Abstract: A photoelectric converter includes a circuit board, a laser diode electrical mounted on the circuit board, a supporting frame, an optical transmission member mounted on the supporting frame, a beam splitting assembly and an optical sensor positioned beside the beam splitting assembly. The laser diode, the beam splitting assembly and the optical sensor are received in a space cooperatively defined by the supporting frame and the optical transmission member. The laser diode emits optical signals. A part of optical signals is refracted by the beam splitter and transmitted to the optical transmission member, and the other part of optical signals is reflected by the beam splitter to the optical sensor.

Abstract: An LED element includes an LED and a lens located over the LED. The LED has a rectangular light outputting face. The lens has a light outputting face. The light outputting face of the lens includes a first light outputting portion and two second light outputting portions. The first light outputting portion performs a convergent function to light output along a long side of the rectangular light outputting face of the LED. The second light outputting portion performs a divergent function to the light output along a short side of the rectangular light outputting face of the LED. The light emitted from the lens has an energy intensity distribution the same along each of two perpendicular directions of the long side and short side of the rectangular light outputting face.

Abstract: An optical connector includes a first printed circuit board (PCB), a second PCB and an optical-electric coupling element. The first PCB includes a supporting surface. The second PCB includes a first surface. The second PCB is positioned on the supporting surface and electrically connected to the first PCB, with the first surface being perpendicular to the supporting surface. The second PCB further includes at least one laser diode and at least one photo diode. The at least one laser diode and the at least one photo diode are positioned on the first surface. The optical-electric coupling element is positioned on the first surface and receives the at least one laser diode and the at least one photo diode. The optical-electric coupling element includes at least two coupling lenses. Each of the at least two coupling lenses aligns with a laser diode or a photo diode.

Abstract: An photoelectric convertor comprises an optical coupler, a circuit board and two restricting posts fixed on the circuit board. The optical coupler defined two restricting grooves passing through its bottom surface and top surface. When the optical coupler is positioned on the circuit board, the two restricting posts are respectively engaged in the two restricting grooves. Each restricting groove has a sidewall opposite to a front surface of the optical coupler.

Abstract: An exemplary optical fiber connector includes a first surface and a second surface at opposite sides thereof, and a third surface connected between the first surface and the second surface. Two projections are formed on the first surface, and extend a same distance along a direction perpendicular to the first surface. The optical fiber connector defines a fixing recess extending from the second surface towards the first surface and being open at the third surface. The fixing recess has a first inner surface and a second inner surface. The first inner surface is parallel to the third surface. The second inner surface is parallel to the first surface. The first inner surface defines a number of receiving grooves. The optical fiber connector defines a number of receiving holes extending from the second inner surface to the first surface. The receiving holes are aligned and communicated with the receiving grooves, respectively.

Abstract: An optical coupler connector and a photoelectric convertor use an optical coupler to coupler light beams emitted from the light emitters to optical fibers or to couple light beams coming from optical fibers to light receivers. The optical coupler includes a main body and an insertion member that can be releasably connected with the main body, and the optical coupler can use various optical paths.

Abstract: An optical fiber connector includes a main body, a number of lens portions, a number of restricting members, and a number of optical fibers. The main body includes a first side surface and a second side surface opposite to the first side surface. The main body defines a cavity between the first and second side surfaces, and a number of accommodating holes extending through the first side surface and communicating with the cavity. The lens portions are positioned on the second side surface, and each lens portion is coaxial with a corresponding accommodating hole. The restricting members are arranged in the cavity. The optical fibers are fixed in the accommodating holes. Each optical fiber is restricted by a corresponding restricting member and an end of each optical fiber is fixed at the focal plane of a corresponding lens portion.

Abstract: An optical communication device includes an optical fiber connector for positioning at least one optical fiber, a lens member for optically coupling the optical fiber with an photoelectric member, at least two metal engaging posts positioned on one of the optical fiber connector and the lens member, and at least two metal bushing members positioned on the other of the optical fiber connector and the lens member. The bushing members correspond to the engaging posts. Each bushing member defines an engaging hole for engaging with a corresponding engage post. The optical fiber connector is connected and aligned with each other by an engagement between the engaging posts and the bushing member.

Abstract: An optical fiber connector includes a first surface, a second surface parallel with the first surface, a third surface, and a fourth surface parallel with the third surface. A groove and a fiber hole are defined in the optical fiber connector. The groove includes a bottom surface and a side surface connected with the bottom surface. A distance between the bottom surface and the bottom of the fiber hole is b. The optical fiber connector follows the relationship: d?b??/tg?, a is equal to the length of the optical fiber extending out of the fourth surface, d is equal to the diameter of an optical fiber for being received in the fiber hole, and ? is equal to a half of an angle of a laser which is used to cut the optical fiber.

Abstract: A circular LED light guide includes a top wall and a peripheral side wall; the top wall and the peripheral side wall cooperatively form a hollow receiving space. The hollow receiving space is used for receiving an LED therein. The top wall includes a light incident surface inside of the receiving space, and an exterior light output surface. The light incident surface includes a concave lens surface formed in a central area of the light incident surface, and the light output surface includes a convex lens surface formed in a central area of the light output surface. A central optical axis of the concave lens surface is aligned with a central optical axis of the convex lens surface. An LED module and a direct-type LED TV using the LED light guide are also provided.

Abstract: An exemplary lens for diffusing light from an LED to a diffusion plate of an LCD module, includes a light-refraction portion and a plurality of legs extending from the light-refraction portion. The light-refraction portion includes a light-incident face facing the LED and a light-emergent face opposite to the light-incident face and facing the diffusion plate. The light-incident face defines a plurality of dots therein. Each dot is a depression and has an inner face concaved from the light-incident face.

Abstract: An optical plug includes a connector body. The connector body defines a receiving hole with a opening, a hollow pusher extends from the connector body and surrounding the receiving hole; and a number of lenses are arranged in the receiving hole. The connector body includes a first side surface and a second side surface, the first side surface defines a reflecting groove and the reflecting groove includes a reflecting surface, an included angle between the reflecting groove surface and the first side surface is 135 degrees. A number of lenses arrange on the second side surface to receive signal reflecting by the reflecting surface; and two elastic shielding plates have fixed ends fixed to opposite sides of the pusher, and opposite free ends overlappable to cover the opening.

Abstract: An adapter device converting HDMI signals to a format suitable for network transmission includes a HDMI module, a network module, and a light guiding pipe between the two. The HDMI module includes a HDMI plug and a first photoelectric converter. The network module includes a network plug, a second photoelectric converter, and a buffer between the second photoelectric converter and the network plug. The light guiding pipe is connected between the first photoelectric converter and the second photoelectric converter. Video/audio signals output from the HDMI plug are converted to light signals via the first photoelectric converter and the photoelectric converter converts the light signals to video/audio signals. The video/audio signals are stored in the buffer, and are orderly output from network plug to the network.

Abstract: An optical fiber coupler includes a main body and a cover detachably coupled with the main body. The main body includes a coupling member, at least two lenses, at least two optical fibers and a connecting post. The lenses and the optical fibers are mounted on the coupling member. The optical fibers couples with corresponding lenses. The lenses protrudes from the coupling member. The connecting post protrudes from the main body adjacent to the lenses. The cover defines a fixing hole and a covering groove corresponding to the lenses. The fixing hole engages with the connecting post, for positioning the coupling member to the cover. The cover covering the lenses via allowing the at least two lenses to be received in the covering groove.

Abstract: A supporting device includes a stage, a level-meter assembly, a supporting pole, a first and second adjusting members. The stage includes a supporting plate having an upper surface and a lower surface, a first side plate, and a second side plate opposite to the first side plate. The two side plates extend from the lower surface. The first side plate includes a first surface facing away from the lower surface. The second side plate includes a second surface facing away from the lower surface. The second surface defines a first receiving hole and a second receiving hole. The level-meter assembly is mounted on the upper surface. The supporting pole is mounted on the first surface. A first extendable pole of the first adjusting member is received in the first receiving hole. A second extendable pole of the second adjusting member is received in the second receiving hole.

Abstract: An optical-electric coupling element includes a lower surface, an upper surface, and a first side surface. The lower surface defines a first cavity. The first cavity includes a bottom portion forming a first photic zone and a second photic zone. The first photic zone includes first coupling lenses. The second photic zone includes second coupling lenses. The upper surface defines a second cavity. The second cavity includes a sloped surface. The first side surface defines a receiving cavity. The receiving cavity includes a vertical surface forming a third photic zone and a fourth photic zone. The third photic zone includes third coupling lenses. The fourth photic zone includes fourth coupling lenses. Each third coupling lens corresponds with a respective one of the first coupling lenses. Each fourth coupling lens corresponds with a respective one of the second coupling lenses.

Abstract: An HDMI signals transmission device includes a first HDMI connector, a second HDMI connector, a first cable, a second cable, and an optical fiber connector assembly. One end of the first cable is electrically connected to the first HDMI connector. One end of the second cable is electrically connected to the second HDMI connector. The optical fiber connector assembly includes a first optical fiber connector electrically connected to the other end of the first cable, a second optical fiber connector electrically connected to the other end of the second cable, a first optical fiber interconnected between the first optical fiber connector and the second optical fiber connector, and a second optical fiber interconnected between the first optical fiber connector and the second optical fiber connector.

Abstract: A lens module includes a front lens unit and a bottom lens unit. The front lens unit includes a number of first lenses having parallel optical axes. The bottom lens unit is detachably connected to the front lens unit. The bottom lens unit includes a number of second lenses having parallel optical axes.

Abstract: A dust cleaning device includes a tray, a cover assembled to the tray, and an air nozzle. The tray defines recesses for receiving lens barrels. A bottom of each of the recesses defines a through hole communicating with the lens barrel. The cover includes a main body and an inlet tube. The main body includes a top wall, a bottom wall, sidewalls, guide passages between the top and bottom walls, an inlet passage, and outlet passages. The inlet tube extends from the top wall. The guide passages criss-cross and communicate with each other. The sidewalls shield the guide passages. The inlet passage communicates with an inside of the inlet tube and one of the guide passages. The outlet passages communicate with the guide passages and are exposed at the bottom wall. The outlet passages are aligned with the respective recesses. The air nozzle is mounted in the inlet tube.

Abstract: A photoelectric conversion device includes a circuit board, light-emitting modules, light-receiving modules, an optical coupling module, and a protecting member. The light-emitting modules and the light-receiving modules are mounted on the circuit board. The optical coupling module is mounted on the circuit board, and includes first and second optical surfaces, a reflection surface, first converging lenses formed on the first optical surface and corresponding to the light-emitting modules and the light-receiving modules, and second converging lenses formed on the second optical surface and corresponding to the first converging lenses. The protecting member is mounted on the circuit board to shield the optical coupling module, the light-emitting modules, and the light-receiving modules, and only exposes the second converging lenses.