Abstract: Aspects of the present application provide an optical device comprising a suspended optical component over a cavity, such as an undercut region in a substrate. The cavity is filled with a filler material. In some embodiments, the optical device and a method may be provided to fill the cavity with the filler material using a reservoir and a channel in the substrate connecting the reservoir to the cavity to be filled.

Abstract: The present disclosure relates to semiconductor structures and, more particularly, to grating couplers with multiple configurations and methods of manufacture. A structure includes: a grating coupler having a sawtooth configuration provided over a semiconductor slab; and a back end of line (BEOL) stack over the sawtooth configuration of the grating coupler.

Abstract: The present disclosure provides a windproof cover unit for optical fiber fusion splicer. The windproof cover unit includes a windproof cover, a mounting base unit, a flexible printed circuit (FPC) unit, and a rotational axle of the windproof cover, wherein the windproof cover comprises a protruding cover surface, an inner space, and a white-light lamp unit for providing illumination for the optical fiber fusion splicer in the inner space.

Abstract: An optical fiber is inserted into an inside portion of a hollow tube of an insert and guides light emitted from a light source. A base end section includes an optical fiber insertion part used for inserting the optical fiber. An optical fiber fixing member fixes the optical fiber at a position spaced from a distal end of the optical fiber. The optical fiber insertion part has a first portion into which the optical fiber fixing member is inserted. The first portion has at least three protrusions protruding toward the center at positions spaced from each other in a circumferential direction. A size of the optical fiber fixing member in a direction perpendicular to an insertion direction into the first portion is larger than that of an inside portion of the first portion, and the optical fiber fixing member is harder than the first portion.

Abstract: A polarization rotator and an optical signal processing method are disclosed. A first transceiving waveguide includes a first end and a second end; a polarization rotation region waveguide includes a first waveguide and a second waveguide, where the first waveguide is located above the second waveguide, the first waveguide is connected to the second end of the first transceiving waveguide, the first waveguide and the second waveguide are non-linear profile waveguides; a mode conversion region waveguide includes a third waveguide and a fourth waveguide, where the third waveguide is connected to the second waveguide, the fourth waveguide is on a same horizontal plane as the third waveguide and the second waveguide, the third waveguide and the fourth waveguide are non-linear profile waveguides; and the second transceiving waveguide includes a third end and a fourth end, where the third end of the second transceiving waveguide is connected to the fourth waveguide.

Abstract: An optical assembly includes a first grating device configured to: receive a light beam that includes an optical signal with a particular wavelength from a fiber; and change a propagation direction of the optical signal according to the particular wavelength of the optical signal. The optical assembly also includes a second grating device configured to: receive the optical signal outputted from the first grating device; change the propagation direction of the optical signal according to the particular wavelength of the optical signal; and direct the optical signal onto a grating coupler. The first grating device and the second grating device are configured to satisfy a plurality of configuration constraints.

Abstract: An expanded beam ferrule includes a first ferrule halve having first reflective surfaces and a second ferrule halve having second reflective surfaces, which together retain optical fibers. The pair of reflective surfaces output collimated light parallel to the mid-plane of the ferrule. An external sleeve aligns the external surface of two similar ferrules, with corresponding second reflective surfaces of the ferrules facing each other. Output light from an optical fiber held in one ferrule is bent twice by the pair of reflective surfaces, with beam divergence after the first bent, and collimation after the second bent. The collimated light is transmitted to the facing second reflective surface in a facing second ferrule aligned by the sleeve, which is subject to optical reshaping in reverse to that undertaken in the first ferrule, so as to converge and focus light to input to the optical fiber held in the other ferrule.

Abstract: An optical fiber connector dust cap made of transparent material and suitable to be fitted in a port of an optical fiber adapter, and an indicator lamp provided at a port of the optical fiber adapter. A reflective surface is provided inside the dust cap, and an optical fiber connector is inserted into another port of the optical fiber adapter. A light emitted from the indicator lamp hits one side of the reflective surface, and is then reflected towards the external end section of the dust cap by the reflective surface, and is output from the external end section of the dust cap. Allowing an operator to clearly see the operational status of the indicator lamp on the optical fiber adapter, at the external end section of the dust cap.

Abstract: The present disclosure includes systems and methods for testing bundles of fiber optic fibers, such as fiber optic trunk cables, for correct polarity of connections at each end of the bundle of fibers while preventing the fiber optic fibers from contacting any other components during testing. The systems include a processor, a plurality of signal generators interfaced with a plurality of signal generator ports, a sensor interfaced with a sensor input port, a first selector switch, and a display, the processor operable to stimulate the plurality of signal generators one at a time in a first sequence to produce a signal, the first sequence based on a position of the first selector switch, the processor further operable to cause the display to display an output of the sensor.

Abstract: A connector sub-assembly comprising: (a) an insert housing defining two or more insert ferrule openings and at least two insert alignment pin openings, and having a mating surface; (b) a retainer attached to the insert and defining two or more retainer ferrule openings and at least two retainer alignment pin openings; (c) at least two alignment pins, each of the alignment pins disposed in one the insert alignment pin openings and in one of the retainer alignment pin openings, thereby aligning the insert ferrule openings and the retainer ferrule openings, the at least two alignment pins extending from the mating surface; and (d) only one fastener securing the insert and the retainer.

Abstract: A cable gripping structure for securing an optical fiber cable in an optical fiber connector possesses a base part and a pair of support walls disposed opposite one another on the base part, and blade parts for gripping the optical fiber cable are disposed on the pair of support walls, at the tip ends thereof and separated from the bases of the support walls.

Abstract: A ruggedized cable connection structure configured to direct mate first and second ruggedized optical fiber connectors is disclosed. The connection assembly has a housing having a channel extending from a first end of the housing through to the second end of the housing, an adapter secured within the channel near a midpoint of the housing to enable direct mating of the first and second ruggedized optical fiber connectors, and an integral mounting flange extending from the housing to allow connection to a mounting surface.

Abstract: An optical connector includes: a ferrule that has a brim part; an elastic member that presses the ferrule; a housing that houses the ferrule retractably, and the housing has a protrusion that contacts the brim part of the ferrule, which is pressed by the elastic member in which the protrusion prevents the ferrule from falling out forward; and a regulating part that regulates a rear side limiting position of the ferrule. An interval from a position of the ferrule to the rear side limiting position when the connector is connected is smaller than a retraction amount that the ferrule has retracted when the connector is connected.

Abstract: An optical transceiver performing the full-duplex transmission in a plural channel is disclosed. The optical transceiver provides an optical receptacle, a semiconductor optical device, an inner fiber that optically couples the optical receptacle with the semiconductor optical device, and a fiber tray that secures an extra length of the inner fiber. The fiber tray provides an inner wall inclined toward a direction perpendicular to a direction along which the inner fiber warps. The inner fiber is set within the space as touching the inclined inner wall and sliding thereon toward the inclined direction.

Abstract: The present invention relates to a signal transmission cable with HDMI connectors, and the signal transmission cable uses an optical fiber inside the cable to transmit optical signal. A first HDMI connector comprises a transmission terminal group for transmitting electric signal, and first and second electro-optic conversion modules and a first optical transmission fiber module which all are configured to transmit electric signal, convert electric signal into optical signal, and transmit optical signal to the cable. A second HDMI connector is connected to other end of the cable and comprises a second optical transmission fiber module, first and second photo-electric conversion modules which all are configured to receive the optical signal from the cable, and convert optical signal into electric signal, and a signal terminal group transmitting electric signal. Therefore, the signal transmission cable can provide function of converting and transmitting optical signal and electric signal in bi-direction.

Abstract: An optical fiber including a circuit board, a converter, an optical fiber, an external connecting part, and a pressable part. The circuit board includes first and second faces opposite to each other. The first face has first and second regions being different regions. The second face has third and fourth regions on the opposite side to the first and second regions, respectively. The converter is an opto-electronic or electro-optic converter on the first region of the circuit board. The optical fiber includes a leading end portion optically connected to the converter. A circuit on the first region of the circuit board is electrically connected to the converter. The external connecting part is disposed on the fourth region of the circuit board. The pressable part is fixed to the circuit board and positioned on the second region of the circuit board without contacting the converter, the optical fiber, or the circuit.

Abstract: An optical transceiver cooling assembly includes stacked cages mounted to a PCB. A heat radiator also is mounted on the PCB. Cooling devices (e.g., heat pipes) are coupled to the heat radiator and at least one of the cages. In some embodiments, the cages may include a divider that extends beyond the cage and is coupled to at least one of the cooling devices outside the cage. In some embodiments, the cooling devices extend into the cage and may be coupled together.

Abstract: An optical transmitter and an optical module including the optical transmitter are provided. The optical transmitter may include a support substrate, a temperature control module disposed on the support substrate, a sub-mount disposed on the temperature control module, a prism disposed on the temperature control module and having a sloped surface, a light receiving element disposed on the temperature control module, a light emitting element disposed on the sub-mount, and a thermistor disposed on the sub-mount. The light receiving element may be disposed separately from the sub-mount in a first direction, and the prism may be disposed between the light receiving element and the sub-mount. Some first light emitted from the light emitting element may be reflected by the sloped surface of the prism, and some of the first light may pass through the prism and be received by the light receiving element.

Abstract: A fiber optic splice enclosure includes a basket. The basket includes an outer shell, the outer shell including an outer sidewall defining at least a portion of a periphery of the basket. The basket further includes an insert disposed within the outer shell, the insert including a first sidewall and a second sidewall spaced apart from each other along a transverse axis and each extending along a longitudinal axis to define an inner channel therebetween. The first sidewall and the second sidewall are each further spaced apart from the outer sidewall along the longitudinal axis to define a first outer channel and a second outer channel. The fiber optic splice enclosure further includes a splice tray assembly including at least one splice tray, the splice tray assembly disposed within the inner channel.

Abstract: Provided is a fiber optic adapter for proofing dust and light. The fiber optic adapter includes an adapter body and a lightproof plate assembly. The adapter body includes a body portion and a cover. The body portion has a concave space provided with openings in two directions. The cover is engaged to the body portion and closes one opening of the concave space to form a port provided with one opening. The lightproof plate assembly includes a lightproof plate. Every two adjacent ports on a same side share one lightproof plate. A first end of the lightproof plate is provided with a rotation shaft. Inner walls of two adjacent ports sharing one lightproof plate are provided with a rotation slot. The rotation slot is provided from a side of the body portion facing the cover to a direction away from the cover.

Abstract: Anchoring an input cable (190) at an input port (123, 223) of an enclosure (110) includes inserting the input cable (190) through an anchor member (151, 251) so that a cable jacket (191) terminates within the anchor member (151, 251) and at least one optical fiber (195) extends outwardly from the anchor member (151, 251). The anchor member (151, 251) is secured to the cable jacket (191) using the sheath (175). A cover (162, 260) is mounted to the anchor member (151, 251) to form a pass-through assembly (150, 250) defining an enclosed region. Material is injected into the enclosed region to fix strength members (197) and/or optical fibers (195) of the input cable (190) to the pass-through assembly (150, 250). The ruggedized pass-through assembly (150, 250) is disposed at a base (120, 220) of the enclosure (110).

Abstract: An optical mount system that may be adjusted by a variety of devices and methods. In some cases, a post collar assembly may be configured to engage a collar coupling surface of a post holder body such that the post collar engages the collar coupling surface in indexed and predetermined angular positions. In some cases, a base of a post holder body may be configured to accept a secondary base element in the form of a mounting adapter which may be releasably secured the base to provide additional stiffness for the mounting of the base to a reference surface.

Abstract: A lens barrel includes: fixed barrel including straight groove extending in optical axis direction; cam ring rotatable around optical axis relative to the fixed barrel, and provided with first and second cam grooves; first barrel to which sub-barrel to hold first optic is detachably fixed, the first barrel including first cam follower slidably contacting with the straight groove and the first cam groove; second barrel holding second optic, and including second cam follower slidably contacting with the straight groove and the second cam groove; elastic member disposed between the first and second barrels when sub-barrel is fixed to the first barrel, and biasing the first and second barrels oppositely in the optical axis direction; and regulating mechanism regulating position of end of the elastic member relative to the first barrel without fixing the elastic member to the sub-barrel when the sub-barrel is fixed to the first barrel.

Abstract: A zoom lens having unpowered optical elements changeably inserted between conventional powered optical zoom elements enables ultra-fast and mechanically stable stepped changes in zoom state.

Abstract: An imaging system includes a metering structure and a plurality of foldable members disposed around a periphery of the metering structure. Each foldable member in the plurality of foldable members includes an arm comprising a strain deployable composite and a reflector disposed on the arm. The arm in a respective foldable member in the plurality of foldable members is configured to hold the respective foldable member toward the metering structure in a first state and to hold the respective foldable member away from the metering structure in a second state such that the reflector of the respective foldable member forms part of a sparse aperture in the second state.

Abstract: An infrared ray-tracing lens module is provided. The infrared ray-tracing lens module is adapted to receive light from an object. The infrared ray-tracing lens module includes a first positive diopter lens, a second positive diopter lens, a negative diopter lens and an image unit. The first positive diopter lens, the second positive diopter lens and the negative diopter lens are arranged along an optical axis, and the light travels from the object, sequentially passes through the first positive diopter lens, the second positive diopter lens and the negative diopter lens to be projected to the image unit.

Abstract: A imaging lens assembly includes, in order from an object side to an image side, a first lens element, a second lens element, a third lens element, a fourth lens element, a fifth lens element and a sixth lens element. The first lens element has negative refractive power. The second lens element has positive refractive power. The third lens element has positive refractive power. The fourth lens element has positive refractive power. The fifth lens element has positive refractive power. The sixth lens element has negative refractive power. The imaging lens assembly has a total of six lens elements.

Abstract: A camera lens includes, arranged sequentially from an object side to an image side: a first lens with positive refractive power; a second lens with negative refractive power; a third lens with positive refractive power; a fourth lens with positive refractive power; a fifth lens with negative refractive power. The camera lens satisfies specific conditions.

Abstract: The present disclosure discloses a camera optical lens. The camera optical lens including, in an 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. The first lens is made of glass material, the second lens is made of glass material, the third lens is made of plastic material, the fourth lens is made of plastic material, the fifth lens is made of plastic material, the sixth lens is made of plastic material, and the seventh lens is made of plastic material. The camera optical lens further satisfies specific conditions.

Abstract: The present disclosure discloses a camera optical lens. The camera optical lens including, in an 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. The camera optical lens further satisfies specific conditions.

Abstract: A four-piece optical lens for capturing image and a four-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; and a fourth lens with positive refractive power; and at least one of the image-side surface and object-side surface of each of the four lens elements are aspheric. The optical lens can increase aperture value and improve the imagining quality for use in compact cameras.

Abstract: A lens module may include a first lens having positive refractive power, a second lens having refractive power, a third lens having positive refractive power, a fourth lens having refractive power, a fifth lens having refractive power, a sixth lens having refractive power, and a seventh lens having negative refractive power. An inflection point may be formed on an image-side surface of the sixth lens. A turning point may be formed on an image-side surface of the seventh lens. The first lens, the second lens, the third lens, the fourth lens, the fifth lens, the sixth lens and the seventh lens are disposed in a sequential order from the first lens to the seventh lens.

Abstract: The present disclosure provides an optical imaging lens assembly comprising, in order from an object side to an image side: a first lens element having negative refractive power; a second lens element with negative refractive power having an object-side surface being convex in a paraxial region thereof and an image-side surface being concave in a paraxial region thereof; a third lens element having positive refractive power; a fourth lens element having positive refractive power; a fifth lens element having positive refractive power; and a sixth lens element; wherein the optical imaging lens assembly has a total of six lens elements. With such configuration, the optical imaging lens assembly of the present disclosure is characterized by a a wide field of view, a compact size and high image quality.

Abstract: An imaging lens includes a first lens having positive refractive power; a second lens having positive refractive power; a third lens; a fourth lens; a fifth lens; and a sixth lens having negative refractive power, arranged in this order from an object side to an image plane side. The sixth lens is formed in a shape so that a curvature radius of a surface thereof on the object side and a curvature radius of a surface thereof on the image plane side are negative. The surface of the sixth lens on the image plane side has the specific curvature radius so that a specific conditional expression is satisfied.

Abstract: An optical photographing lens assembly includes, in order from an object side to an image side, a first lens element, a second lens element, a third lens element, a fourth lens element, a fifth lens element and a sixth lens element. The first lens element with positive refractive power has an object-side surface being convex in a paraxial region thereof. The second lens element has refractive power. The third lens element has refractive power. The fourth lens element has refractive power. The fifth lens element with refractive power has an image-side surface being convex in a paraxial region thereof, wherein an object-side surface and the image-side surface of the fifth lens element are both aspheric. The sixth lens element with refractive power has an object-side surface and an image-side surface being both aspheric. The optical photographing lens assembly has a total of six lens elements with refractive power.

Abstract: The invention discloses a six-piece optical lens for capturing image and a six-piece optical module for capturing image. In order from an object side to an image side, the optical lens along the optical axis comprises 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; a sixth lens with refractive power; and 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 image capturing lens assembly includes six lens elements, the six lens elements being, in order from an object side to an image side: a first lens element with positive refractive power having an object-side surface being convex thereof; a second lens element having negative refractive power; a third lens element; a fourth lens element; a fifth lens element with positive refractive power having an object-side surface being convex and an image-side surface being convex thereof; and a sixth lens element having an image-side surface being concave in a paraxial region thereof, the image-side surface having at least one convex critical point in an off-axial region thereof, and an object-side surface and the image-side surface being aspheric.

Abstract: A telephoto lens includes a first lens unit having a positive refractive power, a second lens unit having a negative refractive power, and a third lens unit, and the first lens unit includes a front-side lens unit having a positive refractive power and a rear-side lens unit, and the second lens unit moves at the time of focusing, and the third lens unit has a positive lens and a negative lens, and the front-side lens unit includes lenses positioned closer to the object side than a predetermined negative lens that satisfies Conditional Expression (a), and the rear-side lens unit has the predetermined negative lens and a positive lens, and Conditional Expressions (1A) and (14) are satisfied: 0.5?|f/fLn|??(a), 0.015?DGFGR/f?0.25??(1A), and 0.19?DGFairmax/DGF?1.0??(14).

Abstract: An image forming lens system includes a first lens unit having a positive refractive power, a second lens unit having a negative refractive power, and a third lens unit. The first lens unit includes in order from the object side, a front-side lens unit having a positive refractive power and a rear-side lens unit. The second lens unit moves at a time of focusing. The third lens unit has a positive lens element. The rear-side lens unit includes a negative lens element and a positive lens element. The front-side lens unit has an aspherical surface having a positive refractive power on an axis, or the rear-side lens unit has an aspherical surface having a negative refractive power on an axis. The lens element closest to the object side in the first lens unit is fixed in position. Following Conditional Expression (9) is satisfied: 0.06?|fG2/f|?0.195??(9).

Abstract: There is provided a projection optical system capable of projecting an image formed on an image forming unit on a projection plane, which has an extremely short projection distance and a small size.

Abstract: A lighting unit (10) configured to illuminate a surface (32) having a proximal portion (34) and a distal portion (36) in relation to the lighting unit. The lighting unit includes a light source (12) configured to emit a light beam (28), and an optic (40) positioned between the light source and the surface to modify the emitted light beam to have a largely uniform vertical illumination distribution along the surface. The input surface (39) of the optic faces the light source and has a convex lens portion (41) that directs a portion of the emitted light beam at the distal portion of the surface, and a concave lens portion (43) that directs a portion of the emitted light beam at the proximal portion of the surface.

Abstract: A method of forming an imaging calibration device for a biological material imaging system, the method comprises: providing one or more discrete regions upon or within a retaining member, each region for the receipt of a selected predetermined biological stain material; selecting one or more predetermined biological stain materials, wherein each of the selected predetermined biological stain materials has a predetermined optical response, and providing one or more of the selected predetermined biological stain materials to the said one or more discrete regions such that the said material is localised in the said region.

Abstract: The invention relates to a method for observing a sample under optical microscopy, in incoherent, unpolarised light, using a sample substrate including a contrast-amplifying layer having a complex index of refraction. The invention also relates to a method for detecting or metering at least one chemical or biological species using such a sample substrate.

Abstract: The total internal reflection microscope has an illumination optical system that relays light from a light source with a relay optical system, forms an image of the light source on the incident pupil plane of the objective lens and irradiates a sample with the illumination light via an objective lens, has an angle adjustment mirror for changing the position of the image of the light source in a direction orthogonal to the optical axis, an optical detector for detecting the intensity of the returning illumination light reflected by the sample and collected by the objective lens, and a controller for determining the operation amount of the angle adjustment mirror, wherein the controller determines the operation amount of the angle adjustment mirror so that the illumination light is totally reflected at the sample based on the change in intensity of the returning light when the angle adjustment mirror is changed.

Abstract: A microscope apparatus includes a monitoring optical system, an imaging unit capturing an image of an observation target through the monitoring optical system to generate a plurality of images, a correction unit disposed in the optical monitoring system and correcting various aberrations which occur due to an observation condition, and a decision unit deciding a correction amount of the correction unit based on the plurality of images generated by the imaging unit, whereby an image deterioration ascribable to the aberration occurring due to the observation condition in the microscope apparatus is appropriately and easily corrected according to a use condition of the microscope apparatus.

Abstract: An image acquisition device according to the present disclosure includes a lighting system and an irradiation direction decision section. In a module, a subject and an imaging element are integrally formed. The lighting system sequentially irradiates the subject with illumination light in a plurality of different irradiation directions based on the subject such that the illumination light transmitted through the subject is incident on the imaging element. The module acquires a plurality of images according to the plurality of different irradiation directions. Before the plurality of images are acquired according to the plurality of different irradiation directions, the irradiation direction decision section decides the plurality of different irradiation directions based on a difference between a first preliminary image and a second preliminary image.

Abstract: A sample observation method includes an acquisition of for acquiring an electronic image of a sample, and a subtraction step of subtracting a DC component from a signal of the electronic image, and the acquisition step is performed in a state of bright-field observation, the electronic image at the subtraction step is an image acquired in a first predetermined state, and in the first predetermined state, at least a position of the sample and a in-focus position of an image forming optical system are different.

Abstract: An apparatus comprises a unit that manages, state information including information indicating whether the acquisition of partial image data is completed; a acquiring unit that acquires, for each of stitching places of the partial image data, a correction amount for correcting local deviation among the partial image data to be stitched; and a unit that corrects each of the partial image data on the basis of the correction amount, and generating combined image data obtained by stitching the partial image data after the correction. The acquiring unit is controlled on the basis of the state information to start processing for acquiring the correction amount from the partial image data or the stitching place for which acquisition of data necessary for acquiring the correction amount is completed.

Abstract: A telescoping sight having a sight housing, a moveable lens within the sight housing, a course focus adjustment control being operable to move the moveable lens via a spiral track, and a fine focus adjustment control, the fine focus adjustment control being interoperable with the spiral track.

Abstract: An electrowetting display comprises a support plate on which individual electrowetting pixels separated from one another by pixel walls are formed. The individual electrowetting pixels include an electrode layer on the support plate, and a dielectric barrier layer on the electrode layer. The dielectric barrier layer comprises a first portion having a first dielectric constant and a second portion having a second dielectric constant that is substantially less than first dielectric constant. A hydrophobic layer is on the first portion and the second portion of the dielectric barrier layer.