Linear beam steering device

Details Linear beam steering device Linear beam steering device

1995-10-19

1998-10-20

Dzierzynski, Paul M.

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

359569, 359575, 359900, G02B 2608, G02B 518

Patent

active

058255230

ABSTRACT:
A device for linear beam steering, where a translation of one grating respective the other one results in an increased angular deviation of the light beam. The device includes at least one pair of gratings with parallel lines, different from each other, and each according to a different mathematical formula, spaced at a certain distance parallel one below the other, the spacing of lines in each of the gratings increases from one edge to the other. There can be provided a plurality of such "facets" of gratings arranged one after the other. The double design is compact, inexpensive and essentially aberration free, it has many applications such as scanners for laser range finders, dynamic aiming systems, laser printers and plotters, and many more.

REFERENCES:
patent: 3980389 (1976-09-01), Huignard et al.
patent: 4091281 (1978-05-01), Willhelm et al.
patent: 4106844 (1978-08-01), Bryngdahl et al.
patent: 5162656 (1992-11-01), Matsugu et al.
patent: 5448403 (1995-09-01), Harris
patent: 5495336 (1996-02-01), Nose et al.
Henry H.M. Chau, "Moire Pattern Resulting From Superposition of Two Zone Plates", Appl. Optics, vol. 8, No. 8, Aug. 1969, pp. 1707-1712.

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