A VERTICAL CAVITY SURFACE EMITTING LASER DEVICE WITH ANGULAR-SELECTIVE FEEDBACK
    41.
    发明申请
    A VERTICAL CAVITY SURFACE EMITTING LASER DEVICE WITH ANGULAR-SELECTIVE FEEDBACK 审中-公开
    具有角度选择反馈的垂直腔表面发射激光器件

    公开(公告)号:WO2011021139A3

    公开(公告)日:2011-05-05

    申请号:PCT/IB2010053686

    申请日:2010-08-16

    Abstract: The present invention relates to a laser device comprising at least one large area VCSEL (101) and at least one optical feedback element (201, 301) providing an angular-selective feedback for laser radiation emitted from the laser. The angular-selective feedback is higher for at least one portion of laser radiation emitted at angles ? > 0 to the optical axis (601) of the laser than for laser radiation emitted on said optical axis (601). The invention also refers to a method of stabilizing a laser emission of a large area VCSEL in a desired angular distribution (501, 502). With the proposed device and method, the intensity distribution of a large area VCSEL can be stabilized in a desired shape, for example a ring shape.

    Abstract translation: 本发明涉及包括至少一个大面积VCSEL(101)和至少一个光学反馈元件(201,301)的激光器装置,所述光学反馈元件为从激光器发射的激光辐射提供角度选择性反馈。 角度选择性反馈对于以角度θ发射的激光辐射的至少一部分更高, >所述光轴(601)上发射的激光辐射。 本发明还涉及稳定大面积VCSEL在期望的角度分布(501,502)中的激光发射的方法。 利用所提出的装置和方法,大面积VCSEL的强度分布可以稳定在期望的形状,例如环形。

    ALL-SOLID-STATE UV LASER SYSTEM
    42.
    发明申请
    ALL-SOLID-STATE UV LASER SYSTEM 审中-公开
    全固态UV激光系统

    公开(公告)号:WO2006087650A3

    公开(公告)日:2007-07-12

    申请号:PCT/IB2006050390

    申请日:2006-02-07

    Abstract: The present invention relates to an all-solid state UV laser system comprising at least one semiconductor laser (10) in a VECSEL configuration. The gain structure (3) in this semiconductor laser (10) emits fundamental radiation in a wavelength range which can be frequency doubled to wavelengths in the UV region. The frequency doubling is achieved with a nonlinear optical crystal (6) for second harmonic generation arranged inside the extended cavity of the semiconductor laser (10). By electrically pumping of the semiconductor laser wavelengths below 200 nm can be efficiently generated with already known semiconductor materials like GaN. The proposed UV laser system is compact and can be fabricated and operated at low costs compared to UV excimer lasers.

    Abstract translation: 本发明涉及一种全固态UV激光系统,其包括VECSEL配置中的至少一个半导体激光器(10)。 该半导体激光器(10)中的增益结构(3)发射波长范围内的基本辐射,该波长范围可以被倍频到UV区域中的波长。 利用布置在半导体激光器(10)的扩展腔内部的用于二次谐波产生的非线性光学晶体(6)来实现倍频。 通过电泵浦半导体激光器,可以利用已知的诸如GaN的半导体材料有效地产生低于200nm的波长。 所提出的紫外激光系统是紧凑的,并且与UV准分子激光器相比可以以低成本制造和操作。

    SURFACE-EMITTING EXTERNAL CAVITY LASER DEVICE
    45.
    发明申请
    SURFACE-EMITTING EXTERNAL CAVITY LASER DEVICE 审中-公开
    表面发射外腔激光器

    公开(公告)号:WO2009004577A2

    公开(公告)日:2009-01-08

    申请号:PCT/IB2008052640

    申请日:2008-07-01

    CPC classification number: H01S5/183 H01S3/109 H01S5/0683 H01S5/141

    Abstract: A surface-emitting extended cavity laser with intracavity frequency conversion is provided with at least one surface-emitting laser element (1) with multiple layers to obtain laser light at a fundamental frequency, reflector means, spaced from the laser element (1) to form an external cavity (12), a frequency conversion device (3), arranged within the external cavity (12) to generate light at a second frequency and tuneable optical band-pass filter means, arranged within the external cavity (12) and detector means, where said optical band-pass filter means are tuneable upon a signal, which is obtained by the detector means to enable a frequency control at the fundamental frequency.

    Abstract translation: 具有腔内频率转换的表面发射扩展腔激光器具有至少一个具有多个层的表面发射激光器元件(1)以获得基频的激光,反射器装置,与激光器元件(1)隔开以形成 外腔(12),布置在外腔(12)内以产生第二频率的光的频率转换装置(3),以及布置在外腔(12)内的可调谐光学带通滤波器装置以及检测器装置 其中所述光学带通滤波器装置可根据由检测器装置获得的信号来调谐,以实现基频处的频率控制。

    HIGH-PRESSURE MERCURY VAPOR DISCHARGE LAMP AND METHOD OF MANUFACTURING A HIGH-PRESSURE MERCURY VAPOR DISCHARGE LAMP
    47.
    发明申请
    HIGH-PRESSURE MERCURY VAPOR DISCHARGE LAMP AND METHOD OF MANUFACTURING A HIGH-PRESSURE MERCURY VAPOR DISCHARGE LAMP 审中-公开
    高压汞蒸汽放电灯及制造高压汞蒸汽放电灯的方法

    公开(公告)号:WO2007077506A3

    公开(公告)日:2007-12-21

    申请号:PCT/IB2006054994

    申请日:2006-12-21

    CPC classification number: H01J61/822 H01J61/86

    Abstract: A high-pressure mercury vapor discharge lamp (1) comprising an envelope (2) of high temperature resistant material having a discharge vessel (3) and two electrodes (5, 6) extending from two seal portions (4) into the discharge vessel (3), the two electrodes having an electrode gap (de) smaller than or equal to 2.5 mm, preferably smaller than or equal to 1.5 mm, is described. The discharge vessel (3) contains a filling which essentially comprises the following substances: rare gas, oxygen, halogen consisting of chlorine, bromine, iodine, or a mixture thereof, as well as mercury in a quantity greater than or equal to 0.15 mg/mm3' The seal portions (4) have a cross-sectional area of between 6 mm2 and 20 mm2, preferably approximately 10 mm2.A method of manufacturing such a high-pressure mercury vapor discharge lamp (1) and a projector system for such a high-pressure mercury vapor discharge lamp (1) are also described.

    Abstract translation: 一种高压汞蒸汽放电灯(1),包括具有放电容器(3)的耐高温材料的外壳(2)和从两个密封部分(4)延伸到放电容器中的两个电极(5,6) 3),描述了具有小于或等于2.5mm,优选小于或等于1.5mm的电极间隙(de)的两个电极。 放电容器(3)含有填充物,其基本上包含以下物质:稀有气体,氧气,由氯,溴,碘或其混合物组成的卤素以及大于或等于0.15mg / mm3'密封部分(4)的横截面积在6mm 2和20mm 2之间,优选地大约为10mm2.一种制造这种高压汞蒸汽放电灯(1)的方法和用于这种 还描述了高压汞蒸气放电灯(1)。

    METHOD OF SHUTTING DOWN A HIGH PRESSURE DISCHARGE LAMP AND DRIVING UNIT FOR DRIVING A HIGH PRESSURE DISCHARGE LAMP
    49.
    发明申请
    METHOD OF SHUTTING DOWN A HIGH PRESSURE DISCHARGE LAMP AND DRIVING UNIT FOR DRIVING A HIGH PRESSURE DISCHARGE LAMP 审中-公开
    切断高压放电灯和驱动单元的方法,用于驱动高压放电灯

    公开(公告)号:WO2006136993A3

    公开(公告)日:2007-05-03

    申请号:PCT/IB2006051952

    申请日:2006-06-19

    CPC classification number: H05B41/3921 H05B41/2883 H05B41/2985

    Abstract: The invention describes a method of shutting down a high pressure discharge lamp (1) in which a pair of electrodes (2) are disposed in an arc tube (3). This method comprises the steps of reducing the lamp power (PA) to a reduced operation level that enables the maintenance of an arc discharge between the electrodes (2) in a transition state from a lighting state to an extinguished state; driving the lamp (1) at the reduced operation level such that that the lamp (1) cools down; monitoring the lamp voltage (U) during this lamp power reduction process and during driving of the lamp (1) at the reduced operation level with regard to a defined discharge process stability criteria and increasing the lamp power (PA) if the discharge process stability criterion is not satisfied; completely shutting down the lamp power (PA) after sufficient duration to allow the lamp (1) to cool down to a state in which the gas pressure is such that the lamp (1) could be reignited shortly after being extinguished. Moreover the invention describes an appropriate driving unit (7) for driving a high pressure discharge lamp (1) and an image rendering system (40), particularly a projector system, comprising such a driving unit (4).

    Abstract translation: 本发明描述了一种关闭其中一对电极(2)设置在电弧管(3)中的高压放电灯(1)的方法。 该方法包括以下步骤:将灯功率(PA)降低到能够维持从点亮状态到熄灭状态的过渡状态的电极(2)之间的电弧放电的降低的操作水平; 以降低的操作水平驱动灯(1),使得灯(1)冷却; 在该灯功率降低过程期间以及在关于限定的放电过程稳定性标准以降低的操作水平驱动灯(1)期间监视灯电压(U)并且如果放电过程稳定性标准则增加灯功率(PA) 不满意 在足够的持续时间之后完全关闭灯泡功率(PA),以允许灯(1)冷却到气体压力使得灯(1)在熄灭后不久可能重新点燃的状态。 此外,本发明描述了用于驱动高压放电灯(1)和图像渲染系统(40)的适当的驱动单元(7),特别是包括这种驱动单元(4)的投影仪系统。

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