Abstract: A multilayer optical film includes alternating layers of first and second optical layers; the first optical layer comprising a first polyester, wherein the first polyester comprises first dicarboxylate monomers and first diol monomers, and from about 0.25 to less than 10 mol % of the first dicarboxylate monomers have pendant ionic groups; the second optical layer comprising a second polyester; and wherein the first and second optical layers have refractive indices along at least one axis that differ by at least 0.04. The multilayer optical film may be a polarizer film, a reflective polarizer film, a diffuse blend reflective polarizer film, a diffuser film, a brightness enhancing film, a turning film, a mirror film, or a combination thereof. The multilayer optical film may also be a transaction card such as a financial transaction card, an identification card, a key card, or a ticket card. A method of making the multilayer film is also disclosed.

Abstract: Embodiments of articles including a low-contrast anti-reflection coating are disclosed. The coated surface of such articles exhibits a reduced difference in reflectance between a pristine state and when a surface defect is present. In one or more embodiments, the coated surface of such articles exhibits a first average reflectance in the range from about 0.6% to about 6.0% in a pristine condition and a second average reflectance of about 8% or less after removal of a surface thickness of the anti-reflection coating. In other embodiments, the coated substrate exhibits a second average reflectance of about 10% or less, when the coated surface comprises a contaminant. In some embodiments, the coated substrate exhibits a first color coordinate (a*1, b*1) in a pristine condition and a second color coordinate (a*2, b*2) after the presence of a surface defect such that ?a*b* is about 6 or less.

Abstract: Described herein is an anti-reflective film including: a hard coating layer; and a low-refractive layer containing a binder resin and hollow inorganic nanoparticles and solid inorganic nanoparticles dispersed in the binder resin. The hollow and solid inorganic particles are dispersed in the low-refractive layer such that the amount of the solid inorganic nanoparticles positioned close to an interface between the hard coating layer and the low-refractive layer is larger than that of the hollow inorganic nanoparticles. Also described is a manufacturing method of the anti-reflective film including: applying a resin composition containing a photopolymerizable compound or a (co)polymer thereof, a fluorine-containing compound including a photoreactive functional group, a photoinitiator, hollow inorganic nanoparticles, and solid inorganic nanoparticles on a hard coating layer, and drying the applied resin composition at a temperature of 35° C. to 100° C.; and photocuring the dried resin composition.

Abstract: Provided is a fine concave-convex laminate that is reduced in thickness, has excellent antireflection performance, and can suppress scattering and absorption of short-wavelength light. A fine concave-convex laminate comprises a substrate, a first transparent organic layer, and a second transparent organic layer laminated in the stated order, wherein the first transparent organic layer has a fine concave-convex structure at a surface facing the second transparent organic layer, the second transparent organic layer has fine concave-convex structures at both surfaces, and a thickness of a composite layer composed of the first transparent organic layer and the second transparent organic layer is 15 ?m or less.

Abstract: Provided are a polarizing plate protective film including a resin and a coloring agent having an absorption maximum wavelength in a range of 560 to 620 nm or 460 to 520 nm in an amount of 0.1 parts by mass or more with respect to 100 parts by mass of the resin, in which a film thickness is 1 to 18 ?m, and a moisture content is 0.5% by mass or less, a polarizing plate in which the protective film is used, and a liquid crystal display device in which the polarizing plate is used.

Abstract: The present disclosure provides a lens, a manufacturing method thereof, and a camera lens. The lens includes an optical portion for imaging and a fixing portion provided on an outer periphery of the optical portion, and a black matting film for matting is provided on an outer surface of the fixing portion. In the present disclosure, by providing the black matting film for matting on the outer surface of the fixing portion, i.e., by performing matting treatment on the lens, the fixing portion of the lens no longer reflects light. In this way, the lens have an improved matting effect, and thus the stray light can be avoided during the use of the camera lens containing the lens.

Abstract: An optical plate includes at least two first optical portions for respectively covering two light emitting modules, and at least one second optical portion for covering a gap between the light emitting modules. Each first optical portion receives light rays emitted from a respective light emitting module and causes the same to emit along a predetermined direction. The second optical portion has first and second inner inclined surfaces, and first and second outer inclined surfaces. The inner inclined surfaces guide the light rays emitted from the respective light emitting modules toward the outer inclined surfaces, respectively, such that the light rays emitting out therefrom are parallel to the predetermined direction.

Abstract: A multicolor static multiview display and method of multicolor static multiview display operation provide a color static multiview image using diffractive gratings to diffractively scatter light from guided light beams having a selectable color and different radial directions. The multicolor static multiview display includes a light guide configured to guide plurality of guided light beams and a multicolor light source configured to provide the guided light beam plurality having the selectable color and the different radial directions. The multicolor static multiview display further includes a plurality of diffraction gratings configured to provide from a portion of the guided light beams directional light beams having a color, intensities, and principal angular directions corresponding to color view pixels of the color static multiview image.

Abstract: An optical device is provided. The optical device includes a substrate, a plurality of color filters formed on the substrate, and a plurality of spacers formed between the color filters. Each spacer has a first sidewall and a second sidewall opposite to the first sidewall. There is a first angle between the first sidewall of each spacer and a normal line of the top surface of the substrate. There is a second angle between the second sidewall of each spacer and the normal line of the top surface of the substrate. At least one of the first angle and the second angle is increased gradually towards the edge of the substrate.

Abstract: An optical filter includes a substrate including a plurality of pixel areas spaced apart from each other and a light-blocking area between the plurality of pixel areas, a plurality of color filters arranged on a first surface of the substrate and corresponding to the plurality of pixel areas, and a plurality of conversion layers arranged on the first surface of the substrate and corresponding to the plurality of color filters. Each of the conversion layers includes inclined side surfaces. The optical filter further includes a reflective layer on the inclined side surfaces of each of the plurality of conversion layers. The reflective layer extends to the light-blocking area and is arranged consecutively on two adjacent inclined side surfaces from among the inclined side surfaces of the plurality of conversion layers and the light-blocking area between the two adjacent inclined side surfaces.

Abstract: A resin composition includes a near infrared absorbing colorant, an antioxidant, and a resin, in which a content of the near infrared absorbing colorant is 5 mass % or higher with respect to a total solid content of the resin composition, and the antioxidant includes a hindered amine compound.

Abstract: The present invention relates to a near-infrared absorbing article and an optical filter utilizing the same, wherein the near-infrared absorbing article comprises a glass substrate including a compressive stress layer having a predetermined thickness, thus to provide a thin thickness and a certain level of strength or more. Therefore, it has an advantage that can be cut by using a blade or a laser.

Abstract: The invention provides a lighting device (1) comprising a light source configured to provide light source light and a luminescent element (5) comprising an elongated light transmissive body (100), the elongated light transmissive body (100) comprising a side face (140), wherein the elongated light transmissive body (100) comprises a luminescent material (120) configured to convert at least part of the light source light (11) selected from one or more of the UV, visible light, and IR received by the elongated light transmissive body (100) into luminescent material radiation (8). The side face comprises the radiation input face (111), and the body further comprises a first face (141) and a second face (142) defining a length of the body, wherein the second face comprises a first radiation exit window (112).

Abstract: An illumination fiber optics is provided that includes an optical fiber, configured to receive illumination light at a proximal end from a light source; and a light-scattering element, at a distal end of the optical fiber, configured to receive the illumination light from the optical fiber at a proximal end and to emit the illumination light at a distal end in a wide angle. The illumination fiber optics can be prepared by providing an optical fiber, configured to receive illumination light at a proximal end from a light source; and creating a light-scattering element at a distal end of the optical fiber, configured to receive the illumination light from the optical fiber at a proximal end and to emit the illumination light at a distal end in a wide angle.

Abstract: An optical connector device includes: a first optical connector that has a first housing that holds a ferrule; and a second optical connector that has a second housing that houses an FOT and a light guide member. The second housing includes a ferrule insertion portion. The ferrule insertion portion has a ferrule insertion hole into which the ferrule can be inserted. An inner peripheral surface of the ferrule insertion hole has a ferrule fixing structure that fixes the ferrule inside the ferrule insertion hole to suppress play of the ferrule inside the ferrule insertion hole.

Abstract: A backlight unit including: a light guide plate; a wavelength conversion pattern disposed on a lower surface of the light guide plate; and a scattering pattern disposed on the lower surface of the light guide plate, wherein the wavelength conversion pattern and the scattering pattern do not overlap each other in a plan view.

Abstract: A display device includes a display panel, a first light source emitting a first color light, a light guide member including an incident surface into which the first color light is incident, an opposite surface facing the incident surface in a first direction, and an emission surface facing the display panel and connecting the incident surface and the opposite surface, a light control layer converting the first color light to a light having a color different from the first color to output the converted light to the display panel, and a reflective member including a first reflective area including first openings and a second reflective area including second openings. The first reflective area is disposed closer to the incident surface than the second reflective area, and intervals between two adjacent first openings of the first openings decrease along the first direction toward the opposite surface.

Abstract: A stepped light guide illumination system employing a planar sheet of an optically transmissive material having a stepped light guiding structure including one or more parallel arrays of channels. Light is input into the stepped light guiding structure using a number of light sources, such as LEDs, located within the channels and coupled to the stepped light guiding structure at multiple locations. Light is extracted from the stepped light guiding structure by two-dimensional patterns of light extraction features provided in surface areas of the stepped light guiding structure located between the parallel channels.

Abstract: Disclosed are a display panel, a method therefor, and a display device The display device includes: an underlying substrate including a pixel area, a traveling line area; a pixel structure overlying the pixel area, the pixel structure includes pixel elements in matrix; a cover plate on the side of the pixel structure away from the underlying substrate, an orthographical projection of a display area on the cover plate onto the underlying substrate covers the pixel area and the traveling line area, the display area is uniformly divided into sub-display areas in same matrix as pixel elements; optic fiber beams between the pixel structure and the cover plate in one-to-one correspondence to the pixel elements, one end of optic fiber beams is in a light exit area of the pixel element corresponding thereto, the other end is in the sub-display area arranged at same position as the pixel element corresponding thereto.

Abstract: Some embodiments of the disclosure relate to an optical transmission system that operates at a wavelength in the range from 950 nm to 1600 nm and that employs a single-mode optical transmitter and an optical receiver optically coupled to respective ends of a multimode fiber designed for 850 nm multimode operation. The optical transmission system also employs at least one single mode fiber situated within the optical pathway between the optical transmitter and the receiver and coupled to the multimode fiber.

Abstract: Optical waveguides and couplers for delivering light to an array of photonic elements in a photonic integrated device. The photonic integrated device and related instruments and systems may be used to analyze samples in parallel. The photonic integrated device may include a grating coupler configured to receive light from an external light source and optically couple with multiple waveguides configured to optically couple with sample wells of the photonic integrated device.

Abstract: In integrated optical structures (e.g., silicon-to-silicon-nitride mode converters) implemented in semiconductor-on-insulator substrates, wire waveguides whose sidewalls substantially consist of portions coinciding with crystallographic planes and do not extend laterally beyond the top surface of the wire waveguide may provide benefits in performance and/or manufacturing needs. Such wire waveguides may be manufactured, e.g., using a dry-etch of the semiconductor device layer down to the insulator layer to form a wire waveguide with exposed sidewalls, followed by a smoothing crystallographic wet etch.

Abstract: A grating-coupled light guide concentrates light and diffractively redirects the concentrated light at a non-zero propagation angle as guided light having a predetermined spread angle. The grating-coupled light guide includes a light guide, an optical concentrator, and a grating coupler. The optical concentrator is configured to concentrate light from a light source as concentrated light and the grating coupler is configured to diffractively redirect the concentrated light into the light guide as the guided light. Characteristics of the optical concentrator and grating coupler are configured in combination to determine the non-zero propagation angle and predetermined spread angle. A grating-coupled display system further includes an array of light valves configured to modulate emitted light as a displayed image.

Abstract: Embodiments of the present disclosure provide a silicon-based optical antenna with a reflective layer and a preparation method therefor. The silicon-based optical antenna comprises: an SOI substrate, the SOI substrate at least comprises a bottom silicon layer, a buried oxide layer, and a top silicon layer, the buried oxide layer is located between the bottom silicon layer and the top silicon layer, the top silicon layer is etched to form a row of waveguides, spacings between the waveguides in the row of the waveguides are in an uneven distribution, each waveguide of the row of the waveguides is etched with gratings, the bottom silicon layer is formed with a groove directly reaching a surface of the buried oxide layer facing the bottom silicon layer, and the surface of the buried oxide layer in the groove is formed with a metal reflective layer.

Abstract: An optical fiber connector adapted to use with two optical fibers includes a base seat, a positioning member, and a joint unit. The base seat includes a tubular wall defining an axial hole and two extension walls defining an accommodation space in spatial communication with the axial hole. The positioning member is disposed in the axial hole and defines a channel permitting the optical fibers to extend therethrough. The joint unit includes two central pins and two sleeves. The central pins are adapted to be connected respectively to the optical fibers. The sleeves are sleeved respectively on the central pins and are detachably mounted to the base seat such that positions of the central pins relative to each other are fixed.

Abstract: An optical fiber connector, comprising a main shaft, a connecting piece, and a lock cap. The main shaft comprises a head end and a tail end that is away from the head end. A through hole extending from the head end to the tail end is disposed in the main shaft. The connecting piece is fixedly connected to the head end and partially accommodated in the through hole. The lock cap includes a sealing portion and a connection portion that is connected to a side of the sealing portion. The sealing portion is rotationally connected to an outer side of the head end. The connection portion is located on a side that is of the head end and that is away from the tail end.

Abstract: A dust shutter plate biased by a spring plate closed within a port of an adapter assembly with one or more receptacle ports configured to received and secure a fiber optic connector. The dust shutter plate may be coated with a cloth or gel to reduce light transmission losses or both. The angle of the spring plate ensures the plate coated makes contact with the ferrule endface to remove debris and coat the optical fibers at the endface. And if not a coated dust plate, the spring is angled to ensure the ferrule endface does not contact the dust shutter plate surface and damage the optical fiber therein. The dust shutter plate may have a plural of grooves on the connector facing side of the shutter plate.

Abstract: A cover for a fiber optic cable connection includes a cap portion having a first housing portion having a first housing wall, a second housing portion having a second housing wall, and a coupler portion that couples the first housing portion and the second housing portion in a closed position. The first housing wall and the second housing wall define a housing opening. A sealing assembly is received within the housing opening and has an inner surface and an outer surface. The inner surface defines a sealing opening that receives a fiber optic cable. The outer surface contacts at least one of the first housing wall or the second housing wall when the sealing assembly is received within the housing opening. The sealing assembly creates an additional seal when the first housing wall and the second housing wall compress the sealing assembly onto a union portion.

Abstract: The present disclosure relates to a ruggedized/hardened fiber optic connection system designed to reduce cost. In one example, selected features of a fiber optic adapter are integrated with a wall (24) of an enclosure (22). The adapter comprises a sleeve port (26) into which an optical adapter subassembly is inserted. The subassembly comprises a sleeve part (44) which is inserted into the sleeve, a ferrule alignment sleeve (48) which is inserted into the sleeve part, a ferrule (55) with hub which is inserted into the alignment sleeve, and fixing clip (46) securing the ferrule with hub into the alignment sleeve and the sleeve part.

Abstract: The present disclosure is generally directed to an optical transceiver module that includes a mounting section for aligning and coupling to associated TOSA modules. In particular, an embodiment of the present disclosure includes TOSA and ROSA components disposed on a printed circuit board assembly (PCBA). The PCBA includes a plurality of grooves at a optical coupling end to provide a TOSA mounting section. Each of the grooves provides at least one mating surface to receive and couple to an associated TOSA module. Opposite the optical coupling end, the PCBA includes an electric coupling section for coupling to, for example, a transmit (RX) circuit that provides one or more electrical signals to drive TOSA modules coupled to the TOSA mounting section.

Abstract: A cable that includes a telecommunication section including at least one optical fiber; at least two electric sections each including at least one bundle of carbon nanotube yarns; and a matrix embedding the telecommunication section and the at least two electric sections. The telecommunication section is arranged in the matrix between two electric sections. The optical fiber and the bundles of carbon nanotube yarns are co-planar to form a ribbon.

Abstract: Provided is an optical fiber ribbon capable of achieving higher density and reduction in diameter and accurately placing optical fibers in V-shape grooves in a fusion machine without failure. The optical fiber ribbon 1 includes three or more of optical fibers 2 arranged in parallel and connecting portions 3 connecting adjacent two optical fibers 2 together, the connecting portions 3 being intermittently provided in each of a ribbon longitudinal direction and a ribbon width direction. The connecting portions 3 are each formed in such a manner as to fill resin into a gap S formed between adjacent two optical fibers 2, and both surfaces of the respective connecting portions 3 are each formed into a recess having a concave shape curved toward a center of the gap S to separate from lines 4,5 each connecting contact points of the optical fibers 2 when being placed on a horizontal surface.

Abstract: A slot type optical cable includes: an optical fiber; a slot rod that includes a plurality of ribs forming a groove in which the optical fiber is accommodatable; and a cable jacket that is provided around the slot rod.

Abstract: In one aspect of the disclosure a communications network or topology is presented that includes one or more modular or adaptable smart pole assemblies. Each smart pole assembly can include a pole structure supporting a data-communications module and having a hollow interior through which a connectorized vertical cabling structure extends. Jumper cables can be provided to connect components associated with the data-communications module with the vertical cabling structure such that no cabling or wiring has to be removed or installed from the pole hollow interior when components are added, removed, or replaced. The vertical cabling structure or harness can include one or more of connectorized fiber optic cables, DC power cables, and connectorized Category 6 cables. In one example, the fiber optic cables are terminated with hardened multi-fiber optical connectors at each end.

Abstract: A cable management unit including a support assembly for mounting a patch panel, such as to a wall. The support assembly may include first and second anchor members adapted to be anchored to the wall, and first and second support arms hingedly coupled to the first and second anchor members at first and second hinge points, respectively. The first and second support arms may be adapted to be coupled to the patch panel. A chassis the patch panel may be supported by the first and second support arms. The first and second support arms may be configured to pivot about the first and second hinge points respectively between storage and access positions. The first and second support arms may extend outward from the wall in the access position and may be substantially parallel to the wall in the storage position.

Abstract: A cable management bracket that routes cables in a cabinet or rack. The cable management bracket includes an inner mounting rail and an outer mounting rail. The outer mounting rail is secured to the inner mounting rail by fasteners. The inner mounting rail has a top flange, first and second end flanges, a bottom flange, and a side surface. The outer mounting rail has a top flange, an end flange, a bottom flange, and a side surface. The side surfaces of the inner mounting rail and the outer mounting rail have a plurality of mounting features for securing bundling clips that receive a plurality of cables.

Abstract: Apparatus for establishing optical connection between optical fibers, the apparatus comprising: a first array comprising a plurality of slack management units (SMU), each having a holding socket for holding an optical end connector of an optical fiber and configured to reel in a length of fiber released when the optical end connector is removed from the holding socket; a second array comprising a plurality of coupling sockets, each configured to hold an optical end of an optical fiber; and a pick and place grabber controllable to grab an optical end connector seated in a holding socket of any SMU in the first array, move the optical end connector into any coupling socket in the second array to establish an optical connection between the optical fiber connected to the optical end connector, and an optical end of an optical fiber held in the coupling socket; at least one identification (ID) tag; an ID reader operable to interrogate each of the at least one ID tag; a controller configured to control the ID reade

Abstract: A safety device for modules that store windings of communication lines, includes a metallic rod whose ends are configured to receive metallic screws to secure the rod on a base of a given module. End sections of the rod extend to a height at least equal to the height of the stored windings. Intermediate sections of the rod extend in opposite directions from the end sections, substantially parallel to the module base. Outer ends of the intermediate sections at least coincide with the outer periphery of the stored windings. A central section of the rod has opposite ends adjoining the outer ends of the intermediate sections. The central section rises over a path that at least coincides with the outer periphery of the stored windings. The end sections of the rod capture the windings, and the central section prevents them from dropping below the module during a building fire.

Abstract: A photosensitive chip includes a photosensitive region, a non-photosensitive region and an adhesive layer. The non-photosensitive region protrudes from a periphery of the photosensitive region to surround the photosensitive region. The adhesive layer covers the non-photosensitive region to absorb light and reduce an intensity of light reflected from the adhesive layer. The disclosure also provides a lens module having the photosensitive chip, and an electronic device having the lens module.

Abstract: A lens module includes a lens holder and a lens. The lens holder comprises a through-hole. The lens holder comprises an inner wall surrounding to define the through-hole. A first thread is formed on the inner wall. A second thread is formed on an outer sidewall of the lens. The first thread cooperates with the second thread to fix the lens on the lens holder. At least one first slot is defined on the outer sidewall of the lens and around a periphery of the lens, and a seal ring is received in each first slot. At least one second slot is defined on the outer sidewall of the lens along a direction of an optic axis of the lens. Each second slot passes through each first slot to form a receiving space. The disclosure also provides an electronic device having the lens module.

Abstract: An optical element retainer includes a ring body defined about a central axis. The ring body includes an inner diametric surface, an outer diametric surface opposed to the inner diametric surface, a first annular axial surface, and a plurality of flexures extending from a second annular axial surface opposite the first annular axial surface.

Abstract: A lightweight lens barrel with two focus lenses; a first lens holding frame for holding a first lens, a first drive unit for causing the first lens holding frame to move in the optical axis direction, a second lens holding frame for holding a second lens, a second drive unit for causing the second lens holding frame to move in the optical axis direction, and a moving tube with the first driving unit and the second driving unit, and movable in the optical axis direction, wherein the first lens holding frame and the second lens holding frame are each movable in the optical axis direction with respect to the moving tube.

Abstract: A focus mechanism includes an inner barrel and an outer barrel that holds the inner barrel to allow the inner barrel to move along an optical axis. An inner peripheral surface of the outer barrel includes a medium-diameter portion having an inner diameter and a small-diameter portion having an inner diameter. The small-diameter portion is continuous to the medium-diameter portion, is positioned on a back side of the medium-diameter portion in an insertion direction ID where the inner barrel is inserted into the outer barrel. The small-diameter portion has an inner diameter that allows an X-ring absorbing the rattling of the inner barrel to be in pressure contact with the small-diameter portion in a case where the inner barrel is inserted into the outer barrel in a state where the X-ring is fitted to a groove.

Abstract: A lens moving apparatus, including a bobbin; a first coil mounted at an outer circumference of the bobbin; a first magnet moving the bobbin in a first direction parallel to an optical axis by interaction with the first coil; a housing supporting the first magnet; an upper elastic member disposed at a top surface of the bobbin and at a top surface of the housing; a lower elastic member disposed at a bottom surface of the bobbin and at a bottom surface of the housing; and first and second winding protrusions disposed with being opposite to each other, the first coil being wound on the first and second winding protrusions.

Abstract: An electronic device includes at least one optical lens assembly. The optical lens assembly includes four lens elements, and the four lens elements are, in order from an outside to an inside, a first lens element, a second lens element, a third lens element and a fourth lens element. The first lens element has an outside surface being convex in a paraxial region thereof. The second lens element has an inside surface being convex in a paraxial region thereof. The fourth lens element has an inside surface being concave in a paraxial region thereof, wherein at least one of an outside surface and the inside surface of the fourth lens element includes at least one critical point in an off-axis region thereof.

Abstract: A molded photosensitive assembly includes a supporting member, at least a circuit board, at least two photosensitive units, at least two lead wires, and a mold sealer. The photosensitive units are coupled at the chip coupling area of the circuit board. The lead wires are electrically connected the photosensitive units at the chip coupling area of the circuit board. The mold sealer includes a main mold body and has two optical windows. When the main mold body is formed, the lead wires, the circuit board and the photosensitive units are sealed and molded by the main mold body of the mold sealer, such that after the main mold body is formed, the main mold body and at least a portion of the circuit board are integrally formed together at a position that the photosensitive units are aligned with the optical windows respectively.

Abstract: A camera lens is provided, including first and second lenses sequentially stacked along a direction from an image side to an object side. The first lens includes a first optical portion for imaging. An outer contour of the first lens and an outer contour of the second lens have a same shape that is square. The first optical portion of the first lens has a circular edge tangent to the square outer contour of the first lens. With the present disclosure, the first optical portion of the first lens is the largest optical portion among all lenses, and a non-optical portion of the first lens having the largest optical portion can be removed. In this way, a horizontal length and a vertical length of each lens can be reduced, and thus a horizontal length and a vertical length of an entire camera lens can be reduced.

Abstract: The present disclosure is related to a lens systems. The lens system includes, in order from an object side to an image side, a first lens group G1 having negative refractive power, a second lens group G2 having positive refractive power, a third lens group G3 having positive refractive power, and the lens system satisfies the a ? f 1 f ? ? b , c ? f 2 f ? ? d , e ? f 3 f ? ? f , following condition: and at least partial of G3 is made of material satisfying the following condition: Vd>g and dn/dt?h, wherein a, b, c, d, e, f, g and h are constants, f1 represents a focal length of G1, f2 represents a focal length of G2, f3 represents a focal length of G3, f? represents a focal length of the lens system, Vd represents an abbe constant, n represents a refractive index, t represents temperature, and dn/dt represents a differential of refractive indices against temperature.

Abstract: The optical lens assembly may include a first lens having a negative refractive power, a second lens having a positive refractive power, a third lens having a negative refractive power, a fourth lens having a refractive power, a fifth lens having a refractive power, a sixth lens having a negative refractive power, and a stop disposed at an object side of the first lens.

Abstract: An optical lens system using ultraviolet for imaging includes, in order from a magnified side to a minified side, a first lens group of positive refractive power and a second lens group of positive refractive power. The second lens group includes at least one cemented lens and at least one aspheric lens. The optical lens system satisfies the condition of TE(?=400)>94%, where TE(?=400) denotes an overall transmittance of all of the lenses in the optical lens system measured at a wavelength of 400 nm and is equal to a product of respective internal transmittances of all of the lenses measured at a wavelength of 400 nm.