Means for detecting a tilting state with a light emitting elemen

Details Means for detecting a tilting state with a light emitting elemen Means for detecting a tilting state with a light emitting elemen

1991-02-13

1992-07-28

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

250211K, 25023112, G01D 534

Patent

active

051342839

ABSTRACT:
An optical position detection apparatus, above all, an optical position detection apparatus for detecting the tilting state, such as rolling and pitching of an object, is disclosed. The apparatus includes a light emitting element mounted on a movable member of the object, a condenser lens secured to a lower end of the movable member and a photosensor device provided below the condenser lens for detecting the light radiated by the light emitting element and condensed by the condenser lens.

REFERENCES:
patent: 3811047 (1974-05-01), Shragal
patent: 4239963 (1980-12-01), August et al.
patent: 4584510 (1986-04-01), Hollow

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