51results about How to "Improve brightness effect" patented technology

A brightness enhancement film includes a substrate, a plurality of curved prism units and a plurality of light scattering particles. The curved prism units are extended in parallel and formed on a first surface of the substrate. Each of the curved prism units includes at least one meandering surface to provide with changes in curvature. Thus, the meandering surface of the curved prism unit is able to refract incident light in two dimensions with respect to the substrate that may enhance entire light-collecting efficiency in two dimensions. The light scattering particles are disposed in the curved prism units.

A flat panel display is provided. The flat panel includes at least one light emitting device having a light emitting semiconductor device and a lens. The lens includes two reflective surfaces which are disposed at both sides with respect to a central axis of the lens. Refractive surfaces connect with the respective reflective surfaces and have a tilt included angle with respect to the central axis. Each of the refractive surfaces continuously extends from the reflective surface along a direction toward the central axis. A Fresnel surface is configured between the refractive surfaces. Light rays emitted from the light emitting semiconductor device reach the lens. A portion of the light rays reaching each of the reflective surfaces is reflected to at least one of the refractive surfaces and the Fresnel surface. The reflected light rays are refracted and collected with a convergent angle.

The invention discloses a method and device for laser-welding foil and a lug. The method comprises the following steps of taking at least one layer of the foil as a laser absorbing surface to put in front of the lug; adsorbing or pressing the foil and the lug together; arranging a laser focus on the lug; and welding the foil and the lug. The method adopts non-contact type laser welding to replaceconventional ultrasonic contact type welding, so that the foil and the lug are not affected by external force, and processing is stable. Laser processing efficiency is high, and multi-pulse light spots of laser can be adopted for process.

The invention discloses an anti-dandruff shampoo composition, which comprises the following components in percentage by weight: 5.0 to 50.0 percent of surfactant, 0.01 to 10.00 percent of unsaturated fatty alcohol (acid) ester, 0.1 to 5.0 percent of anti-dandruff agent, and the balance of carrier containing water, wherein the anti-dandruff agent is a composition of a non-hydrophilic particle anti-dandruff agent and a hexamidine derivative. The anti-dandruff shampoo composition uses the unsaturated fatty alcohol ester which has good compatibility with both scalp sebum and the non-hydrophilic particle anti-dandruff agent so that the active components of the non-hydrophilic anti-dandruff agent pass through the scalp sebum preferentially to directly act on oleophilic microorganisms in the scalp, and simultaneously the active components are combined with the hexamidine derivative to control the microorganisms from a water phase path, so the anti-dandruff shampoo composition achieves the same anti-dandruff effect with a low addition of the anti-dandruff agent, reduces the environmental pollution, and has an obvious effect of improving the hairline brightness of hair.

A light emitting device manufacturing method including the steps of corrugatedly scanning a laser beam along a plurality of division lines formed on a light emitting device wafer having a sapphire substrate layer and a light emitting layer to apply the laser beam to the sapphire substrate layer, thereby performing laser processing for the sapphire substrate layer and next applying an external force to a processed locus formed along each division line by the above laser processing to thereby divide the light emitting device wafer into a plurality of light emitting devices. The sapphire layer of each light emitting device has side surfaces whose horizontal sectional shape is a corrugated shape. Accordingly, the number of total reflections on the side surfaces of the sapphire layer can be reduced to thereby achieve efficient emergence of light from the sapphire layer.

An LED including housing, lead frame in the housing, light-emitting chip, and packed colloid; pit accommodation portion being disposed in the housing to expose lead frame, and multiple reflective sidewalls at various inclinations being disposed on a side of accommodation portion; the chip being disposed on a lead frame; streams of light form the chip traveling in different directions when reflected by those sidewalls; and most of those streams of light being emitted out of the accommodation portion to promote luminance performance of the LED.

An exemplary stereo display apparatus includes a pixel array and a lens array. The pixel array includes a plurality of pixel units arrayed in parallel rows and parallel columns. The lens array covers the pixel array, and includes a plurality of lenticular lens units arrayed in said rows and columns. The lenticular lens units are parallel to each other, and the adjacent lenticular lens units arrayed in columns have a stagger arrangement along a first direction along which the pixel units are arrayed in rows, thereby the adjacent lenticular lens units arrayed in columns are arranged in terraced steps.

A nitride based 3-5 group compound semiconductor light emitting device comprising: a substrate; a buffer layer formed above the substrate; a first In-doped GaN layer formed above the buffer layer; an InxGa1—xN / InyGa1−yN super lattice structure layer formed above the first In-doped GaN layer; a first electrode contact layer formed above the InxGa1—xN / InyGa1−yN super lattice structure layer; an active layer formed above the first electrode contact layer and functioning to emit light; a second In-doped GaN layer; a GaN layer formed above the second In-doped GaN layer; and a second electrode contact layer formed above the GaN layer. The present invention can reduce crystal defects of the nitride based 3-5 group compound semiconductor light emitting device and improve the crystallinity of a GaN GaN based single crystal layer in order to improve the performance of the light emitting device and ensure the reliability thereof.

The invention discloses a method for revealing and extracting a scene potential fingerprint. The method is characterized by comprising the following steps of: 1, irradiating a short-wave ultraviolet laser light which has a wavelength of 266 nm and is output by a neodymium doped yttrium aluminium garnet (ND-YAG) ultraviolet laser serving as a light source to a detection material on which the potential fingerprint is reserved; 2, filtering environmental parasitic lights by using a band-pass glass filter with the central wavelength of 266 nm, and transmitting a laser image of 266 nm reflected onthe detection material to an ultraviolet camera; and 3, receiving and recording the laser image with the wavelength of 266 nm transmitted by the band-pass glass filter by the ultraviolet camera. The invention also discloses a device for revealing and extracting the scene potential fingerprint. The invention can solve the problems of difficult revealing and extraction of invisible or indistinguishable traces and physical evidences in a criminal case scene, is particularly applicable to the revealing and extraction of the potential fingerprint on a surface of a smooth non-permeable detection material such as glass and smooth paper, and has the advantages of low background interference, high contrast and high revealing rate.

The invention discloses a skin-whitening and moisture-preserving skin care product for eyes and a preparation method for the skin-whitening and moisture-preserving skin-care product. The skin-whitening and moisture-preserving skin-care product contains the following ingredients in part by weight: 30 to 60 parts of alpha-mannosan, 0.01 to 0.5 part of tuckahoe sclerotium extract, 0.1 to 5 parts of angelica polysaccharide, 0.1 to 5 parts of angelica total organic acid, 0.1 to 6 parts of largehead atractylodes rhizome root extract and 40 to 75 parts of inocular mixture. After being used, the skin-whitening and moisture-preserving skin-care product has obvious skin-whitening and moisture-preserving effects, and has high capacity of inhibiting melanin and increasing the brightness of skin.

The invention discloses a Chinese herbal whitening composition, a facial mask and a preparation method of the facial mask. The Chinese herbal composition comprises the following main components: pearl, borax, amber, aloe powder, panthenol, nutmeg kernel oil, trehalose, a sargassum fusiforme extract, a safflower extract, a licorice root extract, a tribulus terrestris fruit extract, a paeonia suffruticosa root extract, an extract of the root and stem / root of medicinal solomonseal rhizome and zinc carbonate hydroxide. A mask pasting carrier is soaked into a herbal liquid of the Chinese herbal composition so as to form a facial whitening mask. The main components in the formula are prepared by virtue of a Chinese herb superfine pulverizing technology, so that the Chinese herbs are micronized and can easily penetrate through the mucosa of skin. Thus, the whitening effect is obvious after the facial whitening mask is used. The facial whitening mask has good abilities of inhibiting melanin and increasing skin brightness and a good moisture preserving effect, and has a strong moisturizing effect and a persistent water locking effect. Meanwhile, the facial whitening mask is safe and non-irritant and cannot perform an adverse reaction on a human body.

The invention discloses a media projector, receiving signals from analog and digital signal interfaces to play video and / or audio, able to connect with storage and backup power supplies and able to modularize; able to play and have 3D effect; using safe protection to internal multimedia signal transmission and able to set to generate watermark in the specific position as projecting; and each media projector uses a different unique watermark.

The invention discloses a light guide plate applied to an illuminated keyboard. A plurality of keyswitch modules is installed on the illuminated keyboard. The light guide plate is disposed beneath the keyswitch modules. The light guide plate comprises a main body and a reflective portion printed on a bottom of the main body. A light source is disposed close to the main body of the light guide plate. If the light source emits white light, the color of the reflective portion is different from that of the light source. If the light source emits non-white light, the color of the reflective portion is the same as that of the light source. Accordingly, the luminance will be greatly enhanced.

The invention discloses a weeding and tilling depth adjusting method, device and system, computer equipment and a storage medium, and the method comprises the steps: obtaining a rice seedling crop rowimage according to a time interval calculated according to the driving speed of an intertillage weeding machine; completing semantic segmentation of rice seedling pixels and inter-row weed pixels onthe rice seedling crop row image, and defining rice seedling crop rows according to the rice seedling pixels; grading the weed density according to the pixel values of the weeds in the rice seedling crop rows, and recording the position information of the weeds on the rice seedling crop row images; and controlling a tilling depth adjusting mechanism of the intertillage weeding machine to adjust the weeding tilling depth of the weeding part corresponding to the weed density grade according to the weed density grade and the position information. According to the invention, real-time identification of the density and position of weeds between rice seedling rows can be realized, corresponding weeding tilling depth adjustment is further realized, the impurity removal rate of the intertillage weeding machine is improved, and a foundation is laid for research and development design of the intelligent intertillage weeding machine between rice seedling rows.

The present invention discloses a multiple-wavelength light emitting diode that includes a fluorescent layer with a predetermined wavelength disposed at the bottom of the light emitting diode, such that a light emitting chip can be fixed onto a carrier and connected in parallel with the circuit of the light emitting chip by a gold wire. The light emitting chip is packaged by a package material to constitute a light emitting diode capable of combining the light source of the light emitting chip with the wavelength of the fluorescent layer, so as to produces the desired light color.

The invention discloses an embossing plate and an embossing method thereof. The embossing method comprises the following steps that S1, a base material is subjected to coating treatment of the first time, and a first coating is formed on the surface of the base material; S2, the first coating is subjected to nanometer microstructure printing of the first time, and first nanometer grain is formed; S3, the first nanometer grain is subjected to sputtering coating, and a sputtering coating is formed; S4, color printing is carried out, and a color printing layer is formed; S5, nanometer microstructure printing of the second time is carried out to form second nanometer grain; S6, highlight drilling and cutting are carried out; and S7, electric coloring is carried out. The embossing method of the embossing plate has a wide application range and is especially suitable for embossing of the surface of a product with the highlight and high-brightness effects. Meanwhile, different stereoscopic closed patterns good in stereoscopic effect can be manufactured through the embossing method of the embossing plate, and different colors can be manufactured on a same workpiece.

The invention discloses a method for revealing and extracting a scene potential fingerprint. The method is characterized by comprising the following steps of: 1, irradiating a short-wave ultraviolet laser light which has a wavelength of 266 nm and is output by a neodymium doped yttrium aluminium garnet (ND-YAG) ultraviolet laser serving as a light source to a detection material on which the potential fingerprint is reserved; 2, filtering environmental parasitic lights by using a band-pass glass filter with the central wavelength of 266 nm, and transmitting a laser image of 266 nm reflected onthe detection material to an ultraviolet camera; and 3, receiving and recording the laser image with the wavelength of 266 nm transmitted by the band-pass glass filter by the ultraviolet camera. The invention also discloses a device for revealing and extracting the scene potential fingerprint. The invention can solve the problems of difficult revealing and extraction of invisible or indistinguishable traces and physical evidences in a criminal case scene, is particularly applicable to the revealing and extraction of the potential fingerprint on a surface of a smooth non-permeable detection material such as glass and smooth paper, and has the advantages of low background interference, high contrast and high revealing rate.

The invention provides a hydroxyl acrylic ester emulsion for artificial stone manufacturing, a preparation method and artificial stone manufactured by the hydroxyl acrylic ester emulsion. The hydroxyl acrylic ester emulsion comprises the following substances: a mixed monomer 1, a mixed monomer 2, polymer polyol, an emulsifier, an initiator and water. The preparation of the hydroxyl acrylic ester emulsion adopts two steps: multiple chemical structure units are introduced for copolymerization, and the polymer polyol is added in the reaction process, so that the compressive strength, the bending strength and the hardness of artificial stone are further improved. Meanwhile, hydroxyl in the hydroxyl acrylic ester emulsion can be cross-linked with silicate in packing for manufacturing the artificial stone, the manufactured artificial stone ingredients are better in scattered fineness, the structure is more compact and uniform, and the various strengths and the glossiness of the manufactured artificial stone are better.

A light combining module includes a first light source, a second light source, a first dichroic mirror, and a first alignment structure. The first light source is used to output a first light. The second light source is used to output a second light. The first dichroic mirror is disposed on a transmission path of the first light and the second light, wherein the first light is incident on the second light source via the first dichroic mirror. The first alignment structure adjusts the position of the second light source.

Disclosed herein is a light guide plate formed by injection molding of an aromatic polycarbonate resin that is a polymer of an aromatic dihydroxy compound and a diaryl carbonate. The aromatic dihydroxy compound and the diaryl carbonate are present in a mole ratio of about 1:1.02 to about 1:1.35, and the aromatic polycarbonate resin has a weight average molecular weight from about 10,000 g / mol to about 18,000 g / mol and includes about 5 mol % to about 30 mol % of terminal hydroxyl groups relative to total moles of terminal groups. The light guide plate formed of the aromatic polycarbonate resin can reduce a yellowing phenomenon upon injection molding, can exhibit low color deviation under high temperature and high humidity conditions, and can secure excellent properties in terms of discoloration resistance, and brightness quality (brightness uniformity), and the like.

An AlGaInP light emitting diode with improved illumination is provided. The AlGaInP light emitting diode includes a semiconductor substrate, a light re-emitting layer, an AlGaInP layer with a first doping concentration, an AlGaInP lower cladding layer with a second doping concentration less than the first doping concentration, an undoped AlGaInP active layer, an AlGaInP upper cladding layer, a window layer, an annular-shaped top electrode on the window layer and a layered electrode on a bottom of the semiconductor substrate. The light re-emitting layer includes at least a first region formed of the light re-emitting layer and a second region formed of Al2O3 enclosing the first region. Since AlGaInP layer between the AlGaInP lower cladding layer and the light re-emitting layer has the first doping concentration larger than that of the AlGaInP lower cladding layer, the AlGaInP layer provides a transverse current spreading. The Al2O3 region also improves light reflection illuminating on the light re-emitting layer. As a result, the brightness performance of the light emitting diode is improved.

The invention discloses an automobile instrument liquid crystal display light guide plate which comprises a plate body. The plate body comprises a light entrance surface with light incident from side and a light exit surface with light emitted from the front. Rows of scattering dots with same size and shape are distributed on the light exit surface. The scattering dots of two adjacent rows are arranged alternately. The shape of the scattering dots is a regular polygon. The center distance between the circumcircles of any two adjacent regular polygons is three times of the radius of a circumscribed circle. According to the invention, the scattering dots in the shape of a regular polygon are arranged on the light guide plate; the light scattering effect of the light guide plate is greatly improved; and the light guide plate has the effect of uniform brightness.