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公开(公告)号：US5255015A
公开(公告)日：1993-10-19
申请号：US896089
申请日：1992-06-03
CPC分类号： G11B7/127 , B41J2/471 , G02B6/4204 , H01S5/024 , H01S5/02212 , H01S5/02415
摘要： An athermally compensated printhead includes a laser diode having predetermined characteristics for generating a beam of light, a diode mount, cooling means, a collimator lens, and a len mount. The diode mount is formed of a predetermined material with a predetermined coefficient of thermal expansion for mounting the laser diode in the printhead. The cooling means is used to maintain the laser diode at a substantially constant operating temperature for longer life and to avoid wavelength changes. The collimator lens has characteristics which provide predetermined changes in focal length versus changes in ambient temperature over a predetermined temperature range. The len mount is formed of a predetermined material having a predetermined coefficient of thermal expansion for mounting the collimator lens adjacent a first major surface of the diode mount to receive the beam of light from the laser diode. The predetermined coefficient of thermal expansion of the material of the lens mount is chosen to compensate for the changes in focal length of the collimator lens versus changes in ambient temperature over the predetermined temperature range.
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2.发明授权Intensity redistribution for exposure correction in an overfilled symmetrical laser printer 失效在过度填充的对称激光打印机中进行曝光校正的强度再分配
公开(公告)号：US5331468A
公开(公告)日：1994-07-19
申请号：US982322
申请日：1992-11-27
申请人： Mark L. Noethen
发明人： Mark L. Noethen
CPC分类号： G02B27/0927 , B41J2/471 , G02B26/124 , G02B27/09 , G02B5/205 , H04N1/1135
摘要： A method for redistributing intensity of a Gaussian beam of light having a Gaussian shaped intensity profile comprises the steps of exposing a photosensitive material to a scanning beam of a laser printing apparatus, writing a desired pattern onto the photosensitive material with the laser printing apparatus, and interposing the exposed photosensitive material in the Gaussian beam and flattening the Gaussian shaped intensity profile of the Gaussian beam. A beam shaper has a laser source for producing a beam of light, a collimating lens for receiving the beam of light from the laser source and producing a collimated beam of light, an apodizer for receiving the collimated beam of light and flattening a Gaussian intensity of the collimated beam in one dimension only, and shaping optics for receiving the beam from the apodizer and producing a beam that is large in a line scan direction.
摘要翻译： 用于重新分布具有高斯形强度分布的高斯光束的强度的方法包括以下步骤：将感光材料曝光到激光打印设备的扫描光束，用激光打印设备将期望的图案写入感光材料上;以及 将曝光的感光材料插入高斯光束中并使高斯光束的高斯形强度分布变平。 光束整形器具有用于产生光束的激光源，用于接收来自激光源的光束并产生准直光束的准直透镜，用于接收准直光束并变平的高斯光强度的变迹器 仅在一个维度中的准直光束，以及用于接收来自变迹器的光束的成形光学器件，并产生在扫描方向上大的光束。
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3.发明授权
公开(公告)号：US5475415A
公开(公告)日：1995-12-12
申请号：US375058
申请日：1995-01-19
申请人： Mark L. Noethen
发明人： Mark L. Noethen
CPC分类号： B41J2/45 , G02B26/0891 , G02B27/283 , H04N1/1911 , H04N1/1135
摘要： An optical head and printing system for printing an image on a light sensitive print medium includes polarized beam splitting means, and a first and a second group of lasers. The polarized beam splitting means passes light beams with a first polarization propagating from a first surface to a second opposing surface thereof, and reflects light beams with a second orthogonal polarization propagating from a third surface to the second surface thereof. The first group of lasers are disposed in a first plane adjacent the first surface of the polarized beam splitting means for transmitting a first group of diverging laser light beams which are polarized with the first polarization. The second group of lasers are disposed in a second plane adjacent the third surface of the polarized beam splitting means for transmitting a second group of diverging laser light beams which are polarized with the second polarization. The lasers in the first and second group of lasers are positioned at the first and second planes, respectively, with spacings that provide interleaved first and second polarized light beams exiting the second surface of the polarized beam splitting means.
摘要翻译： 用于在光敏打印介质上打印图像的光学头和打印系统包括偏振分束装置和第一组和第二组激光器。 偏振光束分离装置将具有从第一表面传播的第一偏振光束照射到第二相对表面，并且将具有从第三表面传播的第二正交偏振的光束反射到其第二表面。 第一组激光器设置在与偏振光束分离装置的第一表面相邻的第一平面中，用于透射与第一偏振极化的第一组发散激光束。 第二组激光器设置在与偏振光束分离装置的第三表面相邻的第二平面中，用于透射与第二偏振极化的第二组发散激光束。 第一和第二组激光器中的激光器分别定位在第一和第二平面上，其间隔提供离开偏振光束分离装置的第二表面的交错的第一和第二偏振光束。
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