Abstract: A portable electronic device at least includes a main body, a sliding cover, and an elastic assembly. The main body includes at least one sliding rod package. The sliding cover is disposed on the main body and is slidable between a closed position and a full-open position, and at least comprises one sliding rod. The sliding rods are slidably inserted into the sliding rod packages. The elastic assembly is connected to both the main body and the sliding cover to control the sliding cover at the closed position or the full-open position.

Abstract: A portable electronic device at least includes a main body, a sliding cover, and an elastic assembly. The main body includes at least one sliding rod package. The sliding cover is disposed on the main body and is slidable between a closed position and a full-open position, and at least comprises one sliding rod. The sliding rods are slidably inserted into the sliding rod packages. The elastic assembly is connected to both the main body and the sliding cover to control the sliding cover at the closed position or the full-open position.

Abstract: A portable electronic device includes a main body, a sliding cover, and a transmission assembly. The sliding cover is disposed on the main body in a manner such that the sliding cover can slide within a fixed range. The transmission assembly is connected to the main body and the sliding cover respectively, and includes a sliding bearing and a drive element. The sliding bearing includes a sliding sleeve, a plurality of rolling balls, and a rotating shaft. The sliding sleeve includes a plurality of grooves, the rotating shaft includes a plurality of dents, and the rolling balls are disposed in the dents and the grooves simultaneously. The drive element is connected to the rotating shaft. When the drive element is started, the rotating shaft is driven to rotate, and the sliding sleeve is pushed to move linearly via the movement of the rotating balls.

Abstract: The invention discloses a method and device for wavelength locking and spectrum monitoring. A grating is used to divide a portion of input optical signals into a plurality of light beams that further form distinct response curves after passing through an etalon. The distinct response curves are transduced into electrical signals by photo detectors to generate a feedback signal calculated by a servo system so as to lock the center wavelength and monitor the full width at half maximum (FWHM) of the input optical signals.

Abstract: The present invention discloses a method for finesse compensation in a Fabry-Perot device having a first reflector and a second reflector that are parallel. The method includes the following steps. Orthogonally arranging a plurality of first actuation elements at the periphery of the first reflector; electrically connecting the plurality of first actuating elements to a plurality of independent driving voltages; and controlling the plurality of independent driving voltages to drive the plurality of first actuation elements and then actuate the first reflector to tilt relative to the second reflector in two rotation degrees of freedom.

Abstract: The invention provides a tunable light source module, which includes a semiconductor light-emitting device, a tunable Fabry-Perot device for filtering the light emitted from the semiconductor light-emitting device and a reflector. By means of the reflector, the light filtered by the Fabry-Perot device will pass through the Fabry-Perot device again and then return to the semiconductor light-emitting device.