Instrument device

Details Instrument device Instrument device

2008-03-18

2008-03-18

Smith, R. Alexander (Department: 2859)

Geometrical instruments

Straight-line light ray type

Alignment device

C116S062100, C116SDIG036, C362S029000

Reexamination Certificate

active

10552035

ABSTRACT:
This invention provides an instrument device including: a dial having scale marks; a pointer pointing the scale marks and provided in front of the dial; a light source provided behind the dial and supplying light to the pointer to cause the pointer to emit light; and a cover provided in front of the pointer, the scale marks and the pointer being visually confirmed through the cover, wherein a reflection member is provided at a part of the cover corresponding to a rotation center of the pointer; a reflection part is provided on the dial; and the reflection part is illuminated with light emitted from the pointer and light reflected and scattered by the reflection member after being emitted from the pointer.

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