公开(公告)号：US3887275A

公开(公告)日：1975-06-03

申请号：US48454274

申请日：1974-07-01

Applicant: HEIST KENNETH D

Inventor： HEIST KENNETH D

IPC: G03B21/04 ,  G03B21/10 ,  G03B31/06 ,  G03B23/02

CPC classification number: G03B21/04 ,  G03B21/10 ,  G03B31/06

Abstract: An automatic slide music stand including a cabinet having a compartment in the top portion thereof and holding therein a slide projector, the top of the cabinet having a projection screen formed integrally therewith to receive images from the projector on the back surface thereof and to show such images therethrough, the projector including a power control switch, a brightness control switch for the intensity of the light source of the projector, an adjustable time providing a mode of timed sequential operation of the sequencing of the showing of a series of slides on the projector, and a foot operated switch for manual control of the projector in both a forward and backward slide changing manner, the device operable such that a series of slides having a musical score thereon may be sequentially automatically projected onto the viewing projection screen by either manual operation of the foot switch by the musician or automatically by the timer adjusted to change the slide at a rate corresponding to the desired flow of music to be played by the musician using the stand during the play of his musical instrument.

Abstract translation: 一种自动幻灯机支架，包括在其顶部具有隔间并在其中保持滑动投影仪的机柜，所述机壳的顶部具有与其一体形成的投影屏幕，以在其后表面上接收来自投影仪的图像， 图像通过其中，投影仪包括电源控制开关，用于投影仪光源强度的亮度控制开关，可调节时间，提供在投影仪上显示一系列幻灯片的顺序的定时顺序操作模式 以及用于以前后滑动方式手动控制投影仪的脚踏开关，该装置可操作使得其上具有乐谱的一系列幻灯片可以通过手动操作顺序地自动投影到观看投影屏幕上 的脚踏开关由音乐家或自动通过定时器调整以更改幻灯片速率cor 响应于在乐器演奏过程中由音乐家使用的乐曲所要播放的音乐流。