Abstract: An electronic device may be provided with a color ambient light sensor. The color ambient light sensor may be used to measure an ambient light spectrum over a wavelength range of interest. Control circuitry in the electronic device can take actions based on the measured ambient light spectrum such as adjusting the brightness and color cast of content on a display. A display may have a display cover layer. The color ambient light sensor can be mounted under the display cover layer and may receive ambient light through the display cover layer. The color ambient light sensor may have a tunable wavelength filter such as an electrically adjustable Fabry-Perot resonator. A light collimator may be interposed between the display cover layer and the Fabry-Perot resonator to collimate ambient light that is passed to the Fabry-Perot resonator. A light detector measures the light passing through the Fabry-Perot resonator.

Abstract: As a liquid crystal cured film that is small in amount of decrease in phase difference value which decrease is caused in a case where the liquid crystalline cured film is exposed to a high-temperature environment, provided is a liquid crystal cured film containing a polymerizable liquid crystal compound that is polymerized, the liquid crystal cured film having a maximum absorption at a wavelength in a range of not less than 300 nm and not more than 380 nm, and satisfying the following Formula (Y): (1?P?/P0)×100?73 . . . (Y).

Abstract: Provided is a light diffusion film laminate for a reflective display device that can improve the reflection luminance at a predetermined observation position (for example, the front direction of the screen) without reducing the visibility not only from the predetermined observation position (for example, the front direction of the screen) but also from a position away from a predetermined observation position (for example, an oblique direction deviated from the front of the screen) and a reflective display device including the light diffusion film laminate. A light diffusion film laminate for a reflective display device has optical diffusibility that changes depending on an incident angle of light, and at least transmits reflected light occurring when incident light is reflected by a reflective layer.

Abstract: A method for recording a plurality of scatter volume holograms in a photopolymeric recording medium, the method including at least the following steps providing a first laser light source, providing a photopolymeric recording medium including a substrate and a photoactive layer, wherein the photopolymeric recording medium has an index modulation ?n of at least 0.04 and a thickness d of the photoactive layer of at least 25 ?m, and irradiating the photopolymeric recording medium with the first laser light beam generated by the first laser light source with a minimum irradiation energy dosage of 3*Di, Di being the inhibition dosage of the photoactive layer.

Abstract: An illumination and imaging system that is used to obtain enhanced detailed images of objects. The system utilizes a flash element that produces a flash of polychromatic light. A plurality of fiber optic elements are provided that terminate with output ends. At least some of the fiber optic elements are doped to be different colors. Consequently, when each fiber optic element receives the flash of polychromatic light from the flash element, that fiber optic element propagates and filters the polychromatic light to produce colored filtered light. The colored filtered light is directed toward the object being imaged by the camera. The illumination has small points of origin, different color characteristics and simultaneous short flash duration. The combination of colored, directional light sources enables the camera to image very fine details by enhancing surface texture and embedding the image with the color photometric stereo information.

Abstract: A surface light source assembly includes at least one light emitting element, a light guide plate and a reflective sheet. Each of the light emitting elements has an annular light emitting side surface. The light guide plate has a bottom surface and a light exit surface opposite to the bottom surface. The bottom surface has at least one accommodating recess to accommodate at least one light emitting element. Each of the accommodating recesses has a light incident surface. The bottom surface further has a flat portion and at least one inclined surface portion. Each of the inclined surface portions is connected between the flat portion and the light incident surface of the corresponding accommodating recess. The reflective sheet is disposed below the flat portion. A light source module having the surface light source assembly is further provided.

Abstract: A lighting device includes a light guide plate, a light source circuit, and a chassis. By conducting an extrusion process, the light guide plate may at least include a first light-guiding area and a second light-guiding area. The light source circuit faces toward an inlet of the light guide plate. When the light source circuit emits light beams toward the light guide plate, the first light-guiding area reflects the light beams toward a first light-guiding angle group, and the second light-guiding area reflects the light beams toward a second light-guiding angle group. The first light-guiding angle group is different from the second light-guiding angle group. The chassis is configured to fix the light guide plate and the light source circuit.

Abstract: Disclosed is a lighting device which comprises: an optical member comprising a protruding optical pattern forming a gap with an adjacent layer; at least one light emitting unit inserted into the optical member; and a resin layer formed on the optical member and the at least one light emitting unit, whereby it is possible to obtain an effect that the shapes of light change depending on the viewing angle when viewing the light source by producing various protruding optical patterns, an effect that the whole thickness can be reduced, and an effect that the degree of design freedom can be enhanced when designing products thanks to an enhanced flexibility.

Abstract: An optical structure, a light guide, and a display device can reduce an influence of diffraction and improve optical performance more than conventionally possible. A reflective pattern (10A) is an optical structure that changes a traveling direction of light and emits the light, the optical structure including: a reflective surface (20) formed of a flat surface and configured to change a traveling direction of light; and a both-end curved surface (30) formed adjacent to the reflective surface (20) and having a surface in a curved shape corresponding to a side surface of a cylinder.

Abstract: Disclosed is an organic-inorganic hybrid composition. The organic-inorganic hybrid composition includes a curable resin and inorganic particles dispersed in the curable resin. The inorganic particle has a core-shell structure composed of a core containing titanium and barium, and a shell containing at least one selected from zirconium, aluminum and chromium. According to this organic-inorganic hybrid composition, a liquid-phase refractive index of the composition can be improved, and as a result, luminance and light transmittance can be improved in an optical member using the same.

Abstract: A display panel is provided. The display panel includes a display layer, a light diffusion layer, and a light guide plate. The display layer is used to display an image. The light guide plate is disposed under the display layer. The light guide plate guides a light of a back light source to the display layer. The light diffusion layer is disposed between the display layer and the light guide plate. The light diffusion layer is controlled by at least one control voltage, so as to dynamically change the transparency of the light diffusion layer.

Abstract: A liquid crystal display device includes a liquid crystal panel, a backlight unit disposed on a rear surface of the liquid crystal panel to irradiate light, a guide panel to accommodate the liquid crystal panel and the backlight unit, a light blocking tape provided between the liquid crystal panel and the backlight unit to fix the liquid crystal panel and the backlight unit to the guide panel and a step compensating tape to compensate for a step which is a distance between the light blocking tape and the liquid crystal panel, and the step compensating tape has an adhesive force only on one surface thereof that is attached to the light blocking tape.

Abstract: A backlight unit includes a light guide plate (LGP), a housing that receives the LGP, and a first LGP guide member coupled to the housing. The housing includes a bottom surface, a first sidewall, and a second sidewall. The first and second sidewalls are connected to edges of the bottom surface, are disposed adjacent to each other, and are spaced apart from each other. A first corner of the bottom surface is disposed between the first and second sidewalls, and the first LGP guide member is disposed in a gap between the first and second sidewalls.

Abstract: An electronic device includes a substrate film having a first side and a second side, and a number of light sources configured to emit light. A plastic lightguide layer is molded onto the first side of the substrate film. The plastic lightguide layer being of optically at least translucent material to transmit light. The device also includes a masking layer provided on the outer surface of the plastic lightguide layer. The masking layer defines a window for letting the light emitted by the embedded light sources to pass through the masking layer towards the environment.

Abstract: An illuminated drain stopper includes a body having an upper end and a lower end, and a light pipe disposed at the upper end of the body. The light pipe is configured to transfer light from a light source within the body to an outer periphery of the light pipe.

Abstract: A method of making an optical fiber sensor device for distributed sensing includes generating a laser beam comprising a plurality of ultrafast pulses, and focusing the laser beam into a core of an optical fiber to form a nanograting structure within the core, wherein the nanograting structure includes a plurality of spaced nanograting elements each extending substantially parallel to a longitudinal axis of optical fiber. Also, an optical fiber sensor device for distributed sensing includes an optical fiber having a longitudinal axis, a core, and a nanograting structure within the core, wherein the nanograting structure includes a plurality of spaced nanograting elements each extending substantially parallel to the longitudinal axis of the optical fiber. Also, a distributed sensing method and system and an energy production system that employs such an optical fiber sensor device.

Abstract: A silicon photonics module may include a waveguide for receiving and transmitting an optical beam. The silicon photonics module may include a tap connected to the waveguide to allow measurement of an optical power of the optical beam. The silicon photonics module may include one or more splitters connected to the waveguide to tap a portion of the optical beam from the waveguide and to split the portion of the optical beam into a first part and a second part. The silicon photonics module may include a first Mach-Zehnder interferometer (MZI) to filter the first part to allow measurement of an optical power of the filtered first part. The silicon photonics module may include a second MZI to filter the second part to allow measurement of an optical power of the filtered second part.

Abstract: Waveguiding structures and methods of fabricating a waveguiding structure. The waveguiding structure includes a waveguide and an array of semiconductor fins that are arranged at least in part inside the waveguide.

Abstract: An optical waveguide that performs both in-coupling and out-coupling using two diffractive optical elements is provided. Each optical element is a diffraction grating and can be applied to the same or different surface of the optical waveguide. The diffraction gratings overlap to form two overlapping regions. The first overlapping region in-couples light into the waveguide and the second overlapping region out-couples light from the optical waveguide. Because the optical waveguide only uses two gratings, and therefore only has two grating vectors, the optical waveguide is easier to manufacture than optical waveguides with a greater number of grating vectors.

Abstract: Method for preparing micro-optical structure on a film based on chemical mechanical polishing etching, combining photolithography technology with chemical mechanical polishing technology to make preparation and large-scale integration of large-size high-quality micro optical devices on-chip possible. The method comprises coating metal on film surface, selectively removing the metal film by photolithography (such as femtosecond laser selective ablation, ultraviolet photolithography, electron beam etching, ion beam etching, and reactive ion etching), chemical mechanical polishing, chemical corrosion or over polishing and other steps. Micro-optical devices on-chip prepared by the method have extremely high surface finish and extremely low optical loss.

Abstract: A lens assembly for an optical fiber includes an optical gap structure and a multi-mode optical fiber. The optical gap structure has first and second ends and a length measured therebetween. The first end of the optical gap structure is configured to attach to an end of a single-mode optical fiber. The multi-mode optical fiber has first and second ends and a length measured therebetween. The first end of the multi-mode optical fiber is attached to the second end of the optical gap structure. The length of the optical gap structure and the length of the multi-mode optical fiber are set to provide a prescribed working distance and a prescribed light beam waist diameter. The prescribed working distance is a distance measured from the second end of the multi-mode optical fiber to a location of the prescribed light beam waist diameter.

Abstract: The disclosed system may include (1) a light projector that projects a two-dimensional image, (2) an optical waveguide that carries at least some light from the light projector before emitting at least a portion of the light from the optical waveguide, (3) a two-dimensional light detector that receives at least some of the portion of the light emitted from the optical waveguide, and (4) a controller that (a) causes the light projector to project light from at least one of multiple pixels, (b) receives information from the two-dimensional light detector based on light received at the two-dimensional light detector from the at least one of the multiple pixels, and (c) causes an alteration in an alignment of the light from the light projector relative to the optical waveguide based on the information. Various other systems and methods are also disclosed.

Abstract: An optical transmission device controls driving of a mirror that adjusts an attenuation amount of a VOA and a transmission frequency of a TOF. The device acquires an adjustment amount of a reference voltage in which the intensity of output light becomes a target at detecting a change in the attenuation amount. The device calculates a deviation of an attenuation amount by using a difference between the reference frequency and the adjusted frequency specified from the characteristic of the mirror. The device calculates a deviation of an attenuation amount from a relationship at detecting a change in a new attenuation amount. The device calculates an adjustment amount by using a difference between the voltage of the reference frequency specified from the characteristic and the voltage of the frequency that is after deviation, adds the adjustment amount to the reference voltage, and sets the result.

Abstract: A dual polarized waveguide device includes a first waveguide that defines a first linear signal propagation path, a second waveguide that defines a second linear signal propagation path that is parallel to the first linear signal propagation path, and a polarization selective coupling interface coupling the first and second waveguides, the polarization selective coupling interface being configured to enable horizontally polarized signals to pass between the first and second linear propagation paths and prevent vertically polarized signals from passing between the first and second linear propagation paths.

Abstract: Embodiments of the present invention relate to a microring resonator control method and apparatus. The method includes: receiving an instruction, where the instruction is used to configure an operating wavelength of a microring resonator; determining whether the operating wavelength of the microring resonator is less than or equal to a center wavelength of a channel spectrum; and when the operating wavelength of the microring resonator is less than or equal to the center wavelength of the channel spectrum, configuring thermode power of the microring resonator based on a spacing between the operating wavelength and a first wavelength; or when the operating wavelength of the microring resonator is greater than the center wavelength of the channel spectrum, configuring thermode power of the microring resonator based on a spacing between the operating wavelength and a second wavelength.

Abstract: An optical fiber includes: a core that includes quartz glass doped with a core updopant; an inner cladding that includes quartz glass doped with a cladding updopant and a downdopant and that covers a circumferential surface of the core; and an outer cladding that includes quartz glass and that covers an outer circumferential surface of the inner cladding. A refractive index of the inner cladding is substantially equal to a refractive index of the outer cladding. The inner cladding contains the cladding updopant at a concentration such that a refractive index increase rate ascribed to the cladding updopant falls within a range of 0.25% to 0.5%.

Abstract: A photoelectric connector includes a plug and a receptacle. The plug includes a plug housing 200, a first guide pin 220, a first signal transmitting/receiving member 230, a first electrode unit 260, and a plug housing biasing means 250. The receptacle includes a receptacle housing 300, a second signal transmitting/receiving member 330, a second electrode unit 360, and a second signal transmitting/receiving member biasing means 321.

Abstract: An optical connector includes an optical fiber including a glass fiber and a resin coating surrounding the glass fiber; a ferrule having a flange outside the ferrule and holding, inside the ferrule, a portion of the glass fiber exposed from the resin coating at an end of the optical fiber; a plug frame accommodating the ferrule; and an elastic member abutting the flange and biasing the ferrule forward in an optical axis direction of the optical fiber to retain the ferrule inside the plug frame. The flange and the plug frame have a protrusion and a recess that allow the flange and the plug frame to be fitted to each other at the predetermined position. When the ferrule is moved rearward in the optical axis direction, the protrusion and the recess are released from each other to bring the ferrule into a floating state relative to the plug frame.

Abstract: Improved optical fiber coupling reliability is realized by improving structures and materials used at the fiber joint. When ceramic ferrules are used at the fiber joint, the penetration of a UV-cured optical adhesive between the ceramic ferrules and the fiber ends is avoided or prevented, while an anti-reflective coating, an uncured optical adhesive, or a refractive index matching gel may be applied between the ceramic ferrules. When glass ferrules are used at the fiber joint, the UV-cured optical adhesive may be applied and fully cured between the glass ferrules and the fiber ends.

Abstract: The application discloses a polymer-based optical splitter on a silicon surface. A trench is formed on the silicon surface and a polymer waveguide having three 45 degree reflectors is patterned in the trench. The trench has two slanted side walls opposite to each other. Two reflectors of the polymer waveguide are arranged on the two slanted side walls. An intrusion structure with a slanted front wall is located in the middle of the waveguide and the third reflector is formed on the slanted front wall. The first reflector receives an optical input source, the second reflector is aligned to return light to the end optical receiver. The third reflector functions as a light splitter and is aligned to an intermediate optical receiver. Light splitting ratio is determined by the third reflector size relative to the waveguide cross section near the third reflector. A fabrication method is disclosed thereof.

Abstract: An external endoscope light source system includes light emitting diodes for providing a light output to an endoscope. The light is provided to a fiber optic cable for transmission to the endoscope.

Abstract: Systems, devices, and methods of manufacturing optical engines and laser projectors that are well-suited for use in wearable heads-up displays (WHUDs) are described. Generally, the optical engines of the present disclosure integrate a plurality of laser diodes (e.g., 3 laser diodes, 4 laser diodes) within a single, hermetically or partially hermetically sealed, encapsulated package. Photonic integrated circuits having grating or edge couplers thereon may be used to wavelength multiplex beams of light emitted by the plurality of laser diodes into a coaxially superimposed aggregate beam. A waveguide medium having one or more directly written waveguides may couple light from laser diodes to a photonic integrated circuit, and may optionally hermetically or partially hermetically seal the laser diodes, eliminating the need for a separate seal. Such optical engines may have advantages over existing designs including, for example, smaller volumes, better manufacturability, faster modulation speed, etc.

Abstract: A non-plated region is formed in a certain range from an end of a submount. The non-plated region is a portion where a plating layer is not provided, and thus a substrate of the submount is exposed. An intermediate layer is formed on the plating layer. Furthermore, a plating layer is formed on the intermediate layer. A semiconductor laser is formed on the plating layer. The position of an end of the semiconductor laser substantially coincides with the position of an end of the plating layer (the intermediate layer). That is, even in a case where there is a deviation between an end face of the intermediate layer and an end face of the semiconductor laser, the amount of this deviation is sufficiently smaller than the amount by which the intermediate layer is set back from an end face of the submount.

Abstract: An optical fiber unit includes a plurality of optical fibers; and two binding materials that bind the optical fibers. The two binding materials are wound around the optical fibers in an SZ shape, and are adhered to each other at respective reversed portions that form an adhesive part. The adhesive part has a plurality of intersection points of center lines of the two binding materials.

Abstract: The present invention relates to an optical fiber organizer (1) comprising at least one fiber storage means (4, 10, 19), a first support (3) for supporting the storage means, whereby the storage means (4, 10, 19) are rotatable connected to the first support (3), a second support (2) with at least one cable termination retention means for securing an incoming or outgoing cable having at least one optical fiber, characterized by the first support (3) being rotatably connected to the second support (2).

Abstract: A patch panel may include a tray that is slidable between a retracted position and an extended position on tray supports and features for holding the tray in the retracted position and in the extended position. The patch panel may also include a cassette that is slidable on cassette supports, latches for engaging the cassette to block movement of the cassette and features for disengaging the latches.

Abstract: A system and puller for pulling an optic cable having reinforcing strands, system comprising a collar secured to the cable reinforcing strands and a puller comprising a housing slideable along the cable to abut the collar and a pulling wire attached to the housing for pulling the collar and cable.

Abstract: A fiber optic network architecture for distributing service to local subscribers is disclosed. The architecture includes a plurality of high-fiber count cables connected end-to-end at connectorized coupling locations to form a main cable trunk. The connectorized coupling locations include high-fiber count pass-through connections for optically connecting optical fibers of adjacent ones of the high-fiber count cables end. The connectorized coupling locations also including high-fiber count branch connections for optically connecting optical fibers of the high-fiber count cables to branch locations.

Abstract: An apparatus includes a device mount configured to be coupled to a component. The apparatus also includes an inner hub coupled to the device mount by a first flexure, where the first flexure is configured to permit translational movement of the device mount within the inner hub along a first axis. The apparatus further includes an outer hub coupled to the inner hub by a second flexure, where the second flexure is configured to permit translational movement of the device mount and the inner hub within the outer hub along a second axis different from the first axis. The first and second flexures form a compound nested flexure. The outer hub is configured to be coupled to a support structure and to permit both (i) translational movement of the apparatus along a third axis different from the first and second axes and (ii) tip/tilt adjustment of the apparatus.

Abstract: Some embodiments disclosed herein relate to an auxiliary optical device having one or more optical components, such as lenses, attached to a retainer portion. The retainer portion is configured to removably attach to mobile electronic devices such as mobile phones, tablet computers, media players, and the like. The retainer portion may include a movable mounting portion that achieves or maintains a substantially parallel orientation with respect to a face of a mobile electronic device even when a sidewall of the retainer portion is not parallel with respect to the face. An optical component may be mounted to the mounting portion, and movement of the mounting portion can facilitate a parallel orientation of the optical axis of the optical component with respect to an optical axis of an onboard camera of the mobile device.

Abstract: Digital cameras, optical lens modules for such digital cameras and methods for assembling lens elements in such lens modules. In various embodiments, the digital cameras comprise an optical lens module including N?3 lens elements Li, each lens element comprising a respective front surface S2i?1 and a respective rear surface S2i. In various embodiments the first lens element toward the object side, L1 and its respective front surfaces S1 have optical and/or mechanical properties, such as a clear aperture, a clear height and a mechanical height that are larger than respective properties of following lens elements and surfaces. This is done to achieve a camera with large aperture stop, given a lens and/or camera height.

Abstract: An optical image capturing system with thin mounting components includes an optical imaging lens set providing at least two lenses with refractive power, an image plane, a first lens positioning element and a second lens positioning element. In certain conditions, the optical image capturing system with thin mounting components utilizes the member with a small thickness to design the positioning of the lenses, further effectively elevating the amount of light admitted into the optical image capturing system with thin mounting components and increasing the field of view thereof. The optical image capturing system with thin mounting components has an adequate illuminance and elevates the image quality in order to be applied to the small electronic products or the electronic products with slim border.

Abstract: To obtain an imaging device capable of achieving high functionality of the imaging device by facilitating detection of an incident angle of light transmitted through a grating substrate.

Abstract: An optical image capturing system is provided. In order from an object side to an image side, the optical image capturing system includes a first lens, a second lens, a third lens and a fourth lens. The first lens has a refractive power and the object side thereof may be convex. The second lens and the third lens have refractive power. The object side and the image side of the foregoing lenses may be aspheric. The fourth lens may have positive refractive power. The object side and the image side thereof are aspheric. At least one of surfaces of the fourth lens may have one inflection point. The four lenses have refractive power. When meeting some certain conditions, the optical image capturing system may have outstanding light-gathering ability and an adjustment ability about the optical path in order to elevate the image quality.

Abstract: An optical image capturing system is provided. In order from an object side to an image side, the optical image capturing system includes a first lens, a second lens, a third lens and a fourth lens. The first lens has a refractive power and the object side thereof may be convex. The second lens and the third lens have refractive power. The object side and the image side thereof may be aspheric. The fourth lens may have positive refractive power. The object side and the image side thereof are aspheric. At least one of sides of the fourth lens may have one inflection point. The four lenses have refractive power. When meeting some certain conditions, the optical image capturing system may have outstanding light-gathering ability and an adjustment ability about the optical path in order to elevate the image quality.

Abstract: Provided is a zoom lens including, in order from an object side to an image side: a first lens unit having a positive refractive power; a second lens unit having a negative refractive power; a third lens unit having a positive refractive power; a fourth lens unit having a negative refractive power; a fifth lens unit having a negative refractive power; and a sixth lens unit having a positive refractive power, wherein an interval between adjacent lens units is changed during zooming, wherein the first lens unit is configured to move toward the object side during zooming from a wide angle end to a telephoto end, and wherein a focal length of the first lens unit, a focal length of the sixth lens unit, and a back focus at the wide angle end are appropriately set.

Abstract: An imaging 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, 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 fifth lens element has positive refractive power.

Abstract: Provided is a zoom lens including a plurality of lens units, in which an interval between each pair of adjacent lens units is changed during zooming. The plurality of lens units consist of, in order from an object side to an image side: a first lens unit having a positive refractive power; a second lens unit having a negative refractive power; a third lens unit having a negative refractive power; and a rear lens group including at least one lens unit. An interval between the second lens unit and the third lens unit becomes larger at a telephoto end than at a wide angle end. The third lens unit is moved during focusing. Focal lengths of the second lens unit and the third lens unit, a focal length of the zoom lens at the wide angle end, and a back focus at the wide angle end are appropriately set.

Abstract: The present disclosure relates to the field of optical lenses and discloses a lens module, including a lens barrel, a first lens, a second lens and a third lens, which are accommodated in the lens barrel and are sequentially stacked from an object side to an image side. The first lens includes a first optical portion and a first connection portion surrounding the first optical portion. An image side surface of the first connection portion includes a first planar surface, a first engaging oblique surface extending from the first planar surface in a direction facing towards an optical axis, and a second planar surface extending from the first engaging oblique surface in the direction facing towards the optical axis. The lens module provided by the present disclosure can improve the matching accuracy between the lenses and the lens barrel, and thus guarantees the performance of the lens module.

Abstract: An image pickup apparatus includes an image forming optical system which includes an aperture stop that determines an axial light beam, and one cemented lens, and an image pickup section which is disposed on an image side of the image forming optical system, and which has a surface which is not flat and is curved to be concave toward the image forming optical system, wherein the cemented lens includes in order from an object side, a first lens having a negative refractive power, a second lens, and a third lens having a positive refractive power.