37results about How to "Less scattering" patented technology

A semiconductor light emitting device comprising a light emitting layer disposed between an n-type region and a p-type region is combined with a ceramic layer which is disposed in a path of light emitted by the light emitting layer. The ceramic layer is composed of or includes a wavelength converting material such as a phosphor. Luminescent ceramic layers according to embodiments of the invention may be more robust and less sensitive to temperature than prior art phosphor layers. In addition, luminescent ceramics may exhibit less scattering and may therefore increase the conversion efficiency over prior art phosphor layers.

An optical device integrated head having high light utilizing efficiency by decreasing the propagation loss caused from an optical source to a recording medium, conducting by mounting according to compact active alignment method for efficiently guiding a light generated from a laser device to the top end of a head, in which a light source device mounted on a submount has a mirror portion having an inclinated surface to at least a portion of one edge thereof for reflecting an output light from the optical source device at the inclinated surface, a structural member including a lens structure for further allowing a light to pass through the submount, and an optical waveguide disposed passing through a slider for mounting the submount, and the optical source and the slider are positioned by using active alignment of light in a chip-on carrier structure having the optical source device mounted on the submount.

This invention is a method of assembling precision optical or optomechanical components that provides first and second components having respective first and second polished contacting surfaces to be bonded; generates a hydrophilic surface on at least a portion of at least one of the first or second surfaces; rinses the hydrophilic portion with water or another suitable solvent; and contacts the hydrophilic portion of the first or second components with the respective contacting surfaces to be bonded, while maintaining alignment of the two components, to form a single structure

The invention relates to the manufacture of a cold-rolled steel sheet having a strength of more than 900 MPa, an elastic limit of more than 700 MPa and distributed elongation of more than 12%, the composition of which includes, the contents being expressed as weight percentages: 0.26%≦C≦0.45%, 1.0%≦Mn≦3.0%, 1.0%≦Si≦3.0%, Al≦0.10%, 0%≦Cr≦1.5% %, S≦0.005%, P≦0.020%, Nb≦0.1%, Ti≦0.020%, V≦0.015%, N≦0.01%, the remainder of the composition being iron and inevitable impurities resulting from the production process. The microstructure, given in surface proportions, comprises 13% to 25% residual austenite and 13% to 30% MA islands, the remainder consisting of bainite and possibly ferrite.

An optical engine for an image projector comprises a light source, a taper rod, at least one light condenser, a prism module, a Digital Micromirror Device (DMD) and a projection lens set. One end of the taper rod is adjacent to the light source. Light generated by the light source is guided by the taper rod following a light path. The taper rod has increasing sizes of cross-sections along the light path, so as to decrease the dispersion angle of light, make the light more uniform, and increase the brightness of light. The prism module includes a first prism having a right triangle cross-section and a second prism having a wedge cross-section. The prism module receives the light from the condenser, passes the light toward the DMD, receives the light reflected by the DMD, and then passes the reflected light toward the projection lens set. The projection lens set projects the light on an external projection plane.

Disclosed are methods, systems, and computer-product programs for increasing accuracy in cone-beam computed tomography.

A semiconductor device of a double diffused MOS structure employing a silicon carbide semiconductor substrate. The semiconductor device comprises a silicon carbide semiconductor epitaxial layer provided on a surface of the silicon carbide semiconductor substrate and having a first conductivity which is the same conductivity as the silicon carbide semiconductor substrate, and an impurity region formed by doping a surface portion of the silicon carbide semiconductor epitaxial layer with an impurity of a second conductivity, the impurity region having a profile such that a near surface thereof has a relatively low second-conductivity impurity concentration and a deep portion thereof has a relatively high second-conductivity impurity concentration.

The method for producing single crystals includes drying crystal raw material by removing water, reaction of impurities with a scavenger, preferably a metal halide, and homogenizing the melt. The method is performed with the raw material in a melt vessel with a variable-sized through-going opening, in which drying occurs at 100° C. to 600° C. for at least 20 hours with a geometric conductance value for the through-going opening of 2.00 to 30.00 mm²; the reacting occurs at 600° C. to 1200° C. for at least nine hours with a geometric conductance value of 0.0020 to 0.300 mm² and the homogenizing occurs at above 1400° C. for at least six hours with a geometric conductance value of 0.25 to 1.1 mm². Alternatively the geometric conductance value is the same during drying, reacting and homogenizing and takes a value between 0.25 and 1 mm².

The invention discloses a backlight module and a liquid crystal display. The backlight module comprises a back plate, a light source arranged on the back plate, and a fluorescent film arranged above the light source, and fluorescent particles are distributed in the fluorescent film and are used for scattering light emitted by an LED, wherein the distribution density of the fluorescent particles gradually decreases from the center to the periphery of an area in the area of each LED corresponding to the fluorescent film. Based on the backlight module, the uniformity of brightness of emergent light of the backlight module is improved, and the large viewing angle display quality of an LCD is improved.

The invention discloses a lentinan granule comprising the following raw materials in percentage by weight: 0.5-5% of lentinan, 60-80% of filler, 10-30% of adhesive and 0.5-5% of water. The invention further discloses a preparation method of the lentinan granule and use of the lentinan granules in preparation of veterinary immune enhancing medicaments. The lentinan granule disclosed by the invention is conveniently used, can be swallowed directly and can also be dissolved in water for drinking, and further can be used as a feed additive; secondly, the lentinan granule disclosed by the invention can reduce the stress reactions of animal bodies caused by medicament administration; in addition, the lentinan granule disclosed by the invention has the advantages of small dispersion, adhesiveness, aggregation and hygroscopicity; and the content of medicament is stable.

The invention relates to a solar energy illumination device, comprising a shell provided with a transmission region at top and a solar energy cell module arranged inside the chamber of the internal of the shell. The solar energy cell module comprises a light-collecting board, a ring-shaped side reflecting disk, a solar energy cell serial group, a luminous body, an electronic control circuit and an energy storage device. The top of the ring-shaped side reflecting disk is covered and sealed with the light-collecting board and close to the transmission region of the shell. The solar energy illumination device also comprises the solar energy cell serial group which is arranged at the center of the inner side at the bottom of the ring-shaped side reflecting disk, the luminous body which is arranged inside the ring-shaped side reflecting disk and a circuit board which is arranged inside the chamber and controls the working of the luminous body and the solar energy cell serial group. The circuit board is provided with the energy storage device which can store the energy generated by the solar energy cell serial group in daylight and provide energy for the illumines body at night. By arranging the side reflecting disk, the energy-collecting efficiency of the solar energy cell serial group is improved and the working time of the luminous body at night is prolonged. The solar energy illumination device is waterproof, shockproof and maintenance-free.

A heat exchanger includes an auxiliary heat exchanger, which has plate-shaped first fins and a plurality of first heat transfer tubes, and a main heat exchanger which has plate-shaped second fins and a plurality of second heat transfers tubes. A plurality of burrs are present at specified intervals on edges of the first fins. The auxiliary heat exchanger and the main heat exchanger are so positioned that the edges of the first fins on which the burrs are present are in contact with edges of the second fins, and the edges having the burrs present thereon are positioned on the inner side.

Individual time stamp data inputs generated by different viewers of a broadcast or other video output are used to identify parts of the video data to be used to generate a sequence of video clips or “highlights”. The individual time stamps for each event are aggregated to generate a single marker flag (93) for each event, defined for example as the median (95) (or some other point) in the distribution (90) of time stamps.

A device for transmitting light signals includes two electrode plates, a spacing structure, a cladding fluid, and a core fluid. The spacing structure, the cladding and core fluids are disposed between the electrode plates. The refractive index of the core fluid is higher than that of the cladding fluid. The core fluid is located on an electrode of one of the electrode plates, and its shape corresponds to the shape of that electrode. The shape and position is changeable and programmable by the electrodes of one of the electrode plates. The core fluid is further surrounded by the cladding fluid, forming an optical waveguide. Via these arrangements, the interface between the core and cladding fluids is much smoother than that between a fluid and a solid, so that the light signals are less likely to scatter while transmitted, in the core fluid. Therefore, the attenuation and reduction of the intensity of the light signals can be decreased. A method for transmitting light signals is also provided.

A method of manufacturing a thin-film electronic device comprising providing a dielectric layer on a base, providing a first electrically conductive layer having a first opening and covering at least part of the dielectric layer; and forming a first through-hole extending through the base and communicating with the first opening. A second electrically conductive layer may be provided on the base, and a dielectric layer may be provided so as to cover at least part of this second conductive layer.