Photo-typewriter
    1.
    发明授权
    Photo-typewriter 失效
    照片打字机

    公开(公告)号:US4175841A

    公开(公告)日:1979-11-27

    申请号:US873851

    申请日:1978-01-31

    申请人: Gordon J. LaPorte

    发明人: Gordon J. LaPorte

    IPC分类号: B41J2/447 B41J3/36 B41B13/10

    CPC分类号: B41J3/36 B41J2/447

    摘要: An electronic typewriter comprising portable housing means having a typewriter keyboard comprising a plurality of individual finger keys on the housing means and being readily engageable by the user thereof, with chamber means in the housing means for containing a replaceable supply of paper. The paper having an emulsion sensitive to one portion of the light spectrum as an activating agent for producing tonal changes in the emulsion, and sensitive to another portion of the light spectrum as a retarder to stop further tonal change in the emulsion. Grid means is operatively associated with the housing means and extends in a substantially straight line to produce printed lines, with the grid means comprising printing filaments to which the paper is exposed, and the filaments being capable of producing light in the portion of the spectrum for producing the tonal changes in the emulsion. Coupling means electrically interconnects the keys to the grid means so as to progressively activate the grid means across the line in response to each of the keys on the keyboard being engaged during typing, and advancing means for moving the paper from the chamber means relative to the grid means, so as to produce line by line exposure of the paper to the grid means, such that the printed grid line is thereafter exposed to the light of the other portion of the light spectrum so as to stop the tonal change in the emulsion, such that printed typewritten lines are produced on the paper.

    摘要翻译: 一种电子打字机,包括具有打印机键盘的便携式外壳装置,该打字机键盘包括在外壳装置上的多个单独的手指键,并且能够容易地与使用者接合,并在壳体装置中容纳可更换的纸张。 该纸具有对光谱的一部分敏感的乳剂作为用于产生乳液中的色调变化的活化剂,并且对另一部分光谱作为缓凝剂敏感,以停止乳液中的进一步色调变化。 栅格装置与壳体装置可操作地相关联并且以基本上直线延伸以产生印刷线,栅格装置包括印刷纸被曝光的长丝,并且所述长丝能够在光谱的一部分中产生光 产生乳液中的色调变化。 耦合装置将键互连到网格装置,以便响应于在打字期间在键盘上接合的每个键响应于逐行地启动网格装置,以及用于使纸从腔室装置相对于移动的前进装置 栅格意味着将纸张逐行曝光到栅格装置,使得打印的栅格线此后暴露于光谱的另一部分的光以便停止乳液中的色调变化, 使得印刷的打字线在纸上产生。