公开(公告)号：US20070114360A1

公开(公告)日：2007-05-24

申请号：US11285695

申请日：2005-11-21

Applicant: Yeong Lim

Inventor： Yeong Lim

IPC: G01J1/32

CPC classification number: G01J1/32 ,  G01J1/4228 ,  G01J1/44 ,  G01J2001/0285 ,  G06F3/0317

Abstract: Advantage is taken of the fact that in optical navigation devices it is possible to measure the intensity of light impacting the pixel array of photo-diodes. Based upon such an intensity determination, a feedback signal is used to reduce the intensity of the light to a point where it is equal to or less than a predetermined value. In one embodiment, the discharge rate of a capacitive power supply is used to determine the intensity of the light source impacting the pixels. When the discharge rate is faster than a given amount the inference is that the light intensity is too great and power is reduced to the light source to reduce the intensity.

Abstract translation: 优点在于，在光学导航装置中，可以测量影响光电二极管的像素阵列的光的强度。 基于这样的强度确定，使用反馈信号将光的强度降低到等于或小于预定值的点。 在一个实施例中，电容性电源的放电速率用于确定影响像素的光源的强度。 当放电速率比给定量更快时，推断光强度太大并且功率降低到光源以降低强度。

公开(公告)号：US07177516B1

公开(公告)日：2007-02-13

申请号：US07566695

申请日：1990-07-31

Applicant: Byong H. Ahn

Inventor： Byong H. Ahn

IPC: G02F1/01

CPC classification number: G02F1/0147 ,  G01J1/04 ,  G01J1/0418 ,  G01J2001/0285 ,  G02F2201/38 ,  G02F2201/50 ,  G02F2203/52 ,  H01S3/005

Abstract: Two embodiments of a multilayered low energy optical power limiter device are disclosed which protect thermal sensors against laser threats in the far infrared spectral region. One limiter device has multiple layers in order from the incoming radiation side an antireflective coating layer, a window substrate layer, a layer of chalcogenide, a germanium substrate layer, a layer of vanadium dioxide (VO2), a window substrate, and an antireflective coating layer. As incoming radiation energy increases, the VO2 layer will heat up and change from an unswitched transmissive state to a switched reflective state. The excessive energy past the switched state is reflected back through the germanium and chalcogenide layer and is absorbed quickly therein so that these layers also heat up quickly and are switched almost simultaneously with the VO2 layer to provide high optical density at a low switching threshold temperature with high damage threshold. The second embodiment further adds a second VO2 layer between the input antireflective coating layer and window substrate layers to reflect high radiation energy immediately.

Abstract translation: 公开了一种多层低能量光功率限制器装置的两个实施例，其保护热传感器免受远红外光谱区域中的激光威胁。 一个限幅器装置从进入的辐射侧依次具有多层，一个抗反射涂层，一个窗基底层，一个硫族化物层，一个锗基底层，一层二氧化钒（VO 2 O 2） 窗基材和抗反射涂层。 随着入射辐射能量的增加，VO 2层将会升温并从未切换的透射状态转变为开关反射状态。 经过开关状态的过量能量通过锗和硫族化物层被反射回来并被快速吸收，使得这些层也快速加热并且几乎与VO 2层同时地被切换以提供高光学 密度在低切换阈值温度下具有高损伤阈值。 第二实施例进一步在输入抗反射涂层和窗基板层之间添加第二VO 2层以立即反射高辐射能。

公开(公告)号：US20060266920A1

公开(公告)日：2006-11-30

申请号：US11140890

申请日：2005-05-31

Applicant: David Pileri ,  Harry Boretz ,  Yan Tam

Inventor： David Pileri ,  Harry Boretz ,  Yan Tam

IPC: G01J1/32

CPC classification number: G01J1/02 ,  B23K26/702 ,  B23K26/705 ,  F16P3/144 ,  G01J2001/0285

Abstract: A system and method for errant laser beam detection are provided for effectively detecting small coating failures in a cost effective and robust manner. In one embodiment, a detection system includes a continuity circuit on a printed circuit board (PCB) having metal (e.g., copper) traces which are designed to burn through if an errant beam strikes them. The traces are sized and patterned appropriately to sense a minimum subaperture size.

Abstract translation: 提供了一种用于错误激光束检测的系统和方法，用于以成本有效和鲁棒的方式有效地检测小涂层故障。 在一个实施例中，检测系统包括在具有金属（例如铜）迹线的印刷电路板（PCB）上的连续性电路，其被设计为如果错误的光束撞击它们则烧穿。 迹线的尺寸和图案被适当地设计以感测最小的子孔径尺寸。

公开(公告)号：US20040179560A1

公开(公告)日：2004-09-16

申请号：US10739961

申请日：2003-12-17

Inventor： Palash P. Das ,  Khurshid Ahmed ,  Gregory Francis ,  Holger Glatzel ,  Alexei Lukashev ,  Jeremy Tyler ,  R. Kyle Webb

IPC: H01S003/10

CPC classification number: B23K26/12 ,  B23K26/128 ,  B23K26/705 ,  G01J1/04 ,  G01J1/0418 ,  G01J1/4257 ,  G01J2001/0285 ,  G03F7/70025 ,  G03F7/70041 ,  G03F7/7055 ,  G03F7/70575 ,  G03F7/70933 ,  H01S3/005 ,  H01S3/0057 ,  H01S3/0071 ,  H01S3/02 ,  H01S3/03 ,  H01S3/036 ,  H01S3/038 ,  H01S3/0385 ,  H01S3/0404 ,  H01S3/041 ,  H01S3/08004 ,  H01S3/08009 ,  H01S3/0943 ,  H01S3/097 ,  H01S3/09705 ,  H01S3/0971 ,  H01S3/0975 ,  H01S3/104 ,  H01S3/105 ,  H01S3/1305 ,  H01S3/134 ,  H01S3/139 ,  H01S3/22 ,  H01S3/2207 ,  H01S3/223 ,  H01S3/225 ,  H01S3/2251 ,  H01S3/2256 ,  H01S3/2258 ,  H01S3/2333 ,  H01S3/2366

Abstract: A beam delivery unit and method of delivering a laser beam from a lasr light source for excimer or molecular fluorine gas discharge laser systems in the DUV and smaller wavelengths is disclosed, which may comprise: a beam delivery enclosure defining an output laser light pulse beam delivery path from an output of a gas discharge laser to an input of a working apparatus employing the light contained in the output laser light pulse beam; a purge mechanism operatively connected to the beam delivery enclosure; an in-situ beam parameter monitor and adjustment mechanism within the enclosure, comprising a retractable beam redirecting optic; a beam analysis mechanism external to the enclosure; and, a retraction mechanism within the enclosure and operable from outside the enclosure and operative to move the retractable beam redirecting optic from a retracted position out of the beam path to an operative position in the beam path. The BDU may also include a beam attenuator unit contained within the enclosure adjustably mounted within the enclosure for positioning within the beam delivery path. The BDU may have at least two enclosure isolation mechanisms comprising a first enclosure isolation mechanism on a first side of the enclosure from the at least one optic module and a second enclosure isolation mechanism on a second side of the enclosure from the at least one optic module, each respective enclosure isolation mechanism comprising a flapper valve having a metal to metal seating mechanism and a locking pin assembly. A precision offset ratchet driver operative to manipulate actuator mechanisms in difficult to reach locations may be provided. An external kinematic alignment tool may be provided. A method of contamination control for a BDU is disclosed comprising selection of allowable materials and fabrication processes.

Abstract translation: 公开了一种光束传送单元和从用于DUV和更小波长的准分子或分子氟气体放电激光系统的激光光源输送激光束的方法，其可以包括：限定输出激光光脉冲束传送 从气体放电激光器的输出到使用包含在输出激光脉冲光束中的光的工作装置的输入的路径; 可操作地连接到射束输送罩的清洗机构; 壳体内的原位光束参数监视和调节机构，包括可伸缩光束重定向光学元件; 外壳外部的光束分析机构; 以及在所述外壳内的收缩机构，并且可从所述外壳的外部操作，并且可操作地将所述可伸缩的束重定向光学器件从缩回位置移出所述光束路径到所述光束路径中的操作位置。 BDU还可以包括容纳在可调节地安装在外壳内的外壳内的光束衰减器单元，用于定位在光束输送路径内。 BDU可以具有至少两个机壳隔离机构，该机构包括位于外壳的第一侧面上的至少一个光学模块的第一外壳隔离机构和位于外壳的第二侧的第二外壳隔离机构，所述第二外壳隔离机构与所述至少一个光学模块 每个相应的外壳隔离机构包括具有金属对金属安置机构和锁销组件的挡板阀。 可以提供操作来操作难以到达位置的致动器机构的精密偏移棘轮驱动器。 可以提供外部运动学对准工具。 公开了一种用于BDU的污染控制方法，包括选择允许的材料和制造工艺。

公开(公告)号：US06785032B1

公开(公告)日：2004-08-31

申请号：US07225180

申请日：1988-07-28

Applicant: Charles Elwood Le Mere

Inventor： Charles Elwood Le Mere

IPC: G02B2602

CPC classification number: G01J1/26 ,  G01J1/04 ,  G01J1/0403 ,  G01J1/0418 ,  G01J1/0433 ,  G01J1/044 ,  G01J1/0488 ,  G01J3/02 ,  G01J3/0213 ,  G01J3/28 ,  G01J2001/0285 ,  G01S7/495

Abstract: A laser countermeasure system uses a fluence trigger along an optical path between an entrance and a detector at an output. The fluence trigger detects laser radiation and blocks the passage thereof beyond the trigger. A shutter at the front end can be operated in response to detection by the trigger. A threat analyzer also receives radiation and automatically breaks the radiation into spectral components for correlation to appropriate filters to remove the harmful coherent radiation. A tunable filter and/or a filter wheel is interposed along the optical path and is controlled by an adjustment system, illustratively servo controls. The adjustment system responds to the threat analyzer to select and interpose automatically the proper filter(s) to attenuate or block the coherent radiation. Thereafter, the fluence trigger and/or shutter operate to restore full operation along the optical path. The system and method provide look-through capability and mission continuity in the face of unknown laser threats.

Abstract translation: 激光对策系统在输出处使用沿着入口和检测器之间的光路的注量触发器。 注量触发器检测激光辐射并阻止其超过触发器的通过。 响应于触发器的检测，前端的快门可以被操作。 威胁分析仪还接收辐射，并自动将辐射分解为光谱分量，以便与适当的滤光片相关，以去除有害的相干辐射。 可调谐滤光器和/或滤光轮沿光路插入并由调节系统控制，例如伺服控制。 调整系统响应威胁分析仪自动选择和插入适当的滤波器以衰减或阻挡相干辐射。 此后，注量触发器和/或快门操作以恢复沿着光路的全部操作。 面对未知的激光威胁，该系统和方法提供了透视能力和任务连续性。

公开(公告)号：US5382799A

公开(公告)日：1995-01-17

申请号：US170083

申请日：1993-12-14

Applicant: Joe T. May

Inventor： Joe T. May

IPC: G01J1/02 ,  G01J1/04 ,  G01J1/42 ,  G01J1/00

CPC classification number: G01J1/02 ,  G01J1/0247 ,  G01J1/0271 ,  G01J1/04 ,  G01J1/0474 ,  G01J1/429 ,  G01J2001/0285

Abstract: A self-contained, electro-optic instrument measures and displays the intensity emitted by an ultraviolet (UV) light source. The instrument is a portable, battery-operated device which has the size and shape of a flashlight. The measurement head receives various light guide adapters to provide a proper fit for a light guide of the UV spot curing system being used. Alternatively, the measurement head may be fitted with a wide angle lens to receive UV light for environment safety testing. In operation with a spot curing system, the instrument is gripped in one hand while the light guide is inserted in the adapter in the measurement head with the other hand. Once the spot curing system's light guide is inserted, a start switch on the body of the instrument is depressed and a measurement is taken. When the start switch is released, the measurement temporarily stored and displayed on a display, such as a liquid crystal display (LCD). Operation is similar for environmental safety testing except the instrument is simply pointed in a direction where the UV light is to be measured.

Abstract translation: 独立的电光仪器测量并显示由紫外线（UV）光源发射的强度。 该仪器是一种便携式，电池供电的装置，具有手电筒的尺寸和形状。 测量头接收各种导光适配器，以便为所使用的UV斑固化系统的光导提供适当的配合。 或者，测量头可以配有广角镜头以接收用于环境安全测试的UV光。 在使用点固化系统操作时，用一只手握住仪器，另一只手将导光体插入测量头中的适配器中。 一旦点固化系统的光导被插入，仪器主体上的启动开关被按下并进行测量。 当启动开关被释放时，测量值暂时存储并显示在诸如液晶显示器（LCD）的显示器上。 操作与环境安全测试类似，只是仪器只是指向要测量紫外光的方向。

公开(公告)号：US5225884A

公开(公告)日：1993-07-06

申请号：US716667

申请日：1991-06-05

Applicant: Steven A. Stark ,  David Shen

Inventor： Steven A. Stark ,  David Shen

IPC: G01J11/00 ,  G01J1/02 ,  G01J1/18 ,  G01J1/42

CPC classification number: G01J1/02 ,  G01J1/0271 ,  G01J1/42 ,  G01J1/4257 ,  G01J11/00 ,  G01J2001/0285 ,  G01J2001/184 ,  G01J2001/4238

Abstract: System and method for analyzing pulses from an excimer laser by measuring light energy rather than heat energy. The output of the laser is monitored with a photodetector to provide electrical current pulses corresponding to the intensity of the light in individual ones of the laser pulses. The current pulses are integrated to provide voltages corresponding to the light energy of the laser pulses, and the voltages are converted to digital signals. The digital signals are accumulated during the exposure period to determine the total light energy of the pulses during that period and also during a shorter interval of time during the exposure period. The light energy for the interval is divided by the length of the interval to determine the average intensity of the pulses during the interval. Displays are provided for the light energy and the intensity of the pulses, as well as the length of the exposure period.

Abstract translation: 通过测量光能而不是热能来分析来自准分子激光器的脉冲的系统和方法。 用光电检测器监测激光器的输出，以提供与各个激光脉冲中的光的强度对应的电流脉冲。 电流脉冲被积分以提供与激光脉冲的光能相对应的电压，并将电压转换成数字信号。 数字信号在曝光期间被累积，以确定该期间脉冲的总光能以及曝光期间较短的时间间隔期间的总光能。 将间隔的光能除以间隔的长度，以确定间隔期间脉冲的平均强度。 提供了用于光能和脉冲强度的显示以及曝光周期的长度。

公开(公告)号：US4487478A

公开(公告)日：1984-12-11

申请号：US347349

申请日：1982-02-09

Applicant: Robert E. Jackson

Inventor： Robert E. Jackson

IPC: G01J1/02 ,  H01S3/00 ,  G02B5/26

CPC classification number: H01S3/005 ,  G01J2001/0285

Abstract: A laser protection device comprising a plurality of edge filters for receiving an incident beam and progressively separating the desired optical energy from the laser energy contained in the beam. The first edge filter receives the incident beam and provides a first reflected beam and a first transmitted beam. One of the beams provided by the edge filter comprises a relatively high percent of desired optical energy and the other of the beams provided by the edge filter comprises a relatively high percentage of laser energy. The other edge filters are arranged in series to similarly progressively reduce the percentage of laser energy contained in the beam.

Abstract translation: 一种激光保护装置，包括多个边缘滤波器，用于接收入射光束并逐渐地将期望的光能与包含在光束中的激光能量分离。 第一边缘滤波器接收入射光束并提供第一反射光束和第一透射光束。 由边缘滤波器提供的一个光束包括相对高百分比的期望的光能，并且由边缘滤光器提供的另一个光束包括相对高百分比的激光能量。 其他边缘滤波器被串联布置以类似地逐渐降低包含在光束中的激光能量的百分比。

公开(公告)号：US3267807A

公开(公告)日：1966-08-23

申请号：US35137264

申请日：1964-03-12

Applicant: AMERICAN OPTICAL CORP

Inventor： SWOPE CHARLES H ,  KOESTER CHARLES J

IPC: A61F9/02 ,  B23K26/03 ,  G01J1/02

CPC classification number: A61F9/022 ,  G01J2001/0285