时刻向MEMS反射镜施加第二驱动时刻，其中第二驱动时刻等于第一驱动时刻加上额外时刻。 额外的时刻可能是直流偏移。 在从变焦瞬间过渡一段时间之后，施加第三个驱动时刻M2 =kθ̇2t。 第一和第三驱动时刻随时间线性变化。 驾驶时刻应用于镜子的扭转弹簧。

公开(公告)号：EP3383032A1

公开(公告)日：2018-10-03

申请号：EP17186470.5

申请日：2017-08-16

Applicant: STMicroelectronics Ltd

Inventor： ADLER, Gilad ,  SOURANI, Sason

IPC: H04N9/31

CPC classification number: H04N7/0127 ,  G02B26/0833 ,  G02B26/101 ,  G02B26/105 ,  G09G3/02 ,  G09G2310/0224 ,  H04N9/3129 ,  H04N9/3161 ,  H04N9/3164 ,  H04N9/3188

Abstract: An electronic device includes a first laser source (101a) configured to project a first laser beam (107a), and a second laser source (101b) configured to project a second laser beam (107b) in alignment with the first laser beam in a first direction but at an angle with respect to the first laser beam in a second direction. A mirror apparatus (110) is positioned so as to reflect the first and second laser beams. Control circuitry (130) is configured to control the mirror apparatus to simultaneously reflect the first and second laser beams in a first scan pattern to form an first image, the first image formed from the first scan pattern having a number of scan lines greater than two times a horizontal resonance frequency at which the mirror apparatus oscillates divided by a desired frame rate of the first image.

公开(公告)号：EP3290985B1

公开(公告)日：2019-12-11

申请号：EP17162674.0

申请日：2017-03-23

Applicant: STMicroelectronics Ltd

Inventor： SOURANI, Sason

IPC: G02B26/08 ,  G09G3/34 ,  G09G3/02 ,  H02P25/032 ,  G01D5/241

公开(公告)号：EP3290985A1

公开(公告)日：2018-03-07

申请号：EP17162674.0

申请日：2017-03-23

Applicant: STMicroelectronics Ltd

Inventor： SOURANI, Sason

IPC: G02B26/08 ,  G09G3/34 ,  G09G3/02 ,  H02P25/032 ,  G01D5/241

Abstract: The present invention provides a system and method for controlling operation of a resonance MEMS mirror (1901). The system and method includes activating either an in-plane or staggered MEMS mirror via sets of activation pulses applied to the MEMS mirror, detecting (1915) current at the MEMS mirror, generating a window for detecting a change in a direction of the current at the MEMS mirror, and terminating the window and the activation pulse if a change in the current direction is detected during the window. In some embodiments, two sets of activation pulses are applied to the MEMS mirror.

Abstract translation: 本发明提供了用于控制共振MEMS反射镜（1901）的操作的系统和方法。 该系统和方法包括通过施加到MEMS反射镜的激活脉冲组来激活平面内或交错的MEMS反射镜，检测（1915）MEMS反射镜处的电流，生成用于检测电流方向 MEMS反射镜，并且如果在窗口期间检测到电流方向的变化，则终止窗口和激活脉冲。 在一些实施例中，将两组激活脉冲施加到MEMS反射镜。