Device for determining the location of indicators

Details Device for determining the location of indicators Device for determining the location of indicators

1996-09-30

1998-03-31

Font, Frank G.

Optics: measuring and testing

By polarized light examination

With light attenuation

356372, G01B 1100, G01B 1114

Patent

active

057344744

ABSTRACT:
There is shown a device for determining the position of moveable indicators via drive gears (1, 2, 3) by means of a reflex light shutter (4, 12) and one through hole (8a, 8b, 8c, 8d, 11) provided at least in the drive gear (1, 3) in the beam path of the reflex light shutter (4, 12), in which one or more reflector elements (12) are provided upon a second drive gear (2).

REFERENCES:
patent: 4358753 (1982-11-01), Cascini
patent: 4618260 (1986-10-01), Okubo
patent: 4700062 (1987-10-01), Ernst
patent: 5430693 (1995-07-01), Ganter et al.
patent: 5640007 (1997-06-01), Talbott et al.

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