Abstract: Provided are a cholesteric liquid crystal layer having a high diffraction efficiency, and a laminate, a light guide element, and an image display device that include the same. The cholesteric liquid crystal layer is obtained by immobilizing a cholesteric liquid crystalline phase, in which the cholesteric liquid crystal layer has a liquid crystal alignment pattern in which a direction of an optical axis derived from a liquid crystal compound changes while continuously rotating in at least one in-plane direction, in a case where a tilt angle of a direction in which an in-plane retardation is minimum with respect to a normal line in a slow axis plane or a fast axis plane is represented by ?2, an absolute value of an optical axis tilt angle ? represented by “sin ?2=n·sin ? (n represents an average refractive index of the cholesteric liquid crystal layer)” is 5° or more.

Abstract: A display apparatus includes a display, a plate-like body, and a gap portion. The display is configured to display an image and having a front surface. The plate-like body is provided along the front surface of the display and configured to transmit image light emitted from the front surface of the display. The gap portion is formed between the front surface of the display and the plate-like body and configured to switch between a state filled with a fluid and a state where the fluid is discharged.

Abstract: An actuator device can include a plate, an actuator, a connector, and a power unit. The plate can retain a section of an optical fiber at the transmitter end of an optical communication link. The section of the optical fiber can be wrapped in at least a partial loop and held or retained by the plate. The connector can be a mechanical connector that couples the plate to the actuator and enables the plate to move about at least one axis to cause a change in a polarization state of the optical signal carried by the optical fiber. The change in the polarization state is identifiable by a polarized photodetector near a receiver end of the optical communication link. The power unit can provide power to at least the actuator.

Abstract: The specification is directed to an apparatus for combining laser beams having a same polarization. The apparatus includes a prism having a prism body and a plurality of surfaces, and a crystal coupled to the prism, the crystal having a crystal body and formed of a birefringent material. The prism is configured to receive two laser beams each having a same input linear polarization, totally internally reflect the first laser beam off one or more of the plurality of surfaces to change the linear polarization of the first beam to an orthogonal polarization, refract the second laser beam, and output the laser beams parallel to each other, and having orthogonal polarizations. The crystal is configured to receive the laser beams from the prism and combine them to form an orthogonally polarized combined laser beam.

Abstract: Provided is a liquid crystal display device comprising: a light source having a wide color reproduction range; a liquid crystal panel; and a polarizing plate arranged on the visible side of the liquid crystal panel, wherein the polarizing plate comprises a polarizer and a polarizer protecting film; the polarizer protecting film comprises a polyester base film having an in-plane phase difference of 8,000 nm or higher at a wavelength of 550 nm and a primer layer formed on at least one surface of the polyester base film; and a coating layer having a lower refractive index than the primer layer is additionally formed on a surface of the primer layer.

Abstract: Organic light emitting diode (OLED) displays having an emissive OLED layer and a nanostructured interface configured to reduce variability of color with view angle are described. An optical stack having first and second layers with differing refractive indices includes the nanostructured interface between the first and second layers. The second layer is disposed between the first layer and the emissive OLED layer. The nanostructured interface has a substantially azimuthally symmetric power spectral density (PSD) and a wavenumber-PSD product has a maximum for a wavenumber larger than 6 radians/micrometer times the refractive index of the second layer. For all wavenumbers lower than 6 radians/micrometer times the second refractive index, the wavenumber-PSD product is no more than 0.3 times the maximum.

Abstract: A photoactive device that includes a photovoltaic device having electrodes and at least one photoactive layer between the electrodes. One or more other layers may be included between the electrodes. The device includes a substrate positioned below the photovoltaic device, and a nanostructure backreflective layer positioned below the substrate such that at least some of the incident light impinging on the photovoltaic device passes through the photovoltaic device and the substrate and is backscattered through the substrate to the photovoltaic device.

Abstract: A regional polarization structure, a method for fabricating a regional polarization structure and a liquid crystal display panel are provided. The regional polarization structure includes: a substrate; at least one first carbon nanotube block arranged on a first side of the substrate; and at least one second carbon nanotube block arranged on a second side of the substrate, where the first carbon nanotube block includes multiple carbon nanotubes extended in a first direction, the second carbon nanotube block includes multiple carbon nanotubes extended in a second direction, and the first direction is different from the second direction.

Abstract: A multilayer optical film has a packet of microlayers that selectively reflect light by constructive or destructive interference to provide a first reflective characteristic. At least some of the microlayers are birefringent. A stabilizing layer attaches to and covers the microlayer packet proximate an outer exposed surface of the film. Heating element(s) can physically contact the film to deliver heat to the packet through the stabilizing layer by thermal conduction, at altered region(s) of the film, such that the first reflective characteristic changes to an altered reflective characteristic in the altered region(s) to pattern the film. The stabilizing layer provides sufficient heat conduction to allow heat from the heating elements to change (e.g.

Abstract: Nanostructured material exhibiting a random anisotropic nanostructured surface, and exhibiting an average reflection at 60 degrees off angle less than 1 percent. The nanostructured materials are useful, for example, for optical and optoelectronic devices, displays, solar, light sensors, eye wear, camera lens, and glazing.

Abstract: A multilayer optical film has a packet of microlayers that selectively reflect light by constructive or destructive interference to provide a first reflective characteristic. At least some of the microlayers are birefringent. A stabilizing layer attaches to and covers the microlayer packet proximate an outer exposed surface of the film. Heating element(s) can physically contact the film to deliver heat to the packet through the stabilizing layer by thermal conduction, at altered region(s) of the film, such that the first reflective characteristic changes to an altered reflective characteristic in the altered region(s) to pattern the film. The stabilizing layer provides sufficient heat conduction to allow heat from the heating elements to change (e.g.

Abstract: Provided is an image display device equipped with a see-through display function allowing the background to be seen through. In a liquid crystal display device (100), a transparent plate (170) is attached such that the incidence angle of source light emitted by a backlight source (160) is Brewster's angle ?b, and therefore, the transparent plate (170) reflects S-wave included in the source light, and allows P-wave included in ambient light incident from the back side to be transmitted therethrough and illuminate a liquid crystal panel (150). Thus, when the backlight source (160) is on, the viewer can see an image displayed on the background, whereas when the backlight source (160) is off, only the background can be seen.

Abstract: A diffusely reflective optical film includes a blended layer extending from a first to a second zone of the film. The blended layer includes first and second polymer materials separated into distinct first and second phases, respectively. The blended layer may have the same composition and thickness in the first and second zones, but different first and second diffusely reflective characteristics in the first and second zones, respectively. The difference between the first and second diffusely reflective characteristics may not be attributable to any difference in composition or thickness of the layer between the first and second zones. Instead, the difference between the first and second diffusely reflective characteristic may be attributable to a difference in birefringence of the first and/or second polymer materials between the first and second zones. The blend morphology of the blended layer may be substantially the same in the first and second zones.

Abstract: A multilayer optical film (130) has a packet of microlayers that selectively reflect light by constructive or destructive interference to provide a first reflective characteristic. At least some of the microlayers are birefringent. A stabilizing layer attaches to and covers the microlayer packet proximate an outer exposed surface of the film Heating elements (122) can physically contact the film to deliver heat to the packet through the stabilizing layer by thermal conduction, at altered regions of the film, such that the first reflective characteristic changes to an altered reflective characteristic in the altered regions to pattern the film The stabilizing layer provides sufficient heat conduction to allow heat from the heating elements to change (e.g.

Abstract: Methods and systems for a polarization immune wavelength division multiplexing demultiplexer are disclosed and may include, in an optoelectronic transceiver having an input coupler, a demultiplexer, and an amplitude scrambler: receiving input optical signals via the input coupler, communicating the input optical signals to the amplitude scrambler via waveguides, configuring the average optical power in each of the waveguides utilizing the amplitude scrambler, and demultiplexing the optical signals utilizing the demultiplexer. The amplitude scrambler may include phase modulators and a coupling section. The phase modulators may include sections of P-N junctions in the two waveguides. The demultiplexer may include a Mach-Zehnder Interferometer. The demultiplexed signals may be received utilizing photodetectors. The input coupler may include a polarization splitting grating coupler.

Abstract: Inorganic multilayer lamination transfer films, methods of forming these lamination transfer films, and methods of using these lamination transfer films. These inorganic multilayer lamination transfer films can have alternating layers including inorganic nanoparticles, sacrificial materials, and optionally inorganic precursors that can be densified to form an inorganic optical stack. Receptor substrates, such as glass or metal, are laminated to the multilayer lamination transfer films.

Abstract: A highly durable polarizing plate and a display device including the same are provided. In the highly durable polarizing plate, sticking agent having different storage modulus are formed on top and bottom surfaces of a ?/4 retardation film. Such a highly durable polarizing plate can be attached to LCDs and OLEDs to realize high-quality screens due to a small change in retardation value under environments for reliability evaluation of heat resistance and wet-heat resistance.

Abstract: The present disclosure relates to inorganic multilayer lamination transfer films, methods of forming these lamination transfer films and methods of using these lamination transfer films. These inorganic multilayer lamination transfer films can have alternating layers including inorganic nanoparticles, sacrificial materials and optionally inorganic precursors that can be densified to form an inorganic optical stack.

Abstract: A device for controlling polarization of an optical fiber and a method of controlling the polarization of an optical fiber using the same are disclosed herein. The device includes optical fiber supports, an optical fiber holder, and an optical fiber curvature changing unit. The optical fiber supports receive an optical fiber, and support both ends of the optical fiber. The optical fiber holder includes an optical fiber guide element that guides the optical fiber, drawn out of the optical fiber supports, through a path. The optical fiber curvature changing unit is located between the optical fiber and the optical fiber guide element, and changes the curvature of the optical fiber by exerting external force onto the optical fiber.

Abstract: In order to produce a beam with a zero intensity axial ray or to produce a beam that when focused will produce an image of a doughnut shaped pattern with a zero intensity central point, a beam with a uniform or Gaussian profile is directed to a plurality of transparent plates, arranged in pairs on opposite sides of the beam axis, such that for at least one pair, the plates have a composition and thickness different from each other, and chosen so that the transmitted light has a phase difference of half a wavelength for at least three different wavelengths. An additional plate with a center on the perpendicular of the line connecting the first two plates has a composition and thickness such that the light transmitted through that additional plate has a phase difference of a quarter wavelength with respect to the light transmitted through one of the plates of said first pair of plates, at at least one wavelength.

Abstract: A polarizer includes a reflective polarizer main body and an Rth compensation layer. The reflective polarizer main body includes a repetitively laminated structure, the repetitively laminated structure including two layers of different refractive indices repetitively disposed on one another. The Rth phase compensation layer is disposed at one side of the reflective polarizer main body. The Rth phase compensation layer is configured to compensate for a phase difference in an Rth direction.

Abstract: There is provided an optical laminate which comprises: a polarizing film wherein a thin polarizing layer is laminated on one main surface of a substrate; and an optical element (lens array). The thin polarizing layer has a thickness of 8 ?m or less. The substrate has a thickness of 20 ?m to 80 ?m. The optical element is a pattern retardation plate including a plurality of regions having different slow axis directions.

Abstract: An apparatus is disclosed for filtering of probe light. The apparatus includes an optical filter comprised of a medium circular birefringence between crossed polarizers. The circular birefringent medium changes the polarization of light of a particular frequency bandwidth. So that after passing through the first polarizer, the polarization of a particular frequency bandwidth probe light is rotated between crossed polarizers so it will be transmitted through the second polarizer. The birefringent medium is constructed from a gaseous substance such as atomic vapor and two pump lasers in resonance with absorption lines of the absorbing substance by the process of two-photon absorption. A magnetic field is utilized in some embodiments that permeates the absorbing substance and separates absorption lines for excited state transitions by the Zeeman effect.

Abstract: A wavelength selective switch for selectively switching optical wavelength components of an optical signal uses both LCoS and MEMs switching technologies to improve device performance. Specific performance improvements may include more ports, better spectral performance and isolation, improved dynamic crosstalk, more flexible attenuation options, integrated channel monitoring and compressed switch heights.

Abstract: A reflective film includes a first optical stack that provides a first reflective characteristic and a second optical stack that provides a second reflective characteristic. The optical stacks also have first and second absorptive characteristics that are suitable to absorptively heat the respective stacks upon exposure to light including a write wavelength while maintaining the structural integrity of the stacks. The absorptive heating can change the first and second reflective characteristics to third and fourth reflective characteristics, respectively. A blocking layer that at least partially blocks light of the write wavelength may also be provided between the optical stacks to permit absorptive heating of any selected one of the optical stacks. The reflective characteristics of the optical stacks can thus be independently modified in any desired patterns by appropriate delivery of light beams that include the write wavelength.

Abstract: An optical compensation film for a liquid crystal display is provided and comprises a liquid crystal layer which is disposed on a substrate and has a plurality of first stripe-structure regions with a first thickness and a plurality of second stripe-structure regions with a second thickness, wherein each of the second stripe-structure regions is contiguous to at least one of the first stripe-structure region and the second thickness is greater than the first thickness. The method for manufacturing the optical compensation film is provided.

Abstract: Provided is a laser irradiation device for use in laser processing, and a laser processing method performed using the same. Provided is a laser irradiation device including: a light source that emits a laser beam; and an irradiation optical system which has one or a plurality of lenses, and is provided for light-guiding and light-converging of the laser beam emitted from the light source to the target substance, in which a birefringent material is used as a material entity of at least one lens of the irradiation optical system. Also provided is a laser processing method. The irradiation optical system may have a beam expander having a first lens that is a concave lens or a convex lens, and a second lens that is a convex lens, in the order along the laser-beam travel direction, the beam expander being configured so as to make the interval between the first lens and the second lens variable, in which a birefringent material may be used as a material entity of the first lens and/or the second lens.

Abstract: A film includes microlayers arranged into optical repeat units. Adjacent microlayers have in-plane refractive index mismatches ?nx, ?ny tailored to provide mirror-like on-axis properties, such that the film has a reflectivity for normally incident light in an extended wavelength band of at least 75% for any polarization. Adjacent microlayers also have a refractive index mismatch ?nz that provides the film with reduced reflectivity R1 and increased transmission for p-polarized light in the extended wavelength band incident on the film in a first plane of incidence at an angle ?oblique, where R1 is no more than half of the minimum of on-axis reflectivity. Further, ?nx and ?ny are different enough so that for light incident on the film in a second plane of incidence orthogonal to the first plane, the film has a reflectivity R2 of at least 75% for such light that is p-polarized and incident at any angle.

Abstract: The present invention is related to 6,7-dihydrobenzimidazo[1,2-c]quinazolin-6-one derivatives of the general structural formula (I), the anisotropic optical film based on these derivatives with phase-retarding properties for displays, and method of producing thereof: where X is a carboxylic group COOH, m is 0, 1, 2 or 3; Y is a sulfonic group SO3H, n is 0, 1, 2 or 3; Z is an acid amide group L-NH2; p is 0, 1, 2 or 3; K is a counterion selected from the list comprising H+, NH4+, Na+, K+, Li+, Mg2+, Ca2+, Zn2+, and Al3+; s is the number of counterions providing neutral state of the molecule; R is a substituent selected from the list comprising CH3, C2H5, NO2, Cl, Br, F, CF3, CN, OH, OCH3, OC2H5, OCOCH3, OCN, SCN, NH2, and NHCOCH3; w is 0, 1, 2, 3 or 4; and R1 is a substituent selected from the list comprising H, CH3, C2H5, C3H7, i-C3H7, CH2CH2CH2CH3, CH(CH3)CH2CH3, CH2CH(CH3)CH3 and C(CH3)3 and L is a linking group.

Abstract: An optical element of the present invention has a first dielectric layer, a second dielectric layer and a first metal layer arranged between the first dielectric layer and the second dielectric layer, and is characterized that the first dielectric layer has different refractive indices in a first direction, and a second direction intersecting with the first direction.

Abstract: The invention relates to an illumination system of a microlithographic projection exposure apparatus comprising (a) a plurality of channels, each channel guiding a partial beam and at least one channel comprising at least one defect, and (b) at least one optical element arranged within the at least one channel having the at least one defect, the optical element being adapted to at least partially compensate the at least one defect of the partial beam of the channel.

Abstract: A reflective film includes microlayers arranged into optical repeat units to reflect light in an extended wavelength band, with thinner and thicker ones of the optical repeat units being disposed generally towards a thin side and thick side, respectively, of the film. The microlayers are tailored to provide the film with a reflectivity, for p-polarized light incident in a first plane, that decreases by at least half from an initial value at normal incidence to a value R1 at an incidence angle ?oblique. The film has a reflectivity for p-polarized light incident in a second plane of R2 at the angle ?oblique, where R2>R1. A polarizer is combined with the reflective film, the combination defining an oblique transmission lobe, and the thick and thin sides of the reflective film are oriented relative to the polarizer to reduce an azimuthal width ?? of the transmission lobe.

Abstract: A birefringent device, which is configured to be mounted in an optical path of an optical system, has an effective area in a pupil plane. The birefringent device affects different polarization states differently and position-dependently. The birefringent device realizes a first pupil function assigned to a first polarization state and a second different pupil function assigned to a second polarization state. The pupil functions may be optimized to achieve various specific optical properties like extended depth of field.

Abstract: A reflective film includes interior layers arranged to selectively reflect light by constructive or destructive interference, the layers extending from a first zone to a second zone of the film. The film has a first thickness and the interior layers provide a first reflective characteristic in the first zone; the film has a second thickness and the interior layers provide a second reflective characteristic in the second zone. The difference between the first and second reflective characteristics is not substantially attributable to any difference between the first and second thicknesses, which difference may be zero. Rather, the difference in the reflective characteristics is substantially attributable to reduced birefringence of at least some of the interior layers in one zone relative to the other zone. The film may also incorporate absorbing agents to assist in the manufacture or processing of the film. Related methods and articles are also disclosed.

Abstract: A head-up display device operated in a vehicle comprises: a first image source disposed under the windshield of the vehicle, which emits a first polarized image light having a first polarization; a light path combining component in front of the first image source, which is for that the first polarized image light firstly goes to the light path combining component and only lets the first polarized image light be through and then the image light goes to the windshield, part of the image light is reflected by the windshield to a driver's eyes; and a second image source inside the vehicle, which emits a second polarized image light having a second polarization and then the image light directly goes to or reflects at least one time to the combining component, continuously to the windshield, and the second polarized image light is partially reflected by the windshield to the eyes.

Abstract: Presently described are multilayer optical films, oriented polyester films, negatively birefringent copolyester polymers, fluorene monomers, and polyester polymers prepared from such fluorene monomers. In one embodiment, the multilayer optical film comprises at least one first birefringent optical layer; and at least one second optical layer having a lower birefringence than the first optical layer; wherein at least one of the optical layers comprises a negatively birefringent polyester polymer comprising a backbone and repeat units comprising at least one pendent aromatic group that is conformationally locked relative to the backbone.

Abstract: A fiber laser device includes a laser source that can emit a source laser beam, a birefringent beam separator configured to receive the source laser beam and to split the source laser beam into an o ray and an e ray which have mutually orthogonal polarizations, and a polarization maintaining fiber comprising a fiber core characterized by a core diameter, wherein after the o ray and the e ray exit birefringent beam separator, the o ray and the e ray are separated by a distance that is larger than the fiber core of the polarization maintaining fiber. The polarization maintaining fiber is positioned to couple one of the o ray and the e ray into the fiber core. The one of the o ray and the e ray transmits through the polarization maintaining fiber to form an output laser beam.

Abstract: An optical member for transmitting or reflecting light is provided. The optical member includes a base member that transmits or reflects light; and a double rainbow film attached on the base member. Preferably, the double rainbow film has an in-plane phase difference in a range of 8,000 nm to 11,000 nm. When the optical member is used together with a display device, there is little color shift before and during wearing sunglasses and a rainbow-like stain which appears in a conventional display device when wearing sunglasses with a polarizing function may be suppressed.

Abstract: The present invention provides a method for improving visibility of an image display device which is capable of providing an image display device excellent in anti-reflection properties and bright-field contrast even using an optical layered body including a light-transmitting substrate having in-plane birefringence, such as a polyester film. The method of the present invention is a method for improving visibility of an image display device that has an optical layered body including a light-transmitting substrate having in-plane birefringence and an optical functional layer disposed on one surface of the substrate. The method includes the step of disposing the optical layered body such that the slow axis showing a greater refractive index of the light-transmitting substrate is in parallel with the vertical direction of a display screen of the image display device.

Abstract: The present invention provides a method for improving visibility of an image display device which is capable of providing an image display device excellent in anti-reflection properties and bright-field contrast even using an optical layered body including a light-transmitting substrate having in-plane birefringence, such as a polyester film. The method of the present invention is a method for improving visibility of an image display device that has an optical layered body including a light-transmitting substrate having in-plane birefringence and an optical functional layer disposed on one surface of the substrate. The method includes the step of disposing the optical layered body such that the slow axis showing a greater refractive index of the light-transmitting substrate is in parallel with the vertical direction of a display screen of the image display device.

Abstract: An end face of a polarization plate cut by laser becomes a substantially flat surface having only sloping micro waviness because of having been melted once to be solidified. Since the surface has few stress-concentrated parts that may cause microcracks, this prevents microcracks from easily being produced.

Abstract: A birefringent diffuser includes a first optical material and a first birefringent material. The first optical material and the first birefringent material are combined to form a planar layer. The planar layer has an internal pattern of the materials presenting a substantially uniform index of refraction for incident light which is substantially normal to the planar layer and exhibiting a varying index of refraction for at least a portion of light which is trapped in guided modes.

Abstract: There is provided an optical laminate excellent in adhesiveness between a (meth)acrylic resin film (base material film) having low moisture permeability and a UV absorbing ability and a hard coat layer, and has suppressed interference unevenness. An optical laminate according to an embodiment of the present invention includes: a base material layer formed of a (meth)acrylic resin film; a hard coat layer formed by applying a composition for forming a hard coat layer to the (meth)acrylic resin film; and a penetration layer formed through penetration of the composition for forming a hard coat layer into the (meth)acrylic resin film, the penetration layer being placed between the base material layer and the hard coat layer, wherein the penetration layer has a thickness of 1.2 ?m or more.

Abstract: The present invention provides a method for improving visibility of an image display device which is capable of providing an image display device excellent in anti-reflection properties and bright-field contrast even using an optical layered body including a light-transmitting substrate having in-plane birefringence, such as a polyester film. The method of the present invention is a method for improving visibility of an image display device that has an optical layered body including a light-transmitting substrate having in-plane birefringence and an optical functional layer disposed on one surface of the substrate. The method includes the step of disposing the optical layered body such that the slow axis showing a greater refractive index of the light-transmitting substrate is in parallel with the vertical direction of a display screen of the image display device.

Abstract: A reflective film includes interior layers that selectively reflect light by constructive or destructive interference, the layers extending from a first to a second zone of the film. The interior layers include a first set of layers composed of a first material and a second set of layers composed of a different second material. The first and second sets of layers are both birefringent in the first zone, but at least some of the layers have reduced birefringence in the second zone. The reduced birefringence produces a second reflective characteristic in the second zone that differs from a first reflective characteristic in the first zone, this difference not being substantially attributable to any thickness difference between the first and second zones. The film may also incorporate absorbing agents to assist in the manufacture or processing of the film.

Abstract: An optical apparatus, comprising a polarization beam splitter (PBS) comprising a birefringent crystal having a front-end and a back-end, and an optical rotator positioned on the back-end of the birefringent crystal. Included is an optical apparatus comprising a PBS comprising a birefringent crystal and an optical rotator, wherein the PBS is configured to receive a multiplexed optical signal comprising a first polarized optical signal and a second polarized optical signal, wherein the second polarized optical signal is orthogonal to the first polarized optical signal, separate the first polarized optical signal from the second polarized optical signal using the birefringent crystal, and rotate the second polarized optical signal using the optical rotator such that the rotated second polarized optical signal is parallel to the first polarized optical signal. The PBS may further comprise only one lens, wherein the lens is positioned on the front-end of the birefringent crystal.

Abstract: The present invention provides a method for improving visibility of an image display device which is capable of providing an image display device excellent in anti-reflection properties and bright-field contrast even using an optical layered body including a light-transmitting substrate having in-plane birefringence, such as a polyester film. The method of the present invention is a method for improving visibility of an image display device that has an optical layered body including a light-transmitting substrate having in-plane birefringence and an optical functional layer disposed on one surface of the substrate. The method includes the step of disposing the optical layered body such that the slow axis showing a greater refractive index of the light-transmitting substrate is in parallel with the vertical direction of a display screen of the image display device.

Abstract: An optical film includes at the least one retardation film and at least one isotropic layer made of an isotropic material, wherein the difference in average refractive index between the retardation film and the isotropic layer is at least 0.1 or more. Also, the method of adjusting wavelength dispersion characteristics of an optical film includes: stacking an isotropic layer onto a retardation film. A method for preparing optical film having a variety of wavelength dispersion characteristics by the simple method of coating the retardation film with the isotropic layer.

Abstract: In relation to a sheet having linearly polarized light eliminating function that is disposed on the viewing side of a polarizing film and eliminates linearly polarized light that has traversed the polarizing plate, proposed is a novel sheet having linearly polarized light eliminating function, allowing a layer having linearly polarized light eliminating function to be thinned, and furthermore, allowing manipulability when pasting the sheet to be satisfactory. Proposed is a transparent double-sided adhesive sheet provided with a adhesive layer on both front and back sides and provided with a layer having a linearly polarized-light-eliminating function (referred to as “linearly polarized-light-eliminating functional layer”) as a middle layer, and the thickness of the linearly polarized-light-eliminating functional layer being within the range of 1 ?m to 40 ?m and smaller than the thickness of the adhesive layer on either the front or the back or the adhesive layers on both front and back sides.

Abstract: In an optical assembly having a light source which provides two optically different light components with essentially planar wavefronts on an optical axis, wherein the light components differ at least in their wavelength; in the case of an objective lens which projects the two optically different light components into a projection space; and in the case of an optical component which is arranged on the optical axis and has an plane through which the wavefronts of the two light components pass and in which at least two different areas of the optical component with different dispersion behaviors n(?) abut against one another in the lateral direction with respect to the optical axis; the optical component causes phase shifts of the wavefronts of the two light components, wherein the phase shift of the wavefronts of the one light component differs by at least one quarter of the wavelength of that light component between the two different areas, and wherein the phase shift of the wavefronts of the other light compo