100results 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.

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 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.