Laser beam deflecting device including a surface with a groove w

Details Laser beam deflecting device including a surface with a groove w Laser beam deflecting device including a surface with a groove w

1989-10-06

1991-10-15

Henry, Jon W.

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

359601, G02B 2610

Patent

active

050568825

ABSTRACT:
A beam deflecting device for scanningly deflecting a beam, comprising a rotational mirror for reflecting the light beam, the rotational mirror having two opposite side surfaces effective to reflect the beam, wherein only the two surfaces are used for scanningly deflecting the beam, and a driver for rotating the rotational mirror in one direction to scanningly deflect the beam. The rotational mirror may have one side surface effective to reflect the beam, wherein only the one surface is used for scanningly deflecting the beam. The rotational mirror has a non-use portion not used for scanningly deflecting the beam, the non-use portion being provided with at least one groove.

REFERENCES:
patent: 3579884 (1970-09-01), Ives et al.
patent: 4082416 (1978-04-01), Runciman et al.
patent: 4304459 (1981-12-01), Kramer
patent: 4421385 (1983-12-01), Yamagushi

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