公开(公告)号：US10197788B2

公开(公告)日：2019-02-05

申请号：US14845280

申请日：2015-09-04

Applicant: QISDA OPTRONICS (SUZHOU) CO., LTD. ,  QISDA CORPORATION

Inventor： Li-Yen Hsu ,  Tsung-Hsun Wu ,  Ying-Fang Lin ,  Wen-Chung Ho ,  Chi-Hung Hsiao

IPC: G02B26/00 ,  G02B27/00 ,  G03B21/14 ,  G03B21/20 ,  G03B33/08

Abstract: A projector includes a color wheel module and an optical engine. The color wheel module includes a rotation device, a mount, a color wheel, and an optical sensor. The color wheel is fixed on a rotary part of the rotation device. The rotation device and the optical sensor are fixed on the mount. The mount has an anti-dust structure includes a curved surface that is opposite to a rotary surface of the rotary part and extends in a rotation direction of the rotary part. The curved surface and the optical sensor are arranged sequentially in the rotation direction. Either by shortening a distance between the curved surface and the rotary surface or by a guiding slot that is disposed beside or lower than the curved surface, dust deposited on the optical sensor can be reduced effectively.

公开(公告)号：US20150177911A1

公开(公告)日：2015-06-25

申请号：US14580232

申请日：2014-12-23

Applicant: QISDA OPTRONICS (SUZHOU) CO., LTD. ,  QISDA CORPORATION

Inventor： Chi-Hung Hsiao ,  Ying-Fang Lin

IPC: G06F3/042 ,  G02B26/08

CPC classification number: G06F3/0412 ,  G02B26/0833 ,  G06F3/0425 ,  G06F3/0426

Abstract: A touch projection system includes a light source device, a micromirror device, and an image-capturing device. The micromirror device can provide three reflection directions. The micromirror device can selectively reflect projection light emitted by the light source device in one of the reflection directions to project the reflected projection light onto a screen to form an image. The micromirror device also can reflect image light from the screen in another one of the reflection directions. Further, the micromirror device can reflect the image light from the screen in the other one of the reflection directions, which has a larger deflection angle, to be received by the image-capturing device, for example for determining a touch operation performed on the screen. Thereby, the limitation of structural interference by other components to the image-capturing device is reduced, so that the touch projection system can be assembled in a compact configuration.

Abstract translation: 触摸投影系统包括光源装置，微镜装置和图像捕获装置。 微镜装置可以提供三个反射方向。 微反射镜装置可以选择性地反射光源装置在反射方向之一中发射的投射光，以将反射的投射光投影到屏幕上以形成图像。 微镜装置还可以在另一个反射方向上从屏幕反射图像光。 此外，微镜装置可以反射来自图像捕获装置接收的具有较大偏转角的另一个反射方向上的屏幕的图像光，例如用于确定在屏幕上执行的触摸操作 。 因此，减少了其他部件对图像捕获装置的结构干扰的限制，使得触摸投影系统可以以紧凑的构造组装。

公开(公告)号：US20150177511A1

公开(公告)日：2015-06-25

申请号：US14580236

申请日：2014-12-23

Applicant: QISDA OPTRONICS (SUZHOU) CO., LTD. ,  QISDA CORPORATION

Inventor： Chi-Hung Hsiao ,  Ying-Fang Lin

IPC: G02B26/08 ,  G06F3/042 ,  G03B21/28

CPC classification number: G02B26/0833 ,  G02B5/04 ,  G02B17/04 ,  G02B27/126 ,  G03B21/10 ,  G03B21/28 ,  G06F3/0425

Abstract: A touch projection system includes a screen, an image-capturing device, a micromirror device, and a TIR prism disposed in front of the micromirror device. The TIR prism includes an optical path compensation structure or a hollowed channel, so that an image light from the screen, traveling through the TIR prism to be reflected by the micromirror device, can travel through the optical path compensation structure or the hollowed channel to avoid a probable optical path difference on the image light due to traveling through the TIR prism. Thereby, the invention can solve that a distortion may be induced in a touch image formed by the image-capturing device receiving the image light reflected by the micromirror device.

Abstract translation: 触摸投影系统包括设置在微镜装置前面的屏幕，图像捕获装置，微镜装置和TIR棱镜。 TIR棱镜包括光路补偿结构或中空通道，使得来自屏幕的图像光穿过TIR棱镜被微镜装置反射，可以穿过光路补偿结构或中空通道以避免 由于穿过TIR棱镜而导致的图像光的可能的光程差。 因此，本发明可以解决在由接收由微镜装置反射的图像光的图像捕获装置形成的触摸图像中可能引起失真。