Abstract: An on-chip optical filter having Fabri-Perot resonators and a spectrometer may include a first sub-wavelength grating (SWG) reflecting layer and a second SWG reflecting layer facing each other. A plurality of Fabri-Perot resonators are formed by the first SWG reflecting layer and the second SWG reflecting layer facing each other. Each of the Fabri-Perot resonators may transmit light corresponding to a resonance wavelength of the Fabri-Perot resonator. The resonance wavelengths of the Fabri-Perot resonators may be determined according to duty cycles of grating patterns.

Abstract: An example device in accordance with an aspect of the present disclosure includes a diamond waveguide disposed on a substrate. The substrate includes a dielectric material. A tuner is to extend from the substrate, and is disposed at least in part over the waveguide. The tuner includes a tuner electrode to control a variable distance between the tuner and the waveguide to vary an effective refractive index of the waveguide.

Abstract: Provided is a waveguide-type optical diffraction grating. A waveguide core includes a waveguide core that is asymmetric with respect to a thickness direction perpendicular to a light propagating direction. In the waveguide core, a phase adjustment portion is configured to adjust a phase difference between a forward wave traveling in an input direction and a reflected wave traveling in a direction reverse to the input direction in the waveguide-type optical diffraction grating, and the phase adjustment portion is provided in a manner that a sum of a phase of the forward wave and a phase of the reflected wave which are generated in the phase adjustment portion becomes a constant value irrespective of a polarization state of input light to the waveguide-type optical diffraction grating.

Abstract: A photonic waveguide structure may include a tapered photonic waveguide structure within a photonic substrate, such that the tapered photonic waveguide structure has a tapered region that progressively tapers in width along a longitudinal length of the tapered photonic waveguide structure. The photonic waveguide structure also includes an optical fiber waveguide having a core region and a cladding region, whereby a portion of the core region is partially exposed by removing a portion of the cladding region. An outer surface of the portion of the core region that is partially exposed is substantially coupled to the tapered photonic waveguide structure. An optical signal propagating along the tapered photonic waveguide structure is coupled from the tapered region of the tapered photonic waveguide structure to the core region of the optical fiber waveguide via the core region that is partially exposed.

Abstract: Optical circuit board assemblies having one or more lens bodies are disclosed. In one embodiment, the assembly comprises a composite circuit board comprising a glass-substrate and a non-glass substrate with the non-glass substrate having at least one cutout that exposes a portion of the glass substrate and at least one optical trace comprising one or more optical interfaces on the composite circuit board. The one or more optical interfaces of the composite circuit board are in optical communication with the one or more lens bodies. Other optical circuit board assemblies may include other features such as a bezel mount attached to the composite circuit board or an attachment structure secured to the composite circuit board.

Abstract: A mechanism for securing a series of fibre optic cable connectors includes a base that has several connector recesses and a lid that is removably attached to the base. The mechanism may be used to ruggedly connect a series of fibre optic cables in a downhole instrument where space is limited, with the ability to break each of the series of fibre optic cables individually.

Abstract: Communication device connection assemblies are described. The sealable connection assemblies are configured to provide water-tight connections for various data transmission elements, including cables, network devices, and computing devices. The connection assemblies may be used for various data transmission protocols, such as fiber optic connections. A compression element of the connection assembly may be configured to engage and compress a sealing element against a communication cable extending through the sealable connection assembly when a tension element is coupled to the inner body, thereby forming a seal between the sealable element and the communication cable. The connection assemblies may include a retainer body configured to form a grip or retention force with a communication cable sufficient to reduce and/or eliminate any forces on the communication cable (i.e.

Abstract: A hybrid optical fiber adapter comprises a first adapter end configured to receive a first optical fiber connector, and a second adapter end configured to receive a second optical fiber connector of a different type from the first optical fiber connector. The hybrid adapter further comprises a spring configured to couple to the second adapter end such that the second optical fiber connector received into the second adapter end is disposed between the spring and the second adapter end, so as to allow floating of the second optical fiber connector. In one embodiment, the first optical fiber connector is an LC connector and the second optical fiber connector is a micro connector. The hybrid adapter may be coupled to a module such that the second adapter end protrudes into the module, requiring less space inside the module compared to conventional hybrid adapters, without sacrificing optical performance.

Abstract: An optical connector includes a first attachment area (110) for receiving and permanently attaching to an optical waveguide (115). A light coupling unit (120) is disposed and configured to move translationally and not rotationally within the housing of the connector. The light coupling unit includes a second attachment area (121) for receiving and permanently attaching to an optical waveguide received and permanently attached at the first attachment area. The light coupling unit also includes light redirecting surface (122). The light redirecting surface is configured such that when an optical waveguide is received and permanently attached at the first and second attachment areas, the light redirecting surface receives and redirects light from the optical waveguide. The optical waveguide limits, but does not prevent, a movement of the light coupling unit within the housing.

Abstract: The present disclosure is directed to a keyed optical component assembly that ensures that the same has a proper orientation when press-fit into or otherwise coupled to a complimentary opening of an optical subassembly housing. In an embodiment, the keyed optical component assembly includes a base portion defined by a first end and a second end disposed opposite the first end along a longitudinal axis. A first arcuate region extends from the first end towards the second end and transitions into a tapered region. A second arcuate region extends from the second end towards the first end and also transitions into the tapered region. Therefore, the tapered region extends between the first arcuate region and the second arcuate region, and generally tapers/narrows from the second arcuate region to the first arcuate region. The resulting shape of the base portion may generally be described as an asymmetric tear-drop shape.

Abstract: A shuttered adapter is described that includes a shuttered housing, a shutter sub-assembly frame contained within the housing, a pair of shutter doors hingedly secured to the shutter sub-assembly frame, and a door spring configured to push the shutter doors outward from the shutter sub-assembly frame and away from each other. The shuttered housing can have a separable sleeve retention insert which allows a ledge to be molded inside the shuttered housing. The ledge can be configured to abut the front lower surface of the shuttered doors when the doors are pushed outward from the shutter sub-assembly frame.

Abstract: A cleaning tool includes: a tool body; and an insertion part provided projecting from the tool body, the insertion part being configured to be movable in a predetermined direction with respect to the tool body, the insertion part including a head unit, the head unit being configured to press a cleaning element against a cleaning target with a pressing surface, wherein by relatively moving the tool body and the insertion part, the cleaning element is supplied and recovered, and the head unit is rotated in a rotation direction with the predetermined direction as an axis, the head unit includes a head member and a tubular member, the head member including the pressing surface, the head member being inserted into the tubular member with the pressing surface in a projected state, the cleaning element is stretched around the pressing surface.

Abstract: A ferrule for optical connectors. The ferrule includes a mating face for mating with a mating ferrule. Fiber receiving openings extend through the mating face. A protrusion surface extends from the mating face. The protrusion surface surrounds the fiber receiving openings, wherein all of the fiber receiving openings extend through the protrusion surface of the mating face. A top surface of the ferrule has an opening, the opening is positioned proximate to the mating face. A fiber positioning member is positioned in the ferrule, the fiber positioning member has channels which cooperate with individual fibers to properly position and retain the fibers in the ferrule. The channels have tapered surfaces which guide the fibers into the channels smoothly without the fiber abutting on the wall of the channels.

Abstract: An optical communication apparatus includes a fiber stub, a planar waveguide device optically connected to the fiber stub, and a resin body. The fiber stub includes a holder and an optical fiber held by the holder, the holder having first and second portions arranged along a first reference plane. The resin body connects the planar waveguide device to the fiber stub. The first portion of the holder has first and second end faces, and has a first hole for the optical fibers extending from first to second end faces. The second portion of the holder has third and fourth end faces, and has a second hole for a guide pin. A first distance between the first and the second end faces is larger than a second distance between the third and fourth end faces.

Abstract: A method for optically and mechanically coupling an optical fiber to an optical or optoelectronic component on a substrate is provided. The method comprises: providing an optical fiber comprising a core and a cladding, the core being exposed at an end face of the optical fiber; forming a polymer waveguide core on the end face, the polymer waveguide core extending from the fiber core; bringing the polymer waveguide core in proximity of the optical or optoelectronic component; providing a liquid optical material, the liquid optical material embedding the polymer waveguide core; and curing the liquid optical material, thereby forming a polymer cladding layer encapsulating the polymer waveguide core and mechanically attaching the optical fiber to the optical or optoelectronic component.

Abstract: A multi-channel laser device with a fiber array includes a housing and a ferrule. In the housing, laser components are arranged side by side, and each of the laser components is connected to a fiber array module through an optical isolator. The fiber array module includes thermal expanded fibers, and fibers out of the fiber array module are collected by the ferrule. The laser components are disposed on the same module board, and laser light radiated from the front end of a laser chip in each of the laser components is projected onto the optical isolator through a convex lens and then enters into the thermal expanded fiber. Such a structure may reach a relatively-high coupling efficiency and implement the coupling of arrayed laser components.

Abstract: A method is for aligning an electro-optic device. The method may include initially positioning an optical fiber array adjacent to optical grating couplers, and actively aligning the optical fiber array relative to the optical grating couplers in a yaw direction and a roll direction to determine a yaw and roll alignment at a first operating wavelength. The method may include actively aligning the optical fiber array relative to optical grating couplers in an x direction and a y direction to determine a first x and y alignment at the first operating wavelength, determining a second operating wavelength, and actively aligning the optical fiber array again relative to the optical grating couplers in the x direction and y direction to determine a second x and y alignment at the second operating wavelength.

Abstract: The present disclosure provides an optical module. The optical module of the present disclosure may include: a base, the base being provided with a fixing part configured to place a lens; the lens located in the fixing part; and a laser, located on the base, the laser being configured to transmit an optical signal to the lens, where fixing adhesive is filled symmetrically in gaps between two symmetric sides of the lens and the fixing part.

Abstract: A feedthrough assembly includes a main housing, a first inner housing positioned within the main housing and defining a plurality of first inner conduits, a second inner housing positioned within the main housing and defining a plurality of second inner conduits, and a chamber defined by an internal surface of the main housing, a first end of the first inner housing, and a first end of the second inner housing that faces the first end of the first inner housing. Each of the plurality of first inner conduits is aligned with a corresponding one of the plurality of second inner conduits. A cross-sectional area of the chamber varies along a longitudinal axis of the main housing.

Abstract: An optical transceiver module and an optical cable module are disclosed. The optical cable module comprises an optical cable and the optical transceiver module connected to the optical cable. The optical transceiver module comprises a substrate, at least one optical receiving device and a plurality of hermetic transmitting devices. The plurality of hermetic transmitting devices are disposed on the substrate, wherein each of the hermetic transmitting devices includes an optical transmitter, and the optical transmitters of the hermetic transmitting devices are completely sealed in one or more than one hermetic housing.

Abstract: An optical module includes: a butterfly-type optical device including a body that contains a heating element in an interior space, a lid body that puts a lid on the interior space, and a plurality of pins; a substrate including a connecting surface to which the plurality of pins are connected; and a heat-dissipating component arranged to the connecting surface side, wherein the optical device is connected to the connecting surface with a heat-dissipating surface, of a part that has been arranged with the heating element, oriented to the heat-dissipating component side, and with a gap provided to a side of the lid body opposite to a side of the interior space.

Abstract: In one exemplary embodiment, an optical communications module includes an upper housing portion mated to a lower housing portion with an optical port projecting through an opening in a front surface of the mated assembly. Electronic circuit housed inside the mated assembly can lead to electromagnetic interference (EMI) leakage through a front surface of the mated assembly, especially through the opening that accommodates the optical port. An EMI shield, which is used to address the EMI leakage, includes an annular array of resilient metal fingers that press against a metal flange of the optical port, and also includes at least two peripheral edges each incorporating an array of resilient metal fingers that press against a metal portion of the mated assembly. An interdigital spacing in the annular array and/or the array of resilient metal fingers is defined on the basis of a wavelength associated with the EMI radiation.

Abstract: An optical communications module includes an upper housing portion mated to a lower housing portion, with one or more optical ports located inside the mated assembly. The one or more optical ports are accessible via respective openings in a front portion of the optical communications module. The lower housing portion accommodates an electronic circuit assembly that can lead to emission of electromagnetic interference (EMI) through the front portion of the optical communications module and particularly through the plastic walls of each optical port. Various exemplary embodiments of an electromagnetic interference (EMI) shield in accordance with the disclosure can be embedded inside the front plastic wall of each optical port in order to provide EMI shielding.

Abstract: A telecommunications device includes a module that mounts within an interior of a housing. The housing has a door that latches closed. The module includes a module frame having a bulkhead that divides the interior of the housing into first and second regions. Fiber optic adapters are mounted to the bulkhead. First ports of the adapters are accessible at the first region of the housing interior and second ports are accessible at the second region of the housing interior. The module includes a removable cover for restricting access to the first region. The removable cover including a latch catch that interlocks with the door latch to secure the door in the closed position. The module includes a tray mounted to the module frame within the first region of the housing.

Abstract: An optical fiber module rack system includes a rack including multiple accommodation chambers, opposing first and second sliding grooves located in each accommodation chamber, and a stop block located at each of opposing front and rear ends of each first sliding groove, and optical fiber storage boxes each including a box body mounted in one respective accommodation chamber, a first optical fiber module and second optical fiber module mounted in opposing front and rear sides of box body and connected together, two guide rails located at two opposite lateral sidewalls of box body and respectively coupled to first sliding groove and second sliding groove of respective accommodation chamber, two elastic retainer strips respectively extended from opposite ends of one guide rail and provided with a respective hook block for engagement with one respective stop block, and elongated press member extended from other guide rail for pressing by external force to disengage hook blocks from respective stop blocks for allo

Abstract: This document discloses novel conduits for telecommunications lines, such as optical fibers. In an aspect, a conduit might have a body defining one or more channels into which optical fibers can be inserted. In another aspect, the body might have a first face that is substantially planar and a second face opposing the first face. The second face might a low-rise arc profile and/or might be configured to be installed into a depression in a material. Also disclosed are methods and tools for installing, using, and/or removing such conduit.

Abstract: A device for retaining a plurality of fiber tubes includes a bottom side, a top side, and outer sidewalls extending between the top and bottom sides. First and second groups of fiber tube receptacles in the top side and extend between first and second opposite facing outer sidewalls. First, second and third anchor points of the device each have a pair of fastener perforations extending through the top and bottom sides. First and second anchor points are arranged outside of the first and second groups of fiber tube receptacles. The third anchor point is arranged between the first and second groups. Each of the fiber tube receptacles has a first diameter in outer longitudinal regions and a second diameter in a central longitudinal region, the central longitudinal region being disposed between the outer regions. The first diameter is greater than the second diameter.

Abstract: A method for securing a fiber optic component includes: providing a holding medium having a tack and mounted on a substrate; and placing the fiber optic component in intimate contact with the holding medium to thereby secure the fiber optic component to the substrate. The tack of the holding medium releasably bonds the fiber optic component to the holding medium and the holding medium retains its tack upon removal of the fiber optic component to permit re-placement of the fiber optic component or placement of a further fiber optic component on the holding medium to secure said fiber optic component or further fiber optic component to the substrate.

Abstract: A waterproof housing for a digital device includes a lens mount system having a threaded aperture provided on the housing, a lens arrangement including an optical lens coupled to a threaded collar, and a positioning assembly for fixedly locating the lens arrangement to the housing at a predetermined rotational engagement position of the threaded collar to the threaded aperture. The positioning assembly includes a releasable locking pin that is located in the housing adjacent to the threaded aperture, and a recess in a mounting surface of the lens arrangement for receiving a locking end of the pin when the lens arrangement and the housing are positioned at the predetermined engagement position. At this position, an optical feature of the lens arrangement is located at a predetermined desired distance from an optical plane of a camera of a digital device positioned within the housing.

Abstract: A lens unit includes a display member that is in a cylindrical shape, that rotates around an optical axis of the lens unit, and that has a scale indicating a photographing distance on an outer circumference surface thereof, and a window member that is provided over the display member, that exposes part of the outer circumference surface including the scale of the display member, and that hides the other part of the outer circumference surface of the display member. The photographing distance has first and second length units. The display member is movable along the optical axis between a first position and a second position. When the display member is in the first positon, the window member exposes the first length unit. Further, when the display member is in the second position, the window member exposes the second length unit.

Abstract: An integrated image sensor and a camera lens apparatus comprising of an image sensor substrate, a camera lens mount, a lens barrel, a lens optical assembly and a collet. The camera lens mount comprises a first material, the lens barrel comprises a second material and the collet comprises a third material, the first, second and third materials change in length with a temperature change according to their respective coefficient of thermal expansion. The lens optical assembly comprises optical elements that cause a change in focal length with a temperature change according to a thermal optical coefficient. The first, second, and third material, the lengths of the camera lens mount, lens barrel, and collet, and the thermal optical coefficient of the lens optical assembly are such that the image plane is approximately stationary relative to the sensor surface in response to the temperature change.

Abstract: An apparatus having an optical structure and ridges is described, wherein adhesive is arranged between the ridges and the optical structure, wherein the adhesive is effective to effect, after its annealing, a predetermined orientation of the optical structure in relation to a reference plane.

Abstract: A lens apparatus includes a can ring for moving an optical member in an optical axis direction by rotating about an optical axis relative to a fixed barrel. One end surface of the cam ring in the optical axis direction is in contact with a first ball array, while an opposite end surface of the cam ring in the optical axis direction is in contact with a second ball array, the first ball array is rotatably held by and between a ring member movable in the optical axis direction and the one end surface, the second ball array is rotatably held by and between a cap member fixed to the fixed barrel and the opposite end surface, and the ring member is biased by an elastic member toward the cam ring, and the cam ring is thereby biased toward the cap member.

Abstract: A camera module including a fixing unit including a hole formed therein; a moving unit including at least one lens, and configured to linearly move in the hole of the fixing unit; and a driving unit configured to drive the moving unit. Further, the driving unit includes a corresponding magnet arranged in the inner surface of the hole of the fixing unit; a moving coil surrounding the outer surface of the moving unit; and a fixed coil arranged in the fixing unit and configured to receive from the moving coil a current or voltage variable based on a distance with the moving coil.

Abstract: An optical device includes a fixed tube that has a straight groove extending in a first direction parallel to an optical axis of the optical device, a cam ring that has a cam groove extending in a second direction intersecting to the first direction, a cam follower that is engaged with the straight groove and the cam groove, a lens unit that moves in conjunction with the cam follower in the first direction, and an auxiliary cam follower that is engaged with the straight groove and that is not engaged with the cam groove. When the fixed tube and the cam ring relatively rotate, the lens unit moves in the first direction. Further, the lens unit is fixed to the cam follower and the auxiliary cam follower.

Abstract: The present disclosure relates to an imaging apparatus and a method for operating the same, and more particularly, to a high-speed lens moving technique capable of effective multi-view angle and multi-focus images for a short period of time and an image photographing and sorting technique according the high-speed lens moving technique. Accordingly, the movement of lenses is performed using a new technique without applying the existing slow lens moving technique performed using a motor, etc., so that it is possible to acquire multi-view angle and multi-focus images using one imaging apparatus for a short period of time.

Abstract: A zoom lens unit includes a zoom ring that has a scale indicating a focal length of the zoom lens unit, an indicator member that points a desired value on the scale, and a selection mechanism that is configured to select one of first and second moving states of the indicator member. In the first moving state, the indicator member moves as the zoom ring rotates. Further, in the second moving state, the indicator member moves without rotating the zoom ring.

Abstract: A visualization system for vehicles includes a mirror glass, three housing elements and a securing element. The first element includes an engagement aperture. The second element includes a first shaft extending in an outward direction. The first shaft has a first undercut opposite a rear side. The third element includes a second shaft that extends in an inward direction towards the housing. The second shaft has a second undercut opposite a rear side. The securing element extends in the inward direction into the engagement aperture and presses against both rear sides of the shafts causing both the first and second undercuts to press against the edge of the engagement aperture from opposite sides and thereby preventing the first and second shafts from moving either inward or outward with respect to the first element. The mirror glass is disposed on the opposite side of the third element from the first element.

Abstract: A laser device is provided. The laser device includes: a laser tube having an opening in both ends thereof, and a fixing apparatus on at least one of the ends of the laser tube. The opening in at least one of the ends of the laser tube is sealed by the fixing apparatus. A movable assembly and a window are provided on the fixing apparatus. The window is movable relatively to the opening of the laser tube when being driven by the movable assembly, to change a transmission position of a laser light generated by the laser tube on the window.

Abstract: An imaging lens is constituted by, in order from the object side to the image side: a first lens having a negative refractive power and a concave surface toward the image side; a second lens having a negative refractive power; a third lens having a positive refractive power and a convex surface toward the image side; a fourth lens having a negative refractive power and a concave surface toward the image side; a biconvex fifth lens which is cemented to the fourth lens; and a sixth lens having a negative refractive power and a concave surface toward the object side. Conditional Formula (1) below is satisfied: ?2.1<r3r/f<?1.2??(1).

Abstract: An imaging lens is constituted by, in order from the object side to the image side: a first lens having a negative refractive power and a concave surface toward the image side; a second lens having a negative refractive power; a third lens having a positive refractive power and a convex surface toward the image side; a fourth lens having a negative refractive power and a concave surface toward the image side; a biconvex fifth lens which is cemented to the fourth lens; and a sixth lens having a negative refractive power and a concave surface toward the object side.

Abstract: An imaging lens is constituted by, in order from the object side to the image side: a first lens having a negative refractive power and a concave surface toward the image side; a second lens having a negative refractive power; a third lens having a positive refractive power and a convex surface toward the image side; a fourth lens having a negative refractive power and a concave surface toward the image side; a biconvex fifth lens which is cemented to the fourth lens; and a sixth lens having a negative refractive power and a concave surface toward the object side. Conditional Formula (1) below is satisfied: ?1.05<f12/f<?0.8??(1).

Abstract: A six-piece optical lens for capturing image and a six-piece optical module for capturing image are provided. In order from an object side to an image side, the optical lens along the optical axis includes a first lens with refractive power, a second lens with refractive power, a third lens with refractive power, a fourth lens with refractive power, a fifth lens with refractive power and a sixth lens with refractive power. At least one of the image-side surface and object-side surface of each of the six lens elements is aspheric. The optical lens can increase aperture value and improve the imagining quality for use in compact cameras.

Abstract: A six-piece optical lens for capturing image and a six-piece optical module for capturing image are provided. In order from an object side to an image side, the optical lens along the optical axis includes a first lens with refractive power, a second lens with refractive power, a third lens with refractive power, a fourth lens with refractive power, a fifth lens with refractive power and a sixth lens with refractive power. At least one of the image-side surface and object-side surface of each of the six lens elements is aspheric. The optical lens can increase aperture value and improve the imagining quality for use in compact cameras.

Abstract: A six-piece optical lens for capturing image and a six-piece optical module for capturing image are provided. In order from an object side to an image side, the optical lens along the optical axis includes a first lens with refractive power, a second lens with refractive power, a third lens with refractive power, a fourth lens with refractive power, a fifth lens with refractive power and a sixth lens with refractive power. At least one of the image-side surface and object-side surface of each of the six lens elements is aspheric. The optical lens can increase aperture value and improve the imagining quality for use in compact cameras.

Abstract: A six-piece optical lens for capturing image and a six-piece optical module for capturing image are provided. In order from an object side to an image side, the optical lens along the optical axis includes a first lens with refractive power, a second lens with refractive power, a third lens with refractive power, a fourth lens with refractive power, a fifth lens with refractive power and a sixth lens with refractive power. At least one of the image-side surface and object-side surface of each of the six lens elements is aspheric. The optical lens can increase aperture value and improve the imagining quality for use in compact cameras.

Abstract: An optical image capturing system includes, along the optical axis in order from an object side to an image side, a first lens, a second lens, a third lens, a fourth lens, and a fifth lens. At least one lens among the first to the fifth lenses has positive refractive force. The fifth lens can have negative refractive force, wherein both surfaces thereof are aspheric, and at least one surface thereof has an inflection point. The lenses in the optical image capturing system which have refractive power include the first to the fifth lenses. The optical image capturing system can increase aperture value and improve the imaging quality for use in compact cameras.

Abstract: An optical image capturing system includes, along the optical axis in order from an object side to an image side, a first lens, a second lens, a third lens, a fourth lens, and a fifth lens. At least one lens among the first to the fifth lenses has positive refractive force. The fifth lens can have negative refractive force, wherein both surfaces thereof are aspheric, and at least one surface thereof has an inflection point. The lenses in the optical image capturing system which have refractive power include the first to the fifth lenses. The optical image capturing system can increase aperture value and improve the imaging quality for use in compact cameras.

Abstract: An optical image capturing system includes, along the optical axis in order from an object side to an image side, a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, and a seventh lens. At least one lens among the first to the sixth lenses has positive refractive force. The seventh lens can have negative refractive force, wherein both surfaces thereof are aspheric, and at least one surface thereof has an inflection point. The lenses in the optical image capturing system which have refractive power include the first to the seventh lenses. The optical image capturing system can increase aperture value and improve the imaging quality for use in compact cameras.

Abstract: An optical image capturing system includes, along the optical axis in order from an object side to an image side, a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, and a seventh lens. At least one lens among the first to the sixth lenses has positive refractive force. The seventh lens can have negative refractive force, wherein both surfaces thereof are aspheric, and at least one surface thereof has an inflection point. The lenses in the optical image capturing system which have refractive power include the first to the seventh lenses. The optical image capturing system can increase aperture value and improve the imaging quality for use in compact cameras.