Abstract:
An optical fiber is colored to provide a striped pattern while maintaining a substantially uniform diameter of the fiber. In one embodiment, a coating of a first curable material having a base color is applied to an optical fiber core section using a coloring die. One or more stripes of a second curable material are applied using the die to the coating before the coating is fully cured. The stripe has a stripe color different from the base color and is formed in the coating such that the diameter of the fiber remains substantially uniform. In another embodiment, a tandem coloring system is used in which the coating is partially cured and one or more striping nozzles apply stripe(s) to the partially cured coating. In a further embodiment, the base color coating is applied and cured leaving one or more gaps. One or more stripes are applied in the gap(s) and cured to fully cover the fiber with a substantially uniform diameter.
Abstract:
The present invention relates to optical elements comprising fluorochemical surface treatments. The invention further relates to articles such as retroreflective sheetings, pavement markings and beaded projection screens comprising a binder and the surface treated optical elements. The surface treatment comprises at least one fluoropolymer selected from a) fluoropolymers comprising a fluorinated hydrocarbon backbone and side chains comprising at least one of fluoroalkyl, fluoroether alkyl, fluoroalkoxy and mixtures thereof; and b) fluoropolymers comprising a hydrocarbon backbone and side chains comprising at least one of fluoroether alkyl, fluoroalkoxy and mixtures thereof.
Abstract:
The present invention provides an improved method and apparatus for curing coatings on optical fibers, without creating additional heat and compromising the manufacturing speed of optical fibers. The present invention uses at least one ultrasonic transducer coupled to a component of the optical fiber draw tower, such as the coating die, curing stage device or sheath, to emit ultrasound to the coating of the fiber. The use of ultrasound with current coating cure techniques, such as UV radiation curing, aids in accelerating the coating cure process through the effects of sonolysis, allowing an increase in current manufacturing speeds of optical fibers.
Abstract:
The developer of the present invention is used in a method where a water-soluble resin coating layer is applied on a resist pattern formed by the conventional method, and the coating layer is crosslinked by an acid supplied from the resist, and the uncrosslinked area in the coating layer is dissolved and removed with a developer to thicken the resist pattern. This developer comprises an aqueous solution containing at least one surfactant selected from an N-acylsarcosinate, an N-acyl-N-methylalaninate, an N-acyltaurinate, an N-acyl-N-methyltaurinate, a fatty acid alkylol amide, and a fatty acid alkylol amide polyoxyethylene adduct.
Abstract:
A liquid crystal layer is formed on an alignment substrate 13 by the use of a photo-curing chiral nematic liquid crystal having cholesteric regularity, or the like, and liquid crystalline molecules in the liquid crystal layer are aligned by the alignment-regulating action of the alignment substrate 13. A predetermined amount of radiation 20 is applied to the liquid crystal layer formed on the alignment substrate 13 to three-dimensionally cross-link and cure the liquid crystal layer, thereby forming a cholesteric layer 12 in the semi-cured state. Thereafter, the semi-cured cholesteric layer 12 formed on the alignment substrate 13 is brought into contact with an organic solvent 21 under the specific conditions. There is thus finally obtained an optical element 10 comprising the cholesteric layer 12 formed on the alignment substrate 13.
Abstract:
A method of coating one or more surfaces of a micromechanical device. The coating is applied as a material dissolved in CO2. The CO2 is used a carrier solvent, with the coating being applied as a spray or in liquid form, to form a film on the surface. The CO2 may be used in supercritical form to dissolve the material.
Abstract:
The aim of the invention is to provide a method for making appropriate for trimming a glass comprising a hydrophobic and/or oil-repellent surface coating. According to the invention, it is characterized in that at the surface of said glass a temporary protective layer is coated, imparting to the glass a surface energy at least equal to 15 mJ/m2.
Abstract translation:本发明的目的是提供一种适于修整包含疏水和/或拒油表面涂层的玻璃的方法。 根据本发明,其特征在于,在所述玻璃的表面上涂覆有临时保护层,赋予玻璃至少等于15mJ / m 2的表面能。
Abstract:
The present invention provides a method for treating a contact lens to provide an optically clear, hydrophilic coating upon the surface of a silicone hydrogel lens by subjecting the surface of the lens to a process comprising plasma treatment, hydration, and heat sterilization that is controlled to result in a silicate-containing film having a mosaic pattern of projecting plates surrounded by fissures when viewing a 50null50 micron square AFM image, wherein the peak-to-valley distances of the fissures are on average between about 100 and 500 angstrnullms and the plate coverage is on average between about 40% to 99%.
Abstract:
A retroreflective coating system and a method of providing the coating system on a substrate are disclosed. The method includes applying a color-providing composition, such as a pigmented basecoat composition, and applying a clearcoat composition. After application and cure, the color-providing composition forms a color-providing film layer, and the clearcoat composition forms a clearcoat film layer. The color-providing composition and the clearcoat composition are cross-linkable. Either one, or both, of the color-providing composition and the clearcoat composition include retroreflective microspheres. The color-providing composition is applied to the substrate to form an uncured film layer of the color-providing composition. Next, the clearcoat composition is applied wet-on-wet to the uncured film layer of the color-providing composition such that an uncured film layer of the clearcoat composition is formed on the uncured film layer of the color-providing composition.
Abstract:
The present invention provides a windowpane for a vehicle that has a low-reflectance film in which the reflection of obliquely incident light can be suppressed and that is provided with a combiner for a head-up display combiner. The windowpane includes a glass plate and a low-reflectance film formed on a surface of the glass plate. The low-reflectance film includes a first layer on the glass plate and a second layer on the first layer, and the first layer has a refractive index of 1.75 to 2.40 and a film thickness of 90 nm to 130 nm, and the second layer has a refractive index of 1.4 to 1.47 and a film thickness of 80 nm to 110 nm. The second layer is prevented from being formed in a predetermined region and thereby the first layer in the predetermined region is exposed to serve as a reflection enhancing film and to allow the first layer in said predetermined region to be used as the head-up display combiner.