METHOD OF COLOUR IMAGE PROJECTION USING SPATIAL LIGHT MODULATION AND LIGHT SOURCE MODULATION
    1.
    发明申请
    METHOD OF COLOUR IMAGE PROJECTION USING SPATIAL LIGHT MODULATION AND LIGHT SOURCE MODULATION 审中-公开
    使用空间光调制和光源调制的彩色图像投影方法

    公开(公告)号:US20090021456A1

    公开(公告)日:2009-01-22

    申请号:US12280109

    申请日:2007-02-12

    IPC分类号: G09G3/32

    摘要: The present invention relates to a method of operating a projection system comprising several solid state light sources (2, 3, 4) of different colour 13, 14, 15) and at least one spatial light modulator (1) having an array of switchable elements. Said array is illuminated by at least one of said light sources (2, 3, 4) for several illumination periods and is addressed such that the light is timely and spatially modulated to project images onto a screen. In the present method said light sources (2, 3, 4) are controlled to emit light modulated in amplitude (15) and/or time (18) during said illumination periods of said array. With the present method an increased greyscale resolution of the projection system can be achieved.

    摘要翻译: 本发明涉及一种操作投影系统的方法,该投影系统包括多个不同颜色的固态光源(2,3,4)13,14,15)和至少一个空间光调制器(1),该空间光调制器具有可切换元件阵列 。 所述阵列由至少一个所述光源(2,3,4)照亮几个照明周期,并被寻址,使得光被及时和空间调制以将图像投影到屏幕上。 在本方法中,所述光源(2,3,4)被控制为在所述阵列的所述照明周期期间发射以幅度(15)和/或时间(18)调制的光。 利用本方法可以实现投影系统的增加的灰度分辨率。

    Projection system
    2.
    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
    3.
    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。

    Operation of a discharge lamp
    4.
    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。

    Method and circuit arrangement for operating a high-pressure gas discharge lamp
    5.
    发明申请
    Method and circuit arrangement for operating a high-pressure gas discharge lamp 失效
    用于操作高压气体放电灯的方法和电路装置

    公开(公告)号:US20050151482A1

    公开(公告)日:2005-07-14

    申请号:US10513484

    申请日:2003-05-05

    CPC分类号: H05B41/2928

    摘要: A method and a circuit arrangement for the operation of a high-pressure gas discharge lamp (HID [high intensity discharge] lamp or UHP [ultra high performance] lamp) is described, which lamp is particularly suitable for illuminating projection displays with sequential color rendering (for example LCOS or SCR-DMD systems) with a pulsatory lamp current. Artefacts in the color rendering are avoided through the generation of at least one compensation pulse of a given amplitude and a given timing and through superimposition thereof on the lamp current.

    摘要翻译: 描述了用于高压气体放电灯(HID [高强度放电]灯或UHP [超高性能]灯)的操作的方法和电路装置,该灯特别适用于照明具有顺序显色的投影显示 (例如LCOS或SCR-DMD系统),具有脉动灯电流。 通过产生给定幅度和给定定时的至少一个补偿脉冲并且通过将其叠加在灯电流上来避免彩色渲染中的伪像。

    Method and Circuit Arrangement for Operating a High-Pressure Gas Discharge Lamp
    6.
    发明申请
    Method and Circuit Arrangement for Operating a High-Pressure Gas Discharge Lamp 有权
    操作高压气体放电灯的方法和电路布置

    公开(公告)号:US20080258638A1

    公开(公告)日:2008-10-23

    申请号:US11569722

    申请日:2005-06-03

    IPC分类号: H05B41/36

    摘要: A description is given of a method and a circuit arrangement for operating a high-pressure gas discharge lamp with a lamp current superposed with first current pulses, in particular in a system for the time-sequential production of (primary) colors and possibly white segments, from which an image to be displayed is synthesized, in which, in order to change or correct color and/or brightness properties of the image, the first current pulses are adjusted with regard to their amplitude and/or temporal length and/or temporal position relative to the production of the colors and/or white segments. A description is also given of a projection system comprising such a circuit arrangement.

    摘要翻译: 给出了一种用于操作具有与第一电流脉冲叠加的灯电流的高压气体放电灯的方法和电路装置的描述,特别是在用于(主)颜色和可能的白色段的时间顺序生成的系统中 为了改变或校正图像的颜色和/或亮度特性,合成了要显示的图像,第一电流脉冲关于它们的幅度和/或时间长度和/或时间被调整 相对于颜色和/或白色片段的制作的位置。 还给出了包括这种电路装置的投影系统的描述。

    Image projector with intensity-controlled light source
    7.
    发明申请
    Image projector with intensity-controlled light source 失效
    具有强度控制光源的图像投影机

    公开(公告)号:US20060033888A1

    公开(公告)日:2006-02-16

    申请号:US10531016

    申请日:2003-10-07

    CPC分类号: H04N9/3117 H05B41/2928

    摘要: The invention relates to a projection system for image representation, with a display (61), at least one lamp (10), and at least one sensor (7) for generating a sensor signal for monitoring and compensating changes in the luminous flux provided by the at least one lamp (10). To achieve a monitoring of the light quantity actually incident on the display (61) which is as accurate and as interference-free as possible, an optical component (31) is arranged in a light path between the lamp (10) and the display (61), which component allows a first light component to pass through and reflects a second light component such that one of the light components is directed at the display (61) and the other light component is directed at the sensor (7) arranged outside the light path. A sensor signal generated in this manner renders it possible to compensate for fluctuations in the luminous flux provided by the lamp (10) through the control of a lamp driver (101) in an effective manner and practically without light losses and without being influenced by the brightness fluctuations generated by a color modulator or other components of the system.

    摘要翻译: 本发明涉及一种用于图像表示的投影系统,具有显示器(61),至少一个灯(10)和至少一个传感器(7),用于产生用于监视和补偿由 所述至少一个灯(10)。 为了实现对实际入射在显示器(61)上的光量的监测尽可能准确且无干扰,光学部件(31)布置在灯(10)和显示器(10)之间的光路中 61),该部件允许第一光分量穿过并反射第二光分量,使得一个光分量指向显示器(61),另一个光分量指向布置在显示器(61)外的传感器(7) 光路。 以这种方式产生的传感器信号使得可以通过控制灯驱动器(101)以有效的方式来补偿由灯(10)提供的光通量的波动,实际上没有光损耗并且不受 由色彩调制器或系统的其他组件产生的亮度波动。

    High-Pressure Discharge Lamp
    8.
    发明申请
    High-Pressure Discharge Lamp 失效
    高压放电灯

    公开(公告)号:US20080054774A1

    公开(公告)日:2008-03-06

    申请号:US10556112

    申请日:2004-05-04

    IPC分类号: H01J61/40

    摘要: The invention relates to a high-pressure discharge lamp which comprises at least a burner (2) having a symmetrical discharge chamber (21), where at least the outer contour of the burner (2) has an elliptical shape in the region of the discharge chamber (21), two electrodes (41, 42) extending into the discharge chamber (21) and arranged in mutual opposition on the major axis of symmetry of the discharge chamber (21), and a multilayer interference filter (3) arranged on the outer contour of the burner (2) in the region of the discharge chamber (21), wherein the interference filter (3) mainly reflects light from at least one wavelength range of the UV light into the space between the two electrodes (41, 42).

    摘要翻译: 本发明涉及一种高压放电灯,其至少包括具有对称放电室(21)的燃烧器(2),其中至少燃烧器(2)的外轮廓在排出区域中具有椭圆形状 腔室(21),延伸到排放室(21)中并以放电室(21)的主要对称轴线相互相对布置的两个电极(41,42)和布置在放电室(21)上的多层干涉滤光器 燃烧器(2)的外部轮廓在放电室(21)的区域中,其中干涉滤光器(3)主要将来自UV光的至少一个波长范围的光反射到两个电极(41,42)之间的空间 )。

    Optical projection devices including a lens plate integrator
    9.
    发明授权
    Optical projection devices including a lens plate integrator 失效
    光学投影装置包括透镜板积分器

    公开(公告)号:US5997143A

    公开(公告)日:1999-12-07

    申请号:US879167

    申请日:1997-06-19

    摘要: A lens plate integrator includes first and second lens plates which transmit light from a light source on an optical path to a projection plane. Each lens plate includes corresponding first and second groups of lens elements; light from the first group of the second plate is focused on a projection face in the projection plane, while light from the second group of the second plate is focused in front of or behind the projection plane and only partially illuminates the projection face.

    摘要翻译: 透镜板积分器包括从光路上的光源将光透射到投影平面的第一透镜板和第二透镜板。 每个透镜板包括相应的第一和第二组透镜元件; 来自第二板的第一组的光聚焦在投影平面中的投影面上,而来自第二板的第二组的光聚焦在投影平面的前面或后面,并且仅部分地照亮投影面。