公开(公告)号：US08837550B2

公开(公告)日：2014-09-16

申请号：US13787399

申请日：2013-03-06

申请人： Ofer Shapira ,  Song-Liang Chua ,  Bo Zhen ,  Jeongwon Lee ,  Marin Soljacic

发明人： Ofer Shapira ,  Song-Liang Chua ,  Bo Zhen ,  Jeongwon Lee ,  Marin Soljacic

IPC分类号： H01S3/20 ,  H01S3/091

CPC分类号： H01S3/091 ,  H01S3/08 ,  H01S3/08031 ,  H01S3/092 ,  H01S3/0941 ,  H01S3/168 ,  H01S3/213 ,  H01S5/12 ,  H01S5/36

摘要： An organic dye laser produces a continuous-wave (cw) output without any moving parts (e.g., without using flowing dye streams or spinning discs of solid-state dye media to prevent photobleaching) and with a pump beam that is stationary with respect to the organic dye medium. The laser's resonant cavity, organic dye medium, and pump beam are configured to excite a lasing transition over a time scale longer than the associated decay lifetimes in the organic dye medium without photobleaching the organic dye medium. Because the organic dye medium does not photobleach when operating in this manner, it may be pumped continuously so as to emit a cw output beam. In some examples, operation in this manner lowers the lasing threshold (e.g., to only a few Watts per square centimeter), thereby facilitating electrical pumping for cw operation.

摘要翻译： 有机染料激光器产生没有任何移动部件的连续波（cw）输出（例如，不使用固态染料介质的流动染料流或旋转盘以防止漂白），并且使用相对于 有机染料介质。 激光器的谐振腔，有机染料介质和泵浦光束被配置成比有机染料介质中相关联的衰减寿命更长时间地激发激光跃迁，而无需漂白有机染料介质。 因为有机染料介质以这种方式操作时不会漂白，所以可以连续地泵送以发射cw输出光束。 在一些示例中，以这种方式的操作降低了激光阈值（例如，每平方厘米仅为几瓦特），从而便于cw操作的电泵送。

公开(公告)号：US20140126602A1

公开(公告)日：2014-05-08

申请号：US13787399

申请日：2013-03-06

申请人： Ofer Shapira ,  Song-Liang Chua ,  Bo Zhen ,  Jeongwon Lee ,  Marin Soljacic

发明人： Ofer Shapira ,  Song-Liang Chua ,  Bo Zhen ,  Jeongwon Lee ,  Marin Soljacic

IPC分类号： H01S3/091

CPC分类号： H01S3/091 ,  H01S3/08 ,  H01S3/08031 ,  H01S3/092 ,  H01S3/0941 ,  H01S3/168 ,  H01S3/213 ,  H01S5/12 ,  H01S5/36

摘要： An organic dye laser produces a continuous-wave (cw) output without any moving parts (e.g., without using flowing dye streams or spinning discs of solid-state dye media to prevent photobleaching) and with a pump beam that is stationary with respect to the organic dye medium. The laser's resonant cavity, organic dye medium, and pump beam are configured to excite a lasing transition over a time scale longer than the associated decay lifetimes in the organic dye medium without photobleaching the organic dye medium. Because the organic dye medium does not photobleach when operating in this manner, it may be pumped continuously so as to emit a cw output beam. In some examples, operation in this manner lowers the lasing threshold (e.g., to only a few Watts per square centimeter), thereby facilitating electrical pumping for cw operation.

摘要翻译： 有机染料激光器产生没有任何移动部件的连续波（cw）输出（例如，不使用固态染料介质的流动染料流或旋转盘以防止漂白），并且使用相对于 有机染料介质。 激光器的谐振腔，有机染料介质和泵浦光束被配置成比有机染料介质中相关联的衰减寿命更长时间地激发激光跃迁，而无需漂白有机染料介质。 因为有机染料介质以这种方式操作时不会漂白，所以可以连续地泵送以发射cw输出光束。 在一些示例中，以这种方式的操作降低了激光阈值（例如，每平方厘米仅为几瓦特），从而便于cw操作的电泵送。

公开(公告)号：US09927616B2

公开(公告)日：2018-03-27

申请号：US15237800

申请日：2016-08-16

申请人： Chia Wei Hsu ,  Wenjun Qiu ,  Bo Zhen ,  Ofer Shapira ,  Marin Soljacic

发明人： Chia Wei Hsu ,  Wenjun Qiu ,  Bo Zhen ,  Ofer Shapira ,  Marin Soljacic

IPC分类号： G02B27/01 ,  G02B5/02

CPC分类号： G02B27/0172 ,  B82Y20/00 ,  F21V9/08 ,  F21V9/12 ,  G02B5/0242 ,  G02B5/0278 ,  G02B2027/0112 ,  G02B2027/0145 ,  G02B2027/0147 ,  G02F1/0126 ,  G02F1/19 ,  G03B21/62 ,  G09F13/00 ,  Y10S977/773

摘要： Transparent displays enable many useful applications, including heads-up displays for cars and aircraft as well as displays on eyeglasses and glass windows. Unfortunately, transparent displays made of organic light-emitting diodes are typically expensive and opaque. Heads-up displays often require fixed light sources and have limited viewing angles. And transparent displays that use frequency conversion are typically energy inefficient. Conversely, the present transparent displays operate by scattering visible light from resonant nanoparticles with narrowband scattering cross sections and small absorption cross sections. More specifically, projecting an image onto a transparent screen doped with nanoparticles that selectively scatter light at the image wavelength(s) yields an image on the screen visible to an observer. Because the nanoparticles scatter light at only certain wavelengths, the screen is practically transparent under ambient light. Exemplary transparent scattering displays can be simple, inexpensive, scalable to large sizes, viewable over wide angular ranges, energy efficient, and transparent simultaneously.

公开(公告)号：US09458989B2

公开(公告)日：2016-10-04

申请号：US14143558

申请日：2013-12-30

申请人： Chia Wei Hsu ,  Wenjun Qiu ,  Bo Zhen ,  Ofer Shapira ,  Marin Soljacic

发明人： Chia Wei Hsu ,  Wenjun Qiu ,  Bo Zhen ,  Ofer Shapira ,  Marin Soljacic

IPC分类号： F21V9/12 ,  F21V9/08 ,  G09F13/00 ,  G02F1/01 ,  G02F1/19 ,  B82Y20/00

CPC分类号： G02B27/0172 ,  B82Y20/00 ,  F21V9/08 ,  F21V9/12 ,  G02B5/0242 ,  G02B5/0278 ,  G02B2027/0112 ,  G02B2027/0145 ,  G02B2027/0147 ,  G02F1/0126 ,  G02F1/19 ,  G03B21/62 ,  G09F13/00 ,  Y10S977/773

摘要： Disclosed herein are transparent color displays with nanoparticles made with nonlinear materials and/or designed to exhibit optical resonances. These nanoparticles are embedded in or hosted on a transparent substrate, such as a flexible piece of clear plastic or acrylic. Illuminating the nanoparticles with invisible light (e.g., infrared or ultraviolet light) causes them to emit visible light. For example, a rare-earth doped nanoparticle may emit visible light when illuminated simultaneoulsy with a first infrared beam at a first wavelength λ1 and a second infrared beam at a second wavelength λ2. And a frequency-doubling nanoparticle may emit visible light when illuminated with a single infrared beam at the nanoparticle's resonant frequency. Selectively addressing these nanoparticles with appropiately selected pump beams yields visible light emitted from the nanoparticles hosted by the transparent substrate in a desired pattern.

摘要翻译： 本文公开了具有由非线性材料制成的纳米颗粒和/或被设计为展现光学共振的透明彩色显示器。 这些纳米颗粒嵌入或托在透明基材上，例如透明塑料或丙烯酸的柔性片。 用不可见光（例如，红外或紫外光）照射纳米颗粒使它们发射可见光。 例如，当用第一波长λ1的第一红外光束和第二波长λ2的第二红外光束同时激发时，稀土掺杂的纳米粒子可以发射可见光。 当纳米颗粒的共振频率用单个红外光束照射时，倍频纳米颗粒可能会发出可见光。 用适当选择的泵浦光束选择性地寻址这些纳米颗粒，产生由透明衬底以期望的图案承载的纳米颗粒发射的可见光。

公开(公告)号：US20170184849A1

公开(公告)日：2017-06-29

申请号：US15237800

申请日：2016-08-16

申请人： Chia Wei Hsu ,  Wenjun Qiu ,  Bo Zhen ,  Ofer Shapira ,  Marin Soljacic

发明人： Chia Wei Hsu ,  Wenjun Qiu ,  Bo Zhen ,  Ofer Shapira ,  Marin Soljacic

IPC分类号： G02B27/01 ,  G02B5/02

CPC分类号： G02B27/0172 ,  B82Y20/00 ,  F21V9/08 ,  F21V9/12 ,  G02B5/0242 ,  G02B5/0278 ,  G02B2027/0112 ,  G02B2027/0145 ,  G02B2027/0147 ,  G02F1/0126 ,  G02F1/19 ,  G03B21/62 ,  G09F13/00 ,  Y10S977/773

摘要： Transparent displays enable many useful applications, including heads-up displays for cars and aircraft as well as displays on eyeglasses and glass windows. Unfortunately, transparent displays made of organic light-emitting diodes are typically expensive and opaque. Heads-up displays often require fixed light sources and have limited viewing angles. And transparent displays that use frequency conversion are typically energy inefficient. Conversely, the present transparent displays operate by scattering visible light from resonant nanoparticles with narrowband scattering cross sections and small absorption cross sections. More specifically, projecting an image onto a transparent screen doped with nanoparticles that selectively scatter light at the image wavelength(s) yields an image on the screen visible to an observer. Because the nanoparticles scatter light at only certain wavelengths, the screen is practically transparent under ambient light. Exemplary transparent scattering displays can be simple, inexpensive, scalable to large sizes, viewable over wide angular ranges, energy efficient, and transparent simultaneously.

公开(公告)号：US09335027B2

公开(公告)日：2016-05-10

申请号：US14067471

申请日：2013-10-30

申请人： Chia Wei Hsu ,  Wenjun Qiu ,  Bo Zhen ,  Ofer Shapira ,  Marin Soljacic

发明人： Chia Wei Hsu ,  Wenjun Qiu ,  Bo Zhen ,  Ofer Shapira ,  Marin Soljacic

IPC分类号： F21V9/12 ,  F21V9/08 ,  G09F13/00 ,  G02F1/01 ,  G02F1/19 ,  B82Y20/00

CPC分类号： G02B27/0172 ,  B82Y20/00 ,  F21V9/08 ,  F21V9/12 ,  G02B5/0242 ,  G02B5/0278 ,  G02B2027/0112 ,  G02B2027/0145 ,  G02B2027/0147 ,  G02F1/0126 ,  G02F1/19 ,  G03B21/62 ,  G09F13/00 ,  Y10S977/773

摘要： Transparent displays enable many useful applications, including heads-up displays for cars and aircraft as well as displays on eyeglasses and glass windows. Unfortunately, transparent displays made of organic light-emitting diodes are typically expensive and opaque. Heads-up displays often require fixed light sources and have limited viewing angles. And transparent displays that use frequency conversion are typically energy inefficient. Conversely, the present transparent displays operate by scattering visible light from resonant nanoparticles with narrowband scattering cross sections and small absorption cross sections. More specifically, projecting an image onto a transparent screen doped with nanoparticles that selectively scatter light at the image wavelength(s) yields an image on the screen visible to an observer. Because the nanoparticles scatter light at only certain wavelengths, the screen is practically transparent under ambient light. Exemplary transparent scattering displays can be simple, inexpensive, scalable to large sizes, viewable over wide angular ranges, energy efficient, and transparent simultaneously.

摘要翻译： 透明显示器可以实现许多有用的应用，包括汽车和飞机的单机显示器以及眼镜和玻璃窗上的显示器。 不幸的是，由有机发光二极管制成的透明显示器通常是昂贵且不透明的。 头戴式显示器通常需要固定光源并具有有限的视角。 而使用频率转换的透明显示器通常是无效率的。 相反，本发明的透明显示器通过从具有窄带散射横截面和小的吸收截面的共振纳米颗粒散射可见光来操作。 更具体地，将图像投影到掺杂有选择性地散射图像波长的光的纳米颗粒的透明屏幕上产生在观察者可见的屏幕上的图像。 因为纳米颗粒仅在某些波长处散射光，所以屏幕在环境光下实际上是透明的。 示例性的透明散射显示器可以是简单的，便宜的，可扩展的大尺寸，可在宽角度范围内观看，能量效率高，同时透明。

公开(公告)号：US20160216600A1

公开(公告)日：2016-07-28

申请号：US15090348

申请日：2016-04-04

申请人： Chia Wei Hsu ,  Wenjun Qiu ,  Bo Zhen ,  Ofer Shapira ,  Marin Soljacic

发明人： Chia Wei Hsu ,  Wenjun Qiu ,  Bo Zhen ,  Ofer Shapira ,  Marin Soljacic

IPC分类号： G03B21/62 ,  G02B5/02

CPC分类号： G02B27/0172 ,  B82Y20/00 ,  F21V9/08 ,  F21V9/12 ,  G02B5/0242 ,  G02B5/0278 ,  G02B2027/0112 ,  G02B2027/0145 ,  G02B2027/0147 ,  G02F1/0126 ,  G02F1/19 ,  G03B21/62 ,  G09F13/00 ,  Y10S977/773

摘要： Transparent displays enable many useful applications, including heads-up displays for cars and aircraft as well as displays on eyeglasses and glass windows. Unfortunately, transparent displays made of organic light-emitting diodes are typically expensive and opaque. Heads-up displays often require fixed light sources and have limited viewing angles. And transparent displays that use frequency conversion are typically energy inefficient. Conversely, the present transparent displays operate by scattering visible light from resonant nanoparticles with narrowband scattering cross sections and small absorption cross sections. More specifically, projecting an image onto a transparent screen doped with nanoparticles that selectively scatter light at the image wavelength(s) yields an image on the screen visible to an observer. Because the nanoparticles scatter light at only certain wavelengths, the screen is practically transparent under ambient light. Exemplary transparent scattering displays can be simple, inexpensive, scalable to large sizes, viewable over wide angular ranges, energy efficient, and transparent simultaneously.

摘要翻译： 透明显示器可以实现许多有用的应用，包括汽车和飞机的单机显示器以及眼镜和玻璃窗上的显示器。 不幸的是，由有机发光二极管制成的透明显示器通常是昂贵且不透明的。 头戴式显示器通常需要固定光源并具有有限的视角。 而使用频率转换的透明显示器通常是无效率的。 相反，本发明的透明显示器通过从具有窄带散射横截面和小的吸收截面的共振纳米颗粒散射可见光来操作。 更具体地，将图像投影到掺杂有选择性地散射图像波长的光的纳米颗粒的透明屏幕上产生在观察者可见的屏幕上的图像。 因为纳米颗粒仅在某些波长处散射光，所以屏幕在环境光下实际上是透明的。 示例性的透明散射显示器可以是简单的，便宜的，可扩展的大尺寸，可在宽角度范围内观看，能量效率高，同时透明。

公开(公告)号：US20170299149A1

公开(公告)日：2017-10-19

申请号：US15476199

申请日：2017-03-31

申请人： Marin SOLJACIC ,  Bo Zhen ,  Emma Anquillare ,  Yi Yang ,  Chia-Wei Hsu ,  John D. Joannopoulos

发明人： Marin SOLJACIC ,  Bo Zhen ,  Emma Anquillare ,  Yi Yang ,  Chia-Wei Hsu ,  John D. Joannopoulos

IPC分类号： F21V9/16

CPC分类号： G02B5/0226 ,  G02B5/00

摘要： A transparent display includes nanoparticles having wavelength-selective scattering (e.g., resonant scattering) to preferentially scatter light at one or more discrete wavelengths so as to create images. The nanoparticles transmit light at other wavelengths to maintain a high transparency of the display. The nanoparticles are disposed in proximity to a thin film, which can enhance the scattering the process by reflecting light back to the nanoparticles for re-scattering or increasing the quality factor of the resonant scattering.

公开(公告)号：US20170167977A1

公开(公告)日：2017-06-15

申请号：US15378782

申请日：2016-12-14

申请人： Nicholas Rivera ,  Ido Kaminer ,  Bo Zhen ,  Marin Soljacic ,  John Joannopoulos

发明人： Nicholas Rivera ,  Ido Kaminer ,  Bo Zhen ,  Marin Soljacic ,  John Joannopoulos

IPC分类号： G01N21/64

CPC分类号： G01N21/64 ,  G01N21/636 ,  G01N2021/1725

摘要： Ultra-thin conductors are employed to generate plasmon fields near the surface of the conductors. Emitters, such as atoms, molecules, quantum dots, or quantum wells, in the plasmon fields can emit and absorb light via transitions that are otherwise forbidden in the absence of the plasmon fields. Applications using these forbidden transitions include spectroscopy, organic light sources, and broadband light generation. For example, in a spectroscopic platform, an emitter is disposed in the plasmon fields to excite electronic transitions that are otherwise unexcitable. In organic light sources, plasmon fields quench excited triplet states, allowing fast singlet decay with the emission of light. In broadband light generation, strong two-plasmon spontaneous emission of emitters near ultrathin conductors is employed to produce a broad spectrum of light.

公开(公告)号：US20110252652A1

公开(公告)日：2011-10-20

申请号：US13140366

申请日：2008-12-17

申请人： Bo Zhen ,  Aigui Wang

发明人： Bo Zhen ,  Aigui Wang

IPC分类号： B27G19/04 ,  B27B9/02 ,  B23D45/16

CPC分类号： B27G19/10 ,  B27B9/04

摘要： A circular saw includes a base plate defining a base plane, a bevel bracket which supports a circular saw blade and is pivotally mounted on the base plate for tilting the blade, the bevel bracket having a pivoting axis which is parallel to the base plane and the blade and perpendicular to a rotational axis of the blade, and the blade partly extending through an opening forming in the base plate, and an anti-splinter device for preventing cutting chips from splintering. The anti-splinter device comprises a pair of slides mounted in the opening and forming a gap between their opposing ends, an outcoming section of the blade passing through the gap, and slide driving means associated with the bevel bracket and driving the slides to move in conformity with the tilting of the blade to allow the gap to accommodate the positional change of the outcoming section of the blade.

摘要翻译： 圆锯包括限定基面的基板，支撑圆锯片的斜撑支架，并且可枢转地安装在基板上用于倾斜叶片，该斜面支架具有平行于基面的枢转轴线和 叶片并且垂直于叶片的旋转轴线，并且叶片部分地延伸穿过形成在基板中的开口，以及防碎片装置，用于防止切屑碎裂。 防碎片装置包括安装在开口中并在其相对端之间形成间隙的一对滑块，通过间隙的叶片的出局部分和与斜面支架相关联的滑动驱动装置，并驱动滑块移动 与叶片的倾斜一致，以允许间隙适应叶片的输出部分的位置变化。