Radiant energy – Photocells; circuits and apparatus – Optical or pre-photocell system
Patent
1985-10-18
1987-05-19
LaRoche, Eugene R.
Radiant energy
Photocells; circuits and apparatus
Optical or pre-photocell system
358293, H01J 314
Patent
active
046670998
ABSTRACT:
An optical linear encoder for converting scanning light beams incident thereupon into a series of pulsatory light comprising light transmission parts for passing through the scanning light beams and light non-transmission parts for blocking transmission of the scanning light beams. The light non-transmission parts are alternately arranged with said light transmission parts in predetermined intervals that are determined by the amount of distortion inherently occurring in an optical system through which the scanning light beams travel.
REFERENCES:
patent: 4578577 (1986-03-01), Noguchi
patent: 4587420 (1986-05-01), Noguchi et al.
patent: 4600837 (1986-07-01), DiStefano et al.
Arai Noboru
Shinada Hidetoshi
Fuji Photo Film Co. , Ltd.
LaRoche Eugene R.
Mis David
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