Low reflectance removable lens stack

    公开(公告)号:US11988850B2

    公开(公告)日:2024-05-21

    申请号:US18315394

    申请日:2023-05-10

    IPC分类号: G02B3/02 G02B1/04

    CPC分类号: G02B3/02 G02B1/041

    摘要: 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.

    STACK OF STERILE PEELABLE LENSES WITH LOW CREEP

    公开(公告)号:US20230393307A1

    公开(公告)日:2023-12-07

    申请号:US17823413

    申请日:2022-08-30

    IPC分类号: G02B1/14 G02B3/00

    CPC分类号: G02B1/14 G02B3/0062

    摘要: 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.

    Low haze UV blocking removable lens stack

    公开(公告)号:US11723420B2

    公开(公告)日:2023-08-15

    申请号:US17938308

    申请日:2022-10-05

    摘要: 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.

    Transparent covering having anti-reflective coatings

    公开(公告)号:US11585962B2

    公开(公告)日:2023-02-21

    申请号:US16584648

    申请日:2019-09-26

    发明人: Stephen S. Wilson

    IPC分类号: G02B1/11 G02B1/113 G02B3/00

    摘要: 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.

    LOW REFLECTANCE REMOVABLE LENS STACK

    公开(公告)号:US20230036735A1

    公开(公告)日:2023-02-02

    申请号:US17655328

    申请日:2022-03-17

    IPC分类号: G02B3/02 G02B1/04

    摘要: 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.

    THERMOFORM WINDSHIELD STACK WITH INTEGRATED FORMABLE MOLD

    公开(公告)号:US20220350055A1

    公开(公告)日:2022-11-03

    申请号:US17813494

    申请日:2022-07-19

    IPC分类号: G02B3/00 B29D11/00 B29C33/38

    摘要: Manufacturing a pre-molded stack of one or more lenses to be installable on a curved substrate such as a vehicle windshield includes placing a moldable stack of one or more lenses and adhesive layer(s) on a mold, applying heat and pressure to the moldable stack to produce a pre-molded stack of one or more lenses from the moldable stack, and removing the pre-molded stack from the mold. The pre-molded stack may have a compound curvature, which may match a curvature of the curved substrate. The mold may be formed using three-dimensional shape data derived from the curved substrate, such as by optically scanning the curved substrate.

    POLYMER SAFETY GLAZING FOR VEHICLES

    公开(公告)号:US20220274390A1

    公开(公告)日:2022-09-01

    申请号:US17664018

    申请日:2022-05-18

    IPC分类号: B32B27/36 B32B7/06 B32B7/12

    摘要: A laminate includes a polycarbonate substrate and an ultraviolet hard coat film disposed on the polycarbonate substrate. The ultraviolet hard coat film may include a polyethylene terephthalate (PET) layer, an adhesive interposed between the PET layer and the polycarbonate substrate, and an exterior hard coat disposed on the PET layer opposite the polycarbonate substrate. The exterior hard coat may include UV stabilizers. The laminate may include additional ultraviolet hard coat films stacked on the ultraviolet hard coat film. The laminate may be thermoformed into the shape of a curved vehicle windshield.

    Touch screen protector
    10.
    发明授权

    公开(公告)号:US11281253B2

    公开(公告)日:2022-03-22

    申请号:US16076774

    申请日:2017-02-08

    摘要: A touch screen protector is removably attachable to a touch screen device. The protector attaches to the touch screen device about an outer peripheral portion of the touch screen, thereby not adhering to a central video display portion of the touch screen. The protector is pre-formed with a curvature that causes the protector, when attached to the device, to rise upwards and away from the touch screen. By biasing the protector away from the touch screen, the attached protector inhibits optical interference forming between the protector and the touch screen. The curvature is configured to provide a separation that is large enough to inhibit formation of optical interference between the protector and the touch screen, but small enough to maintain touch sensitivity of the touch screen.