公开(公告)号：US09383591B2

公开(公告)日：2016-07-05

申请号：US13975429

申请日：2013-08-26

Applicant: STMicroelectronics S.r.I.

Inventor： Fabio Pasolini

IPC: G03B21/28 ,  H04N9/31 ,  G02B27/64 ,  G03B21/14

CPC classification number: G02B27/646 ,  G03B21/142 ,  G03B21/28 ,  H04N9/312 ,  H04N9/3129 ,  H04N9/3173 ,  H04N9/3185

Abstract: A pico-projector device includes a light source operable to generate a light beam as a function of an image to be generated, a mirror mechanism operable to direct the light beam towards a displaying surface, and a driving circuit that supplies driving signals for controlling movement of the mirror mechanism. The driving circuit includes a compensation stage that receives angular velocity signals from a gyroscopic sensor coupled to the pico-projector device and generates the driving signals as a function of the angular velocity signals, thereby stabilizing the image projected on the displaying surface with respect to undesired movements of the pico-projector device.

Abstract translation: 微型投影仪装置包括可用于产生作为要生成的图像的函数的光束的光源，可操作以将光束引向显示表面的反射镜机构，以及提供用于控制运动的驱动信号的驱动电路 的镜子机制。 驱动电路包括补偿级，其接收来自耦合到微型投影仪装置的陀螺仪传感器的角速度信号，并且产生作为角速度信号的函数的驱动信号，从而使投影在显示表面上的图像相对于不期望的 微型投影仪设备的运动。