Image projector and method of operating same
    1.
    发明申请
    Image projector and method of operating same 失效
    图像投影机及其操作方法

    公开(公告)号:US20050077841A1

    公开(公告)日:2005-04-14

    申请号:US10500506

    申请日:2002-12-18

    摘要: The invention relates to an image projector with a High-Intensity-Discharge HID lamp (112) and a method of operating it. Such lamps have the disadvantage that their voltaic arc jumps back and forth between different positions at unforeseeable times during operation. This so-called arc jumping has the effect of changing the brightness, i.e. the overall brightness and/or the brightness distribution of the light emitted by the HID lamp (112). For the viewer of an image projected with such a projector, this effect appears as a jolt of this projected image. To avoid such effects for the viewer, it is first proposed according to the invention that changes in the brightness of the light in the image projector's beam path are detected. As soon as a change in brightness caused by an arc jump has been detected, this brightness is reset to a brightness detected at a moment t-2 before the arc jump, in order subsequently to convert it during a predetermined time interval T to the brightness resulting from the arc jump. This resetting must occur so soon after the arc jump, and the conversion so slowly, that the changes in the brightness of the light incident on a picture screen device (118) resulting from the arc jump, the reset, and the conversion are not perceptible to the human eye.

    摘要翻译: 本发明涉及具有高强度放电HID灯(112)的图像投影仪及其操作方法。 这样的灯具有这样的缺点:它们的电弧在操作期间在不可预见的时间在不同位置之间来回跳动。 这种所谓的电弧跳跃具有改变由HID灯(112)发射的光的亮度,即整体亮度和/或亮度分布的效果。 对于使用这种投影机投影的图像的观看者,此效果显示为该投影图像的颠簸。 为了避免对于观看者的这种影响,首先提出根据本发明,检测到图像投影仪的光束路径中的光的亮度的变化。 一旦检测到由电弧跳跃引起的亮度变化,则该亮度被重置为在电弧跳跃之前的时刻t-2处检测到的亮度,以便随后在预定时间间隔T期间将其转换为亮度 导致电弧跳跃。 这种复位必须在电弧跳跃之后不久就发生,并且转换如此缓慢,使得由于电弧跳跃,复位和转换而导致的图像屏幕设备(118)的光的亮度变化是不可察觉的 到人眼。

    Operation of a discharge lamp
    2.
    发明申请
    Operation of a discharge lamp 失效
    放电灯的操作

    公开(公告)号:US20060012309A1

    公开(公告)日:2006-01-19

    申请号:US10518258

    申请日:2003-06-16

    IPC分类号: H01J13/32

    摘要: The invention relates to a method for operating a discharge lamp 11 including two electrodes 12,13. The method comprises applying to the electrodes an alternating current ILamp. In order to improve the performance of the lamp and to increase the life time of the lamp, it is proposed that the alternating current has a direct current component DC for compensating a temperature difference between the two electrodes. The direct current component is selected more specifically such that a first electrode, which is expected to have a lower temperature than the second electrode, functions as anode for the direct current component, while the second electrode functions as cathode for the direct current component. The invention relates equally to an electronic circuit and to a software program for operating a discharge lamp correspondingly, as well as to a lighting system comprising a discharge lamp and means for operating this discharge lamp correspondingly.

    摘要翻译: 本发明涉及一种用于操作包括两个电极12,13的放电灯11的方法。 该方法包括向电极施加交流电灯泡。 为了提高灯的性能并且增加灯的寿命,提出交流电具有用于补偿两个电极之间的温度差的直流分量DC。 更具体地选择直流分量,使得期望具有比第二电极低的温度的第一电极用作直流分量的阳极,而第二电极用作直流分量的阴极。 本发明同样涉及电子电路和用于相应地操作放电灯的软件程序,以及包括放电灯的照明系统和用于相应地操作该放电灯的装置。

    Projection system
    3.
    发明申请
    Projection system 失效
    投影系统

    公开(公告)号:US20060023304A1

    公开(公告)日:2006-02-02

    申请号:US10528935

    申请日:2003-09-18

    IPC分类号: G03B21/56

    摘要: A projection system for image reproduction by means of at least one lamp (10) as well as a sensor (30) for generating a sensor signal for monitoring changes in the luminous flux generated by said at least one lamp (10) and for compensating these changes through a suitable control of the image reproduction is described. The projection system comprises a device (31; 32; 36, 37) for eliminating substantially periodic interference components from the sensor signal generated by the at least one sensor (30; 301, 302, 303). These interference components may be generated by an optical component such as in particular a color modulator (12) of the projection system. The invention thus renders possible an at least substantially interference-free compensation of fluctuations in the luminous flux generated by the lamp (10), for example owing to an unstable arc discharge, also in those color systems in which the positioning of the sensor (30) in the projection system is non-critical.

    摘要翻译: 一种用于通过至少一个灯(10)进行图像再现的投影系统以及用于产生用于监测所述至少一个灯(10)产生的光束变化的传感器信号的传感器(30),并用于补偿这些 描述通过图像再现的适当控制的改变。 投影系统包括用于从由至少一个传感器(30; 301,302,303)产生的传感器信号中消除基本上周期性的干扰分量的装置(31; 32; 36,37)。 这些干扰分量可以由诸如特别是投影系统的颜色调制器(12)的光学部件产生。 因此,本发明使得例如由于不稳定的电弧放电使得由灯(10)产生的光通量的波动至少基本上无干扰地补偿,在传感器(30)的定位的那些颜色系统中 )在投影系统中是非关键的。

    Projection system
    4.
    发明申请
    Projection system 审中-公开
    投影系统

    公开(公告)号:US20060145064A1

    公开(公告)日:2006-07-06

    申请号:US10560633

    申请日:2004-06-03

    IPC分类号: G01J1/00

    CPC分类号: H05B39/042 Y02B20/14

    摘要: A projection system for image display with at least one lamp (1), with at least one sensor (5) for detecting changes in the luminous flux delivered by said at least one lamp (1) and for compensating these changes through a suitable control of the image display and/or the lamp is described. The projection system is remarkable in that a light integrator (3) is provided, into which at least a portion of the light provided by the lamp (1) is coupled in, while the sensor (5) is optically coupled to the light integrator (3) such that it detects the luminous intensity present in the light integrator (3). Since this luminous intensity is very homogeneous because of the multiple reflections and is not influenced by brightness fluctuations caused by an optical component such as, for example, a color modulator (4), a very accurate compensation of changes in the luminous flux generated by the lamp (1) is made possible by the sensor signal.

    摘要翻译: 一种用于具有至少一个灯(1)的图像显示的投影系统,具有用于检测由所述至少一个灯(1)传送的光束的变化的至少一个传感器(5),并且用于通过适当的控制来补偿这些变化 描述图像显示和/或灯。 投影系统是显着的,其中提供光积分器(3),其中由灯(1)提供的光的至少一部分耦合到光积分器(3)中,同时传感器(5)光学耦合到光积分器 3),以便检测光积分器(3)中存在的发光强度。 由于这种发光强度由于多重反射而非常均匀,并且不受由诸如色调制器(4)的光学部件引起的亮度波动的影响,所以由 灯(1)可以通过传感器信号实现。

    Image projector with light source modulation according to image signal
    5.
    发明申请
    Image projector with light source modulation according to image signal 审中-公开
    图像投影机根据图像信号进行光源调制

    公开(公告)号:US20050185149A1

    公开(公告)日:2005-08-25

    申请号:US10509410

    申请日:2003-03-24

    CPC分类号: H04N9/3117

    摘要: The invention relates to a method for enhancing brightness and contrast in images provided by a projection-based presenter utilising a display panel (5) illuminated by at least one scrolling band of light and a lamp (3) as a light source for said at least one scrolling band of light. In order to enable such an enhancement, it is proposed that the method comprises modulating the light output of the lamp (3) between different scrolling positions in a way that a higher light intensity is supplied by said lamp (3) when parts of the display panel (5) currently representing brighter parts of a respective image are illuminated by said at least one scrolling band of light than when parts of the display panel (5) currently representing less bright parts of said image are illuminated by said at least one scrolling band of light. The invention relates equally to a corresponding projector, and to an image processor and a regulation and controlling system for such a projector.

    摘要翻译: 本发明涉及一种用于增强由基于投影的呈现者所提供的图像中的亮度和对比度的方法,该投影仪使用由至少一个滚动带光照射的显示面板(5)和作为所述至少一个的光源的灯(3) 一个滚动的光带。 为了实现这样的增强,提出了该方法包括在不同的滚动位置之间调制灯(3)的光输出,使得当显示器的部分时,所述灯(3)提供较高的光强度 目前表示相应图像的更亮部分的面板(5)被所述至少一个滚动光带照亮,而不是当前表示所述图像的较亮部分的显示面板(5)的部分被所述至少一个滚动带 的光。 本发明同样涉及相应的投影仪,以及涉及这种投影仪的图像处理器和调节和控制系统。

    Circuit and method for operation of a gas discharge lamp
    6.
    发明申请
    Circuit and method for operation of a gas discharge lamp 失效
    气体放电灯操作的电路和方法

    公开(公告)号:US20060238141A1

    公开(公告)日:2006-10-26

    申请号:US10558721

    申请日:2004-05-25

    IPC分类号: H05B41/36

    CPC分类号: H05B41/2882

    摘要: The invention relates to a circuit (1) and a method for operation of a gas discharge lamp (3) with a switching transformer (2), which switching transformer comprises a switch (22), a converter inductor (24) and a control means (27) in a control loop (33) for measuring a lamp voltage and setting a desired power. In accordance with the invention, the switching transformer (2) comprises a second control loop (80). By means of the second control loop the switching transformer is adjustable to individual lamp conditions.

    摘要翻译: 本发明涉及一种用开关变压器(2)操作气体放电灯(3)的电路(1)和方法,该开关变压器包括开关(22),转换电感器(24)和控制装置 (27),用于测量灯电压并设定所需功率的控制回路(33)。 根据本发明,开关变压器(2)包括第二控制回路(80)。 通过第二个控制回路,开关变压器可以调节到单独的灯条件。

    Electronic circuit and method of supplying energy to a high-pressure gas-discharge lamp
    7.
    发明申请
    Electronic circuit and method of supplying energy to a high-pressure gas-discharge lamp 失效
    电子电路及向高压气体放电灯供电的方法

    公开(公告)号:US20050225262A1

    公开(公告)日:2005-10-13

    申请号:US10506271

    申请日:2003-02-26

    CPC分类号: H05B41/2923

    摘要: The invention relates to an electronic circuit and a method of supplying energy to a high-pressure gas-discharge lamp H, 65, 75. The electronic circuit comprises a line-supply input section 62, 72 to receive and convert an a.c. voltage from an a.c. line-supply system 61, 71, an energy storage means 63, 73 to store the energy put out by the line-supply input section 62, 72 and a lamp-current regulating unit 64, 74 that is supplied with an input voltage U1 by the line-supply input section 62, 72 via the energy storage means 63, 73 and that makes available a lamp current I2 for a high-pressure gas-discharge lamp II, 65, 75. To make it possible for the energy storage means 63, 73 to be particularly small, it is proposed that the lamp-current regulating unit 64, 74 have a power section L, D, C, S, A1, A2, K having a transconductive property. If there is a drop in the input voltage U1, this property then automatically produces a reduction in the lamp current I2 made available to a high-pressure gas-discharge lamp 65, 75, H. This ensures a particularly fast adjustment to voltage fluctuations. The invention also relates to a corresponding method.

    摘要翻译: 本发明涉及电子电路和向高压气体放电灯H,65,75提供能量的方法。 电子电路包括线路供电输入部分62,72,用于接收和转换交流电源。 电压来自a.c. 线路供电系统61,71,用于存储由线路供电输入部分62,72所放出的能量的能量存储装置63,73和提供有输入电压U 1的灯电流调节单元64,74 经由能量存储装置63,73的线路供电输入部分62,72,并且为高压气体放电灯II,65,75提供灯电流I 2。 为了使能量存储装置63,73特别小,建议灯电流调节单元64,74具有功率部分L,D,C,S,A 1,A 2,K,具有 导电性能。 如果输入电压U 1有下降,则该特性自动产生可用于高压气体放电灯65,75,H的灯电流I 2的降低。这确保了对电压的特别快速的调整 波动 本发明还涉及相应的方法。

    Colored and white light generating lighting device
    8.
    发明授权
    Colored and white light generating lighting device 有权
    彩色和白色发光照明装置

    公开(公告)号:US08523924B2

    公开(公告)日:2013-09-03

    申请号:US12302314

    申请日:2007-05-22

    IPC分类号: A61N5/06

    摘要: A lighting device for generating colored and white light. According to the invention the lighting device comprises at least one light source (1, 4) emitting blue or ultraviolet light and a color conversion unit (2, 5) for converting said blue or ultraviolet light into visible light comprising at least two sections (2a, 2b, 2c, 6a, 6b, 6c, 6d), at least one section (2c, 6d) of which being a transparent or translucent color converting section, said color conversion unit (2, 5) being arranged for alternately illuminating said at least two sections (2a, 2b, 2c, 6a, 6b, 6c, 6d) with said blue or ultraviolet light, said at least one color converting section containing luminescent material, wherein said luminescent material is a luminescent organic dye in a polymer matrix or a crystalline inorganic luminescent material.

    摘要翻译: 用于产生彩色和白色光的照明装置。 根据本发明,照明装置包括发射蓝色或紫外光的至少一个光源(1,4)和用于将所述蓝色或紫外光转换成可见光的颜色转换单元(2,5),其包括至少两个部分(2a ,2b,2c,6a,6b,6c,6d),其中至少一个部分(2c,6d)是透明或半透明的颜色转换部分,所述颜色转换单元(2,5)被布置成交替地照亮所述 具有所述蓝色或紫外光的至少两个部分(2a,2b,2c,6a,6b,6c,6d),所述至少一个颜色转换部分包含发光材料,其中所述发光材料是聚合物基质中的发光有机染料或 结晶无机发光材料。

    Method of determining a zero point of a current sensor
    9.
    发明申请
    Method of determining a zero point of a current sensor 失效
    确定电流传感器零点的方法

    公开(公告)号:US20070188105A1

    公开(公告)日:2007-08-16

    申请号:US10572835

    申请日:2004-09-09

    申请人: Peter Lurkens

    发明人: Peter Lurkens

    IPC分类号: H05B39/04

    CPC分类号: G01R19/175

    摘要: The invention relates to a method of determining a zero point (V0) of a current sensor in a circuit arrangement for operating a gas discharge lamp. The invention is characterized by the following process steps: the current (11) through the sensor is switched off for a short period during a first half wave (13) and a first test value (V6) is determined, then the current (11) through the sensor is switched off for a short period during a second half wave (14) having a different polarity and a second test value (−V7) is determined, whereupon an average value is formed of the two test values (V6, −V7), and the zero point (Vx, V0) is determined by means of said average value. It is prevented thereby that the zero point drifts during lamp operation, for example owing to heating, and that amplitudes of the positive and negative half waves (13, 14) of the lamp current (11) are formed differently. Impairment of lamp life and visible artefacts in a presented projection image are prevented.

    摘要翻译: 本发明涉及一种确定用于操作气体放电灯的电路装置中的电流传感器的零点(V 0)的方法。 本发明的特征在于以下工艺步骤:通过传感器的电流(11)在第一半波(13)中被切断短时间,并且确定第一测试值(V 6),则电流(11) )通过传感器在具有不同极性的第二半波(14)中被短时间地切断,并且确定第二测试值(-V 7),于是平均值由两个测试值(V 6 ,-V 7),并且通过所述平均值确定零点(Vx,V 0)。 因此,防止在灯操作期间零点漂移,例如由于加热,并且灯电流(11)的正和负半波(13,14)的振幅形成不同。 防止了投影图像中灯寿命和可见伪影的损害。

    Power inverter control device for switching point determination
    10.
    发明授权
    Power inverter control device for switching point determination 失效
    电源逆变器控制装置用于切换点确定

    公开(公告)号:US08324879B2

    公开(公告)日:2012-12-04

    申请号:US12298095

    申请日:2007-04-10

    IPC分类号: G05F1/00

    CPC分类号: H02M1/083 H02M2001/0009

    摘要: Current switching point determination devices use two comparators with fixed threshold values. A power inverter control device for switching point determination is provided which includes a filter circuit and a subsequent single comparator. By this arrangement, the time event is independent of the amplitude and for sufficiently small frequencies also of the frequency.

    摘要翻译: 当前切换点确定设备使用具有固定阈值的两个比较器。 提供了一种用于切换点确定的功率逆变器控制装置,其包括滤波器电路和随后的单个比较器。 通过这种布置,时间事件与振幅无关,频率也与频率的足够小的频率无关。