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    • 7. 发明授权
    • Laser illuminating apparatus for illuminating a strip-shaped or linear area
    • 用于照射条形或线性区域的激光照明装置
    • US06845119B2
    • 2005-01-18
    • US10198987
    • 2002-07-22
    • Wolfgang DeckenbachThomas Attenberger
    • Wolfgang DeckenbachThomas Attenberger
    • G02B27/09H01S3/08
    • G02B27/09
    • A laser illuminating apparatus that illuminates a linear or strip-shaped area (S) of sheet material (B) with high radiant power contains a diode laser (2) whose output is followed by two mutually orthogonally oriented rod lenses (4, 6) whose focal length is small in comparison to their distance. Between the two rod lenses (4, 6) a laser light beam fan (L2) is formed. Said fan is focused by the second rod lens (6) on a narrow linear area (S). Behind said area the laser beams diverge at a large angle (α) so that the power density decreases accordingly rapidly. If the light falls on the retina of an observer's eye, the laser light is not focused pointwise but only linearly, which excludes injury to the eye due to the accordingly low power density.
    • 以高辐射功率照亮片材(B)的线状或带状区域(S)的激光照明装置包含二极管激光器(2),二极管激光器(2)的输出后面是两个相互正交取向的棒透镜(4,6) 焦距与其距离相比较小。 在两个棒状透镜(4,6)之间形成有激光束风扇(L2)。 所述风扇由第二棒状透镜(6)聚焦在窄线性区域(S)上。 在所述区域的后面,激光束以大角度(α)发散,使得功率密度相应地迅速降低。 如果光线落在观察者的眼睛的视网膜上,则激光不会点对点,而是线性聚焦,不包括由于相应的低功率密度造成的眼睛受伤。