231results about How to "Diffraction reduction" patented technology

A compact and versatile multi-spot inspection imaging system employs an objective for focusing an array of radiation beams to a surface and a second reflective or refractive objective having a large numerical aperture for collecting scattered radiation from the array of illuminated spots. The scattered radiation from each illuminated spot is focused to a corresponding optical fiber channel so that information about a scattering may be conveyed to a corresponding detector in a remote detector array for processing. For patterned surface inspection, a cross-shaped filter is rotated along with the surface to reduce the effects of diffraction by Manhattan geometry. A spatial filter in the shape of an annular aperture may also be employed to reduce scattering from patterns such as arrays on the surface. In another embodiment, different portions of the same objective may be used for focusing the illumination beams onto the surface and for collecting the scattered radiation from the illuminated spots simultaneously. In another embodiment, a one-dimensional array of illumination beams are directed at an oblique angle to the surface to illuminate a line of illuminated spots at an angle to the plane of incidence. Radiation scattered from the spots are collected along directions perpendicular to the line of spots or in a double dark field configuration.

In order to minimize light diffraction along the direction of switching and more particularly light diffraction into the acceptance cone of the collection optics, in the present invention, micromirrors are provided which are not rectangular. Also, in order to minimize the cost of the illumination optics and the size of the display unit of the present invention, the light source is placed orthogonal to the rows (or columns) of the array, and / or the light source is placed orthogonal to a side of the frame defining the active area of the array. The incident light beam, though orthogonal to the sides of the active area, is not however, orthogonal to any substantial portion of sides of the individual micromirrors in the array. Orthogonal sides cause incident light to diffract along the direction of micromirror switching, and result in light ‘leakage’ into the ‘on’ state even if the micromirror is in the ‘off’ state. This light diffraction decreases the contrast ratio of the micromirror. The micromirrors of the present invention result in an improved contrast ratio, and the arrangement of the light source to micromirror array in the present invention results in a more compact system. Another feature of the invention is the ability of the micromirrors to pivot in opposite direction to on and off positions (the on position directing light to collection optics), where the movement to the on position is greater than movement to the off position. A further feature of the invention is a package for the micromirror array, the package having a window that is not parallel to the substrate upon which the micromirrors are formed. One example of the invention includes all the above features.

A dynamic hologram is formed in anisotropic liquid crystal (LC) gel materials. By applying an electric field, the orientation of part of the liquid crystals can be altered and the hologram can be turned on and off. Using LC gels allows for holographic elements with no diffraction in the voltage off state so that the hologram appears only during application of an electric field. Also, the anisotropic LC gels maintain polarization dependence. The dynamic holograms are suitable in e.g. dynamic holographic optical components whereby an optical function can be included / excluded in a beam path without introducing or removing elements.

The present invention provides a touch panel having pluralities of projections, each of the projections having a predetermined shape, formed on inner surfaces of a lower substrate and an upper substrate, respectively. The projections being formed in at least two directions with a substantially periodical pitch that is shorter than any wavelength of visible light. The touch panel can also include a lower transparent electrode and an upper transparent electrode formed over the inner surfaces of the lower substrate and the upper substrate having the pluralities of projections, respectively. The cross-sectional area of each of the projections parallel to the outer surface of the lower substrate is configured to decrease continuously from bottom to top of the projection. The same applies to the combination of each of the projections, the bottom and a top thereof, and the upper substrate. Accordingly, this structure reduces the light reflection and diffraction at the boundary between an air space and the transparent electrode, thereby providing a resistive contact-type touch panel or a electrostatic capacitive coupling-type touch panel having high light transmittance.

In order to minimize light diffraction along the direction of switching and more particularly light diffraction into the acceptance cone of the collection optics, in the present invention, micromirrors are provided which are not rectangular. Also, in order to minimize the cost of the illumination optics and the size of the display unit of the present invention, the light source is placed orthogonal to the rows (or columns) of the array, and / or the light source is placed orthogonal to a side of the frame defining the active area of the array. The incident light beam, though orthogonal to the sides of the active area, is not however, orthogonal to any substantial portion of sides of the individual micromirrors in the array. Orthogonal sides cause incident light to diffract along the direction of micromirror switching, and result in light ‘leakage’ into the ‘on’ state even if the micromirror is in the ‘off’ state. This light diffraction decreases the contrast ratio of the micromirror. The micromirrors of the present invention result in an improved contrast ratio, and the arrangement of the light source to micromirror array in the present invention results in a more compact system. Another feature of the invention is the ability of the micromirrors to pivot in opposite direction to on and off positions (the on position directing light to collection optics), where the movement to the on position is greater than movement to the off position. A further feature of the invention is a package for the micromirror array, the package having a window that is not parallel to the substrate upon which the micromirrors are formed. One example of the invention includes all the above features.

The embodiment of the invention discloses a display panel and a display device. The display panel comprises a first display area and a second display area, the second display area is multiplexed intoa sensor reserving area; the second display area comprises a plurality of light-transmitting areas and a plurality of non-light-transmitting areas, and the non-light-transmitting areas comprise a plurality of first-class non-light-transmitting areas and a plurality of second-class non-light-transmitting areas; one of the first-class non-light-transmitting areas and the second-class non-light-transmitting areas comprises pixel array areas which comprise sub-pixels of at least three luminous colors, and the other one of the first-class non-light-transmitting areas and the second-class non-light-transmitting areas comprises first trace concentration areas which comprise a plurality of parallel signal traces arranged of the at least three sub-pixels; or one of the first-class non-light-transmitting areas and the second-class non-light-transmitting areas comprises first pixel array areas, the other one of the first-class non-light-transmitting areas and the second-class non-light-transmitting areas comprises second pixel array areas and second trace concentration areas, andeach second trace concentration area comprises at least two parallel signal traces of the at least two sub-pixels.According to the technical scheme of the display panel andthe display device, normal display of the sensor setting area of the display panel is achieved, the screen-to-body ratio is increased, and theinfinity display is achieved.

The invention relates to a display screen and a display device. The display screen comprises a first region and a second region, wherein a first type of light-emitting unit is arranged in the first region, a second type of light-emitting unit is arranged in the second region and is different from the first type of light-emitting unit, a driving array of the first type of light-emitting unit deviates from the first region, and a driving array of the second type of light-emitting unit is arranged in the second region. In the embodiment provided by the invention, the driving array of the first type of light-emitting unit deviates from the first region, so that the interference and the diffraction of the driving array on light rays can be reduced, and the imaging effect can be improved.

The invention discloses a display panel and a manufacturing method thereof as well as a display device, and belongs to the technical field of display. The display panel comprises a substrate base plate as well as a shading layer and a plurality of pixel lines which are arranged on the substrate base plate sequentially; the shading layer comprises a plurality of shading structures; the positive projection of the at least two pixel lines of the plurality of pixel lines on the substrate base plate is positioned in a positive projection area of the same shading structure on the substrate base plate; and the same shading structure is used for shading light rays which are transmitted to the at least two pixel lines from the outside. The display panel is favorable for reducing the influence on the display effect of the display panel by the external light rays and is applied to the display device.

In order to minimize light diffraction along the direction of switching and more particularly light diffraction into the acceptance cone of the collection optics, in the present invention, micromirrors are provided which are not rectangular. Also, in order to minimize the cost of the illumination optics and the size of the display unit of the present invention, the light source is placed orthogonal to the rows (or columns) of the array, and / or the light source is placed orthogonal to a side of the frame defining the active area of the array. The incident light beam, though orthogonal to the sides of the active area, is not however, orthogonal to any substantial portion of sides of the individual micromirrors in the array. Orthogonal sides cause incident light to diffract along the direction of micromirror switching, and result in light ‘leakage’ into the ‘on’ state even if the micromirror is in the ‘off’ state. This light diffraction decreases the contrast ratio of the micromirror. The micromirrors of the present invention result in an improved contrast ratio, and the arrangement of the light source to micromirror array in the present invention results in a more compact system. Another feature of the invention is the ability of the micromirrors to pivot in opposite direction to on and off positions (the on position directing light to collection optics), where the movement to the on position is greater than movement to the off position. A further feature of the invention is a package for the micromirror array, the package having a window that is not parallel to the substrate upon which the micromirrors are formed. One example of the invention includes all the above features.

The invention provides a display device, a display panel thereof, and a transparent display panel. A first sub-pixel of the transparent display panel is arranged to comprise a light-transmitting area and a non-light-transmitting area, wherein the non-light-transmitting area is provided with a first light reflecting anode, a first light-emitting structure layer and a first cathode in a stacked mode, and the light-transmitting area completely wraps the non-light-transmitting area, or the non-light-transmitting area completely wraps the light-transmitting area. The light emitted by the first light-emitting structure layer can be reflected back and forth between the first light-reflecting anode and the first cathode for multiple times to form a microcavity effect, so that the light-emitting efficiency is enhanced, the frequency spectrum is narrowed, and the display quality of the transparent display panel is improved; when the full screen displays, the color coordinates of the light-transmitting display area and the non-light-transmitting display area are basically consistent, and deviation is avoided. The non-light-transmitting area is completely wrapped by the light-transmitting area, or the non-light-transmitting area is completely wrapped by the light-transmitting area, so that light emitted by one first sub-pixel can be uniformly diffused to all pixels around, the color coordinate offset is reduced, and the color rendering consistency under different visual angles is improved.

Effects of diffraction of a spectral beam from an edge of the micromirrors are reduced in order to optimize the passband in a wavelength selective switch. The effects of diffraction on the pass band may be reduced by using rotation of the micromirror about both the attenuation axis and the switching axis to achieve the desired level of attenuation. Peak coupling can be attained by dithering the micromirror about an axis tangent to a contour of constant attenuation using simultaneous rotation about the switching and attenuation axes.

The invention discloses a display panel and a display device. The display panel comprises a first display area and a second display area, wherein the second display area surrounds the first display area. The display panel further comprises a first substrate, wherein the first substrate comprises a first underlayer substrate; the first display area comprises a plurality of light-emitting units located on the first substrate, wherein each light-emitting unit comprises a driving circuit and an organic light-emitting element, and the driving circuits are used for driving the organic light-emittingelements to emit light. The first display area further comprises a plurality of first light-transmitting holes, the first light-transmitting holes are not overlapped with the light-emitting units inthe direction perpendicular to the plane where the first substrate is located, and the first light-transmitting holes are non-rectangular; the first display area comprises a first sub-display area anda second sub-display area; in the first sub-display area, the sum of the areas of the first light holes in unit area is S1; in the second sub-display area, the sum of the areas of the first light-transmitting holes in unit area is S2, wherein S1 is greater than S2. The screen-to-body ratio of the display panel is improved, and the imaging quality of the under-screen camera is improved.

A video display device is provided with a light source, a display element, and an eyepiece optical system (14). The light source emits light which has at least one emission peak wavelength and has a wavelength width including one emission peak wavelength. The display element modulates the light emitted from the light source and displays video. The eye-piece optical system (14) comprises a volume phase reflective HOE (23) with diffracts and reflects video light from the display element and leads the light to a viewing pupil. An HOE surface (23a) is divided into a plurality of flat surfaces (31, 32, 33) disposed so as to be recessed on the viewing pupil side, and the plurality of flat surfaces (31, 32, 33) are continuous so as to have a common ridge line at a boundary between the flat surfaces adjoining to each other.

The anti electromagnetic interference material is composed of several layers: the impedance matching layer is made of absorbing type sendust powder, manganese-zinc ferrite and resin; the absorbing layer is made of absorbing type sendust powder, nickel zinc ferrite and resin; the reflecting layer is made of reflection type sendust powder, iron powder and resin.

Objects are to obtain a highly accurate diffraction element that may prevent an intensity decrease of a light beam entering a light receiving unit without a decrease in diffraction efficiency and without a problem of flare or the like, a manufacturing method for the diffraction element, and a spectrometer using the same. A diffraction element (2) includes a diffraction grating formed on a substrate having a curved surface. In the diffraction element (2), the curved surface (3) has an anamorphic shape formed by pivoting a curved line (I) in a plane about a straight line (II) in the same plane serving as a rotation axis, and gratings (10a) of the diffraction grating (10) exist in cross sections orthogonal to the rotation axis.

A multifocal diffractive lens comprises a multifocal diffractive structure coupled to a refractive component. The refractive component comprises at least one curved surface. The multifocal diffractive structure comprises a first plurality of substantially monofocal echellettes having a first optical power for near vision correction and a second plurality of substantially monofocal echellettes for far vision correction. The first plurality of substantially monofocal echellettes combined with the second plurality of substantially monofocal echellettes can provide a multifocal diffractive profile having decreased light scatter, chromatic aberration, and diffraction to non-viewing orders such that dysphotopsia is substantially inhibited. A third plurality of substantially monofocal echellettes having an intermediate optical power can be combined with the first plurality of substantially monofocal echellettes and the second plurality of substantially monofocal echellettes.

An optic mouse includes a casing and a circuit board fixed inside the casing. The casing has a bottom in which a first opening is defined for receiving and fixing a lens module. The lens module includes a support fixed to the first opening and forming a carrier that carries first and second lenses and a reflection portion located adjacent to the second lens and having a top connected to a bottom of the first lens. The circuit board includes a single circuit chip having integrated therewith a light emitter and an optic sensor positioned in correspondence to the first and second lenses, respectively. With the light emitter and the optic sensor integrated in the single circuit chip, the lens module is constructed and arranged to shorten an optic path for a light beam transmitting from the light emitter to the optic sensor whereby the light beam can travel in a more concentrated manner with reduced diffraction and deterioration thereof. Thus, performance of the optic mouse is enhanced.

A compact and versatile multi-spot inspection imaging system employs an objective for focusing an array of radiation beams to a surface and a second reflective or refractive objective having a large numerical aperture for collecting scattered radiation from the array of illuminated spots. The scattered radiation from each illuminated spot is focused to a corresponding optical fiber channel so that information about a scattering may be conveyed to a corresponding detector in a remote detector array for processing. For patterned surface inspection, a cross-shaped filter is rotated along with the surface to reduce the effects of diffraction by Manhattan geometry. A spatial filter in the shape of an annular aperture may also be employed to reduce scattering from patterns such as arrays on the surface. In another embodiment, different portions of the same objective may be used for focusing the illumination beams onto the surface and for collecting the scattered radiation from the illuminated spots simultaneously. In another embodiment, a one-dimensional array of illumination beams are directed at an oblique angle to the surface to illuminate a line of illuminated spots at an angle to the plane of incidence. Radiation scattered from the spots are collected along directions perpendicular to the line of spots or in a double dark field configuration.

An updateable system and method of recording a hologram on a media simultaneously reduces the writing time and increases persistence without sacrificing diffraction efficiency. A voltage kick-off technique controls the bias electric field applied to a photorefractive polymer media in conjunction with the application of the writing beams and dark decay. Essentially the voltage kick-off technique applies a high electric field above the optimal field while the writing beams are on and reduces the electric field when the writing beams are off during dark decay. The voltage kick-off technique produced two separate unexpected results. First, when the writing beams are turned off and the electric field is lowered the diffraction efficiency continues to increase until it reaches a maximum efficiency that is within a few percent of that achieved by writing at the optimal field until steady-state is achieved. Second, the decay time constant is much larger than expected producing a much longer persistence without sacrificing diffraction efficiency or writing time.

An embodiment of the invention provides a sensor component and a terminal. The sensor component comprises a light transmitter, a light receiver and a first light concentrating structure, the light transmitter is used for transmitting light which is transmitted to the outside after being concentrated by the first light concentrating structure, and the light receiver is used for receiving reflected light formed after being reflected by an outside object. By the sensor component, the light transmitted by the light transmitter can be concentrated and then transmitted to the outside, so that diffraction of the light on an ink layer is reduced, and detection accuracy of a proximity sensor is improved.

The invention discloses a pixel arrangement optimization method and device, a light-transmitting display panel and a display panel. The method comprises the following steps: constructing an initial pixel arrangement structure model, wherein the first electrode of each sub-pixel in the initial pixel arrangement structure model has an initial pattern parameter and an initial position parameter; adjusting at least one of the initial pattern parameters and the initial position parameters of at least part of the first electrodes in the initial pixel arrangement structure model to obtain an optimized pixel arrangement structure model, and enabling the ratio of the zero-order diffraction light spot energy of the optimized pixel arrangement structure model to the light transmission energy of the optimized pixel arrangement structure model to be greater than or equal to 85%. According to the pixel arrangement optimization method and device and the display panel provided by the embodiment of theinvention, the diffraction phenomenon of the display panel can be displayed.

The invention discloses a display panel and a display device, and the display panel comprises a first display area which comprises a plurality of first repeating units arranged in an array; a second display area which comprises a plurality of second repeating units arranged in an array mode, wherein the first repeating units and the second repeating units each comprise a plurality of sub-pixels, the density of the sub-pixels of the second display area is smaller than that of the sub-pixels of the first display area, and the second repeating units and the first repeating units are the same in outline shape. According to the display panel provided by the embodiment of the invention, the pixel density of the second display areas is relatively reduced, so that the array wiring in the second display area is reduced, the diffraction phenomenon of the wiring to incident light is reduced, the integration of the photosensitive module at the second display area is facilitated, and the non-display area of the display panel is reduced. The second repeating units and the first repeating units are the same in outline shape, so that the sub-pixels in the first display area and the sub-pixels in the second display area can be formed by using the same mask plate, and the design cost is reduced.

A micromirror device comprises a reflective element that is supported by at least 1 support wall. Support walls are designed for providing devices with improved mechanical and optical performance. Support walls are supported by a deformable element. The deformable element may be a torsion hinge. The deformable element may be supported by support structures that are designed to limit the deflection of the reflective element. An array of micromirror devices may be used as a spatial light modulator (SLM). Methods of fabricating micromirror arrays comprise the steps of: 1) providing a three-layer substrate, comprising a crystalline layer, a sacrificial layer, and a base layer, with the sacrificial layer being disposed between the crystalline layer and the base layer; 2) forming a deformable element in the crystalline layer; 3) forming support structures for the deformable element; and 4) forming electronic circuits on the base layer.

Effects of diffraction of a spectral beam from an edge of the micromirrors are reduced in order to optimize the passband in a wavelength selective switch. The effects of diffraction on the pass band may be reduced by appropriate modification of the edges of the micromirrors, by modification of the input and / or output ports to allow for attenuation by rotation of the micromirror about the switching axis, by using rotation of the micromirror about both the attenuation axis and the switching axis to achieve the desired level of attenuation, by inserting an aperture at a focal plane or external to the device to reduce the magnitude of the micromirror edge diffraction transmitted to any or all output ports, or by appropriate filtering of angular frequencies with a diffraction grating used to separate a multi-channel optical signal into constituent spectral beams.

The invention provides a display panel and a display device, and relates to the technical field of display. The display panel comprises a display area, wherein the display area comprises a first display area and a light sensing element arranging area, and the light sensing element arranging area comprises a light transmission area and a shading area; and an underlying substrate and a plurality ofpixel units located on the underlying substrate, wherein the shading area comprises at least one pixel unit, and each pixel unit comprises a plurality of sub-pixels, and in the direction perpendicularto the plane where the underlying substrate is located, the shading area at least comprises one first outwards-protruding arc-shaped edge. According to the display panel and the display device, the diffraction phenomenon of the light sensing element arranging area can be reduced.

A method for producing piezoelectric lanthanide gallium crystals includes pulling a crystal through a forming mould dipped into a crucible containing a melt, which controls a heat and mass transfer, as the crystal is grown. While a lanthanide gallium single crystal is growing, a charge of mixed oxides, having a composition of the melt may be continuously added to the melt such that the quantity of melt is maintained substantially stable. Crystals produced by this method exhibit less variability in piezoelectric properties. The growth direction of the crystal is aligned along an axis perpendicular to such a crystallographic plane of lanthanide gallium crystal that an improved temperature stability, lowered power flow angle, and reduced diffraction would be present in surface acoustic wave (SAW) devices made in this crystallographic plane. Such crystals are more suitable for the mass-production slicing wafers, for example over 2 inches in diameter, for SAW devices.

In an acoustic wave resonator, an IDT electrode is provided on a piezoelectric substrate. The IDT electrode is apodization-weighted such that a plurality of maximum values of cross widths are provided in acoustic wave propagation directions. Alternatively, in apodization weighting, weighting is applied such that at least one of a pair of envelopes located at outer side portions of the IDT electrode in directions substantially perpendicular to acoustic wave propagation directions includes a plurality of angled envelope portions angled from a central portion of the IDT electrode toward an outer side portion of the IDT electrode in a direction substantially perpendicular to the acoustic wave propagation directions.

A semiconductor wafer is aligned using a double patterning process. A first resist layer having a first optical characteristic is deposited and foams at least one alignment mark. The first resist layer is developed. A second resist layer having a second optical characteristic is deposited over the first resist layer. The combination of first and second resist layers and alignment mark has a characteristic such that radiation of a pre-determined wavelength incident on the alignment mark produces a first or higher order diffraction as a function of the first and second optical characteristics.

The present invention is intended to provide optical recording media of hologram type capable of high-density recording and capable of preventing noise even when the informing light and the reference light leak from filter layers formed of wavelength-selective reflection films. Accordingly, the present invention relates to optical recording media has a first substrate, a recording layer, a filter layer, an optical absorption layer and a second substrate in this order, wherein the recording layer records information by use of holography; methods of producing the same, as well as optical recording methods for the recording media and optical reproducing methods. Preferably, the optical absorption layer absorbs a light having a wavelength within 350 nm to 600 nm and transmits a light having a wavelength within 600 nm to 900 nm.