摘要:
A head-up display system for a vehicle includes a projector and a combiner in which a multilayer film is provided to reflect a display from the projector to the driver, the display being superimposed on the image of the vehicle surroundings that the driver receives through the vehicle windscreen. The display comprises light within a single restricted frequency band, or a plurality of spaced restricted frequency bands only. The frequency bands are selected to ensure that essential visual information which would normally be conveyed to the driver through the windscreen is not blocked by the multilayer film.
摘要:
An optical system is disclosed that includes a housing that has an interior, a reflective interior surface, and a first opening. The optical system further includes a spatial light modulator that is disposed proximate the first opening and a light source that is disposed within the interior of the housing. The spatial light modulator modulates the light that is emitted by the light source to form image rays. The optical system further includes a first light redirecting film that is disposed proximate the first opening between the spatial light modulator and the light source. The first light redirecting film recycles at least a portion of the light that is emitted by the light source. The optical system further includes an optically absorptive film that is disposed proximate the first opening between the spatial light modulator and the viewing position. The optically absorptive film receives the image rays from the spatial light modulator and displays the received image rays to the viewing position.
摘要:
An optical system is disclosed that includes a housing that has an interior, a reflective interior surface, and a first opening. The optical system further includes a spatial light modulator that is disposed proximate the first opening and a light source that is disposed within the interior of the housing. The spatial light modulator modulates the light that is emitted by the light source to form image rays. The optical system further includes a first light redirecting film that is disposed proximate the first opening between the spatial light modulator and the light source. The first light redirecting film recycles at least a portion of the light that is emitted by the light source. The optical system further includes an optically absorptive film that is disposed proximate the first opening between the spatial light modulator and the viewing position. The optically absorptive film receives the image rays from the spatial light modulator and displays the received image rays to the viewing position.
摘要:
The invention refers to a method of manufacturing an optical recording medium comprising a first member having a first substrate, a first information storing layer, a first exposed surface and a first inner surface, a second member having a second substrate, a second exposed surface, a second inner surface and optionally a second information storing layer, and an optionally transparent pressure-sensitive adhesive layer interposed between the first inner surface and the second inner surface, said method comprising 1. attaching the pressure-sensitive adhesive layer to the inner surface of one of the members and 2. adhering the inner surface of the other member to the exposed surface of the adhesive layer, wherein the size of any bubbles formed during above steps 1. and/or 2. at the interface between the first and/or second inner surface, respectively, and the pressure-sensitive adhesive layer and/or the disappearance rate of the bubbles are controlled so that the bubbles are removed in less than 30 minutes.
摘要:
The present invention relates to a scratch-resistant micro- and/or nanostructured surface comprising a plurality of micro-scale and/or nano-scale surface elements, said surface being essentially unchanged when being subjected to 10 rubbing cycles according to A.A.T.C.C. test method 8-1972 using a cotton cloth and a total stamp weight of 300 g, and comprising a polymeric material having 1) an elongation at break of at least 10%, 2) an irreversible relative plastic deformation (permanent set) of less than 2% and a 3) a tensile strength of at least 5 MPa. The present invention furthermore relates to a hydrophobic micro- and/or nanostructured surface comprising a plurality of micro-scale and/or nano-scale surface elements and having a static contact angle against water of at least 90, said surface comprising a polymeric material having 1) an elongation at break of at least 10%, 2) an irreversible relative plastic deformation (permanent set) of less than 2% and a 3) a tensile strength of at least 5 MPa.
摘要:
The present invention relates to a scratch-resistant micro- and/or nanostructured surface comprising a plurality of micro-scale and/or nano-scale surface elements, said surface being essentially unchanged when being subjected to 10 rubbing cycles according to A.A.T.C.C. test method 8-1972 using a cotton cloth and a total stamp weight of 300 g, and comprising a polymeric material having 1) an elongation at break of at least 10%, 2) an irreversible relative plastic deformation (permanent set) of less than 2% and a 3) a tensile strength of at least 5 MPa. The present invention furthermore relates to a hydrophobic micro- and/or nanostructured surface comprising a plurality of micro-scale and/or nano-scale surface elements and having a static contact angle against water of at least 90, said surface comprising a polymeric material having 1) an elongation at break of at least 10%, 2) an irreversible relative plastic deformation (permanent set) of less than 2% and a 3) a tensile strength of at least 5 MPa.
摘要:
A continuous self-metered process of forming a multilayer film comprising at least two superimposed polymer layers comprising the steps of: providing a substrate; providing two or more coating knives which are offset, independently from each other, from said substrate to form a gap normal to the surface of the substrate; moving the substrate relative to the coating knives in a downstream direction, providing curable liquid precursors of the polymers to the upstream side of the coating knives thereby coating the two or more precursors through the respective gaps as superimposed layers onto the substrate; optionally providing one or more solid films and applying these essentially simultaneously with the formation of the adjacent lower polymer layer, and curing the precursor of the multilayer film thus obtained; wherein a lower layer of a curable liquid precursor is covered by an adjacent upper layer of a curable liquid precursor or a film, respectively, essentially without exposing said lower layer of a curable liquid precursor.
摘要:
The invention relates to a pressure-sensitive adhesive tape with improved room temperature handleability comprising an adhesive layer with at least one exposed surface and optionally a backing, wherein the pressure-sensitive adhesive layer comprises an epoxy/polyester based pressure sensitive adhesive which is crosslinkable upon exposure to actinic or e-beam irradiation and optionally heat, and comprises (i) 30-80% by weight of a polyester component comprising one or more amorphous polyesters compounds, (ii) 20-70% by weight of an epoxy component comprising one or more epoxy resins and/or monomers, (iii) 0-50% by weight of a hydroxyl-functional component containing one or more hydroxyl-containing compounds having a hydroxyl functionality of at least 1, and (iv) an effective amount of a photoinitiator component for crosslinking the pressure-sensitive adhesive, whereby the weight percentages refer to the total mass of components (i)-(iv) and add up to 100 wt. %, and which exhibits a holding power of at least 5 min.
摘要:
Provided are reactive compositions for making a polyurethane-based rain-erosion protective coating for rotor blades, the reactive composition comprising an isocyanate-reactive component and an isocyanate-functional component and wherein the isocyanate-reactive component comprises a first component i) being a short chain hydroxyl-functional compound having two terminal (α-ω) hydroxyl groups, a molecular weight of less than 250 g/mole and containing at least 2 carbon atoms and a second component ii) comprising a high molecular weight hydroxyl-functional compound having two terminal (α-ω) hydroxyl groups and a molecular weight of at least 250 g/mol and comprising one or more units selected from oxyalkylene units and polyoxyalkylene units and wherein the isocyanate-functional component is an isocyanate prepolymer of the general formula NCO—Z—NCO, wherein Z is a linking group comprising at least two urethane (—NH—CO—O—) units and additionally one or more units selected from alkylenes, oxyalkylenes, polyoxyalkylenes, alkylene esters, oxyalkylene esters, polyoxyalkylene esters and combinations thereof. Also provided are protective coatings obtained from the reactive compositions and methods of applying the coatings to articles.
摘要:
Provided are reactive compositions for making a polyurethane-based rain-erosion protective coating for rotor blades, the reactive composition comprising an isocyanate-reactive component and an isocyanate-functional component and wherein the isocyanate-reactive component comprises a first component i) being a short chain hydroxyl-functional compound having two terminal (α-ω) hydroxyl groups, a molecular weight of less than 250 g/mole and containing at least 2 carbon atoms and a second component ii) comprising a high molecular weight hydroxyl-functional compound having two terminal (α-ω) hydroxyl groups and a molecular weight of at least 250 g/mol and comprising one or more units selected from oxyalkylene units and polyoxyalkylene units and wherein the isocyanate-functional component is an isocyanate prepolymer of the general formula NCO—Z—NCO, wherein Z is a linking group comprising at least two urethane (—NH—CO—O—) units and additionally one or more units selected from alkylenes, oxyalkylenes, polyoxyalkylenes, alkylene esters, oxyalkylene esters, polyoxyalkylene esters and combinations thereof. Also provided are protective coatings obtained from the reactive compositions and methods of applying the coatings to articles.