185 results about "Optical refraction" patented technology

Switchable retroreflector devices that are modulated via electrowetting. The devices include an electrically-conductive polar fluid and a non-polar fluid that is immiscible with the polar fluid. The polar and the non-polar fluids differ in at least one optical property. The fluids are contained in a fluid vessel, or an array of fluid vessels. The fluids are at least partially viewable. A voltage source is configured to selectively apply an electromechanical force to the polar fluid causing repositioning and/or geometrical change of the fluids such that retroreflection in created, or suppressed, by optical refraction or by optical attenuation.

A touch panel, which contains a substrate, a mask layer, a sensing circuit layer and a barrier layer, is disclosed. The mask layer is disposed around the bottom surface of the substrate. The sensing circuit layer is located on the same side of the substrate with the mask layer, and the surrounding area of the sensing circuit layer is shielded by the mask layer. In addition, the area of the sensing circuit layer exposed from the mask layer is defined as a sensing region. Furthermore, the barrier layer is disposed between the substrate and the sensing circuit layer and between the mask layer and the sensing circuit layer. Concurrently, the barrier layer further provides separation between the mask layer and the sensing circuit layer. The barrier layer has a transparent appearance. Particularly, the barrier layer is provided for changing optical refraction and harmonizing optical reflection index and transmittance.

In a variable shaped lamp shade of an LED lamp, the lamp shade is made of a translucent material matched with an LED lamp strip and a lamp holder and includes at least one strip-shaped optical refraction unit having an external refractive surface, an internal refractive surface corresponding to the external refractive surface, and an assembling structure for matching the lamp holder. The external refractive surface or internal refractive surface is a curved surface without an inflection point and the curved surface has a constant or gradually changing curvature; and a non-curved surface is formed on the other side. The variable shaped lamp overcomes the problems of conventional LED lamp strips having a low illumination and a non-uniform illumination caused by a direct projection or an installation of a conventional lamp shade, and a low light utility caused by a too-large illumination range.

The present invention discloses an LED three-dimensional optical system design method with given illumination distribution and an optical system, which belongs to the non-imaging optical technique of the applied optics field. A three-dimensional non-imaging optical system is formed in a region which has given illumination distribution, by using a light emitting diode as a light source. A three-dimensional lens is designed with the optical system. According to the geometrical shape of the given illumination distribution region, complying with the law of conversation of energy, the surface of the light source and the illumination plane are divided into corresponding energy regions on the long axis direction of the region in accordance with optical refraction, and energy division is carried out in the short axis direction in accordance with the principle of common function of total internal reflection and refraction. The coordinates and the normal vectors of all feature points of the optical system surface of the light source along the long axis direction and the short axis direction are calculated according to the energy corresponding relationship, so as to determine the optical system surface. The method and the system contribute to sufficiently utilizing energy and reducing engineering cost. The encapsulation of the optical system is flexible. Single chip encapsulation and multi-chip encapsulation can be adopted. The arrangement of a plurality of the optical systems is free, simple and flexible.

The invention provides a curved surface bonding apparatus and a bonding method thereof. An inflation mold can use at least one inflation hole to inflate an air pressure film to drive the central position of a soft component to be ridged to be arch-shaped, when the soft component and a curved surface object adsorbed by an adsorption mold are bonded to each other, the ridged center of the soft component can be used to really contact the center of the curved surface object, and then the outward extending and pressing is carried out from the center for close bonding and positioning to ensure thatgas between the curved surface object and the soft component is completely extruded outwards, so that no air bubbles are generated between the curved surface object and the soft component, and no optical refraction problem is caused due to the air bubbles. At the same time, the soft component can be prevented from generating wrinkles during the bonding process, and can be accurately and closely bonded to the curved surface object, so that the purpose of improving the producing process and the product qualification rate is achieved.

The invention belongs to the field of preparation of soft-light bricks, and particularly relates to 12-degree soft-light porcelain glaze facing bricks. Each 12-degree soft-light porcelain glaze facingbrick comprises a green body, a ground glaze and a facing glaze, wherein the facing glaze is prepared from potassium feldspar, burnt talc, barium carbonate, calcined alumina, calcined zinc oxide, calcined kaolin, kaolin, matte frit, transparent frit and forging light particles. The green body of the soft-light porcelain glaze facing brick is low in water absorption rate (0.05 to 0.1 percent); therupture modulus is large (40 to 45 MPa); a green brick is high in intensity, and is not easy to break; the edge bending curvature (-0.03 to +0.05 mm) and the central bending degree (-0.04 to +0.06 mm) are extremely small; the brick surface is flat, so that the bricks look tidy and attractive after being paved. The soft-light bricks promote a light pollution-free healthy atmosphere; according to the spatial optical refraction rule, light reflected by the bricks is controlled horizontally at 12-degree soft light, so that the spatial light sensation is moderate in brightness and darkness, the most comfortable light sensing state is created for eyes, and the potential fatigue hazard is avoided.

The present invention provides a display front panel having an anti-reflection layer characterized in that the anti-reflection layer comprises a first layer and a second layer having a smaller optical refractive index value than that of the first layer which are laminated to at least one side of the surfaces of a base plate of a display front panel in a way that the first layer faces the surface(s) of the base plate and the second layer is laminated on the first layer, wherein the first layer is a cured film made of a composition containing (A) a polymerizable compound or an oligomer thereof having at least two unsaturated double bonds, (B) an organo-silicon compound or an oligomer thereof and (C) particles of metal oxide, and the second layer is a cured film made of an organo-silicon compound.

The invention provides a method for producing a microcrystal glass ceramics composite board. The method comprises the following steps of: 1) applying powder and stamping to form a green brick; 2) forming a ground coat layer and a printing layer; 3) carrying out primary firing; 4) dispersing microcrystal glass fusion blocks; 5) carrying out secondary firing; and 6) edging and polishing, wherein a die cavity of a stamping mould used in step 1) has a concave-convex pattern, and the distance d between the raised place of the concave-convex pattern and the reference surface of the die cavity and the distance d between the recessed place of the concave-convex pattern and the reference surface of the die cavity are 0.22-1.1mm. The concave-convex pattern, the pattern of the printing layer and the color combination on the upper surface of a green brick layer of the glass ceramics composite board endow the product with an aesthetic feeling, the concave-convex surface texture transition is continuous and natural, the pattern effect can be combined in multiple ways, the designable space is large, abundant color and gloss matching decorating effects are provided, and the optical refraction of the surface crystallite glass layer ensures that the product has a three-dimensional feeling.

The invention relates to a polarized spectacle lens structure, which comprises a thermoplastic resin lens layer and a polarizing film assembly, wherein the polarizing film assembly consists of a combining film layer, a polarizing film and a protective film layer; the combining film layer and the protective film layer are respectively bonded to two sides of the polarizing film through a bonding agent; and the combining film layer in the polarizing film assembly is combined into a whole with the thermoplastic resin lens layer by an injection molding process. The structure overcomes the defects that a common polarized optical spectacle lens has poor temperature performance, unstable arc bending and easy bouncing and deformation, cannot meet optical refraction standard, and has poor definition of transmittance images and image distortion, and the surface of the common polarized optical spectacle lens is easy to scratch and wear in the prior art; through the design, the positioning of an optical central point is accurate; the combining film layer is combined into a whole with the thermoplastic resin lens layer through the injection molding process, so the peel strength is greatly improved; and the structure has the advantages of stable optical property, clear images, temperature and humidity resistance, no deformation and long service life.

Embodiments are provided for photonic chip waveguides with improved coupling efficiency to optical fibers. In an embodiment, a photonic chip comprises a semiconductor substrate, a dielectric layer on the substrate, and a tapered silicon or semiconductor waveguide embedded in the dielectric layer. The dielectric layer has lower optical refractive index than the tapered waveguide and serves as a cladding for the tapered waveguide. The chip further includes, on the substrate, a dielectric waveguide adjacent to the dielectric layer. The tip of the tapered waveguide is embedded in the dielectric waveguide. The dielectric waveguide serves to couple the tapered waveguide to an optical fiber, enlarge and better confine the light propagation mode from the taper waveguide to the fiber.

An adjustable prism device for training vision has a fixing part with a window and arranged in the front of the eyeballs of a user, an adjustable optical refraction unit arranged in said window and having the first and the second lenses, and a driver unit for driving the second lens to rotate relatively to the first lens in order to change the included angle between two lenses and in turn the refraction state, which can induce the eyeballs to be projected for training their vision.

The invention discloses a measurement method of a gas injection flow field. A differential interferometry system is formed by Wollaston prism optical elements; the center section of a spatial flow field of a test section is imaged, and differential interference fringe charts with carrier wave fringes are collected at any moment before air flow injection and during air flow injection, so that the fringe order distribution and the fluid optical refractive index gradient in a whole field are obtained, and the density gradient field, the density field, the temperature field and the temperature gradient field of a fluid also can be obtained synchronously. The analyzing and treating method of fringe charts, which is disclosed by the invention, can be used for basically eliminating experiment errors caused by the differential interferometry system, has a low shock-resistant requirement, is convenient to apply, and overcomes problems caused by flow field instability.

Treatment table verification techniques involve comparing intended refraction information with expected optical refraction information, and validating or qualifying the treatment table based on such comparisons. Systems and methods for verifying treatment tables provide enhanced safety for laser vision correction treatments.

Some embodiments of the invention relate to a rotation laser and a method for operating a rotation laser. The rotation laser may be provided with a laser light source for generating a laser beam, a deflection means rotatable about a rotation axis and serving for the directional emission of the laser beam, and an optical system comprising one or more lenses for manipulating the laser beam. In some embodiments, at least one of the lenses is a lens which is deformable in a targeted manner by actuators. In some embodiments, a control unit is included for manipulating the at least one lens. In some embodiments, the at least one lens has at least four actuators which are drivable by the control unit and/or which are arranged in a manner distributed along a circumference of the lens.

The invention relates to a broad-spectrum wide angle absorption solar cell moth-eye antireflection structure based on a monocrystalline silica substrate and a preparation method thereof, which is characterized by having the aid of the bionics principle, taking a moth-eye micro-nano structure as an antireflection layer and improving optical energy capture; the micro-nano structure is formed by taking dense monolayer silicon or a silicide particle network formed by a drawing-film (LM) method as a reticle mask; forming the micro-nano structure by adopting the dry etching process to etch monocrystalline silicon, thus preventing the defect of insufficient etching depth limit of a wet etching method; adjusting the size and density of reticle mask particles to regulate the optical refraction coefficient gradient of the adjusting moth-eye micro-nano structure so as to realize wide-angle absorption of wide incident light with 0-60 degrees; adopting the method for adjusting the size (20-800 NM), depth and periodicity of the micro-nano structure to realize optical energy absorption of infrared, visible and ultraviolet (250-2.5 NM) broadband section, thereby increasing cell efficiency.

The invention discloses a preparation method of a nano cup array biosensor for ionone detection. The method comprises the steps that a nanoscale cup-shaped structure is constructed by a nano impressing technology; gold nanoparticles are deposited on a side wall of a nano cup; odorant binding protein Acer-ASP2 is fixed on the side wall of the nano cup by electrostatic adsorption of the gold nanoparticles; during detection, a target molecule ionone is specifically bound with the odorant binding protein to result in change of an optical refraction characteristic of the side wall of the nano cup; and a spectrum of transmission light passing through the biosensor is changed correspondingly, so that the detection of the target molecule ionone is realized. Compared with the traditional ionone detection means, the nano cup array biosensor avoids a complicated light path required by optical detection and is simple, convenient and quick to operate based on the advantages of high sensitivity and specificity of the optical detection means.

An exemplary jewelry spring ring clasp assembly includes a ring element and a setting element. The ring element extends circumferentially about a main axis to define a ring aperture therethrough. A static segment of the ring element has an inboard face and an outboard face disposed opposingly along the main axis. A door segment of the ring element is actuatable between closed and open positions. The setting element is in fixed engagement with the static segment, and is configured to retain an ornamental element in a fixed position along the main axis so that the ornamental element visually obscures the ring aperture and the ring element from a viewpoint defined outward of the outboard face. The visual obscurement may apply to at least a circumferentially-continuous portion of the ring element, and may be due in part to optical refraction through the ornamental element or optical opacity of the ornamental element.

A photonic waveguide assembly has a photonic waveguide for transmission of light or a substrate, and an optical refractive index modulator positioned about said photonic waveguide to modulate the phase or amplitude, or combination thereof of the light traveling in the photonic waveguide, or transmitting through or reflecting of the substrate.

The invention provides a measurement apparatus and method for monitoring clearance generated in air preheater by using double laser. The apparatus includes two same laser measurement mechanisms which are horizontally arranged in a side by side manner. Each laser measurement mechanism includes a laser distance measuring sensor, an optical axis refraction lens barrel and a center air canister. An optical refraction assembly is arranged inside the L-shaped optical axis refraction lens barrel. One of the laser measurement mechanisms has a center air canister having a lower end aligned with a reflection calibration target and anther laser measurement mechanism has a center air canister having a lower end aligned with a detection angle iron of a rotor. The method includes two stages, namely setting an initial value and conducting real measurement, and a clearance value as required will be obtained by subtraction between the results measured by the two laser measurement mechanisms. According to the invention, the apparatus is simple in structure and the method is novel. The apparatus can perform whole-process monitoring of the clearance between the rotor of the air preheater and a fanning strip. The apparatus is characterized by high measuring accuracy, high temperature resistance, long service life, and convenient repairing and maintenance. The embodiments of the invention can be widely applied to the fields of monitoring thermal power plant, such as the clearance between the rotor of the air preheater and the fanning strip, rotor deformation, fanning strip displacement, and the like.

The invention relates to an organic component emitting white light upward having an electrode (1), a counter electrode (2) constructed in a transparent manner and as a cover electrode and an arrangement of organic layers (3) which is disposed in contact with and between the electrode (1) and the counter electrode (2) and which is configured to emit light when applying an electrical potential to the electrode (1) and the counter electrode (2), a cover layer (6) is applied to a side of the counter electrode (2) facing away from the arrangement of organic layers (3), having a thickness in nanometres within a layer thickness range D as follows: D=d±(0.2×d), wherein d=10.4n²−75n+150 and n is the optical refractive index of the cover layer (6).