OPTICAL SYSTEM AND OPTICAL FILM
    1.
    发明公开

    公开(公告)号:US20240201428A1

    公开(公告)日:2024-06-20

    申请号:US18431242

    申请日:2024-02-02

    IPC分类号: G02B5/30

    CPC分类号: G02B5/305

    摘要: Optical films, such as reflective polarizer films, and optical systems including the optical films are described. An optical system includes one or more optical lenses having at least one curved major surface, a partial reflector, and a reflective polarizer. For a substantially normally incident light in a predetermined wavelength range extending at least from about 450 nm to about 600 nm: the partial reflector has an average optical reflectance of at least 30%, and the reflective polarizer has an average optical reflectance Rs for a first polarization state, an average optical transmittance Tp for an orthogonal second polarization state, and an average optical reflectance Rp for the second polarization state, where Tp≥80%, Rp≤1%, and 50%≤Rs≤95%.

    LOW WAVE-FRONT ERROR OPTICAL FILTER FILM

    公开(公告)号:US20220350066A1

    公开(公告)日:2022-11-03

    申请号:US17760517

    申请日:2020-08-17

    IPC分类号: G02B5/30 G02B27/28

    摘要: An optical assembly including a first optical substrate including a first major surface; a multilayer polymeric optical film disposed on the first major surface of the first optical substrate and including a plurality of polymeric layers numbering greater than about 50 in total; and a first optical bonding layer having an average thickness of less than about 0.5 microns and disposed between, and making physical contact to, the first major surface of the first optical substrate and the multilayer polymeric optical film, the first optical bonding layer bonding the first optical substrate to the multilayer polymeric optical film and including a silanated amine.

    OPTICAL SYSTEM AND OPTICAL FILM
    3.
    发明申请

    公开(公告)号:US20210215865A1

    公开(公告)日:2021-07-15

    申请号:US17054247

    申请日:2019-07-11

    IPC分类号: G02B5/30

    摘要: Optical films, such as reflective polarizer films, and optical systems including the optical films are described. An optical system includes one or more optical lenses having at least one curved major surface, a partial reflector, and a reflective polarizer. For a substantially normally incident light in a predetermined wavelength range extending at least from about 450 nm to about 600 nm: the partial reflector has an average optical reflectance of at least 30%, and the reflective polarizer has an average optical reflectance Rs for a first polarization state, an average optical transmittance Tp for an orthogonal second polarization state, and an average optical reflectance Rp for the second polarization state, where Tp≥80%, Rp≤1%, and 50%≤Rs≤95%.

    OPTICAL FILM AND POLARIZING BEAM SPLITTER
    4.
    发明申请

    公开(公告)号:US20200319389A1

    公开(公告)日:2020-10-08

    申请号:US16753444

    申请日:2018-10-18

    IPC分类号: G02B5/30 G02B27/28

    摘要: Optical films and polarizing beam splitters including the optical films are described. In some cases, the optical film includes a first optical stack disposed on, and spaced apart by one or more spacer layers from, a second optical stack, each optical stack comprising a plurality of polymeric interference layers reflecting and transmitting light primarily by optical interference in a same predetermined wavelength range. Each optical stack has interference layers closer to the one or more spacer layers that reflect longer wavelengths and interference layers farther from the one or more spacer layers that reflect shorter wavelengths.

    OPTICAL LENS ASSEMBLY WITH WIDE FIELD OF VIEW

    公开(公告)号:US20240160005A1

    公开(公告)日:2024-05-16

    申请号:US18282867

    申请日:2022-03-24

    IPC分类号: G02B25/00 G02B17/08 G02B27/01

    摘要: An optical lens assembly includes a first optical lens having opposing first and second major surfaces and facing a second lens having opposing third and fourth major surfaces. The second and third major surfaces face each other. The first through fourth major surfaces having respective sags, S1-S4, wherein each of the sags is defined by: (1) where c is 1/radius of curvature of the major surface, k is the conic constant of the surface, r is a distance from an optical axis, and a is an aspheric deformation constant. The first major surface includes a convex central portion surrounded by an annular concave outer portion, the second major surface is convex, the third major surface is substantially planar, and the fourth major surface is convex, wherein for r extending from about 1 mm to at least about 25 mm: −0.7≤S1/S2≤1-0.2≤S1/S4≤0.4.







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    Optical Lens Including Optical Film Bonded to Lens Substrate

    公开(公告)号:US20240012179A1

    公开(公告)日:2024-01-11

    申请号:US18253459

    申请日:2021-11-16

    IPC分类号: G02B1/04 G02B5/28

    CPC分类号: G02B1/041 G02B5/287

    摘要: An optical lens includes a lens substrate including a cyclic olefin copolymer, an optical film including a plurality of alternating first and second polymeric layers, and a bonding film disposed on, and bonding the optical film to, a major surface of the lens substrate. The bonding film causes an average peel force to separate the optical film from the lens substrate to be greater than about 100 g/in while maintaining for at least one outermost major surface of the optical film, a mean displacement surface roughness Sa of less than about 10 nm and a slope magnitude error of less than about 100 μrad, and/or lower and higher spatial frequency slope magnitude errors each less than about 100 μrad.

    Optical Systems
    9.
    发明公开
    Optical Systems 审中-公开

    公开(公告)号:US20240004117A1

    公开(公告)日:2024-01-04

    申请号:US18254437

    申请日:2021-11-16

    IPC分类号: G02B5/30

    CPC分类号: G02B5/305 G02B1/041

    摘要: An optical assembly includes an integral lens assembly having one or more lenses bonded to each other with spaced apart major first and second lens surfaces. First and second optical films are bonded to respective major first and second lens surfaces. The first and second optical films includes a plurality of polymeric layers. Each of the polymeric layers have an average thickness of less than about 500 nm. For a substantially normally incident light and a visible wavelength range the plurality of polymeric layers in the first optical film has an average optical transmittance and an average optical reflectance of greater than about 70% for a first polarization state and an orthogonal second polarization state, respectively. The plurality of polymeric layers in the second optical film has an average optical transmittance of greater than about 70% for at least one of the first and second polarization states.

    Optical System
    10.
    发明公开
    Optical System 审中-公开

    公开(公告)号:US20230244010A1

    公开(公告)日:2023-08-03

    申请号:US18100150

    申请日:2023-01-23

    IPC分类号: G02B5/02 G02B17/08 G06F1/16

    摘要: An optical system includes a display, at least one lens, and at least one of a partial reflector and a reflective polarizer. The optical system forms a virtual image of an image emitted by the display for viewing by an eye. The emitted image includes a plurality of cones of image light. Each cone of image light propagates from a different corresponding location on the emitted image and includes a central light ray propagating along a central axis, such that in each of orthogonal first and second planes that include the central axis, an intensity distribution of the cone of image light as a function of angle relative to the central axis includes a substantially flat peak having a full width of at least 15 degrees across which the peak changes by less than about 20%, and a corresponding fullwidth at half maximum that is less than about 60 degrees.