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    Illumination system for optical modulators
    6.
    发明申请
    Illumination system for optical modulators 有权
    光学调制器照明系统

    公开(公告)号：US20080273557A1

    公开(公告)日：2008-11-06

    申请号：US11799565

    申请日：2007-05-02

    Applicant: David M. Bloom

    Inventor： David M. Bloom

    IPC: H01S3/098

    CPC classification number: G02B27/0927 ,  G02B19/0014 ,  G02B19/0057 ,  G03B21/2013 ,  G03B21/2033 ,  G03B21/208 ,  H01S5/005 ,  H01S5/14 ,  H01S5/4012 ,  H01S5/423 ,  H01S2301/206

    Abstract: A phase plate and lens modify light beams emitted by an array of lasers to form an efficient illumination source for a MEMS light modulator array. The phase of the electric field emitted by the lasers is modified such that the after passing through a lens the beam profile at the lens focal plane has an approximately rectangular shape appropriate for illuminating a light modulator array. The phase plate may be constructed from a glass plate with rectangular notches etched in it or with rectangular ridges formed on it. Furthermore a light source, such as a laser, may be coupled to an adiabatically tapered optical waveguide in which a phase adjusting block is introduced in analogy to notches in a bulk phase plate. Phase modified light beams output from the waveguide system have similar focusing properties to those passing through a bulk phase plate.

    Abstract translation: 相位板和透镜修改由激光阵列发射的光束，以形成用于MEMS光调制器阵列的高效照明源。 修改由激光器发射的电场的相位，使得在透镜之后，透镜焦平面处的光束轮廓具有适于照亮光调制器阵列的大致矩形形状。 相位板可以由其中蚀刻有矩形凹口的玻璃板或在其上形成的矩形脊构成。 此外，诸如激光器的光源可以耦合到绝热锥形光波导，其中类似于大块相中的凹口引入相位调整块。 从波导系统输出的相位改变的光束对于通过大块相位板的那些具有相似的聚焦特性。

    Micro-electromechanical light modulator with anamorphic optics
    7.
    发明授权
    Micro-electromechanical light modulator with anamorphic optics 有权
    具有变形光学元件的微机电光调制器

    公开(公告)号：US07446925B2

    公开(公告)日：2008-11-04

    申请号：US11472086

    申请日：2006-06-21

    Applicant: David M. Bloom

    Inventor： David M. Bloom

    IPC: G02F26/00

    CPC classification number: G02B13/08 ,  G02B26/06 ,  G02B26/0833

    Abstract: Micro-electromechanical light modulators are combined with anamorphic and contrast enhancing optical elements to form optical display engines. Linear MEMS arrays are suitable for the étendue of low divergence light sources while handling high optical power for brightness. The output of an optical engine is a line image which may be scanned to form a two-dimensional image.

    Abstract translation: 微机电光调制器与变形和对比度增强的光学元件组合以形成光学显示引擎。 线性MEMS阵列适用于低散射光源的低通量，同时处理高亮度的光学功率。 光学引擎的输出是可以被扫描以形成二维图像的行图像。

    Differential interferometric light modulator and image display system
    8.
    发明授权
    Differential interferometric light modulator and image display system 有权
    差分干涉光调制器和图像显示系统

    公开(公告)号：US07277216B2

    公开(公告)日：2007-10-02

    申请号：US11161452

    申请日：2005-08-03

    Applicant: David M. Bloom

    Inventor： David M. Bloom

    IPC: G02F1/01

    CPC classification number: G02F1/21 ,  G02B26/001 ,  G02B26/06 ,  G02B26/0841 ,  G02B27/281

    Abstract: A differential interferometric light modulator and image display system comprises a polarizing beam splitter, a polarization displacement device and a linear array of MEMS optical phase shifting devices to modulate a line image. The polarizing beam splitter acts as both the polarizer and the analyzer in an interferometer. The polarization displacement device divides polarized light from a polarizer into orthogonal polarization components which propagate parallel to one another. The MEMS optical phase shifting device array imparts a relative phase shift onto the polarization components and returns them to the polarization displacement device where they are recombined and sent to the analyzer. The MEMS optical phase shifting devices are electronically controlled and convert electronic image data into actual light modulation.

    Abstract translation: 差分干涉光调制器和图像显示系统包括偏振分束器，偏振位移装置和用于调制线图像的MEMS光学相移装置的线性阵列。 偏振分束器在干涉仪中既用作偏振器又用作分析器。 偏振位移装置将来自偏振器的偏振光分离成彼此平行传播的正交偏振分量。 MEMS光学相移装置阵列将相对相移施加到偏振分量上并将其返回到偏振位移装置，在那里它们被重组并发送到分析器。 MEMS光学相移装置是电子控制的，并将电子图像数据转换成实际的光调制。

    Achromatic optical modulators
    9.
    发明授权
    Achromatic optical modulators 有权
    消色差光调制器

    公开(公告)号：US06169624A

    公开(公告)日：2001-01-02

    申请号：US09372649

    申请日：1999-08-11

    Applicant: Asif A. Godil ,  David M. Bloom

    Inventor： Asif A. Godil ,  David M. Bloom

    IPC: G02B2600

    CPC classification number: G02B26/0808 ,  G02B5/1828 ,  G02B6/266 ,  G02B6/29352 ,  G02B6/3516 ,  G02B6/357 ,  G02B6/3584 ,  H01S5/005

    Abstract: Micromachined grating modulators which exhibit achromatic behavior are described. One embodiment includes narrow and wide ribbons suspended above a substrate and alternatingly interleaved with each other. Narrow and wide reflective surfaces are formed on the narrow and wide ribbons. Compensating reflective surfaces are formed in the gaps between and beneath the ribbons. The width of the ribbons as well as the width of the gaps and the compensating reflecting surfaces are designed so that incident optical beam can be modulated or attenuated in an achromatic fashion.

    Abstract translation: 描述了显示消色差行为的微加工光栅调制器。 一个实施例包括悬挂在衬底上并且彼此交替交错的窄而宽的带。 狭窄和宽的反光表面形成在窄而宽的色带上。 在色带之间和之下的间隙中形成补偿反射表面。 带的宽度以及间隙和补偿反射表面的宽度被设计成使得入射光束可以以无色方式被调制或衰减。

    Electrical contact probe for sampling high frequency electrical signals
    10.
    发明授权
    Electrical contact probe for sampling high frequency electrical signals 失效
    用于采样高频电信号的电接触探头

    公开(公告)号：US5847569A

    公开(公告)日：1998-12-08

    申请号：US694925

    申请日：1996-08-08

    Applicant: Francis Ho ,  David M. Bloom

    Inventor： Francis Ho ,  David M. Bloom

    IPC: G01R1/067 ,  G01R19/25 ,  G01R31/28

    CPC classification number: G01R1/06772 ,  G01R19/2509 ,  Y10S977/852

    Abstract: An all-electrical high frequency contact sampling probe provides sub-micron spatial resolution and picosecond or sub-picosecond temporal resolution. In a preferred embodiment, the probe is a monolithic integration of a sampling circuit with a cantilever and probe tip, where the distance between the circuit and the tip is less than a wavelength of interest in an RF signal �V.sub.RF !. The sampling circuit �44! uses Schottky diodes �SD! for sampling the RF signal �V.sub.RF ! from a device under test at a rate determined by local oscillator signals �50, 52!. An IF signal �V.sub.IF ! produced by the sampling probe is an equivalent time representation of the RF signal. Applications include testing signals at interior nodes of high speed integrated circuits.

    Abstract translation: 全电高频接点采样探头提供亚微米空间分辨率和皮秒或次皮秒时间分辨率。 在优选实施例中，探针是采样电路与悬臂和探针尖端的单片整合，其中电路和尖端之间的距离小于RF信号[VRF]中感兴趣的波长。 采样电路[44]使用肖特基二极管[SD]以本地振荡器信号[50,52]确定的速率从被测器件采样RF信号[VRF]。 由采样探针产生的IF信号[VIF]是RF信号的等效时间表示。 应用包括在高速集成电路的内部节点的测试信号。

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