A removable lens stack includes a base layer and one or more removable lens layers. The base layer may include a substrate and moth eye coatings on first and second sides of the substrate. A first removable lens layer may include a substrate and an acrylic or fluoropolymer coating on a first side of the substrate and may be stacked on top of the base layer such that the second side of the substrate faces the first side of the substrate of the base layer. A second removable lens layer may include a substrate and an acrylic or fluoropolymer coating on a first side of the substrate and may be stacked on top of the first removable lens layer such that the second side of the substrate faces the first side of the substrate of the first removable lens layer. The acrylic or fluoropolymer coating may comprise a hard coat.
G02B 3/02 - Simple or compound lenses with non-spherical faces
G02B 1/04 - Optical elements characterised by the material of which they are madeOptical coatings for optical elements made of organic materials, e.g. plastics
A removable lens stack includes a base layer and one or more removable lens layers. The base layer may include a substrate and moth eye coatings on first and second sides of the substrate. A first removable lens layer may include a substrate and an acrylic or fluoropolymer coating on a first side of the substrate and may be stacked on top of the base layer such that the second side of the substrate faces the first side of the substrate of the base layer. A second removable lens layer may include a substrate and an acrylic or fluoropolymer coating on a first side of the substrate and may be stacked on top of the first removable lens layer such that the second side of the substrate faces the first side of the substrate of the first removable lens layer. The acrylic or fluoropolymer coating may comprise a hard coat.
A removable lens stack includes a base layer and one or more removable lens layers. The base layer may include a substrate and moth eye coatings on first and second sides of the substrate. A first removable lens layer may include a substrate and an acrylic or fluoropolymer coating on a first side of the substrate and may be stacked on top of the base layer such that the second side of the substrate faces the first side of the substrate of the base layer. A second removable lens layer may include a substrate and an acrylic or fluoropolymer coating on a first side of the substrate and may be stacked on top of the first removable lens layer such that the second side of the substrate faces the first side of the substrate of the first removable lens layer. The acrylic or fluoropolymer coating may comprise a hard coat.
G02B 3/02 - Simple or compound lenses with non-spherical faces
G02B 1/04 - Optical elements characterised by the material of which they are madeOptical coatings for optical elements made of organic materials, e.g. plastics
A removable lens stack comprises a base layer including a substrate and an antistatic coating comprising quaternary ammonium cations on a first side of the substrate and one or more removable lens layers stacked on top of the base layer. Each removable lens layer may include a substrate, an antistatic coating comprising quaternary ammonium cations on a first side of the substrate, and an adhesive on a second side of the substrate opposite the first side. The one or more removable lens layers may be stacked on top of the base layer such that the second side of the substrate of each removable lens layer faces the first side of the substrate of an immediately preceding layer. Refractive indices of the substrate of the base layer, the substrate of each removable lens layer, and the adhesive of each removable lens layer may be matched (e.g., to within 0.2).
G02B 1/16 - Optical coatings produced by application to, or surface treatment of, optical elements having an anti-static effect, e.g. electrically conducting coatings
A removable lens stack includes a base layer and one or more removable lens layers. The base layer may include a substrate and moth eye coatings on first and second sides of the substrate. A first removable lens layer may include a substrate and an acrylic or fluoropolymer coating on a first side of the substrate and may be stacked on top of the base layer such that the second side of the substrate faces the first side of the substrate of the base layer. A second removable lens layer may include a substrate and an acrylic or fluoropolymer coating on a first side of the substrate and may be stacked on top of the first removable lens layer such that the second side of the substrate faces the first side of the substrate of the first removable lens layer. The acrylic or fluoropolymer coating may comprise a hard coat.
G02B 3/02 - Simple or compound lenses with non-spherical faces
G02B 1/04 - Optical elements characterised by the material of which they are madeOptical coatings for optical elements made of organic materials, e.g. plastics
An eye protector includes a lens configured to protect the wearer from projectiles, and an optically clear stack attached to the lens. The stack can have one or more removable layers. The eye protector also includes an optically clear dry mount adhesive layer attaching the stack to the lens. The dry mount adhesive may be self-wetting to attach the stack to the lens so that air between the stack and the lens can be removed after the stack is attached and/or adhered to the lens, for example, by applying pressure across the surface of the stack. The refractive indices of the lens, the dry mount adhesive, and each removable layer are matched to within about 0.2.
B32B 7/06 - Interconnection of layers permitting easy separation
B32B 7/12 - Interconnection of layers using interposed adhesives or interposed materials with bonding properties
B32B 27/08 - Layered products essentially comprising synthetic resin as the main or only constituent of a layer next to another layer of a specific substance of synthetic resin of a different kind
A method of manufacturing a sterile stack of peelable lenses includes coating a first lens (or stack of lenses) with a first adhesive coating, heating the first adhesive coating to initiate curing, exposing the first adhesive coating to ultraviolet light to continue curing, laminating a second lens (or stack of lenses) onto a surface of the first adhesive coating to produce a stack of lenses, coating the second lens with a second adhesive coating, heating the second adhesive coating to initiate curing, exposing the second adhesive coating to ultraviolet light to continue curing, laminating a third lens (or stack of lenses) onto a surface of the second adhesive coating to add the third lens to the stack of lenses, and exposing the stack of lenses to an electron beam to continue curing of the first and second adhesive coatings.
A protective lens stack comprises a base layer including a polyethylene terephthalate (PET) film containing a UV blocking additive and one or more removable lens layers stacked on top of the base layer. Each of the removable lens layers may include a PET film and a first adhesive disposed on a bottom surface of the PET film. Refractive indices of the base layer and the one or more removable lens layers may be matched to within 0.2. Each layer of the protective lens stack, including the base layer and each of the removable lens layer(s), may have less than 0.5% haze. The protective lens stack may be used as a face shield or may be surface mountable using a second adhesive disposed on a bottom surface of the PET film containing the UV blocking additive.
A41D 13/11 - Protective face masks, e.g. for surgical use, or for use in foul atmospheres
G02B 1/04 - Optical elements characterised by the material of which they are madeOptical coatings for optical elements made of organic materials, e.g. plastics
G02B 1/14 - Protective coatings, e.g. hard coatings
A removable lens stack includes a base layer, a first removable lens layer, and a second removable lens layer. The base layer may include a substrate and a moth eye coating. The first removable lens layer may include a substrate, a single or multi-layer interference antireflective coating on a first side of the substrate, and a fluoropolymer coating on a second side of the substrate. The first removable lens layer may be stacked on top of the base layer with the fluoropolymer coating being molded to fit the moth eye coating. The second and any subsequent removable lens layer may include a substrate, a single or multi-layer interference antireflective coating on a first side of the substrate, and an acrylic or polyurethane adhesive on a second side of the substrate. The second removable lens layer may be stacked on top of the first removable lens layer and so on.
G02B 3/02 - Simple or compound lenses with non-spherical faces
G02B 1/04 - Optical elements characterised by the material of which they are madeOptical coatings for optical elements made of organic materials, e.g. plastics
A removable lens stack includes a base layer, a first removable lens layer, and a second removable lens layer. The base layer may include a substrate and a moth eye coating. The first removable lens layer may include a substrate, a single or multi-layer interference antireflective coating on a first side of the substrate, and a fluoropolymer coating on a second side of the substrate. The first removable lens layer may be stacked on top of the base layer with the fluoropolymer coating being molded to fit the moth eye coating. The second and any subsequent removable lens layer may include a substrate, a single or multi-layer interference antireflective coating on a first side of the substrate, and an acrylic or polyurethane adhesive on a second side of the substrate. The second removable lens layer may be stacked on top of the first removable lens layer and so on.
G02B 3/02 - Simple or compound lenses with non-spherical faces
G02B 1/04 - Optical elements characterised by the material of which they are madeOptical coatings for optical elements made of organic materials, e.g. plastics
A removable lens stack includes a base layer, a first removable lens layer, and a second removable lens layer. The base layer may include a substrate and a moth eye coating. The first removable lens layer may include a substrate, a single or multi-layer interference antireflective coating on a first side of the substrate, and a fluoropolymer coating on a second side of the substrate. The first removable lens layer may be stacked on top of the base layer with the fluoropolymer coating being molded to fit the moth eye coating. The second and any subsequent removable lens layer may include a substrate, a single or multi-layer interference antireflective coating on a first side of the substrate, and an acrylic or polyurethane adhesive on a second side of the substrate. The second removable lens layer may be stacked on top of the first removable lens layer and so on.
G02B 3/02 - Simple or compound lenses with non-spherical faces
G02B 1/04 - Optical elements characterised by the material of which they are madeOptical coatings for optical elements made of organic materials, e.g. plastics
A removable lens stack includes a base layer and one or more removable lens layers. The base layer may include a substrate and moth eye coatings on first and second sides of the substrate. A first removable lens layer may include a substrate and an acrylic or fluoropolymer coating on a first side of the substrate and may be stacked on top of the base layer such that the second side of the substrate faces the first side of the substrate of the base layer. A second removable lens layer may include a substrate and an acrylic or fluoropolymer coating on a first side of the substrate and may be stacked on top of the first removable lens layer such that the second side of the substrate faces the first side of the substrate of the first removable lens layer. The acrylic or fluoropolymer coating may comprise a hard coat.
G02B 3/02 - Simple or compound lenses with non-spherical faces
G02B 1/04 - Optical elements characterised by the material of which they are madeOptical coatings for optical elements made of organic materials, e.g. plastics
A removable lens stack comprises a base layer including a substrate and an antistatic coating comprising quaternary ammonium cations on a first side of the substrate and one or more removable lens layers stacked on top of the base layer. Each removable lens layer may include a substrate, an antistatic coating comprising quaternary ammonium cations on a first side of the substrate, and an adhesive on a second side of the substrate opposite the first side. The one or more removable lens layers may be stacked on top of the base layer such that the second side of the substrate of each removable lens layer faces the first side of the substrate of an immediately preceding layer. Refractive indices of the substrate of the base layer, the substrate of each removable lens layer, and the adhesive of each removable lens layer may be matched (e.g., to within 0.2).
A removable lens stack comprises a base layer including a substrate and an antistatic coating comprising quaternary ammonium cations on a first side of the substrate and one or more removable lens layers stacked on top of the base layer. Each removable lens layer may include a substrate, an antistatic coating comprising quaternary ammonium cations on a first side of the substrate, and an adhesive on a second side of the substrate opposite the first side. The one or more removable lens layers may be stacked on top of the base layer such that the second side of the substrate of each removable lens layer faces the first side of the substrate of an immediately preceding layer. Refractive indices of the substrate of the base layer, the substrate of each removable lens layer, and the adhesive of each removable lens layer may be matched (e.g., to within 0.2).
G02B 1/16 - Optical coatings produced by application to, or surface treatment of, optical elements having an anti-static effect, e.g. electrically conducting coatings
A method of manufacturing a sterile stack of peelable lenses includes coating a first lens (or stack of lenses) with a first adhesive coating, heating the first adhesive coating to initiate curing, exposing the first adhesive coating to ultraviolet light to continue curing, laminating a second lens (or stack of lenses) onto a surface of the first adhesive coating to produce a stack of lenses, coating the second lens with a second adhesive coating, heating the second adhesive coating to initiate curing, exposing the second adhesive coating to ultraviolet light to continue curing, laminating a third lens (or stack of lenses) onto a surface of the second adhesive coating to add the third lens to the stack of lenses, and exposing the stack of lenses to an electron beam to continue curing of the first and second adhesive coatings.
A removable lens stack comprises a base layer including a substrate and an antistatic coating comprising quaternary ammonium cations on a first side of the substrate and one or more removable lens layers stacked on top of the base layer. Each removable lens layer may include a substrate, an antistatic coating comprising quaternary ammonium cations on a first side of the substrate, and an adhesive on a second side of the substrate opposite the first side. The one or more removable lens layers may be stacked on top of the base layer such that the second side of the substrate of each removable lens layer faces the first side of the substrate of an immediately preceding layer. Refractive indices of the substrate of the base layer, the substrate of each removable lens layer, and the adhesive of each removable lens layer may be matched (e.g., to within 0.2).
G02B 1/16 - Optical coatings produced by application to, or surface treatment of, optical elements having an anti-static effect, e.g. electrically conducting coatings
A protective lens stack comprises a base layer including a polyethylene terephthalate (PET) film containing a UV blocking additive and one or more removable lens layers stacked on top of the base layer. Each of the removable lens layers may include a PET film and a first adhesive disposed on a bottom surface of the PET film. Refractive indices of the base layer and the one or more removable lens layers may be matched to within 0.2. Each layer of the protective lens stack, including the base layer and each of the removable lens layer(s), may have less than 0.5% haze. The protective lens stack may be used as a face shield or may be surface mountable using a second adhesive disposed on a bottom surface of the PET film containing the UV blocking additive.
A41D 13/11 - Protective face masks, e.g. for surgical use, or for use in foul atmospheres
G02B 1/04 - Optical elements characterised by the material of which they are madeOptical coatings for optical elements made of organic materials, e.g. plastics
G02B 1/14 - Protective coatings, e.g. hard coatings
A removable lens stack includes a base layer, a first removable lens layer, and a second removable lens layer. The base layer may include a substrate and a moth eye coating. The first removable lens layer may include a substrate, a single or multi-layer interference antireflective coating on a first side of the substrate, and a fluoropolymer coating on a second side of the substrate. The first removable lens layer may be stacked on top of the base layer with the fluoropolymer coating being molded to fit the moth eye coating. The second and any subsequent removable lens layer may include a substrate, a single or multi-layer interference antireflective coating on a first side of the substrate, and an acrylic or polyurethane adhesive on a second side of the substrate. The second removable lens layer may be stacked on top of the first removable lens layer and so on.
G02B 3/02 - Simple or compound lenses with non-spherical faces
G02B 1/04 - Optical elements characterised by the material of which they are madeOptical coatings for optical elements made of organic materials, e.g. plastics
An eye protector includes a lens configured to protect the wearer from projectiles, and an optically clear stack attached to the lens. The stack can have one or more removable layers. The eye protector also includes an optically clear dry mount adhesive layer attaching the stack to the lens. The dry mount adhesive may be self-wetting to attach the stack to the lens so that air between the stack and the lens can be removed after the stack is attached and/or adhered to the lens, for example, by applying pressure across the surface of the stack. The refractive indices of the lens, the dry mount adhesive, and each removable layer are matched to within about 0.2.
B32B 7/06 - Interconnection of layers permitting easy separation
B32B 7/12 - Interconnection of layers using interposed adhesives or interposed materials with bonding properties
B32B 27/08 - Layered products essentially comprising synthetic resin as the main or only constituent of a layer next to another layer of a specific substance of synthetic resin of a different kind
A removable lens stack includes a base layer, a first removable lens layer, and a second removable lens layer. The base layer may include a substrate and a moth eye coating. The first removable lens layer may include a substrate, a single or multi-layer interference antireflective coating on a first side of the substrate, and a fluoropolymer coating on a second side of the substrate. The first removable lens layer may be stacked on top of the base layer with the fluoropolymer coating being molded to fit the moth eye coating. The second and any subsequent removable lens layer may include a substrate, a single or multi-layer interference antireflective coating on a first side of the substrate, and an acrylic or polyurethane adhesive on a second side of the substrate. The second removable lens layer may be stacked on top of the first removable lens layer and so on.
G02B 3/02 - Simple or compound lenses with non-spherical faces
G02B 1/04 - Optical elements characterised by the material of which they are madeOptical coatings for optical elements made of organic materials, e.g. plastics
22.
TRANSPARENT COVERING HAVING ANTI-REFLECTIVE COATINGS
A transparent covering affixable to a substrate includes a stack of two or more lenses, an adhesive layer interposed between each pair of adjacent lenses from among the two or more lenses, a first anti-reflective coating on a first outermost lens of the stack, and a second anti-reflective coating on a second outermost lens of the stack opposite the first outermost lens. The first anti-reflective coating has a first design wavelength range, and the second anti-reflective coating has a second design wavelength range that is different from the first design wavelength range.
A protective lens stack comprises a base layer including a polyethylene terephthalate (PET) film containing a UV blocking additive and one or more removable lens layers stacked on top of the base layer. Each of the removable lens layers may include a PET film and a first adhesive disposed on a bottom surface of the PET film. Refractive indices of the base layer and the one or more removable lens layers may be matched to within 0.2. Each layer of the protective lens stack, including the base layer and each of the removable lens layer(s), may have less than 0.5% haze. The protective lens stack may be used as a face shield or may be surface mountable using a second adhesive disposed on a bottom surface of the PET film containing the UV blocking additive.
G02B 1/14 - Protective coatings, e.g. hard coatings
G02B 1/04 - Optical elements characterised by the material of which they are madeOptical coatings for optical elements made of organic materials, e.g. plastics
A removable lens stack comprises a base layer and one or more removable lens layers. The base layer may include a substrate having a first side and a second side opposite the first and may further include a moth eye coating on the first side of the substrate. Each removable lens layer may include a substrate having a first side and a second side opposite the first side, a moth eye coating on the first side of the substrate, and a fluoropolymer coating on the second side of the substrate. The removable lens layer(s) may be stacked on top of the base layer such that the second side of the substrate of each removable lens layer faces the first side of the substrate of an immediately preceding base layer or removable lens layer. Each fluoropolymer coating may be molded to fit the moth eye coating of the immediately preceding layer.
G02B 3/02 - Simple or compound lenses with non-spherical faces
G02B 1/04 - Optical elements characterised by the material of which they are madeOptical coatings for optical elements made of organic materials, e.g. plastics
A protective lens stack comprises a base layer including a polyethylene terephthalate (PET) film containing a UV blocking additive and one or more removable lens layers stacked on top of the base layer. Each of the removable lens layers may include a PET film and a first adhesive disposed on a bottom surface of the PET film. Refractive indices of the base layer and the one or more removable lens layers may be matched to within 0.2. Each layer of the protective lens stack, including the base layer and each of the removable lens layer(s), may have less than 0.5% haze. The protective lens stack may be used as a face shield or may be surface mountable using a second adhesive disposed on a bottom surface of the PET film containing the UV blocking additive.
G02B 1/14 - Protective coatings, e.g. hard coatings
G02B 1/04 - Optical elements characterised by the material of which they are madeOptical coatings for optical elements made of organic materials, e.g. plastics
A removable lens stack comprises a base layer and one or more removable lens layers. The base layer may include a substrate having a first side and a second side opposite the first and may further include a moth eye coating on the first side of the substrate. Each removable lens layer may include a substrate having a first side and a second side opposite the first side, a moth eye coating on the first side of the substrate, and a fluoropolymer coating on the second side of the substrate. The removable lens layer(s) may be stacked on top of the base layer such that the second side of the substrate of each removable lens layer faces the first side of the substrate of an immediately preceding base layer or removable lens layer. Each fluoropolymer coating may be molded to fit the moth eye coating of the immediately preceding layer.
G02B 3/02 - Simple or compound lenses with non-spherical faces
G02B 1/04 - Optical elements characterised by the material of which they are madeOptical coatings for optical elements made of organic materials, e.g. plastics
An eye protector includes a lens configured to protect the wearer from projectiles, and an optically clear stack attached to the lens. The stack can have one or more removable layers. The eye protector also includes an optically clear dry mount adhesive layer attaching the stack to the lens. The dry mount adhesive may be self-wetting to attach the stack to the lens so that air between the stack and the lens can be removed after the stack is attached and/or adhered to the lens, for example, by applying pressure across the surface of the stack. The refractive indices of the lens, the dry mount adhesive, and each removable layer are matched to within about 0.2.
An optical web comprising includes a substrate with an anterior coating applied to the anterior side of the substrate and a posterior coating applied to the posterior side of the substrate. The refractive index of the anterior coating and the posterior coating is less than that of the substrate. A second coating layer may be applied to the anterior coating layer and/or the posterior coating layer, where the second coating layer has a refractive index less than that of the coating layer it is applied to. Additional coating layers may be applied to produce a stack of layers that decrease monotonically in refractive indexes moving outward from the substrate. The optical webs may be laminated together to form tear-off laminated lens stacks.
B32B 17/10 - Layered products essentially comprising sheet glass, or fibres of glass, slag or the like comprising glass as the main or only constituent of a layer, next to another layer of a specific substance of synthetic resin
G02B 1/14 - Protective coatings, e.g. hard coatings
A transparent covering affixable to a substrate includes a stack of two or more lenses, an adhesive layer interposed between each pair of adjacent lenses from among the two or more lenses, a first anti-reflective coating on a first outermost lens of the stack, and a second anti-reflective coating on a second outermost lens of the stack opposite the first outermost lens. The first anti-reflective coating has a first design wavelength range, and the second anti-reflective coating has a second design wavelength range that is different from the first design wavelength range.
An optical web comprising includes a substrate with an anterior coating applied to the anterior side of the substrate and a posterior coating applied to the posterior side of the substrate. The refractive index of the anterior coating and the posterior coating is less than that of the substrate. A second coating layer may be applied to the anterior coating layer and/or the posterior coating layer, where the second coating layer has a refractive index less than that of the coating layer it is applied to. Additional coating layers may be applied to produce a stack of layers that decrease monotonically in refractive indexes moving outward from the substrate. The optical webs may be laminated together to form tear-off laminated lens stacks.
B32B 17/10 - Layered products essentially comprising sheet glass, or fibres of glass, slag or the like comprising glass as the main or only constituent of a layer, next to another layer of a specific substance of synthetic resin
An eye protector includes a lens configured to protect the wearer from projectiles, and an optically clear stack attached to the lens. The stack can have one or more removable layers. The eye protector also includes an optically clear dry mount adhesive layer attaching the stack to the lens. The dry mount adhesive may be self-wetting to attach the stack to the lens so that air between the stack and the lens can be removed after the stack is attached and/or adhered to the lens, for example, by applying pressure across the surface of the stack. The refractive indices of the lens, the dry mount adhesive, and each removable layer are matched to within about 0.2.
An optical web comprising includes a substrate with an anterior coating applied to the anterior side of the substrate and a posterior coating applied to the posterior side of the substrate. The refractive index of the anterior coating and the posterior coating is less than that of the substrate. A second coating layer may be applied to the anterior coating layer and/or the posterior coating layer, where the second coating layer has a refractive index less than that of the coating layer it is applied to. Additional coating layers may be applied to produce a stack of layers that decrease monotonically in refractive indexes moving outward from the substrate. The optical webs may be laminated together to form tear-off laminated lens stacks.
B32B 17/10 - Layered products essentially comprising sheet glass, or fibres of glass, slag or the like comprising glass as the main or only constituent of a layer, next to another layer of a specific substance of synthetic resin
An eye protector includes a lens configured to protect the wearer from projectiles, and an optically clear stack attached to the lens. The stack can have one or more removable layers. The eye protector also includes an optically clear dry mount adhesive layer attaching the stack to the lens. The dry mount adhesive may be self-wetting to attach the stack to the lens so that air between the stack and the lens can be removed after the stack is attached and/or adhered to the lens, for example, by applying pressure across the surface of the stack. The refractive indices of the lens, the dry mount adhesive, and each removable layer are matched to within about 0.2.
An eye protector includes a lens configured to protect the wearer from projectiles, and an optically clear stack attached to the lens. The stack can have one or more removable layers. The eye protector also includes an optically clear dry mount adhesive layer attaching the stack to the lens. The dry mount adhesive may be self-wetting to attach the stack to the lens so that air between the stack and the lens can be removed after the stack is attached and/or adhered to the lens, for example, by applying pressure across the surface of the stack. The refractive indices of the lens, the dry mount adhesive, and each removable layer are matched to within about 0.2.
An eye protector includes a lens configured to protect the wearer from projectiles, and an optically clear stack attached to the lens. The stack can have one or more removable layers. The eye protector also includes an optically clear dry mount adhesive layer attaching the stack to the lens. The dry mount adhesive may be self-wetting to attach the stack to the lens so that air between the stack and the lens can be removed after the stack is attached and/or adhered to the lens, for example, by applying pressure across the surface of the stack. The refractive indices of the lens, the dry mount adhesive, and each removable layer are matched to within about 0.2.
An eye protector includes a lens configured to protect the wearer from projectiles, and an optically clear stack attached to the lens. The stack can have one or more removable layers. The eye protector also includes an optically clear dry mount adhesive layer attaching the stack to the lens. The dry mount adhesive may be self-wetting to attach the stack to the lens so that air between the stack and the lens can be removed after the stack is attached and/or adhered to the lens, for example, by applying pressure across the surface of the stack. The refractive indices of the lens, the dry mount adhesive, and each removable layer are matched to within about 0.2.
An eye protector includes a lens configured to protect the wearer from projectiles, and an optically clear stack attached to the lens. The stack can have one or more removable layers. The eye protector also includes an optically clear dry mount adhesive layer attaching the stack to the lens. The dry mount adhesive may be self-wetting to attach the stack to the lens so that air between the stack and the lens can be removed after the stack is attached and/or adhered to the lens, for example, by applying pressure across the surface of the stack. The refractive indices of the lens, the dry mount adhesive, and each removable layer are matched to within about 0.2.
A transparent covering affixable to a substrate includes a stack of two or more lenses, an adhesive layer interposed between each pair of adjacent lenses from among the two or more lenses, a first anti-reflective coating on a first outermost lens of the stack, and a second anti-reflective coating on a second outermost lens of the stack opposite the first outermost lens. The first anti-reflective coating has a first design wavelength range, and the second anti-reflective coating has a second design wavelength range that is different from the first design wavelength range.
B32B 7/12 - Interconnection of layers using interposed adhesives or interposed materials with bonding properties
B32B 9/04 - Layered products essentially comprising a particular substance not covered by groups comprising such substance as the main or only constituent of a layer, next to another layer of a specific substance
An eye protector includes a lens configured to protect the wearer from projectiles, and an optically clear stack attached to the lens. The stack can have one or more removable layers. The eye protector also includes an optically clear dry mount adhesive layer attaching the stack to the lens. The dry mount adhesive may be self-wetting to attach the stack to the lens so that air between the stack and the lens can be removed after the stack is attached and/or adhered to the lens, for example, by applying pressure across the surface of the stack. The refractive indices of the lens, the dry mount adhesive, and each removable layer are matched to within about 0.2.
A61F 9/00 - Methods or devices for treatment of the eyesDevices for putting in contact-lensesDevices to correct squintingApparatus to guide the blindProtective devices for the eyes, carried on the body or in the hand
A protective lens stack comprises a base layer including a polyethylene terephthalate (PET) film containing a UV blocking additive and one or more removable lens layers stacked on top of the base layer. Each of the removable lens layers may include a PET film and a first adhesive disposed on a bottom surface of the PET film. Refractive indices of the base layer and the one or more removable lens layers may be matched to within 0.2. Each layer of the protective lens stack, including the base layer and each of the removable lens layer(s), may have less than 0.5% haze. The protective lens stack may be used as a face shield or may be surface mountable using a second adhesive disposed on a bottom surface of the PET film containing the UV blocking additive.
A removable lens stack comprises a base layer and one or more removable lens layers. The base layer may include a substrate having a first side and a second side opposite the first and may further include a moth eye coating on the first side of the substrate. Each removable lens layer may include a substrate having a first side and a second side opposite the first side, a moth eye coating on the first side of the substrate, and a fluoropolymer coating on the second side of the substrate. The removable lens layer(s) may be stacked on top of the base layer such that the second side of the substrate of each removable lens layer faces the first side of the substrate of an immediately preceding base layer or removable lens layer. Each fluoropolymer coating may be molded to fit the moth eye coating of the immediately preceding layer.
G02B 1/04 - Optical elements characterised by the material of which they are madeOptical coatings for optical elements made of organic materials, e.g. plastics
G02B 3/02 - Simple or compound lenses with non-spherical faces
patents
