Amplitude mask for writing long-period gratings
    23.
    发明授权
    Amplitude mask for writing long-period gratings 失效
    用于写入长周期光栅的幅度掩模

    公开(公告)号:US06447959B1

    公开(公告)日:2002-09-10

    申请号:US09572520

    申请日:2000-05-17

    CPC classification number: G02B6/02142 G03F7/0005

    Abstract: Long-period gratings are written more quickly and at higher intensities by amplitude masks having shadow-forming patterns that scatter, redirect, or otherwise divert shadow portions of radiation used for writing the gratings instead of blocking the shadow portions by absorption or reflection. The shadow-forming masks can be formed along transparent base optics by arrays of diffusers, diffractors, or refractors that relatively divert different portions of the radiation.

    Abstract translation: 长时间光栅通过具有阴影形成图案的幅度掩模更快地写入,并且以更高的强度写入,这些阴影形成图案散射,重定向或以其他方式转移用于写入光栅的辐射的阴影部分,而不是通过吸收或反射来阻挡阴影部分。 阴影形成掩模可以通过相对偏转辐射的不同部分的扩散器,衍射体或折射体的阵列沿透明基底光学器件形成。

    INTERFERENCE FILTER FOR NON-ZERO ANGLE OF INCIDENCE SPECTROSCOPY
    24.
    发明申请
    INTERFERENCE FILTER FOR NON-ZERO ANGLE OF INCIDENCE SPECTROSCOPY 有权
    干涉滤光片用于非零角度的入射光谱

    公开(公告)号:US20160011350A1

    公开(公告)日:2016-01-14

    申请号:US14622441

    申请日:2015-02-13

    CPC classification number: G02B5/288 G02B5/28

    Abstract: The present disclosure relates to thin film optical interference filters. The filters include a substrate and a plurality of alternating material layers deposited on the substrate. When operated at about 45° angle of incidence, the filters exhibit at least one of improved polarization splitting, edge steepness, bandpass bandwidth, and blocking, relative to conventional thin film interference filters.

    Abstract translation: 本公开涉及薄膜光学干涉滤光器。 滤光器包括基板和沉积在基板上的多个交替材料层。 当以约45°入射角操作时,相对于常规薄膜干涉滤光器,滤光器显示出改进的偏振分裂,边缘陡度,带通带宽和阻挡中的至少一个。

    Tunable thin-film filter
    25.
    发明授权
    Tunable thin-film filter 有权
    可调薄膜过滤器

    公开(公告)号:US08441710B2

    公开(公告)日:2013-05-14

    申请号:US12684871

    申请日:2010-01-08

    CPC classification number: G02B5/286 G02B6/29361 G02B27/288

    Abstract: An optical filter is provided, including a first plurality and second plurality of alternating first and second material layers, where the first plurality of layers is at a first angle to incident light and has a cut-on edge, and the second plurality of layers is at a second angle to the incident light and a cut-off edge; where polarization splitting of the first plurality of layers at the cut-on edge and polarization splitting of the second plurality of layers at the cut-off edge do not exceed approximately 1 percent for any first and second angle between approximately 0 and 40 degrees; and the s-stopband wavelength of the second plurality of layers is approximately less than or equal to the cut-on edge wavelength, which is less than the cut-off edge wavelength, which is approximately less than or equal to the s-stopband wavelength of the first plurality of layers.

    Abstract translation: 提供了一种滤光器,包括第一多个和第二多个交替的第一和第二材料层,其中第一多个层与入射光成一定角度并具有切割边缘,第二多个层是 与入射光和切断边缘成第二角度; 其中所述切割边缘处的所述第一多个层的极化分裂和所述切割边缘处的所述第二多个层的偏振分裂对于大约0和40度之间的任何第一和第二角度不超过约1%; 并且第二多个层的s阻带波长近似小于或等于小于截止边缘波长的切入边缘波长,其大约小于或等于s阻带波长 的第一多个层。

    MULTILAYER THIN FILM ATTENUATORS
    26.
    发明申请
    MULTILAYER THIN FILM ATTENUATORS 有权
    多层薄膜衰减器

    公开(公告)号:US20120293868A1

    公开(公告)日:2012-11-22

    申请号:US13112006

    申请日:2011-05-20

    CPC classification number: G02B27/281 G02B1/11 G02B1/115 G02B5/285 G02B5/3041

    Abstract: An optical element has layers formed on a substrate, including alternating first and second layers having first and second refractive indices, nL and nH that exhibit a spectral characteristic, providing, for incident light at a predetermined wavelength and directed toward the optical element within a range of angles bounded by first and second incident angles θ1 and θ2, between 0 and 80 degrees and differing by at least 1 degree, substantially linear polarization-averaged attenuation of the incident light energy wherein, for any incident angle θn between θ1 and θ2, Aθn is the corresponding polarization-averaged attenuation, and wherein the polarization-averaged attenuation at Aθn at angle θ1 is less than or equal to an optical density value of 0.2 and the polarization-averaged attenuation Aθn at angle θ2 exceeds an optical density value of 4.

    Abstract translation: 光学元件具有形成在衬底上的层,包括具有第一和第二折射率的交替的第一和第二层,nL和nH表现出光谱特性,为预定波长的入射光提供一定范围内的光学元件 由第一和第二入射角度和角度限定的角度; 1和θ; 2,0和80度之间并且相差至少1度,入射光能的基本上线偏振平均衰减,其中对于任何入射角度θ 1和& t; 2,A&Thetas; n是对应的极化平均衰减,其中A& T s处的极化平均衰减n在角度θ时小于或等于光密度值0.2, 偏振平均衰减A和角度n在角度θ处超过光密度值4。

    TUNABLE THIN-FILM FILTER
    27.
    发明申请
    TUNABLE THIN-FILM FILTER 有权
    透明薄膜过滤器

    公开(公告)号:US20110170164A1

    公开(公告)日:2011-07-14

    申请号:US12684871

    申请日:2010-01-08

    CPC classification number: G02B5/286 G02B6/29361 G02B27/288

    Abstract: An optical filter is provided, including a first plurality and second plurality of alternating first and second material layers, where the first plurality of layers is at a first angle to incident light and has a cut-on edge, and the second plurality of layers is at a second angle to the incident light and a cut-off edge; where polarization splitting of the first plurality of layers at the cut-on edge and polarization splitting of the second plurality of layers at the cut-off edge do not exceed approximately 1 percent for any first and second angle between approximately 0 and 40 degrees; and the s-stopband wavelength of the second plurality of layers is approximately less than or equal to the cut-on edge wavelength, which is less than the cut-off edge wavelength, which is approximately less than or equal to the s-stopband wavelength of the first plurality of layers.

    Abstract translation: 提供了一种滤光器,包括第一多个和第二多个交替的第一和第二材料层,其中所述第一多个层与入射光成一定角度并具有切割边缘,并且所述第二多个层是 与入射光和切断边缘成第二角度; 其中所述切割边缘处的所述第一多个层的极化分裂和所述切割边缘处的所述第二多个层的偏振分裂对于大约0和40度之间的任何第一和第二角度不超过约1%; 并且第二多个层的s阻带波长近似小于或等于小于截止边缘波长的切入边缘波长,其大约小于或等于s阻带波长 的第一多个层。

    Optical filter and fluorescence spectroscopy system incorporating the same
    28.
    发明授权
    Optical filter and fluorescence spectroscopy system incorporating the same 有权
    光学滤波器和包含其的荧光光谱系统

    公开(公告)号:US07411679B2

    公开(公告)日:2008-08-12

    申请号:US10953483

    申请日:2004-09-29

    CPC classification number: G01J3/4406 G02B5/285

    Abstract: An optical filter including at least one substrate and first and second thin-film interference filters disposed directly on the substrate. The interference filters include a plurality of hard coating thin film layers of alternating high and low index of refraction. A filter set capable of providing low image shift is also provided.

    Abstract translation: 一种滤光器,包括至少一个基板以及直接设置在该基板上的第一和第二薄膜干涉滤光片。 干涉滤光器包括交替的高折射率和低折射率的多个硬涂层薄膜层。 还提供了能够提供低图像偏移的滤光片组。

    OPTICAL TRANSMISSION FILTER WITH EXTENDED OUT-OF-BAND BLOCKING
    29.
    发明申请
    OPTICAL TRANSMISSION FILTER WITH EXTENDED OUT-OF-BAND BLOCKING 审中-公开
    光纤传输滤波器,带有扩展的带外阻塞

    公开(公告)号:US20080055584A1

    公开(公告)日:2008-03-06

    申请号:US11849026

    申请日:2007-08-31

    Abstract: In accordance with the invention, a filter is fabricated by a modified form of the process disclosed in U.S. Pat. No. 7,068,430. In particular, the method is modified to take into account the effect of absorption by filter material. The method is exemplified by the fabricating of an ultraviolet light transmission filter for transmitting a band within the range 230-320 nanometers. The resulting filter comprises plurality of hard-coating, thin-film layers of alternating high and low index of refraction. The improved filter provides high transmission, sharp edge slopes, and deep and extended out-of-band blocking. As compared with currently available filters, the filter provides transmission up to three or more times greater, edge slopes up to four times sharper, and deep extended out-of-band blocking extending further, even through the visible range.

    Abstract translation: 根据本发明,通过美国专利公开的方法的改进形式制造过滤器。 No. 7,068,430。 特别地,该方法被修改以考虑由过滤材料吸收的影响。 该方法的例子是制造用于传输在230-320纳米范围内的波段的紫外光透射滤波器。 所得到的过滤器包括交替的高折射率和低折射率的多个硬涂层薄膜层。 改进的滤波器提供高传输,尖锐的边缘斜率,以及深度和扩展的带外阻塞。 与目前可用的滤波器相比,滤波器提供的传输最多三倍或更多倍,边缘斜率高达四倍,并且深度延伸的带外阻挡进一步延伸,甚至在可见光范围内。

    Method of making high performance optical edge and notch filters and resulting products
    30.
    发明授权
    Method of making high performance optical edge and notch filters and resulting products 有权
    制造高性能光学边缘和陷波滤波器及产生的产品的方法

    公开(公告)号:US07123416B1

    公开(公告)日:2006-10-17

    申请号:US11248456

    申请日:2005-10-11

    Abstract: High performance optical edge and notch filters and methods of making the same are disclosed. The multi-layer, thin-film optical edge filters have an edge steepness greater than about 0.8% as measured by dividing (a) the edge width from the 50% transmission wavelength to the optical density 6 (“OD6”) wavelength by (b) the 50% transmission wavelength. The optical edge filters also have an average transmission above about 95%. The notch filters exhibit a blocking of OD>6, very high transmission (>90%) outside the notch(es), and a narrow notch bandwidth comparable to that of holographic notch filters. The methods for making such filters accurately determine when deposition of each layer of the filter should terminate.

    Abstract translation: 公开了高性能光学边缘和陷波滤波器及其制造方法。 通过将(a)从50%透射波长的边缘宽度分解为光密度6(“OD6”)波长的边缘宽度(b),多层薄膜光学边缘滤光器具有大于约0.8%的边缘陡度 )50%的透射波长。 光学边缘滤光片的平均透射率也高于约95%。 陷波滤波器表现出OD> 6的阻塞,凹口外的非常高的透射率(> 90%),以及与全息陷波滤波器相当的窄的陷波带宽。 制造这种过滤器的方法准确地确定过滤器的各层的沉积何时终止。

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