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1.发明申请公开(公告)号：US20160172416A1
公开(公告)日：2016-06-16
申请号：US15017583
申请日：2016-02-05
申请人： VIAVI SOLUTIONS INC.
IPC分类号： H01L27/146 , G02B5/28
CPC分类号： H01L27/14621 , G01J3/0259 , G01J3/26 , G01J2003/1226 , G01J2003/1234 , G01J2003/1239 , G02B5/281 , G02B5/288 , H01L27/14623 , H01L27/1463 , H01L27/14634 , H01L27/14643 , H01L27/14685
摘要： A variable optical filter is disclosed including a bandpass filter and a blocking filter. The bandpass filter includes a stack of alternating first and second layers, and the blocking filter includes a stack of alternating third and fourth layers. The first, second and fourth materials each comprise different materials, so that a refractive index of the first material is smaller than a refractive index of the second material, which is smaller than a refractive index of the fourth material; while an absorption coefficient of the second material is smaller than an absorption coefficient of the fourth material. The materials can be selected to ensure high index contrast in the blocking filter and low optical losses in the bandpass filter. The first to fourth layers can be deposited directly on a photodetector array.
摘要翻译： 公开了一种可变滤波器，其包括带通滤波器和阻塞滤波器。 带通滤波器包括交替的第一和第二层的堆叠，并且阻挡滤波器包括交替的第三和第四层的堆叠。 第一，第二和第四材料各自包括不同的材料，使得第一材料的折射率小于第二材料的折射率，其小于第四材料的折射率; 而第二材料的吸收系数小于第四材料的吸收系数。 可以选择材料以确保阻挡滤波器中的高折射率对比度和带通滤波器中的低光损耗。 第一至第四层可以直接沉积在光电检测器阵列上。
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公开(公告)号：US12055739B2
公开(公告)日：2024-08-06
申请号：US17446852
申请日：2021-09-03
申请人： VIAVI Solutions Inc.
IPC分类号： G02B5/28 , C23C14/08 , C23C14/18 , C23C14/54 , C23C14/58 , G01J5/0802 , G02B1/11 , G02B1/115 , G02B5/20 , G06V40/20 , H04N5/33 , H04N13/254
CPC分类号： G02B5/281 , C23C14/08 , C23C14/185 , C23C14/548 , C23C14/5806 , G01J5/0802 , G02B1/11 , G02B1/115 , G02B5/207 , G02B5/285 , G06V40/20 , H04N5/33 , H04N13/254
摘要： An optical filter having a passband at least partially overlapping with a wavelength range of 800 nm to 1100 nm is provided. The optical filter includes a filter stack formed of hydrogenated silicon layers and lower-refractive index layers stacked in alternation. The hydrogenated silicon layers each have a refractive index of greater than 3 over the wavelength range of 800 mn to 1100 nm and an extinction coefficient of less than 0.0005 over the wavelength range of 800 nm to 1100 nm.
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公开(公告)号：US10756131B2
公开(公告)日：2020-08-25
申请号：US16425280
申请日：2019-05-29
申请人： VIAVI Solutions Inc.
IPC分类号： H01L27/146 , G02B5/28 , G01J3/26 , G01J3/02 , G01J3/12
摘要： A variable optical filter is disclosed including a bandpass filter and a blocking filter. The bandpass filter includes a stack of alternating first and second layers, and the blocking filter includes a stack of alternating third and fourth layers. The first, second and fourth materials each comprise different materials, so that a refractive index of the first material is smaller than a refractive index of the second material, which is smaller than a refractive index of the fourth material; while an absorption coefficient of the second material is smaller than an absorption coefficient of the fourth material. The materials can be selected to ensure high index contrast in the blocking filter and low optical losses in the bandpass filter. The first to fourth layers can be deposited directly on a photodetector array.
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公开(公告)号：US10312277B2
公开(公告)日：2019-06-04
申请号：US15837180
申请日：2017-12-11
申请人： Viavi Solutions Inc.
IPC分类号： H01L27/146 , G02B5/28 , G01J3/26 , G01J3/02 , G01J3/12
摘要： A variable optical filter is disclosed including a bandpass filter and a blocking filter. The bandpass filter includes a stack of alternating first and second layers, and the blocking filter includes a stack of alternating third and fourth layers. The first, second and fourth materials each comprise different materials, so that a refractive index of the first material is smaller than a refractive index of the second material, which is smaller than a refractive index of the fourth material; while an absorption coefficient of the second material is smaller than an absorption coefficient of the fourth material. The materials can be selected to ensure high index contrast in the blocking filter and low optical losses in the bandpass filter. The first to fourth layers can be deposited directly on a photodetector array.
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公开(公告)号：US11131862B2
公开(公告)日：2021-09-28
申请号：US16027011
申请日：2018-07-03
申请人： VIAVI Solutions Inc.
摘要： A dichroic prism beamsplitter may include a medium with a refractive index greater than approximately 1.0. The dichroic prism beamsplitter may include a plurality of layers sandwiched by the medium. The plurality of layers may include an equivalent structure including at least one layer with a refractive index that is less than a threshold refractive index for total internal reflection. The at least one layer may be associated with a thickness less than or equal to a threshold thickness associated with total internal reflection for a threshold wavelength. The at least one layer may cause total internal reflection for a first wavelength range that is less than or equal to the threshold wavelength and causes evanescent wave coupling for a second wavelength range that is greater than the threshold wavelength.
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公开(公告)号：US09588269B2
公开(公告)日：2017-03-07
申请号：US15158191
申请日：2016-05-18
CPC分类号： G02B5/281 , G01J5/0862 , G02B1/11 , G02B5/207 , G02B5/285 , G06K9/00335 , H04N5/33 , H04N13/254
摘要： An optical filter having a passband at least partially overlapping with a wavelength range of 800 nm to 1100 nm is provided. The optical filter includes a filter stack formed of hydrogenated silicon layers and lower-refractive index layers stacked in alternation. The hydrogenated silicon layers each have a refractive index of greater than 3 over the wavelength range of 800 nm to 1100 nm and an extinction coefficient of less than 0.0005 over the wavelength range of 800 nm to 1100 nm.
摘要翻译： 提供具有与800nm至1100nm的波长范围至少部分重叠的通带的滤光器。 滤光器包括由氢化硅层和交替堆叠的低折射率层形成的滤光片叠层。 氢化硅层在800nm至1100nm的波长范围内的折射率大于3，在800nm至1100nm的波长范围内的消光系数小于0.0005。
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7.发明授权公开(公告)号：US09515119B2
公开(公告)日：2016-12-06
申请号：US15017583
申请日：2016-02-05
申请人： VIAVI SOLUTIONS INC.
IPC分类号： H01L27/146 , G02B5/28
CPC分类号： H01L27/14621 , G01J3/0259 , G01J3/26 , G01J2003/1226 , G01J2003/1234 , G01J2003/1239 , G02B5/281 , G02B5/288 , H01L27/14623 , H01L27/1463 , H01L27/14634 , H01L27/14643 , H01L27/14685
摘要： A variable optical filter is disclosed including a bandpass filter and a blocking filter. The bandpass filter includes a stack of alternating first and second layers, and the blocking filter includes a stack of alternating third and fourth layers. The first, second and fourth materials each comprise different materials, so that a refractive index of the first material is smaller than a refractive index of the second material, which is smaller than a refractive index of the fourth material; while an absorption coefficient of the second material is smaller than an absorption coefficient of the fourth material. The materials can be selected to ensure high index contrast in the blocking filter and low optical losses in the bandpass filter. The first to fourth layers can be deposited directly on a photodetector array.
摘要翻译： 公开了一种可变滤波器，其包括带通滤波器和阻塞滤波器。 带通滤波器包括交替的第一和第二层的堆叠，并且阻挡滤波器包括交替的第三和第四层的堆叠。 第一，第二和第四材料各自包括不同的材料，使得第一材料的折射率小于第二材料的折射率，其小于第四材料的折射率; 而第二材料的吸收系数小于第四材料的吸收系数。 可以选择材料以确保阻挡滤波器中的高折射率对比度和带通滤波器中的低光损耗。 第一至第四层可以直接沉积在光电检测器阵列上。
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公开(公告)号：US09354369B2
公开(公告)日：2016-05-31
申请号：US13943596
申请日：2013-07-16
申请人： Viavi Solutions Inc.
CPC分类号： G02B5/281 , G01J5/0862 , G02B1/11 , G02B5/207 , G02B5/285 , G06K9/00335 , H04N5/33 , H04N13/254
摘要： An optical filter having a passband at least partially overlapping with a wavelength range of 800 nm to 1100 nm is provided. The optical filter includes a filter stack formed of hydrogenated silicon layers and lower-refractive index layers stacked in alternation. The hydrogenated silicon layers each have a refractive index of greater than 3 over the wavelength range of 800 nm to 1100 nm and an extinction coefficient of less than 0.0005 over the wavelength range of 800 nm to 1100 nm.
摘要翻译： 提供具有与800nm至1100nm的波长范围至少部分重叠的通带的滤光器。 滤光器包括由氢化硅层和交替堆叠的低折射率层形成的滤光片叠层。 氢化硅层在800nm至1100nm的波长范围内的折射率大于3，在800nm至1100nm的波长范围内的消光系数小于0.0005。
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公开(公告)号：US11056522B2
公开(公告)日：2021-07-06
申请号：US16240560
申请日：2019-01-04
申请人： VIAVI SOLUTIONS INC.
IPC分类号： H01L27/146
摘要： An optical sensor assembly is provided in which a dark mirror coating is used to suppress stray light in the form of both unwanted reflections from non-optically active regions of the sensor assembly surface and unwanted transmission of light into the surface region of the sensor assembly. The sensor assembly includes an image sensor positioned in a substrate adjacent to substrate surface areas that are not optically active. A dark mirror coating covering those surface areas significantly reduces reflections from non-optically active surface regions and improves image sensor performance in terms of signal-to-noise ratio and reduction in the appearance of “ghost” images, in turn enhancing the accuracy and precision of the sensor. The dark mirror coating may in the alternative, or in addition, be positioned underneath an optical filter, depending on the structure, material, and requirements of a particular sensor assembly.
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公开(公告)号：US10914961B2
公开(公告)日：2021-02-09
申请号：US15431344
申请日：2017-02-13
申请人： Viavi Solutions Inc.
摘要： An optical filter may include a substrate. The optical filter may include a set of alternating high refractive index layers and low refractive index layers disposed onto the substrate to polarization beam split incident light. The set of alternating high refractive index layers and low refractive index may layers may be disposed such that a first polarization of the incident light with a spectral range of less than approximately 800 nanometers (nm) is reflected by the optical filter and a second polarization of the incident light with a spectral range of greater than approximately 800 nm is passed through by the optical filter. The high refractive index layers may be hydrogenated silicon (Si:H). The low refractive index layers may be silicon dioxide (SiO2).
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