A METHOD FOR REDUCING SPECKLE EFFECT
    2.
    发明申请
    A METHOD FOR REDUCING SPECKLE EFFECT 审中-公开
    减少光谱效应的方法

    公开(公告)号:WO2015010715A1

    公开(公告)日:2015-01-29

    申请号:PCT/EP2013/065423

    申请日:2013-07-22

    Applicant: LEMOPTIX SA

    Abstract: According to the present invention there is provided a method of reducing speckle in a primary light spot which is projected onto a surface by a projection device which comprises a laser, wherein a primary light spot is defined by two or more secondary light spots, the method comprising the steps of (a) consecutively providing the laser with "n" different input currents so that the laser consecutively outputs "n" different light beams, wherein each one of the "n" different light beams defines a secondary light spot on the surface, wherein "n" is an integer value greater than one; and (b) superposing the secondary light spots. There is further provided a corresponding method of projecting a pixel.

    Abstract translation: 根据本发明,提供了一种减少由包括激光器的投影装置投影到表面上的原色光斑中的斑点的方法,其中初级光斑由两个或更多个次光斑限定,该方法 包括以下步骤:(a)连续地为激光器提供“n”个不同的输入电流,使得激光器连续地输出“n”个不同的光束,其中“n”个不同光束中的每一个在表面上限定二次光点 其中,“n”为大于1的整数值; 和(b)叠加二次光斑。 还提供了投影像素的相应方法。

    SPECKLE REDUCER USING A BEAM-SPLITTER
    3.
    发明申请
    SPECKLE REDUCER USING A BEAM-SPLITTER 审中-公开
    使用光束分离器的光束减光器

    公开(公告)号:WO2014053178A1

    公开(公告)日:2014-04-10

    申请号:PCT/EP2012/069591

    申请日:2012-10-04

    Applicant: LEMOPTIX SA

    Abstract: Assembly (1) comprising a laser source (3) and a component for reducing speckle (7) comprising a beam splitter (9) that reflects a first portion (11) of the laser beam and transmits a second portion (13) and a first and second reflecting means (15, 17), the first reflective means (15) receiving the second portion (13) of the laser beam and the second reflective means (17) directing said second portion (13) back to the beam splitter (9), wherein the second portion (13) of the laser beam can be directed from the first (15) to the the second reflective means (17), wherein the first (15), the second (17) reflective means and the means for beam splitting (9) define an optical path for the second portion (13) of the laser beam, the length of which being equal to, or greater than, the coherence length of the laser beam.

    Abstract translation: 包括激光源(3)和用于减少散斑(7)的组件(1)的组件(1),包括反射激光束的第一部分(11)的分束器(9),并且透射第二部分(13)和第一 和第二反射装置(15,17),所述第一反射装置(15)接收所述激光束的第二部分(13),并且所述第二反射装置(17)将所述第二部分(13)引回到所述分束器(9) ),其中激光束的第二部分(13)可以从第一(15)引导到第二反射装置(17),其中第一(15),第二(17)反射装置和用于 光束分裂(9)限定激光束的第二部分(13)的光路,其长度等于或大于激光束的相干长度。

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