Abstract: An electrostatic discharge (ESD) circuit includes a first ESD detection circuit, a first discharging circuit and a first ESD assist circuit. The first ESD detection circuit is coupled between a first node having a first voltage and a second node having a second voltage. The first discharging circuit includes a first transistor. The first transistor has a first gate, a first drain, a first source and a first body terminal. The first gate is coupled to the first ESD detection circuit by a third node. The first drain is coupled to the first node. The first source and the first body terminal are coupled together at the second node. The first ESD assist circuit is coupled between the second and third node, and configured to clamp a third voltage of the third node at the second voltage during an ESD event at the first or second node.

Abstract: Embodiments of the disclosure provide a filter structure. A second porous film having a plurality of second holes is disposed on a first porous film having a plurality of first holes. The second holes are smaller than the first holes. The filter structure is dried by an easy and power-saving method such as compression.

Abstract: A filtration dehydration apparatus, which comprises: a filter, composed of a filtration layer and an absorption layer while allowing the filtration layer that is orientated facing toward the absorption layer to be a first side, and allowing a surface of the absorption layer that is orientated facing toward the filtration layer to be a second side; a supporting structure, for supporting and fixedly securing the filter; a solid waste collector, for collecting solid object left on the first side; and an extrusion unit, for pressing the absorption layer to squeeze out water in the absorption layer; wherein the first side is provided for a solid-liquid mixture to be placed thereon so as to allow the liquid containing in the solid-liquid mixture to flow into the absorption layer through the filtration layer while enabling solid objects in the solid-liquid mixture to be filtered out and thus left on the first side.

Abstract: Embodiments of the disclosure provide a filter structure. A second porous film having a plurality of second holes is disposed on a first porous film having a plurality of first holes. The second holes are smaller than the first holes. The filter structure is dried by an easy and power-saving method such as compression.

Abstract: A filtration dehydration apparatus, comprises: a filter, having a filtration layer and an absorption layer while allowing a surface of the filtration layer opposite to the absorption layer to be a first side of the filter, and allowing a surface of the absorption layer opposite to the filtration layer to be a second side of the filter; a supporting structure, for supporting and fixedly secured the filter; a solid collector, for collecting any solid object left on the first side; and an extrusion unit, for pressing the absorption layer so as to squeeze liquid containing in the absorption layer out of the same; wherein the first side is provided for a solid-liquid mixture to be placed thereon for allowing the liquid containing therein to flow into the absorption layer through the filtration layer while enabling any solid object filtered out and thus left on the first side.

Abstract: The invention provides a filter structure. A second porous film having a plurality of second holes is disposed on a first porous film having a plurality of first holes. The second holes are smaller than the first holes. The filter structure is dried by an easy and power-saving method such as compression.

Abstract: A laser extender is provided for accurately elongating a reference line. The laser extender includes a housing, a battery set, and a laser unit. The housing has an external basic flat plane for resting upon a flat surface and having a straight edge that is adapted to be aligned with a reference line, an internal accommodating space, and a plurality of through holes for accessing the internal accommodating space from the exterior of the housing. The battery set is provided inside the internal accommodating space. The laser unit, utilizing power provided by the battery set, is located inside the internal accommodating space for generating a spanning plane laser beam perpendicular to the basic flat plane of the housing and for extending the reference line defined by the straight edge. In addition, the laser extender can engage a beam leveler for enhancing the leveling ability of the laser extender.

Abstract: An apparatus for measuring the speed of an object includes a first laser source for emitting a first laser plane at an intended path, and a second laser source for emitting a second laser plane at the intended path, with the second laser source positioned from the first laser source at a known distance. The apparatus further includes a detector system positioned to receive a first laser light and a second laser light that have been reflected from the first laser plane and the second laser plane, respectively, upon reflection of the first and second laser planes off the object. The detector system generates a first pulse signal and a second pulse signal, respectively, in response to the receipt of the first and second laser lights, respectively. The apparatus also includes a signal processing circuit coupled to the detector system for calculating the speed of an object passing through the intended path based on the first and second pulse signals generated by the detector system.

Abstract: A 3D laser leveler is provided for accurately locating distant parallel or extension lines. The 3D laser leveler has a base block and a rotator. The base block provides a base plane for resting upon a flat surface when in use, a first leveling unit for examining the leveling status of the base plane, and a pivot mechanism. The rotator is rotatably connected to the base block and rotatable around the pivot mechanism, and includes a housing for providing an internal accommodating space, a battery set and a laser unit received inside the accommodating space. The laser unit uses power provided by the battery set for generating a spanning plane laser beam that can be utilized to locate a spatial extension or a perpendicular line. In addition, a joining bracket can be included separately to connect the 3D laser leveler and a conventional beam leveler.

Abstract: A laser pointer having a laser generating loop formed of a metal barrel, a metal clip, a metal rear end cap, a series of battery cells, a laser generating unit and a signal line, and controlled by an electronic switch to emit a laser beam, the electronic switch being switched on when the user holds the metal rear end cap in hand and touching the metal clip with one finger, the electronic switch being switched off when the finger is removed from the metal clip.

Abstract: A laser diode mounting structure is provided that includes a base member, which can be a metal substrate or a diode, a metal binder, and a laser diode having a laser beam emitter. The laser diode is mounted on the base member over the metal binder, and welded to the base member by melting the metal binder. The metal binder may be a metal powder or a thin metal film.

Abstract: A laser sight assembly comprising a casing adapted for fixing to a gun, etc., a socket member mounted in the casing, and a laser module mounted in the socket member and controlled to emit a laser beam for guiding the eye, wherein the casing is comprised of two symmetrical shells connected together by screws and defining a ball socket. The socket member is a hollow, spherical, split socket turned in the ball socket and positioned at the designed angle within the casing by a frictional force. The laser module has a detachable power control device fastened thereto by a screw joint for operation control, and is turned with the socket member within the ball socket to the desired angle.

Abstract: A dual-beam laser diode is provided and includes a base, a first laser diode mounted on the base and having a laser emitting body controlled to emit a laser beam, and a second laser diode mounted between the base and the first laser diode and having a laser emitting body. The second laser diode has a laser emitting body spaced from the laser emitting body of the first laser diode within the range of 3 .mu.m to 5 .mu.m, and controlled to emit a laser beam partially overlapped on the laser beam of the first laser diode. The laser beams of the first laser diode and second laser diode can have different wavelengths and light spot patterns.