904 results about "Optical quality" patented technology

An improved touch screen provides enhanced electrical performance and optical quality. The electrodes on the touch screen are made of a mesh of conductors to reduce the overall electrode resistance thereby increasing the electrical performance without sacrificing optical quality. The mesh electrodes comprise a mesh pattern of conductive material with each conductor comprising the mesh having a very small width such that the conductors are essentially invisible to the user of the touch screen.

An improved touch screen has enhanced optical performance and aesthetic quality. The electrodes on the touch screen employ additional fine traces of conductive material to reduce the overall electrode trace resistance to increase electrical performance without sacrificing optical quality. The additional fine traces of conductive material may be placed on the top of the ITO traces or in channels inside the boundaries of the ITO traces. The additional traces preferably run the length of the ITO traces to reduce the resistance in the longer dimension. Further, the additional traces are very small in width such that in the aggregate they cover only a small portion of the ITO electrode trace in lateral dimension to reduce the visibility of the additional traces. The conductive material may also be formed as a plurality of geometric shapes substantially forming a line in the longer dimension of the transparent conductive traces to reduce the visibility of the conductive material.

Described herein are the materials, mechanisms and procedures for optimizing various performance parameters of HPDLC optical devices in order to meet differing performance requirements. These optimization tailoring techniques include control and independent optimization of switchable HPDLC optical devices to meet the demanding requirements of anticipated applications for, inter alia, the telecommunications and display industries. These techniques include optimization of diffraction efficiency, i.e., index modulation, polarization dependence control, haze, cosmetic quality, control of response and relaxation time, voltage driving for on and off switching, and material uniformity. This control and independent optimization tailors properties of switchable HPDLC optical devices according to the specific requirements of the application of the switchable HPDLC optical device. The invention disclosed herein retains the desirable attributes of the multi-functional acrylate system for forming HPDLC optical devices, but adds new materials to the acrylate system and/or new process control to the recording to optimize performance parameters as may be needed for specific applications. This results in high optical quality switchable holograms with good diffraction efficiency and low, stable switching voltage.

Fused ring bridge, ring locked dyes that form thermally stable photorfractive compositions. The fused ring bridge structures are pi -conjugated bonds in benzene-, naphthalene- or anthracene-derived fused ring systems that connect donor and acceptor groups. The donor and acceptor groups contribute to a high molecular dipole moment and linear polarizability anisotropy. The polarization characteristics of the dye molecules are stabilized since the bonds in the fused ring bridge are not susceptible to rotation, reducing the opportunity for photoisomerization. The dyes are compatible with polymeric compositions, including thermoplastics. The dyes are electrically neutral but have charge transport, electronic and orientational properties such that upon illumination of a composition containing the dye, the dye facilitates refractive index modulation and a photorefractive effect that can be utilized advantageously in numerous applications such as in optical quality devices and biological imaging.

A method of determining reflective optical quality of a reflective product includes reflecting a first gray-scale pattern off the product; obtaining a first image of the first pattern with an image pickup device after the first pattern has reflected off of the product; and determining optical quality of the product based on data obtained from the first image. An apparatus for determining reflective optical quality of such a product is also disclosed.

The present invention provides a light source having an improved output optical quality. In general, the light source comprises one or more light-emitting elements in each of at least a first, a second and a third colour. The combined spectral power distribution of these light-emitting elements generally defines a spectral concavity. The light source further comprises a light-excitable medium configured and disposed to absorb a portion of the light emitted by one or more of the light-emitting elements and emit light defined by a complementary spectral power distribution having a peak located within the concavity. By combining the spectral output of the light-emitting elements with the spectral output of the light-excitable medium, an optical quality of the light source is improved.

The present invention includes polymer interlayers that are used in multiple layer glazing panels. Interlayers of the present invention comprise a thermoplastic polymer, a plasticizer, a tungsten oxide agent, and a stabilizing agent that prevents the degradation of the tungsten oxide agent. Interlayers incorporating such components have improved ultraviolet light blocking character, and also maintain optical quality over time.

The present invention provides an implant system of facilitated use and installation which comprise an implant and a prosthesis support and a method of installation thereof. The prosthesis support disclosed herein includes an abutment and a collar member. Prior art implant systems are mostly made of metallic parts which are assembled with a screw and are shaped to receive a tooth prosthesis. The design of the abutment allows it to be made from highly filled composite materials being of a better optical quality and being easily machinable and further allows its installation without the use of a screwing member. The design of the collar member allows minimization of bacteria growth and tartar formation. The optimization of the implant system proposed herein may reduce stress to the jaw bone and therefore minimize the risk of injury for the patient.

A self-adjusting data transmitter driver can be used for transmission of analog or digital data signal over any suitable communication channel, such as, for example, optical, electrical, wireless and satellite. The optical transmitter driver may be used to drive a single laser as well as an array of lasers. An optical transmitter driver including a laser diode driver can be used to provide modulation and bias currents to drive a laser diode in an optical communication system. A high speed photodiode is used to monitor high frequency characteristics of the optical data signal while one or more photodiodes are used to detect source parameters of the optical data signal. To compute the feedback parameters, parameters including BER, data-eye, discrete optical data integrity parameters and discrete optical parameters are determined using the feedback detectors. The feedback parameters are used to adjust the optical quality of the laser output towards optimization.

This invention discloses methods for generating one or both of an ophthalmic lens precursor with at least a portion of one surface free-formed from a Reactive Mixture. In some embodiments, an ophthalmic lens precursor is formed on a substrate with an arcuate optical quality surface via a source of actinic radiation controllable to cure a definable portion of a volume of Reactive Mixture.

Laminated automotive glazing including plastic layers and glass having an obscuration area produced by printing on the plastic layers of the laminate rather than printing and firing a black enamel frit onto the glass. This results in an obscuration having superior optical quality, higher strength and a lower probability of breakage as compared to a black enamel frit obscuration.

The invention discloses a narrow frame display panel. The narrow frame display panel comprises an array substrate, a color film substrate, a liquid crystal filled between the color film substrate andthe array substrate, a flexible printed circuit board and a driving chip. The side where the array substrate is positioned is a light-emitting surface; one end of the array substrate is a binding end;one end of the flexible printed circuit board is bound on the surface, facing the color film substrate, of the binding end; the driving chip is bound at the other end of the flexible printed circuitboard; after the flexible printed circuit board is bent back to the light-emitting surface, the flexible printed circuit board is arranged opposite to the color film substrate; the driving chip is positioned on one surface, deviating from the color film substrate, on the flexible printed circuit board. The invention also discloses a display device. By binding one end of the flexible printed circuit board on the surface, facing the color film substrate, of the binding end and binding the other end of the flexible printed circuit board with the driving chip, the width of the frame can be reduced; the driving chip is far from a reflector plate of a backlight module, so that the optical quality is ensured and the thickness of the display device cannot be increased; meanwhile, a black shieldinglayer on the outer surface of the array substrate also can prevent specular reflection.

A system for the inspection of the optical quality of a part, object or product having a portion comprising transparent material such as ophthalmologic lenses, protective eyewear, visors, eyewear shield and the like is provided. A liquid crystal display (LCD) screen emits variable patterns of light through the transparent part under inspection to a charged coupled device (CCD) camera that captures the image and transmits the image data to an image processing module. The processed image data are then transmitted to an analysis module which then generally measures the dimensions of the part, the transparency, the colour and the optical strength. The analysis module also advantageously detects and measures the presence of dots, stains, scratches, optical distortions, fingerprints, cloudiness and other optical artefacts and/or defects in the transparent material. Accordingly, the patterns emitted by the LCD screen are designed to measure the optical specifications and highlight potential optical defects.

A method of determining optical quality of a transparent product includes passing a first gray-scale pattern through the material; obtaining a first image of the first pattern with an image pickup device after the first pattern has passed through the material; and determining optical quality of the material based on data obtained from the first image. An apparatus for determining optical quality of such a material is also disclosed.