| 摘要 |
An apparatus for removing a speckle on a screen of a laser projection display is provided to remove the speckle by uniformly moving the screen with small rotation displacement by using a low speed motor. An apparatus for removing a speckle on a screen of a laser projection display includes a drive motor(20), an eccentric shaft module(30), and a plurality of rotation jig parts. The drive motor is axially engaged with the screen on an upper end of a Fresnel sheet of the screen. The eccentric shaft module is installed between the screen and the drive motor. The plurality of rotation jig parts support the Fresnel sheet at both sides and a lower end of the Fresnel sheet. The screen connected to the drive motor is a diffuser sheet. The eccentric shaft module includes a first shaft module and a second shaft module. The first shaft module has shaft holes disposed in a longitudinal direction at predetermined intervals. The second shaft module has a T-shaped body, and male threaded parts at both ends of the body engaged with the first shaft module. |
