Abstract: The present application discloses a display device, the display device includes a frame area. The display device includes a backplate, a light guide plate, and an optical diaphragm. A receiving cavity is defined in the backplate, the light guide plate is located in the receiving cavity, the light guide plate includes at least one light guide plate extension part, the light guide plate extension part is located in the frame area, the optical diaphragm is arranged on the light guide plate, the optical diaphragm includes at least one diaphragm extension part, and the diaphragm extension part is located in the frame area. The diaphragm extension part is engaged together and connected with the light guide plate extension part.

Abstract: An optical waveguide includes a diamond layer including a first surface, a second surface and a diamond layer including a complex defect; a first clad layer in contact with the first surface; a second clad layer in contact with the second surface and including a polarity; and a metal layer in Schottky contact with the second clad layer.

Abstract: An optoelectronic package is provided. The optoelectronic package includes a photonic component, a connection structure, and an electronic component. The photonic component has an active surface. The connection structure is in contact with the active surface of the photonic component. The electronic component is embedded in the connection structure. The connection structure includes a first redistribution structure in contact with the active surface of the photonic component.

Abstract: A photonic integrated circuit platform includes a substrate, a first oxide layer disposed on the substrate and including an insulating transparent oxide, and a first optical element layer disposed on the first oxide layer and including a semiconductor material. The photonic integrated circuit platform further includes a second optical element layer disposed on the first optical element layer and including an insulating material different from the insulating transparent oxide of the first oxide layer, the second optical element layer further including a compound semiconductor material different from the semiconductor material of the first optical element layer, a second oxide layer disposed on the second optical element layer and including an insulating transparent oxide, and a plurality of optical elements formed by patterning the first optical element layer or the second optical element layer.

Abstract: An integrated circuit including an optical waveguide is described. The optical waveguide includes cascaded Mach-Zehnder interferometers (MZI) filters. The cascaded MZI filters are used for multiplexing and/or demultiplexing. The cascaded MZI filters achieve a desired level of center waveguide accuracy. The center waveguide accuracy may be achieved by any one or more of the following: trimming the MZI filters to a target thickness, interleaving phase sections of the cascaded MZI filters, nonlinear tapers, compact directional couplers, dummification, and/or phase sections with widths selected for phase compensation.

Abstract: The present disclosure is to provide a shape of a surface mount type optical module to be mounted on a surface of a system board or package submount, and is to provide a compact and lightweight optical module attachment/detachment apparatus that performs the mounting (attachment) and separation of the optical module in a confined space by automatically performing optical module loading/unloading, optical module alignment, and laser soldering to facilitate attachment and detachment of the optical module. The attachment/detachment apparatus includes a body frame; a fixing part for fixing the body frame to the board; a gripper for gripping the optical module; an aligning part for aligning the position of the optical module with respect to the board; and a laser part which irradiates a laser for non-contact bonding between the optical module and the board.

Abstract: A semiconductor-on-insulator (SOI) structure and a method for forming the SOI structure. The method includes forming a first dielectric layer on a first semiconductor layer. A second semiconductor layer is formed over an etch stop layer. A cleaning solution is provided to a first surface of the first dielectric layer. The first dielectric layer is bonded under the second semiconductor layer in an environment having a substantially low pressure. An index guiding layer may be formed over the second semiconductor layer. A third semiconductor layer is formed over the second semiconductor layer. A distance between a top of the third semiconductor layer and a bottom of the second semiconductor layer varies between a maximum distance and a minimum distance. A planarization process is performed on the third semiconductor layer to reduce the maximum distance.

Abstract: The disclosure relates to a PIC structure including a photonic component on a semiconductor substrate. Each of a plurality of optical guard elements are composed of a light absorbing material and are in proximity to the photonic component. The optical guard elements may mimic an outer periphery of at least a portion of the photonic component. The optical guard elements may include at least one of: a germanium body positioned at least partially in a silicon element, a silicon body having a high dopant concentration, and a polysilicon body having a high dopant concentration over the silicon body.

Abstract: Configurations for an optical system used for guiding light and reducing back-reflection back in an output waveguide is disclosed. The optical system may include an output waveguide defined in a slab waveguide. The output waveguide may terminate before an output side of the slab waveguide, which may reduce the back-reflection of light from the output side back into the output waveguide. The output side may define an optical element that may steer the output light. The optical element may collimate the output light, cause the output light to converge, or cause the output light to diverge.

Abstract: In part, the disclosure relates to a photonic device that may include a curved waveguide that includes a plurality of layers; a curved elongate structure defining an upper surface, an inner elongate surface, and an outer elongate surface, the curved elongate structure comprising a first end, and a second end; and a ridge extending from the upper surface, the ridge having a first side and a second side; and a trench defined by one or more of the plurality of layers and the first side; the curved elongate structure defines a first elongate section and a second elongate section, wherein a first cross-section of the ridge has a first shape that substantially extends along the first elongate section of the structure, the first shape is defined by the first side and a step extending from the first side and above the bottom of the trench.

Abstract: Various embodiments disclosed herein describe photonic passive delay lines that have a waveguide wound into a plurality of straight segments and bends. The photonic passive delay lines are configured to reduce losses from parasitic modes of light generated at the bends. Embodiments of the photonic passive delay lines vary the dimensions of the straight segments to provide different amounts of dephasing between a mode of input light received by the photonic passive delay line and one or more parasitic modes.

Abstract: A method includes patterning a top silicon layer in a substrate to form a plurality of photonic devices. The substrate includes the top silicon layer, a first dielectric layer under the top silicon layer, and a semiconductor layer under the first dielectric layer. The method further includes forming a second dielectric layer to embed the plurality of photonic devices therein, forming an interconnect structure over and signally coupling to the plurality of photonic devices, bonding an electronic die to the interconnect structure, thinning the semiconductor layer, and patterning the semiconductor layer that has been thinned to form openings. The openings are filled with a dielectric material to form dielectric regions. Through-vias are formed to penetrate through the dielectric regions to electrically couple to the interconnect structure.

Abstract: An optical transceiver includes: an optical transceiver circuit; a light source device to multiplex light rays emitted from light source elements having different wavelengths, and output multiplexed light; a demultiplexer to demultiplex the light output from the light source device into wavelengths to supply the wavelengths to the optical transceiver circuit; monitors to monitor the wavelengths at output ports of the demultiplexer, respectively; and a wavelength controller to control the wavelengths of the light source elements, based on monitoring results of the monitors, wherein the demultiplexer includes unit circuits in each of which three asymmetric Mach-Zehnder interferometers having a predetermined arm length difference are cascaded in a tree shape, and each of the monitors is arranged at an output waveguide of an asymmetric Mach-Zehnder interferometer at an end of the cascaded tree, to be connected to the wavelength controller via a signal line.

Abstract: A collimation fiber adapter includes a base, a metasurface collimation lens, a sleeve, and a fiber ferrule. The base includes a mounting cavity with a positioning structure at an end of the mounting cavity. The metasurface collimation lens is connected to the positioning structure. The sleeve is arranged inside the mounting cavity. An end of the sleeve away from the positioning structure is configured to assemble a fiber. The fiber ferrule is arranged inside the mounting cavity and assembled with an end of the sleeve close to the positioning structure. A first side end surface of the fiber ferrule away from the positioning structure is configured to be coupled with the fiber. A second side end surface of the fiber ferrule close to the positioning structure is opposite to the metasurface collimation lens.

Abstract: An optical connector assembly includes a first optical connector and a second optical connector. The first optical connector includes a first housing, a plurality of first optical fibers, a first cable retainer and a first light coupling unit attached to the plurality of first optical fibers and separated by a first optical fiber length L1. The second optical connector includes a second housing, a plurality of second optical fibers, a second cable retainer and a second light coupling unit attached to the plurality of second optical fibers and separated by a second optical fiber length L2, different from L1. The ratio of L1/L2 is such that, when the first optical connector is mated with the second optical connector, the first light coupling unit and the second light coupling unit rotate relative to the first housing and the second housing, respectively, and mate.

Abstract: A fiber optic connector has a fiber optic connector shutter that rotates about a first axis and an adapter for the fiber optic connector also has an adapter shutter that rotates about a second axis in the adapter. When the fiber optic connector and the adapter are mated to one another, the axes for the fiber optic connector shutter and the adapter shutter are aligned and the fiber optic connector shutter and the adapter shutter rotate about a single axis. The fiber optic connector shutter and the adapter shutter include structure to maintain engagement during the mating and un-mating of the fiber optic connector and the adapter.

Abstract: An optical connector cleaning tool includes a cleaning portion pressed against a coupling end face of an optical connector, a container storing a cleaning liquid, and an atomizer spraying the cleaning liquid to the cleaning portion.

Abstract: Disclosed are disinfecting covers for optical-fiber connectors. For example, a male disinfecting cover can include a plug, a bore of the plug, an absorbent disposed in the bore, and a disinfectant absorbed by the absorbent. The plug is configured to insert into a receptacle of a female optical-fiber connector. A female disinfecting cover can include a body, a receptacle in the body, an absorbent disposed in the receptacle, and a disinfectant absorbed by the absorbent. The receptacle is configured to accept a male optical-fiber connector. Whether the disinfecting cover is male or female, the absorbent is configured to contact the ferrule and the optical fiber disposed of the optical-fiber connector. Methods can include at least a method of using the male or female disinfecting cover.

Abstract: Technologies for pluggable optical connectors are disclosed. In the illustrative embodiment, an optical plug includes a ferrule with one or more optical fibers. The optical plug also includes a ferrule holder that holds the ferrule and a housing that encloses the ferrule and ferrule holder. The ferrule holder can move relative to the house, and the ferrule can move relative to the ferrule holder and the housing. As the optical plug is plugged into a socket, alignment features in the housing coarsely align the ferrule. Intermediate alignment features in the ferrule holder then engage, aligning the ferrule more precisely. As the optical plug is fully plugged in, fine alignment features in the ferrule engage, precisely aligning the ferrule and the optical fibers with the optical socket.

Abstract: An objective of the present disclosure is to provide an optical coupler and an optical switch capable of achieving stable optical characteristics with low power consumption and more economical efficiency with respect to external factors.

Abstract: A retention portion configured to enable release of a cable connector from an adapter without manipulation of the retention portion or the connector by a user, includes: a first portion; and a second portion extending from the first portion. The first portion may comprise an adapter engaging portion that may engage a receiving portion of an adapter; the second portion may move a withdrawal resisting portion of a connector out of engagement with the second portion as the withdrawal resisting portion moves in a withdrawal direction relative to the first portion; and the second portion may be configured to permit the connector to be released from the adapter without manipulation of the connector by a user so as to prevent damage to the connector from the connector being pulled out of the adapter in the withdrawal direction by a force exerted on a cable connected to the connector.

Abstract: The present disclosure relates to systems and method for deploying a fiber optic network. Distribution devices are used to index fibers within the system to ensure that live fibers are provided at output locations throughout the system. In an example, fibers can be indexed in multiple directions within the system. In an example, fibers can be stored and deployed form storage spools.

Abstract: A cabling system for extending electronic signals between devices is disclosed. The cabling system includes an extension cable connecting a female source connector and a destination connecter. The female source connector is housed within a headshell that is configured to mount to a wallplate, a table insert, or a rack panel within meeting and conference locations.

Abstract: An optical apparatus includes a light emitting apparatus and a host apparatus. The light emitting apparatus includes a housing extending in a first direction, a light emitting device mounted in the housing, an optical connector including a first optical connection part provided at one end of the housing, and an electrical connector including a first electrical connection part provided at one end of the housing and receiving a voltage to drive the light emitting device. The host apparatus includes a host optical connector including a second optical connection part which faces the first optical connection part and is optically coupled thereto, a host electrical connector including a second electrical connection part facing the first electrical connection part and being electrically connected to the first electrical connection part, and a host board mounting the host optical connector and the host electrical connector thereon.

Abstract: In some examples, an electronic device includes a light guide. In some examples, the light guide includes a facial side and a rear side. In some examples, the facial side includes a lens to focus incoming light. In some examples, the rear side includes exit features to guide outgoing light. In some examples, the electronic device includes an image sensor disposed behind the lens to capture the incoming light.

Abstract: Certain embodiments of the present disclosure are directed towards an optical assembly such as a multiplexers/demultiplexers (MDM). One example optical assembly generally includes: a fiber array configured to provide an optical signal with a plurality of wavelengths; optical wavelength filters configured to separate the plurality of wavelengths into respective optical signals; a lens array configured to receive the respective optical signals from the optical wavelength filters and focus the respective optical signals before reaching an optical interface for a photonic chip; and a birefringent crystal disposed between the lens array and the optical interface.

Abstract: A system and method for alignment. In some embodiments, the method includes measuring a first offset, the first offset being an offset along a first direction between a first alignment mark and a second alignment mark, the first alignment mark being an alignment mark on a first edge of a source die, the second alignment mark being an alignment mark on a target wafer, and the first direction being substantially parallel to the first edge of the source die.

Abstract: An optical circuit board of the present disclosure includes a wiring board and an optical waveguide. The wiring board includes a mounting region for an optical component on an upper surface of the wiring board. The optical waveguide is located in a region adjacent to the mounting region, and includes, over the upper surface of the wiring board, a lower cladding layer, a plurality of cores extending in a first direction, and an upper cladding layer in this order, and is provided with alignment marks on the lower cladding layer. The lower cladding layer includes a first region in which the plurality of cores are located, and two second regions located facing the first region across a groove at positions between which the plurality of cores are sandwiched. The optical waveguide includes a first surface facing the mounting region, and end surfaces of the plurality of cores are exposed thereon.

Abstract: A light emitter includes a substrate including a first surface, a cladding on the first surface of the substrate, a core inside the cladding, a lid on the cladding, a first light-emitting element inside an element sealing area on the first surface, a second light-emitting element inside the element sealing area, and a light-receiving element inside the element sealing area.

Abstract: An optical transceiver includes a housing, a release component, a bottom cover and a handle. The housing includes a terminal portion and a first engagement component connected to each other. The first engagement component detachably engages a second engagement component of an elastic arm of a cage. The release component is in an accommodation space of the terminal portion. The bottom cover includes a main portion and an elastic component connected to each other. The main portion is fixed to the terminal portion. The elastic component extends from the main portion into the accommodation space and exerts an elastic force on the release component so that the release component is positioned at or moved to an original position. The handle is movably disposed on the terminal portion for pushing the release component so as to detach the second engagement component from the first engagement component.

Abstract: The present invention is directed to microfluidics systems, instruments, and cartridges including self-aligning optical fiber systems and methods of use thereof. More specifically, the disclosure describes a microfluidics instrument including an optical detection system, microfluidics cartridge, and a self-aligning optical fiber system capable of coupling the microfluidics instrument and the microfluidics cartridge. Further, the disclosure provides methods of optical detection operations using a microfluidics system.

Abstract: Provided are embodiments of an optical fiber cable. The optical fiber cable includes a cable jacket having an inner surface and an outer surface. The inner surface defines a central cable bore, and the outer surface defines an outermost surface of the optical fiber cable. The optical fiber cable also includes a cable core disposed in the central cable bore. The cable core includes a plurality of multicore optical fibers and a cross-sectional area. The plurality of multicore optical fibers fill at least 50% of the cross-sectional area of the cable core. Each multicore optical fiber of the plurality of multicore optical fibers has an inner glass region having a plurality of core regions surrounded by a common outer cladding. The cable core has a core region density that is at least 40 core regions/mm2.

Abstract: The present application discloses a miniature and easy-to-stripping square communication optical cable, comprises an optical transmission conductor, an optical cable sheath, and a reinforcing component, the optical cable sheath is configured as a cuboid, the optical transmission conductor is arranged at center of the cuboid optical cable sheath, the midpoints of two long sides of the cuboid optical cable sheath are respectively provided with a separation port, and the separation port is configured as isosceles triangle. The optical cable sheath is configured as a cuboid. The midpoints of the two long sides of the cuboid optical cable sheath are respectively provided with an isosceles triangle-shaped separation port, and the apex angles of the isosceles triangle-shaped separation ports are arranged on a second longitudinal centerline.

Abstract: The present application discloses a miniature and easy-to-stripping butterfly-shaped photoelectric composite communication optical cable, comprising an optical cable part and a cable part fixedly connected to a side of the optical cable part, the optical cable part comprises an optical transmission conductor, an optical cable sheath, and reinforcing components, the cable part comprises a cable sheath and an electrical transmission conductor, the electrical transmission conductor and the optical transmission conductor extend in parallel in the same direction, and photoelectric separation ports are provided between the cable sheath and the optical cable sheath. The optical cable part is arranged separately from the cable part, and the magnetic field generated when the cable part transmits power has a certain distance from the optical cable part, which does not affect the signal transmission of the optical cable part.

Abstract: Provided are embodiments of an optical fiber cable. The optical fiber cable includes a cable jacket having an inner surface and an outer surface. The inner surface defines a central cable bore, and the outer surface defines an outermost surface of the optical fiber cable and a cable cross-sectional area (AC). At least one buffer tube is disposed within the central cable bore. Each buffer tube has an interior surface defining a buffer tube cross-sectional area (ATube, ID). A plurality of optical fibers (N) are disposed within the at least one buffer tube. Each optical fiber has a fiber diameter of 160 microns to 200 microns. The plurality of optical fibers have a total fiber area (AF). The buffer tube has a free space (1?AF/ATube, ID) of at least 37%, and the optical fiber cable has a fiber density (N/AC) of at least 3.25 fibers/mm2.

Abstract: An optical cable according to an embodiment of the present disclosure is an optical cable for installation in a microduct, the optical cable including one or more optical-fiber core wires, and a sheath layer covering an outer peripheral side of the one or more optical-fiber core wires. The sheath layer has a density of 2.0 g/cm3 or less. The sheath layer contains an olefin-based resin, a silicone, and a non-halogen flame retardant. A mass ratio of the non-halogen flame retardant to the olefin-based resin is 0.90 to 2.00. A mass ratio of the silicone to the olefin-based resin is 0.005 to 0.100. The olefin-based resin contains a polyethylene, and an ethylene-vinyl acetate copolymer or an ethylene-ethyl acrylate copolymer. The silicone has a weight-average molecular weight of 50,000 to 1,000,000.

Abstract: One or more active components can be strand mounted within a cabinet that also has passive optical components. Certain types of strand mounts are slidable relative to the cabinet to enhance access to the components. Each component may be independently slidable.

Abstract: A multi-cassette fiber distribution frame for easily withdrawing a desired cassette from a stacked structure of a plurality of cassettes can include a frame whose front surface is open, a plurality of holders provided on the frame at intervals, a plurality of slots formed by the intervals and each including an inlet and an outlet facing the front surface of the frame, and pop-up parts provided on the plurality of holders and configured to be elastically restored toward the inlet and outlet.

Abstract: A mounting system (700/900) for locking two pieces of telecommunications equipment (610/810) to prevent relative sliding therebetween and relative separation therebetween in a direction generally perpendicular to the direction of the relative sliding includes a first locking feature (701/901) defined by a stud (702/902) with a stem portion (708/908) and a flange portion (710/910) having a larger profile than the stem portion (708/908) and a second locking feature (703/903) defined by a slot (704/904) with a receiver portion (712/912) and a retention portion (714/914). The receiver portion (712/912) is sized to accommodate the flange portion (710/910) of the stud (702/902) and the retention portion (714/914) is sized to accommodate the stem portion (708/908) but not the flange portion (710/910) of the stud (702/902).

Abstract: An imaging lens module includes a casing, an imaging lens disposed to the casing, a lens carrier supporting the image lens, an elastic element connected to the lens carrier to provide the lens carrier with a translational degree of freedom along an optical axis, a frame connected to the elastic element such that the lens carrier is movable along the optical axis with respect to the frame, a variable through hole module coupled to the imaging lens and having a light passable hole with a variable aperture size, and a wiring assembly including a fixed wiring part at least partially located closer to the opening than the elastic element and a movable wiring part electrically connected to the fixed wiring part and the variable through hole module. The optical axis passes through lens elements of the imaging lens and the center of the variable through hole module.

Abstract: An optical element driving mechanism is provided. The optical element driving mechanism includes a movable portion used for connecting an optical element, a fixed portion, and a driving assembly used for driving the movable portion to move relative to the fixed portion. The movable portion is movable relative to the fixed portion.

Abstract: An embodiment includes a housing including a guide protrusion projecting from an upper surface thereof and a guide groove formed adjacent to the guide protrusion, a first magnet disposed at the housing, a bobbin on which a lens is mounted, a first coil disposed on an outer circumferential surface of the bobbin to move the bobbin by interaction with the first magnet, an upper elastic member coupled to the bobbin and the housing and having an end disposed in the guide groove, a damping member disposed between a side surface of the guide protrusion and a first end of the upper elastic member disposed in the guide groove, and a second coil for moving the housing by interaction with the first magnet.

Abstract: A method and apparatus for collecting radiation by reflecting, redirecting, focusing, and transitioning the radiation, comprising providing a first reflective focusing surface, receiving full-spectrum light with the first surface, focusing the light onto a second reflective focusing surface after passing through a filtering surface, and allowing the two reflective surfaces to reflect visible light from one surface to the other and out an exit, while infrared light is minimized via the filtering surface.

Abstract: An optical system includes a sensing assembly and a processing circuit. The sensing assembly is configured to sense light and output a sensing signal accordingly. The processing circuit is configured to analyze the sensing signal. The processing circuit is configured to output a main judgment signal to an external circuit according to the sensing signal.

Abstract: An optical imaging lens includes a first lens element, a second lens element, a third lens element, a fourth lens element and a fifth lens element in sequence along an optical axis from an object side to an image side. When the object moves from infinity to macro, the optical imaging lens correspondingly forms a first focusing state and a second focusing state to achieve the focusing purpose. The fifth lens element has negative refracting power, an optical axis region of the object-side surface of the fifth lens element is concave, and an optical axis region of the image-side surface of the fifth lens element is concave. Lens elements included by the optical imaging lens are only five lens elements, and (TTL*?HFOV)/?G?19.000 degrees is satisfied.

Abstract: An optical imaging lens includes an aperture, a front lens group and a rear lens group along an optical axis from an object side to an image side. A first lens element of the front lens group is a lens element in a first order from the object side, and a second lens element is in a second order. The first lens element has positive refracting power, and an optical axis region of the object-side surface of the second lens element is convex, or its periphery region is convex. Lens elements included by the optical imaging lens are only five lens elements. The rear lens group enables the optical imaging lens to form a first focusing state and a second focusing state. EFL is an effective focal length of the first focusing state, and EFLA is an effective focal length of the second focusing state to satisfy EFL/EFLA?1.200.

Abstract: An optical imaging system includes a first lens, a second lens, a third lens, a fourth lens, and a fifth lens sequentially disposed along an optical axis from an object-side surface of the first lens toward an imaging plane of an image sensor, wherein 3.5?TTL/IMG HT, f1+f2|<2.0 mm, and 0.7?L1S1es/L1S1el<1.0 are satisfied, where TTL is a distance along the optical axis from the object-side surface of the first lens to the imaging plane of the image sensor, IMG HT is one-half of a diagonal length of the imaging plane of the image sensor, f1 is a focal length of the first lens, f2 is a focal length of the second lens, L1S1el is a maximum effective radius of the object-side surface of the first lens, and L1S1es is a minimum effective radius of the object-side surface of the first lens.

Abstract: The present disclosure relates to the technical field of optical lens and discloses a camera optical lens. The camera optical lens includes, from an object side to an image side: a first lens having a negative refractive power, a second lens having a negative refractive power, a third lens having a positive refractive power, a fourth lens having a positive refractive power, a fifth lens having a negative refractive power, and a sixth lens having a positive refractive power. The camera optical lens satisfies following conditions: 2.50?f2/f1?8.00; f45/f??5.00; 1.20?d5/d6?5.00; and ?20.00?R6/R5??2.00. The camera optical lens has outstanding optical functions, while satisfying a desire of wide angle and ultra-thinness.

Abstract: The present disclosure relates to the technical field of optical lens and discloses a camera optical lens. The camera optical lens includes, from an object side to an image side: a first lens having a negative refractive power; a second lens having a positive refractive power; a third lens having a positive refractive power; a fourth lens having a negative refractive power; a fifth lens having a positive refractive power; and a sixth lens having a negative refractive power. The camera optical lens satisfies following conditions: ?8.00?f1/f??3.00; ?6.00?f34/f??1.50; and R10/R9?1.50. The camera optical lens has outstanding optical functions, while satisfying a desire of large aperture and long focal length.

Abstract: An optical imaging system includes a first lens having positive refractive power, a convex object-side surface and a concave image-side surface; a second lens having negative refractive power, a convex object-side surface and a concave image-side surface; a third lens having positive refractive power; a fourth lens having negative refractive power; a fifth lens; a sixth lens having a convex object-side surface; and a seventh lens having negative refractive power, a convex object-side surface and a concave image-side surface, wherein the first to seventh lenses are disposed in order from an object side toward an imaging plane, wherein the optical imaging system has a total of seven lenses, and wherein 0<f1/f<1.5, ?5<f2/f<?1, ?10<f3/f/100<2, ?5<f4/f/100<1, ?0.5<f1/f2<0, ?1<f1/f3<3, 70°<FOV×(IMG HT/f), and |f1/f4/n4|<0.3 are satisfied.