Abstract: An on-road energy conversion and vibration absorber apparatus receives the kinetic energy from moving vehicles and pedestrians when being weighed down, and converts the received kinetic energy into a potential energy using a restorable elastic element compressing a fluid thereby storing the potential energy in a pressure chamber, and then conducting the pressurized fluid to pass though a check valve along a conduit and drive a vane wheel by releasing its potential energy. The vane wheel in turn drives a generator to generate electric energy, and the vibration of the vehicles is alleviated by cushion effect provided by the apparatus.

Abstract: A displaying method of a digital light processing (DLP) projector includes the steps of: providing a light modulation device including a driver printed circuit board and a digital micromirror device (DMD), wherein the DMD includes a plurality of micromirrors each having a first stable state and a second stable state, and a predetermined light incident direction, the DMD is installed on the driver printed circuit board; providing an illumination light beam being incident on the DMD along an operating direction different from the predetermined light incident direction, modulating the illumination light beam to an imaging light beam by the DMD and directing the imaging light beam to a projection lens for projecting an image. A DLP projector made thereby has a relatively lower manufacturing cost.