Abstract: An optical connector includes a circuit board, at least one light emitter, at least one light receiver, a shell, and at least two enhancing pins. The circuit board includes a mounting surface. The at least one light emitter and at least one light receiver are mounted on the mounting surface. The shell covers the at least one light emitter and the at least one light receiver. The at least two enhancing pins passes through the shell and are received in the circuit board to fix the shell on the mounting surface.

Abstract: An optical connector includes a substrate, a light emitter, a case, an optical fiber, and a photo detector. The light emitter, the case, and the photo detector are positioned on the substrate, and the case covers the light emitter and the photo detector. The case defines a first slot and a second slot. The first slot is configured for splitting a light beam of the light emitter into a part transmitting to the optical fiber for data transmission and another part to a side surface of the second slot and directed to the photo detector for intensive and stability measurement of the light beam.

Abstract: A light bar includes a printed circuit board, and light emitting diode (LED) modules adhered to the printed circuit board. Each LED module includes an LED, a frame and a lens. The frame includes a top surface and a bottom surface opposite to the top surface, the top surface being recessed towards the bottom surface to define a cavity in the frame. The LED is received in the cavity. The bottom surface of the frame is adhered to the printed circuit board. The lens is mounted on the top surface of the frame and covers the LED. A bottom surface of the lens occupies an area substantially the same as that occupied by the top surface of the frame.

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 male optical connector includes a connector body, a hollow pusher, a number of lenses, and two elastic shielding plates. The connector body defines a receiving hole with an opening and includes a connection surface in the receiving hole. The connection surface faces the opening. The pusher extends from the connector body and surrounds the receiving hole. The lenses are received in the receiving hole. The two elastic shielding plates have two fixed ends fixed to opposite sides of the pusher, and opposite free ends overlappable to cover the opening.

Abstract: A photoelectric converting module includes a circuit board, a locating frame fixed on the circuit board, and a photoelectric coupling element. The photoelectric coupling element includes a bottom surface. The bottom surface defines a groove. A shape of the groove coincides with that of the locating frame and a size of the groove is slightly greater than that of the locating frame. The groove receives the locating frame.

Abstract: An optical coupling assembly includes a circuit board, at least one light emitter, at least one light receiver, and an optical coupling module. The circuit board includes a mounting surface and an alignment groove formed on the mounting surface. The at least one light emitter and at least one light receiver are mounted on the mounting surface. The optical coupling module includes at least two lenses and a positioning member. The positioning member is engaged with the alignment groove, with each of the at least one light emitter and the at least one light receiver being optically aligned with a respective one of the at least two first lenses.

Abstract: A multimedia data transmission device configured for connecting a data source and a multimedia display device includes a first connection terminal, a second connection terminal, and a transmission cable. The first connection terminal is electrically connected to the data source. The second connection terminal is optically coupled with the multimedia display device. The transmission cable is optically interconnected between the first connection terminal and the second connection terminal.

Abstract: A photoelectric conversion device includes a circuit board, light-emitting modules, light-receiving modules, an optical coupling module, and a lens strip. 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, and first converging lenses formed on the second optical surface and corresponding to the light-emitting modules and the light-receiving modules. The lens strip is mounted on the circuit board and includes a body portion and second converging lenses. The body portion includes an upper surface and an opposing lower surface defining a receiving cavity. The second converging lenses are formed on the upper surface. The light-emitting modules and the light-receiving modules are received in the receiving cavity and are aligned with the second converging lenses.

Abstract: An optical communication module includes a substrate, an optical-electric conversion unit located on and electrically connected to the substrate, and a lens unit. The lens unit includes a first surface facing the substrate and a second surface opposite to the first surface. The first surface includes a lens and defines two through holes extending from the second surface to the first surface. The lens is configured for coupling the optical-electric conversion unit to the lens unit. An optical axis of the lens is perpendicular to the substrate and on a first plane. Center lines of the two through holes are perpendicular to the substrate and on a second plane. The first plane is parallel with the second plane. The through holes are configured for aligning the lens with the optical-electric conversion unit.

Abstract: A lens includes a top surface, a bottom surface opposite to the top surface, and a side surface interconnecting outer edges of the top surface and the bottom surface. An aspheric protrusion member protrudes from the top surface. The protrusion member includes coaxial extending portions which are stacked along an optical axis of the lens. A step is formed between each two adjacent extending portions. A receiving chamber is recessed from the bottom surface and oriented toward the top surface. The receiving chamber includes a top surface being roughened to diffuse light and make the diffuse light evenly travel through the lens.

Abstract: A photoelectric coupling module includes a photoelectric board, a photoelectric lens module, and a jumper. The photoelectric board is configured for converting light rays into electrical signals or converting the electrical signals into the light rays. The photoelectric lens module is positioned on the photoelectric board and configured for reflecting the light rays. The jumper includes a fiber connector and two fasteners extending from one side of the fiber connector. The photoelectric lens module is locked between the fasteners and the fiber connector. The photoelectric lens module reflects the light rays emitting from the photoelectric board to the fiber connector or reflects the light rays emitting from the fiber connector to the photoelectric board.

Abstract: An optical coupling lens includes a main body and two plugs. The main body includes a front surface, a back surface opposite to the front surface, a first optical surface, a second optical surface perpendicular to the first optical surface, a reflecting surface obliquely facing the two optical surfaces, first converging lenses formed on the first optical surface, and second converging lenses formed on the second optical surface. The plugs extend from the front surface and sandwich the first converging portions. Each plug includes a cylindrical body portion having a flat end surface, a bowl-shaped protruding portion extending from the end surface and having a top surface away from the end surface, and a buffering portion formed in the top surface. The diameter of the protruding portion decreases from the end surface to the top surface.

Abstract: A communication device includes four signal sending chips, four signal receiving chips, a first optical module and a second optical module. Each of the first optical module and the second optical module includes a main body and four lenses formed on the main body. The first optical module has four signal sending channels corresponding to the four lenses thereof, and the second optical module has four signal receiving channels corresponding to the four lenses thereof. The first optical module and the second optical module are individual from each other.

Abstract: A photoelectric coupling module includes a fiber module, a lens module, and at least one positioning pole. The fiber module defines a plurality of receiving holes and at least one first positioning hole. The lens module includes a central portion and an edge portion surrounding the central portion. The central portion includes a plurality of lenses, and the lenses are respectively aligned with the receiving holes. The edge portion defines at least one second positioning hole. The at least one positioning pole is made of metal, and penetrates the at least one second positioning hole and the at least one first positioning hole.

Abstract: A photoelectric converter includes a circuit board, a laser diode, a plurality of optical sensors mounted on the circuit board, a transmission body, and a first lens set, a second lens set, and a plurality of optical fibers mounted on the transmission body. The transmission body defines a reflection groove and a plurality of optical signal splitting holes. A first sidewall of the reflection groove is inclined relative to the transmission direction of the optical signals. A bottom surface of each optical signal splitting hole is inclined relative to the first sidewall and to the second surface. The optical signals transmitted by the first lens set are reflected by the first sidewall. Most of the reflected optical signals are transmitted to the optical fibers via the second lens set, and a small remaining portion of optical signals are reflected by the bottom surface to the optical sensors.

Abstract: An optical fiber connector includes a main body, lens portions, and 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 cavity includes an inner surface. The lens portions are positioned on the second side surface, and each lens portion is coaxial with a corresponding accommodating hole. A focal plane of each lens portion overlaps the inner surface. The optical fibers are fixed in the accommodating holes. An end of each optical fiber is fixed at the focal plane of a corresponding lens portion. The main body includes a bottom surface and defines a through hole in the cavity. The through hole passes through the bottom surface.

Abstract: An optical-electrical converting module includes a housing and a PCB with electrical terminals, optical-electrical converting components, and a reflector. The housing includes a first end surface and an opposite second end surface, and defines a receiving space including a first opening defined in the first end surface and a second opening defined in the second end surface. The PCB is received in the receiving space, the PCB includes a first end adjacent to the first opening and a second end adjacent to the second opening. The electrical terminals are arranged on the second end and are electrically connected with the optical-electrical converting components. The reflector is mounted on the first end, and includes a first optical surface facing the first opening, a second optical surface facing the optical-electrical converting components, and a reflective surface titled relative to the first optical surface and the second optical surface.

Abstract: A photoelectric converter for optical signals includes a laser diode for emitting the optical signals, an optical transmission module for transmitting the optical signals, and a photo diode for converting the optical signals to electrical signals. The optical transmission module includes lenses oriented at ninety degrees from each other, with total internal reflection between the lenses, and optical fibers coupled with the lenses. The photoelectric converter has a high coupling precision between the lenses and the optical fibers, and the loss of optical signals is minimized.

Abstract: A photoelectric coupling module includes a substrate, a photoelectric unit, and a lens module. The photoelectric unit is positioned on the substrate, and includes at least one light emitter and at least one light receiver. The lens module is positioned on the substrate, and includes a reflection surface, at least two first lenses, and at least two coupling portions. Each coupling portion includes a receiving part and a second lens received in the receiving part. Optical axes of the first lenses cross optical axes of the second lenses of the at least two coupling portions on the reflection surface. The first lenses are aligned with the at least one light emitter and the at least one light receiver.