98results about How to "Uniform emission" patented technology

A transfer material comprises a temporary support and an electroluminescent element layer, and positioned between said temporary support and said electroluminescent element layer. Using the above transfer material, an organic electroluminescent device is produced by a method comprising the steps of superposing the transfer material on an electrode layer side of a substrate has partially or wholly transparent or opaque electrode layer, contacting the transfer material and the substrate, and transferring at least one electroluminescent element to the electrode layer side of a substrate with at least one heating means and pressing means.

The present invention provides a method of manufacturing a field emitter electrode using self-assembling carbon nanotubes as well as a field emitter electrode manufactured thereby. The method comprises anodizing an aluminum substrate to form an anodized aluminum oxide film having a plurality of uniform pores on the aluminum substrate, preparing an electrolyte solution having carbon nanotubes dispersed therein, immersing the anodized aluminum substrate in the electrolyte solution and applying a given voltage to the aluminum substrate as one electrode, so as to attach the carbon nanotubes to the pores, and fixing the attached carbon nanotubes to the pores.

A light guide plate has a light-receiving surface, a light-emitting surface, and a light-reflecting surface. Multiple first arc-shaped longitudinal structures are arranged on the light-receiving surface with their longitudinal directions being substantially parallel with each other. Multiple second arc-shaped longitudinal structures are arranged on the light-emitting surface with their longitudinal directions being substantially parallel with each other. The light-reflecting surface is shaped to form a plurality of prismatic structures, and a luminance-adjusting structure is formed on part of the light-reflecting surface near the point light source and interlaced with the prismatic structures.

The invention provides a method for achieving a holographic waveguide grating large exit pupil. The holographic waveguide grating large exit pupil is achieved through a micro display part, a collimating lens part and a holographic waveguide grating part. Light waves which have different light intensities in different areas are modulated in a specified plane by means of the interference modulation method. The light waves interfere with a plane wave beam, and the same grating with different diffraction efficiencies is manufactured at the same time, so that uniform diffraction and exit of the light waves are achieved, and then the holographic waveguide grating large exit pupil is achieved. The method is used for designing diffraction optical elements of any structures, and the feasibility of the method is verified through experiments. The method is used for manufacturing a holographic grating which has different diffraction efficiencies in different areas, and therefore uniform-exit large exit pupil holographic waveguide imaging is achieved.

The invention discloses a method for implementing holographic waveguide grating large exit pupil. The method is performed through a micro display part, a collimating lens and a holographic waveguide gratin; the interference modulating method is carried out to modulate light waves with different light strength in different areas within the specified plane, and the light waves interferes with another plane beam, the same gating with different diffraction efficiency can be manufactured synchronously, and therefore, the uniform diffraction emission of the light waves can be performed, and as a result, the holographic waveguide grating large exit pupil can be achieved. According to the method, the method of designing a diffraction optical element of any structure is proposed, and the feasibility of the method is verified by experiment; the method is applied to the manufacturing of a holographic gating with different diffraction efficiency in different areas, and therefore, the uniformly-emitted large exit pupil holographic waveguide imaging can be achieved.

A plurality of high atomic number wires are sintered together to form a porous rod that is parted into porous disks which will be used as x-ray targets. A thermally conductive material is introduced into the pores of the rod, and when a stream of electrons impinges on the sintered wire target and generates x-rays, the heat generated by the impinging x-rays is removed by the thermally conductive material interspersed in the pores of the wires.

The invention relates to an LED area light source device which comprises a framework, a plurality of point light sources, first transparent prismatic lenses and second transparent prismatic lenses, wherein the framework comprises a substrate, and the plurality of point light sources are arrayed on the substrate; the first prismatic lenses are arranged above the point light sources, the second prismatic lenses are arranged above the first prismatic lenses, and the first prismatic lenses and the second prismatic lenses are respectively provided with a light inlet surface and a light outlet surface opposite to the light inlet surface; a plurality of long strip-shaped arc protrusions are formed on the light outlet surfaces of the first prismatic lenses; a plurality of long strip V-shaped ridge structures extending along at least two different directions are formed on the light outlet surfaces of the second prismatic lenses and mutually staggered; a first preset distance is spaced between the first prismatic lenses and the point light sources; and a second preset distance is spaced between the second prismatic lenses and the first prismatic lenses.

The invention relates to an LED area light source device which comprises a lamp holder, a lamp pole arranged on the lamp holder, a plurality of point light sources arranged on the outer surface of the lamp pole, first prismatic lenses and second prismatic lenses, wherein the first prismatic lenses and the second prismatic lenses correspond to the plurality of point light sources and are sequentially arranged at the outer side of the lamp pole; the first prismatic lenses and the second prismatic lenses are respectively made of transparent substrates and respectively provided with a light inlet surface and a light outlet surface opposite to the light inlet surface; a plurality of uniformly arrayed long strip-shaped arc protrusions are respectively formed on the light outlet surfaces of the first prismatic lenses and the second prismatic lenses; the first prismatic lenses are arranged along the length extension direction of the arc protrusions and arrayed along a first direction relative to the axial direction of the lamp pole, the second prismatic lenses are arranged along the length extension direction of the arc protrusions and arrayed along a second direction relative to the axial direction of the lamp pole, and the first direction and the second direction are orthogonal; and a first preset distance is spaced between the first prismatic lenses and the point light sources, and a second preset distance is spaced between the second prismatic lenses and the first prismatic lenses.

In a lighting apparatus for conducting product inspection by irradiation of LED light at an improved inspection accuracy, an LED light source device for scattering lights of a plurality types of LEDs of different emission wavelengths by a light guiding member and irradiating them from a light emitting surface in the direction of the lighting optical axis is attached to a casing having a light transmitting imaging section through which an imaging optical axis extends, the light guiding member has a plurality of light guiding plates with the light emitting surface being directed to the lighting optical axis, each of the light guiding plates is mounted with LEDs at a predetermined pitch on the plane perpendicular to the light emitting surface, such that the combination of the emission wavelengths is identical for each of the rows in the direction of the lighting optical axis.

The invention relates to an LED area light source device which comprises a framework, a plurality of point light sources, first transparent prismatic lenses and second transparent prismatic lenses, wherein the framework comprises a substrate, and the plurality of point light sources are arrayed on the substrate; the first prismatic lenses are arranged above the point light sources, the second prismatic lenses are arranged above the first prismatic lenses, and the first prismatic lenses and the second prismatic lenses are respectively provided with a light inlet surface and a light outlet surface opposite to the light inlet surface; first diffused structures are formed on the light outlet surfaces of the first prismatic lenses, and second diffused structures are formed on the light outlet surfaces of the second prismatic lenses; light entering the first diffused structures and the second diffused structures generates one or more effects of refraction, scattering and diffraction; a first preset distance is spaced between the first prismatic lenses and the second prismatic lenses; and a second preset distance is spaced between the second prismatic lenses and the first prismatic lenses.

A porous cathode structure is fabricated from a plurality of wires which are placed in proximity to each other in elevated temperature and pressure for a sintering time. The sintering process produces the porous cathode structure which may be divided into a plurality of individual porous cathodes, one of which may be placed into a dispenser cathode support which includes a cavity for containing a work function reduction material such as BaO, CaO, and Al2O3. The work function reduction material migrates through the pores of the porous cathode from a work replenishment surface adjacent to the cavity of the dispenser cathode support to an emitting cathode surface, thereby providing a dispenser cathode which has a uniform work function and therefore a uniform electron emission.