Abstract: According to an embodiment, an image forming apparatus having a function to erase an image formed on a recoding medium is provided. The image forming apparatus has an operation panel which, in a first mode in which an image forming process and an erasing process are not executable, accepts selection of any mode of a second mode in which the image forming process and the erasing process are executable, and a third mode in which the image forming process not executable and the erasing process is executable.

Abstract: An image forming apparatus includes an image forming unit that forms an image on a sheet on the basis of a job and a controller that manages the job and controls the formation of the image. The controller enables a sample discharge and determines whether to change a sample discharge interval which is set in the sample discharge on the basis of information related to the image when the job is executed.

Abstract: An information processing apparatus instructs a printing apparatus to stop print processing for a print command to be processed by the printing apparatus via a universal serial bus, if status information indicating a status of the printing apparatus indicates that the printing apparatus is in a state where the print processing cannot be continued, wherein the print command is generated by a printer driver configured not to include a language monitor.

Abstract: A vendor provides, and an operator obtains a method dedicated printer bundle. The printer bundle includes a printer having a key interface, an ink supply, and a key for association with the printer through the key interface. The key is provided with key data pertaining to an authorized page count. The printer operator is allowed to acquire additional authorized pages as needed. When the printer ink supply becomes depleted, the printer operator is provided with additional ink at no or insignificant cost.

Abstract: A print data processing system includes plural intermediate data generation units, an allocation unit, one or more memories, a print image conversion unit, and a reprint controller. Each intermediate data generation unit interprets PDL data and generates intermediate data in units of pages. The allocation unit allocates processes of interpreting the PDL data to the intermediate data generation units in units of pages and causes the intermediate data generation units to execute processes of interpreting pages in parallel. The one or more memories store pieces of intermediate data of the individual pages. The print image conversion unit acquires the pieces of intermediate data, converts the acquired data to print image data, and supplies the print image data to a printer. The reprint controller performs control to cause the print image conversion unit to reacquire the pieces of intermediate data and to reconvert the reacquired data to the print image data.

Abstract: A system and related method are provided for managing technical documents. The system includes a graphical screen divided into a plurality of document units arranged in a m×n manner, where both m and n are integers larger than 1. Each of the document units occupies a screen area for displaying document information of a document, and said document information including important information, at least one related drawing or both of the document.

Abstract: The image forming apparatus includes an image processing portion for creating image data of a document read by an image reading portion and a communication portion for transmitting the created image data to a server or cloud, and obtains the image data saved in the server or the like to perform required processing, in which a reduced image generating portion for creating reduced image data based on the created image data, a main storage portion for linking the reduced image data and a saving destination of the data serving as original thereof for storage, and a display portion for displaying an operation screen are included, and the reduced image data stored in the main storage portion is displayed on the display portion to select image data for which the required processing is performed.

Abstract: The present invention provides a layout information calibrating method and device, wherein the calibrating method comprises: obtaining the parameter calibrating standard of layout information and layout information to be calibrated; matching the layout information to be calibrated with the parameter calibrating standard of the layout information; if the layout information to be calibrated is consistent with the parameter calibrating standard of the layout information, sending the information indicating the layout information is successfully calibrated; if the layout information to be calibrated is inconsistent with the parameter calibrating standard of the layout information, sending a reminder indicating the layout information is not successfully calibrated.

Abstract: A printing apparatus is an apparatus capable of performing double-sided printing on a sheet, and is provided with a receiving portion and a control portion. The receiving portion receives an instruction for changing a sheet having one side printed that is set to a paper feed tray into a sheet having both sides printed with same printing content. The control portion performs control, when the instruction is received, to feed the sheet having one side printed from the paper feed tray, and when the fed sheet is an odd-numbered page and is a final page, to discharge the sheet without newly performing printing, and when the fed sheet is an odd-numbered page and is not a final page, to print information printed on a next even-numbered page on a back side of the sheet.

Abstract: Provided is a single-motor-driven gravure cylinder chuck mechanism that is enhanced in contact tightness of chuck cones with respect to an unprocessed plate-making roll in each processing unit of a fully automatic plate-making system. The gravure cylinder chuck mechanism is to be used for a processing unit of the fully automatic gravure plate-making processing system for manufacturing a plate-making roll by performing a series of processes on an unprocessed plate-making roll. The gravure cylinder chuck mechanism includes: a pair of chuck cones provided to be opposed to each other, for chucking both end surfaces of the unprocessed plate-making roll; chuck cone moving means for allowing the pair of chuck cones to be freely brought into contact with and separated away from both the end surfaces of the unprocessed plate-making roll; and a single motor for driving the chuck cone moving means.

Abstract: Provided is an exposing device capable of enhancing usage efficiency of light and preventing degradation of imaging property due to a misalignment with a photosensitive drum. The exposing device includes: a laser array including multiple lasers arranged in a predetermined direction; and an optical system guiding light emitted from the each of the multiple lasers to a photosensitive member and focusing the light on the photosensitive member, in which the optical system includes multiple phase modulation elements to decrease a phase lag added in proportion to distance from a center axis that is defined by a principal light beam emitted from the each of the multiple lasers.

Abstract: An image scanning system may include an image scanner and a terminal. In some arrangements, upon receiving a scan start command to start scanning the document, the image scanner may generate scan image data. Additionally or alternatively, the image scanner may obtain notification information related to a location in the storage where the scan image data is stored and transmit the notification information to a terminal device identified by destination information. The image scanner may subsequently receive a request receive a request for the scan image data from the terminal device based on the notification information and transmit the scan image data stored in the storage at the location indicated by the notification information to the terminal device.

Abstract: A document reading unit included in an image forming apparatus and operated with a method of detecting an original document, includes an original document table, a moving irradiation unit having multiple block light sources moving in a sub scanning direction while irradiating the original document, an image sensor receiving reflected light, and a controller that starts a length specifying operation with the moving irradiation unit located at a position facing the original document, sequentially turns on the block light sources, obtains an amount of reflected light under lighting conditions of each block light sources, and determines the length of the original document in the main scanning direction. While the moving irradiation unit is moving in the sub scanning direction, the image sensor receives the reflected light on a region of the original document in the sub scanning direction under each lighting condition during the length specifying operation.

Abstract: An image processing device includes an image-modification processing unit and an adjustment unit. The image-modification processing unit executes first image-modification processing wherein pixels are inserted to or deleted from a subject image in a first direction or pixels in the subject image are shifted in the first direction and second image modification processing wherein pixels in the subject image are shifted in a second direction. The adjustment unit adjusts a position of a shift-border along which the pixels are shifted in the second image-modification processing on the basis of a position of each step in an image caused in the first image-modification processing.

Abstract: Encoding of quantum algorithm and devices therefrom are provided. The encoding includes receiving a unitary matrix operator representing the quantum algorithm, each row of the unitary matrix operator defining a superposition of basis state vectors for transforming input states to output states. The encoding also includes recording rows of the unitary matrix operator by applying, to a volume holographic element, a combination of an ith one of n reference waves and a superposition of n signal waves defined by the superposition defined in an ith row of the unitary matrix operator. The n signal waves are a first set of n plane waves lying on a first conical surface having a first half angle and the n reference waves are a second set of n plane waves lying on a second conical surface, concentric with the first conical surface, with a second half angle different that the first half angle.

Abstract: Technologies are generally described for generating an image in a holographic imaging device by causing multiple reflections of a hologram reconstruction light on one side of a display panel in the holographic imaging device. An example device may include a display panel, a semi-transparent mirror layer on the display panel, a mirror layer at a side of the semi-transparent mirror layer opposite to the display panel, and a light irradiation unit opposite to the semi-transparent mirror layer. The light irradiation unit may irradiate a hologram reconstruction light on the semi-transparent mirror layer at a predetermined incident angle. The semi-transparent mirror layer may reflect a portion of the hologram reconstruction light such that the reflected portion of the hologram reconstruction light may be incident on the mirror layer. The semi-transparent mirror layer may transmit the other portion of the hologram reconstruction light to cause interference in the hologram.

Abstract: Systems and methods of performing logical operations with photonic quantum logic gates. The logic gates utilize photon states, usually orthogonal linearly polarized states, to selectively enact self-interference operations whose outputs can be altered by inducing phase shifts in one or more portions of the section of the logic gate where the photon states undergo self-interference. The polarization direction switchings are differentially enacted and/or not enacted, in groupings of switches, to perform various logic operations. Additionally, networked logic gates with interrelated self-interference section phase shifts and output states are described that provide additional capabilities.

Abstract: Methods, systems, and products illuminate display devices. Light in a waveguide is frustrated to illuminate an array of picture elements.

Abstract: An electro-optic assembly that includes a front substrate having a first surface and a second surface substantially parallel to the first surface; a rear substrate spaced from and substantially parallel to the front substrate, and having a third surface and a fourth surface substantially parallel to the third surface; and a carrier operably connected to at least one of the front substrate and the rear substrate. Further, the electro-optic assembly includes an appliqué layer directly on at least a first portion of the fourth surface and having an opening over a second portion of the fourth surface; and an assembly component that is coupled to the carrier, behind the fourth surface and substantially coincident with the opening. The portions of the fourth surface are in a transmissive region of the rear substrate, and the front and rear substrates define a cavity at least partially filled with an electro-optic material.

Abstract: This disclosure provides spacers for smart windows. In one aspect, a window assembly includes a first substantially transparent substrate having an optically switchable device on a surface of the first substrate. The optically switchable device includes electrodes. A first electrode of the electrodes has a length about the length of a side of the optically switchable device. The window assembly further includes a second substantially transparent substrate a metal spacer between the first and the second substrates. The metal spacer has a substantially rectangular cross section, with one side of the metal spacer including a recess configured to accommodate the length of the first electrode such that there is no contact between the first electrode and the metal spacer. A primary seal material bonds the first substrate to the metal spacer and bonds the second substrate to the metal spacer.

Abstract: An optical phased array formed of a large number of nanophotonic antenna elements can be used to project complex images into the far field. These nanophotonic phased arrays, including the nanophotonic antenna elements and waveguides, can be formed on a single chip of silicon using complementary metal-oxide-semiconductor (CMOS) processes. Directional couplers evanescently couple light from the waveguides to the nanophotonic antenna elements, which emit the light as beams with phases and amplitudes selected so that the emitted beams interfere in the far field to produce the desired pattern. In some cases, each antenna in the phased array may be optically coupled to a corresponding variable delay line, such as a thermo-optically tuned waveguide or a liquid-filled cell, which can be used to vary the phase of the antenna's output (and the resulting far-field interference pattern).

Abstract: A system and method for an optical component that masks non-active portions of a display and provides an electrical path for one or more display circuits. In one embodiment an optical device includes a substrate, a plurality of optical elements on the substrate, each optical element having an optical characteristic which changes in response to a voltage applied to the optical element, and a light-absorbing, electrically-conductive optical mask disposed on the substrate and offset from the plurality of optical elements, the optical mask electrically coupled to one or more of the optical elements to provide electrical paths for applying voltages to the optical elements. In another embodiment, a method of providing an electrical signal to optical elements of a display comprises electrically coupling an electrically-conductive light-absorbing mask to one or more optical elements, and applying a voltage to the mask to activate the one or more optical elements.

Abstract: A method of providing a layer of a first fluid and a layer of a second fluid on a first area of a support plate of an electrowetting device includes providing an emulsion of dispersed first fluid and continuous second fluid, the emulsion including an amount of the second fluid for forming the layer of the second fluid.

Abstract: A microelectromechanical (MEMS) device has a movable member supported in elevated position spaced by a sloped support structure above a substrate. The movable member may be a polished metallic plate such as a mirror of a digital micromirror device (DMD) supported by a flexible hinge above an integrated circuit wafer die region. The plate may supported centrally at a raised juncture of two upwardly oppositely directed and symmetrically converging hinge legs for pivoting about a parallel axis. The plate may also be supported at a top end of a hinge leg in cantilever fashion, for pivoting about a perpendicular axis. Optional spring tips are provided for limiting movement and recovering energy. In a described fabrication method, hinge material is deposited over a sacrificial layer that has been directly or indirectly patterned using a grayscale photoresist exposure to define sloped surfaces which provide a template for configuring the hinge and optional other components.

Abstract: A method for modulating light using a micro-electro-mechanical structure includes providing a plurality of deformable mirror elements (30) having an L-shaped cross section. Each of the deformable mirror elements are comprised of a pedestal (32) and an elongated ribbon (33). Each of the ribbons has a reflective surface (35). A beam of light is directed on the deformable mirror elements. The deformable mirror elements is flexed about an axis parallel to a long dimension of the ribbons to vary a curvature of at least one of the reflective ribbons.

Abstract: A system for modulating light using a micro-electro-mechanical structure includes a plurality of deformable mirror elements (30) having an L-shaped cross section. Each of the deformable mirror elements are comprised of a pedestal (32) and an elongated ribbon (33). Each of the ribbons has a reflective surface (35). A beam of light is directed on the deformable mirror elements. The deformable mirror elements is flexed about an axis parallel to a long dimension of the ribbons to vary a curvature of at least one of the reflective ribbons.

Abstract: High display duty ratio and fast optical response electrophoretic display technology is presented by using an anti-ferroelectric coupling torque. The invention also consequently enables fine pixel pitch resolution by introducing photo lithography based switching element preparation method. Newly introduced casting film method for optical switching element preparation enables extremely fine size of switching element based on current well-established flat panel display volume manufacturing process.

Abstract: An optical controller includes: a transparent lower substrate with a first electrode pattern; a transparent upper substrate with a transparent electrode; a plurality of divided regions separated by partitions on the transparent lower substrate; a medium containing charged particles at less than 5 wt % is in the plurality of divided regions and between the first electrode pattern and the transparent electrode; and a seal surrounding the plurality of divided regions and bonded to the first and second substrates.

Abstract: An electrophoretic display apparatus is suitable for being electrically connected to an external circuit and includes a drive array substrate, an electrophoretic display film and a first optical adhesive layer. The electrophoretic display film is disposed on the drive array substrate and includes a flexible substrate and a display medium layer. The flexible substrate has a disposed region and a bonding region. The external circuit is disposed between the flexible substrate and the drive array substrate, located in the bonding region and extends outside the drive array substrate. The display medium layer is disposed between the flexible substrate and the drive array substrate and located in the disposed region. The first optical adhesive layer is disposed between the display medium layer and the drive array substrate. A thickness of the external circuit is substantially a sum of that of the display medium layer and the first optical adhesive layer.

Abstract: A laser utilizes a cavity design which allows the stable generation of high peak power pulses from mode-locked multi-mode fiber lasers, greatly extending the peak power limits of conventional mode-locked single-mode fiber lasers. Mode-locking may be induced by insertion of a saturable absorber into the cavity and by inserting one or more mode-filters to ensure the oscillation of the fundamental mode in the multi-mode fiber. The probability of damage of the absorber may be minimized by the insertion of an additional semiconductor optical power limiter into the cavity.

Abstract: A filter wheel assembly includes a filter wheel and an optical assembly. The filter wheel includes a plurality of viewing openings. The optical assembly includes an optical element secured within an aperture of a housing. The optical assembly is securable to the filter wheel at a viewing opening by a magnetic force. An optical apparatus includes an optical assembly receiver and first and second optical assemblies. The first optical assembly is securable to the optical assembly receiver and the second optical assembly is securable to the first optical assembly by a magnetic force to align the optical assembly receiver and the optical assemblies. Methods of aligning apertures of optical assemblies with viewing openings of a filter wheel or an optical assembly receiver and securing the optical assemblies to the filter wheel or the optical assembly receiver using a magnetic force.

Abstract: A solid state illumination system is provided as a replacement for conventional arc light, metal halide and Xenon white-light sources for applications in life sciences including, microscopy, fluorescence microscopy, and endoscopy. The solid state illumination system generates high quality white light output from LED light sources. In an embodiment, the solid state illumination system is coupled to a microscope using a liquid light guide. The liquid light guide is coupled to a microscope using an adjustable collimator which optimizes the light output for input to the optical train of the microscope.

Abstract: The invention relates to a laser scanning microscope (LSM), consisting of at least one light source, from which an illumination beam path in the direction of a sample originates, at least one detection beam path for passing sample light, preferably fluorescence light, onto a detector arrangement, it main colour separator for separating the illumination and detection beam paths, a microlens array for generating a light source grid composed of at least two light sources, a scanner for generating a relative movement between the illumination light and the sample in at least one direction, and a microscope objective, wherein the lens array is arranged in at common part of illumination and detection beam paths.

Abstract: An illuminator for a transmitted light microscope for producing stereo viewing as well as motion parallax 3D perception, using a generally pyramid-shaped mirror having a plurality of facets and light source adjacent a plurality of the facets and a computer-driven electronic circuit for controlling the on/off status of said light sources.

Abstract: The invention relates to an apparatus for transmitted light illumination for light microscopes, in particular stereo microscopes or macroscopes, having changing effective entrance pupil of an objective. The apparatus has a light source for emitting an illuminating light beam, a housing, in which the light source is arranged, a holding device for holding a sample to be examined and at least one diaphragm edge for trimming the illuminating light beam, wherein the diaphragm edge extends transversely to an optical axis of a light microscope, which can be positioned in an operating state on the device for transmitted light illumination, and wherein a beam path of the illuminating light between the diaphragm edge and the sample held by the holding device is free from adjustable beam focussing components.

Abstract: The absorptive wire-grid polarizer includes a periodic structure formed on a substrate surface of a dielectric substrate and constituted by a metal and one or more dielectric materials. The periodic structure has a one-dimensional grating structure in which, in a sectional plane orthogonal to a normal to the substrate surface, grating portions of a metal grating formed of the metal and grating portions of dielectric gratings formed of the one or more dielectric materials are one-dimensionally arranged with a grating period P. The Conditions of nm?1.0, km?2.0, 0.01?FF?0.25, Nb?1.40, and h?250 [nm] are satisfied where h represents an entire height of the metal and dielectric gratings, nm represents a refractive index of a real part of a complex refractive index of the metal, km represents an extinction coefficient of an imaginary part of the complex refractive index, and nb represents an average refractive index of the dielectric grating.

Abstract: A vehicle exterior imaging apparatus includes a photo-receiving element, a transparent member that is disposed on a front face of the photo-receiving element and introduces light into it, and a movable body movable between a covering position for covering part or all of a front face of the transparent member with the movable body being spaced apart from the transparent member, and an evacuated position evacuating from the front face of the transparent member with respect to the covering position. The movable body has a higher surface wettability in a portion opposing to the transparent member at the covering position than the one of the front face of the transparent member. The movable body evacuates water adhered to the surface of the transparent member in a moving direction of the movable body during the movement of the movable body from the covering position to the evacuated position.

Abstract: Provided is an optical device and the like which can suppress a decrease in optical performance even under high-temperature heating environments, such as a ref low process. Since at least one of compound lenses 10 and 110 made of heat-resistant resin includes an antireflection structure 51 as a fine asperity structure layer on an inside surface facing a space, even if a subsequent heat treatment is performed, a decrease in optical performance of the lens due to wrinkling can be prevented unlike a case in which an antireflection film is provided. The antireflection structure 51 is covered, for example, by a thin protective layer 52.

Abstract: A base substrate, a lid that forms an internal space capable of housing a device (variable-wavelength interference filter), and a brazing filler that joins the lid to the base substrate are provided. The lid has: a lid joining portion having a base facing surface that faces the base substrate, an inner lateral surface that continues at an inner end on the side of the internal space of the base facing surface and faces the internal space, an outer lateral surface, and an upper surface; and a lid sidewall portion standing up in a direction away from the base substrate from the upper surface of the lid joining portion. The brazing filler is provided along the base facing surface and the outer lateral surface from the inner end to the upper end of the outer lateral surface via an outer end opposite to the inner end.

Abstract: The object is to obtain an optical reflective film having both productivity and optical characteristic which achieves a lower production cost and a larger area, and reduces unevenness in the reflectivity of visible light regions. An optical reflective film including at least one unit in which a high refractive index layer and a low refractive index layer are alternately laminated on a film support, at least one of the high refractive index layer and the low refractive index layer including a water-soluble polymer and a metal oxide particle, wherein a mixed region of the nigh refractive index layer and the low refractive index layer is formed between the high refractive index layer and the low refractive index layer by a simultaneous multilayer coating of the high refractive index layer and the low refractive index layer, and the optical reflective film has at least one region in visible light wavelength regions and 30% or more and 100% or less of a mean reflectivity thereof.

Abstract: A variable length light shield is disclosed for an electro-optical sensor within a nose cone. The light shield includes a base, a telescopic shade supported by the base, and a ring rotatably supported about the base. The light shield also includes a guide tube disposed proximate the ring with an end extending away from the ring about a side of the telescopic shade. The light shield further includes an extension spring supported by the guide tube with an end coupled to the telescopic shade. Additionally, the light shield includes a cable extending through the guide tube and the extension spring, with one end of the cable coupled to the ring and another end of the cable coupled to the telescopic shade. The extension spring is configured to exert a force on the telescopic shade to extend the telescopic shade. Rotation of the ring causes retraction of the telescopic shade.

Abstract: A window for a display device, the window including a first plastic substrate, a second plastic substrate adjacent to a surface of the first plastic substrate, the second plastic substrate including a polyester resin, a polyester urethane resin, or a combination thereof, a refractive index difference between the first plastic substrate and second plastic substrate being about 0.04 or less, and a third plastic substrate adjacent to a surface of the second plastic substrate.

Abstract: A window member includes a base substrate having a light transmitting area and a light blocking area surrounding the light transmitting area, a plurality of reflection patterns on the base substrate in the light blocking area and spaced from each other, and a light blocking layer covering the reflection patterns and configured to block light.

Abstract: A method and apparatus for two-dimensional wavelength beam combining of laser sources. In one example, an external cavity multi-wavelength laser includes an array of laser emitters each producing an optical beam having a specified wavelength, a grating stack comprising a plurality of first-order diffraction gratings arranged linearly in a first dimension, and a dispersive element. The laser further includes a cylindrical telescope that images the optical beams from the array of laser emitters onto the grating stack. A first cylindrical transform lens spatially overlaps the optical beams in a second dimension forming a first region of overlap at the grating stack. A second cylindrical transform lens spatially overlaps the optical beams from the grating stack in the first dimension forming a second region of overlap at the dispersive element. The dispersive element transmits a multi-wavelength output beam comprising the spatially overlapped optical beams from the array of laser emitters.

Abstract: An optical element includes a waveguide, a polarizing beam splitter film, and a deflector. The waveguide propagates light incident at a predetermined angle while reflecting the light between first and second planes. The polarizing beam splitter film is adhered to the first plane of the waveguide. The polarizing beam splitter film separates light incident from the waveguide into transmitted light and reflected light. The deflector is joined to the waveguide with the polarizing beam splitter film therebetween. The deflector has a plurality of first reflecting surfaces. The first reflecting surfaces reflect, in a direction substantially perpendicular to a surface of the polarizing beam splitter film, light transmitted by the polarizing beam splitter film. The polarizing beam splitter film reflects the majority of light incident at a predetermined angle from the waveguide and transmits a majority or all of the light incident in a substantially perpendicular direction from the deflector.

Abstract: In an optical system including a front lens unit having negative refractive power, a stop, and a rear lens unit having positive refractive power in order from an enlargement side to a reduction side, the front lens unit has a combination lens in which a negative lens and a positive lens are adjacently arranged in order from the enlargement side to the reduction side, and a focal length of the negative lens fN, an Abbe number ?N and relative partial dispersion ?N of a material of the negative lens, an Abbe number ?P and relative partial dispersion ?P of a material of the positive lens, and a focal length of the entire optical system fW are appropriately set.

Abstract: A method of fabricating an aspherical gradient refractive index lens includes co-extruding a first polymer material having a first refractive index and a second polymer material having a second refractive index different than the first refractive index to form multilayered polymer composite films, assembling the multilayered polymer composite films into a multilayer composite GRIN sheet and shaping the multilayered composite GRIN sheet into an aspherical lens.

Abstract: Including: a front lens group Gf disposed to an object side of an aperture stop; and a rear lens group Gr disposed to an image side of the aperture stop; the front lens group including a sub-lens group Ga having negative refractive power, the sub-lens group Ga including, in order from the most object side, at least three negative lenses, at least one of the three negative lens being an aspherical negative meniscus lens, the aspherical negative meniscus lens having a shape that negative refractive power is getting smaller from the center to the periphery, a cemented lens constructed by a positive lens, a negative lens, and a positive lens being disposed to the image side of the sub-lens group Ga, and given conditional expressions being satisfied, thereby providing a wide-angle lens having high optical performance with a wide angle of view.

Abstract: An optical image collecting system 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 a convex object-side surface. The second through sixth lens elements all have refractive power. The fifth lens element has a concave object-side surface and a convex image-side surface, wherein at least one of the object-side surface and the image-side surface of the fifth lens element is aspheric. The sixth lens element has a concave image-side surface at a paraxial region, wherein the image-side surface of the sixth lens element changes from concave at the paraxial region to convex at a peripheral region, and both of an object-side surface and the image-side surface of the sixth lens element are aspheric.

Abstract: An imaging lens substantially includes five lenses, constituted by: a first lens having a positive refractive power; a second lens having a negative refractive power; a third lens having a positive refractive power and a convex surface that faces an object side; a fourth lens having a negative refractive power and a meniscus shape with a concave surface that faces the object side; and a fifth lens having a positive refractive power, a meniscus shape with a convex surface that faces the object side, and at least one inflection point on the surface thereof toward an image side.