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公开(公告)号:US20230333282A1
公开(公告)日:2023-10-19
申请号:US18112152
申请日:2023-02-21
Applicant: Moxtek, Inc.
Inventor: Daniel Bacon-Brown , Bradley R. WILLIAMS
IPC: G02B1/00
CPC classification number: G02B1/002
Abstract: Optical metasurfaces can manipulate a light wavefront without traditional lenses. They can include pillars with subwavelength dimensions on a substrate. The pillars can vary in size, shape, and spacing across a surface of the substrate. Each pillar size and shape can diffract incident light and provide a unique electromagnetic response. The metasurface can provide desired light wavefront manipulation without the thickness of traditional lenses. The metasurface can overcome the aberration problem of traditional lenses. An overcoat layer can be located at a distal-end of the pillars. Pillar pitch can be adjusted for uniform spacing between pillars, and uniform overcoat coverage. The overcoat layer can protect the pillars. An alternative to the overcoat layer is a solid fill-material filling gaps between the pillars.
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公开(公告)号:US20210018669A1
公开(公告)日:2021-01-21
申请号:US16919513
申请日:2020-07-02
Applicant: Moxtek, Inc.
Inventor: Daniel Bacon-Brown , Michael Black , R. Stewart Nielson , Bradley R. Williams , Benjamin Downard , Jeffrey H. Rice , Jim Pierce
IPC: G02B5/30
Abstract: A reflective wire grid polarizer (WGP) can include an array of wires 12 on a face of a substrate 11, with channels 15 between adjacent wires 12. The wires 12 can have certain characteristics for WGP performance, such as index of refraction, alternating high/low index continuous thin films, thickness of layer(s), duty cycle, reflective rib shape, a curved side of transparent ribs 21 or 32, aspect ratio, or combinations thereof.
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公开(公告)号:US11988859B2
公开(公告)日:2024-05-21
申请号:US17974318
申请日:2022-10-26
Applicant: Moxtek, Inc.
Inventor: Daniel Bacon-Brown , Michael Black , R. Stewart Nielson , Bradley R. Williams , Benjamin Downard , Jeffrey H. Rice , Jim Pierce
IPC: G02B5/30
CPC classification number: G02B5/3058 , G02B5/3075
Abstract: A reflective wire grid polarizer (WGP) can include an array of wires 12 on a face of a substrate 11, with channels 15 between adjacent wires 12. The wires 12 can have certain characteristics for WGP performance, such as index of refraction, alternating high/low index continuous thin films, thickness of layer(s), duty cycle, reflective rib shape, a curved side of transparent ribs 21 or 32, aspect ratio, or combinations thereof.
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公开(公告)号:US20230021232A1
公开(公告)日:2023-01-19
申请号:US17842026
申请日:2022-06-16
Applicant: Moxtek, Inc.
Inventor: Matthew C. George , Daniel Bacon-Brown , R. Stewart Nielson , Shaun Patrick Ogden
IPC: G02B5/30
Abstract: The wire grid polarizers 10 and 30 described herein, and wire grid polarizers made by methods described herein, can have high performance across a broad range of the ultraviolet spectrum and across a broad angle of incidence. These polarizers can be durable (resistant to heat, moisture, ultraviolet light, and oxidation). The polarizer can include an array of wires 15 on a substrate 11. Each wire 15 can have a silicon core 12 and a pair of silicon dioxide ribs 13. The core 12 can be sandwiched between the pair of ribs 13, with each rib 13 adjacent to a sidewall 12s of the core 12. A rib width W13 can be ≥4 nm. Each wire 15 can also include a silicon dioxide cap 14. The core 12 can be encircled by a silicon dioxide ring 17.
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公开(公告)号:US20230046399A1
公开(公告)日:2023-02-16
申请号:US17974318
申请日:2022-10-26
Applicant: Moxtek, Inc.
Inventor: Daniel Bacon-Brown , Michael Black , R. Stewart Nielson , Bradley R. Williams , Benjamin Downard , Jeffrey H. Rice , JIm Pierce
IPC: G02B5/30
Abstract: A reflective wire grid polarizer (WGP) can include an array of wires 12 on a face of a substrate 11, with channels 15 between adjacent wires 12. The wires 12 can have certain characteristics for WGP performance, such as index of refraction, alternating high/low index continuous thin films, thickness of layer(s), duty cycle, reflective rib shape, a curved side of transparent ribs 21 or 32, aspect ratio, or combinations thereof.
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公开(公告)号:US20220381963A1
公开(公告)日:2022-12-01
申请号:US17730331
申请日:2022-04-27
Applicant: Moxtek, Inc.
Inventor: Matthew C. George , Daniel Bacon-Brown
Abstract: Optical devices with different regions or pixels can form an image. An opaque-region 14 can be used to separate different pixels. Sometimes the optical device needs to be flexible, for elongation or stretching onto a curved surface. But, the opaque-region 14 can be damaged as it is stretched. A flexible optical device can include a modified opaque-region 14 for improved flexibility. The opaque-region 14 can include a thin-film 12 with multiple cavities 13, multiple zones 63, or both. Each zone 63 can have a shape optimized to both block incoming light and for flexibility. Each zone 63 can be encircled and separated from adjacent zones 63 by a groove 62. The cavities 13 and the separate zones 63 can allow the opaque-region 14 to bend or stretch without cracking or delamination of the thin-film 12.
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公开(公告)号:US11513271B2
公开(公告)日:2022-11-29
申请号:US16919513
申请日:2020-07-02
Applicant: Moxtek, Inc.
Inventor: Daniel Bacon-Brown , Michael Black , R. Stewart Nielson , Bradley R. Williams , Benjamin Downard , Jeffrey H. Rice , Jim Pierce
IPC: G02B5/30
Abstract: A reflective wire grid polarizer (WGP) can include an array of wires 12 on a face of a substrate 11, with channels 15 between adjacent wires 12. The wires 12 can have certain characteristics for WGP performance, such as index of refraction, alternating high/low index continuous thin films, thickness of layer(s), duty cycle, reflective rib shape, a curved side of transparent ribs 21 or 32, aspect ratio, or combinations thereof.
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公开(公告)号:US20230236347A1
公开(公告)日:2023-07-27
申请号:US18095322
申请日:2023-01-10
Applicant: Moxtek, Inc.
Inventor: Matthew C. George , Daniel Bacon-Brown , R. Stewart Nielson , Shaun Patrick Ogden
IPC: G02B5/30
CPC classification number: G02B5/3058
Abstract: The reflective wire grid polarizers herein can withstand ultraviolet light without rapid degradation and can have high performance in the ultraviolet spectrum. In one example, each wire can include a metal layer, a pair of low index layers, a silicon layer, and a high index layer. The metal layer can be sandwiched between the pair of low index layers. The metal layer and the pair of low index layers can be sandwiched between the silicon layer and the high index layer. In another example, each wire can include a metal layer and a silicon layer. The silicon layer can be thicker than the metal layer. Thus, the silicon layer can be relatively thick, and can be the main polarizing component of the wire. The metal layer can be added for increased reflectance.
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公开(公告)号:US20220179145A1
公开(公告)日:2022-06-09
申请号:US17523182
申请日:2021-11-10
Applicant: Moxtek, Inc.
Inventor: Daniel Bacon-Brown
IPC: G02B5/30
Abstract: The waveplates herein (A) can have high performance across a broad wavelength range and broad range of incident angles; (B) can be thin; and (C) can withstand a high temperature. The waveplates can include ribs 12 on a substrate 11 with a channel 13 between each pair of adjacent ribs 12. Each rib 12 can include the following layers in the following order moving outward from the substrate: a bottom-medium-layer BM (nBM), a high-layer H (nH), then a top-medium-layer TM (nTM). Each rib 12 can be located on a bottom-low-layer BL (nBL). A top-low-layer TL (nTL) can be located on a face TMF of the top-medium-layer TM farthest from the substrate 11. Relationships between indices of refraction of these layers can be nBL
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