WO2003024621A1 - Substrate mounting for organic, dielectric, optical film - Google Patents
Substrate mounting for organic, dielectric, optical film Download PDFInfo
- Publication number
- WO2003024621A1 WO2003024621A1 PCT/US2002/029287 US0229287W WO03024621A1 WO 2003024621 A1 WO2003024621 A1 WO 2003024621A1 US 0229287 W US0229287 W US 0229287W WO 03024621 A1 WO03024621 A1 WO 03024621A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- reflection coating
- metal
- film
- dielectric
- cap
- Prior art date
Links
Classifications
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/20—Filters
- G02B5/28—Interference filters
- G02B5/285—Interference filters comprising deposited thin solid films
- G02B5/287—Interference filters comprising deposited thin solid films comprising at least one layer of organic material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
- B05D5/06—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain multicolour or other optical effects
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14311—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles using means for bonding the coating to the articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14778—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles the article consisting of a material with particular properties, e.g. porous, brittle
- B29C45/14811—Multilayered articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/07—Flat, e.g. panels
- B29C48/08—Flat, e.g. panels flexible, e.g. films
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- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/15—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor incorporating preformed parts or layers, e.g. extrusion moulding around inserts
- B29C48/154—Coating solid articles, i.e. non-hollow articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
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- B29C66/112—Single lapped joints
- B29C66/1122—Single lap to lap joints, i.e. overlap joints
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- B29C66/341—Measures for intermixing the material of the joint interlayer
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- B29C66/545—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles one hollow-preform being placed inside the other
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- B29C66/731—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the intensive physical properties of the material of the parts to be joined
- B29C66/7311—Thermal properties
- B29C66/73115—Melting point
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- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
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- B29C66/733—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the optical properties of the material of the parts to be joined, e.g. fluorescence, phosphorescence
- B29C66/7334—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the optical properties of the material of the parts to be joined, e.g. fluorescence, phosphorescence at least one of the parts to be joined being glossy or matt, reflective or refractive
- B29C66/73343—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the optical properties of the material of the parts to be joined, e.g. fluorescence, phosphorescence at least one of the parts to be joined being glossy or matt, reflective or refractive at least one of the parts to be joined being matt or refractive
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- B29C45/14311—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles using means for bonding the coating to the articles
- B29C2045/14319—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles using means for bonding the coating to the articles bonding by a fusion bond
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- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92609—Dimensions
- B29C2948/92647—Thickness
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- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
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- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
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- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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- B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
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- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/25—Solid
- B29K2105/253—Preform
- B29K2105/256—Sheets, plates, blanks or films
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
- B29K2995/0003—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds having particular electrical or magnetic properties, e.g. piezoelectric
- B29K2995/0006—Dielectric
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
- B29K2995/0018—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds having particular optical properties, e.g. fluorescent or phosphorescent
- B29K2995/0026—Transparent
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2011/00—Optical elements, e.g. lenses, prisms
- B29L2011/0066—Optical filters
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24942—Structurally defined web or sheet [e.g., overall dimension, etc.] including components having same physical characteristic in differing degree
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31678—Of metal
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31678—Of metal
- Y10T428/31681—Next to polyester, polyamide or polyimide [e.g., alkyd, glue, or nylon, etc.]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31678—Of metal
- Y10T428/31692—Next to addition polymer from unsaturated monomers
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31786—Of polyester [e.g., alkyd, etc.]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31786—Of polyester [e.g., alkyd, etc.]
- Y10T428/31797—Next to addition polymer from unsaturated monomers
Definitions
- the invention relates to methods for mounting thermoplastic substrates to organic, dielectric films and the resulting optical filters. More particularly, it relates to methodologies for fusing, through a variety of industrial processes, thermoplastic substrates to dielectric films without delamination while improving optical transmission at the film's refractive boundary.
- Dielectric stacks have previously been constructed by sputtering layers of inorganic (metal) oxides onto polymeric substrates.
- the layers alternate between high and low indices of refraction, whereby incoming light encounters a partial mirror at each new layer.
- quarter wave stacks certain wavelengths can be destructively interfered via Bragg diffraction.
- thermoplastics which can be effectively utilized in the film fusing methods. It is another object of the present invention to describe criteria for thermally fusing the film to a thermoplastic substrate based on the chosen manufacturing method. It is a further object of the present invention to describe the optical properties of the thermally fused region.
- thermoplastic material to an outer surface layer of an organic, dielectric, optical film.
- a dielectric film is selected that includes (i) repeating optical layers of at least two polymers having different refractive indexes from each other, (ii) an exterior film surface, (iii) a refractive boundary along the exterior film surface, and (iv) a delamination threshold based on total thermal energy delivered to the film.
- a thermoplastic material which is miscible with the exterior film surface is selected.
- the thermoplastic material is fused to the refractive boundary with thermal energy below the delamination threshold to form a polydisperse region having a higher optical transmission than the refractive boundary.
- the molecular weight of the thermoplastic is selected so that the melting temperature range of the thermoplastic overlaps the melting temperature range of the exterior film surface.
- Fusing may be accomplished by film insert molding, where the thermoplastic is simultaneously molded into a substrate and fused to the film's refractive boundary.
- the molten resin is held above the resin's glass transition temperature in the b arrel and experiences a temperature drop as it enters the cavity to below the film's thermal delamination threshold.
- Fusing may also be accomplished via laser welding where a radiation absorbing material is placed near one of the refractive boundaries and irradiating the absorbing material through the thermoplastic or the film. Fusing may further be accomplished by extruding the thermoplastic into a substrate and bringing the film into contact with the substrate as the substrate's temperature drops below the thermal delamination threshold.
- optical filters manufactured according to the methods of the invention may have incorporated therein, organic absorber dyes, such as a UN absorbing dye, a visible light absorbing dye, a cosmetic dye, a laser absorbing dye, a near infrared absorbing dye, and infrared absorbing dye and combinations thereof.
- organic absorber dyes such as a UN absorbing dye, a visible light absorbing dye, a cosmetic dye, a laser absorbing dye, a near infrared absorbing dye, and infrared absorbing dye and combinations thereof.
- Add-on filters in the form of hardcoat layers, anti-reflection layers, holograms, metal dielectric stacks and combinations of these may be combined with the thermoplastic-film construct.
- FIG. 1 is a cross-sectional view of an organic, optical, dielectric film layered on a thermoplastic substrate with air and adhesive disposed therebetween;
- FIG. 2 is a cross-sectional view of an organic, optical, dielectric film fused to a thermoplastic substrate pursuant to the method, and resulting product, according to the invention
- FIG. 3A is an exploded cross-sectional view of a lens formed according to the invention provided with a hardcoat layer and an anti-reflective layer
- FIG. 3B is an exploded cross-sectional view of a lens formed according to the invention provided with a hologram and a protective cap
- FIG. 3 C is an exploded cross-sectional view of a lens formed according to the invention provided with an inorganic dielectric stack and a protective cap;
- FIG. 3D is an exploded cross-sectional view of a lens formed according to the invention provided with a hologram, an inorganic dielectric stack and a protective cap.
- a pair of 204-layer polarizers made from alternating layers of PEN and coPEN are laminated together. More specifically, the outer coPEN layer on one polarizer is laminated to the outer coPEN layer of the other polarizer.
- an optical adhesive is used: wherein the only important property of the adhesive is that it possesses a refractive index as close to the coPEN as possible.
- a relatively thick skin layer is formed on the exterior surface of the film.
- the skin layer would be formed from PEN or coPEN.
- the skin layer is made from one of the polymers used in the film. As can be seen in FIG.
- a film 20 made from alternating layers 22, 24 of PEN and coPEN (or PEN and PMMA) to a substrate 40 having different mechanical, chemical or optical properties.
- the numbers 22 and 24 may also represent any pair of polymers used in organic, optical, dielectric films, hi layering the film onto the substrate, an intermediate medium 30 occupies any spaces or gaps therebetween.
- the intermediate medium 30 may be adjacent one of the alternating layers 22 or 24, or it may be adjacent a skin 26 made from one of the polymers of the film and made several times thicker than the layers, for example, h the simplest case, the intermediate medium 30 consists of air 32.
- These layered constructs possess two refractive boundaries: the first refractive boundary is disposed at the film exterior or skin exterior 26a, where the film or skin meets the air 32 or adhesive 34; and the second ref active boundary is disposed at the substrate exterior 40a, where the air 32 or adhesive 34 meets the substrate.
- These refractive boundaries 26a and 40a act as partial mirrors reflecting light at all wavelengths and reducing the overall transmission of the resulting filter.
- the delamination threshold is a function of total heat energy delivered to the film in a manner where the heat energy penetrates into the film layers and builds faster than it can be laterally dissipated.
- Thermoplastic polymers are typically graded by molecular weight and initially the selection process begins here. While the melting temperature range of a polymer correlates approximately with the molecular weight, the melt flow of the polymer correlates reciprocally with the molecular weight. The melt flow determines the ease with which the polymer can be thermoformed via mold, rollers, extrusion or other mechanical former. In addition, it determines the ease with which the polymer can be delivered to the film surface.
- thermoforming determines the total heat energy which is delivered to the film. Applicant's discovered that the total energy delivered to the lower melting temperature range layer determines if delamination occurs, and hereby defines such phenomenon as the delamination threshold. In other words, any successful thermoforming process must limit the total heat energy delivered into the stack to below the delamination threshold.
- Such polydisperse layer is characterized by a polymeric mix of the materials via polymer melting or polymer interfusing creating a continuous transition there between without intermediate mediums such as air or adhesive.
- the ensembles according to the invention replaces those intermediate mediums with gradual transitions thereby eliminating any finite optical boundaries.
- the polydisperse layer 42 provides a smooth and continuous transition from the outer film layer, i.e. skin 26, to the polymer substrate 40, thereby eliminating the two original refractive boundaries.
- the optical transmission of the film was not lowered by the addition o f the polymer into the optical path, even though the B eer-Lambert Law predicts that the combined transmission of two filters will be the product of their individual transmissions.
- Polycarbonate was maintained in the barrel at 545 to 550 degrees F., well above the film's delamination threshold.
- the polycarbonate was injected into the molding cavity into which the film was previously insert against a 170 degree F. mold surface. As the polycarbonate was injected into the cavity it experienced a temperature drop. The portion of the mold adjacent the gate receives the greatest amount of total heat energy and caused delamination of the film. However, portions of the mold spaced from the gate had the polycarbonate tenaciously fused or bonded to the film, and not at all prone to spontaneous or induced exfoliation. Such bonding strengths were confirmed using standardized mechanical tests.
- Table 1 Transmission Values (in per cent, %) at 50nm Increments.
- column 50 lists the wavelengths across the visible spectrum at which the transmission values were obtained. Note that all values in the columns 52 through 62 are percent (%) transmission values.
- Column 52 indicates the transmissions at the listed wavelengths, and at the bottom of the column, average transmission of a Bayer brand water white (clear) polycarbonate substrate.
- Column 54 indicates the transmissions, and average transmission, of a 3M brand organic, optical, dielectric film.
- Column 56 indicates the Beer-Lambert expected transmission of layering the substrate on the film.
- Column 58 indicates the actual transmissions of the layered ensemble. This represents the light wave of FIG.
- the photopic and scotopic transmissions are equal to the individual transmissions (T) integrated over all visible wavelengths ( ⁇ ) from 380nm to 780nm weighted by the Photopic or Scotopic Sensitivity Function values for that wavelength, namely P ⁇ or S ⁇ further weighted by the reference ffiuminant curve.
- Illuminant curve C (Ic ) is employed as the spectrum which best simulates daylight over the visible range.
- the photopic or scotopic value is an integral of three products T, P and Ic, over the integral of two products, P and Ic.
- the denominator is unity since the P and Ic curves represent the normalized 100% reception of available light.
- the formula for calculating the photopic is as follows:
- the water white polycarbonate of column 52 had a % P of 87.3 and a % S of 86.7.
- the film of column 54 had a % P of 86.7 and a % S of 86.2.
- the layered ensemble had a % P of 75.7 and a % S of 74.4. These lowered % P and S values correlate to the transmission loss reflected in the expected and actual wavelength-based transmission data of columns 56 and 58.
- the molded ensemble according to the invention had a % P of 84.9 and a % S of 82.3. These values represent a 12.2 and a 10.6 % increase, respectively, over the layered values.
- FIGS. 3A, 3B, 3C and 3D all show a plastic and film ensemble formed according to the invention and illustrated in FIG. 2.
- the completed plastic and film ensemble is referred to here as plastic/film 50 and includes the plastic side 50a and the film side 50b.
- the additional layers, coatings and optical filters shown here are exemplary of optical devices that could be combined with the plastic and film ensemble according to the invention.
- the drawings illustrate certain types and configurations, although it should be understood that additional types and configurations may also be utilized, as will be described more completely below.
- FIG. 3A shows a hardcoat or hardcoat layer 60 placed over the film side 50b of the plastic/film 50.
- Hardcoat 60 provides a layer of protection for the film, for example, scratch resistance.
- Hardcoat 60 also provides a surface to receive an anti-reflection layer or coating 62. If hardcoat 60 is applied via a dip coating process, then plastic side 50a will be provided with a hardcoat layer also.
- An anti-reflection layer may also be provided on the hardcoat layer on plastic side 50a of plastic/film 50.
- an anti-reflection layer means a sputtered metal halide layer, a sputtered metal calcide layer, a rugate, a dielectric stack, or combinations thereof.
- the metal halide layers include metals combined with Fluorine, Chlorine, Bromine or Iodine.
- Metal calcide layers include metals combined with Oxygen, Sulfur, Selenium or Tellurium.
- Rugates include metallic and other monolithic constructs having varying indices of refraction throughout.
- Dielectric stacks include metallic and other layered constructs having varying indices of refraction from layer to layer.
- FIG. 3B shows a hologram 64 disposed on the film side of plastic/film 50.
- a protective optical cap 68 is disposed on hologram 64.
- An anti-reflection coating may be provided on plastic side 50a and/or cap exterior 68a.
- FIG. 3C shows a metal oxide dielectric stack 66 sputtered onto the interior of cap 68. In the event that optically curved surfaces are present, it is preferable that stack 66 be sputtered onto a concave surface, as shown.
- the interference spectrum of metal oxide stack 66 is intended to complement the interference spectrum of the organic dielectric film incorporated into plastic/film 50.
- An anti-reflection coating may be provided on plastic side 50a and/or cap exterior 68a.
- FIG. 3D shows a hologram 64 disposed on the film side of plastic/film 50. There is also shown a metal oxide dielectric stack 66 sputtered onto the interior of cap 68. An anti-reflection coating may be provided on plastic side 50a and/or cap exterior 68a.
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
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KR1020047003875A KR100609462B1 (en) | 2001-09-19 | 2002-09-16 | Substrate mounting for organic, dielectric, optical film |
CA 2460061 CA2460061C (en) | 2001-09-19 | 2002-09-16 | Substrate mounting for organic, dielectric, optical film |
JP2003528310A JP2005502924A (en) | 2001-09-19 | 2002-09-16 | Substrate mounting for organic dielectric optical films |
AU2002336537A AU2002336537B2 (en) | 2001-09-19 | 2002-09-16 | Substrate mounting for organic, dielectric, optical film |
EP02773392A EP1436094A4 (en) | 2001-09-19 | 2002-09-16 | Substrate mounting for organic, dielectric, optical film |
Applications Claiming Priority (2)
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US09/955,903 US6676859B2 (en) | 2001-09-19 | 2001-09-19 | Substrate mounting for organic, dielectric, optical film |
US09/955,903 | 2001-09-19 |
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WO2003024621A1 true WO2003024621A1 (en) | 2003-03-27 |
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EP (1) | EP1436094A4 (en) |
JP (1) | JP2005502924A (en) |
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2001
- 2001-09-19 US US09/955,903 patent/US6676859B2/en not_active Expired - Fee Related
-
2002
- 2002-09-16 AU AU2002336537A patent/AU2002336537B2/en not_active Ceased
- 2002-09-16 EP EP02773392A patent/EP1436094A4/en not_active Withdrawn
- 2002-09-16 CA CA 2460061 patent/CA2460061C/en not_active Expired - Fee Related
- 2002-09-16 KR KR1020047003875A patent/KR100609462B1/en not_active IP Right Cessation
- 2002-09-16 WO PCT/US2002/029287 patent/WO2003024621A1/en active IP Right Grant
- 2002-09-16 JP JP2003528310A patent/JP2005502924A/en active Pending
-
2003
- 2003-12-12 US US10/734,872 patent/US6951681B2/en not_active Expired - Fee Related
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Also Published As
Publication number | Publication date |
---|---|
CA2460061A1 (en) | 2003-03-27 |
KR100609462B1 (en) | 2006-08-08 |
CA2460061C (en) | 2008-04-29 |
JP2005502924A (en) | 2005-01-27 |
AU2002336537B2 (en) | 2007-03-29 |
US6951681B2 (en) | 2005-10-04 |
KR20040045442A (en) | 2004-06-01 |
EP1436094A1 (en) | 2004-07-14 |
EP1436094A4 (en) | 2009-08-19 |
US20030059616A1 (en) | 2003-03-27 |
US6676859B2 (en) | 2004-01-13 |
US20040183219A1 (en) | 2004-09-23 |
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