发明授权
- 专利标题： Visual indicator for an electrical meter movement
- 专利标题（中）： 用于电表运动的视觉指示器
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申请号： US3766473D申请日： 1972-03-31
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公开(公告)号： US3766473A公开(公告)日： 1973-10-16
- 发明人: FLEETMAN H
- 申请人： ELECTRO MECHANICAL INST CO INC
- 专利权人： Electro Mechanical Inst Co Inc
- 当前专利权人： Electro Mechanical Inst Co Inc
- 优先权： US23991372 1972-03-31
- 主分类号： G01R5/04
- IPC分类号： G01R5/04 ; G01R19/00 ; G02B17/04 ; G02B27/02
摘要：
A visual indicator includes a concave reflecting surface having an opening therein. An optical image-producing element moves into and out of the opening under the guidance of an electrical meter movement. The electrical meter movement responds to an electrical signal so that the image produced by the visual indicator is related to the magnitude of the electrical signal applied to the meter movement.