1980-10-08
1982-09-21
Henry, Jon W.
350286, G02B 2712, G02B 504
Patent
active
043504108
ABSTRACT:
A special purpose optical collimator system which generates multiple collimated light beams, with precisely related angular separation of the beams. The system is comprised of a stack of relatively flat plate-like refracted prisms (10.sub.1, 10.sub.2 . . . 10.sub.15) in the form of wedges, each having a specified angular deviation, mounted on top of one another in a fixture (44) which holds the wedges so that they are adapted to operate at minimum angular deviation and thus are relatively insensitive to rotational and angular charges. A collimated source of monochromatic light generated for example by a helium-neon laser (20) and a collimated beam expander (24, 30 and 54) provides a common incident beam (14) to the wedges whereupon a plurality of, for example, equally spaced emergent beams (12.sub.1, 12.sub.2 . . . 12.sub.15) are provided.
REFERENCES:
patent: 3670260 (1972-06-01), Koester et al.
patent: 3758197 (1973-09-01), Klang et al.
patent: 3862357 (1975-01-01), Kanazawa et al.
patent: 4070574 (1978-01-01), Fletcher et al.
patent: 4125864 (1978-11-01), Aughton
patent: 4294546 (1981-10-01), Killmann et al.
Henry Jon W.
Manning John R.
Sandler Ronald F.
The United States of America as represented by the Administrator
Tresansky John O.
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