Method and apparatus for transferring a pattern on an overlying web by
laser burning into an underlying web
    51.
    发明授权
    Method and apparatus for transferring a pattern on an overlying web by laser burning into an underlying web 失效
    用于通过激光烧结将图案转移到上覆网上的方法和装置进入下面的网

    公开(公告)号:US3979591A

    公开(公告)日:1976-09-07

    申请号:US498954

    申请日:1974-08-20

    Inventor: Daniel Silverman

    Abstract: In the field of the storage and retrieval of information, information records in the form of patterns of microspots of small size and high packing density are formed on a record web by the use of a focussed first laser beam, of a first level of intensity, to evaporate or burn away material to form microperforations in a thin layer of opaque first material on a web of transparent plastic. This invention covers the process of preparing a facsimile record of the pattern of microspots on a master record by exposing a second record web through the microperforations in the first web to a constant intensity focussed second laser beam of less intensity than the first level of intensity. Also means are shown for using an optical pattern on a first layer to control a laser to burn openings into an opaque underlying layer.

    Abstract translation: 在信息的存储和检索领域,通过使用第一强度级别的聚焦的第一激光束,在记录卷筒纸上形成小尺寸和高包装密度的微小图案形式的信息记录, 蒸发或烧掉材料以在透明塑料网上的不透明第一材料薄层中形成微孔。 本发明涵盖通过将第二记录网通过第一网中的微穿孔曝光到比第一强度强度低的恒定强度聚焦的第二激光束来制备主记录上的微孔图案的传真记录的过程。 还示出了在第一层上使用光学图案来控制激光以将开口燃烧到不透明的下层中的装置。

    Pattern generating apparatus
    52.
    发明授权
    Pattern generating apparatus 失效
    图案生成装置

    公开(公告)号:US3976923A

    公开(公告)日:1976-08-24

    申请号:US568522

    申请日:1975-04-16

    Abstract: Integrated circuit mask patterns are laser machined by mounting substrates on a support that is periodically stepped in a y direction after each scan by a laser writing beam in an x direction. X-direction scanning is accomplished by mounting a mirror on a carriage that reciprocates by rebounding between two displaced coil springs. A coding laser beam is reflected from the carriage through a stationary code plate, comprising alternate transparent and opaque stripes, to monitor the position of the carriage and to control the modulation of the writing beam.

    Abstract translation: 通过在x方向上通过激光写入光束扫描每个扫描之后,将衬底安装在沿着y方向周期性阶梯状的支撑件上来激光加工集成电路掩模图案。 通过将反射镜安装在通过两个位移的螺旋弹簧之间的回弹而往复运动的滑架上来实现X方向扫描。 编码激光束通过固定代码板从支架反射,该固定代码板包括交替的透明和不透明条纹,以监视托架的位置并控制书写光束的调制。

    Laser recording system with both surface defect and data error checking
    55.
    发明授权
    Laser recording system with both surface defect and data error checking 失效
    具有两个表面缺陷的激光记录系统和数据错误检查

    公开(公告)号:US3657707A

    公开(公告)日:1972-04-18

    申请号:US3657707D

    申请日:1969-03-17

    Abstract: A laser data recording system for storing digital information in the form of digital bits ablated from an energy-absorbing storage medium by an intensity modulated laser beam. The system provides instantaneous reflective readout of the local surface state of the storage medium as the ablative recording process is initiated at selected locations along a scan line, in response to the intensity of the modulated laser beam. This reflective readout simultaneously provides a recording surface continuity verification signal which is monitored to insure that the storage medium surface is free from defects at the point of recording. The proper sequence of levels of this instantaneous reflective signal verifies that the portions of the data record which are to be ablated are actually generated, and that the regions which are not to be ablated are void-free, thus insuring a completely correct recording. The laser beam is scanned in parallel scan lines across the storage surface and during read-out of stored information the intensity of the laser beam is set at a fixed level sufficiently low that ablation cannot occur. Signals are also provided for automatically centering the laser beam on selected scan line and for servo control of laser intensity. In one embodiment removable and replaceable recording strips are mounted around the surface of the drum. A rectangular crosssection is optically imparted to the laser beam.

    Abstract translation: 一种激光数据记录系统,用于以强度调制激光束从能量吸收存储介质中消除数字位数形式的数字信息。 响应于调制的激光束的强度,随着沿着扫描线的选定位置开始烧蚀记录过程,系统提供存储介质的局部表面状态的瞬时反射读出。 该反射读出同时提供记录表面连续性验证信号,其被监视以确保存储介质表面在记录点处没有缺陷。 该瞬时反射信号的正确级别验证实际生成要消除的数据记录的部分,并且不被消融的区域是无空隙的,从而确保完全正确的记录。 激光束以平行扫描线扫描存储表面,并且在读出所存储的信息期间,将激光束的强度设定在足够低的固定水平,从而不会发生消融。 还提供信号用于将激光束自动定心在选定的扫描线上并用于伺服控制激光强度。 在一个实施例中,可移动和可替换的记录条安装在滚筒的表面周围。 光学地赋予激光束的矩形横截面。

    Bench marks in sheet or web material
    56.
    发明授权
    Bench marks in sheet or web material 失效
    网页标签或网页材料

    公开(公告)号:US3549858A

    公开(公告)日:1970-12-22

    申请号:US3549858D

    申请日:1968-04-09

    Abstract: 1,222,057. Perforating by burning. CONSOLIDATED PAPER (BAHAMAS) Ltd. 1 'April, 1969 [9 April, 1968], No. 17018/69. Heading B4B. A moving web or sheet of material 1 is measured by accurately spacing a reference mark sensing-station 25 downstream of a reference mark forming-station 17, forming a first reference mark 3 at the station 17 by electrically perforating the web 1 as it passes through the station 17, sensing the first mark 3 as the web passes through the sensing station 25, actuating the forming-station 17 on sensing the first mark 3 to produce a second reference mark 3, continuing the procedure to form a series of spaced reference marks 3, and counting the number of marks 3. Preferably, marks 3 invisible to the naked eye but detectable by optical means, including a light source 18 and photomultiplier (29), Fig. 4 (not shown), are produced, e.g. in a paper web 1, by spark dixcharge between electrodes 7, 9, or by means of a laser beam, and specific patterns of holes may be formed, e.g. to reproduce coded information.

    Optical system for laser marking
    58.
    发明授权
    Optical system for laser marking 失效
    激光打标光学系统

    公开(公告)号:US5011253A

    公开(公告)日:1991-04-30

    申请号:US474136

    申请日:1990-05-07

    Applicant: Flemming Olsen

    Inventor: Flemming Olsen

    CPC classification number: B23K26/066 B23K2201/007

    Abstract: An optical system for laser marking, such as for engraving marks such as numbers and dates on surfaces, and exhibiting improved efficiency and improved quality of the resulting mark. The optical system includes a focusing system, such as a lens, and a concave mirror situated between the laser and the mask with its vertex at the focal point of the focusing system and its reflecting surface facing the mask. An inlet opening in the concave mirror is formed about the vertex, and the transverse measurement of the inlet opening is slightly larger than the transverse measurement of the focal point. The mask is formed as a mirror, preferably a plane mirror, with the reflecting surface facing the concave mirror, and the radius of curvature of the concave mirror is longer than twice the distance between the mask and the concave mirror. In operation, the portion of the laser beam radiated through the mask is increased because the portion thereof not passing directly through the mask openings is reflected by the mirror face of the mask back to the concave mirror, which in turn reflects the light back to the mask, such that additional portions of the laser beam pass through the mask openings. The size of the reflecting surface of the concave mirror and consequently the amount of the light reflected by the concave mirror are optimized by the laser beam being focused by the focusing system in the small opening in the vertex of the mirror.

    Abstract translation: PCT No.PCT / DK88 / 00201 Sec。 371日期1990年5月7日 102(e)日期1990年5月7日PCT提交1988年12月2日PCT公布。 出版物WO89 / 05208 日期:1989年6月15日。一种用于激光打标的光学系统,例如用于雕刻标记,例如表面上的数字和日期,并且显示出提高的效率并且提高所得标记的质量。 光学系统包括诸如透镜的聚焦系统和位于激光与掩模之间的凹面镜,其顶点位于聚焦系统的焦点处,其反射表面面向掩模。 凹面镜中的入口开口围绕顶点形成,入口开口的横向测量略大于焦点的横向测量值。 掩模形成为反射镜,优选为平面镜,其中反射表面面向凹面镜,并且凹面镜的曲率半径比掩模和凹面镜之间的距离的两倍长。 在操作中,通过掩模辐射的激光束的部分增加,因为其不直接通过掩模开口的部分被掩模的镜面反射回到凹面镜,反射镜又将光反射回到 掩模,使得激光束的附加部分通过掩模开口。 凹面反射镜的反射面的尺寸以及由凹面镜反射的光的量由激光束被聚焦系统聚焦在反射镜顶点的小开口中而被优化。

    Method and apparatus for optimizing the efficiency and quality of laser
material processing
    60.
    发明授权
    Method and apparatus for optimizing the efficiency and quality of laser material processing 失效
    用于优化激光材料加工效率和质量的方法和装置

    公开(公告)号:US4908493A

    公开(公告)日:1990-03-13

    申请号:US200252

    申请日:1988-05-31

    Applicant: Ingo Susemihl

    Inventor: Ingo Susemihl

    Abstract: The efficiency of laser welding and other laser material processing is optimized according to this invention by rotating the plane of polarization of a linearly polarized laser beam in relation to a work piece of the material being processed simultaneously and in synchronization with steering the laser beam over the work piece so as to keep the plane of polarization parallel to either the plane of incidence or the direction of travel of the beam in relation to the work piece. Also, depending to some extent on the particular processing being accomplished, such as welding or fusing, the angle of incidence of the laser beam on the work piece is kept at or near the polarizing or Brewster's angle. The combination of maintaining the plane of polarization parallel to plane of incidence while also maintaining the angle of incidence at or near the polarizing or Brewster's angle results in only minimal, if any, reflection losses during laser welding. Also, coordinating rotation of the plane of polarization with the translation or steering of a work piece under a laser cutting beam maximizes efficiency and kerf geometry, regardless of the direction of cut.

    Abstract translation: 根据本发明,激光焊接和其他激光材料处理的效率被优化,通过相对于同时被处理的材料的工件旋转线性偏振激光束的偏振面,并且与激光束在 工件,以便保持极化平面相对于工件的入射平面或梁的行进方向。 此外,在某种程度上取决于实现的特定处理,例如焊接或熔合,激光束在工件上的入射角保持在偏光或布鲁斯特角附近或接近。 保持平行于入射平面的极化平面同时保持偏光或布鲁斯特角处或附近的入射角的组合在激光焊接期间仅产生最小的反射损耗(如果有的话)。 此外,无论切割方向如何,在激光切割光束下使偏光平面的旋转与工件的平移或转向协调使效率和切痕几何形状最大化。

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