FIELD: electrical engineering.
SUBSTANCE: device has light diode and optical prism arranged along the axis of the tunnel pusher of the switcher. The optical prism made of a reflecting cone. In addition, the device has transparent button pusher provided with the disk pressing member and metallic cap and transparent optical ring provided with the outer semi-transparent chamfering. The light diode and optical prism are arranged inside the internal space of the transparent button pusher. The transparent optical ring is mounted to be around the disk pressing member for receiving the light beam emitted from the light diode and reflected from the optical prism.
EFFECT: enhanced operation capabilities.
1 dwg
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RU2387921C2 |
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RU2341032C1 |
