Laser beam projection display for head-up display
    1.
    发明公开
    Laser beam projection display for head-up display 审中-公开
    Laserstrahl-Anzeigevorrichtungfür平视显示器

    公开(公告)号:EP2752839A1

    公开(公告)日:2014-07-09

    申请号:EP13193452.3

    申请日:2013-11-19

    Abstract: A laser beam display device includes a dimming setting input unit into which a dimming value corresponding to one of a plural dimming steps may be input. A first dimming processing unit having plural dimming LUTs stores dimming amounts, regarding the respective dimming steps, with the corresponding gradation levels as indexes. A second dimming processing unit having one gain LUT, holding gains regarding the respective dimming steps, and a multiplier. This creates the indexes for the respective dimming LUTs by multiplying a video signal by the gains, and a light source drive unit drives a laser diode on the basis of reference results obtained by referring to the dimming LUTs of the first dimming processing unit. Thus the luminance of the emission beam of the laser diode, which corresponds to the video signal, is dimmed in accordance with a dimming setting input from the dimming setting input unit.

    Abstract translation: 激光束显示装置包括调光设置输入单元,其中可以输入与多个调光步骤之一相对应的调光值。 具有多个调光LUT的第一调光处理单元以相应的灰度级作为指标存储关于各个调光步骤的调光量。 具有一个增益LUT的第二调光处理单元,保持关于各个调光步骤的增益,以及乘法器。 这通过将视频信号乘以增益来创建各个调光LUT的索引,并且光源驱动单元基于通过参考第一调光处理单元的调光LUT获得的参考结果来驱动激光二极管。 因此,对应于视频信号的激光二极管的发射光束的亮度根据来自调光设置输入单元的调光设置输入而变暗。

    Scanning type projector
    4.
    发明公开
    Scanning type projector 审中-公开
    扫描投影机

    公开(公告)号:EP2709366A2

    公开(公告)日:2014-03-19

    申请号:EP13179310.1

    申请日:2013-08-05

    Abstract: A scanning type projector (100) two-dimensionally projecting a laser beam and generating an image according to the present invention comprises: a light source (101, 102, 103) having a light intensity corresponding to a pixel of the image and emitting a laser beam having an elliptical beam; a collimator lens (104, 105, 106) collimating a laser beam emitted from the light source (101, 102, 103) without converting the same into focused light; a beam contracting/shaping element (109) that reduces a luminous beam width in a predetermined direction of the laser beam emitted from the collimator lens (104, 105, 106); a condensing lens (110) that converts a laser beam emitted from the beam contracting/shaping element (109) into focused light corresponding to a projection distance (R); and a two-dimensional scanning unit (111) configured to two-dimensionally scan and project a laser beam emitted from the condensing lens (110).

    Elastic wave device
    9.
    发明公开
    Elastic wave device 审中-公开
    Elastische Wellenvorrichtung

    公开(公告)号:EP2288027A2

    公开(公告)日:2011-02-23

    申请号:EP10006770.1

    申请日:2010-06-30

    CPC classification number: H03H9/0222 H03H9/02559

    Abstract: In a boundary elastic wave resonator formed with a cross finger type transducer (IDT) of a wave length λ of a boundary elastic wave, a silicon oxide film (5), and an aluminum nitride film (6) above a surface of a θYX-LN single-crystal piezoelectric substrate (1) having a predetermined cut angle θ, a film thickness h 1 and a cut angle θ or the like of the silicon oxide film are optimized. For example, the film thickness h 1 and the cut angle θ are made to be 127.5°≤ θ ≤ 129.5° and 20% ≤ h 1 /λ ≤ 100%.

    Abstract translation: 在由边界弹性波的波长»的交叉指型传感器(IDT)形成的边界弹性波谐振器中,在¸YX的表面上方的氧化硅膜(5)和氮化铝膜(6) 优选具有预定切割角度的R N单晶压电基板(1),氧化硅膜的膜厚度h 1和切割角度¸等。 例如,膜厚度h 1和切割角度¸为127.5°‰¤¤129.5°和20%‰¤h 1 /‰¤100%。

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