INSTRUMENT DEVICE Russian patent published in 2014 - IPC G01D11/28 

FIELD: instrumentation.

SUBSTANCE: present invention relates to instrument device. The instrument device comprises a display panel, a main part of the device, the indicator needle which is mounted on the main part of the device, the transparent light guiding element located above the display panel and the light source which emits light rays in the light guiding element. The light guiding element comprises a number of inner light guiding parts which are located at predetermined intervals along the outer peripheral surface of the light guiding element and which reflect light rays from the light source towards the centre of rotation of the indicator needle, so that the parts of the indicator panel will light in the form of stripes located at predetermined intervals so that the display panel and the light guiding element can be seen when illuminated in stereoscopic form.

EFFECT: improving the quality of presentation of indication and providing improved visibility of the instrument device.

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