Optics: measuring and testing – Range or remote distance finding – With photodetection
Patent
1980-09-29
1982-10-26
Henry, Jon W.
Optics: measuring and testing
Range or remote distance finding
With photodetection
356153, G02B 2717, G02B 1127
Patent
active
043558593
ABSTRACT:
A raster scanner with laser for generating a scanning beam and compact, folded optical system for transmitting the beam to the object to be scanned. The optical system includes a modulator for modulating the beam in accordance with video image signals and a rotatable polygon for scanning the beam across the object to be scanned. The laser is supported at one end in a spherical bearing, permitting rotation of the laser about a point coincident with the optical axis of the scanner and at a second remote end by screw type adjustors which are used to adjustably displace the laser about the pivot point and so align the axis of the laser beam with the optical axis of the scanner. Scanner operating circuits are provided including a circuit enabling one or both of the scan detectors to serve as a light meter when aligning the laser.
REFERENCES:
patent: 3617926 (1971-11-01), Bullinger
patent: 3628175 (1971-12-01), Rigdeh
patent: 3724953 (1973-04-01), Johnston
patent: 3743965 (1973-07-01), Offner
patent: 3753149 (1973-08-01), Kindl et al.
patent: 3847703 (1974-11-01), Kaiser
patent: 4230902 (1980-10-01), Hug et al.
patent: 4308544 (1981-12-01), Lucevo et al.
Antos Ronald L.
Herloski Robert P.
Norton James R.
Henry Jon W.
McMullen Frederick E.
Xerox Corporation
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